+++ /dev/null
-/*
-Copyright (C) 2001-2006, William Joseph.
-All Rights Reserved.
-
-This file is part of GtkRadiant.
-
-GtkRadiant is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-GtkRadiant is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GtkRadiant; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
-
-#if !defined (INCLUDED_XORRECTANGLE_H)
-#define INCLUDED_XORRECTANGLE_H
-
-#include <gtk/gtkwidget.h>
-#include "math/vector.h"
-
-class rectangle_t
-{
-public:
- rectangle_t()
- : x(0), y(0), w(0), h(0)
- {}
- rectangle_t(float _x, float _y, float _w, float _h)
- : x(_x), y(_y), w(_w), h(_h)
- {}
- float x;
- float y;
- float w;
- float h;
-};
-
-struct Coord2D
-{
- float x, y;
- Coord2D(float _x, float _y)
- : x(_x), y(_y)
- {
- }
-};
-
-inline Coord2D coord2d_device2screen(const Coord2D& coord, unsigned int width, unsigned int height)
-{
- return Coord2D(((coord.x + 1.0f) * 0.5f) * width, ((coord.y + 1.0f) * 0.5f) * height);
-}
-
-inline rectangle_t rectangle_from_area(const float min[2], const float max[2], unsigned int width, unsigned int height)
-{
- Coord2D botleft(coord2d_device2screen(Coord2D(min[0], min[1]), width, height));
- Coord2D topright(coord2d_device2screen(Coord2D(max[0], max[1]), width, height));
- return rectangle_t(botleft.x, botleft.y, topright.x - botleft.x, topright.y - botleft.y);
-}
-
-class XORRectangle
-{
-
- rectangle_t m_rectangle;
-
- GtkWidget* m_widget;
- GdkGC* m_gc;
-
- bool initialised() const
- {
- return m_gc != 0;
- }
- void lazy_init()
- {
- if(!initialised())
- {
- m_gc = gdk_gc_new(m_widget->window);
-
- GdkColor color = { 0, 0xffff, 0xffff, 0xffff, };
- GdkColormap* colormap = gdk_window_get_colormap(m_widget->window);
- gdk_colormap_alloc_color (colormap, &color, FALSE, TRUE);
- gdk_gc_copy(m_gc, m_widget->style->white_gc);
- gdk_gc_set_foreground(m_gc, &color);
- gdk_gc_set_background(m_gc, &color);
-
- gdk_gc_set_function(m_gc, GDK_INVERT);
- }
- }
- void draw() const
- {
- const int x = float_to_integer(m_rectangle.x);
- const int y = float_to_integer(m_rectangle.y);
- const int w = float_to_integer(m_rectangle.w);
- const int h = float_to_integer(m_rectangle.h);
- gdk_draw_rectangle(m_widget->window, m_gc, FALSE, x, -(h) - (y - m_widget->allocation.height), w, h);
- }
-
-public:
- XORRectangle(GtkWidget* widget) : m_widget(widget), m_gc(0)
- {
- }
- ~XORRectangle()
- {
- if(initialised())
- {
- gdk_gc_unref(m_gc);
- }
- }
- void set(rectangle_t rectangle)
- {
- if(GTK_WIDGET_REALIZED(m_widget))
- {
- lazy_init();
- draw();
- m_rectangle = rectangle;
- draw();
- }
- }
-};
-
-
-#endif