/**************************************************************************** ** ** Copyright (C) 2010 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 "button_taskmenu.h" #include "inplace_editor.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include Q_DECLARE_METATYPE(QButtonGroup*) QT_BEGIN_NAMESPACE namespace qdesigner_internal { enum { debugButtonMenu = 0 }; typedef QList ButtonList; typedef QList ButtonGroupList; // ButtonGroupCommand: Base for commands handling button groups and button lists // addButtonsToGroup() and removeButtonsFromGroup() are low-level helpers for // adding/removing members to/from existing groups. // // createButtonGroup()/breakButtonGroup() create and remove the groups from scratch. // When using them in a command, the command must be executed within // a macro since it makes the form emit objectRemoved() which might cause other components // to add commands (for example, removal of signals and slots) class ButtonGroupCommand : public QDesignerFormWindowCommand { protected: ButtonGroupCommand(const QString &description, QDesignerFormWindowInterface *formWindow); void initialize(const ButtonList &bl, QButtonGroup *buttonGroup); // Helper: Add the buttons to the group void addButtonsToGroup(); // Helper; Remove the buttons void removeButtonsFromGroup(); // Create the button group in Designer void createButtonGroup(); // Remove the button group from Designer void breakButtonGroup(); public: static QString nameList(const ButtonList& bl); static ButtonGroupList managedButtonGroups(const QDesignerFormWindowInterface *formWindow); private: ButtonList m_buttonList; QButtonGroup *m_buttonGroup; }; ButtonGroupCommand::ButtonGroupCommand(const QString &description, QDesignerFormWindowInterface *formWindow) : QDesignerFormWindowCommand(description, formWindow), m_buttonGroup(0) { } void ButtonGroupCommand::initialize(const ButtonList &bl, QButtonGroup *buttonGroup) { m_buttonList = bl; m_buttonGroup = buttonGroup; } void ButtonGroupCommand::addButtonsToGroup() { if (debugButtonMenu) qDebug() << "Adding " << m_buttonList << " to " << m_buttonGroup; const ButtonList::const_iterator cend = m_buttonList.constEnd(); for (ButtonList::const_iterator it = m_buttonList.constBegin(); it != cend; ++it) m_buttonGroup->addButton(*it); } void ButtonGroupCommand::removeButtonsFromGroup() { if (debugButtonMenu) qDebug() << "Removing " << m_buttonList << " from " << m_buttonGroup; const ButtonList::const_iterator cend = m_buttonList.constEnd(); for (ButtonList::const_iterator it = m_buttonList.constBegin(); it != cend; ++it) m_buttonGroup->removeButton(*it); } void ButtonGroupCommand::createButtonGroup() { if (debugButtonMenu) qDebug() << "Creating " << m_buttonGroup << " from " << m_buttonList; QDesignerFormWindowInterface *fw = formWindow(); QDesignerFormEditorInterface *core = fw->core(); core->metaDataBase()->add(m_buttonGroup); addButtonsToGroup(); // Make button group visible core->objectInspector()->setFormWindow(fw); } void ButtonGroupCommand::breakButtonGroup() { if (debugButtonMenu) qDebug() << "Removing " << m_buttonGroup << " consisting of " << m_buttonList; QDesignerFormWindowInterface *fw = formWindow(); QDesignerFormEditorInterface *core = fw->core(); // Button group was selected, that is, break was invoked via its context menu. Remove it from property editor, select the buttons if (core->propertyEditor()->object() == m_buttonGroup) { fw->clearSelection(false); const ButtonList::const_iterator cend = m_buttonList.constEnd(); for (ButtonList::const_iterator it = m_buttonList.constBegin(); it != cend; ++it) fw->selectWidget(*it, true); } // Now remove and refresh object inspector removeButtonsFromGroup(); // Notify components (for example, signal slot editor) if (qdesigner_internal::FormWindowBase *fwb = qobject_cast(fw)) fwb->emitObjectRemoved(m_buttonGroup); core->metaDataBase()->remove(m_buttonGroup); core->objectInspector()->setFormWindow(fw); } QString ButtonGroupCommand::nameList(const ButtonList& bl) { QString rc; const QChar quote = QLatin1Char('\''); const QString separator = QLatin1String(", "); const int size = bl.size(); for (int i = 0; i < size; i++) { if (i) rc += separator; rc += quote; rc += bl[i]->objectName(); rc += quote; } return rc; } ButtonGroupList ButtonGroupCommand::managedButtonGroups(const QDesignerFormWindowInterface *formWindow) { const QDesignerMetaDataBaseInterface *mdb = formWindow->core()->metaDataBase(); ButtonGroupList bl; // Check 1st order children for managed button groups const QObjectList children = formWindow->mainContainer()->children(); const QObjectList::const_iterator cend = children.constEnd(); for (QObjectList::const_iterator it = children.constBegin(); it != cend; ++it) { if (!(*it)->isWidgetType()) if (QButtonGroup *bg = qobject_cast(*it)) if (mdb->item(bg)) bl.push_back(bg); } return bl; } // --------------- CreateButtonGroupCommand // This command might be executed in a macro with a remove // command to move buttons from one group to a new one. class CreateButtonGroupCommand : public ButtonGroupCommand { public: CreateButtonGroupCommand(QDesignerFormWindowInterface *formWindow); bool init(const ButtonList &bl); virtual void undo() { breakButtonGroup(); } virtual void redo() { createButtonGroup(); } }; CreateButtonGroupCommand::CreateButtonGroupCommand(QDesignerFormWindowInterface *formWindow) : ButtonGroupCommand(QApplication::translate("Command", "Create button group"), formWindow) { } bool CreateButtonGroupCommand::init(const ButtonList &bl) { if (bl.empty()) return false; QDesignerFormWindowInterface *fw = formWindow(); QButtonGroup *buttonGroup = new QButtonGroup(fw->mainContainer()); buttonGroup->setObjectName(QLatin1String("buttonGroup")); fw->ensureUniqueObjectName(buttonGroup); initialize(bl, buttonGroup); return true; } // --------------- BreakButtonGroupCommand class BreakButtonGroupCommand : public ButtonGroupCommand { public: BreakButtonGroupCommand(QDesignerFormWindowInterface *formWindow); bool init(QButtonGroup *group); virtual void undo() { createButtonGroup(); } virtual void redo() { breakButtonGroup(); } }; BreakButtonGroupCommand::BreakButtonGroupCommand(QDesignerFormWindowInterface *formWindow) : ButtonGroupCommand(QApplication::translate("Command", "Break button group"), formWindow) { } bool BreakButtonGroupCommand::init(QButtonGroup *group) { if (!group) return false; initialize(group->buttons(), group); setText(QApplication::translate("Command", "Break button group '%1'").arg(group->objectName())); return true; } // --------------- AddButtonsToGroupCommand // This command might be executed in a macro with a remove // command to move buttons from one group to a new one. class AddButtonsToGroupCommand : public ButtonGroupCommand { public: AddButtonsToGroupCommand(QDesignerFormWindowInterface *formWindow); void init(const ButtonList &bl, QButtonGroup *group); virtual void undo() { removeButtonsFromGroup(); } virtual void redo() { addButtonsToGroup(); } }; AddButtonsToGroupCommand::AddButtonsToGroupCommand(QDesignerFormWindowInterface *formWindow) : ButtonGroupCommand(QApplication::translate("Command", "Add buttons to group"), formWindow) { } void AddButtonsToGroupCommand::init(const ButtonList &bl, QButtonGroup *group) { initialize(bl, group); //: Command description for adding buttons to a QButtonGroup setText(QApplication::translate("Command", "Add '%1' to '%2'").arg(nameList(bl), group->objectName())); } //-------------------- RemoveButtonsFromGroupCommand class RemoveButtonsFromGroupCommand : public ButtonGroupCommand { public: RemoveButtonsFromGroupCommand(QDesignerFormWindowInterface *formWindow); bool init(const ButtonList &bl); virtual void undo() { addButtonsToGroup(); } virtual void redo() { removeButtonsFromGroup(); } }; RemoveButtonsFromGroupCommand::RemoveButtonsFromGroupCommand(QDesignerFormWindowInterface *formWindow) : ButtonGroupCommand(QApplication::translate("Command", "Remove buttons from group"), formWindow) { } bool RemoveButtonsFromGroupCommand::init(const ButtonList &bl) { if (bl.empty()) return false; QButtonGroup *group = bl.front()->group(); if (!group) return false; if (bl.size() >= group->buttons().size()) return false; initialize(bl, group); //: Command description for removing buttons from a QButtonGroup setText(QApplication::translate("Command", "Remove '%1' from '%2'").arg(nameList(bl), group->objectName())); return true; } // -------- ButtonGroupMenu ButtonGroupMenu::ButtonGroupMenu(QObject *parent) : QObject(parent), m_selectGroupAction(new QAction(tr("Select members"), this)), m_breakGroupAction(new QAction(tr("Break"), this)), m_formWindow(0), m_buttonGroup(0), m_currentButton(0) { connect(m_breakGroupAction, SIGNAL(triggered()), this, SLOT(breakGroup())); connect(m_selectGroupAction, SIGNAL(triggered()), this, SLOT(selectGroup())); } void ButtonGroupMenu::initialize(QDesignerFormWindowInterface *formWindow, QButtonGroup *buttonGroup, QAbstractButton *currentButton) { m_buttonGroup = buttonGroup; m_currentButton = currentButton; m_formWindow = formWindow; Q_ASSERT(m_formWindow); const bool canBreak = buttonGroup != 0; m_breakGroupAction->setEnabled(canBreak); m_selectGroupAction->setEnabled(canBreak); } void ButtonGroupMenu::selectGroup() { // Select and make current button "current" again by selecting it last (if there is any) const ButtonList buttons = m_buttonGroup->buttons(); m_formWindow->clearSelection(false); const ButtonList::const_iterator cend = buttons.constEnd(); for (ButtonList::const_iterator it = buttons.constBegin(); it != cend; ++it) if (*it != m_currentButton) m_formWindow->selectWidget(*it, true); if (m_currentButton) m_formWindow->selectWidget(m_currentButton, true); } void ButtonGroupMenu::breakGroup() { BreakButtonGroupCommand *cmd = new BreakButtonGroupCommand(m_formWindow); if (cmd->init(m_buttonGroup)) { // Need a macro since the command might trigger additional commands QUndoStack *history = m_formWindow->commandHistory(); history->beginMacro(cmd->text()); history->push(cmd); history->endMacro(); } else { qWarning("** WARNING Failed to initialize BreakButtonGroupCommand!"); delete cmd; } } // ButtonGroupTaskMenu ButtonGroupTaskMenu::ButtonGroupTaskMenu(QButtonGroup *buttonGroup, QObject *parent) : QObject(parent), m_buttonGroup(buttonGroup) { m_taskActions.push_back(m_menu.breakGroupAction()); m_taskActions.push_back(m_menu.selectGroupAction()); } QAction *ButtonGroupTaskMenu::preferredEditAction() const { return m_menu.selectGroupAction(); } QList ButtonGroupTaskMenu::taskActions() const { m_menu.initialize(QDesignerFormWindowInterface::findFormWindow(m_buttonGroup), m_buttonGroup); return m_taskActions; } // -------- Text area editor class ButtonTextTaskMenuInlineEditor : public TaskMenuInlineEditor { public: ButtonTextTaskMenuInlineEditor(QAbstractButton *button, QObject *parent); protected: virtual QRect editRectangle() const; }; ButtonTextTaskMenuInlineEditor::ButtonTextTaskMenuInlineEditor(QAbstractButton *button, QObject *parent) : TaskMenuInlineEditor(button, ValidationMultiLine, QLatin1String("text"), parent) { } QRect ButtonTextTaskMenuInlineEditor::editRectangle() const { QWidget *w = widget(); QStyleOptionButton opt; opt.init(w); return w->style()->subElementRect(QStyle::SE_PushButtonContents, &opt, w); } // -------- Command link button description editor class LinkDescriptionTaskMenuInlineEditor : public TaskMenuInlineEditor { public: LinkDescriptionTaskMenuInlineEditor(QAbstractButton *button, QObject *parent); protected: virtual QRect editRectangle() const; }; LinkDescriptionTaskMenuInlineEditor::LinkDescriptionTaskMenuInlineEditor(QAbstractButton *button, QObject *parent) : TaskMenuInlineEditor(button, ValidationMultiLine, QLatin1String("description"), parent) { } QRect LinkDescriptionTaskMenuInlineEditor::editRectangle() const { QWidget *w = widget(); // TODO: What is the exact description area? QStyleOptionButton opt; opt.init(w); return w->style()->subElementRect(QStyle::SE_PushButtonContents, &opt, w); } // ----------- ButtonTaskMenu: ButtonTaskMenu::ButtonTaskMenu(QAbstractButton *button, QObject *parent) : QDesignerTaskMenu(button, parent), m_assignGroupSubMenu(new QMenu), m_assignActionGroup(0), m_assignToGroupSubMenuAction(new QAction(tr("Assign to button group"), this)), m_currentGroupSubMenu(new QMenu), m_currentGroupSubMenuAction(new QAction(tr("Button group"), this)), m_createGroupAction(new QAction(tr("New button group"), this)), m_preferredEditAction(new QAction(tr("Change text..."), this)), m_removeFromGroupAction(new QAction(tr("None"), this)) { connect(m_createGroupAction, SIGNAL(triggered()), this, SLOT(createGroup())); TaskMenuInlineEditor *textEditor = new ButtonTextTaskMenuInlineEditor(button, this); connect(m_preferredEditAction, SIGNAL(triggered()), textEditor, SLOT(editText())); connect(m_removeFromGroupAction, SIGNAL(triggered()), this, SLOT(removeFromGroup())); m_assignToGroupSubMenuAction->setMenu(m_assignGroupSubMenu); m_currentGroupSubMenu->addAction(m_groupMenu.breakGroupAction()); m_currentGroupSubMenu->addAction(m_groupMenu.selectGroupAction()); m_currentGroupSubMenuAction->setMenu(m_currentGroupSubMenu); m_taskActions.append(m_preferredEditAction); m_taskActions.append(m_assignToGroupSubMenuAction); m_taskActions.append(m_currentGroupSubMenuAction); m_taskActions.append(createSeparator()); } ButtonTaskMenu::~ButtonTaskMenu() { delete m_assignGroupSubMenu; delete m_currentGroupSubMenu; } QAction *ButtonTaskMenu::preferredEditAction() const { return m_preferredEditAction; } bool ButtonTaskMenu::refreshAssignMenu(const QDesignerFormWindowInterface *fw, int buttonCount, SelectionType st, QButtonGroup *currentGroup) { // clear if (m_assignActionGroup) { delete m_assignActionGroup; m_assignActionGroup = 0; } m_assignGroupSubMenu->clear(); if (st == OtherSelection) return false; // Assign to new: Need several const bool canAssignToNewGroup = buttonCount > 1; m_createGroupAction->setEnabled(canAssignToNewGroup); if (canAssignToNewGroup) m_assignGroupSubMenu->addAction(m_createGroupAction); // Assign to other const ButtonGroupList bl = ButtonGroupCommand::managedButtonGroups(fw); // Groups: Any groups to add to except the current? const int groupCount = bl.size(); const bool hasAddGroups = groupCount > 1 || (groupCount == 1 && !bl.contains(currentGroup)); if (hasAddGroups) { if (!m_assignGroupSubMenu->isEmpty()) m_assignGroupSubMenu->addSeparator(); // Create a new action group m_assignActionGroup = new QActionGroup(this); connect(m_assignActionGroup, SIGNAL(triggered(QAction*)), this, SLOT(addToGroup(QAction*))); const ButtonGroupList::const_iterator cend = bl.constEnd(); for (ButtonGroupList::const_iterator it = bl.constBegin(); it != cend; ++it) { QButtonGroup *bg = *it; if (*it != currentGroup) { QAction *a = new QAction(bg->objectName(), m_assignGroupSubMenu); a->setData(qVariantFromValue(bg)); m_assignActionGroup->addAction(a); m_assignGroupSubMenu->addAction(a); } } } // Can remove: A homogenous selection of another group that does not completely break it. const bool canRemoveFromGroup = st == GroupedButtonSelection; m_removeFromGroupAction->setEnabled(canRemoveFromGroup); if (canRemoveFromGroup) { if (!m_assignGroupSubMenu->isEmpty()) m_assignGroupSubMenu->addSeparator(); m_assignGroupSubMenu->addAction(m_removeFromGroupAction); } return !m_assignGroupSubMenu->isEmpty(); } QList ButtonTaskMenu::taskActions() const { ButtonTaskMenu *ncThis = const_cast(this); QButtonGroup *buttonGroup; QDesignerFormWindowInterface *fw = formWindow(); const SelectionType st = selectionType(fw->cursor(), &buttonGroup); m_groupMenu.initialize(fw, buttonGroup, button()); const bool hasAssignOptions = ncThis->refreshAssignMenu(fw, fw->cursor()->selectedWidgetCount(), st, buttonGroup); m_assignToGroupSubMenuAction->setVisible(hasAssignOptions); // add/remove switch (st) { case UngroupedButtonSelection: case OtherSelection: m_currentGroupSubMenuAction->setVisible(false); break; case GroupedButtonSelection: m_currentGroupSubMenuAction->setText(tr("Button group '%1'").arg(buttonGroup->objectName())); m_currentGroupSubMenuAction->setVisible(true); break; } return m_taskActions + QDesignerTaskMenu::taskActions(); } void ButtonTaskMenu::insertAction(int index, QAction *a) { m_taskActions.insert(index, a); } /* Create a button list from the cursor selection */ static ButtonList buttonList(const QDesignerFormWindowCursorInterface *cursor) { ButtonList rc; const int selectionCount = cursor->selectedWidgetCount(); for (int i = 0; i < selectionCount; i++) { QAbstractButton *ab = qobject_cast(cursor->selectedWidget(i)); Q_ASSERT(ab); rc += ab; } return rc; } // Create a command to remove the buttons from their group // If it would leave an empty or 1-member group behind, create a break command instead static QUndoCommand *createRemoveButtonsCommand(QDesignerFormWindowInterface *fw, const ButtonList &bl) { QButtonGroup *bg = bl.front()->group(); // Complete group or 1-member group? if (bl.size() >= bg->buttons().size() - 1) { BreakButtonGroupCommand *breakCmd = new BreakButtonGroupCommand(fw); if (!breakCmd->init(bg)) { qWarning("** WARNING Failed to initialize BreakButtonGroupCommand!"); delete breakCmd; return 0; } return breakCmd; } // Just remove the buttons RemoveButtonsFromGroupCommand *removeCmd = new RemoveButtonsFromGroupCommand(fw); if (!removeCmd->init(bl)) { qWarning("** WARNING Failed to initialize RemoveButtonsFromGroupCommand!"); delete removeCmd; return 0; } return removeCmd; } void ButtonTaskMenu::createGroup() { QDesignerFormWindowInterface *fw = formWindow(); const ButtonList bl = buttonList(fw->cursor()); // Do we need to remove the buttons from an existing group? QUndoCommand *removeCmd = 0; if (bl.front()->group()) { removeCmd = createRemoveButtonsCommand(fw, bl); if (!removeCmd) return; } // Add cmd CreateButtonGroupCommand *addCmd = new CreateButtonGroupCommand(fw); if (!addCmd->init(bl)) { qWarning("** WARNING Failed to initialize CreateButtonGroupCommand!"); delete addCmd; return; } // Need a macro [even if we only have the add command] since the command might trigger additional commands QUndoStack *history = fw->commandHistory(); history->beginMacro(addCmd->text()); if (removeCmd) history->push(removeCmd); history->push(addCmd); history->endMacro(); } QAbstractButton *ButtonTaskMenu::button() const { return qobject_cast(widget()); } // Figure out if we have a homogenous selections (buttons of the same group or no group) ButtonTaskMenu::SelectionType ButtonTaskMenu::selectionType(const QDesignerFormWindowCursorInterface *cursor, QButtonGroup **ptrToGroup) const { const int selectionCount = cursor->selectedWidgetCount(); if (!selectionCount) return OtherSelection; QButtonGroup *commonGroup = 0; for (int i = 0; i < selectionCount; i++) { if (const QAbstractButton *ab = qobject_cast(cursor->selectedWidget(i))) { QButtonGroup *buttonGroup = ab->group(); if (i) { if (buttonGroup != commonGroup) return OtherSelection; } else { commonGroup = buttonGroup; } } else { return OtherSelection; } } if (ptrToGroup) *ptrToGroup = commonGroup; return commonGroup ? GroupedButtonSelection : UngroupedButtonSelection; } void ButtonTaskMenu::addToGroup(QAction *a) { QButtonGroup *bg = qvariant_cast(a->data()); Q_ASSERT(bg); QDesignerFormWindowInterface *fw = formWindow(); const ButtonList bl = buttonList(fw->cursor()); // Do we need to remove the buttons from an existing group? QUndoCommand *removeCmd = 0; if (bl.front()->group()) { removeCmd = createRemoveButtonsCommand(fw, bl); if (!removeCmd) return; } AddButtonsToGroupCommand *addCmd = new AddButtonsToGroupCommand(fw); addCmd->init(bl, bg); QUndoStack *history = fw->commandHistory(); if (removeCmd) { history->beginMacro(addCmd->text()); history->push(removeCmd); history->push(addCmd); history->endMacro(); } else { history->push(addCmd); } } void ButtonTaskMenu::removeFromGroup() { QDesignerFormWindowInterface *fw = formWindow(); if (QUndoCommand *cmd = createRemoveButtonsCommand(fw, buttonList(fw->cursor()))) fw->commandHistory()->push(cmd); } // -------------- CommandLinkButtonTaskMenu CommandLinkButtonTaskMenu::CommandLinkButtonTaskMenu(QCommandLinkButton *button, QObject *parent) : ButtonTaskMenu(button, parent) { TaskMenuInlineEditor *descriptonEditor = new LinkDescriptionTaskMenuInlineEditor(button, this); QAction *descriptionAction = new QAction(tr("Change description..."), this); connect(descriptionAction, SIGNAL(triggered()), descriptonEditor, SLOT(editText())); insertAction(1, descriptionAction); } } QT_END_NAMESPACE