graphic_context.hxx

   1 //  $Id: graphic_context.hxx,v 1.16 2003/07/24 21:33:11 grumbel Exp $
   2 //
   3 //  Construo - A wire-frame construction game
   4 //  Copyright (C) 2002 Ingo Ruhnke <grumbel@gmx.de>
   5 //
   6 //  This program is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU General Public License
   8 //  as published by the Free Software Foundation; either version 2
   9 //  of the License, or (at your option) any later version.
  10 //
  11 //  This program is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //  GNU General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU General Public License
  17 //  along with this program; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19
  20 #ifndef HEADER_CONSTRUO_GRAPHIC_CONTEXT_HXX
  21 #define HEADER_CONSTRUO_GRAPHIC_CONTEXT_HXX
  22
  23 #include <string>
  24 #include <vector>
  25 #include "math.hxx"
  26 #include "vector2d.hxx"
  27 #include "color.hxx"
  28
  29 /** Graphic abstraction interface */
  30 class GraphicContext
  31 {
  32 private:
  33 public:
  34   struct Line
  35   {
  36     float x1, y1;
  37     float x2, y2;
  38   };
  39
  40   struct Circle
  41   {
  42     float x, y, r;
  43   };
  44
  45   void draw_circle(const Vector2d& pos, float radius, Color color)
  46   {
  47     draw_circle (pos.x, pos.y, radius, color);
  48   }
  49
  50   void draw_fill_circle(const Vector2d& pos, float radius, Color color)
  51   {
  52     draw_fill_circle (pos.x, pos.y, radius, color);
  53   }
  54
  55   void draw_string(const Vector2d& pos, const std::string& str, Color color = Color (0xFFFFFFFF))
  56   {
  57     draw_string (pos.x, pos.y, str, color);
  58   }
  59
  60   void draw_line (const Vector2d& pos1, const Vector2d& pos2, Color color, int wide = 0)
  61   {
  62     draw_line (pos1.x, pos1.y, pos2.x, pos2.y, color, wide);
  63   }
  64
  65   void draw_rect (const Vector2d& pos1, const Vector2d& pos2, Color color)
  66   {
  67     draw_rect (Math::min(pos1.x, pos2.x),
  68                Math::min(pos1.y, pos2.y),
  69                Math::max(pos1.x, pos2.x),
  70                Math::max(pos1.y, pos2.y),
  71                color);
  72   }
  73
  74   void draw_fill_rect (const Vector2d& pos1, const Vector2d& pos2, Color color)
  75   {
  76     draw_fill_rect (pos1.x, pos1.y, pos2.x, pos2.y, color);
  77   }
  78
  79   virtual void draw_lines (std::vector<Line>& lines, Color color, int wide = 0) =0;
  80   virtual void draw_line(float x1, float y1, float x2, float y2, Color color, int wide = 0) =0;
  81   virtual void draw_rect(float x1, float y1, float x2, float y2, Color color) =0;
  82   virtual void draw_circle(float x, float y, float radius, Color color) =0;
  83   virtual void draw_circles(std::vector<Circle>& circles, Color color) =0;
  84   virtual void draw_fill_circle(float x, float y, float radius, Color color) =0;
  85   virtual void draw_fill_rect(float x1, float y1, float x2, float y2, Color color) =0;
  86   virtual void draw_string(float x, float y, const std::string& str, Color color = Color (0xFFFFFFFF)) =0;
  87
  88   virtual void draw_string_centered(float x, float y, const std::string& str, Color color = Color (0xFFFFFFFF)) =0;
  89
  90   virtual void set_clip_rect (int x1_, int y1_, int x2_, int y2_) =0;
  91
  92   virtual int get_width ()  =0;
  93   virtual int get_height () =0;
  94
  95   virtual void clear () =0;
  96
  97   /** FIXME: flip should be handled outsite of GraphicContext */
  98   virtual void flip () =0;
  99   virtual void real_flip () {}
 100   virtual void flip (int x1, int y1, int x2, int y2) =0;
 101
 102   /** Goes into quick draw mode, disabling anti-aliasing and other
 103       time consuming features */
 104   virtual void push_quick_draw() {}
 105
 106   /** Goes out of quickdraw mode, restoring previous settings */
 107   virtual void pop_quick_draw() {}
 108 };
 109
 110 #endif
 111
 112 /* EOF */