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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qdesigner_command2_p.h"
#include "formwindowbase_p.h"
#include "layoutinfo_p.h"
#include "qdesigner_command_p.h"
#include "widgetfactory_p.h"
#include "qlayout_widget_p.h"
#include <QtDesigner/QDesignerFormEditorInterface>
#include <QtDesigner/QDesignerMetaDataBaseInterface>
#include <QtGui/QApplication>
#include <QtGui/QLayout>
QT_BEGIN_NAMESPACE
namespace qdesigner_internal {
MorphLayoutCommand::MorphLayoutCommand(QDesignerFormWindowInterface *formWindow) :
QDesignerFormWindowCommand(QString(), formWindow),
m_breakLayoutCommand(new BreakLayoutCommand(formWindow)),
m_layoutCommand(new LayoutCommand(formWindow)),
m_newType(LayoutInfo::VBox),
m_layoutBase(0)
{
}
MorphLayoutCommand::~MorphLayoutCommand()
{
delete m_layoutCommand;
delete m_breakLayoutCommand;
}
bool MorphLayoutCommand::init(QWidget *w, int newType)
{
int oldType;
QDesignerFormWindowInterface *fw = formWindow();
if (!canMorph(fw, w, &oldType) || oldType == newType)
return false;
m_layoutBase = w;
m_newType = newType;
// Find all managed widgets
m_widgets.clear();
const QLayout *layout = LayoutInfo::managedLayout(fw->core(), w);
const int count = layout->count();
for (int i = 0; i < count ; i++) {
if (QWidget *w = layout->itemAt(i)->widget())
if (fw->isManaged(w))
m_widgets.push_back(w);
}
const bool reparentLayoutWidget = false; // leave QLayoutWidget intact
m_breakLayoutCommand->init(m_widgets, m_layoutBase, reparentLayoutWidget);
m_layoutCommand->init(m_layoutBase, m_widgets, static_cast<LayoutInfo::Type>(m_newType), m_layoutBase, reparentLayoutWidget);
setText(formatDescription(core(), m_layoutBase, oldType, newType));
return true;
}
bool MorphLayoutCommand::canMorph(const QDesignerFormWindowInterface *formWindow, QWidget *w, int *ptrToCurrentType)
{
if (ptrToCurrentType)
*ptrToCurrentType = LayoutInfo::NoLayout;
// We want a managed widget or a container page
// with a level-0 managed layout
QDesignerFormEditorInterface *core = formWindow->core();
QLayout *layout = LayoutInfo::managedLayout(core, w);
if (!layout)
return false;
const LayoutInfo::Type type = LayoutInfo::layoutType(core, layout);
if (ptrToCurrentType)
*ptrToCurrentType = type;
switch (type) {
case LayoutInfo::HBox:
case LayoutInfo::VBox:
case LayoutInfo::Grid:
case LayoutInfo::Form:
return true;
break;
case LayoutInfo::NoLayout:
case LayoutInfo::HSplitter: // Nothing doing
case LayoutInfo::VSplitter:
case LayoutInfo::UnknownLayout:
break;
}
return false;
}
void MorphLayoutCommand::redo()
{
m_breakLayoutCommand->redo();
m_layoutCommand->redo();
/* Transfer applicable properties which is a cross-section of the modified
* properties except object name. */
if (const LayoutProperties *properties = m_breakLayoutCommand->layoutProperties()) {
const int oldMask = m_breakLayoutCommand->propertyMask();
QLayout *newLayout = LayoutInfo::managedLayout(core(), m_layoutBase);
const int newMask = LayoutProperties::visibleProperties(newLayout);
const int applicableMask = (oldMask & newMask) & ~LayoutProperties::ObjectNameProperty;
if (applicableMask)
properties->toPropertySheet(core(), newLayout, applicableMask);
}
}
void MorphLayoutCommand::undo()
{
m_layoutCommand->undo();
m_breakLayoutCommand->undo();
}
QString MorphLayoutCommand::formatDescription(QDesignerFormEditorInterface * /* core*/, const QWidget *w, int oldType, int newType)
{
const QString oldName = LayoutInfo::layoutName(static_cast<LayoutInfo::Type>(oldType));
const QString newName = LayoutInfo::layoutName(static_cast<LayoutInfo::Type>(newType));
const QString widgetName = qobject_cast<const QLayoutWidget*>(w) ? w->layout()->objectName() : w->objectName();
return QApplication::translate("Command", "Change layout of '%1' from %2 to %3").arg(widgetName, oldName, newName);
}
} // namespace qdesigner_internal
QT_END_NAMESPACE
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