src/gtk/gtkscreen.hpp

   1 /*
   2  * Copyright (c) 2007-2013, Czirkos Zoltan http://code.google.com/p/gdash/
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining
   5  * a copy of this software and associated documentation files (the
   6  * "Software"), to deal in the Software without restriction, including
   7  * without limitation the rights to use, copy, modify, merge, publish,
   8  * distribute, sublicense, and/or sell copies of the Software, and to
   9  * permit persons to whom the Software is furnished to do so, subject to
  10  * the following conditions:
  11
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  18  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
  19  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
  20  * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  21  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23 #ifndef GTKSCREEN_HPP_INCLUDED
  24 #define GTKSCREEN_HPP_INCLUDED
  25
  26 #include "config.h"
  27
  28 #include <gtk/gtk.h>
  29
  30 #include "gfx/screen.hpp"
  31
  32 class PixbufFactory;
  33 class ParticleSet;
  34
  35 /** Implementation of the Pixmap interface, using GTK+ cairo functions. */
  36 class GTKPixmap: public Pixmap {
  37 private:
  38     GdkPixbuf *pixbuf;
  39     cairo_surface_t *surface;
  40
  41 public:
  42     friend class GTKScreen;
  43     friend class GTKPixbufFactory;
  44
  45     GTKPixmap(GdkPixbuf *pixbuf, cairo_surface_t *surface): pixbuf(pixbuf), surface(surface) {
  46         g_object_ref(pixbuf);
  47     }
  48
  49     virtual int get_width() const;
  50     virtual int get_height() const;
  51
  52     /** Return the GdkPixbuf* associated with the object. */
  53     cairo_surface_t *get_cairo_surface() {
  54         return surface;
  55     }
  56     /** Return the GdkPixbuf* associated with the object. */
  57     cairo_surface_t const *get_cairo_surface() const {
  58         return surface;
  59     }
  60
  61     virtual ~GTKPixmap();
  62 };
  63
  64
  65 /**
  66  * This is a Screen, which uses Cairo for drawing.
  67  * It can render to a window (if given a GtkDrawingArea), or it can
  68  * render to a software back buffer (if the given GtkDrawingArea is NULL).
  69  */
  70 class GTKScreen: public Screen {
  71 private:
  72     GtkWidget *drawing_area;
  73     cairo_t *cr;
  74     cairo_surface_t *back;
  75
  76     GTKScreen(const GTKScreen &);           // not impl
  77     GTKScreen &operator=(const GTKScreen &); // not impl
  78     void free_buffer();
  79     virtual void configure_size();
  80     virtual void flip();
  81
  82 public:
  83     /** Creates a new GTKScreen, using the drawing area given as canvas.
  84      * @param drawing_area A GtkDrawingArea. If NULL pointer, the Screen renders to
  85      * a software buffer.
  86      */
  87     GTKScreen(PixbufFactory &pixbuf_factory, GtkWidget *drawing_area);
  88     ~GTKScreen();
  89     virtual void set_title(char const *title);
  90
  91     void set_drawing_area(GtkWidget *drawing_area);
  92     cairo_t *get_cairo_t() { return cr; }
  93
  94     virtual Pixmap *create_pixmap_from_pixbuf(const Pixbuf &pb, bool keep_alpha) const;
  95
  96     virtual void fill_rect(int x, int y, int w, int h, const GdColor &c);
  97     virtual void blit(Pixmap const &src, int dx, int dy) const;
  98     virtual void draw_particle_set(int dx, int dy, ParticleSet const &ps);
  99
 100     virtual void set_clip_rect(int x1, int y1, int w, int h);
 101     virtual void remove_clip_rect();
 102 };
 103 #endif
 104