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 **      Copyright (c) 2007 Chris Moore
  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 "renderer_canvas.h"
  34 #include "workarea.h"
  35 #include <ETL/misc>
  36
  37 #include "general.h"
  38
  39 #endif
  40
  41 /* === U S I N G =========================================================== */
  42
  43 using namespace std;
  44 using namespace etl;
  45 using namespace synfig;
  46 using namespace studio;
  47
  48 /* === M A C R O S ========================================================= */
  49
  50 /* === G L O B A L S ======================================================= */
  51
  52 /* === P R O C E D U R E S ================================================= */
  53
  54 /* === M E T H O D S ======================================================= */
  55
  56 Renderer_Canvas::~Renderer_Canvas()
  57 {
  58 }
  59 std::vector< std::pair<Glib::RefPtr<Gdk::Pixbuf>,int> >&
  60 Renderer_Canvas::get_tile_book()
  61 {
  62         return get_work_area()->get_tile_book();
  63 }
  64
  65 bool
  66 Renderer_Canvas::get_full_frame()const
  67 {
  68         return get_work_area()->get_full_frame();
  69 }
  70
  71 int Renderer_Canvas::get_refreshes()const
  72 {
  73         return get_work_area()->get_refreshes();
  74 }
  75
  76 bool
  77 Renderer_Canvas::get_canceled()const
  78 {
  79         return get_work_area()->get_canceled();
  80 }
  81
  82 bool
  83 Renderer_Canvas::get_queued()const
  84 {
  85         return get_work_area()->get_queued();
  86 }
  87
  88 bool
  89 Renderer_Canvas::get_rendering()const
  90 {
  91         return get_work_area()->get_rendering();
  92 }
  93
  94 void
  95 Renderer_Canvas::render_vfunc(
  96         const Glib::RefPtr<Gdk::Drawable>& drawable,
  97         const Gdk::Rectangle& /*expose_area*/
  98 )
  99 {
 100         assert(get_work_area());
 101         if(!get_work_area())
 102                 return;
 103
 104 //      const synfig::RendDesc &rend_desc(get_work_area()->get_canvas()->rend_desc());
 105
 106         const synfig::Vector focus_point(get_work_area()->get_focus_point());
 107
 108         std::vector< std::pair<Glib::RefPtr<Gdk::Pixbuf>,int> >& tile_book(get_tile_book());
 109
 110         int drawable_w,drawable_h;
 111         drawable->get_size(drawable_w,drawable_h);
 112
 113         // Calculate the window coordinates of the top-left
 114         // corner of the canvas.
 115         const synfig::Vector::value_type
 116                 x(focus_point[0]/get_pw()+drawable_w/2-get_w()/2),
 117                 y(focus_point[1]/get_ph()+drawable_h/2-get_h()/2);
 118
 119         /*const synfig::Vector::value_type window_startx(window_tl[0]);
 120         const synfig::Vector::value_type window_endx(window_br[0]);
 121         const synfig::Vector::value_type window_starty(window_tl[1]);
 122         const synfig::Vector::value_type window_endy(window_br[1]);
 123         */
 124         const int
 125                 tile_w(get_work_area()->get_tile_w()),
 126                 tile_h(get_work_area()->get_tile_h());
 127
 128         const int
 129                 w(get_w()),
 130                 h(get_h());
 131
 132         Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(drawable));
 133
 134         if(!tile_book.empty())
 135         {
 136                 if(get_full_frame())
 137                 {
 138                         if(tile_book[0].first)
 139                         {
 140                                 drawable->draw_pixbuf(
 141                                         gc, //GC
 142                                         tile_book[0].first, //pixbuf
 143                                         0, 0,   // Source X and Y
 144                                         round_to_int(x),round_to_int(y),        // Dest X and Y
 145                                         -1,-1,  // Width and Height
 146                                         Gdk::RGB_DITHER_MAX,            // RgbDither
 147                                         2, 2 // Dither offset X and Y
 148                                         );
 149                         }
 150                         if(tile_book[0].second!=get_refreshes() && get_canceled()==false && get_rendering()==false && get_queued()==false)
 151                                 get_work_area()->async_update_preview();
 152                 }
 153                 else
 154                 {
 155                         int div = get_work_area()->get_low_res_pixel_size();
 156                         const int width_in_tiles(w/tile_w+(((get_work_area()->get_low_resolution_flag())?((w/div)%(tile_w/div)):(w%tile_w))?1:0));
 157                         const int height_in_tiles(h/tile_h+(h%tile_h?1:0));
 158
 159                         int u(0),v(0),tx,ty;
 160                         int u1(0),v1(0),u2(width_in_tiles), v2(height_in_tiles);
 161
 162                         bool needs_refresh(false);
 163
 164                         u1=int(-x/tile_w);
 165                         v1=int(-y/tile_h);
 166                         u2=int((-x+drawable_w)/tile_w+1);
 167                         v2=int((-y+drawable_h)/tile_h+1);
 168                         if(u2>width_in_tiles)u2=width_in_tiles;
 169                         if(v2>height_in_tiles)v2=height_in_tiles;
 170                         if(u1<0)u1=0;
 171                         if(v1<0)v1=0;
 172
 173                         for(v=v1;v<v2;v++)
 174                         {
 175                                 for(u=u1;u<u2;u++)
 176                                 {
 177                                         int index=v*width_in_tiles+u;
 178                                         if(int(tile_book.size())>index && tile_book[index].first)
 179                                         {
 180                                                 tx=u*tile_w;
 181                                                 ty=v*tile_w;
 182
 183                                                 drawable->draw_pixbuf(
 184                                                         gc, //GC
 185                                                         tile_book[index].first, //pixbuf
 186                                                         0, 0,   // Source X and Y
 187                                                         round_to_int(x)+tx,round_to_int(y)+ty,  // Dest X and Y
 188                                                         -1,-1,  // Width and Height
 189                                                         Gdk::RGB_DITHER_MAX,            // RgbDither
 190                                                         2, 2 // Dither offset X and Y
 191                                                         );
 192                                         }
 193                                         if(tile_book[index].second!=get_refreshes())
 194                                                 needs_refresh=true;
 195                                 }
 196                         }
 197                         if(needs_refresh==true && get_canceled()==false && get_rendering()==false && get_queued()==false)
 198                         {
 199                                 //queue_render_preview();
 200                                 get_work_area()->async_update_preview();
 201                                 //update_preview();
 202                                 //return true;
 203                         }
 204
 205                 }
 206         }
 207
 208         // Draw the border around the rendered region
 209         {
 210                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
 211                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 212                 drawable->draw_rectangle(
 213                         gc,
 214                         false,  // Fill?
 215                         round_to_int(x),round_to_int(y),        // x,y
 216                         w,h     //w,h
 217                 );
 218         }
 219 }