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 )
51 inline Coord2D coord2d_device2screen( const Coord2D& coord, unsigned int width, unsigned int height ){
52 return Coord2D( ( ( coord.x + 1.0f ) * 0.5f ) * width, ( ( coord.y + 1.0f ) * 0.5f ) * height );
55 inline rectangle_t rectangle_from_area( const float min[2], const float max[2], unsigned int width, unsigned int height ){
56 Coord2D botleft( coord2d_device2screen( Coord2D( min[0], min[1] ), width, height ) );
57 Coord2D topright( coord2d_device2screen( Coord2D( max[0], max[1] ), width, height ) );
58 return rectangle_t( botleft.x, botleft.y, topright.x - botleft.x, topright.y - botleft.y );
64 rectangle_t m_rectangle;
69 bool initialised() const {
73 if ( !initialised() ) {
74 m_gc = gdk_gc_new( m_widget->window );
76 GdkColor color = { 0, 0xffff, 0xffff, 0xffff, };
77 GdkColormap* colormap = gdk_window_get_colormap( m_widget->window );
78 gdk_colormap_alloc_color( colormap, &color, FALSE, TRUE );
79 gdk_gc_copy( m_gc, m_widget->style->white_gc );
80 gdk_gc_set_foreground( m_gc, &color );
81 gdk_gc_set_background( m_gc, &color );
83 gdk_gc_set_function( m_gc, GDK_INVERT );
87 const int x = float_to_integer( m_rectangle.x );
88 const int y = float_to_integer( m_rectangle.y );
89 const int w = float_to_integer( m_rectangle.w );
90 const int h = float_to_integer( m_rectangle.h );
91 gdk_draw_rectangle( m_widget->window, m_gc, FALSE, x, -( h ) - ( y - m_widget->allocation.height ), w, h );
95 XORRectangle( GtkWidget* widget ) : m_widget( widget ), m_gc( 0 ){
98 if ( initialised() ) {
102 void set( rectangle_t rectangle ){
103 if ( GTK_WIDGET_REALIZED( m_widget ) ) {
106 m_rectangle = rectangle;