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