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

   1 /* === S I N F G =========================================================== */
   2 /*!     \file template.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id: renderer_canvas.cpp,v 1.1.1.1 2005/01/07 03:34:36 darco Exp $
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002 Robert B. Quattlebaum Jr.
   9 **
  10 **      This software and associated documentation
  11 **      are CONFIDENTIAL and PROPRIETARY property of
  12 **      the above-mentioned copyright holder.
  13 **
  14 **      You may not copy, print, publish, or in any
  15 **      other way distribute this software without
  16 **      a prior written agreement with
  17 **      the copyright holder.
  18 **      \endlegal
  19 */
  20 /* ========================================================================= */
  21
  22 /* === H E A D E R S ======================================================= */
  23
  24 #ifdef USING_PCH
  25 #       include "pch.h"
  26 #else
  27 #ifdef HAVE_CONFIG_H
  28 #       include <config.h>
  29 #endif
  30
  31 #include "renderer_canvas.h"
  32 #include "workarea.h"
  33 #include <ETL/misc>
  34
  35 #endif
  36
  37 /* === U S I N G =========================================================== */
  38
  39 using namespace std;
  40 using namespace etl;
  41 using namespace sinfg;
  42 using namespace studio;
  43
  44 /* === M A C R O S ========================================================= */
  45
  46 /* === G L O B A L S ======================================================= */
  47
  48 /* === P R O C E D U R E S ================================================= */
  49
  50 /* === M E T H O D S ======================================================= */
  51
  52 Renderer_Canvas::~Renderer_Canvas()
  53 {
  54 }
  55 std::vector< std::pair<Glib::RefPtr<Gdk::Pixbuf>,int> >&
  56 Renderer_Canvas::get_tile_book()
  57 {
  58         return get_work_area()->get_tile_book();
  59 }
  60
  61 bool
  62 Renderer_Canvas::get_full_frame()const
  63 {
  64         return get_work_area()->get_full_frame();
  65 }
  66
  67 int Renderer_Canvas::get_refreshes()const
  68 {
  69         return get_work_area()->get_refreshes();
  70 }
  71
  72 bool
  73 Renderer_Canvas::get_canceled()const
  74 {
  75         return get_work_area()->get_canceled();
  76 }
  77
  78 bool
  79 Renderer_Canvas::get_queued()const
  80 {
  81         return get_work_area()->get_queued();
  82 }
  83
  84 bool
  85 Renderer_Canvas::get_rendering()const
  86 {
  87         return get_work_area()->get_rendering();
  88 }
  89
  90 void
  91 Renderer_Canvas::render_vfunc(
  92         const Glib::RefPtr<Gdk::Drawable>& drawable,
  93         const Gdk::Rectangle& expose_area
  94 )
  95 {
  96         assert(get_work_area());
  97         if(!get_work_area())
  98                 return;
  99
 100 //      const sinfg::RendDesc &rend_desc(get_work_area()->get_canvas()->rend_desc());
 101
 102         const sinfg::Vector focus_point(get_work_area()->get_focus_point());
 103
 104         std::vector< std::pair<Glib::RefPtr<Gdk::Pixbuf>,int> >& tile_book(get_tile_book());
 105
 106         int drawable_w,drawable_h;
 107         drawable->get_size(drawable_w,drawable_h);
 108
 109         // Calculate the window coordinates of the top-left
 110         // corner of the canvas.
 111         const sinfg::Vector::value_type
 112                 x(focus_point[0]/get_pw()+drawable_w/2-get_w()/2),
 113                 y(focus_point[1]/get_ph()+drawable_h/2-get_h()/2);
 114
 115         /*const sinfg::Vector::value_type window_startx(window_tl[0]);
 116         const sinfg::Vector::value_type window_endx(window_br[0]);
 117         const sinfg::Vector::value_type window_starty(window_tl[1]);
 118         const sinfg::Vector::value_type window_endy(window_br[1]);
 119         */
 120         const int
 121                 tile_w(get_work_area()->get_tile_w()),
 122                 tile_h(get_work_area()->get_tile_h());
 123
 124         const int
 125                 w(get_w()),
 126                 h(get_h());
 127
 128         Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(drawable));
 129
 130         if(!tile_book.empty())
 131         if(get_full_frame())
 132         {
 133                 if(tile_book[0].first)
 134                 {
 135                         drawable->draw_pixbuf(
 136                                 gc, //GC
 137                                 tile_book[0].first, //pixbuf
 138                                 0, 0,   // Source X and Y
 139                                 round_to_int(x),round_to_int(y),        // Dest X and Y
 140                                 -1,-1,  // Width and Height
 141                                 Gdk::RGB_DITHER_MAX,            // RgbDither
 142                                 2, 2 // Dither offset X and Y
 143                         );
 144                 }
 145                 if(tile_book[0].second!=get_refreshes() && get_canceled()==false && get_rendering()==false && get_queued()==false)
 146                         get_work_area()->async_update_preview();
 147         }
 148         else
 149         {
 150                 const int width_in_tiles(w/tile_w+(w%tile_w?1:0));
 151                 const int height_in_tiles(h/tile_h+(h%tile_h?1:0));
 152
 153                 int u(0),v(0),tx,ty;
 154                 int u1(0),v1(0),u2(width_in_tiles), v2(height_in_tiles);
 155
 156                 bool needs_refresh(false);
 157
 158                 u1=int(-x/tile_w);
 159                 v1=int(-y/tile_h);
 160                 u2=int((-x+drawable_w)/tile_w+1);
 161                 v2=int((-y+drawable_h)/tile_h+1);
 162                 if(u2>width_in_tiles)u2=width_in_tiles;
 163                 if(v2>height_in_tiles)v2=height_in_tiles;
 164                 if(u1<0)u1=0;
 165                 if(v1<0)v1=0;
 166
 167                 for(v=v1;v<v2;v++)
 168                 {
 169                         for(u=u1;u<u2;u++)
 170                         {
 171                                 int index=v*width_in_tiles+u;
 172                                 if(tile_book.size()>index && tile_book[index].first)
 173                                 {
 174                                         tx=u*tile_w;
 175                                         ty=v*tile_w;
 176
 177                                         drawable->draw_pixbuf(
 178                                                 gc, //GC
 179                                                 tile_book[index].first, //pixbuf
 180                                                 0, 0,   // Source X and Y
 181                                                 round_to_int(x)+tx,round_to_int(y)+ty,  // Dest X and Y
 182                                                 -1,-1,  // Width and Height
 183                                                 Gdk::RGB_DITHER_MAX,            // RgbDither
 184                                                 2, 2 // Dither offset X and Y
 185                                         );
 186                                 }
 187                                 if(tile_book[index].second!=get_refreshes())
 188                                         needs_refresh=true;
 189                         }
 190                 }
 191                 if(needs_refresh==true && get_canceled()==false && get_rendering()==false && get_queued()==false)
 192                 {
 193                         //queue_render_preview();
 194                         get_work_area()->async_update_preview();
 195                         //update_preview();
 196                         //return true;
 197                 }
 198
 199         }
 200
 201         // Draw the border around the rendered region
 202         {
 203                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
 204                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 205                 drawable->draw_rectangle(
 206                         gc,
 207                         false,  // Fill?
 208                         round_to_int(x),round_to_int(y),        // x,y
 209                         w,h     //w,h
 210                 );
 211         }
 212 }