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