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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file renderer_canvas.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id$
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
   9 **
  10 **      This package is free software; you can redistribute it and/or
  11 **      modify it under the terms of the GNU General Public License as
  12 **      published by the Free Software Foundation; either version 2 of
  13 **      the License, or (at your option) any later version.
  14 **
  15 **      This package is distributed in the hope that it will be useful,
  16 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18 **      General Public License for more details.
  19 **      \endlegal
  20 */
  21 /* ========================================================================= */
  22
  23 /* === H E A D E R S ======================================================= */
  24
  25 #ifdef USING_PCH
  26 #       include "pch.h"
  27 #else
  28 #ifdef HAVE_CONFIG_H
  29 #       include <config.h>
  30 #endif
  31
  32 #include "renderer_canvas.h"
  33 #include "workarea.h"
  34 #include <ETL/misc>
  35
  36 #endif
  37
  38 /* === U S I N G =========================================================== */
  39
  40 using namespace std;
  41 using namespace etl;
  42 using namespace synfig;
  43 using namespace studio;
  44
  45 /* === M A C R O S ========================================================= */
  46
  47 /* === G L O B A L S ======================================================= */
  48
  49 /* === P R O C E D U R E S ================================================= */
  50
  51 /* === M E T H O D S ======================================================= */
  52
  53 Renderer_Canvas::~Renderer_Canvas()
  54 {
  55 }
  56 std::vector< std::pair<Glib::RefPtr<Gdk::Pixbuf>,int> >&
  57 Renderer_Canvas::get_tile_book()
  58 {
  59         return get_work_area()->get_tile_book();
  60 }
  61
  62 bool
  63 Renderer_Canvas::get_full_frame()const
  64 {
  65         return get_work_area()->get_full_frame();
  66 }
  67
  68 int Renderer_Canvas::get_refreshes()const
  69 {
  70         return get_work_area()->get_refreshes();
  71 }
  72
  73 bool
  74 Renderer_Canvas::get_canceled()const
  75 {
  76         return get_work_area()->get_canceled();
  77 }
  78
  79 bool
  80 Renderer_Canvas::get_queued()const
  81 {
  82         return get_work_area()->get_queued();
  83 }
  84
  85 bool
  86 Renderer_Canvas::get_rendering()const
  87 {
  88         return get_work_area()->get_rendering();
  89 }
  90
  91 void
  92 Renderer_Canvas::render_vfunc(
  93         const Glib::RefPtr<Gdk::Drawable>& drawable,
  94         const Gdk::Rectangle& expose_area
  95 )
  96 {
  97         assert(get_work_area());
  98         if(!get_work_area())
  99                 return;
 100
 101 //      const synfig::RendDesc &rend_desc(get_work_area()->get_canvas()->rend_desc());
 102
 103         const synfig::Vector focus_point(get_work_area()->get_focus_point());
 104
 105         std::vector< std::pair<Glib::RefPtr<Gdk::Pixbuf>,int> >& tile_book(get_tile_book());
 106
 107         int drawable_w,drawable_h;
 108         drawable->get_size(drawable_w,drawable_h);
 109
 110         // Calculate the window coordinates of the top-left
 111         // corner of the canvas.
 112         const synfig::Vector::value_type
 113                 x(focus_point[0]/get_pw()+drawable_w/2-get_w()/2),
 114                 y(focus_point[1]/get_ph()+drawable_h/2-get_h()/2);
 115
 116         /*const synfig::Vector::value_type window_startx(window_tl[0]);
 117         const synfig::Vector::value_type window_endx(window_br[0]);
 118         const synfig::Vector::value_type window_starty(window_tl[1]);
 119         const synfig::Vector::value_type window_endy(window_br[1]);
 120         */
 121         const int
 122                 tile_w(get_work_area()->get_tile_w()),
 123                 tile_h(get_work_area()->get_tile_h());
 124
 125         const int
 126                 w(get_w()),
 127                 h(get_h());
 128
 129         Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(drawable));
 130
 131         if(!tile_book.empty())
 132         if(get_full_frame())
 133         {
 134                 if(tile_book[0].first)
 135                 {
 136                         drawable->draw_pixbuf(
 137                                 gc, //GC
 138                                 tile_book[0].first, //pixbuf
 139                                 0, 0,   // Source X and Y
 140                                 round_to_int(x),round_to_int(y),        // Dest X and Y
 141                                 -1,-1,  // Width and Height
 142                                 Gdk::RGB_DITHER_MAX,            // RgbDither
 143                                 2, 2 // Dither offset X and Y
 144                         );
 145                 }
 146                 if(tile_book[0].second!=get_refreshes() && get_canceled()==false && get_rendering()==false && get_queued()==false)
 147                         get_work_area()->async_update_preview();
 148         }
 149         else
 150         {
 151                 const int width_in_tiles(w/tile_w+(w%tile_w?1:0));
 152                 const int height_in_tiles(h/tile_h+(h%tile_h?1:0));
 153
 154                 int u(0),v(0),tx,ty;
 155                 int u1(0),v1(0),u2(width_in_tiles), v2(height_in_tiles);
 156
 157                 bool needs_refresh(false);
 158
 159                 u1=int(-x/tile_w);
 160                 v1=int(-y/tile_h);
 161                 u2=int((-x+drawable_w)/tile_w+1);
 162                 v2=int((-y+drawable_h)/tile_h+1);
 163                 if(u2>width_in_tiles)u2=width_in_tiles;
 164                 if(v2>height_in_tiles)v2=height_in_tiles;
 165                 if(u1<0)u1=0;
 166                 if(v1<0)v1=0;
 167
 168                 for(v=v1;v<v2;v++)
 169                 {
 170                         for(u=u1;u<u2;u++)
 171                         {
 172                                 int index=v*width_in_tiles+u;
 173                                 if(tile_book.size()>index && tile_book[index].first)
 174                                 {
 175                                         tx=u*tile_w;
 176                                         ty=v*tile_w;
 177
 178                                         drawable->draw_pixbuf(
 179                                                 gc, //GC
 180                                                 tile_book[index].first, //pixbuf
 181                                                 0, 0,   // Source X and Y
 182                                                 round_to_int(x)+tx,round_to_int(y)+ty,  // Dest X and Y
 183                                                 -1,-1,  // Width and Height
 184                                                 Gdk::RGB_DITHER_MAX,            // RgbDither
 185                                                 2, 2 // Dither offset X and Y
 186                                         );
 187                                 }
 188                                 if(tile_book[index].second!=get_refreshes())
 189                                         needs_refresh=true;
 190                         }
 191                 }
 192                 if(needs_refresh==true && get_canceled()==false && get_rendering()==false && get_queued()==false)
 193                 {
 194                         //queue_render_preview();
 195                         get_work_area()->async_update_preview();
 196                         //update_preview();
 197                         //return true;
 198                 }
 199
 200         }
 201
 202         // Draw the border around the rendered region
 203         {
 204                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
 205                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 206                 drawable->draw_rectangle(
 207                         gc,
 208                         false,  // Fill?
 209                         round_to_int(x),round_to_int(y),        // x,y
 210                         w,h     //w,h
 211                 );
 212         }
 213 }