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/* ====================================================================
* Copyright (c) 2007-2008 Martin Hauner
* http://subcommander.tigris.org
*
* Subcommander is licensed as described in the file doc/COPYING, which
* you should have received as part of this distribution.
* ====================================================================
*/
// sc
#include "Splitter.h"
#include "util/String.h"
// qt
#include <QtCore/QEvent>
#include <QtGui/QSplitterHandle>
#include <QtGui/QMoveEvent>
#include <QtGui/QShowEvent>
/** Initial @a position of SplitterHandle. */
const int UnsetPos = -1;
/**
* Custom splitter handle for @a Splitter widget. Hides or shows the @a First or
* @a Last widget when double clicking on the handle.
*/
class SplitterHandle : public QSplitterHandle
{
typedef QSplitterHandle super;
public:
SplitterHandle( QSplitter* parent, Qt::Orientation orientation, Splitter::Hide hide )
: super(orientation,parent), _hide(hide), _pos(UnsetPos), _visible(true)
{
}
void mouseDoubleClickEvent( QMouseEvent* e )
{
if( _visible )
{
setPos(getCurrentPos());
moveSplitter(getHidePos());
}
else
moveSplitter(getPos());
_visible = !_visible;
}
/**
* Get the hide position respecting the @a orientation and @c Splitter::Hide.
*/
int getHidePos() const
{
if( _hide == Splitter::First )
{
return 0;
}
else // Splitter::Last
{
return getParentSize() - getSize();
}
}
/**
* Get the size of the handle respecting the @a orientation. Ie. it returns
* @c width() for @a horizontal and @c height() for @a vertical layout.
*/
int getSize() const
{
if( orientation() == Qt::Vertical )
{
return height();
}
else // Qt::Horizontal
{
return width();
}
}
/**
* Get the handle position respecting the @a orientation. Ie. it returns
* @c x() for @a horizontal and @c y() for @a vertical layout.
*/
int getCurrentPos() const
{
if( orientation() == Qt::Vertical )
{
return y();
}
else // Qt::Horizontal
{
return x();
}
}
/** Set the click position. */
void setPos( int pos )
{
_pos = pos;
}
/** Get the click position. */
int getPos() const
{
return _pos;
}
/**
* Get the size of the handles parent respecting the @a orientation. Ie.
* it returns @c width() for @a horizontal and @c height() for @a vertical
* layout.
*/
int getParentSize() const
{
if( orientation() == Qt::Vertical )
{
return ((QWidget*)parent())->height();
}
else // Qt::Horizontal
{
return ((QWidget*)parent())->width();
}
}
private:
Splitter::Hide _hide;
int _pos; ///< visible click position
bool _visible; ///< splitter content is visible
};
///////////////////////////////////////////////////////////////////////////////
Splitter::Splitter( QWidget* parent, Hide hide ) : super(parent), _hide(hide),
_handle(NULL)
{
}
Splitter::Splitter( QWidget* parent, Qt::Orientation orientation, Hide hide )
: super(orientation,parent), _hide(hide), _handle(NULL)
{
}
QSplitterHandle* Splitter::createHandle()
{
if( count() == 1 )
{
_handle = new SplitterHandle( this, orientation(), _hide );
return _handle;
}
else
{
return new QSplitterHandle( orientation(), this );
}
}
void Splitter::showHide( bool b )
{
// assumes two widget for now...
QList<int> s;
if(b)
s << length()/2 << length()/2;
else
s << (_hide == First ? 0 : length())
<< (_hide == First ? length() : 0);
setSizes(s);
}
void Splitter::enableHide( bool b )
{
if( _hide == First )
{
widget(0)->setEnabled(b);
}
else
{
widget(count()-1)->setEnabled(b);
}
_handle->setEnabled(b);
}
int Splitter::length()
{
if( orientation() == Qt::Vertical )
{
return height();
}
else // Qt::Horizontal
{
return width();
}
}
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