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/* This file is part of the KDE project
Copyright (C) 2004 Cedric Pasteur <cedric.pasteur@free.fr>
Copyright (C) 2007 Jaroslaw Staniek <js@iidea.pl>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef FORMEDITORUTILS_H
#define FORMEDITORUTILS_H
#include <tqptrlist.h>
#include <tqtabbar.h>
#include <tqtabwidget.h>
//! @todo replace TQTabWidget by KTabWidget after the bug with & is fixed:
#define TabWidgetBase TQTabWidget
//#define USE_KTabWidget //todo: uncomment
namespace KFormDesigner {
class Form;
/*! \return parent object of \a o that inherits \a className or NULL if no such parent
If the parent is found, \a prevPrev is set to a child of child of the parent,
what for TabWidget means the page widget. */
template<class type>
type* findParent(TQObject* o, const char* className, TQObject* &prevPrev)
{
if (!o || !className || className[0]=='\0')
return 0;
TQObject *prev = TQT_TQOBJECT(o);
while ( ((o=TQT_TQOBJECT(o)->parent())) && !TQT_TQOBJECT(o)->inherits(className) ) {
prevPrev = prev;
prev = TQT_TQOBJECT(o);
}
return static_cast<type*>(o);
}
//! A tab widget providing information about height of the tab bar.
class KFORMEDITOR_EXPORT TabWidget : public TabWidgetBase
{
TQ_OBJECT
public:
TabWidget(TQWidget *parent, const char *name)
: TabWidgetBase(parent, name) {}
virtual ~TabWidget() {}
int tabBarHeight() const { return tabBar()->height(); }
};
//! @short A list of widget pointers.
typedef TQPtrList<TQWidget> WidgetList;
//! @short An iterator for WidgetList.
typedef TQPtrListIterator<TQWidget> WidgetListIterator;
//! @short A helper for sorting widgets horizontally
class HorWidgetList : public WidgetList
{
public:
HorWidgetList(TQWidget *topLevelWidget);
virtual ~HorWidgetList();
protected:
virtual int compareItems(TQPtrCollection::Item item1, TQPtrCollection::Item item2);
TQWidget *m_topLevelWidget;
};
//! @short A helper for sorting widgets vertically
class VerWidgetList : public WidgetList
{
public:
VerWidgetList(TQWidget *topLevelWidget);
virtual ~VerWidgetList();
protected:
virtual int compareItems(TQPtrCollection::Item item1, TQPtrCollection::Item item2);
TQWidget *m_topLevelWidget;
};
/*! This function is used to remove all the child widgets from a list, and
keep only the "toplevel" ones. */
KFORMEDITOR_EXPORT void removeChildrenFromList(WidgetList &list);
/*! This helper function install an event filter on \a object and all of its
children, directed to \a container.
This is necessary to filter events for composed widgets. */
KFORMEDITOR_EXPORT void installRecursiveEventFilter(TQObject *object, TQObject *container);
/*! This helper function removes an event filter installed before
on \a object and all of its children.
This is necessary to filter events for composed widgets. */
KFORMEDITOR_EXPORT void removeRecursiveEventFilter(TQObject *object, TQObject *container);
KFORMEDITOR_EXPORT void setRecursiveCursor(TQWidget *w, Form *form);
/*! \return the size of \a w children. This can be used eg to get widget's sizeHint. */
KFORMEDITOR_EXPORT TQSize getSizeFromChildren(TQWidget *widget, const char *inheritClass="TQWidget");
}
#endif
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