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_SEPERATOR+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                                         clicked_duck=0;
1292                                         if(duck_is_selected(duck))
1293                                         {
1294                                                 clicked_duck=duck;
1295                                         }
1296                                         else
1297                                         {
1298                                                 if(modifier&GDK_SHIFT_MASK)
1299                                                 {
1300                                                         select_duck(duck);
1301                                                 }
1302                                                 else if(modifier&GDK_CONTROL_MASK)
1303                                                 {
1304                                                         select_duck(duck);
1305                                                 }
1306                                                 else
1307                                                 {
1308                                                         clear_selected_ducks();
1309                                                         select_duck(duck);
1310                                                 }
1311                                         }
1312                                 }
1313                         }
1314                         //else
1315                         //      clear_selected_ducks();
1316
1317
1318
1319                         selected_bezier=find_bezier(mouse_pos,radius,&bezier_click_pos);
1320                         if(duck && duck->get_editable())
1321                         {
1322                                 //get_selected_duck()->signal_user_click(0)();
1323                                 //if(clicked_duck)clicked_duck->signal_user_click(0)();
1324
1325                                 // if the user is holding shift while clicking on a tangent duck, consider splitting the tangent
1326                                 if (event->motion.state&GDK_SHIFT_MASK && duck->get_type() == Duck::TYPE_TANGENT)
1327                                 {
1328                                         synfigapp::ValueDesc value_desc = duck->get_value_desc();
1329
1330                                         // we have the tangent, but need the vertex - that's the parent
1331                                         if (value_desc.parent_is_value_node()) {
1332                                                 ValueNode_Composite::Handle parent_value_node = value_desc.get_parent_value_node();
1333
1334                                                 // if the tangent isn't split, then split it
1335                                                 if (!((*(parent_value_node->get_link("split")))(get_time()).get(bool())))
1336                                                 {
1337                                                         get_canvas_view()->canvas_interface()->
1338                                                                 change_value(synfigapp::ValueDesc(parent_value_node,
1339                                                                                                                                   parent_value_node->get_link_index_from_name("split")),
1340                                                                                          true);
1341                                                         // rebuild the ducks from scratch, so the tangents ducks aren't connected
1342                                                         get_canvas_view()->rebuild_ducks();
1343
1344                                                         // reprocess the mouse click
1345                                                         return on_drawing_area_event(event);
1346                                                 }
1347                                         } else {
1348                                                 // I don't know how to access the vertex from the tangent duck when originally drawing the bline in the bline tool
1349
1350                                                 // synfig::ValueNode::Handle vn = value_desc.get_value_node();
1351                                                 synfig::info("parent isn't value node?  shift-drag-tangent doesn't work in bline tool yet...");
1352                                         }
1353                                 }
1354
1355                                 dragging=DRAG_DUCK;
1356                                 drag_point=mouse_pos;
1357                                 //drawing_area->queue_draw();
1358                                 start_duck_drag(mouse_pos);
1359                                 get_canvas_view()->reset_cancel_status();
1360                                 return true;
1361                         }
1362 // I commented out this section because
1363 // it was causing issues when rotoscoping.
1364 // At the moment, we don't need it, so
1365 // this was the easiest way to fix the problem.
1366 /*
1367                         else
1368                         if(selected_bezier)
1369                         {
1370                                 selected_duck=0;
1371                                 selected_bezier->signal_user_click(0)(bezier_click_pos);
1372                         }
1373 */
1374                         else
1375                         {
1376                                 //clear_selected_ducks();
1377                                 selected_bezier=0;
1378                                 if(canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,BUTTON_LEFT,mouse_pos,pressure,modifier))==Smach::RESULT_OK)
1379                                 {
1380                                         // Check for a guide click
1381                                         GuideList::iterator iter;
1382
1383                                         iter=find_guide_x(mouse_pos,radius);
1384                                         if(iter==get_guide_list_x().end())
1385                                         {
1386                                                 curr_guide_is_x=false;
1387                                                 iter=find_guide_y(mouse_pos,radius);
1388                                         }
1389                                         else
1390                                                 curr_guide_is_x=true;
1391                                         if(iter!=get_guide_list_x().end() && iter!=get_guide_list_y().end())
1392                                         {
1393                                                 dragging=DRAG_GUIDE;
1394                                                 curr_guide=iter;
1395                                                 return true;
1396                                         }
1397
1398
1399                                         // All else fails, try making a selection box
1400                                         dragging=DRAG_BOX;
1401                                         curr_point=drag_point=mouse_pos;
1402                                         return true;
1403                                 }
1404                         }
1405                         break;
1406                 }
1407                 case 2: // Attempt to drag and move the window
1408                 {
1409                         etl::handle<Duck> duck=find_duck(mouse_pos,radius);
1410                         etl::handle<Bezier> bezier=find_bezier(mouse_pos,radius,&bezier_click_pos);
1411                         if(duck)
1412                                 duck->signal_user_click(1)();
1413                         else
1414                         if(bezier)
1415                                 bezier->signal_user_click(1)(bezier_click_pos);
1416
1417                         if(canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,BUTTON_MIDDLE,mouse_pos,pressure,modifier))==Smach::RESULT_OK)
1418                         if(is_mouse)
1419                         {
1420                                 dragging=DRAG_WINDOW;
1421                                 drag_point=mouse_pos;
1422                                 signal_user_click(1)(mouse_pos);
1423                         }
1424                         break;
1425                 }
1426                 case 3: // Attempt to either get info on a duck, or open the menu
1427                 {
1428                         etl::handle<Duck> duck=find_duck(mouse_pos,radius);
1429                         etl::handle<Bezier> bezier=find_bezier(mouse_pos,radius,&bezier_click_pos);
1430
1431                         Layer::Handle layer(get_canvas()->find_layer(mouse_pos));
1432                         if(duck)
1433                         {
1434                                 if(get_selected_ducks().size()<=1)
1435                                         duck->signal_user_click(2)();
1436                                 else
1437                                 {
1438                                         canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MULTIPLE_DUCKS_CLICKED,BUTTON_RIGHT,mouse_pos,pressure,modifier));
1439                                 }
1440                                 return true;
1441                         }
1442                         else
1443                         if(bezier)
1444                         {
1445                                 bezier->signal_user_click(2)(bezier_click_pos);
1446                                 return true;
1447                         }
1448                         else
1449                         if(layer)
1450                         {
1451                                 if(canvas_view->get_smach().process_event(EventLayerClick(layer,BUTTON_RIGHT,mouse_pos))==Smach::RESULT_OK)
1452                                         return false;
1453                                 return true;
1454                         }
1455                         else
1456                                 canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,BUTTON_RIGHT,mouse_pos,pressure,modifier));
1457                         /*
1458                         if(canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,BUTTON_RIGHT,mouse_pos,pressure,modifier))==Smach::RESULT_OK)
1459                         {
1460                                 //popup_menu();
1461                                 return true;
1462                         }
1463                         */
1464                         break;
1465                 }
1466                 case 4:
1467                         signal_user_click(3)(mouse_pos);
1468                         break;
1469                 case 5:
1470                         signal_user_click(4)(mouse_pos);
1471                         break;
1472                 default:
1473                         break;
1474                 }
1475                 }
1476                 break;
1477         case GDK_MOTION_NOTIFY:
1478                 curr_point=mouse_pos;
1479
1480                 if(event->motion.time-last_event_time<25)
1481                         return true;
1482                 else
1483                         last_event_time=event->motion.time;
1484
1485                 signal_cursor_moved_();
1486
1487                 // Guide/Duck hilights on hover
1488                 if(dragging==DRAG_NONE)
1489                 {
1490                         GuideList::iterator iter;
1491
1492                         iter=find_guide_x(mouse_pos,radius);
1493                         if(iter==get_guide_list_x().end())
1494                                 iter=find_guide_y(mouse_pos,radius);
1495
1496                         if(iter!=curr_guide)
1497                         {
1498                                 curr_guide=iter;
1499                                 drawing_area->queue_draw();
1500                         }
1501
1502                         etl::handle<Duck> duck;
1503                         duck=find_duck(mouse_pos,radius);
1504                         if(duck!=hover_duck)
1505                         {
1506                                 hover_duck=duck;
1507                                 drawing_area->queue_draw();
1508                         }
1509                 }
1510
1511
1512                 if(dragging==DRAG_DUCK)
1513                 {
1514                         if(canvas_view->get_cancel_status())
1515                         {
1516                                 dragging=DRAG_NONE;
1517                                 canvas_view->queue_rebuild_ducks();
1518                                 return true;
1519                         }
1520                         /*
1521                         Point point((mouse_pos-selected_duck->get_origin())/selected_duck->get_scalar());
1522                         if(get_grid_snap())
1523                         {
1524                                 point[0]=floor(point[0]/grid_size[0]+0.5)*grid_size[0];
1525                                 point[1]=floor(point[1]/grid_size[1]+0.5)*grid_size[1];
1526                         }
1527                         selected_duck->set_point(point);
1528                         */
1529
1530                         //Point p(mouse_pos);
1531
1532                         set_axis_lock(event->motion.state&GDK_SHIFT_MASK);
1533
1534                         translate_selected_ducks(mouse_pos);
1535
1536                         drawing_area->queue_draw();
1537                 }
1538                 if(dragging==DRAG_BOX)
1539                 {
1540                         curr_point=mouse_pos;
1541                         drawing_area->queue_draw();
1542                 }
1543                 if(dragging==DRAG_GUIDE)
1544                 {
1545                         if(curr_guide_is_x)
1546                                 *curr_guide=mouse_pos[0];
1547                         else
1548                                 *curr_guide=mouse_pos[1];
1549                         drawing_area->queue_draw();
1550                 }
1551                 if(dragging!=DRAG_WINDOW)
1552                 {       // Update those triangle things on the rulers
1553                         const synfig::Point point(mouse_pos);
1554                         hruler->property_position()=Distance(point[0],Distance::SYSTEM_UNITS).get(App::distance_system,get_canvas()->rend_desc());
1555                         vruler->property_position()=Distance(point[1],Distance::SYSTEM_UNITS).get(App::distance_system,get_canvas()->rend_desc());
1556                 }
1557                 if(dragging==DRAG_WINDOW)
1558                 {
1559                         set_focus_point(get_focus_point()+mouse_pos-drag_point);
1560                 }
1561                 else
1562                 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)
1563                         return true;
1564                 else
1565                 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)
1566                         return true;
1567                 else
1568                 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)
1569                         return true;
1570                 else
1571                 if(canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MOUSE_MOTION,BUTTON_NONE,mouse_pos,pressure,modifier))==Smach::RESULT_ACCEPT)
1572                         return true;
1573
1574                 break;
1575         case GDK_BUTTON_RELEASE:
1576         {
1577                 bool ret(false);
1578
1579                 if(dragging==DRAG_GUIDE)
1580                 {
1581                         dragging=DRAG_NONE;
1582                         save_meta_data();
1583                         return true;
1584                 }
1585                 else
1586                 if(dragging==DRAG_DUCK)
1587                 {
1588                         synfigapp::Action::PassiveGrouper grouper(instance.get(),"Move");
1589                         dragging=DRAG_NONE;
1590                         //translate_selected_ducks(mouse_pos);
1591                         set_axis_lock(false);
1592
1593                         try{
1594                         get_canvas_view()->duck_refresh_flag=false;
1595                         get_canvas_view()->duck_refresh_needed=false;
1596                         const bool drag_did_anything(end_duck_drag());
1597                         get_canvas_view()->duck_refresh_flag=true;
1598                         if(!drag_did_anything)
1599                         {
1600                                 //etl::handle<Duck> duck=find_duck(mouse_pos,radius);
1601
1602                                 if(modifier&GDK_SHIFT_MASK)
1603                                 {
1604                                         //synfig::info("DUCK_DRAG_RELEASE: SHIFT-MASK ON!");
1605                                         if(clicked_duck)
1606                                         {
1607                                                 //synfig::info("DUCK_DRAG_RELEASE: CLICKED DUCK!");
1608                                                 unselect_duck(clicked_duck);
1609                                         }
1610                                 }
1611                                 else if(modifier&GDK_CONTROL_MASK)
1612                                 {
1613                                         //synfig::info("DUCK_DRAG_RELEASE: CONTROL-MASK ON!");
1614                                         if(clicked_duck)
1615                                         {
1616                                                 //synfig::info("DUCK_DRAG_RELEASE: CLICKED DUCK!");
1617                                                 unselect_duck(clicked_duck);
1618                                         }
1619                                 }
1620                                 else
1621                                 {
1622                                         //synfig::info("DUCK_DRAG_RELEASE: NO MASK!");
1623                                         if(clicked_duck)
1624                                         {
1625                                                 //synfig::info("DUCK_DRAG_RELEASE: CLICKED DUCK!");
1626                                                 clear_selected_ducks();
1627                                                 select_duck(clicked_duck);
1628                                         }
1629                                 }
1630                                 if(clicked_duck)clicked_duck->signal_user_click(0)();
1631                         }
1632                         else
1633                         {
1634                                 if(canvas_view->duck_refresh_needed)
1635                                         canvas_view->queue_rebuild_ducks();
1636                                 return true;
1637                         }
1638                         }catch(String)
1639                         {
1640                                 canvas_view->duck_refresh_flag=true;
1641                                 canvas_view->queue_rebuild_ducks();
1642                                 return true;
1643                         }
1644                         //queue_draw();
1645                         clicked_duck=0;
1646
1647                         ret=true;
1648                 }
1649
1650                 if(dragging==DRAG_BOX)
1651                 {
1652                         dragging=DRAG_NONE;
1653                         if((drag_point-mouse_pos).mag()>radius/2.0f)
1654                         {
1655                                 if(canvas_view->get_smach().process_event(EventBox(drag_point,mouse_pos,MouseButton(event->button.button),modifier))==Smach::RESULT_ACCEPT)
1656                                         return true;
1657
1658                                 if(!(modifier&GDK_CONTROL_MASK) && !(modifier&GDK_SHIFT_MASK))
1659                                         clear_selected_ducks();
1660                                 select_ducks_in_box(drag_point,mouse_pos);
1661                                 ret=true;
1662                         }
1663                         else
1664                         {
1665                                 if(allow_layer_clicks)
1666                                 {
1667                                         Layer::Handle layer(get_canvas()->find_layer(drag_point));
1668                                         //if(layer)
1669                                         {
1670                                                 if(canvas_view->get_smach().process_event(EventLayerClick(layer,BUTTON_LEFT,mouse_pos,modifier))==Smach::RESULT_OK)
1671                                                         signal_layer_selected_(layer);
1672                                                 ret=true;
1673                                         }
1674                                 }
1675                                 else
1676                                 {
1677                                         signal_user_click(0)(mouse_pos);
1678                                 }
1679                         }
1680                 }
1681
1682                 dragging=DRAG_NONE;
1683
1684                 if(canvas_view->get_smach().process_event(EventMouse(EVENT_WORKAREA_MOUSE_BUTTON_UP,MouseButton(event->button.button),mouse_pos,pressure,modifier))==Smach::RESULT_ACCEPT)
1685                         ret=true;
1686
1687                 return ret;
1688         }
1689                 break;
1690         case GDK_SCROLL:
1691         {
1692                 // Handle a mouse scrolling event like Xara Xtreme and
1693                 // Inkscape:
1694
1695                 // Scroll up/down: scroll up/down
1696                 // Shift + scroll up/down: scroll left/right
1697                 // Control + scroll up/down: zoom in/out
1698
1699                 if(modifier&GDK_CONTROL_MASK)
1700                 {
1701
1702                         // The zoom is performed while preserving the pointer
1703                         // position as a fixed point (similarly to Xara Xtreme and
1704                         // Inkscape).
1705
1706                         // The strategy used below is to scroll to the updated
1707                         // position, then zoom. This is easy to implement within
1708                         // the present architecture, but has the disadvantage of
1709                         // triggering multiple visible refreshes. Note: 1.25 is
1710                         // the hard wired ratio in zoom_in()/zoom_out(). The
1711                         // variable "drift" compensates additional inaccuracies in
1712                         // the zoom. There is also an additional minus sign for
1713                         // the inverted y coordinates.
1714
1715                         // FIXME: One might want to figure out where in the code
1716                         // this empirical drift is been introduced.
1717
1718                         const synfig::Point scroll_point(get_scrollx_adjustment()->get_value(),get_scrolly_adjustment()->get_value());
1719                         const double drift = 0.052;
1720
1721                         switch(event->scroll.direction)
1722                         {
1723                                 case GDK_SCROLL_UP:
1724                                 case GDK_SCROLL_RIGHT:
1725                                         get_scrollx_adjustment()->set_value(scroll_point[0]+(mouse_pos[0]-scroll_point[0])*(1.25-(1+drift)));
1726                                         get_scrolly_adjustment()->set_value(scroll_point[1]-(mouse_pos[1]+scroll_point[1])*(1.25-(1+drift)));
1727                                         zoom_in();
1728                                         break;
1729                                 case GDK_SCROLL_DOWN:
1730                                 case GDK_SCROLL_LEFT:
1731                                         get_scrollx_adjustment()->set_value(scroll_point[0]+(mouse_pos[0]-scroll_point[0])*(1/1.25-(1+drift)));
1732                                         get_scrolly_adjustment()->set_value(scroll_point[1]-(mouse_pos[1]+scroll_point[1])*(1/1.25-(1+drift)));
1733                                         zoom_out();
1734                                         break;
1735                                 default:
1736                                         break;
1737                         }
1738                 }
1739                 else if(modifier&GDK_SHIFT_MASK)
1740                 {
1741                         // Scroll in either direction by 20 pixels. Ideally, the
1742                         // amount of pixels per scrolling event should be
1743                         // configurable. Xara Xtreme currently uses an (hard
1744                         // wired) amount 20 pixel, Inkscape defaults to 40 pixels.
1745
1746                         const int scroll_pixel = 20;
1747
1748                         switch(event->scroll.direction)
1749                         {
1750                                 case GDK_SCROLL_UP:
1751                                         get_scrollx_adjustment()->set_value(get_scrollx_adjustment()->get_value()-scroll_pixel*pw);
1752                                         break;
1753                                 case GDK_SCROLL_DOWN:
1754                                         get_scrollx_adjustment()->set_value(get_scrollx_adjustment()->get_value()+scroll_pixel*pw);
1755                                         break;
1756                                 case GDK_SCROLL_LEFT:
1757                                         get_scrolly_adjustment()->set_value(get_scrolly_adjustment()->get_value()+scroll_pixel*ph);
1758                                         break;
1759                                 case GDK_SCROLL_RIGHT:
1760                                         get_scrolly_adjustment()->set_value(get_scrolly_adjustment()->get_value()-scroll_pixel*ph);
1761                                         break;
1762                                 default:
1763                                         break;
1764                         }
1765                 }
1766                 else
1767                 {
1768                         // Scroll in either direction by 20 pixels. Ideally, the
1769                         // amount of pixels per scrolling event should be
1770                         // configurable. Xara Xtreme currently uses an (hard
1771                         // wired) amount 20 pixel, Inkscape defaults to 40 pixels.
1772
1773                         const int scroll_pixel = 20;
1774
1775                         switch(event->scroll.direction)
1776                         {
1777                                 case GDK_SCROLL_UP:
1778                                         get_scrolly_adjustment()->set_value(get_scrolly_adjustment()->get_value()+scroll_pixel*ph);
1779                                         break;
1780                                 case GDK_SCROLL_DOWN:
1781                                         get_scrolly_adjustment()->set_value(get_scrolly_adjustment()->get_value()-scroll_pixel*ph);
1782                                         break;
1783                                 case GDK_SCROLL_LEFT:
1784                                         get_scrollx_adjustment()->set_value(get_scrollx_adjustment()->get_value()-scroll_pixel*pw);
1785                                         break;
1786                                 case GDK_SCROLL_RIGHT:
1787                                         get_scrollx_adjustment()->set_value(get_scrollx_adjustment()->get_value()+scroll_pixel*pw);
1788                                         break;
1789                                 default:
1790                                         break;
1791                         }
1792                 }
1793         }
1794                 break;
1795         default:
1796                 break;
1797         }
1798                 return false;
1799 }
1800
1801 bool
1802 WorkArea::on_hruler_event(GdkEvent *event)
1803 {
1804 /*
1805         switch(event->type)
1806     {
1807         case GDK_BUTTON_PRESS:
1808                 if(dragging==DRAG_NONE)
1809                 {
1810                         dragging=DRAG_GUIDE;
1811                         curr_guide=get_guide_list_y().insert(get_guide_list_y().begin());
1812                         curr_guide_is_x=false;
1813                 }
1814                 return true;
1815                 break;
1816
1817         case GDK_MOTION_NOTIFY:
1818                 // Guide movement
1819                 if(dragging==DRAG_GUIDE && curr_guide_is_x==false)
1820                 {
1821                         double y,x;
1822                         if(event->button.axes)
1823                         {
1824                                 x=(event->button.axes[0]);
1825                                 y=(event->button.axes[1]);
1826                         }
1827                         else
1828                         {
1829                                 x=event->button.x;
1830                                 y=event->button.y;
1831                         }
1832
1833                         if(isnan(y) || isnan(x))
1834                                 return false;
1835
1836                         *curr_guide=synfig::Point(screen_to_comp_coords(synfig::Point(x,y)))[1];
1837
1838                         queue_draw();
1839                 }
1840                 return true;
1841                 break;
1842
1843         case GDK_BUTTON_RELEASE:
1844                 if(dragging==DRAG_GUIDE && curr_guide_is_x==false)
1845                 {
1846                         dragging=DRAG_NONE;
1847                         get_guide_list_y().erase(curr_guide);
1848                 }
1849                 break;
1850                 return true;
1851         default:
1852                 break;
1853         }
1854 */
1855         return false;
1856 }
1857
1858 bool
1859 WorkArea::on_vruler_event(GdkEvent *event)
1860 {
1861 /*
1862         switch(event->type)
1863     {
1864         case GDK_BUTTON_PRESS:
1865                 DEBUGPOINT();
1866                 if(dragging==DRAG_NONE)
1867                 {
1868                         DEBUGPOINT();
1869                         dragging=DRAG_GUIDE;
1870                         curr_guide=get_guide_list_x().insert(get_guide_list_x().begin());
1871                         curr_guide_is_x=true;
1872                 }
1873                 return true;
1874                 break;
1875         case GDK_BUTTON_RELEASE:
1876                 DEBUGPOINT();
1877                 if(dragging==DRAG_GUIDE && curr_guide_is_x==true)
1878                 {
1879                         DEBUGPOINT();
1880                         dragging=DRAG_NONE;
1881                         get_guide_list_x().erase(curr_guide);
1882                 }
1883                 break;
1884                 return true;
1885         default:
1886                 break;
1887         }
1888 */
1889         return false;
1890 }
1891
1892
1893 void
1894 WorkArea::refresh_dimension_info()
1895 {
1896         synfig::RendDesc &rend_desc(get_canvas()->rend_desc());
1897
1898         canvaswidth=rend_desc.get_br()[0]-rend_desc.get_tl()[0];
1899         canvasheight=rend_desc.get_br()[1]-rend_desc.get_tl()[1];
1900
1901         pw=canvaswidth/w;
1902         ph=canvasheight/h;
1903
1904         scrollx_adjustment.set_page_increment(abs(get_grid_size()[0]));
1905         scrollx_adjustment.set_step_increment(abs(pw));
1906         scrollx_adjustment.set_lower(-abs(canvaswidth));
1907         scrollx_adjustment.set_upper(abs(canvaswidth));
1908         scrolly_adjustment.set_lower(-abs(canvasheight));
1909         scrolly_adjustment.set_upper(abs(canvasheight));
1910         scrolly_adjustment.set_step_increment(abs(ph));
1911         scrolly_adjustment.set_page_increment(abs(get_grid_size()[1]));
1912
1913
1914
1915         if(drawing_area->get_width()<=0 || drawing_area->get_height()<=0 || w==0 || h==0)
1916                 return;
1917
1918         const synfig::Point focus_point(get_focus_point());
1919         const synfig::Real x(focus_point[0]/pw+drawing_area->get_width()/2-w/2);
1920         const synfig::Real y(focus_point[1]/ph+drawing_area->get_height()/2-h/2);
1921
1922         window_tl[0]=rend_desc.get_tl()[0]-pw*x;
1923         window_br[0]=rend_desc.get_br()[0]+pw*(drawing_area->get_width()-x-w);
1924
1925         window_tl[1]=rend_desc.get_tl()[1]-ph*y;
1926         window_br[1]=rend_desc.get_br()[1]+ph*(drawing_area->get_height()-y-h);
1927
1928         hruler->property_lower()=Distance(window_tl[0],Distance::SYSTEM_UNITS).get(App::distance_system,rend_desc);
1929         hruler->property_upper()=Distance(window_br[0],Distance::SYSTEM_UNITS).get(App::distance_system,rend_desc);
1930         vruler->property_lower()=Distance(window_tl[1],Distance::SYSTEM_UNITS).get(App::distance_system,rend_desc);
1931         vruler->property_upper()=Distance(window_br[1],Distance::SYSTEM_UNITS).get(App::distance_system,rend_desc);
1932
1933         view_window_changed();
1934 }
1935
1936
1937 synfig::Point
1938 WorkArea::screen_to_comp_coords(synfig::Point pos)const
1939 {
1940         synfig::RendDesc &rend_desc(get_canvas()->rend_desc());
1941         //synfig::Vector::value_type canvaswidth=rend_desc.get_br()[0]-rend_desc.get_tl()[0];
1942         //synfig::Vector::value_type canvasheight=rend_desc.get_br()[1]-rend_desc.get_tl()[1];
1943         //synfig::Vector::value_type pw=canvaswidth/w;
1944         //synfig::Vector::value_type ph=canvasheight/h;
1945         Vector focus_point=get_focus_point();
1946         synfig::Vector::value_type x=focus_point[0]/pw+drawing_area->get_width()/2-w/2;
1947         synfig::Vector::value_type y=focus_point[1]/ph+drawing_area->get_height()/2-h/2;
1948
1949         return rend_desc.get_tl()-synfig::Point(pw*x,ph*y)+synfig::Point(pw*pos[0],ph*pos[1]);
1950 }
1951
1952 synfig::Point
1953 WorkArea::comp_to_screen_coords(synfig::Point pos)const
1954 {
1955         synfig::warning("WorkArea::comp_to_screen_coords: Not yet implemented");
1956         return synfig::Point();
1957 }
1958
1959 int
1960 WorkArea::next_unrendered_tile(int refreshes)const
1961 {
1962         //assert(!tile_book.empty());
1963         if(tile_book.empty())
1964                 return -1;
1965
1966         //const synfig::RendDesc &rend_desc(get_canvas()->rend_desc());
1967
1968         const synfig::Vector focus_point(get_focus_point());
1969
1970         // Calculate the window coordinates of the top-left
1971         // corner of the canvas.
1972         const synfig::Vector::value_type
1973                 x(focus_point[0]/pw+drawing_area->get_width()/2-w/2),
1974                 y(focus_point[1]/ph+drawing_area->get_height()/2-h/2);
1975
1976         const int width_in_tiles(w/tile_w+(w%tile_w?1:0));
1977         const int height_in_tiles(h/tile_h+(h%tile_h?1:0));
1978
1979         int
1980                 u(0),v(0),
1981                 u1(int(-x/tile_w)),
1982                 v1(int(-y/tile_h)),
1983                 u2(int((-x+drawing_area->get_width())/tile_w+1)),
1984                 v2(int((-y+drawing_area->get_height())/tile_h+1));
1985
1986         if(u2>width_in_tiles)u2=width_in_tiles;
1987         if(v2>height_in_tiles)v2=height_in_tiles;
1988         if(u1<0)u1=0;
1989         if(v1<0)v1=0;
1990
1991         int last_good_tile(-1);
1992
1993         for(v=v1;v<v2;v++)
1994                 for(u=u1;u<u2;u++)
1995                 {
1996                         int index(v*width_in_tiles+u);
1997                         if(tile_book[index].second<refreshes)
1998                         {
1999                                 last_good_tile=index;
2000                                 if(rand()%8==0)
2001                                         return index;
2002                         }
2003                 }
2004         return last_good_tile;
2005 }
2006
2007 /*
2008 template <typename F, typename T=WorkAreaRenderer, typename R=typename F::result_type>
2009 class handle2ptr_t : public std::unary_function<typename etl::handle<T>,R>
2010 {
2011 private:
2012         F func;
2013 public:
2014         handle2ptr_t(const F &func):func(func) { };
2015
2016         R operator()(typename etl::handle<T> x) { return func(*x); }
2017 };
2018
2019 template <typename F>
2020 handle2ptr_t<F>
2021 handle2ptr(F func)
2022 {
2023         return handle2ptr_t<F>(func);
2024 }
2025         for_each(
2026                 renderer_set_.begin(),
2027                 renderer_set_.end(),
2028                 handle2ptr(
2029                         sigc::bind(
2030                                 sigc::bind(
2031                                         sigc::mem_fun(
2032                                                 &WorkAreaRenderer::render_vfunc
2033                                         ),
2034                                         Gdk::Rectangle(event->area)
2035                                 ),
2036                                 drawing_area->get_window()
2037                         )
2038                 )
2039         );
2040 */
2041
2042 bool
2043 WorkArea::refresh(GdkEventExpose*event)
2044 {
2045         assert(get_canvas());
2046
2047         drawing_area->get_window()->clear();
2048
2049         //const synfig::RendDesc &rend_desc(get_canvas()->rend_desc());
2050
2051         const synfig::Vector focus_point(get_focus_point());
2052
2053         // Update the old focus point
2054         last_focus_point=focus_point;
2055
2056         // Draw out the renderables
2057         {
2058                 std::set<etl::handle<WorkAreaRenderer> >::iterator iter;
2059                 for(iter=renderer_set_.begin();iter!=renderer_set_.end();++iter)
2060                 {
2061                         if((*iter)->get_enabled())
2062                                 (*iter)->render_vfunc(
2063                                         drawing_area->get_window(),
2064                                         Gdk::Rectangle(&event->area)
2065                                 );
2066                 }
2067         }
2068
2069
2070         // Calculate the window coordinates of the top-left
2071         // corner of the canvas.
2072         //const synfig::Vector::value_type
2073         //      x(focus_point[0]/pw+drawing_area->get_width()/2-w/2),
2074         //      y(focus_point[1]/ph+drawing_area->get_height()/2-h/2);
2075
2076         //const synfig::Vector::value_type window_startx(window_tl[0]);
2077         //const synfig::Vector::value_type window_endx(window_br[0]);
2078         //const synfig::Vector::value_type window_starty(window_tl[1]);
2079         //const synfig::Vector::value_type window_endy(window_br[1]);
2080
2081         Glib::RefPtr<Gdk::GC> gc=Gdk::GC::create(drawing_area->get_window());
2082
2083
2084
2085         // If we are in animate mode, draw a red border around the screen
2086         if(canvas_interface->get_mode()&synfigapp::MODE_ANIMATE)
2087         {
2088                 /*gc->set_rgb_fg_color(Gdk::Color("#FF0000"));
2089                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
2090                 drawing_area->get_window()->draw_rectangle(
2091                         gc,
2092                         false,  // Fill?
2093                         0,0,    // x,y
2094                         drawing_area->get_width()-1,drawing_area->get_height()-1        //w,h
2095                 );
2096                 */
2097                 drawing_frame->modify_bg(Gtk::STATE_NORMAL,Gdk::Color("#FF0000"));
2098                 //get_window()->set_background(Gdk::Color("#FF0000"));
2099         }
2100         else
2101                 drawing_frame->unset_bg(Gtk::STATE_NORMAL);
2102
2103
2104
2105         previous_focus=get_focus_point();
2106
2107         return true;
2108 }
2109
2110 void
2111 WorkArea::done_rendering()
2112 {
2113 /*
2114         assert(buffer);
2115         assert(w>0);
2116         assert(h>0);
2117         pix_buf=Gdk::Pixbuf::create_from_data(
2118                 buffer, // pointer to the data
2119                 Gdk::COLORSPACE_RGB, // the colorspace
2120                 true, // has alpha?
2121                 8, // bits per sample
2122                 w,      // width
2123                 h,      // height
2124                 w*bpp); // stride (pitch)
2125         assert(pix_buf);
2126 */
2127 }
2128
2129
2130 void
2131 WorkArea::set_quality(int x)
2132 {
2133         if(x==quality)
2134                 return;
2135         quality=x;
2136         queue_render_preview();
2137 }
2138
2139
2140 class WorkAreaProgress : public synfig::ProgressCallback
2141 {
2142         WorkArea *work_area;
2143         ProgressCallback *cb;
2144
2145 public:
2146
2147         WorkAreaProgress(WorkArea *work_area,ProgressCallback *cb):
2148                 work_area(work_area),cb(cb)
2149         {
2150                 assert(cb);
2151         }
2152
2153         virtual bool
2154         task(const std::string &str)
2155         {
2156                 if(work_area->dirty)
2157                         return false;
2158                 return cb->task(str);
2159         }
2160
2161         virtual bool
2162         error(const std::string &err)
2163         {
2164                 if(work_area->dirty)
2165                         return false;
2166                 return cb->error(err);
2167         }
2168
2169         virtual bool
2170         amount_complete(int current, int total)
2171         {
2172                 if(work_area->dirty)
2173                         return false;
2174                 return cb->amount_complete(current,total);
2175         }
2176 };
2177
2178 bool
2179 studio::WorkArea::async_update_preview()
2180 {
2181         async_renderer=0;
2182
2183         queued=false;
2184         canceled_=false;
2185         get_canvas_view()->reset_cancel_status();
2186
2187         // This object will mark us as busy until
2188         // we are done.
2189         //studio::App::Busy busy;
2190
2191         //WorkAreaProgress callback(this,get_canvas_view()->get_ui_interface().get());
2192         //synfig::ProgressCallback *cb=&callback;
2193
2194         if(!is_visible())return false;
2195
2196         /*
2197         // If we are queued to render the scene at the next idle
2198         // go ahead and de-queue it.
2199         if(render_idle_func_id)
2200         {
2201                 g_source_remove(render_idle_func_id);
2202                 //queued=false;
2203                 render_idle_func_id=0;
2204         }
2205         */
2206
2207         dirty=false;
2208         get_canvas_view()->reset_cancel_status();
2209
2210         //bool ret=false;
2211         RendDesc desc=get_canvas()->rend_desc();
2212
2213         int w=(int)(desc.get_w()*zoom);
2214         int h=(int)(desc.get_h()*zoom);
2215
2216         // Setup the description parameters
2217         desc.set_antialias(1);
2218         desc.set_time(cur_time);
2219
2220         set_rend_desc(desc);
2221
2222         // Create the render target
2223         handle<Target> target;
2224
2225         if(w*h>(low_resolution?480*270:480*270/2))
2226         {
2227                 handle<WorkAreaTarget> trgt(new class WorkAreaTarget(this,w,h));
2228
2229                 trgt->set_rend_desc(&desc);
2230                 trgt->set_onion_skin(get_onion_skin());
2231                 target=trgt;
2232         }
2233         else
2234         {
2235                 handle<WorkAreaTarget_Full> trgt(new class WorkAreaTarget_Full(this,w,h));
2236
2237                 trgt->set_rend_desc(&desc);
2238                 trgt->set_onion_skin(get_onion_skin());
2239                 target=trgt;
2240         }
2241
2242         // We can rest assured that our time has already
2243         // been set, so there is no need to have to
2244         // recalculate that over again.
2245         // UPDATE: This is kind of needless with
2246         // the way that time is handled now in SYNFIG.
2247         //target->set_avoid_time_sync(true);
2248         async_renderer=new AsyncRenderer(target);
2249         async_renderer->signal_finished().connect(
2250                 sigc::mem_fun(this,&WorkArea::async_update_finished)
2251         );
2252
2253         rendering=true;
2254         async_renderer->start();
2255
2256         synfig::ProgressCallback *cb=get_canvas_view()->get_ui_interface().get();
2257
2258         rendering=true;
2259         cb->task("Rendering...");
2260         rendering=true;
2261
2262         return true;
2263 }
2264
2265 void
2266 studio::WorkArea::async_update_finished()
2267 {
2268         synfig::ProgressCallback *cb=get_canvas_view()->get_ui_interface().get();
2269
2270         rendering=false;
2271
2272         if(!async_renderer)
2273                 return;
2274
2275         // If we completed successfuly, then
2276         // we aren't dirty anymore
2277         if(async_renderer->has_success())
2278         {
2279                 dirty=false;
2280                 //queued=false;
2281                 cb->task("Idle");
2282         }
2283         else
2284         {
2285                 dirty=true;
2286                 cb->task("Render Failed");
2287         }
2288         //get_canvas_view()->reset_cancel_status();
2289         done_rendering();
2290 }
2291
2292 bool
2293 studio::WorkArea::sync_update_preview()
2294 {
2295         //      const Time &time(cur_time);
2296
2297         canceled_=false;
2298         get_canvas_view()->reset_cancel_status();
2299
2300         async_renderer=0;
2301
2302 again:
2303         // This object will mark us as busy until
2304         // we are done.
2305         studio::App::Busy busy;
2306
2307         WorkAreaProgress callback(this,get_canvas_view()->get_ui_interface().get());
2308         synfig::ProgressCallback *cb=&callback;
2309
2310         // We don't want to render if we are already rendering
2311         if(rendering)
2312         {
2313                 dirty=true;
2314                 return false;
2315         }
2316
2317         if(!is_visible())return false;
2318         get_canvas()->set_time(get_time());
2319         get_canvas_view()->get_smach().process_event(EVENT_REFRESH_DUCKS);
2320         signal_rendering()();
2321
2322         // If we are queued to render the scene at the next idle
2323         // go ahead and de-queue it.
2324         if(render_idle_func_id)
2325         {
2326                 g_source_remove(render_idle_func_id);
2327                 //queued=false;
2328                 render_idle_func_id=0;
2329         }
2330         // Start rendering
2331         rendering=true;
2332
2333         dirty=false;
2334         get_canvas_view()->reset_cancel_status();
2335
2336         bool ret=false;
2337         RendDesc desc=get_canvas()->rend_desc();
2338         //newdesc->set_flags(RendDesc::PX_ASPECT|RendDesc::IM_SPAN);
2339
2340         int w=(int)(desc.get_w()*zoom);
2341         int h=(int)(desc.get_h()*zoom);
2342
2343         // Setup the description parameters
2344         desc.set_antialias(1);
2345         desc.set_time(cur_time);
2346         //desc.set_wh(w,h);
2347
2348         set_rend_desc(desc);
2349
2350         // Create the render target
2351         handle<WorkAreaTarget> target(new class WorkAreaTarget(this,w,h));
2352
2353         target->set_rend_desc(&desc);
2354
2355         // We can rest assured that our time has already
2356         // been set, so there is no need to have to
2357         // recalculate that over again.
2358         target->set_avoid_time_sync(true);
2359
2360         if(cb)
2361                 cb->task(strprintf("Rendering canvas %s...",get_canvas()->get_name().c_str()));
2362
2363         target->render(cb);
2364
2365         if(!ret && !get_canvas_view()->get_cancel_status() && dirty)
2366         {
2367                 rendering=false;
2368                 //canceled_=true;
2369                 goto again;
2370         }
2371         if(get_canvas_view()->get_cancel_status())
2372                 canceled_=true;
2373
2374         if(cb)
2375         {
2376                 if(ret)
2377                         cb->task("Idle");
2378                 else
2379                         cb->task("Render Failed");
2380                 cb->amount_complete(0,1);
2381         }
2382
2383         // Refresh the work area to make sure that
2384         // it is being displayed correctly
2385         drawing_area->queue_draw();
2386
2387         // If we completed successfuly, then
2388         // we aren't dirty anymore
2389         if(ret)
2390         {
2391                 dirty=false;
2392                 //queued=false;
2393         }
2394         else dirty=true;
2395         rendering=false;
2396         //get_canvas_view()->reset_cancel_status();
2397         done_rendering();
2398         return ret;
2399 }
2400
2401 void
2402 studio::WorkArea::async_render_preview(Time time)
2403 {
2404         cur_time=time;
2405         //tile_book.clear();
2406
2407         refreshes+=5;
2408         if(!is_visible())return;
2409
2410         get_canvas()->set_time(get_time());
2411         get_canvas_view()->get_smach().process_event(EVENT_REFRESH_DUCKS);
2412         signal_rendering()();
2413
2414         async_update_preview();
2415 }
2416 void
2417 WorkArea::async_render_preview()
2418 {
2419         return async_render_preview(get_canvas_view()->get_time());
2420 }
2421
2422 bool
2423 studio::WorkArea::sync_render_preview(Time time)
2424 {
2425         cur_time=time;
2426         //tile_book.clear();
2427         refreshes+=5;
2428         if(!is_visible())return false;
2429         return sync_update_preview();
2430 }
2431
2432 bool
2433 WorkArea::sync_render_preview()
2434 {
2435         return sync_render_preview(get_canvas_view()->get_time());
2436 }
2437
2438 void
2439 WorkArea::sync_render_preview_hook()
2440 {
2441         sync_render_preview(get_canvas_view()->get_time());
2442 }
2443
2444 void
2445 WorkArea::queue_scroll()
2446 {
2447 //      const synfig::RendDesc &rend_desc(get_canvas()->rend_desc());
2448
2449         const synfig::Point focus_point(get_focus_point());
2450
2451         const synfig::Real
2452                 new_x(focus_point[0]/pw+drawing_area->get_width()/2-w/2),
2453                 new_y(focus_point[1]/ph+drawing_area->get_height()/2-h/2);
2454
2455         const synfig::Real
2456                 old_x(last_focus_point[0]/pw+drawing_area->get_width()/2-w/2),
2457                 old_y(last_focus_point[1]/ph+drawing_area->get_height()/2-h/2);
2458
2459         // If the coordinates didn't change, we shouldn't queue a draw
2460         if(old_x==new_x && old_y==new_y)
2461                 return;
2462
2463         const int
2464                 dx(round_to_int(old_x)-round_to_int(new_x)),
2465                 dy(round_to_int(old_y)-round_to_int(new_y));
2466
2467         drawing_area->get_window()->scroll(-dx,-dy);
2468
2469         /*drawing_area->queue_draw_area(
2470                 0,
2471                 0,
2472                 128,
2473                 64
2474         );
2475         */
2476         last_focus_point=focus_point;
2477 }
2478
2479 void
2480 studio::WorkArea::zoom_in()
2481 {
2482         set_zoom(zoom*1.25);
2483 }
2484
2485 void
2486 studio::WorkArea::zoom_out()
2487 {
2488         set_zoom(zoom/1.25);
2489 }
2490
2491 void
2492 studio::WorkArea::zoom_fit()
2493 {
2494         // This really doesn't zoom to fit. Bug.
2495         zoom_norm();
2496 }
2497
2498 void
2499 studio::WorkArea::zoom_norm()
2500 {
2501         if(zoom==1.0)
2502                 set_zoom(prev_zoom);
2503         else
2504         {
2505                 prev_zoom=zoom;
2506                 set_zoom(1.0f);
2507         }
2508 }
2509
2510 gboolean
2511 studio::WorkArea::__render_preview(gpointer data)
2512 {
2513
2514         WorkArea *work_area(static_cast<WorkArea*>(data));
2515
2516         work_area->queued=false;
2517         work_area->async_render_preview(work_area->get_canvas_view()->get_time());
2518
2519         return 0;
2520 }
2521
2522 void
2523 studio::WorkArea::queue_render_preview()
2524 {
2525         //synfig::info("queue_render_preview(): called for %s", get_canvas_view()->get_time().get_string().c_str());
2526
2527         if(queued==true)
2528         {
2529                 return;
2530                 //synfig::info("queue_render_preview(): already queued, unqueuing");
2531 /*              if(render_idle_func_id)
2532                         g_source_remove(render_idle_func_id);
2533                 render_idle_func_id=0;
2534                 queued=false;
2535 */
2536                 //async_renderer=0;
2537         }
2538
2539         if(dirty_trap_enabled)
2540         {
2541                 dirty_trap_queued++;
2542                 return;
2543         }
2544
2545         int queue_time=50;
2546
2547         if(rendering)
2548                 queue_time+=250;
2549
2550
2551         if(queued==false)
2552         {
2553                 //synfig::info("queue_render_preview(): (re)queuing...");
2554                 //render_idle_func_id=g_idle_add_full(G_PRIORITY_DEFAULT,__render_preview,this,NULL);
2555                 render_idle_func_id=g_timeout_add_full(G_PRIORITY_DEFAULT,queue_time,__render_preview,this,NULL);
2556                 queued=true;
2557         }
2558 /*      else if(rendering)
2559         {
2560                 refreshes+=5;
2561                 dirty=true;
2562                 queue_draw();
2563         }
2564 */
2565 }
2566
2567 DirtyTrap::DirtyTrap(WorkArea *work_area):work_area(work_area)
2568 {
2569         work_area->dirty_trap_enabled=true;
2570
2571         work_area->dirty_trap_queued=0;
2572 }
2573
2574 DirtyTrap::~DirtyTrap()
2575 {
2576         work_area->dirty_trap_enabled=false;
2577         if(work_area->dirty_trap_queued)
2578                 work_area->queue_render_preview();
2579 }
2580
2581 void
2582 studio::WorkArea::queue_draw_preview()
2583 {
2584         drawing_area->queue_draw();
2585 }
2586
2587 void
2588 studio::WorkArea::set_cursor(const Gdk::Cursor& x)
2589 {
2590         drawing_area->get_window()->set_cursor(x);
2591 }
2592 void
2593 studio::WorkArea::set_cursor(Gdk::CursorType x)
2594 {
2595         drawing_area->get_window()->set_cursor(Gdk::Cursor(x));
2596 }
2597
2598 #include "iconcontroler.h"
2599
2600 void
2601 studio::WorkArea::refresh_cursor()
2602 {
2603 //      set_cursor(IconControler::get_tool_cursor(canvas_view->get_smach().get_state_name(),drawing_area->get_window()));
2604 }
2605
2606 void
2607 studio::WorkArea::reset_cursor()
2608 {
2609         drawing_area->get_window()->set_cursor(Gdk::Cursor(Gdk::TOP_LEFT_ARROW));
2610 //      set_cursor(Gdk::TOP_LEFT_ARROW);
2611 }
2612
2613 void
2614 studio::WorkArea::set_zoom(float z)
2615 {
2616         z=max(1.0f/128.0f,min(128.0f,z));
2617         if(z==zoom)
2618                 return;
2619         zoom = z;
2620         refresh_dimension_info();
2621         /*if(async_renderer)
2622         {
2623                 async_renderer->stop();
2624                 async_renderer=0;
2625         }*/
2626         refreshes+=5;
2627         async_update_preview();
2628         //queue_render_preview();
2629 }
2630
2631 void
2632 WorkArea::set_selected_value_node(etl::loose_handle<synfig::ValueNode> x)
2633 {
2634         if(x!=selected_value_node_)
2635         {
2636                 selected_value_node_=x;
2637                 queue_draw();
2638         }
2639 }
2640
2641 void
2642 WorkArea::insert_renderer(const etl::handle<WorkAreaRenderer> &x)
2643 {
2644         renderer_set_.insert(x);
2645         x->set_work_area(this);
2646         queue_draw();
2647 }
2648
2649 void
2650 WorkArea::insert_renderer(const etl::handle<WorkAreaRenderer> &x, int priority)
2651 {
2652         x->set_priority(priority);
2653         insert_renderer(x);
2654 }
2655
2656 void
2657 WorkArea::erase_renderer(const etl::handle<WorkAreaRenderer> &x)
2658 {
2659         x->set_work_area(0);
2660         renderer_set_.erase(x);
2661         queue_draw();
2662 }
2663
2664 void
2665 WorkArea::resort_render_set()
2666 {
2667         std::set<etl::handle<WorkAreaRenderer> > tmp(
2668                 renderer_set_.begin(),
2669                 renderer_set_.end()
2670         );
2671         renderer_set_.swap(tmp);
2672         queue_draw();
2673 }