/*
   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_GTKUTIL_WINDOW_H )
#define INCLUDED_GTKUTIL_WINDOW_H

#include <gtk/gtk.h>
#include <uilib/uilib.h>

#include "debugging/debugging.h"
#include "generic/callback.h"
#include "widget.h"

inline gboolean window_focus_in_clear_focus_widget( GtkWidget* widget, GdkEventKey* event, gpointer data ){
	gtk_window_set_focus( GTK_WINDOW( widget ), NULL );
	return FALSE;
}

inline guint window_connect_focus_in_clear_focus_widget( ui::Window window ){
	return g_signal_connect( G_OBJECT( window ), "focus_in_event", G_CALLBACK( window_focus_in_clear_focus_widget ), NULL );
}


unsigned int connect_floating( ui::Window main_window, ui::Window floating );
ui::Window create_floating_window( const char* title, ui::Window parent );
void destroy_floating_window( ui::Window window );

ui::Window create_persistent_floating_window( const char* title, ui::Window main_window );
gboolean persistent_floating_window_delete( ui::Window floating, GdkEvent *event, ui::Window main_window );

void window_remove_minmax( ui::Window window );

typedef struct _GtkScrolledWindow GtkScrolledWindow;
GtkScrolledWindow* create_scrolled_window( GtkPolicyType hscrollbar_policy, GtkPolicyType vscrollbar_policy, int border = 0 );


struct WindowPosition
{
	int x, y, w, h;

	WindowPosition(){
	}
	WindowPosition( int _x, int _y, int _w, int _h )
		: x( _x ), y( _y ), w( _w ), h( _h ){
	}
};

const WindowPosition c_default_window_pos( 50, 25, 400, 300 );

inline void window_get_position( ui::Window window, WindowPosition& position ){
	ASSERT_MESSAGE( window , "error saving window position" );

	gtk_window_get_position( window, &position.x, &position.y );
	gtk_window_get_size( window, &position.w, &position.h );
}

inline void window_set_position( ui::Window window, const WindowPosition& position ){
	gtk_window_set_gravity( window, GDK_GRAVITY_STATIC );

	GdkScreen* screen = gdk_screen_get_default();
	if ( position.x < 0
		 || position.y < 0
		 || position.x > gdk_screen_get_width( screen )
		 || position.y > gdk_screen_get_height( screen ) ) {
		gtk_window_set_position( window, GTK_WIN_POS_CENTER_ON_PARENT );
	}
	else
	{
		gtk_window_move( window, position.x, position.y );
	}

	gtk_window_set_default_size( window, position.w, position.h );
}

inline void WindowPosition_Parse( WindowPosition& position, const char* value ){
	if ( sscanf( value, "%d %d %d %d", &position.x, &position.y, &position.w, &position.h ) != 4 ) {
		position = WindowPosition( c_default_window_pos ); // ensure sane default value for window position
	}
}
typedef ReferenceCaller1<WindowPosition, const char*, WindowPosition_Parse> WindowPositionImportStringCaller;

inline void WindowPosition_Write( const WindowPosition& position, const StringImportCallback& importCallback ){
	char buffer[64];
	sprintf( buffer, "%d %d %d %d", position.x, position.y, position.w, position.h );
	importCallback( buffer );
}
typedef ConstReferenceCaller1<WindowPosition, const StringImportCallback&, WindowPosition_Write> WindowPositionExportStringCaller;



class WindowPositionTracker
{
WindowPosition m_position;

static gboolean configure( GtkWidget* widget, GdkEventConfigure *event, WindowPositionTracker* self ){
	self->m_position = WindowPosition( event->x, event->y, event->width, event->height );
	return FALSE;
}

public:
WindowPositionTracker()
	: m_position( c_default_window_pos ){
}

void sync( ui::Window window ){
	window_set_position( window, m_position );
}

void connect( ui::Window window ){
	sync( window );
	g_signal_connect( G_OBJECT( window ), "configure_event", G_CALLBACK( configure ), this );
}

const WindowPosition& getPosition() const {
	return m_position;
}

//hack
void setPosition( const WindowPosition& position ){
	m_position = position;
}
};


inline void WindowPositionTracker_importString( WindowPositionTracker& self, const char* value ){
	WindowPosition position;
	WindowPosition_Parse( position, value );
	self.setPosition( position );
}
typedef ReferenceCaller1<WindowPositionTracker, const char*, WindowPositionTracker_importString> WindowPositionTrackerImportStringCaller;

inline void WindowPositionTracker_exportString( const WindowPositionTracker& self, const StringImportCallback& importer ){
	WindowPosition_Write( self.getPosition(), importer );
}
typedef ConstReferenceCaller1<WindowPositionTracker, const StringImportCallback&, WindowPositionTracker_exportString> WindowPositionTrackerExportStringCaller;



#endif