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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.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "promotiontaskmenu_p.h"
#include "qdesigner_promotiondialog_p.h"
#include "widgetfactory_p.h"
#include "metadatabase_p.h"
#include "widgetdatabase_p.h"
#include "qdesigner_command_p.h"
#include "signalslotdialog_p.h"
#include "qdesigner_objectinspector_p.h"
#include "abstractintrospection_p.h"
#include <QtDesigner/QDesignerFormWindowInterface>
#include <QtDesigner/QDesignerFormWindowCursorInterface>
#include <QtDesigner/QDesignerLanguageExtension>
#include <QtDesigner/QDesignerFormEditorInterface>
#include <QtDesigner/QExtensionManager>
#include <QtGui/QAction>
#include <QtGui/QWidget>
#include <QtGui/QMenu>
#include <QtCore/QSignalMapper>
#include <QtCore/qdebug.h>
QT_BEGIN_NAMESPACE
static QAction *separatorAction(QObject *parent)
{
QAction *rc = new QAction(parent);
rc->setSeparator(true);
return rc;
}
static inline QDesignerLanguageExtension *languageExtension(QDesignerFormEditorInterface *core)
{
return qt_extension<QDesignerLanguageExtension*>(core->extensionManager(), core);
}
namespace qdesigner_internal {
PromotionTaskMenu::PromotionTaskMenu(QWidget *widget,Mode mode, QObject *parent) :
QObject(parent),
m_mode(mode),
m_widget(widget),
m_promotionMapper(0),
m_globalEditAction(new QAction(tr("Promoted widgets..."), this)),
m_EditPromoteToAction(new QAction(tr("Promote to ..."), this)),
m_EditSignalsSlotsAction(new QAction(tr("Change signals/slots..."), this)),
m_promoteLabel(tr("Promote to")),
m_demoteLabel(tr("Demote to %1"))
{
connect(m_globalEditAction, SIGNAL(triggered()), this, SLOT(slotEditPromotedWidgets()));
connect(m_EditPromoteToAction, SIGNAL(triggered()), this, SLOT(slotEditPromoteTo()));
connect(m_EditSignalsSlotsAction, SIGNAL(triggered()), this, SLOT(slotEditSignalsSlots()));
}
PromotionTaskMenu::Mode PromotionTaskMenu::mode() const
{
return m_mode;
}
void PromotionTaskMenu::setMode(Mode m)
{
m_mode = m;
}
void PromotionTaskMenu::setWidget(QWidget *widget)
{
m_widget = widget;
}
void PromotionTaskMenu::setPromoteLabel(const QString &promoteLabel)
{
m_promoteLabel = promoteLabel;
}
void PromotionTaskMenu::setEditPromoteToLabel(const QString &promoteEditLabel)
{
m_EditPromoteToAction->setText(promoteEditLabel);
}
void PromotionTaskMenu::setDemoteLabel(const QString &demoteLabel)
{
m_demoteLabel = demoteLabel;
}
PromotionTaskMenu::PromotionState PromotionTaskMenu::createPromotionActions(QDesignerFormWindowInterface *formWindow)
{
// clear out old
if (!m_promotionActions.empty()) {
qDeleteAll(m_promotionActions);
m_promotionActions.clear();
}
// No promotion of main container
if (formWindow->mainContainer() == m_widget)
return NotApplicable;
// Check for a homogenous selection
const PromotionSelectionList promotionSelection = promotionSelectionList(formWindow);
if (promotionSelection.empty())
return NoHomogenousSelection;
QDesignerFormEditorInterface *core = formWindow->core();
// if it is promoted: demote only.
if (isPromoted(formWindow->core(), m_widget)) {
const QString label = m_demoteLabel.arg( promotedExtends(core , m_widget));
QAction *demoteAction = new QAction(label, this);
connect(demoteAction, SIGNAL(triggered()), this, SLOT(slotDemoteFromCustomWidget()));
m_promotionActions.push_back(demoteAction);
return CanDemote;
}
// figure out candidates
const QString baseClassName = WidgetFactory::classNameOf(core, m_widget);
const WidgetDataBaseItemList candidates = promotionCandidates(core->widgetDataBase(), baseClassName );
if (candidates.empty()) {
// Is this thing promotable at all?
return QDesignerPromotionDialog::baseClassNames(core->promotion()).contains(baseClassName) ? CanPromote : NotApplicable;
}
// Set up a signal mapper to associate class names
if (!m_promotionMapper) {
m_promotionMapper = new QSignalMapper(this);
connect(m_promotionMapper, SIGNAL(mapped(QString)), this, SLOT(slotPromoteToCustomWidget(QString)));
}
QMenu *candidatesMenu = new QMenu();
// Create a sub menu
const WidgetDataBaseItemList::const_iterator cend = candidates.constEnd();
// Set up actions and map class names
for (WidgetDataBaseItemList::const_iterator it = candidates.constBegin(); it != cend; ++it) {
const QString customClassName = (*it)->name();
QAction *action = new QAction((*it)->name(), this);
connect(action, SIGNAL(triggered()), m_promotionMapper, SLOT(map()));
m_promotionMapper->setMapping(action, customClassName);
candidatesMenu->addAction(action);
}
// Sub menu action
QAction *subMenuAction = new QAction(m_promoteLabel, this);
subMenuAction->setMenu(candidatesMenu);
m_promotionActions.push_back(subMenuAction);
return CanPromote;
}
void PromotionTaskMenu::addActions(unsigned separatorFlags, ActionList &actionList)
{
addActions(formWindow(), separatorFlags, actionList);
}
void PromotionTaskMenu::addActions(QDesignerFormWindowInterface *fw, unsigned flags,
ActionList &actionList)
{
Q_ASSERT(m_widget);
const int previousSize = actionList.size();
const PromotionState promotionState = createPromotionActions(fw);
// Promotion candidates/demote
actionList += m_promotionActions;
// Edit action depending on context
switch (promotionState) {
case CanPromote:
actionList += m_EditPromoteToAction;
break;
case CanDemote:
if (!(flags & SuppressGlobalEdit))
actionList += m_globalEditAction;
if (!languageExtension(fw->core())) {
actionList += separatorAction(this);
actionList += m_EditSignalsSlotsAction;
}
break;
default:
if (!(flags & SuppressGlobalEdit))
actionList += m_globalEditAction;
break;
}
// Add separators if required
if (actionList.size() > previousSize) {
if (flags & LeadingSeparator)
actionList.insert(previousSize, separatorAction(this));
if (flags & TrailingSeparator)
actionList += separatorAction(this);
}
}
void PromotionTaskMenu::addActions(QDesignerFormWindowInterface *fw, unsigned flags, QMenu *menu)
{
ActionList actionList;
addActions(fw, flags, actionList);
menu->addActions(actionList);
}
void PromotionTaskMenu::addActions(unsigned flags, QMenu *menu)
{
addActions(formWindow(), flags, menu);
}
void PromotionTaskMenu::promoteTo(QDesignerFormWindowInterface *fw, const QString &customClassName)
{
Q_ASSERT(m_widget);
PromoteToCustomWidgetCommand *cmd = new PromoteToCustomWidgetCommand(fw);
cmd->init(promotionSelectionList(fw), customClassName);
fw->commandHistory()->push(cmd);
}
void PromotionTaskMenu::slotPromoteToCustomWidget(const QString &customClassName)
{
promoteTo(formWindow(), customClassName);
}
void PromotionTaskMenu::slotDemoteFromCustomWidget()
{
QDesignerFormWindowInterface *fw = formWindow();
const PromotionSelectionList promotedWidgets = promotionSelectionList(fw);
Q_ASSERT(!promotedWidgets.empty() && isPromoted(fw->core(), promotedWidgets.front()));
// ### use the undo stack
DemoteFromCustomWidgetCommand *cmd = new DemoteFromCustomWidgetCommand(fw);
cmd->init(promotedWidgets);
fw->commandHistory()->push(cmd);
}
void PromotionTaskMenu::slotEditPromoteTo()
{
Q_ASSERT(m_widget);
// Check whether invoked over a promotable widget
QDesignerFormWindowInterface *fw = formWindow();
QDesignerFormEditorInterface *core = fw->core();
const QString base_class_name = WidgetFactory::classNameOf(core, m_widget);
Q_ASSERT(QDesignerPromotionDialog::baseClassNames(core->promotion()).contains(base_class_name));
// Show over promotable widget
QString promoteToClassName;
QDialog *promotionEditor = 0;
if (QDesignerLanguageExtension *lang = languageExtension(core))
promotionEditor = lang->createPromotionDialog(core, base_class_name, &promoteToClassName, fw);
if (!promotionEditor)
promotionEditor = new QDesignerPromotionDialog(core, fw, base_class_name, &promoteToClassName);
if (promotionEditor->exec() == QDialog::Accepted && !promoteToClassName.isEmpty()) {
promoteTo(fw, promoteToClassName);
}
delete promotionEditor;
}
void PromotionTaskMenu::slotEditPromotedWidgets()
{
// Global context, show over non-promotable widget
QDesignerFormWindowInterface *fw = formWindow();
if (!fw)
return;
editPromotedWidgets(fw->core(), fw);
}
PromotionTaskMenu::PromotionSelectionList PromotionTaskMenu::promotionSelectionList(QDesignerFormWindowInterface *formWindow) const
{
// In multi selection mode, check for a homogenous selection (same class, same promotion state)
// and return the list if this is the case. Also make sure m_widget
// is the last widget in the list so that it is re-selected as the last
// widget by the promotion commands.
PromotionSelectionList rc;
if (m_mode != ModeSingleWidget) {
QDesignerFormEditorInterface *core = formWindow->core();
const QDesignerIntrospectionInterface *intro = core->introspection();
const QString className = intro->metaObject(m_widget)->className();
const bool promoted = isPromoted(formWindow->core(), m_widget);
// Just in case someone plugged an old-style Object Inspector
if (QDesignerObjectInspector *designerObjectInspector = qobject_cast<QDesignerObjectInspector *>(core->objectInspector())) {
Selection s;
designerObjectInspector->getSelection(s);
// Find objects of similar state
const QWidgetList &source = m_mode == ModeManagedMultiSelection ? s.managed : s.unmanaged;
const QWidgetList::const_iterator cend = source.constEnd();
for (QWidgetList::const_iterator it = source.constBegin(); it != cend; ++it) {
QWidget *w = *it;
if (w != m_widget) {
// Selection state mismatch
if (intro->metaObject(w)->className() != className || isPromoted(core, w) != promoted)
return PromotionSelectionList();
rc.push_back(w);
}
}
}
}
rc.push_back(m_widget);
return rc;
}
QDesignerFormWindowInterface *PromotionTaskMenu::formWindow() const
{
// Use the QObject overload of QDesignerFormWindowInterface::findFormWindow since that works
// for QDesignerMenus also.
QObject *o = m_widget;
QDesignerFormWindowInterface *result = QDesignerFormWindowInterface::findFormWindow(o);
Q_ASSERT(result != 0);
return result;
}
void PromotionTaskMenu::editPromotedWidgets(QDesignerFormEditorInterface *core, QWidget* parent) {
QDesignerLanguageExtension *lang = languageExtension(core);
// Show over non-promotable widget
QDialog *promotionEditor = 0;
if (lang)
lang->createPromotionDialog(core, parent);
if (!promotionEditor)
promotionEditor = new QDesignerPromotionDialog(core, parent);
promotionEditor->exec();
delete promotionEditor;
}
void PromotionTaskMenu::slotEditSignalsSlots()
{
QDesignerFormWindowInterface *fw = formWindow();
if (!fw)
return;
SignalSlotDialog::editPromotedClass(fw->core(), m_widget, fw);
}
} // namespace qdesigner_internal
QT_END_NAMESPACE
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