--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/designer/src/lib/shared/promotiontaskmenu.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,361 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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 "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