mirror of
https://github.com/Garux/netradiant-custom.git
synced 2026-10-11 00:00:04 +02:00
111 lines
2.8 KiB
C++
111 lines
2.8 KiB
C++
/*
|
|
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/gtk.h>
|
|
#include <uilib/uilib.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;
|
|
cairo_t *cr;
|
|
|
|
bool initialised() const {
|
|
return cr != nullptr;
|
|
}
|
|
void lazy_init(){
|
|
if ( !initialised() ) {
|
|
cr = gdk_cairo_create(gtk_widget_get_window(m_widget));
|
|
}
|
|
}
|
|
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 );
|
|
GtkAllocation allocation;
|
|
gtk_widget_get_allocation(m_widget, &allocation);
|
|
cairo_rectangle(cr, x, -(h) - (y - allocation.height), w, h);
|
|
cairo_set_source_rgb(cr, 1, 1, 1);
|
|
cairo_set_operator(cr, CAIRO_OPERATOR_DIFFERENCE);
|
|
cairo_stroke(cr);
|
|
}
|
|
|
|
public:
|
|
XORRectangle( ui::Widget widget ) : m_widget( widget ), cr( nullptr ) {
|
|
}
|
|
~XORRectangle(){
|
|
if ( initialised() ) {
|
|
cairo_destroy(cr);
|
|
}
|
|
}
|
|
void set( rectangle_t rectangle ){
|
|
if ( gtk_widget_get_realized( m_widget ) ) {
|
|
lazy_init();
|
|
draw();
|
|
m_rectangle = rectangle;
|
|
draw();
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
#endif
|