Merge commit '86023af46cb7b0057fd3c9dae743660b2968e255' into garux-merge

[xonotic/netradiant.git] / libs / gtkutil / xorrectangle.cpp

diff --git a/libs/gtkutil/xorrectangle.cpp b/libs/gtkutil/xorrectangle.cpp
index e4f46c6b8b171a838841c651b4ce216b125e89b9..e7012328d104a9df2c68916465cfbed088f85496 100644 (file)
--- a/libs/gtkutil/xorrectangle.cpp
+++ b/libs/gtkutil/xorrectangle.cpp
@@ -1,22 +1,99 @@
-/*
-   Copyright (C) 2001-2006, William Joseph.
-   All Rights Reserved.
+#include "xorrectangle.h"
 
-   This file is part of GtkRadiant.
+#include <gtk/gtk.h>
 
-   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.
+#include "gtkutil/glwidget.h"
+#include "igl.h"
 
-   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.
+#include <gtk/gtkglwidget.h>
 
-   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
- */
+//#include "stream/stringstream.h"
 
-#include "xorrectangle.h"
+bool XORRectangle::initialised() const
+{
+    return !!cr;
+}
+
+void XORRectangle::lazy_init()
+{
+    if (!initialised()) {
+        cr = gdk_cairo_create(gtk_widget_get_window(m_widget));
+    }
+}
+
+void XORRectangle::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);
+}
+
+XORRectangle::XORRectangle(ui::GLArea widget) : m_widget(widget), cr(0)
+{
+}
+
+XORRectangle::~XORRectangle()
+{
+    if (initialised()) {
+        cairo_destroy(cr);
+    }
+}
+
+void XORRectangle::set(rectangle_t rectangle)
+{
+    if (gtk_widget_get_realized(m_widget)) {
+               if( m_rectangle.w != rectangle.w || m_rectangle.h != rectangle.h ){
+               //if( !(m_rectangle.w == 0 && m_rectangle.h == 0 && rectangle.w == 0 && rectangle.h == 0) ){
+               //globalOutputStream() << "m_x" << m_rectangle.x << " m_y" << m_rectangle.y << " m_w" << m_rectangle.w << " m_h" << m_rectangle.h << "\n";
+               //globalOutputStream() << "__x" << rectangle.x << " __y" << rectangle.y << " __w" << rectangle.w << " __h" << rectangle.h << "\n";
+                       if ( glwidget_make_current( m_widget ) != FALSE ) {
+                               GlobalOpenGL_debugAssertNoErrors();
+
+                               gint width, height;
+                               gdk_gl_drawable_get_size( gtk_widget_get_gl_drawable( m_widget ), &width, &height );
+
+                               glViewport( 0, 0, width, height );
+                               glMatrixMode( GL_PROJECTION );
+                               glLoadIdentity();
+                               glOrtho( 0, width, 0, height, -100, 100 );
+                               glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
+                               glDisable( GL_DEPTH_TEST );
+
+                               glDrawBuffer( GL_FRONT );
+
+                               glEnable( GL_BLEND );
+                               glBlendFunc( GL_ONE_MINUS_DST_COLOR, GL_ZERO );
+
+                               glLineWidth( 2 );
+                               glColor3f( 1, 1, 1 );
+                               glDisable( GL_TEXTURE_2D );
+                               glBegin( GL_LINE_LOOP );
+                               glVertex2f( m_rectangle.x, m_rectangle.y + m_rectangle.h );
+                               glVertex2f( m_rectangle.x + m_rectangle.w, m_rectangle.y + m_rectangle.h );
+                               glVertex2f( m_rectangle.x + m_rectangle.w, m_rectangle.y );
+                               glVertex2f( m_rectangle.x, m_rectangle.y );
+                               glEnd();
+
+                               glBegin( GL_LINE_LOOP );
+                               glVertex2f( rectangle.x, rectangle.y + rectangle.h );
+                               glVertex2f( rectangle.x + rectangle.w, rectangle.y + rectangle.h );
+                               glVertex2f( rectangle.x + rectangle.w, rectangle.y );
+                               glVertex2f( rectangle.x, rectangle.y );
+                               glEnd();
+
+                               glDrawBuffer( GL_BACK );
+                               GlobalOpenGL_debugAssertNoErrors();
+                               //glwidget_swap_buffers( m_widget );
+                               glwidget_make_current( m_widget );
+                       }
+               }
+               m_rectangle = rectangle;
+    }
+}