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-rw-r--r--tdegtk/tdegtk-utils.cpp1064
1 files changed, 1064 insertions, 0 deletions
diff --git a/tdegtk/tdegtk-utils.cpp b/tdegtk/tdegtk-utils.cpp
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+++ b/tdegtk/tdegtk-utils.cpp
@@ -0,0 +1,1064 @@
+/*
+* this file was largely taken from the oxygen gtk engine
+* Copyright (c) 2010 Hugo Pereira Da Costa <hugo@oxygen-icons.org>
+* Copyright (c) 2010 Ruslan Kabatsayev <b7.10110111@gmail.com>
+*
+* GdkPixbuf modification code from Walmis
+* <http://gnome-look.org/content/show.php?content=77783&forumpage=3>
+*
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Lesser General Public
+* License as published by the Free Software Foundation; either
+* version 2 of the License, or( at your option ) any later version.
+*
+* This library 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
+* Lesser General Public License for more details.
+*
+* You should have received a copy of the GNU Lesser General Public
+* License along with this library; if not, write to the Free
+* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+* MA 02110-1301, USA.
+*/
+
+#include "tdegtk-utils.h"
+//#include "oxygengtktypenames.h"
+#include "config.h"
+
+#include <cmath>
+#include <cstring>
+#include <gtk/gtk.h>
+#include <iostream>
+#include <set>
+
+ //_____________________________________________________________________________
+ std::ostream& operator << ( std::ostream& out, const GtkWidgetPath* path )
+ {
+ if( !path )
+ {
+
+ out << " (null)";
+
+ } else {
+
+ for( gint pos=0; pos<gtk_widget_path_length( path ); ++pos )
+ {
+ const char* name( g_type_name( gtk_widget_path_iter_get_object_type( path, pos ) ) );
+ if(!name) break;
+ out << "/" << name;
+ }
+
+ }
+
+ return out;
+
+ }
+
+
+
+ //____________________________________________________________
+ void Gtk::gtk_container_adjust_buttons_state(GtkContainer* container,gpointer data)
+ {
+ if(GTK_IS_BUTTON(container))
+ {
+
+ int x(0),y(0);
+ GtkWidget* button=GTK_WIDGET(container);
+ GtkAllocation allocation( gtk_widget_get_allocation( button ) );
+
+ GdkDeviceManager* manager( gdk_display_get_device_manager( gtk_widget_get_display( button ) ) );
+ GdkDevice* pointer( gdk_device_manager_get_client_pointer( manager ) );
+ gdk_window_get_device_position( gtk_widget_get_window( button ), pointer, &x, &y, 0L);
+
+ if( !(x>0 && y>0 &&
+ x < allocation.width &&
+ y < allocation.height) && gtk_widget_get_state(button)==GTK_STATE_ACTIVE )
+ { gtk_widget_set_state(button,GTK_STATE_NORMAL); }
+
+ gtk_button_set_relief(GTK_BUTTON(button),GTK_RELIEF_NORMAL);
+ gtk_widget_set_size_request(button,16,16);
+
+ return;
+
+ }
+
+ if(GTK_IS_CONTAINER(container))
+ { gtk_container_foreach(container,(GtkCallback)gtk_container_adjust_buttons_state,0L); }
+
+ }
+
+ //____________________________________________________________
+ bool Gtk::gtk_widget_path_has_type( const GtkWidgetPath* path, GType type )
+ {
+
+ if( !path ) return false;
+ for( gint pos=0; pos<gtk_widget_path_length( path ); ++pos )
+ {
+ const GType local( gtk_widget_path_iter_get_object_type( path, pos ) );
+ if( local == type || g_type_is_a( local, type ) )
+ { return true; }
+ }
+
+ return false;
+
+ }
+
+ //____________________________________________________________
+ bool Gtk::gtk_widget_is_applet( GtkWidget* widget )
+ {
+ if( !widget ) return false;
+
+ #if OXYGEN_DEBUG
+ std::cerr << "Gtk::gtk_widget_is_applet(): " << Gtk::gtk_widget_path(widget) << std::endl;
+ #endif
+
+ static const char* names[] =
+ {
+ "Panel",
+ "PanelWidget",
+ "PanelApplet",
+ "XfcePanelWindow",
+ 0
+ };
+
+ // check widget name
+ std::string name( G_OBJECT_TYPE_NAME( widget ) );
+ for( unsigned int i = 0; names[i]; ++i )
+ { if( g_object_is_a( G_OBJECT( widget ), names[i] ) || name.find( names[i] ) == 0 ) return true; }
+
+ // also check parent
+ if( GtkWidget* parent = gtk_widget_get_parent( widget ) )
+ {
+ name = G_OBJECT_TYPE_NAME( parent );
+ for( unsigned int i = 0; names[i]; ++i )
+ { if( g_object_is_a( G_OBJECT( parent ), names[i] ) || name.find( names[i] ) == 0 ) return true; }
+
+ }
+
+ // also check first widget path element (needed for xfce panel)
+ std::string widgetPath=Gtk::gtk_widget_path(widget);
+ {
+ for( unsigned int i = 0; names[i]; ++i )
+ {
+ if( widgetPath.find(names[i]) != std::string::npos )
+ return true;
+ }
+ }
+
+ return false;
+
+ }
+
+ //____________________________________________________________
+ void Gtk::gtk_widget_print_tree( GtkWidget* widget )
+ {
+
+ if( !widget ) return;
+ std::cerr << "Oxygen::Gtk::gtk_widget_print_tree - widget: " << widget << " (" << G_OBJECT_TYPE_NAME( widget ) << ")" << std::endl;
+ while( ( widget = gtk_widget_get_parent( widget ) ) )
+ { std::cerr << " parent: " << widget << " (" << G_OBJECT_TYPE_NAME( widget ) << ")" << std::endl; }
+
+ }
+
+ //________________________________________________________
+ bool Gtk::gdk_default_screen_is_composited( void )
+ {
+ GdkScreen* screen( gdk_screen_get_default() );
+ return (screen && gdk_screen_is_composited( screen ) );
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_widget_has_rgba( GtkWidget* widget )
+ {
+
+ if( !widget ) return false;
+ if( !gdk_default_screen_is_composited() ) return false;
+ return gdk_visual_has_rgba( gtk_widget_get_visual (widget) );
+
+ }
+
+ //________________________________________________________
+ bool Gtk::gdk_window_is_base( GdkWindow* window )
+ {
+
+ if( !GDK_IS_WINDOW( window ) ) return false;
+
+ GdkWindowTypeHint hint = gdk_window_get_type_hint( window );
+
+ #if OXYGEN_DEBUG
+ std::cerr << "Gtk::gdk_window_is_base - " << TypeNames::windowTypeHint( hint ) << std::endl;
+ #endif
+
+ return(
+ hint == GDK_WINDOW_TYPE_HINT_NORMAL ||
+ hint == GDK_WINDOW_TYPE_HINT_DIALOG ||
+ hint == GDK_WINDOW_TYPE_HINT_UTILITY );
+ }
+
+ //________________________________________________________
+ bool Gtk::gdk_window_nobackground( GdkWindow* window )
+ {
+ if( !GDK_IS_WINDOW( window ) ) return false;
+
+ GdkWindowTypeHint hint = gdk_window_get_type_hint( window );
+ return( hint == GDK_WINDOW_TYPE_HINT_COMBO || hint == GDK_WINDOW_TYPE_HINT_TOOLTIP );
+
+ }
+
+ //________________________________________________________
+ bool Gtk::gdk_window_has_rgba( GdkWindow* window )
+ {
+
+ if( !window ) return false;
+
+ if( !gdk_default_screen_is_composited() ) return false;
+ return gdk_visual_has_rgba( gdk_window_get_visual( window ) );
+
+ }
+
+ //________________________________________________________
+ bool Gtk::gdk_visual_has_rgba( GdkVisual* visual )
+ {
+ // check depth
+ if( gdk_visual_get_depth( visual ) != 32 ) return false;
+
+ // check red pixel
+ guint32 redMask;
+ gdk_visual_get_red_pixel_details( visual, &redMask, 0L, 0L );
+ if( redMask != 0xff0000 ) return false;
+
+ // check green pixel
+ guint32 greenMask;
+ gdk_visual_get_green_pixel_details( visual, &greenMask, 0L, 0L );
+ if( greenMask != 0x00ff00 ) return false;
+
+ // check blue pixel
+ guint32 blueMask;
+ gdk_visual_get_blue_pixel_details( visual, &blueMask, 0L, 0L );
+ if( blueMask != 0x0000ff ) return false;
+
+ return true;
+
+ }
+
+ //________________________________________________________
+ bool Gtk::g_object_is_a( const GObject* object, const std::string& typeName )
+ {
+
+ if( object )
+ {
+ const GType tmp( g_type_from_name( typeName.c_str() ) );
+ if( tmp )
+ { return g_type_check_instance_is_a( (GTypeInstance*) object, tmp ); }
+ }
+
+ return false;
+ }
+
+ //________________________________________________________
+ std::string Gtk::gtk_widget_path( GtkWidget* widget )
+ {
+
+ if(GTK_IS_WIDGET(widget))
+ {
+ gchar* widgetPath;
+ gtk_widget_path( widget, 0L, &widgetPath, 0L);
+ const std::string out( widgetPath );
+ g_free( widgetPath );
+ return out;
+ }
+ return std::string("not-widget");
+
+ }
+
+ //________________________________________________________
+ GtkWidget* Gtk::gtk_widget_find_parent( GtkWidget* widget, GType type )
+ {
+
+ for( GtkWidget* parent = widget; parent; parent = gtk_widget_get_parent( parent ) )
+ { if( G_TYPE_CHECK_INSTANCE_TYPE( parent, type ) ) return parent; }
+
+ return 0L;
+ }
+
+ //________________________________________________________
+ GtkWidget* Gtk::gtk_parent_groupbox( GtkWidget* widget )
+ {
+
+ for( GtkWidget* parent = widget; parent; parent = gtk_widget_get_parent( parent ) )
+ { if( gtk_widget_is_groupbox( parent ) ) return parent; }
+
+ return 0L;
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_widget_is_parent( GtkWidget* widget, GtkWidget* potentialParent )
+ {
+
+ for( GtkWidget* parent = gtk_widget_get_parent( widget ); parent; parent = gtk_widget_get_parent( parent ) )
+ { if( potentialParent==parent ) return true; }
+
+ return false;
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_parent_is_shadow_in( GtkWidget* widget )
+ {
+ for( GtkWidget* parent = gtk_widget_get_parent( widget ); parent; parent = gtk_widget_get_parent( parent ) )
+ {
+ if( GTK_IS_FRAME( parent ) && gtk_frame_get_shadow_type( GTK_FRAME( parent ) ) == GTK_SHADOW_IN ) return true;
+ if( GTK_IS_SCROLLED_WINDOW( parent ) && gtk_scrolled_window_get_shadow_type( GTK_SCROLLED_WINDOW( parent ) ) == GTK_SHADOW_IN ) return true;
+ }
+
+ return false;
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_button_is_flat( GtkWidget* widget )
+ {
+ if( !GTK_IS_BUTTON( widget ) ) return false;
+ return ( gtk_button_get_relief( GTK_BUTTON( widget ) ) == GTK_RELIEF_NONE );
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_button_is_header( GtkWidget* widget )
+ { return GTK_IS_BUTTON( widget ) && gtk_parent_tree_view( widget ); }
+
+ //________________________________________________________
+ bool Gtk::gtk_button_is_in_path_bar( GtkWidget* widget )
+ {
+ if( !( GTK_IS_BUTTON( widget ) && gtk_widget_get_parent( widget ) ) ) return false;
+
+ std::string name(G_OBJECT_TYPE_NAME( gtk_widget_get_parent( widget ) ) );
+ return name == "GtkPathBar" || name == "NautilusPathBar";
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_path_bar_button_is_last( GtkWidget* widget )
+ {
+
+ GtkWidget* parent( gtk_widget_get_parent( widget ) );
+
+ // get parent and check type
+ if( !( parent && GTK_IS_CONTAINER( parent ) ) ) return false;
+
+ // get children
+ GList* children( gtk_container_get_children( GTK_CONTAINER( parent ) ) );
+
+ /*
+ for some reason, pathbar buttons are ordered in the container in reverse order.
+ meaning that the last button (in the pathbar) is stored first in the list.
+ */
+ bool result = (widget == g_list_first( children )->data );
+ if( children ) g_list_free( children );
+ return result;
+
+ }
+
+ //________________________________________________________
+ GtkWidget* Gtk::gtk_button_find_image(GtkWidget* button)
+ {
+
+ // check widget type
+ if(!GTK_IS_CONTAINER(button)) return 0L;
+
+ GtkWidget* result( 0L );
+ GList* children( gtk_container_get_children( GTK_CONTAINER( button ) ) );
+ for( GList *child = g_list_first( children ); child; child = g_list_next( child ) )
+ {
+ if( GTK_IS_IMAGE( child->data ) )
+ {
+ result = GTK_WIDGET( child->data );
+ break;
+
+ } else if( GTK_IS_CONTAINER( child->data ) ) {
+
+ result = gtk_button_find_image( GTK_WIDGET(child->data ) );
+ break;
+
+ }
+
+ }
+
+ if( children ) g_list_free( children );
+ return result;
+
+ }
+
+ //________________________________________________________
+ GtkWidget* Gtk::gtk_button_find_label(GtkWidget* button)
+ {
+
+ // check widget type
+ if( !GTK_IS_CONTAINER(button) ) return 0L;
+
+ GtkWidget* result( 0L );
+ GList* children( gtk_container_get_children( GTK_CONTAINER( button ) ) );
+ for( GList *child = g_list_first( children ); child; child = g_list_next( child ) )
+ {
+
+ if( GTK_IS_LABEL( child->data) )
+ {
+ result = GTK_WIDGET( child->data );
+ break;
+
+ } else if( GTK_IS_CONTAINER( child->data ) ) {
+
+ result = gtk_button_find_image(GTK_WIDGET(child->data));
+ break;
+
+ }
+
+ }
+
+ if( children ) g_list_free( children );
+ return result;
+
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_combobox_has_frame( GtkWidget* widget )
+ {
+
+ GValue val = { 0, };
+ g_value_init(&val, G_TYPE_BOOLEAN);
+ g_object_get_property( G_OBJECT( widget ), "has-frame", &val );
+ return (bool) g_value_get_boolean( &val );
+
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_combobox_is_tree_view( GtkWidget* widget )
+ {
+ // check types and path
+ if( !widget && GTK_IS_TREE_VIEW( widget ) && GTK_IS_SCROLLED_WINDOW( gtk_widget_get_parent( widget ) ) ) return false;
+ return Gtk::gtk_widget_path( widget ) == "gtk-combobox-popup-window.GtkScrolledWindow.GtkTreeView";
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_combobox_is_scrolled_window( GtkWidget* widget )
+ {
+ // check types and path
+ if( !GTK_IS_SCROLLED_WINDOW(widget) ) return false;
+ return Gtk::gtk_widget_path( widget ) == "gtk-combobox-popup-window.GtkScrolledWindow";
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_combobox_is_viewport( GtkWidget* widget )
+ {
+ if( !GTK_IS_VIEWPORT(widget) ) return false;
+ static const std::string match( "gtk-combo-popup-window" );
+ return Gtk::gtk_widget_path( widget ).substr( 0, match.size() ) == match;
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_combobox_is_frame( GtkWidget* widget )
+ {
+ if( !GTK_IS_FRAME(widget) ) return false;
+ static const std::string match( "gtk-combo-popup-window" );
+ return Gtk::gtk_widget_path( widget ).substr( 0, match.size() ) == match;
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_combobox_appears_as_list( GtkWidget* widget )
+ {
+ gboolean appearsAsList;
+ gtk_widget_style_get( widget, "appears-as-list", &appearsAsList, NULL );
+ return (bool) appearsAsList;
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_notebook_tab_contains( GtkWidget* widget, int tab, int x, int y )
+ {
+
+ if( !( tab >= 0 && GTK_IS_NOTEBOOK( widget ) ) ) return false;
+
+ // cast to notebook and check against number of pages
+ GtkNotebook* notebook( GTK_NOTEBOOK( widget ) );
+ if( tab >= gtk_notebook_get_n_pages( notebook ) ) return false;
+
+ // retrieve page and tab label
+ GtkWidget* page( gtk_notebook_get_nth_page( notebook, tab ) );
+ GtkWidget* tabLabel( gtk_notebook_get_tab_label( notebook, page ) );
+
+ // get allocted size and compare to position
+ const GtkAllocation allocation( gtk_widget_get_allocation( tabLabel ) );
+ return Gtk::gdk_rectangle_contains( &allocation, x, y );
+
+ }
+
+ //________________________________________________________
+ int Gtk::gtk_notebook_find_tab( GtkWidget* widget, int x, int y )
+ {
+
+ if( !GTK_IS_NOTEBOOK( widget ) ) return -1;
+
+ // cast to notebook and check against number of pages
+ GtkNotebook* notebook( GTK_NOTEBOOK( widget ) );
+ int tab(-1);
+ int minDistance( -1 );
+ for( int i = gtk_notebook_find_first_tab( widget ); i < gtk_notebook_get_n_pages( notebook ); ++i )
+ {
+
+ // retrieve page and tab label
+ GtkWidget* page( gtk_notebook_get_nth_page( notebook, i ) );
+ if( !page ) continue;
+
+ // get label
+ GtkWidget* tabLabel( gtk_notebook_get_tab_label( notebook, page ) );
+ if(!tabLabel) continue;
+
+ // get allocted size and compare to position
+ const GtkAllocation allocation( gtk_widget_get_allocation( tabLabel ) );
+
+ // get manhattan length
+ const int distance = int(
+ std::abs( double( allocation.x + allocation.width/2 - x ) ) +
+ std::abs( double( allocation.y + allocation.height/2 - y ) ) );
+ if( minDistance < 0 || distance < minDistance )
+ {
+ tab = i;
+ minDistance = distance;
+ }
+ }
+
+ return tab;
+
+ }
+
+ //________________________________________________________
+ int Gtk::gtk_notebook_find_first_tab( GtkWidget* widget )
+ {
+
+ // TODO: reimplement with gtk+3.0
+ return 0;
+
+// if( !GTK_IS_NOTEBOOK( widget ) ) return 0;
+//
+// // cast to notebook
+// GtkNotebook* notebook( GTK_NOTEBOOK( widget ) );
+// return g_list_position( notebook->children, notebook->first_tab );
+
+ }
+
+ //____________________________________________________________
+ bool Gtk::gtk_notebook_is_tab_label(GtkNotebook* notebook, GtkWidget* widget )
+ {
+
+ for( int i = 0; i < gtk_notebook_get_n_pages( notebook ); ++i )
+ {
+ // retrieve page and tab label
+ GtkWidget* page( gtk_notebook_get_nth_page( notebook, i ) );
+ if( !page ) continue;
+
+ GtkWidget* tabLabel( gtk_notebook_get_tab_label( notebook, page ) );
+ if( widget == tabLabel ) return true;
+ }
+
+ return false;
+
+ }
+
+
+ //____________________________________________________________
+ void Gtk::gtk_notebook_get_tabbar_rect( GtkNotebook* notebook, GdkRectangle* rect )
+ {
+ // check notebook and rect
+ if( !( notebook && rect ) ) return;
+
+ // check tab visibility
+ GList* children( gtk_container_get_children( GTK_CONTAINER( notebook ) ) );
+ if( !( gtk_notebook_get_show_tabs( notebook ) && children ) )
+ {
+ if( children ) g_list_free( children );
+ *rect = gdk_rectangle();
+ return;
+ }
+
+ // free children
+ if( children ) g_list_free( children );
+
+ // get full rect
+ gtk_widget_get_allocation( GTK_WIDGET( notebook ), rect );
+
+ // adjust to account for borderwidth
+ guint borderWidth( gtk_container_get_border_width( GTK_CONTAINER( notebook ) ) );
+ rect->x += borderWidth;
+ rect->y += borderWidth;
+ rect->height -= 2*borderWidth;
+ rect->width -= 2*borderWidth;
+
+ // get current page
+ int pageIndex( gtk_notebook_get_current_page( notebook ) );
+ if( !( pageIndex >= 0 && pageIndex < gtk_notebook_get_n_pages( notebook ) ) )
+ {
+ *rect = gdk_rectangle();
+ return;
+ }
+
+ GtkWidget* page( gtk_notebook_get_nth_page( notebook, pageIndex ) );
+ if( !page )
+ {
+ *rect = gdk_rectangle();
+ return;
+ }
+
+ // removes page allocated size from rect, based on tabwidget orientation
+ const GtkAllocation pageAllocation( gtk_widget_get_allocation( page ) );
+ switch( gtk_notebook_get_tab_pos( notebook ) )
+ {
+ case GTK_POS_BOTTOM:
+ rect->y += pageAllocation.height;
+ rect->height -= pageAllocation.height;
+ break;
+
+ case GTK_POS_TOP:
+ rect->height -= pageAllocation.height;
+ break;
+
+ case GTK_POS_RIGHT:
+ rect->x += pageAllocation.width;
+ rect->width -= pageAllocation.width;
+ break;
+
+ case GTK_POS_LEFT:
+ rect->width -= pageAllocation.width;
+ break;
+ }
+
+ return;
+
+ }
+
+ //____________________________________________________________
+ bool Gtk::gtk_notebook_has_visible_arrows( GtkNotebook* notebook )
+ {
+
+ if( !gtk_notebook_get_show_tabs( notebook ) ) return false;
+
+ // loop over pages
+ for( int i = 0; i < gtk_notebook_get_n_pages( notebook ); ++i )
+ {
+
+ // retrieve page and tab label
+ GtkWidget* page( gtk_notebook_get_nth_page( notebook, i ) );
+ if( !page ) continue;
+
+ GtkWidget* label( gtk_notebook_get_tab_label( notebook, page ) );
+ if( label && !gtk_widget_get_mapped( label ) ) return true;
+ }
+
+ return false;
+
+ }
+
+ //____________________________________________________________
+ bool Gtk::gtk_notebook_update_close_buttons(GtkNotebook* notebook)
+ {
+ int numPages=gtk_notebook_get_n_pages( notebook );
+ for( int i = 0; i < numPages; ++i )
+ {
+
+ // retrieve page
+ GtkWidget* page( gtk_notebook_get_nth_page( notebook, i ) );
+ if( !page ) continue;
+
+ // retrieve tab label
+ GtkWidget* tabLabel( gtk_notebook_get_tab_label( notebook, page ) );
+ if( tabLabel && GTK_IS_CONTAINER( tabLabel ) )
+ { gtk_container_adjust_buttons_state( GTK_CONTAINER( tabLabel ) ); }
+
+ }
+ return FALSE;
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_notebook_is_close_button(GtkWidget* widget)
+ {
+ if( GtkNotebook* nb=GTK_NOTEBOOK(gtk_parent_notebook(widget) ) )
+ {
+ // check if the button resides on tab label, not anywhere on the tab
+ bool tabLabelIsParent=false;
+ for( int i=0; i < gtk_notebook_get_n_pages(nb); ++i )
+ {
+ GtkWidget* tabLabel( gtk_notebook_get_tab_label(nb,gtk_notebook_get_nth_page( nb, i ) ) );
+ if( gtk_widget_is_parent( widget, GTK_WIDGET(tabLabel) ) )
+ { tabLabelIsParent=true; }
+ }
+
+ if( !tabLabelIsParent ) return false;
+
+ // make sure button has no text and some image (for now, just hope it's a close icon)
+ if( gtk_button_find_image(widget) && !gtk_button_get_label( GTK_BUTTON(widget) ) )
+ { return true; }
+
+ // check for pidgin 'x' close button
+ if( GtkWidget* label = gtk_button_find_label(widget) )
+ {
+
+ const gchar* labelText=gtk_label_get_text( GTK_LABEL(label) );
+ if(!strcmp(labelText,"×")) // It's not letter 'x' - it's a special symbol
+ {
+ gtk_widget_hide( label );
+ return true;
+ } else return false;
+
+ } else return false;
+
+ } else return false;
+
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_scrolled_window_force_sunken( GtkWidget* widget)
+ {
+
+ // FMIconView (from nautilus) always get sunken
+ if( g_object_is_a( G_OBJECT( widget ), "FMIconView" ) ) return true;
+
+ // other checks require widget to be of type GtkBin
+ if( !GTK_IS_BIN( widget ) ) return false;
+
+ // retrieve child
+ GtkWidget* child( gtk_bin_get_child( GTK_BIN( widget ) ) );
+ if( GTK_IS_TREE_VIEW( child ) || GTK_IS_ICON_VIEW( child ) ) return true;
+ else return false;
+
+ }
+
+ //________________________________________________________
+ bool Gtk::gdk_window_map_to_toplevel( GdkWindow* window, gint* x, gint* y, gint* w, gint* h, bool frame )
+ {
+
+ // always initialize arguments (to invalid values)
+ if( x ) *x=0;
+ if( y ) *y=0;
+ if( w ) *w = -1;
+ if( h ) *h = -1;
+
+ if( !( window && GDK_IS_WINDOW( window ) ) ) return false;
+ if( gdk_window_get_window_type( window ) == GDK_WINDOW_OFFSCREEN ) return false;
+
+ // get window size and height
+ if( frame ) gdk_toplevel_get_frame_size( window, w, h );
+ else gdk_toplevel_get_size( window, w, h );
+ Gtk::gdk_window_get_toplevel_origin( window, x, y );
+ return ((!w) || *w > 0) && ((!h) || *h>0);
+
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_widget_map_to_toplevel( GtkWidget* widget, gint* x, gint* y, gint* w, gint* h, bool frame )
+ {
+
+ // always initialize arguments (to invalid values)
+ if( x ) *x=0;
+ if( y ) *y=0;
+ if( w ) *w = -1;
+ if( h ) *h = -1;
+
+ if( !widget ) return false;
+
+ // get window
+ GdkWindow* window( gtk_widget_get_parent_window( widget ) );
+ if( !( window && GDK_IS_WINDOW( window ) ) ) return false;
+ if( gdk_window_get_window_type( window ) == GDK_WINDOW_OFFSCREEN ) return false;
+
+ if( frame ) gdk_toplevel_get_frame_size( window, w, h );
+ else gdk_toplevel_get_size( window, w, h );
+ int xlocal, ylocal;
+ const bool success( gtk_widget_translate_coordinates( widget, gtk_widget_get_toplevel( widget ), 0, 0, &xlocal, &ylocal ) );
+ if( success )
+ {
+
+ if( x ) *x=xlocal;
+ if( y ) *y=ylocal;
+
+ }
+
+ return success && ((!w) || *w > 0) && ((!h) || *h>0);
+
+ }
+
+ //________________________________________________________
+ bool Gtk::gtk_widget_map_to_parent( GtkWidget* widget, GtkWidget* parent, gint* x, gint* y, gint* w, gint* h )
+ {
+
+ // always initialize arguments (to invalid values)
+ if( x ) *x=0;
+ if( y ) *y=0;
+ if( w ) *w = -1;
+ if( h ) *h = -1;
+
+ if( !( widget && parent ) ) return false;
+
+ const GtkAllocation allocation( gtk_widget_get_allocation( parent ) );
+ if( w ) *w = allocation.width;
+ if( h ) *h = allocation.height;
+
+ int xlocal, ylocal;
+ const bool success( gtk_widget_translate_coordinates( widget, parent, 0, 0, &xlocal, &ylocal ) );
+ if( success )
+ {
+
+ if( x ) *x=xlocal;
+ if( y ) *y=ylocal;
+
+ }
+
+ return success && ((!w) || *w > 0) && ((!h) || *h>0);
+
+ }
+
+ //________________________________________________________
+ bool Gtk::gdk_window_translate_origin( GdkWindow* parent, GdkWindow* child, gint* x, gint* y )
+ {
+ if( x ) *x = 0;
+ if( y ) *y = 0;
+ if( !( parent && child ) ) return false;
+ while( child && GDK_IS_WINDOW( child ) &&
+ child != parent &&
+ gdk_window_get_window_type( child ) == GDK_WINDOW_CHILD )
+ {
+ gint xloc;
+ gint yloc;
+ gdk_window_get_position( child, &xloc, &yloc );
+ if( x ) *x += xloc;
+ if( y ) *y += yloc;
+ child = gdk_window_get_parent( child );
+ }
+
+ return( child == parent );
+
+ }
+
+ //________________________________________________________
+ void Gtk::gdk_toplevel_get_size( GdkWindow* window, gint* w, gint* h )
+ {
+
+ if( !( window && GDK_IS_WINDOW( window ) ) )
+ {
+ if( w ) *w = -1;
+ if( h ) *h = -1;
+ return;
+ }
+
+ if( GdkWindow* topLevel = gdk_window_get_toplevel( window ) )
+ {
+
+ if( w ) *w = gdk_window_get_width( topLevel );
+ if( h ) *h = gdk_window_get_height( topLevel );
+
+ } else {
+
+ if( w ) *w = gdk_window_get_width( window );
+ if( h ) *h = gdk_window_get_height( window );
+
+ }
+
+ return;
+
+ }
+
+ //________________________________________________________
+ void Gtk::gdk_toplevel_get_frame_size( GdkWindow* window, gint* w, gint* h )
+ {
+
+ if( !( window && GDK_IS_WINDOW( window ) ) )
+ {
+ if( w ) *w = -1;
+ if( h ) *h = -1;
+ return;
+ }
+
+ GdkWindow* topLevel = gdk_window_get_toplevel( window );
+ if( topLevel && GDK_IS_WINDOW( topLevel ) )
+ {
+ if( gdk_window_get_window_type( topLevel ) == GDK_WINDOW_OFFSCREEN )
+ {
+
+ if( w ) *w = gdk_window_get_width(topLevel);
+ if( h ) *h = gdk_window_get_height(topLevel);
+
+ } else {
+
+ GdkRectangle rect = {0, 0, -1, -1};
+ gdk_window_get_frame_extents( topLevel, &rect );
+
+ if( w ) *w = rect.width;
+ if( h ) *h = rect.height;
+
+ }
+ }
+
+ return;
+
+ }
+
+ //________________________________________________________
+ void Gtk::gdk_window_get_toplevel_origin( GdkWindow* window, gint* x, gint* y )
+ {
+ if( x ) *x = 0;
+ if( y ) *y = 0;
+ if( !window ) return;
+ while( window && GDK_IS_WINDOW( window ) && gdk_window_get_window_type( window ) == GDK_WINDOW_CHILD )
+ {
+ gint xloc;
+ gint yloc;
+ gdk_window_get_position( window, &xloc, &yloc );
+ if( x ) *x += xloc;
+ if( y ) *y += yloc;
+ window = gdk_window_get_parent( window );
+ }
+
+ return;
+ }
+
+ //___________________________________________________________
+ GdkPixbuf* Gtk::gdk_pixbuf_set_alpha( const GdkPixbuf *pixbuf, double alpha )
+ {
+
+ g_return_val_if_fail( pixbuf != 0L, 0L);
+ g_return_val_if_fail( GDK_IS_PIXBUF( pixbuf ), 0L );
+
+ /* Returns a copy of pixbuf with it's non-completely-transparent pixels to
+ have an alpha level "alpha" of their original value. */
+ GdkPixbuf* target( gdk_pixbuf_add_alpha( pixbuf, false, 0, 0, 0 ) );
+ if( alpha >= 1.0 ) return target;
+ if( alpha < 0 ) alpha = 0;
+
+ const int width( gdk_pixbuf_get_width( target ) );
+ const int height( gdk_pixbuf_get_height( target ) );
+ const int rowstride( gdk_pixbuf_get_rowstride( target ) );
+ unsigned char* data = gdk_pixbuf_get_pixels( target );
+
+ for( int y = 0; y < height; ++y )
+ {
+
+ for( int x = 0; x < width; ++x )
+ {
+ /* The "4" is the number of chars per pixel, in this case, RGBA,
+ the 3 means "skip to the alpha" */
+ unsigned char* current = data + ( y*rowstride ) + ( x*4 ) + 3;
+ *(current) = (unsigned char) ( *( current )*alpha );
+ }
+ }
+
+ return target;
+ }
+
+ //_________________________________________________________
+ bool Gtk::gdk_pixbuf_to_gamma(GdkPixbuf* pixbuf, double value)
+ {
+ if(gdk_pixbuf_get_colorspace(pixbuf)==GDK_COLORSPACE_RGB &&
+ gdk_pixbuf_get_bits_per_sample(pixbuf)==8 &&
+ gdk_pixbuf_get_has_alpha(pixbuf) &&
+ gdk_pixbuf_get_n_channels(pixbuf)==4)
+ {
+ double gamma=1./(2.*value+0.5);
+ unsigned char* data=gdk_pixbuf_get_pixels(pixbuf);
+ const int height=gdk_pixbuf_get_height(pixbuf);
+ const int width=gdk_pixbuf_get_width(pixbuf);
+ const int rowstride=gdk_pixbuf_get_rowstride(pixbuf);
+ for(int x=0;x<width;++x)
+ {
+ for(int y=0; y<height; y++)
+ {
+ unsigned char* p=data + y*rowstride + x*4;
+ *p=(char)(pow((*p/255.),gamma)*255); ++p;
+ *p=(char)(pow((*p/255.),gamma)*255); ++p;
+ *p=(char)(pow((*p/255.),gamma)*255);
+ }
+
+ }
+
+ return true;
+
+ } else return false;
+
+ }
+
+ //___________________________________________________________
+ GdkPixbuf* Gtk::gdk_pixbuf_resize( GdkPixbuf* src, int width, int height )
+ {
+ if( width == gdk_pixbuf_get_width( src ) && height == gdk_pixbuf_get_height( src ) )
+ {
+
+ return static_cast<GdkPixbuf*>(g_object_ref (src));
+
+ } else {
+
+ return gdk_pixbuf_scale_simple( src, width, height, GDK_INTERP_BILINEAR );
+
+ }
+
+ }
+
+ //___________________________________________________________
+ void Gtk::gtk_viewport_get_position( GtkViewport* viewport, gint* x, gint* y )
+ {
+
+ // initialize
+ if( x ) *x = 0;
+ if( y ) *y = 0;
+
+ // get windows and derive offsets
+ gint xBin(0), yBin(0);
+ gdk_window_get_geometry( gtk_viewport_get_bin_window( viewport ), &xBin, &yBin, 0, 0 );
+
+ gint xView(0), yView(0);
+ gdk_window_get_geometry( gtk_viewport_get_view_window( viewport ), &xView, &yView, 0, 0 );
+
+ // calculate offsets
+ if( x ) *x = xView - xBin;
+ if( y ) *y = yView - yBin;
+
+ // also correct from widget thickness
+ GtkStyle* style( gtk_widget_get_style( GTK_WIDGET( viewport ) ) );
+ if( style )
+ {
+ if( x ) *x -= style->xthickness;
+ if( y ) *y -= style->ythickness;
+ }
+
+ return;
+
+ }
+
+ //___________________________________________________________
+ GtkWidget* Gtk::gtk_dialog_find_button(GtkDialog* dialog,gint response_id)
+ {
+
+ // get children of dialog's action area
+ GList* children( gtk_container_get_children( GTK_CONTAINER( gtk_dialog_get_action_area( dialog ) ) ) );
+
+ #if OXYGEN_DEBUG
+ std::cerr << "Oxygen::Gtk::gtk_dialog_find_button - buttons: ";
+ #endif
+
+ for( GList *child = g_list_first( children ); child; child = g_list_next( child ) )
+ {
+
+ // check data
+ if( !GTK_IS_WIDGET( child->data ) ) continue;
+ GtkWidget* childWidget( GTK_WIDGET( child->data ) );
+
+ const gint id( gtk_dialog_get_response_for_widget(dialog, childWidget ) );
+
+ #if OXYGEN_DEBUG
+ std::cerr << Gtk::TypeNames::response( (GtkResponseType) id ) << ", ";
+ #endif
+ if( id == response_id ) return childWidget;
+
+ }
+
+ #if OXYGEN_DEBUG
+ std::cerr << std::endl;
+ #endif
+
+ if( children ) g_list_free( children );
+ return 0L;
+
+ }
+