synfig-studio/trunk/src/gtkmm/workarea.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file workarea.cpp
   3 **      \brief Template Header
   4 **
   5 **      $Id$
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
   9 **      Copyright (c) 2006 Yue Shi Lai
  10 **      Copyright (c) 2007, 2008 Chris Moore
  11 **
  12 **      This package is free software; you can redistribute it and/or
  13 **      modify it under the terms of the GNU General Public License as
  14 **      published by the Free Software Foundation; either version 2 of
  15 **      the License, or (at your option) any later version.
  16 **
  17 **      This package is distributed in the hope that it will be useful,
  18 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  20 **      General Public License for more details.
  21 **      \endlegal
  22 */
  23 /* ========================================================================= */
  24
  25 /* === H E A D E R S ======================================================= */
  26
  27 #ifdef USING_PCH
  28 #       include "pch.h"
  29 #else
  30 #ifdef HAVE_CONFIG_H
  31 #       include <config.h>
  32 #endif
  33
  34 #include <sigc++/adaptors/hide.h>
  35
  36 #include "workarea.h"
  37 #include "canvasview.h"
  38 #include "app.h"
  39 #include <gtkmm/window.h>
  40 #include <gtkmm/image.h>
  41 #include <gtkmm/drawingarea.h>
  42 #include <gtkmm/ruler.h>
  43 #include <gtkmm/arrow.h>
  44 #include <gtkmm/image.h>
  45 #include <gtkmm/scrollbar.h>
  46 #include <cmath>
  47 #include <sigc++/retype_return.h>
  48 #include <sigc++/retype.h>
  49 #include <sigc++/hide.h>
  50 #include <ETL/misc>
  51
  52 #include <synfig/target_scanline.h>
  53 #include <synfig/target_tile.h>
  54 #include <synfig/surface.h>
  55 #include <synfig/valuenode_composite.h>
  56 #include <synfigapp/canvasinterface.h>
  57 #include "event_mouse.h"
  58 #include "event_layerclick.h"
  59 #include "widget_color.h"
  60 #include <synfig/distance.h>
  61 #include "workarearenderer.h"
  62
  63 #include "renderer_canvas.h"
  64 #include "renderer_grid.h"
  65 #include "renderer_guides.h"
  66 #include "renderer_timecode.h"
  67 #include "renderer_ducks.h"
  68 #include "renderer_dragbox.h"
  69 #include "renderer_bbox.h"
  70 #include "asyncrenderer.h"
  71 #include <gtkmm/frame.h>
  72
  73 #include <synfig/mutex.h>
  74
  75 #include "general.h"
  76
  77 #endif
  78
  79 /* === U S I N G =========================================================== */
  80
  81 using namespace std;
  82 using namespace etl;
  83 using namespace synfig;
  84 using namespace studio;
  85
  86 /* === M A C R O S ========================================================= */
  87
  88 #define RULER_FIX               15
  89
  90 #ifndef stratof
  91 #define stratof(X) (atof((X).c_str()))
  92 #define stratoi(X) (atoi((X).c_str()))
  93 #endif
  94
  95
  96 /* === G L O B A L S ======================================================= */
  97
  98 /* === C L A S S E S ======================================================= */
  99
 100 class studio::WorkAreaTarget : public synfig::Target_Tile
 101 {
 102 public:
 103         WorkArea *workarea;
 104         bool low_res;
 105         int w,h;
 106         int real_tile_w,real_tile_h;
 107         //std::vector<Glib::RefPtr<Gdk::Pixbuf> >::iterator tile_iter;
 108
 109         int twindow_start, twindow_width, twindow_height, twindow_pad;
 110         int refresh_id;
 111
 112         bool onionskin;
 113         bool onion_first_tile;
 114         int onion_layers;
 115
 116         std::list<synfig::Time> onion_skin_queue;
 117
 118         synfig::Mutex mutex;
 119
 120         void set_onion_skin(bool x, int *onions)
 121         {
 122                 onionskin=x;
 123
 124                 Time time(rend_desc().get_time_start());
 125
 126                 if(!onionskin)
 127                         return;
 128                 onion_skin_queue.push_back(time);
 129
 130                 try
 131                 {
 132                 Time thistime=time;
 133                 for(int i=0; i<onions[0]; i++)
 134                         {
 135                                 Time keytime=get_canvas()->keyframe_list().find_prev(thistime)->get_time();
 136                                 onion_skin_queue.push_back(keytime);
 137                                 thistime=keytime;
 138                         }
 139                 }
 140                 catch(...)
 141                 {  }
 142
 143                 try
 144                 {
 145                 Time thistime=time;
 146                 for(int i=0; i<onions[1]; i++)
 147                         {
 148                                 Time keytime=get_canvas()->keyframe_list().find_next(thistime)->get_time();
 149                                 onion_skin_queue.push_back(keytime);
 150                                 thistime=keytime;
 151                         }
 152                 }
 153                 catch(...)
 154                 {  }
 155
 156                 onion_layers=onion_skin_queue.size();
 157
 158                 onion_first_tile=false;
 159         }
 160 public:
 161
 162         WorkAreaTarget(WorkArea *workarea,int w, int h):
 163                 workarea(workarea),
 164                 low_res(workarea->get_low_resolution_flag()),
 165                 w(w),
 166                 h(h),
 167                 real_tile_w(workarea->tile_w),
 168                 real_tile_h(workarea->tile_h),
 169                 refresh_id(workarea->refreshes),
 170                 onionskin(false),
 171                 onion_layers(0)
 172         {
 173                 //set_remove_alpha();
 174                 //set_avoid_time_sync();
 175                 set_clipping(true);
 176                 if(low_res)
 177                 {
 178                         int div = workarea->get_low_res_pixel_size();
 179                         set_tile_w(workarea->tile_w/div);
 180                         set_tile_h(workarea->tile_h/div);
 181                 }
 182                 else
 183                 {
 184                         set_tile_w(workarea->tile_w);
 185                         set_tile_h(workarea->tile_h);
 186                 }
 187                 set_canvas(workarea->get_canvas());
 188                 set_quality(workarea->get_quality());
 189         }
 190
 191         ~WorkAreaTarget()
 192         {
 193                 workarea->queue_draw();
 194         }
 195
 196         virtual bool set_rend_desc(synfig::RendDesc *newdesc)
 197         {
 198                 assert(workarea);
 199                 newdesc->set_flags(RendDesc::PX_ASPECT|RendDesc::IM_SPAN);
 200                 if(low_res) {
 201                         int div = workarea->get_low_res_pixel_size();
 202                         newdesc->set_wh(w/div,h/div);
 203                 }
 204                 else
 205                         newdesc->set_wh(w,h);
 206
 207                 if(
 208                                 workarea->get_w()!=w
 209                         ||      workarea->get_h()!=h
 210                 ) workarea->set_wh(w,h,4);
 211
 212                 workarea->full_frame=false;
 213
 214                 desc=*newdesc;
 215                 return true;
 216         }
 217
 218         virtual int total_tiles()const
 219         {
 220                 int tw(rend_desc().get_w()/get_tile_w());
 221                 int th(rend_desc().get_h()/get_tile_h());
 222                 if(rend_desc().get_w()%get_tile_w()!=0)tw++;
 223                 if(rend_desc().get_h()%get_tile_h()!=0)th++;
 224                 return tw*th;
 225         }
 226
 227         virtual int next_frame(Time& time)
 228         {
 229                 synfig::Mutex::Lock lock(mutex);
 230
 231                 if(!onionskin)
 232                         return synfig::Target_Tile::next_frame(time);
 233
 234                 onion_first_tile=(onion_layers==(signed)onion_skin_queue.size());
 235
 236                 if(!onion_skin_queue.empty())
 237                 {
 238                         time=onion_skin_queue.front();
 239                         onion_skin_queue.pop_front();
 240                 }
 241                 else
 242                         return 0;
 243
 244                 return onion_skin_queue.size()+1;
 245         }
 246
 247         virtual int next_tile(int& x, int& y)
 248         {
 249                 synfig::Mutex::Lock lock(mutex);
 250                 //if(workarea->tile_queue.empty()) return 0;
 251
 252                 //int curr_tile(workarea->tile_queue.front());
 253                 //workarea->tile_queue.pop_front();
 254                 int curr_tile(workarea->next_unrendered_tile(refresh_id-onion_skin_queue.size()));
 255                 if(curr_tile<0)
 256                         return 0;
 257
 258                 // Width of the image(in tiles)
 259                 int tw(rend_desc().get_w()/get_tile_w());
 260                 if(rend_desc().get_w()%get_tile_w()!=0)tw++;
 261
 262                 y=(curr_tile/tw)*get_tile_w();
 263                 x=(curr_tile%tw)*get_tile_h();
 264
 265                 // Mark this tile as "up-to-date"
 266                 if(onionskin)
 267                         workarea->tile_book[curr_tile].second=refresh_id-onion_skin_queue.size();
 268                 else
 269                         workarea->tile_book[curr_tile].second=refresh_id;
 270
 271                 return total_tiles()-curr_tile+1;
 272         }
 273
 274
 275         virtual bool start_frame(synfig::ProgressCallback */*cb*/)
 276         {
 277                 synfig::Mutex::Lock lock(mutex);
 278
 279                 int tw(rend_desc().get_w()/get_tile_w());
 280                 if(rend_desc().get_w()%get_tile_w()!=0)tw++;
 281                 int th(rend_desc().get_h()/get_tile_h());
 282                 if(rend_desc().get_h()%get_tile_h()!=0)th++;
 283
 284                 twindow_start=0;
 285                 twindow_width=tw;
 286                 twindow_height=th;
 287                 twindow_pad=0;
 288
 289                 workarea->tile_book.resize(total_tiles());
 290                 //tile_iter=workarea->tile_book.begin()+twindow_start;
 291                 return true;
 292         }
 293
 294         static void free_buff(const guint8 *x) { free(const_cast<guint8*>(x)); }
 295
 296         virtual bool add_tile(const synfig::Surface &surface, int x, int y)
 297         {
 298                 synfig::Mutex::Lock lock(mutex);
 299                 assert(surface);
 300
 301                 PixelFormat pf(PF_RGB);
 302
 303                 const int total_bytes(get_tile_w()*get_tile_h()*synfig::channels(pf));
 304
 305                 unsigned char *buffer((unsigned char*)malloc(total_bytes));
 306
 307                 if(!surface || !buffer)
 308                         return false;
 309                 {
 310                         unsigned char *dest(buffer);
 311                         const Color *src(surface[0]);
 312                         int w(get_tile_w());
 313                         int h(get_tile_h());
 314                         int x(surface.get_w()*surface.get_h());
 315                         //if(low_res) {
 316                         //      int div = workarea->get_low_res_pixel_size();
 317                         //      w/=div,h/=div;
 318                         //}
 319                         Color dark(0.6,0.6,0.6);
 320                         Color lite(0.8,0.8,0.8);
 321                         for(int i=0;i<x;i++)
 322                                 dest=Color2PixelFormat(
 323                                         Color::blend(
 324                                                 (*(src++)),
 325                                                 ((i/surface.get_w())*8/h+(i%surface.get_w())*8/w)&1?dark:lite,
 326                                                 1.0f
 327                                         ).clamped(),
 328                                         pf,dest,App::gamma
 329                                 );
 330                 }
 331
 332                 x/=get_tile_w();
 333                 y/=get_tile_h();
 334                 int tw(rend_desc().get_w()/get_tile_w());
 335                 if(rend_desc().get_w()%get_tile_w()!=0)tw++;
 336                 unsigned int index=y*tw+x;
 337
 338                 // Sanity check
 339                 if(index>workarea->tile_book.size())
 340                         return false;
 341
 342                 Glib::RefPtr<Gdk::Pixbuf> pixbuf;
 343
 344                 pixbuf=Gdk::Pixbuf::create_from_data(
 345                         buffer, // pointer to the data
 346                         Gdk::COLORSPACE_RGB, // the colorspace
 347                         ((pf&PF_A)==PF_A), // has alpha?
 348                         8, // bits per sample
 349                         surface.get_w(),        // width
 350                         surface.get_h(),        // height
 351                         surface.get_w()*synfig::channels(pf), // stride (pitch)
 352                         sigc::ptr_fun(&WorkAreaTarget::free_buff)
 353                 );
 354
 355                 if(low_res)
 356                 {
 357                         // We need to scale up
 358                         int div = workarea->get_low_res_pixel_size();
 359                         pixbuf=pixbuf->scale_simple(
 360                                 surface.get_w()*div,
 361                                 surface.get_h()*div,
 362                                 Gdk::INTERP_NEAREST
 363                         );
 364                 }
 365
 366                 if(!onionskin || onion_first_tile || !workarea->tile_book[index].first)
 367                 {
 368                         workarea->tile_book[index].first=pixbuf;
 369                 }
 370                 else
 371                 {
 372                         pixbuf->composite(
 373                                 workarea->tile_book[index].first, // Dest
 374                                 0,//int dest_x
 375                                 0,//int dest_y
 376                                 pixbuf->get_width(), // dest width
 377                                 pixbuf->get_height(), // dest_height,
 378                                 0, // double offset_x
 379                                 0, // double offset_y
 380                                 1, // double scale_x
 381                                 1, // double scale_y
 382                                 Gdk::INTERP_NEAREST, // interp
 383                                 255/(onion_layers-onion_skin_queue.size()+1) //int overall_alpha
 384                         );
 385                 }
 386
 387                 //if(index%2)
 388                         workarea->queue_draw();
 389                 assert(workarea->tile_book[index].first);
 390                 return true;
 391         }
 392
 393         virtual void end_frame()
 394         {
 395                 //workarea->queue_draw();
 396         }
 397 };
 398
 399
 400 class studio::WorkAreaTarget_Full : public synfig::Target_Scanline
 401 {
 402 public:
 403         WorkArea *workarea;
 404         bool low_res;
 405         int w,h;
 406         int real_tile_w,real_tile_h;
 407         //std::vector<Glib::RefPtr<Gdk::Pixbuf> >::iterator tile_iter;
 408
 409         int twindow_start, twindow_width, twindow_height, twindow_pad;
 410         int refresh_id;
 411
 412         bool onionskin;
 413         bool onion_first_tile;
 414         int onion_layers;
 415
 416         Surface surface;
 417
 418         std::list<synfig::Time> onion_skin_queue;
 419
 420         void set_onion_skin(bool x, int *onions)
 421         {
 422                 onionskin=x;
 423
 424                 Time time(rend_desc().get_time_start());
 425
 426                 if(!onionskin)
 427                         return;
 428                 onion_skin_queue.push_back(time);
 429                 //onion_skin_queue.push_back(time-1);
 430                 //onion_skin_queue.push_back(time+1);
 431                 try
 432                 {
 433                 Time thistime=time;
 434                 for(int i=0; i<onions[0]; i++)
 435                         {
 436                                 Time keytime=get_canvas()->keyframe_list().find_prev(thistime)->get_time();
 437                                 onion_skin_queue.push_back(keytime);
 438                                 thistime=keytime;
 439                         }
 440                 }
 441                 catch(...)
 442                 {  }
 443
 444                 try
 445                 {
 446                 Time thistime=time;
 447                 for(int i=0; i<onions[1]; i++)
 448                         {
 449                                 Time keytime=get_canvas()->keyframe_list().find_next(thistime)->get_time();
 450                                 onion_skin_queue.push_back(keytime);
 451                                 thistime=keytime;
 452                         }
 453                 }
 454                 catch(...)
 455                 {  }
 456
 457                 onion_layers=onion_skin_queue.size();
 458
 459                 onion_first_tile=false;
 460         }
 461 public:
 462
 463         WorkAreaTarget_Full(WorkArea *workarea,int w, int h):
 464                 workarea(workarea),
 465                 low_res(workarea->get_low_resolution_flag()),
 466                 w(w),
 467                 h(h),
 468                 refresh_id(workarea->refreshes),
 469                 onionskin(false),
 470                 onion_layers(0)
 471         {
 472                 set_canvas(workarea->get_canvas());
 473                 set_quality(workarea->get_quality());
 474         }
 475
 476         ~WorkAreaTarget_Full()
 477         {
 478         }
 479
 480         virtual bool set_rend_desc(synfig::RendDesc *newdesc)
 481         {
 482                 assert(workarea);
 483                 newdesc->set_flags(RendDesc::PX_ASPECT|RendDesc::IM_SPAN);
 484                 if(low_res)
 485                 {
 486                         int div = workarea->get_low_res_pixel_size();
 487                         newdesc->set_wh(w/div,h/div);
 488                 }
 489                 else
 490                         newdesc->set_wh(w,h);
 491
 492                 if(
 493                                 workarea->get_w()!=w
 494                         ||      workarea->get_h()!=h
 495                 ) workarea->set_wh(w,h,4);
 496
 497                 surface.set_wh(newdesc->get_w(),newdesc->get_h());
 498
 499                 desc=*newdesc;
 500                 workarea->full_frame=true;
 501                 workarea->tile_book.resize(1);
 502                 return true;
 503         }
 504
 505         virtual int next_frame(Time& time)
 506         {
 507                 // Mark this tile as "up-to-date"
 508                 if(onionskin)
 509                         workarea->tile_book[0].second=refresh_id-onion_skin_queue.size();
 510                 else
 511                         workarea->tile_book[0].second=refresh_id;
 512
 513                 if(!onionskin)
 514                         return synfig::Target_Scanline::next_frame(time);
 515
 516                 onion_first_tile=(onion_layers==(signed)onion_skin_queue.size());
 517
 518                 if(!onion_skin_queue.empty())
 519                 {
 520                         time=onion_skin_queue.front();
 521                         onion_skin_queue.pop_front();
 522                 }
 523                 else
 524                         return 0;
 525                 return onion_skin_queue.size()+1;
 526         }
 527
 528
 529         virtual bool start_frame(synfig::ProgressCallback */*cb*/)
 530         {
 531                 return true;
 532         }
 533
 534         virtual Color * start_scanline(int scanline)
 535         {
 536                 return surface[scanline];
 537         }
 538
 539         virtual bool end_scanline()
 540         {
 541                 return true;
 542         }
 543
 544         static void free_buff(const guint8 *x) { free(const_cast<guint8*>(x)); }
 545
 546         virtual void end_frame()
 547         {
 548                 assert(surface);
 549
 550                 PixelFormat pf(PF_RGB);
 551
 552                 const int total_bytes(surface.get_w()*surface.get_h()*synfig::channels(pf));
 553
 554                 unsigned char *buffer((unsigned char*)malloc(total_bytes));
 555
 556                 if(!surface || !buffer)
 557                         return;
 558                 {
 559                         unsigned char *dest(buffer);
 560                         const Color *src(surface[0]);
 561                         int w(surface.get_w());
 562                         //int h(surface.get_h());
 563                         int x(surface.get_w()*surface.get_h());
 564                         //if(low_res) {
 565                         //      int div = workarea->get_low_res_pixel_size();
 566                         //      w/=div,h/=div;
 567                         //}
 568                         Color dark(0.6,0.6,0.6);
 569                         Color lite(0.8,0.8,0.8);
 570                         int tw=workarea->tile_w;
 571                         int th=workarea->tile_h;
 572                         if(low_res)
 573                         {
 574                                 int div = workarea->get_low_res_pixel_size();
 575                                 tw/=div;
 576                                 th/=div;
 577                         }
 578                         for(int i=0;i<x;i++)
 579                                 dest=Color2PixelFormat(
 580                                         Color::blend(
 581                                                 (*(src++)),
 582                                                 ((i/w)*8/th+(i%w)*8/tw)&1?dark:lite,
 583                                                 1.0f
 584                                         ).clamped(),
 585                                         pf,
 586                                         dest,
 587                                         App::gamma
 588                                 );
 589                 }
 590
 591                 Glib::RefPtr<Gdk::Pixbuf> pixbuf;
 592
 593                 pixbuf=Gdk::Pixbuf::create_from_data(
 594                         buffer, // pointer to the data
 595                         Gdk::COLORSPACE_RGB, // the colorspace
 596                         ((pf&PF_A)==PF_A), // has alpha?
 597                         8, // bits per sample
 598                         surface.get_w(),        // width
 599                         surface.get_h(),        // height
 600                         surface.get_w()*synfig::channels(pf), // stride (pitch)
 601                         sigc::ptr_fun(&WorkAreaTarget::free_buff)
 602                 );
 603
 604                 if(low_res)
 605                 {
 606                         // We need to scale up
 607                         int div = workarea->get_low_res_pixel_size();
 608                         pixbuf=pixbuf->scale_simple(
 609                                 surface.get_w()*div,
 610                                 surface.get_h()*div,
 611                                 Gdk::INTERP_NEAREST
 612                         );
 613                 }
 614
 615                 int index=0;
 616
 617                 if(!onionskin || onion_first_tile || !workarea->tile_book[index].first)
 618                 {
 619                         workarea->tile_book[index].first=pixbuf;
 620                 }
 621                 else
 622                 {
 623                         pixbuf->composite(
 624                                 workarea->tile_book[index].first, // Dest
 625                                 0,//int dest_x
 626                                 0,//int dest_y
 627                                 pixbuf->get_width(), // dest width
 628                                 pixbuf->get_height(), // dest_height,
 629                                 0, // double offset_x
 630                                 0, // double offset_y
 631                                 1, // double scale_x
 632                                 1, // double scale_y
 633                                 Gdk::INTERP_NEAREST, // interp
 634                                 255/(onion_layers-onion_skin_queue.size()+1) //int overall_alpha
 635                         );
 636                 }
 637
 638                 workarea->queue_draw();
 639                 assert(workarea->tile_book[index].first);
 640         }
 641 };
 642
 643
 644
 645
 646 /* === M E T H O D S ======================================================= */
 647
 648
 649 WorkArea::WorkArea(etl::loose_handle<synfigapp::CanvasInterface> canvas_interface):
 650         Gtk::Table(4+RULER_FIX, 3, false),
 651         canvas_interface(canvas_interface),
 652         canvas(canvas_interface->get_canvas()),
 653         scrollx_adjustment(0,-4,4,0.01,0.1),
 654         scrolly_adjustment(0,-4,4,0.01,0.1),
 655         w(TILE_SIZE),
 656         h(TILE_SIZE),
 657         last_event_time(0),
 658         progresscallback(0),
 659         dragging(DRAG_NONE),
 660         show_grid(false),
 661         tile_w(TILE_SIZE),
 662         tile_h(TILE_SIZE),
 663         timecode_width(0),
 664         timecode_height(0)
 665 {
 666         show_guides=true;
 667         curr_input_device=0;
 668         full_frame=false;
 669         allow_duck_clicks=true;
 670         allow_layer_clicks=true;
 671         render_idle_func_id=0;
 672         zoom=prev_zoom=1.0;
 673         quality=10;
 674         low_res_pixel_size=2;
 675         rendering=false;
 676         canceled_=false;
 677         low_resolution=true;
 678         pw=0.001;
 679         ph=0.001;
 680         last_focus_point=Point(0,0);
 681         onion_skin=false;
 682         onion_skins[0]=0;
 683         onion_skins[1]=2;
 684         queued=false;
 685         dirty_trap_enabled=false;
 686         solid_lines=true;
 687
 688         dirty_trap_queued=0;
 689
 690         meta_data_lock=false;
 691
 692         insert_renderer(new Renderer_Canvas,    000);
 693         insert_renderer(new Renderer_Grid,              100);
 694         insert_renderer(new Renderer_Guides,    200);
 695         insert_renderer(new Renderer_Ducks,             300);
 696         insert_renderer(new Renderer_BBox,              399);
 697         insert_renderer(new Renderer_Dragbox,   400);
 698         insert_renderer(new Renderer_Timecode,  500);
 699
 700         signal_duck_selection_changed().connect(sigc::mem_fun(*this,&studio::WorkArea::queue_draw));
 701         signal_strokes_changed().connect(sigc::mem_fun(*this,&studio::WorkArea::queue_draw));
 702         signal_grid_changed().connect(sigc::mem_fun(*this,&studio::WorkArea::queue_draw));
 703         signal_grid_changed().connect(sigc::mem_fun(*this,&studio::WorkArea::save_meta_data));
 704         signal_sketch_saved().connect(sigc::mem_fun(*this,&studio::WorkArea::save_meta_data));
 705
 706         // Not that it really makes a difference... (setting this to zero, that is)
 707         refreshes=0;
 708
 709         drawing_area=manage(new class Gtk::DrawingArea());
 710         drawing_area->show();
 711         drawing_area->set_extension_events(Gdk::EXTENSION_EVENTS_ALL);
 712
 713         drawing_frame=manage(new Gtk::Frame);
 714         drawing_frame->add(*drawing_area);
 715         //drawing_frame->set_shadow_type(Gtk::SHADOW_NONE);
 716         //drawing_frame->property_border_width()=5;
 717         //drawing_frame->modify_fg(Gtk::STATE_NORMAL,Gdk::Color("#00ffff"));
 718         //drawing_frame->modify_base(Gtk::STATE_NORMAL,Gdk::Color("#ff00ff"));
 719         /*drawing_frame->modify_fg(Gtk::STATE_ACTIVE,Gdk::Color("#00ffff"));
 720         drawing_frame->modify_base(Gtk::STATE_ACTIVE,Gdk::Color("#ff00ff"));
 721         drawing_frame->modify_bg(Gtk::STATE_ACTIVE,Gdk::Color("#00ff00"));
 722         drawing_frame->modify_fg(Gtk::STATE_INSENSITIVE,Gdk::Color("#00ffff"));
 723         drawing_frame->modify_base(Gtk::STATE_INSENSITIVE,Gdk::Color("#ff00ff"));
 724         drawing_frame->modify_bg(Gtk::STATE_INSENSITIVE,Gdk::Color("#00ff00"));
 725         drawing_frame->modify_fg(Gtk::STATE_SELECTED,Gdk::Color("#00ffff"));
 726         drawing_frame->modify_base(Gtk::STATE_SELECTED,Gdk::Color("#ff00ff"));
 727         drawing_frame->modify_bg(Gtk::STATE_SELECTED,Gdk::Color("#00ff00"));
 728         */
 729         //drawing_frame->set_state(Gtk::STATE_NORMAL);
 730
 731         drawing_frame->show();
 732
 733         attach(*drawing_frame, 1, 3+RULER_FIX, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 734
 735         Gtk::IconSize iconsize=Gtk::IconSize::from_name("synfig-small_icon");
 736
 737
 738         // Create the vertical and horizontal rulers
 739         vruler = manage(new class Gtk::VRuler());
 740         hruler = manage(new class Gtk::HRuler());
 741         vruler->set_metric(Gtk::PIXELS);
 742         hruler->set_metric(Gtk::PIXELS);
 743         vruler->show();
 744         hruler->show();
 745         attach(*vruler, 0, 1, 1, 2, Gtk::SHRINK|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 746         attach(*hruler, 1, 3+RULER_FIX, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 747         hruler->signal_event().connect(sigc::mem_fun(*this, &WorkArea::on_hruler_event));
 748         vruler->signal_event().connect(sigc::mem_fun(*this, &WorkArea::on_vruler_event));
 749         hruler->add_events(Gdk::BUTTON1_MOTION_MASK | Gdk::BUTTON2_MOTION_MASK |Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK);
 750         vruler->add_events(Gdk::BUTTON1_MOTION_MASK | Gdk::BUTTON2_MOTION_MASK |Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK);
 751
 752         // Create the menu button
 753         menubutton=manage(new class Gtk::Button());
 754         Gtk::Arrow *arrow1 = manage(new class Gtk::Arrow(Gtk::ARROW_RIGHT, Gtk::SHADOW_OUT));
 755         menubutton->add(*arrow1);
 756         menubutton->show_all();
 757         menubutton->signal_pressed().connect(sigc::mem_fun(*this, &WorkArea::popup_menu));
 758         attach(*menubutton, 0, 1, 0, 1, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 759
 760
 761
 762         Gtk::VScrollbar *vscrollbar1 = manage(new class Gtk::VScrollbar(*get_scrolly_adjustment()));
 763         Gtk::HScrollbar *hscrollbar1 = manage(new class Gtk::HScrollbar(*get_scrollx_adjustment()));
 764         vscrollbar1->show();
 765         hscrollbar1->show();
 766         attach(*vscrollbar1, 3+RULER_FIX, 4+RULER_FIX, 1, 2, Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 767         attach(*hscrollbar1, 2+RULER_FIX, 3+RULER_FIX, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::FILL, 0, 0);
 768
 769         ZoomDial *zoomdial=manage(new class ZoomDial(iconsize));
 770         zoomdial->signal_zoom_in().connect(sigc::mem_fun(*this, &studio::WorkArea::zoom_in));
 771         zoomdial->signal_zoom_out().connect(sigc::mem_fun(*this, &studio::WorkArea::zoom_out));
 772         zoomdial->signal_zoom_fit().connect(sigc::mem_fun(*this, &studio::WorkArea::zoom_fit));
 773         zoomdial->signal_zoom_norm().connect(sigc::mem_fun(*this, &studio::WorkArea::zoom_norm));
 774         zoomdial->show();
 775         attach(*zoomdial, 0, 2+RULER_FIX, 2, 3, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 776
 777         drawing_area->add_events(Gdk::KEY_PRESS_MASK | Gdk::KEY_RELEASE_MASK);
 778         add_events(Gdk::KEY_PRESS_MASK);
 779         drawing_area->add_events(Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
 780         drawing_area->add_events(Gdk::BUTTON1_MOTION_MASK | Gdk::BUTTON2_MOTION_MASK |Gdk::POINTER_MOTION_MASK);
 781
 782         // ----------------- Attach signals
 783
 784         drawing_area->signal_expose_event().connect(sigc::mem_fun(*this, &WorkArea::refresh));
 785         drawing_area->signal_event().connect(sigc::mem_fun(*this, &WorkArea::on_drawing_area_event));
 786         drawing_area->signal_size_allocate().connect(sigc::hide(sigc::mem_fun(*this, &WorkArea::refresh_dimension_info)));
 787
 788
 789
 790         canvas_interface->signal_rend_desc_changed().connect(sigc::mem_fun(*this, &WorkArea::refresh_dimension_info));
 791         // When either of the scrolling adjustments change, then redraw.
 792         get_scrollx_adjustment()->signal_value_changed().connect(sigc::mem_fun(*this, &WorkArea::queue_scroll));
 793         get_scrolly_adjustment()->signal_value_changed().connect(sigc::mem_fun(*this, &WorkArea::queue_scroll));
 794         get_scrollx_adjustment()->signal_value_changed().connect(sigc::mem_fun(*this, &WorkArea::refresh_dimension_info));
 795         get_scrolly_adjustment()->signal_value_changed().connect(sigc::mem_fun(*this, &WorkArea::refresh_dimension_info));
 796
 797         get_canvas()->signal_meta_data_changed("grid_size").connect(sigc::mem_fun(*this,&WorkArea::load_meta_data));
 798         get_canvas()->signal_meta_data_changed("grid_snap").connect(sigc::mem_fun(*this,&WorkArea::load_meta_data));
 799         get_canvas()->signal_meta_data_changed("grid_show").connect(sigc::mem_fun(*this,&WorkArea::load_meta_data));
 800         get_canvas()->signal_meta_data_changed("guide_show").connect(sigc::mem_fun(*this,&WorkArea::load_meta_data));
 801         get_canvas()->signal_meta_data_changed("guide_x").connect(sigc::mem_fun(*this,&WorkArea::load_meta_data));
 802         get_canvas()->signal_meta_data_changed("guide_y").connect(sigc::mem_fun(*this,&WorkArea::load_meta_data));
 803         get_canvas()->signal_meta_data_changed("onion_skin").connect(sigc::mem_fun(*this,&WorkArea::load_meta_data));
 804         get_canvas()->signal_meta_data_changed("guide_snap").connect(sigc::mem_fun(*this,&WorkArea::load_meta_data));
 805         get_canvas()->signal_meta_data_changed("sketch").connect(sigc::mem_fun(*this,&WorkArea::load_meta_data));
 806         get_canvas()->signal_meta_data_changed("solid_lines").connect(sigc::mem_fun(*this,&WorkArea::load_meta_data));
 807
 808         queued=false;
 809         meta_data_lock=false;
 810         set_focus_point(Point(0,0));
 811
 812
 813         load_meta_data();
 814         // Load sketch
 815         {
 816                 String data(canvas->get_meta_data("sketch"));
 817                 if(!data.empty())
 818                 {
 819                         if(!load_sketch(data))
 820                                 load_sketch(dirname(canvas->get_file_name())+ETL_DIRECTORY_SEPARATOR+basename(data));
 821                 }
 822         }
 823
 824         hruler->property_max_size()=double(10.0);
 825         vruler->property_max_size()=double(10.0);
 826
 827         drawing_area->set_flags(drawing_area->get_flags()|Gtk::CAN_FOCUS);
 828 }
 829
 830 WorkArea::~WorkArea()
 831 {
 832 //      delete [] buffer;
 833
 834         // don't leave the render function queued if we are about to vanish;
 835         // that causes crashes
 836         if(render_idle_func_id)
 837                 render_idle_func_id=0;
 838 }
 839
 840 #ifdef SINGLE_THREADED
 841 bool
 842 WorkArea::get_updating()const
 843 {
 844         return App::single_threaded && async_renderer && async_renderer->updating;
 845 }
 846 #endif
 847
 848 #ifdef SINGLE_THREADED
 849 void
 850 WorkArea::stop_updating(bool cancel)
 851 {
 852         async_renderer->stop();
 853         if (cancel) canceled_=true;
 854 }
 855 #endif
 856
 857 void
 858 WorkArea::save_meta_data()
 859 {
 860         if(meta_data_lock)
 861                 return;
 862         meta_data_lock=true;
 863
 864         Vector s(get_grid_size());
 865         canvas_interface->set_meta_data("grid_size",strprintf("%f %f",s[0],s[1]));
 866         canvas_interface->set_meta_data("grid_snap",get_grid_snap()?"1":"0");
 867         canvas_interface->set_meta_data("guide_snap",get_guide_snap()?"1":"0");
 868         canvas_interface->set_meta_data("guide_show",get_show_guides()?"1":"0");
 869         canvas_interface->set_meta_data("grid_show",show_grid?"1":"0");
 870         canvas_interface->set_meta_data("onion_skin",onion_skin?"1":"0");
 871         {
 872                 String data;
 873                 GuideList::const_iterator iter;
 874                 for(iter=get_guide_list_x().begin();iter!=get_guide_list_x().end();++iter)
 875                 {
 876                         if(!data.empty())
 877                                 data+=' ';
 878                         data+=strprintf("%f",*iter);
 879                 }
 880                 if(!data.empty())
 881                         canvas_interface->set_meta_data("guide_x",data);
 882
 883                 data.clear();
 884                 for(iter=get_guide_list_y().begin();iter!=get_guide_list_y().end();++iter)
 885                 {
 886                         if(!data.empty())
 887                                 data+=' ';
 888                         data+=strprintf("%f",*iter);
 889                 }
 890                 if(!data.empty())
 891                         canvas_interface->set_meta_data("guide_y",data);
 892         }
 893
 894         if(get_sketch_filename().size())
 895         {
 896                 if(dirname(canvas->get_file_name())==dirname(get_sketch_filename()))
 897                         canvas_interface->set_meta_data("sketch",basename(get_sketch_filename()));
 898                 else
 899                         canvas_interface->set_meta_data("sketch",get_sketch_filename());
 900         }
 901
 902         meta_data_lock=false;
 903 }
 904
 905 void
 906 WorkArea::load_meta_data()
 907 {
 908         if(meta_data_lock)
 909                 return;
 910         meta_data_lock=true;
 911
 912         String data;
 913
 914         data=canvas->get_meta_data("grid_size");
 915         if(!data.empty())
 916         {
 917                 float gx(get_grid_size()[0]),gy(get_grid_size()[1]);
 918
 919                 String::iterator iter(find(data.begin(),data.end(),' '));
 920                 String tmp(data.begin(),iter);
 921
 922                 if(!tmp.empty())
 923                         gx=stratof(tmp);
 924                 else
 925                         synfig::error("WorkArea::load_meta_data(): Unable to parse data for \"grid_size\", which was \"%s\"",data.c_str());
 926
 927                 if(iter==data.end())
 928                         tmp.clear();
 929                 else
 930                         tmp=String(iter+1,data.end());
 931
 932                 if(!tmp.empty())
 933                         gy=stratof(tmp);
 934                 else
 935                         synfig::error("WorkArea::load_meta_data(): Unable to parse data for \"grid_size\", which was \"%s\"",data.c_str());
 936
 937                 set_grid_size(Vector(gx,gy));
 938         }
 939
 940         data=canvas->get_meta_data("grid_show");
 941         if(data.size() && (data=="1" || data[0]=='t' || data[0]=='T'))
 942                 show_grid=true;
 943         if(data.size() && (data=="0" || data[0]=='f' || data[0]=='F'))
 944                 show_grid=false;
 945
 946         data=canvas->get_meta_data("solid_lines");
 947         if(data.size() && (data=="1" || data[0]=='t' || data[0]=='T'))
 948                 solid_lines=true;
 949         if(data.size() && (data=="0" || data[0]=='f' || data[0]=='F'))
 950                 solid_lines=false;
 951
 952         data=canvas->get_meta_data("guide_show");
 953         if(data.size() && (data=="1" || data[0]=='t' || data[0]=='T'))
 954                 show_guides=true;
 955         if(data.size() && (data=="0" || data[0]=='f' || data[0]=='F'))
 956                 show_guides=false;
 957
 958         data=canvas->get_meta_data("grid_snap");
 959         if(data.size() && (data=="1" || data[0]=='t' || data[0]=='T'))
 960                 set_grid_snap(true);
 961         if(data.size() && (data=="0" || data[0]=='f' || data[0]=='F'))
 962                 set_grid_snap(false);
 963
 964         data=canvas->get_meta_data("guide_snap");
 965         if(data.size() && (data=="1" || data[0]=='t' || data[0]=='T'))
 966                 set_guide_snap(true);
 967         if(data.size() && (data=="0" || data[0]=='f' || data[0]=='F'))
 968                 set_guide_snap(false);
 969
 970         data=canvas->get_meta_data("onion_skin");
 971         if(data.size() && (data=="1" || data[0]=='t' || data[0]=='T'))
 972                 set_onion_skin(true);
 973         if(data.size() && (data=="0" || data[0]=='f' || data[0]=='F'))
 974                 set_onion_skin(false);
 975
 976         data=canvas->get_meta_data("guide_x");
 977         get_guide_list_x().clear();
 978         while(!data.empty())
 979         {
 980                 String::iterator iter(find(data.begin(),data.end(),' '));
 981                 String guide(data.begin(),iter);
 982
 983                 if(!guide.empty())
 984                         get_guide_list_x().push_back(stratof(guide));
 985
 986                 if(iter==data.end())
 987                         data.clear();
 988                 else
 989                         data=String(iter+1,data.end());
 990         }
 991         //sort(get_guide_list_x());
 992
 993         data=canvas->get_meta_data("guide_y");
 994         get_guide_list_y().clear();
 995         while(!data.empty())
 996         {
 997                 String::iterator iter(find(data.begin(),data.end(),' '));
 998                 String guide(data.begin(),iter);
 999
1000                 if(!guide.empty())
1001                         get_guide_list_y().push_back(stratof(guide));
1002
1003                 if(iter==data.end())
1004                         data.clear();
1005                 else
1006                         data=String(iter+1,data.end());
1007         }
1008         //sort(get_guide_list_y());
1009
1010         meta_data_lock=false;
1011         queue_draw();
1012 }
1013
1014 void
1015 WorkArea::set_onion_skin(bool x)
1016 {
1017         if(onion_skin==x)
1018                 return;
1019         onion_skin=x;
1020         save_meta_data();
1021         queue_render_preview();
1022         signal_onion_skin_changed()();
1023 }
1024
1025 bool
1026 WorkArea::get_onion_skin()const
1027 {
1028         return onion_skin;
1029 }
1030
1031 void
1032 WorkArea::enable_grid()
1033 {
1034         show_grid=true;
1035         save_meta_data();
1036         queue_draw();
1037 }
1038
1039 void
1040 WorkArea::disable_grid()
1041 {
1042         show_grid=false;
1043         save_meta_data();
1044         queue_draw();
1045 }
1046
1047 void
1048 WorkArea::set_show_guides(bool x)
1049 {
1050         show_guides=x;
1051         save_meta_data();
1052         queue_draw();
1053 }
1054
1055 void
1056 WorkArea::toggle_grid()
1057 {
1058         show_grid=!show_grid;
1059         save_meta_data();
1060         queue_draw();
1061 }
1062
1063 void
1064 WorkArea::set_low_resolution_flag(bool x)
1065 {
1066         if(x!=low_resolution)
1067         {
1068                 low_resolution=x;
1069                 queue_render_preview();
1070         }
1071 }
1072
1073 void
1074 WorkArea::toggle_low_resolution_flag()
1075 {
1076         set_low_resolution_flag(!get_low_resolution_flag());
1077 }
1078
1079 void
1080 WorkArea::popup_menu()
1081 {
1082         signal_popup_menu()();
1083 }
1084
1085 void
1086 WorkArea::set_grid_size(const synfig::Vector &s)
1087 {
1088         Duckmatic::set_grid_size(s);
1089         save_meta_data();
1090         queue_draw();
1091 }
1092
1093 void
1094 WorkArea::set_focus_point(const synfig::Point &point)
1095 {
1096         // These next three lines try to ensure that we place the
1097         // focus on a pixel boundary
1098         /*Point adjusted(point[0]/abs(get_pw()),point[1]/abs(get_ph()));
1099         adjusted[0]=(abs(adjusted[0]-floor(adjusted[0]))<0.5)?floor(adjusted[0])*abs(get_pw()):ceil(adjusted[0])*abs(get_ph());
1100         adjusted[1]=(abs(adjusted[1]-floor(adjusted[1]))<0.5)?floor(adjusted[1])*abs(get_ph()):ceil(adjusted[1])*abs(get_ph());
1101         */
1102         const synfig::Point& adjusted(point);
1103
1104         synfig::RendDesc &rend_desc(get_canvas()->rend_desc());
1105         Real x_factor=(rend_desc.get_br()[0]-rend_desc.get_tl()[0]>0)?-1:1;
1106         Real y_factor=(rend_desc.get_br()[1]-rend_desc.get_tl()[1]>0)?-1:1;
1107
1108         get_scrollx_adjustment()->set_value(adjusted[0]*x_factor);
1109         get_scrolly_adjustment()->set_value(adjusted[1]*y_factor);
1110 }
1111
1112 synfig::Point
1113 WorkArea::get_focus_point()const
1114 {
1115         synfig::RendDesc &rend_desc(get_canvas()->rend_desc());
1116         Real x_factor=(rend_desc.get_br()[0]-rend_desc.get_tl()[0]>0)?-1:1;
1117         Real y_factor=(rend_desc.get_br()[1]-rend_desc.get_tl()[1]>0)?-1:1;
1118
1119         return synfig::Point(get_scrollx_adjustment()->get_value()*x_factor, get_scrolly_adjustment()->get_value()*y_factor);
1120 }
1121
1122 bool
1123 WorkArea::set_wh(int W, int H,int CHAN)
1124 {
1125         // If our size is already set, don't set it again
1126         if(W==w && H==h && CHAN==bpp)
1127         {
1128                 return true;
1129         }
1130         if(W<=0 || H<=0 || CHAN<=0)
1131                 return false;
1132
1133         assert(W>0);
1134         assert(H>0);
1135         assert(CHAN>0);
1136
1137         // Set all of the parameters
1138         w=W;
1139         h=H;
1140         bpp=CHAN;
1141
1142         refresh_dimension_info();
1143
1144         tile_book.clear();
1145
1146         return true;
1147 }
1148
1149 bool
1150 WorkArea::on_key_press_event(GdkEventKey* event)
1151 {
1152         if(get_selected_ducks().empty())
1153                 return false;
1154
1155         Real multiplier(1.0);
1156
1157         if(Gdk::ModifierType(event->state)&GDK_SHIFT_MASK)
1158                 multiplier=10.0;
1159
1160         Vector nudge;
1161         switch(event->keyval)
1162         {
1163                 case GDK_Left:
1164                         nudge=Vector(-pw,0);
1165                         break;
1166                 case GDK_Right:
1167                         nudge=Vector(pw,0);
1168                         break;
1169                 case GDK_Up:
1170                         nudge=Vector(0,-ph);
1171                         break;
1172                 case GDK_Down:
1173                         nudge=Vector(0,ph);
1174                         break;
1175                 default:
1176                         return false;
1177                         break;
1178         }
1179
1180         synfigapp::Action::PassiveGrouper grouper(instance.get(),_("Nudge"));
1181
1182         // Grid snap does not apply to nudging
1183         bool grid_snap_holder(get_grid_snap());
1184         bool guide_snap_holder(get_guide_snap());
1185         set_grid_snap(false);
1186
1187         try {
1188                 start_duck_drag(get_selected_duck()->get_trans_point());
1189                 translate_selected_ducks(get_selected_duck()->get_trans_point()+nudge*multiplier);
1190                 end_duck_drag();
1191         }
1192         catch(String)
1193         {
1194                 canvas_view->duck_refresh_flag=true;
1195                 canvas_view->queue_rebuild_ducks();
1196         }
1197
1198         set_grid_snap(grid_snap_holder);
1199         set_guide_snap(guide_snap_holder);
1200
1201         return true;
1202 }
1203
1204 bool
1205 WorkArea::on_drawing_area_event(GdkEvent *event)
1206 {
1207         synfig::Point mouse_pos;
1208     float bezier_click_pos;
1209         const float radius((abs(pw)+abs(ph))*4);
1210         int button_pressed(0);
1211         float pressure(0);
1212         bool is_mouse(false);
1213         Gdk::ModifierType modifier(Gdk::ModifierType(0));
1214
1215         // Handle input stuff
1216         if(
1217                 event->any.type==GDK_MOTION_NOTIFY ||
1218                 event->any.type==GDK_BUTTON_PRESS ||
1219                 event->any.type==GDK_2BUTTON_PRESS ||
1220                 event->any.type==GDK_3BUTTON_PRESS ||
1221                 event->any.type==GDK_BUTTON_RELEASE
1222         )
1223         {
1224                 GdkDevice *device;
1225                 if(event->any.type==GDK_MOTION_NOTIFY)
1226                 {
1227                         device=event->motion.device;
1228                         modifier=Gdk::ModifierType(event->motion.state);
1229                 }
1230                 else
1231                 {
1232                         device=event->button.device;
1233                         modifier=Gdk::ModifierType(event->button.state);
1234                         drawing_area->grab_focus();
1235                 }
1236
1237                 // Make sure we recognize the device
1238                 if(curr_input_device)
1239                 {
1240                         if(curr_input_device!=device)
1241                         {
1242                                 assert(device);
1243                                 curr_input_device=device;
1244                                 signal_input_device_changed()(curr_input_device);
1245                         }
1246                 }
1247                 else if(device)
1248                 {
1249                         curr_input_device=device;
1250                         signal_input_device_changed()(curr_input_device);
1251                 }
1252
1253                 assert(curr_input_device);
1254
1255                 // Calculate the position of the
1256                 // input device in canvas coordinates
1257                 // and the buttons
1258                 if(!event->button.axes)
1259                 {
1260                         mouse_pos=synfig::Point(screen_to_comp_coords(synfig::Point(event->button.x,event->button.y)));
1261                         button_pressed=event->button.button;
1262                         pressure=1.0f;
1263                         is_mouse=true;
1264                         if(isnan(event->button.x) || isnan(event->button.y))
1265                                 return false;
1266                 }
1267                 else
1268                 {
1269                         double x(event->button.axes[0]);
1270                         double y(event->button.axes[1]);
1271                         if(isnan(x) || isnan(y))
1272                                 return false;
1273
1274                         pressure=event->button.axes[2];
1275                         //synfig::info("pressure=%f",pressure);
1276                         pressure-=0.04f;
1277                         pressure/=1.0f-0.04f;
1278
1279
1280                         assert(!isnan(pressure));
1281
1282                         mouse_pos=synfig::Point(screen_to_comp_coords(synfig::Point(x,y)));
1283
1284                         button_pressed=event->button.button;
1285
1286                         if(button_pressed==1 && pressure<0 && (event->any.type!=GDK_BUTTON_RELEASE && event->any.type!=GDK_BUTTON_PRESS))
1287                                 button_pressed=0;
1288                         if(pressure<0)
1289                                 pressure=0;
1290
1291                         //if(event->any.type==GDK_BUTTON_PRESS && button_pressed)
1292                         //      synfig::info("Button pressed on input device = %d",event->button.button);
1293
1294                         //if(event->button.axes[2]>0.1)
1295                         //      button_pressed=1;
1296                         //else
1297                         //      button_pressed=0;
1298                 }
1299         }
1300         // GDK mouse scrolling events
1301         else if(event->any.type==GDK_SCROLL)
1302         {
1303                 // GDK information needed to properly interpret mouse
1304                 // scrolling events are: scroll.state, scroll.x/scroll.y, and
1305                 // scroll.direction. The value of scroll.direction will be
1306                 // obtained later.
1307
1308                 modifier=Gdk::ModifierType(event->scroll.state);
1309                 mouse_pos=synfig::Point(screen_to_comp_coords(synfig::Point(event->scroll.x,event->scroll.y)));
1310         }
1311
1312         // Handle the renderables
1313         {
1314                 std::set<etl::handle<WorkAreaRenderer> >::iterator iter;
1315                 for(iter=renderer_set_.begin();iter!=renderer_set_.end();++iter)
1316                 {
1317                         if((*iter)->get_enabled())
1318                                 if((*iter)->event_vfunc(event))
1319                                 {
1320                                         // Event handled. Return true.
1321                                         return true;
1322                                 }
1323                 }
1324         }
1325
1326         // Event hasn't been handled, pass it down
1327         switch(event->type)
1328     {
1329         case GDK_BUTTON_PRESS:
1330                 {
1331                 switch(button_pressed)
1332                 {
1333                 case 1: // Attempt to click on a duck
1334                 {
1335                         etl::handle<Duck> duck;
1336                         dragging=DRAG_NONE;
1337
1338                         if(allow_duck_clicks)
1339                         {
1340                                 duck=find_duck(mouse_pos,radius);
1341
1342                                 if(duck)
1343                                 {
1344                                         // make a note of whether the duck we click on was selected or not
1345                                         if(duck_is_selected(duck))
1346                                                 clicked_duck=duck;
1347                                         else
1348                                         {
1349                                                 clicked_duck=0;
1350                                                 // if CTRL isn't pressed, clicking an unselected duck will unselect all other ducks
1351                                                 if(!(modifier&GDK_CONTROL_MASK))
1352                                                         clear_selected_ducks();
1353                                                 select_duck(duck);
1354                                         }
1355                                 }
1356                         }
1357                         //else
1358                         //      clear_selected_ducks();
1359
1360
1361
1362                         selected_bezier=find_bezier(mouse_pos,radius,&bezier_click_pos);
1363                         if(duck)
1364                         {
1365                                 if (!duck->get_editable())
1366                                         return true;
1367
1368                                 //get_selected_duck()->signal_user_click(0)();
1369                                 //if(clicked_duck)clicked_duck->signal_user_click(0)();
1370
1371                                 // if the user is holding shift while clicking on a tangent duck, consider splitting the tangent
1372                                 if (event->motion.state&GDK_SHIFT_MASK && duck->get_type() == Duck::TYPE_TANGENT)
1373                                 {
1374                                         synfigapp::ValueDesc value_desc = duck->get_value_desc();
1375
1376                                         // we have the tangent, but need the vertex - that's the parent
1377                                         if (value_desc.parent_is_value_node()) {
1378                                                 ValueNode_Composite::Handle parent_value_node = value_desc.get_parent_value_node();
1379
1380                                                 // if the tangent isn't split, then split it
1381                                                 if (!((*(parent_value_node->get_link("split")))(get_time()).get(bool())))
1382                                                 {
1383                                                         if (get_canvas_view()->canvas_interface()->
1384                                                                 change_value(synfigapp::ValueDesc(parent_value_node,
1385                                                                                                                                   parent_value_node->get_link_index_from_name("split")),
1386                                                                                          true))
1387                                                         {
1388                                                                 // rebuild the ducks from scratch, so the tangents ducks aren't connected
1389                                                                 get_canvas_view()->rebuild_ducks();
1390
1391                                                                 // reprocess the mouse click
1392                                                                 return on_drawing_area_event(event);
1393                                                         }
1394                                                         else
1395                                                                 return true;
1396                                                 }
1397                                         } else {
1398                                                 // I don't know how to access the vertex from the tangent duck when originally drawing the bline in the bline tool
1399
1400                                                 // synfig::ValueNode::Handle vn = value_desc.get_value_node();
1401                                                 synfig::info("parent isn't value node?  shift-drag-tangent doesn't work in bline tool yet...");
1402                                         }
1403                                 }
1404
1405                                 dragging=DRAG_DUCK;
1406                                 drag_point=mouse_pos;
1407                                 //drawing_area->queue_draw();
1408                                 start_duck_drag(mouse_pos);
1409                                 get_canvas_view()->reset_cancel_status();
1410                                 return true;
1411                         }
1412 // I commented out this section because
1413 // it was causing issues when rotoscoping.
1414 // At the moment, we don't need it, so
1415 // this was the easiest way to fix the problem.
1416 /*
1417                         else
1418                         if(selected_bezier)
1419                         {
1420                                 selected_duck=0;
1421                                 selected_bezier->signal_user_click(0)(bezier_click_pos);
1422                         }
1423 */
1424                         else
1425                         {
1426                                 //clear_selected_ducks();
1427                                 selected_bezier=0;
1428                                 if(canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,BUTTON_LEFT,mouse_pos,pressure,modifier))==Smach::RESULT_OK)
1429                                 {
1430                                         // Check for a guide click
1431                                         GuideList::iterator iter;
1432
1433                                         iter=find_guide_x(mouse_pos,radius);
1434                                         if(iter==get_guide_list_x().end())
1435                                         {
1436                                                 curr_guide_is_x=false;
1437                                                 iter=find_guide_y(mouse_pos,radius);
1438                                         }
1439                                         else
1440                                                 curr_guide_is_x=true;
1441                                         if(iter!=get_guide_list_x().end() && iter!=get_guide_list_y().end())
1442                                         {
1443                                                 dragging=DRAG_GUIDE;
1444                                                 curr_guide=iter;
1445                                                 return true;
1446                                         }
1447
1448
1449                                         // All else fails, try making a selection box
1450                                         dragging=DRAG_BOX;
1451                                         curr_point=drag_point=mouse_pos;
1452                                         return true;
1453                                 }
1454                         }
1455                         break;
1456                 }
1457                 case 2: // Attempt to drag and move the window
1458                 {
1459                         etl::handle<Duck> duck=find_duck(mouse_pos,radius);
1460                         etl::handle<Bezier> bezier=find_bezier(mouse_pos,radius,&bezier_click_pos);
1461                         if(duck)
1462                                 duck->signal_user_click(1)();
1463                         else
1464                         if(bezier)
1465                                 bezier->signal_user_click(1)(bezier_click_pos);
1466
1467                         if(canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,BUTTON_MIDDLE,mouse_pos,pressure,modifier))==Smach::RESULT_OK)
1468                         if(is_mouse)
1469                         {
1470                                 dragging=DRAG_WINDOW;
1471                                 drag_point=mouse_pos;
1472                                 signal_user_click(1)(mouse_pos);
1473                         }
1474                         break;
1475                 }
1476                 case 3: // Attempt to either get info on a duck, or open the menu
1477                 {
1478                         etl::handle<Duck> duck=find_duck(mouse_pos,radius);
1479                         etl::handle<Bezier> bezier=find_bezier(mouse_pos,radius,&bezier_click_pos);
1480
1481                         Layer::Handle layer(get_canvas()->find_layer(mouse_pos));
1482                         if(duck)
1483                         {
1484                                 if(get_selected_ducks().size()<=1)
1485                                         duck->signal_user_click(2)();
1486                                 else
1487                                         canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MULTIPLE_DUCKS_CLICKED,BUTTON_RIGHT,mouse_pos,pressure,modifier));
1488                                 return true;
1489                         }
1490                         else if(bezier)
1491                         {
1492                                 bezier->signal_user_click(2)(bezier_click_pos);
1493                                 return true;
1494                         }
1495                         else if (layer)
1496                         {
1497                                 if(canvas_view->get_smach().process_event(EventLayerClick(layer,BUTTON_RIGHT,mouse_pos))==Smach::RESULT_OK)
1498                                         return false;
1499                                 return true;
1500                         }
1501                         else
1502                                 canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,BUTTON_RIGHT,mouse_pos,pressure,modifier));
1503                         /*
1504                         if(canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,BUTTON_RIGHT,mouse_pos,pressure,modifier))==Smach::RESULT_OK)
1505                         {
1506                                 //popup_menu();
1507                                 return true;
1508                         }
1509                         */
1510                         break;
1511                 }
1512                 case 4:
1513                         signal_user_click(3)(mouse_pos);
1514                         break;
1515                 case 5:
1516                         signal_user_click(4)(mouse_pos);
1517                         break;
1518                 default:
1519                         break;
1520                 }
1521                 }
1522                 break;
1523         case GDK_MOTION_NOTIFY:
1524                 curr_point=mouse_pos;
1525
1526                 if(event->motion.time-last_event_time<25)
1527                         return true;
1528                 else
1529                         last_event_time=event->motion.time;
1530
1531                 signal_cursor_moved_();
1532
1533                 // Guide/Duck highlights on hover
1534                 if(dragging==DRAG_NONE)
1535                 {
1536                         GuideList::iterator iter;
1537
1538                         iter=find_guide_x(mouse_pos,radius);
1539                         if(iter==get_guide_list_x().end())
1540                                 iter=find_guide_y(mouse_pos,radius);
1541
1542                         if(iter!=curr_guide)
1543                         {
1544                                 curr_guide=iter;
1545                                 drawing_area->queue_draw();
1546                         }
1547
1548                         etl::handle<Duck> duck;
1549                         duck=find_duck(mouse_pos,radius);
1550                         if(duck!=hover_duck)
1551                         {
1552                                 hover_duck=duck;
1553                                 drawing_area->queue_draw();
1554                         }
1555                 }
1556
1557
1558                 if(dragging==DRAG_DUCK)
1559                 {
1560                         if(canvas_view->get_cancel_status())
1561                         {
1562                                 dragging=DRAG_NONE;
1563                                 canvas_view->queue_rebuild_ducks();
1564                                 return true;
1565                         }
1566                         /*
1567                         Point point((mouse_pos-selected_duck->get_origin())/selected_duck->get_scalar());
1568                         if(get_grid_snap())
1569                         {
1570                                 point[0]=floor(point[0]/grid_size[0]+0.5)*grid_size[0];
1571                                 point[1]=floor(point[1]/grid_size[1]+0.5)*grid_size[1];
1572                         }
1573                         selected_duck->set_point(point);
1574                         */
1575
1576                         //Point p(mouse_pos);
1577
1578                         set_axis_lock(event->motion.state&GDK_SHIFT_MASK);
1579
1580                         translate_selected_ducks(mouse_pos);
1581
1582                         drawing_area->queue_draw();
1583                 }
1584
1585                 if(dragging==DRAG_BOX)
1586                 {
1587                         curr_point=mouse_pos;
1588                         drawing_area->queue_draw();
1589                 }
1590
1591                 if(dragging==DRAG_GUIDE)
1592                 {
1593                         if(curr_guide_is_x)
1594                                 *curr_guide=mouse_pos[0];
1595                         else
1596                                 *curr_guide=mouse_pos[1];
1597                         drawing_area->queue_draw();
1598                 }
1599
1600                 if(dragging!=DRAG_WINDOW)
1601                 {       // Update those triangle things on the rulers
1602                         const synfig::Point point(mouse_pos);
1603                         hruler->property_position()=Distance(point[0],Distance::SYSTEM_UNITS).get(App::distance_system,get_canvas()->rend_desc());
1604                         vruler->property_position()=Distance(point[1],Distance::SYSTEM_UNITS).get(App::distance_system,get_canvas()->rend_desc());
1605                 }
1606
1607                 if(dragging == DRAG_WINDOW)
1608                         set_focus_point(get_focus_point() + mouse_pos-drag_point);
1609                 else if (event->motion.state & GDK_BUTTON1_MASK &&
1610                                 canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MOUSE_BUTTON_DRAG, BUTTON_LEFT,
1611                                                                                                                                   mouse_pos,pressure,modifier)) == Smach::RESULT_ACCEPT)
1612                         return true;
1613                 else if (event->motion.state & GDK_BUTTON2_MASK &&
1614                                  canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MOUSE_BUTTON_DRAG, BUTTON_MIDDLE,
1615                                                                                                                                    mouse_pos, pressure, modifier)) == Smach::RESULT_ACCEPT)
1616                         return true;
1617                 else if (event->motion.state & GDK_BUTTON3_MASK &&
1618                                  canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MOUSE_BUTTON_DRAG, BUTTON_RIGHT,
1619                                                                                                                                    mouse_pos, pressure, modifier)) == Smach::RESULT_ACCEPT)
1620                         return true;
1621                 else if(canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MOUSE_MOTION, BUTTON_NONE,
1622                                                                                                                                   mouse_pos, pressure,modifier)) == Smach::RESULT_ACCEPT)
1623                         return true;
1624
1625                 break;
1626
1627         case GDK_BUTTON_RELEASE:
1628         {
1629                 bool ret(false);
1630
1631                 if(dragging==DRAG_GUIDE)
1632                 {
1633                         dragging=DRAG_NONE;
1634                         save_meta_data();
1635                         return true;
1636                 }
1637                 else
1638                 if(dragging==DRAG_DUCK)
1639                 {
1640                         synfigapp::Action::PassiveGrouper grouper(instance.get(),_("Move"));
1641                         dragging=DRAG_NONE;
1642                         //translate_selected_ducks(mouse_pos);
1643                         set_axis_lock(false);
1644
1645                         try{
1646                         get_canvas_view()->duck_refresh_flag=false;
1647                         get_canvas_view()->duck_refresh_needed=false;
1648                         const bool drag_did_anything(end_duck_drag());
1649                         get_canvas_view()->duck_refresh_flag=true;
1650                         if(!drag_did_anything)
1651                         {
1652                                 // if we originally clicked on a selected duck ...
1653                                 if(clicked_duck)
1654                                 {
1655                                         // ... and CTRL is pressed, then just toggle the clicked duck
1656                                         //     otherwise make the clicked duck the only selected duck
1657                                         if(modifier&GDK_CONTROL_MASK)
1658                                                 unselect_duck(clicked_duck);
1659                                         else
1660                                         {
1661                                                 clear_selected_ducks();
1662                                                 select_duck(clicked_duck);
1663                                         }
1664                                         clicked_duck->signal_user_click(0)();
1665                                 }
1666                         }
1667                         else
1668                         {
1669                                 if(canvas_view->duck_refresh_needed)
1670                                         canvas_view->queue_rebuild_ducks();
1671                                 return true;
1672                         }
1673                         }catch(String)
1674                         {
1675                                 canvas_view->duck_refresh_flag=true;
1676                                 canvas_view->queue_rebuild_ducks();
1677                                 return true;
1678                         }
1679                         //queue_draw();
1680                         clicked_duck=0;
1681
1682                         ret=true;
1683                 }
1684
1685                 if(dragging==DRAG_BOX)
1686                 {
1687                         dragging=DRAG_NONE;
1688                         if((drag_point-mouse_pos).mag()>radius/2.0f)
1689                         {
1690                                 if(canvas_view->get_smach().process_event(EventBox(drag_point,mouse_pos,MouseButton(event->button.button),modifier))==Smach::RESULT_ACCEPT)
1691                                         return true;
1692
1693                                 // when dragging a box around some ducks:
1694                                 // SHIFT selects; CTRL toggles; SHIFT+CTRL unselects; <none> clears all then selects
1695                                 if(modifier&GDK_SHIFT_MASK)
1696                                         select_ducks_in_box(drag_point,mouse_pos);
1697
1698                                 if(modifier&GDK_CONTROL_MASK)
1699                                         toggle_select_ducks_in_box(drag_point,mouse_pos);
1700                                 else if(!(modifier&GDK_SHIFT_MASK))
1701                                 {
1702                                         clear_selected_ducks();
1703                                         select_ducks_in_box(drag_point,mouse_pos);
1704                                 }
1705                                 ret=true;
1706                         }
1707                         else
1708                         {
1709                                 if(allow_layer_clicks)
1710                                 {
1711                                         Layer::Handle layer(get_canvas()->find_layer(drag_point));
1712                                         //if(layer)
1713                                         {
1714                                                 if(canvas_view->get_smach().process_event(EventLayerClick(layer,BUTTON_LEFT,mouse_pos,modifier))==Smach::RESULT_OK)
1715                                                         signal_layer_selected_(layer);
1716                                                 ret=true;
1717                                         }
1718                                 }
1719                                 else
1720                                 {
1721                                         signal_user_click(0)(mouse_pos);
1722                                 }
1723                         }
1724                 }
1725
1726                 dragging=DRAG_NONE;
1727
1728                 if(canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MOUSE_BUTTON_UP,MouseButton(event->button.button),mouse_pos,pressure,modifier))==Smach::RESULT_ACCEPT)
1729                         ret=true;
1730
1731                 return ret;
1732         }
1733                 break;
1734         case GDK_SCROLL:
1735         {
1736                 // Handle a mouse scrolling event like Xara Xtreme and
1737                 // Inkscape:
1738
1739                 // Scroll up/down: scroll up/down
1740                 // Shift + scroll up/down: scroll left/right
1741                 // Control + scroll up/down: zoom in/out
1742
1743                 if(modifier&GDK_CONTROL_MASK)
1744                 {
1745
1746                         // The zoom is performed while preserving the pointer
1747                         // position as a fixed point (similarly to Xara Xtreme and
1748                         // Inkscape).
1749
1750                         // The strategy used below is to scroll to the updated
1751                         // position, then zoom. This is easy to implement within
1752                         // the present architecture, but has the disadvantage of
1753                         // triggering multiple visible refreshes. Note: 1.25 is
1754                         // the hard wired ratio in zoom_in()/zoom_out(). The
1755                         // variable "drift" compensates additional inaccuracies in
1756                         // the zoom. There is also an additional minus sign for
1757                         // the inverted y coordinates.
1758
1759                         // FIXME: One might want to figure out where in the code
1760                         // this empirical drift is been introduced.
1761
1762                         const synfig::Point scroll_point(get_scrollx_adjustment()->get_value(),get_scrolly_adjustment()->get_value());
1763                         const double drift = 0.052;
1764
1765                         switch(event->scroll.direction)
1766                         {
1767                                 case GDK_SCROLL_UP:
1768                                 case GDK_SCROLL_RIGHT:
1769                                         get_scrollx_adjustment()->set_value(scroll_point[0]+(mouse_pos[0]-scroll_point[0])*(1.25-(1+drift)));
1770                                         get_scrolly_adjustment()->set_value(scroll_point[1]-(mouse_pos[1]+scroll_point[1])*(1.25-(1+drift)));
1771                                         zoom_in();
1772                                         break;
1773                                 case GDK_SCROLL_DOWN:
1774                                 case GDK_SCROLL_LEFT:
1775                                         get_scrollx_adjustment()->set_value(scroll_point[0]+(mouse_pos[0]-scroll_point[0])*(1/1.25-(1+drift)));
1776                                         get_scrolly_adjustment()->set_value(scroll_point[1]-(mouse_pos[1]+scroll_point[1])*(1/1.25-(1+drift)));
1777                                         zoom_out();
1778                                         break;
1779                                 default:
1780                                         break;
1781                         }
1782                 }
1783                 else if(modifier&GDK_SHIFT_MASK)
1784                 {
1785                         // Scroll in either direction by 20 pixels. Ideally, the
1786                         // amount of pixels per scrolling event should be
1787                         // configurable. Xara Xtreme currently uses an (hard
1788                         // wired) amount 20 pixel, Inkscape defaults to 40 pixels.
1789
1790                         const int scroll_pixel = 20;
1791
1792                         switch(event->scroll.direction)
1793                         {
1794                                 case GDK_SCROLL_UP:
1795                                         get_scrollx_adjustment()->set_value(get_scrollx_adjustment()->get_value()-scroll_pixel*pw);
1796                                         break;
1797                                 case GDK_SCROLL_DOWN:
1798                                         get_scrollx_adjustment()->set_value(get_scrollx_adjustment()->get_value()+scroll_pixel*pw);
1799                                         break;
1800                                 case GDK_SCROLL_LEFT:
1801                                         get_scrolly_adjustment()->set_value(get_scrolly_adjustment()->get_value()+scroll_pixel*ph);
1802                                         break;
1803                                 case GDK_SCROLL_RIGHT:
1804                                         get_scrolly_adjustment()->set_value(get_scrolly_adjustment()->get_value()-scroll_pixel*ph);
1805                                         break;
1806                                 default:
1807                                         break;
1808                         }
1809                 }
1810                 else
1811                 {
1812                         // Scroll in either direction by 20 pixels. Ideally, the
1813                         // amount of pixels per scrolling event should be
1814                         // configurable. Xara Xtreme currently uses an (hard
1815                         // wired) amount 20 pixel, Inkscape defaults to 40 pixels.
1816
1817                         const int scroll_pixel = 20;
1818
1819                         switch(event->scroll.direction)
1820                         {
1821                                 case GDK_SCROLL_UP:
1822                                         get_scrolly_adjustment()->set_value(get_scrolly_adjustment()->get_value()+scroll_pixel*ph);
1823                                         break;
1824                                 case GDK_SCROLL_DOWN:
1825                                         get_scrolly_adjustment()->set_value(get_scrolly_adjustment()->get_value()-scroll_pixel*ph);
1826                                         break;
1827                                 case GDK_SCROLL_LEFT:
1828                                         get_scrollx_adjustment()->set_value(get_scrollx_adjustment()->get_value()-scroll_pixel*pw);
1829                                         break;
1830                                 case GDK_SCROLL_RIGHT:
1831                                         get_scrollx_adjustment()->set_value(get_scrollx_adjustment()->get_value()+scroll_pixel*pw);
1832                                         break;
1833                                 default:
1834                                         break;
1835                         }
1836                 }
1837         }
1838                 break;
1839         default:
1840                 break;
1841         }
1842                 return false;
1843 }
1844
1845 bool
1846 WorkArea::on_hruler_event(GdkEvent */*event*/)
1847 {
1848 /*
1849         switch(event->type)
1850     {
1851         case GDK_BUTTON_PRESS:
1852                 if(dragging==DRAG_NONE)
1853                 {
1854                         dragging=DRAG_GUIDE;
1855                         curr_guide=get_guide_list_y().insert(get_guide_list_y().begin());
1856                         curr_guide_is_x=false;
1857                 }
1858                 return true;
1859                 break;
1860
1861         case GDK_MOTION_NOTIFY:
1862                 // Guide movement
1863                 if(dragging==DRAG_GUIDE && curr_guide_is_x==false)
1864                 {
1865                         double y,x;
1866                         if(event->button.axes)
1867                         {
1868                                 x=(event->button.axes[0]);
1869                                 y=(event->button.axes[1]);
1870                         }
1871                         else
1872                         {
1873                                 x=event->button.x;
1874                                 y=event->button.y;
1875                         }
1876
1877                         if(isnan(y) || isnan(x))
1878                                 return false;
1879
1880                         *curr_guide=synfig::Point(screen_to_comp_coords(synfig::Point(x,y)))[1];
1881
1882                         queue_draw();
1883                 }
1884                 return true;
1885                 break;
1886
1887         case GDK_BUTTON_RELEASE:
1888                 if(dragging==DRAG_GUIDE && curr_guide_is_x==false)
1889                 {
1890                         dragging=DRAG_NONE;
1891                         get_guide_list_y().erase(curr_guide);
1892                 }
1893                 break;
1894                 return true;
1895         default:
1896                 break;
1897         }
1898 */
1899         return false;
1900 }
1901
1902 bool
1903 WorkArea::on_vruler_event(GdkEvent */*event*/)
1904 {
1905 /*
1906         switch(event->type)
1907     {
1908         case GDK_BUTTON_PRESS:
1909                 if(dragging==DRAG_NONE)
1910                 {
1911                         dragging=DRAG_GUIDE;
1912                         curr_guide=get_guide_list_x().insert(get_guide_list_x().begin());
1913                         curr_guide_is_x=true;
1914                 }
1915                 return true;
1916                 break;
1917         case GDK_BUTTON_RELEASE:
1918                 if(dragging==DRAG_GUIDE && curr_guide_is_x==true)
1919                 {
1920                         dragging=DRAG_NONE;
1921                         get_guide_list_x().erase(curr_guide);
1922                 }
1923                 break;
1924                 return true;
1925         default:
1926                 break;
1927         }
1928 */
1929         return false;
1930 }
1931
1932
1933 void
1934 WorkArea::refresh_dimension_info()
1935 {
1936         synfig::RendDesc &rend_desc(get_canvas()->rend_desc());
1937
1938         canvaswidth=rend_desc.get_br()[0]-rend_desc.get_tl()[0];
1939         canvasheight=rend_desc.get_br()[1]-rend_desc.get_tl()[1];
1940
1941         pw=canvaswidth/w;
1942         ph=canvasheight/h;
1943
1944         scrollx_adjustment.set_page_increment(abs(get_grid_size()[0]));
1945         scrollx_adjustment.set_step_increment(abs(pw));
1946         scrollx_adjustment.set_lower(-abs(canvaswidth));
1947         scrollx_adjustment.set_upper(abs(canvaswidth));
1948         scrolly_adjustment.set_lower(-abs(canvasheight));
1949         scrolly_adjustment.set_upper(abs(canvasheight));
1950         scrolly_adjustment.set_step_increment(abs(ph));
1951         scrolly_adjustment.set_page_increment(abs(get_grid_size()[1]));
1952
1953
1954
1955         if(drawing_area->get_width()<=0 || drawing_area->get_height()<=0 || w==0 || h==0)
1956                 return;
1957
1958         const synfig::Point focus_point(get_focus_point());
1959         const synfig::Real x(focus_point[0]/pw+drawing_area->get_width()/2-w/2);
1960         const synfig::Real y(focus_point[1]/ph+drawing_area->get_height()/2-h/2);
1961
1962         window_tl[0]=rend_desc.get_tl()[0]-pw*x;
1963         window_br[0]=rend_desc.get_br()[0]+pw*(drawing_area->get_width()-x-w);
1964
1965         window_tl[1]=rend_desc.get_tl()[1]-ph*y;
1966         window_br[1]=rend_desc.get_br()[1]+ph*(drawing_area->get_height()-y-h);
1967
1968         hruler->property_lower()=Distance(window_tl[0],Distance::SYSTEM_UNITS).get(App::distance_system,rend_desc);
1969         hruler->property_upper()=Distance(window_br[0],Distance::SYSTEM_UNITS).get(App::distance_system,rend_desc);
1970         vruler->property_lower()=Distance(window_tl[1],Distance::SYSTEM_UNITS).get(App::distance_system,rend_desc);
1971         vruler->property_upper()=Distance(window_br[1],Distance::SYSTEM_UNITS).get(App::distance_system,rend_desc);
1972
1973         view_window_changed();
1974 }
1975
1976
1977 synfig::Point
1978 WorkArea::screen_to_comp_coords(synfig::Point pos)const
1979 {
1980         synfig::RendDesc &rend_desc(get_canvas()->rend_desc());
1981         //synfig::Vector::value_type canvaswidth=rend_desc.get_br()[0]-rend_desc.get_tl()[0];
1982         //synfig::Vector::value_type canvasheight=rend_desc.get_br()[1]-rend_desc.get_tl()[1];
1983         //synfig::Vector::value_type pw=canvaswidth/w;
1984         //synfig::Vector::value_type ph=canvasheight/h;
1985         Vector focus_point=get_focus_point();
1986         synfig::Vector::value_type x=focus_point[0]/pw+drawing_area->get_width()/2-w/2;
1987         synfig::Vector::value_type y=focus_point[1]/ph+drawing_area->get_height()/2-h/2;
1988
1989         return rend_desc.get_tl()-synfig::Point(pw*x,ph*y)+synfig::Point(pw*pos[0],ph*pos[1]);
1990 }
1991
1992 synfig::Point
1993 WorkArea::comp_to_screen_coords(synfig::Point /*pos*/)const
1994 {
1995         synfig::warning("WorkArea::comp_to_screen_coords: Not yet implemented");
1996         return synfig::Point();
1997 }
1998
1999 int
2000 WorkArea::next_unrendered_tile(int refreshes)const
2001 {
2002         //assert(!tile_book.empty());
2003         if(tile_book.empty())
2004                 return -1;
2005
2006         //const synfig::RendDesc &rend_desc(get_canvas()->rend_desc());
2007
2008         const synfig::Vector focus_point(get_focus_point());
2009
2010         // Calculate the window coordinates of the top-left
2011         // corner of the canvas.
2012         const synfig::Vector::value_type
2013                 x(focus_point[0]/pw+drawing_area->get_width()/2-w/2),
2014                 y(focus_point[1]/ph+drawing_area->get_height()/2-h/2);
2015
2016         int div = low_res_pixel_size;
2017         const int width_in_tiles(w/tile_w+((low_resolution?((w/div)%(tile_w/div)):(w%tile_w))?1:0));
2018         const int height_in_tiles(h/tile_h+(h%tile_h?1:0));
2019
2020         int
2021                 u(0),v(0),
2022                 u1(int(-x/tile_w)),
2023                 v1(int(-y/tile_h)),
2024                 u2(int((-x+drawing_area->get_width())/tile_w+1)),
2025                 v2(int((-y+drawing_area->get_height())/tile_h+1));
2026
2027         if(u2>width_in_tiles)u2=width_in_tiles;
2028         if(v2>height_in_tiles)v2=height_in_tiles;
2029         if(u1<0)u1=0;
2030         if(v1<0)v1=0;
2031
2032         int last_good_tile(-1);
2033
2034         for(v=v1;v<v2;v++)
2035                 for(u=u1;u<u2;u++)
2036                 {
2037                         int index(v*width_in_tiles+u);
2038                         if(tile_book[index].second<refreshes)
2039                         {
2040                                 last_good_tile=index;
2041                                 if(rand()%8==0)
2042                                         return index;
2043                         }
2044                 }
2045         return last_good_tile;
2046 }
2047
2048 /*
2049 template <typename F, typename T=WorkAreaRenderer, typename R=typename F::result_type>
2050 class handle2ptr_t : public std::unary_function<typename etl::handle<T>,R>
2051 {
2052 private:
2053         F func;
2054 public:
2055         handle2ptr_t(const F &func):func(func) { };
2056
2057         R operator()(typename etl::handle<T> x) { return func(*x); }
2058 };
2059
2060 template <typename F>
2061 handle2ptr_t<F>
2062 handle2ptr(F func)
2063 {
2064         return handle2ptr_t<F>(func);
2065 }
2066         for_each(
2067                 renderer_set_.begin(),
2068                 renderer_set_.end(),
2069                 handle2ptr(
2070                         sigc::bind(
2071                                 sigc::bind(
2072                                         sigc::mem_fun(
2073                                                 &WorkAreaRenderer::render_vfunc
2074                                         ),
2075                                         Gdk::Rectangle(event->area)
2076                                 ),
2077                                 drawing_area->get_window()
2078                         )
2079                 )
2080         );
2081 */
2082
2083 bool
2084 WorkArea::refresh(GdkEventExpose*event)
2085 {
2086         assert(get_canvas());
2087
2088         drawing_area->get_window()->clear();
2089
2090         //const synfig::RendDesc &rend_desc(get_canvas()->rend_desc());
2091
2092         const synfig::Vector focus_point(get_focus_point());
2093
2094         // Update the old focus point
2095         last_focus_point=focus_point;
2096
2097         // Draw out the renderables
2098         {
2099                 std::set<etl::handle<WorkAreaRenderer> >::iterator iter;
2100                 for(iter=renderer_set_.begin();iter!=renderer_set_.end();++iter)
2101                 {
2102                         if((*iter)->get_enabled())
2103                                 (*iter)->render_vfunc(
2104                                         drawing_area->get_window(),
2105                                         Gdk::Rectangle(&event->area)
2106                                 );
2107                 }
2108         }
2109
2110         // Calculate the window coordinates of the top-left
2111         // corner of the canvas.
2112         //const synfig::Vector::value_type
2113         //      x(focus_point[0]/pw+drawing_area->get_width()/2-w/2),
2114         //      y(focus_point[1]/ph+drawing_area->get_height()/2-h/2);
2115
2116         //const synfig::Vector::value_type window_startx(window_tl[0]);
2117         //const synfig::Vector::value_type window_endx(window_br[0]);
2118         //const synfig::Vector::value_type window_starty(window_tl[1]);
2119         //const synfig::Vector::value_type window_endy(window_br[1]);
2120
2121         Glib::RefPtr<Gdk::GC> gc=Gdk::GC::create(drawing_area->get_window());
2122
2123         // If we are in animate mode, draw a red border around the screen
2124         if(canvas_interface->get_mode()&synfigapp::MODE_ANIMATE)
2125         {
2126 // #define USE_FRAME_BACKGROUND_TO_SHOW_EDIT_MODE
2127 #ifdef USE_FRAME_BACKGROUND_TO_SHOW_EDIT_MODE
2128                 // This method of drawing the red border doesn't work on any
2129                 // Gtk theme which uses the crux-engine, hcengine, industrial,
2130                 // mist, or ubuntulooks engine, such as the default ubuntu
2131                 // 'Human' theme.
2132                 drawing_frame->modify_bg(Gtk::STATE_NORMAL,Gdk::Color("#FF0000"));
2133 #else
2134                 // So let's do it in a more primitive fashion.
2135                 gc->set_rgb_fg_color(Gdk::Color("#FF0000"));
2136                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
2137                 drawing_area->get_window()->draw_rectangle(
2138                         gc,
2139                         false,  // Fill?
2140                         0,0,    // x,y
2141                         drawing_area->get_width()-1,drawing_area->get_height()-1); // w,h
2142 #endif
2143         }
2144 #ifdef USE_FRAME_BACKGROUND_TO_SHOW_EDIT_MODE
2145         else
2146                 drawing_frame->unset_bg(Gtk::STATE_NORMAL);
2147 #endif
2148
2149         return true;
2150 }
2151
2152 void
2153 WorkArea::done_rendering()
2154 {
2155 /*
2156         assert(buffer);
2157         assert(w>0);
2158         assert(h>0);
2159         pix_buf=Gdk::Pixbuf::create_from_data(
2160                 buffer, // pointer to the data
2161                 Gdk::COLORSPACE_RGB, // the colorspace
2162                 true, // has alpha?
2163                 8, // bits per sample
2164                 w,      // width
2165                 h,      // height
2166                 w*bpp); // stride (pitch)
2167         assert(pix_buf);
2168 */
2169 }
2170
2171
2172 void
2173 WorkArea::set_quality(int x)
2174 {
2175         if(x==quality)
2176                 return;
2177         quality=x;
2178         queue_render_preview();
2179 }
2180
2181 void
2182 WorkArea::set_low_res_pixel_size(int x)
2183 {
2184         if(x==low_res_pixel_size)
2185                 return;
2186         low_res_pixel_size=x;
2187         queue_render_preview();
2188 }
2189
2190 namespace studio
2191 {
2192 class WorkAreaProgress : public synfig::ProgressCallback
2193 {
2194         WorkArea *work_area;
2195         ProgressCallback *cb;
2196
2197 public:
2198
2199         WorkAreaProgress(WorkArea *work_area,ProgressCallback *cb):
2200                 work_area(work_area),cb(cb)
2201         {
2202                 assert(cb);
2203         }
2204
2205         virtual bool
2206         task(const std::string &str)
2207         {
2208                 if(work_area->dirty)
2209                         return false;
2210                 return cb->task(str);
2211         }
2212
2213         virtual bool
2214         error(const std::string &err)
2215         {
2216                 if(work_area->dirty)
2217                         return false;
2218                 return cb->error(err);
2219         }
2220
2221         virtual bool
2222         amount_complete(int current, int total)
2223         {
2224                 if(work_area->dirty)
2225                         return false;
2226                 return cb->amount_complete(current,total);
2227         }
2228 };
2229 }
2230
2231 bool
2232 studio::WorkArea::async_update_preview()
2233 {
2234 #ifdef SINGLE_THREADED
2235         if (get_updating())
2236         {
2237                 stop_updating();
2238                 queue_render_preview();
2239                 return false;
2240         }
2241 #endif
2242
2243         async_renderer=0;
2244
2245         queued=false;
2246         canceled_=false;
2247         get_canvas_view()->reset_cancel_status();
2248
2249         // This object will mark us as busy until
2250         // we are done.
2251         //studio::App::Busy busy;
2252
2253         //WorkAreaProgress callback(this,get_canvas_view()->get_ui_interface().get());
2254         //synfig::ProgressCallback *cb=&callback;
2255
2256         if(!is_visible())return false;
2257
2258         /*
2259         // If we are queued to render the scene at the next idle
2260         // go ahead and de-queue it.
2261         if(render_idle_func_id)
2262         {
2263                 g_source_remove(render_idle_func_id);
2264                 //queued=false;
2265                 render_idle_func_id=0;
2266         }
2267         */
2268
2269         dirty=false;
2270         get_canvas_view()->reset_cancel_status();
2271
2272         //bool ret=false;
2273         RendDesc desc=get_canvas()->rend_desc();
2274
2275         int w=(int)(desc.get_w()*zoom);
2276         int h=(int)(desc.get_h()*zoom);
2277
2278         // ensure that the size we draw is at least one pixel in each dimension
2279         int min_size = low_resolution ? low_res_pixel_size : 1;
2280         if (w < min_size) w = min_size;
2281         if (h < min_size) h = min_size;
2282
2283         // Setup the description parameters
2284         desc.set_antialias(1);
2285         desc.set_time(cur_time);
2286
2287         set_rend_desc(desc);
2288
2289         // Create the render target
2290         handle<Target> target;
2291
2292         // if we have lots of pixels to render and the tile renderer isn't disabled, use it
2293         int div;
2294         div = low_resolution ? low_res_pixel_size : 1;
2295         if ((w*h > 240*div*135*div && !getenv("SYNFIG_DISABLE_TILE_RENDER")) || getenv("SYNFIG_FORCE_TILE_RENDER"))
2296         {
2297                 // do a tile render
2298                 handle<WorkAreaTarget> trgt(new class WorkAreaTarget(this,w,h));
2299
2300                 trgt->set_rend_desc(&desc);
2301                 trgt->set_onion_skin(get_onion_skin(), onion_skins);
2302                 target=trgt;
2303         }
2304         else
2305         {
2306                 // do a scanline render
2307                 handle<WorkAreaTarget_Full> trgt(new class WorkAreaTarget_Full(this,w,h));
2308
2309                 trgt->set_rend_desc(&desc);
2310                 trgt->set_onion_skin(get_onion_skin(), onion_skins);
2311                 target=trgt;
2312         }
2313
2314         // We can rest assured that our time has already
2315         // been set, so there is no need to have to
2316         // recalculate that over again.
2317         // UPDATE: This is kind of needless with
2318         // the way that time is handled now in SYNFIG.
2319         //target->set_avoid_time_sync(true);
2320         async_renderer=new AsyncRenderer(target);
2321         async_renderer->signal_finished().connect(
2322                 sigc::mem_fun(this,&WorkArea::async_update_finished)
2323         );
2324
2325         rendering=true;
2326         async_renderer->start();
2327
2328         synfig::ProgressCallback *cb=get_canvas_view()->get_ui_interface().get();
2329
2330         rendering=true;
2331         cb->task(_("Rendering..."));
2332         rendering=true;
2333
2334         return true;
2335 }
2336
2337 void
2338 studio::WorkArea::async_update_finished()
2339 {
2340         synfig::ProgressCallback *cb=get_canvas_view()->get_ui_interface().get();
2341
2342         rendering=false;
2343
2344         if(!async_renderer)
2345                 return;
2346
2347         // If we completed successfully, then
2348         // we aren't dirty anymore
2349         if(async_renderer->has_success())
2350         {
2351                 dirty=false;
2352                 //queued=false;
2353                 cb->task(_("Idle"));
2354         }
2355         else
2356         {
2357                 dirty=true;
2358                 cb->task(_("Render Failed"));
2359         }
2360         //get_canvas_view()->reset_cancel_status();
2361         done_rendering();
2362 }
2363
2364 bool
2365 studio::WorkArea::sync_update_preview()
2366 {
2367         //      const Time &time(cur_time);
2368
2369         canceled_=false;
2370         get_canvas_view()->reset_cancel_status();
2371
2372         async_renderer=0;
2373
2374 again:
2375         // This object will mark us as busy until
2376         // we are done.
2377         studio::App::Busy busy;
2378
2379         WorkAreaProgress callback(this,get_canvas_view()->get_ui_interface().get());
2380         synfig::ProgressCallback *cb=&callback;
2381
2382         // We don't want to render if we are already rendering
2383         if(rendering)
2384         {
2385                 dirty=true;
2386                 return false;
2387         }
2388
2389         if(!is_visible())return false;
2390         get_canvas()->set_time(get_time());
2391         get_canvas_view()->get_smach().process_event(EVENT_REFRESH_DUCKS);
2392         signal_rendering()();
2393
2394         // If we are queued to render the scene at the next idle
2395         // go ahead and de-queue it.
2396         if(render_idle_func_id)
2397         {
2398                 g_source_remove(render_idle_func_id);
2399                 //queued=false;
2400                 render_idle_func_id=0;
2401         }
2402         // Start rendering
2403         rendering=true;
2404
2405         dirty=false;
2406         get_canvas_view()->reset_cancel_status();
2407
2408         RendDesc desc=get_canvas()->rend_desc();
2409         //newdesc->set_flags(RendDesc::PX_ASPECT|RendDesc::IM_SPAN);
2410
2411         int w=(int)(desc.get_w()*zoom);
2412         int h=(int)(desc.get_h()*zoom);
2413
2414         // Setup the description parameters
2415         desc.set_antialias(1);
2416         desc.set_time(cur_time);
2417         //desc.set_wh(w,h);
2418
2419         set_rend_desc(desc);
2420
2421         // Create the render target
2422         handle<WorkAreaTarget> target(new class WorkAreaTarget(this,w,h));
2423
2424         target->set_rend_desc(&desc);
2425
2426         // We can rest assured that our time has already
2427         // been set, so there is no need to have to
2428         // recalculate that over again.
2429         target->set_avoid_time_sync(true);
2430
2431         if(cb)
2432                 cb->task(strprintf(_("Rendering canvas %s..."),get_canvas()->get_name().c_str()));
2433
2434         bool ret = target->render(cb);
2435
2436         if(!ret && !get_canvas_view()->get_cancel_status() && dirty)
2437         {
2438                 rendering=false;
2439                 //canceled_=true;
2440                 goto again;
2441         }
2442         if(get_canvas_view()->get_cancel_status())
2443                 canceled_=true;
2444
2445         if(cb)
2446         {
2447                 if(ret)
2448                         cb->task(_("Idle"));
2449                 else
2450                         cb->task(_("Render Failed"));
2451                 cb->amount_complete(0,1);
2452         }
2453
2454         // Refresh the work area to make sure that
2455         // it is being displayed correctly
2456         drawing_area->queue_draw();
2457
2458         // If we completed successfully, then
2459         // we aren't dirty anymore
2460         if(ret)
2461         {
2462                 dirty=false;
2463                 //queued=false;
2464         }
2465         else dirty=true;
2466         rendering=false;
2467         //get_canvas_view()->reset_cancel_status();
2468         done_rendering();
2469         return ret;
2470 }
2471
2472 void
2473 studio::WorkArea::async_render_preview(synfig::Time time)
2474 {
2475         cur_time=time;
2476         //tile_book.clear();
2477
2478         refreshes+=5;
2479         if(!is_visible())return;
2480
2481         get_canvas()->set_time(get_time());
2482         get_canvas_view()->get_smach().process_event(EVENT_REFRESH_DUCKS);
2483         signal_rendering()();
2484
2485         async_update_preview();
2486 }
2487 void
2488 WorkArea::async_render_preview()
2489 {
2490         return async_render_preview(get_canvas_view()->get_time());
2491 }
2492
2493 bool
2494 studio::WorkArea::sync_render_preview(synfig::Time time)
2495 {
2496         cur_time=time;
2497         //tile_book.clear();
2498         refreshes+=5;
2499         if(!is_visible())return false;
2500         return sync_update_preview();
2501 }
2502
2503 bool
2504 WorkArea::sync_render_preview()
2505 {
2506         return sync_render_preview(get_canvas_view()->get_time());
2507 }
2508
2509 void
2510 WorkArea::sync_render_preview_hook()
2511 {
2512         sync_render_preview(get_canvas_view()->get_time());
2513 }
2514
2515 void
2516 WorkArea::queue_scroll()
2517 {
2518 //      const synfig::RendDesc &rend_desc(get_canvas()->rend_desc());
2519
2520         const synfig::Point focus_point(get_focus_point());
2521
2522         const synfig::Real
2523                 new_x(focus_point[0]/pw+drawing_area->get_width()/2-w/2),
2524                 new_y(focus_point[1]/ph+drawing_area->get_height()/2-h/2);
2525
2526         const synfig::Real
2527                 old_x(last_focus_point[0]/pw+drawing_area->get_width()/2-w/2),
2528                 old_y(last_focus_point[1]/ph+drawing_area->get_height()/2-h/2);
2529
2530         // If the coordinates didn't change, we shouldn't queue a draw
2531         if(old_x==new_x && old_y==new_y)
2532                 return;
2533
2534         const int
2535                 dx(round_to_int(old_x)-round_to_int(new_x)),
2536                 dy(round_to_int(old_y)-round_to_int(new_y));
2537
2538         drawing_area->get_window()->scroll(-dx,-dy);
2539
2540         if (timecode_width && timecode_height)
2541         {
2542                 drawing_area->queue_draw_area(4,       4,    4+timecode_width,    4+timecode_height);
2543                 drawing_area->queue_draw_area(4-dx, 4-dy, 4-dx+timecode_width, 4-dy+timecode_height);
2544         }
2545
2546 #ifndef USE_FRAME_BACKGROUND_TO_SHOW_EDIT_MODE
2547         if(canvas_interface->get_mode()&synfigapp::MODE_ANIMATE)
2548         {
2549                 int maxx = drawing_area->get_width()-1;
2550                 int maxy = drawing_area->get_height()-1;
2551
2552                 if (dx > 0)
2553                 {
2554                         drawing_area->queue_draw_area(      0, 0,       1, maxy);
2555                         drawing_area->queue_draw_area(maxx-dx, 0, maxx-dx, maxy);
2556                 }
2557                 else if (dx < 0)
2558                 {
2559                         drawing_area->queue_draw_area(   maxx, 0,    maxx, maxy);
2560                         drawing_area->queue_draw_area(    -dx, 0,     -dx, maxy);
2561                 }
2562                 if (dy > 0)
2563                 {
2564                         drawing_area->queue_draw_area(0,       0, maxx,       1);
2565                         drawing_area->queue_draw_area(0, maxy-dy, maxx, maxy-dy);
2566                 }
2567                 else if (dy < 0)
2568                 {
2569                         drawing_area->queue_draw_area(0,    maxy, maxx,    maxy);
2570                         drawing_area->queue_draw_area(0,     -dy, maxx,     -dy);
2571                 }
2572         }
2573 #endif // USE_FRAME_BACKGROUND_TO_SHOW_EDIT_MODE
2574
2575         last_focus_point=focus_point;
2576 }
2577
2578 void
2579 studio::WorkArea::zoom_in()
2580 {
2581         set_zoom(zoom*1.25);
2582 }
2583
2584 void
2585 studio::WorkArea::zoom_out()
2586 {
2587         set_zoom(zoom/1.25);
2588 }
2589
2590 void
2591 studio::WorkArea::zoom_fit()
2592 {
2593         float new_zoom(min(drawing_area->get_width() * zoom / w,
2594                                            drawing_area->get_height() * zoom / h) * 0.995);
2595         if (zoom / new_zoom > 0.995 && new_zoom / zoom > 0.995)
2596         {
2597                 set_zoom(prev_zoom);
2598                 return set_focus_point(previous_focus);
2599         }
2600         previous_focus = get_focus_point();
2601         prev_zoom = zoom;
2602         set_zoom(new_zoom);
2603         set_focus_point(Point(0,0));
2604 }
2605
2606 void
2607 studio::WorkArea::zoom_norm()
2608 {
2609         if (zoom == 1.0) return set_zoom(prev_zoom);
2610         prev_zoom = zoom;
2611         set_zoom(1.0f);
2612 }
2613
2614 gboolean
2615 studio::WorkArea::__render_preview(gpointer data)
2616 {
2617         WorkArea *work_area(static_cast<WorkArea*>(data));
2618
2619         // there's no point anyone trying to cancel the timer now - it's gone off already
2620         work_area->render_idle_func_id = 0;
2621
2622         work_area->queued=false;
2623         work_area->async_render_preview(work_area->get_canvas_view()->get_time());
2624
2625         return 0;
2626 }
2627
2628 void
2629 studio::WorkArea::queue_render_preview()
2630 {
2631         //synfig::info("queue_render_preview(): called for %s", get_canvas_view()->get_time().get_string().c_str());
2632
2633         if(queued==true)
2634         {
2635                 return;
2636                 //synfig::info("queue_render_preview(): already queued, unqueuing");
2637 /*              if(render_idle_func_id)
2638                         g_source_remove(render_idle_func_id);
2639                 render_idle_func_id=0;
2640                 queued=false;
2641 */
2642                 //async_renderer=0;
2643         }
2644
2645         if(dirty_trap_enabled)
2646         {
2647                 dirty_trap_queued++;
2648                 return;
2649         }
2650
2651         int queue_time=50;
2652
2653         if(rendering)
2654                 queue_time+=250;
2655
2656
2657         if(queued==false)
2658         {
2659                 //synfig::info("queue_render_preview(): (re)queuing...");
2660                 //render_idle_func_id=g_idle_add_full(G_PRIORITY_DEFAULT,__render_preview,this,NULL);
2661                 render_idle_func_id=g_timeout_add_full(
2662                         G_PRIORITY_DEFAULT,     // priority -
2663                         queue_time,                     // interval - the time between calls to the function, in milliseconds (1/1000ths of a second)
2664                         __render_preview,       // function - function to call
2665                         this,                           // data     - data to pass to function
2666                         NULL);                          // notify   - function to call when the idle is removed, or NULL
2667                 queued=true;
2668         }
2669 /*      else if(rendering)
2670         {
2671                 refreshes+=5;
2672                 dirty=true;
2673                 queue_draw();
2674         }
2675 */
2676 }
2677
2678 DirtyTrap::DirtyTrap(WorkArea *work_area):work_area(work_area)
2679 {
2680         work_area->dirty_trap_enabled=true;
2681
2682         work_area->dirty_trap_queued=0;
2683 }
2684
2685 DirtyTrap::~DirtyTrap()
2686 {
2687         work_area->dirty_trap_enabled=false;
2688         if(work_area->dirty_trap_queued)
2689                 work_area->queue_render_preview();
2690 }
2691
2692 void
2693 studio::WorkArea::queue_draw_preview()
2694 {
2695         drawing_area->queue_draw();
2696 }
2697
2698 void
2699 studio::WorkArea::set_cursor(const Gdk::Cursor& x)
2700 {
2701         drawing_area->get_window()->set_cursor(x);
2702 }
2703 void
2704 studio::WorkArea::set_cursor(Gdk::CursorType x)
2705 {
2706         drawing_area->get_window()->set_cursor(Gdk::Cursor(x));
2707 }
2708
2709 #include "iconcontroller.h"
2710
2711 void
2712 studio::WorkArea::refresh_cursor()
2713 {
2714 //      set_cursor(IconController::get_tool_cursor(canvas_view->get_smach().get_state_name(),drawing_area->get_window()));
2715 }
2716
2717 void
2718 studio::WorkArea::reset_cursor()
2719 {
2720         drawing_area->get_window()->set_cursor(Gdk::Cursor(Gdk::TOP_LEFT_ARROW));
2721 //      set_cursor(Gdk::TOP_LEFT_ARROW);
2722 }
2723
2724 void
2725 studio::WorkArea::set_zoom(float z)
2726 {
2727         z=max(1.0f/128.0f,min(128.0f,z));
2728         if(z==zoom)
2729                 return;
2730         zoom = z;
2731         refresh_dimension_info();
2732         /*if(async_renderer)
2733         {
2734                 async_renderer->stop();
2735                 async_renderer=0;
2736         }*/
2737         refreshes+=5;
2738         async_update_preview();
2739         //queue_render_preview();
2740 }
2741
2742 void
2743 WorkArea::set_selected_value_node(etl::loose_handle<synfig::ValueNode> x)
2744 {
2745         if(x!=selected_value_node_)
2746         {
2747                 selected_value_node_=x;
2748                 queue_draw();
2749         }
2750 }
2751
2752 void
2753 WorkArea::insert_renderer(const etl::handle<WorkAreaRenderer> &x)
2754 {
2755         renderer_set_.insert(x);
2756         x->set_work_area(this);
2757         queue_draw();
2758 }
2759
2760 void
2761 WorkArea::insert_renderer(const etl::handle<WorkAreaRenderer> &x, int priority)
2762 {
2763         x->set_priority(priority);
2764         insert_renderer(x);
2765 }
2766
2767 void
2768 WorkArea::erase_renderer(const etl::handle<WorkAreaRenderer> &x)
2769 {
2770         x->set_work_area(0);
2771         renderer_set_.erase(x);
2772         queue_draw();
2773 }
2774
2775 void
2776 WorkArea::resort_render_set()
2777 {
2778         std::set<etl::handle<WorkAreaRenderer> > tmp(
2779                 renderer_set_.begin(),
2780                 renderer_set_.end()
2781         );
2782         renderer_set_.swap(tmp);
2783         queue_draw();
2784 }