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