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#ifndef tdegtk_tabwidgetdata_h
#define tdegtk_tabwidgetdata_h
/*
* this file was largely taken from the oxygen gtk engine
* Copyright (c) 2010 Hugo Pereira Da Costa <hugo@oxygen-icons.org>
*
* 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-signals.h"
#include <gtk/gtk.h>
#include <vector>
#include <map>
//! detects and stores tab widget hovered tab
class TabWidgetData
{
public:
//! constructor
TabWidgetData( void ):
_target(0L),
_hoveredTab(-1),
_dragInProgress( false ),
_dirty( false )
{}
//! destructor
virtual ~TabWidgetData( void )
{ disconnect( _target ); }
//! setup connections
void connect( GtkWidget* );
//! disconnect
void disconnect( GtkWidget* );
//!@name modifiers
//@{
//! update tab rectangle
/* this is used to decide when a tab is hovered or not */
void updateTabRect( GtkWidget*, int, const GdkRectangle& );
//! update hovered tab
void updateHoveredTab( GtkWidget* = 0L );
//! true when drag is in progress
void setDragInProgress( bool value )
{ _dragInProgress = value; }
//! toggle dirty state
void toggleDirty( void )
{ setDirty( !isDirty() ); }
//! mark as dirty
void setDirty( bool );
//@}
//@name accessors
//@{
//! true if hovered
int hoveredTab( void ) const
{ return _hoveredTab; }
//! true when drag is in progress
bool dragInProgress( void ) const
{ return _dragInProgress; }
//! true if is dirty
bool isDirty( void ) const
{ return _dirty; }
//! returns true if provided point is in one tab of the widget
bool isInTab( int x, int y ) const;
//@]
protected:
//! set current tab
void setHoveredTab( GtkWidget*, int );
//! child registration
//@{
void updateRegisteredChildren( GtkWidget* = 0L );
void registerChild( GtkWidget* );
void unregisterChild( GtkWidget* );
//@}
//!@name static callbacks
//@{
static gboolean motionNotifyEvent( GtkWidget*, GdkEventMotion*, gpointer );
static gboolean leaveNotifyEvent( GtkWidget*, GdkEventCrossing*, gpointer );
static void pageAddedEvent( GtkNotebook*, GtkWidget*, guint, gpointer );
static gboolean childDestroyNotifyEvent( GtkWidget*, gpointer );
static gboolean childCrossingNotifyEvent( GtkWidget*, GdkEventCrossing*, gpointer );
static void childAddedEvent( GtkContainer*, GtkWidget*, gpointer );
//@}
private:
//! default tabRect size
GdkRectangle defaultRect( void ) const
{
GdkRectangle out = {0, 0, -1, -1};
return out;
}
//! target widget
GtkWidget* _target;
//!@name callbacks IDs
//@{
Signal _motionId;
Signal _leaveId;
Signal _pageAddedId;
//@}
//! index of currently hovered tab
int _hoveredTab;
//! true when there is a drag in progress
bool _dragInProgress;
//! true when tabbar is dirty
/*! a repaint is triggered of the full tabbar when set to true.
This forces the tabbar base to be redrawn event if the selected tab
has not been primarily damaged */
bool _dirty;
//! store rectangles matching tabs
typedef std::vector<GdkRectangle> RectangleList;
RectangleList _tabRects;
//! child data
/*!
one must keep track of the tab widgets children enter/leave event
to properly update tab hover because some tabs have embedded children.
This is notably the case for gimp, nautilus (in tabbed mode), etc.
*/
class ChildData
{
public:
//! constructor
ChildData( void )
{}
//! destructor
virtual ~ChildData( void )
{}
//! disconnect all signals
void disconnect( void );
Signal _destroyId;
Signal _addId;
Signal _enterId;
Signal _leaveId;
};
//! map registered children and corresponding data
typedef std::map<GtkWidget*, ChildData> ChildDataMap;
ChildDataMap _childrenData;
};
#endif
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