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