2 Copyright (C) 2001-2006, William Joseph.
5 This file is part of GtkRadiant.
7 GtkRadiant is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 GtkRadiant is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GtkRadiant; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #if !defined (INCLUDED_XORRECTANGLE_H)
23 #define INCLUDED_XORRECTANGLE_H
25 #include <gtk/gtkwidget.h>
26 #include "math/vector.h"
32 : x(0), y(0), w(0), h(0)
34 rectangle_t(float _x, float _y, float _w, float _h)
35 : x(_x), y(_y), w(_w), h(_h)
46 Coord2D(float _x, float _y)
52 inline Coord2D coord2d_device2screen(const Coord2D& coord, unsigned int width, unsigned int height)
54 return Coord2D(((coord.x + 1.0f) * 0.5f) * width, ((coord.y + 1.0f) * 0.5f) * height);
57 inline rectangle_t rectangle_from_area(const float min[2], const float max[2], unsigned int width, unsigned int height)
59 Coord2D botleft(coord2d_device2screen(Coord2D(min[0], min[1]), width, height));
60 Coord2D topright(coord2d_device2screen(Coord2D(max[0], max[1]), width, height));
61 return rectangle_t(botleft.x, botleft.y, topright.x - botleft.x, topright.y - botleft.y);
67 rectangle_t m_rectangle;
72 bool initialised() const
80 m_gc = gdk_gc_new(m_widget->window);
82 GdkColor color = { 0, 0xffff, 0xffff, 0xffff, };
83 GdkColormap* colormap = gdk_window_get_colormap(m_widget->window);
84 gdk_colormap_alloc_color (colormap, &color, FALSE, TRUE);
85 gdk_gc_copy(m_gc, m_widget->style->white_gc);
86 gdk_gc_set_foreground(m_gc, &color);
87 gdk_gc_set_background(m_gc, &color);
89 gdk_gc_set_function(m_gc, GDK_INVERT);
94 const int x = float_to_integer(m_rectangle.x);
95 const int y = float_to_integer(m_rectangle.y);
96 const int w = float_to_integer(m_rectangle.w);
97 const int h = float_to_integer(m_rectangle.h);
98 gdk_draw_rectangle(m_widget->window, m_gc, FALSE, x, -(h) - (y - m_widget->allocation.height), w, h);
102 XORRectangle(GtkWidget* widget) : m_widget(widget), m_gc(0)
112 void set(rectangle_t rectangle)
114 if(GTK_WIDGET_REALIZED(m_widget))
118 m_rectangle = rectangle;