File indexing completed on 2024-04-28 05:32:09

 /*
     this file is part of the oxygen gtk engine
     SPDX-FileCopyrightText: 2010 Hugo Pereira Da Costa <hugo.pereira@free.fr>
     SPDX-FileCopyrightText: 2010 Ruslan Kabatsayev <b7.10110111@gmail.com>
 
     Hook-setup code provided by Ruslan
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "oxygenargbhelper.h"
 #include "oxygengtktypenames.h"
 #include "config.h"
 
 #include <gtk/gtk.h>
 
 #include <cassert>
 #include <iostream>
 
 namespace Oxygen
 {
 
     //__________________________________________________________________
     ArgbHelper::ArgbHelper( void ):
         _hooksInitialized( false )
     {
         #if OXYGEN_DEBUG
         std::cerr << "Oxygen::ArgbHelper::ArgbHelper" << std::endl;
         #endif
     }
 
 
     //_____________________________________________________
     ArgbHelper::~ArgbHelper( void )
     {
 
         #if OXYGEN_DEBUG
         std::cerr << "Oxygen::ArgbHelper::~ArgbHelper" << std::endl;
         #endif
 
         // disconnect hooks
         _styleSetHook.disconnect();
 
     }
 
     //_____________________________________________________
     void ArgbHelper::initializeHooks( void )
     {
 
         if( _hooksInitialized ) return;
 
         // colormap hooks
         if( _styleSetHook.connect( "style-set", (GSignalEmissionHook)styleSetHook, 0L ) )
         { _hooksInitialized = true; }
 
         return;
 
     }
 
     //_____________________________________________________
     gboolean ArgbHelper::styleSetHook( GSignalInvocationHint*, guint, const GValue* params, gpointer )
     {
 
         // get widget from params
         GtkWidget* widget( GTK_WIDGET( g_value_get_object( params ) ) );
 
         // check type
         if( !GTK_IS_WIDGET( widget ) ) return FALSE;
         if( !GTK_IS_WINDOW( widget ) ) return TRUE;
 
         // make sure widget has not been realized already
         #if GTK_CHECK_VERSION(2, 20, 0)
         if( gtk_widget_get_realized( widget ) ) return TRUE;
         #else
         if( GTK_WIDGET_REALIZED( widget ) ) return TRUE;
         #endif
 
         // screen
         GdkScreen* screen = gdk_screen_get_default();
         if( !screen ) return TRUE;
 
         // colormap
         GdkColormap* colormap(gdk_screen_get_rgba_colormap( screen ) );
         if( !colormap ) return TRUE;
 
         // hint
         GtkWindow* window( GTK_WINDOW( widget ) );
         GdkWindowTypeHint hint = gtk_window_get_type_hint( window );
         if(
             hint == GDK_WINDOW_TYPE_HINT_MENU ||
             hint == GDK_WINDOW_TYPE_HINT_DROPDOWN_MENU ||
             hint == GDK_WINDOW_TYPE_HINT_POPUP_MENU ||
             hint == GDK_WINDOW_TYPE_HINT_TOOLTIP ||
             hint == GDK_WINDOW_TYPE_HINT_COMBO
             )
         {
 
             #if OXYGEN_DEBUG
             std::cerr << "Oxygen::ArgbHelper::styleSetHook - "
                 << widget << " (" << G_OBJECT_TYPE_NAME( widget ) << ")"
                 << " hint: " << Gtk::TypeNames::windowTypeHint( hint )
                 << std::endl;
             #endif
 
             // assign argb colormap to widget
             gtk_widget_set_colormap( widget, colormap );
 
         }
 
         return TRUE;
 
     }
 
 }