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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qdesigner_toolbar_p.h"
#include "qdesigner_command_p.h"
#include "actionrepository_p.h"
#include "actionprovider_p.h"
#include "qdesigner_utils_p.h"
#include "qdesigner_objectinspector_p.h"
#include "promotiontaskmenu_p.h"
#include <QtDesigner/QDesignerFormWindowInterface>
#include <QtDesigner/QDesignerPropertyEditorInterface>
#include <QtDesigner/QDesignerFormEditorInterface>
#include <actionprovider_p.h>
#include <QtDesigner/QExtensionManager>
#include <QtDesigner/QDesignerWidgetFactoryInterface>
#include <QtGui/QAction>
#include <QtGui/QApplication>
#include <QtGui/QToolButton>
#include <QtGui/QToolBar>
#include <QtGui/QMenu>
#include <QtGui/qevent.h>
#include <QtGui/QApplication>
#include <QtCore/QDebug>
Q_DECLARE_METATYPE(QAction*)
QT_BEGIN_NAMESPACE
typedef QList<QAction*> ActionList;
namespace qdesigner_internal {
// ------------------- ToolBarEventFilter
void ToolBarEventFilter::install(QToolBar *tb)
{
ToolBarEventFilter *tf = new ToolBarEventFilter(tb);
tb->installEventFilter(tf);
tb->setAcceptDrops(true); // ### fake
}
ToolBarEventFilter::ToolBarEventFilter(QToolBar *tb) :
QObject(tb),
m_toolBar(tb),
m_promotionTaskMenu(0)
{
}
ToolBarEventFilter *ToolBarEventFilter::eventFilterOf(const QToolBar *tb)
{
// Look for 1st order children only..otherwise, we might get filters of nested widgets
const QObjectList children = tb->children();
const QObjectList::const_iterator cend = children.constEnd();
for (QObjectList::const_iterator it = children.constBegin(); it != cend; ++it) {
QObject *o = *it;
if (!o->isWidgetType())
if (ToolBarEventFilter *ef = qobject_cast<ToolBarEventFilter *>(o))
return ef;
}
return 0;
}
bool ToolBarEventFilter::eventFilter (QObject *watched, QEvent *event)
{
if (watched != m_toolBar)
return QObject::eventFilter (watched, event);
switch (event->type()) {
case QEvent::ChildAdded: {
// Children should not interact with the mouse
const QChildEvent *ce = static_cast<const QChildEvent *>(event);
if (QWidget *w = qobject_cast<QWidget *>(ce->child())) {
w->setAttribute(Qt::WA_TransparentForMouseEvents, true);
w->setFocusPolicy(Qt::NoFocus);
}
}
break;
case QEvent::ContextMenu:
return handleContextMenuEvent(static_cast<QContextMenuEvent*>(event));
case QEvent::DragEnter:
case QEvent::DragMove:
return handleDragEnterMoveEvent(static_cast<QDragMoveEvent *>(event));
case QEvent::DragLeave:
return handleDragLeaveEvent(static_cast<QDragLeaveEvent *>(event));
case QEvent::Drop:
return handleDropEvent(static_cast<QDropEvent *>(event));
case QEvent::MouseButtonPress:
return handleMousePressEvent(static_cast<QMouseEvent*>(event));
case QEvent::MouseButtonRelease:
return handleMouseReleaseEvent(static_cast<QMouseEvent*>(event));
case QEvent::MouseMove:
return handleMouseMoveEvent(static_cast<QMouseEvent*>(event));
default:
break;
}
return QObject::eventFilter (watched, event);
}
ActionList ToolBarEventFilter::contextMenuActions(const QPoint &globalPos)
{
ActionList rc;
const int index = actionIndexAt(m_toolBar, m_toolBar->mapFromGlobal(globalPos), m_toolBar->orientation());
const ActionList actions = m_toolBar->actions();
QAction *action = index != -1 ?actions.at(index) : 0;
QVariant itemData;
// Insert before
if (action && index != 0 && !action->isSeparator()) {
QAction *newSeperatorAct = new QAction(tr("Insert Separator before '%1'").arg(action->objectName()), 0);
itemData.setValue(action);
newSeperatorAct->setData(itemData);
connect(newSeperatorAct, SIGNAL(triggered()), this, SLOT(slotInsertSeparator()));
rc.push_back(newSeperatorAct);
}
// Append separator
if (actions.empty() || !actions.back()->isSeparator()) {
QAction *newSeperatorAct = new QAction(tr("Append Separator"), 0);
itemData.setValue(static_cast<QAction*>(0));
newSeperatorAct->setData(itemData);
connect(newSeperatorAct, SIGNAL(triggered()), this, SLOT(slotInsertSeparator()));
rc.push_back(newSeperatorAct);
}
// Promotion
if (!m_promotionTaskMenu)
m_promotionTaskMenu = new PromotionTaskMenu(m_toolBar, PromotionTaskMenu::ModeSingleWidget, this);
m_promotionTaskMenu->addActions(formWindow(), PromotionTaskMenu::LeadingSeparator|PromotionTaskMenu::TrailingSeparator, rc);
// Remove
if (action) {
QAction *a = new QAction(tr("Remove action '%1'").arg(action->objectName()), 0);
itemData.setValue(action);
a->setData(itemData);
connect(a, SIGNAL(triggered()), this, SLOT(slotRemoveSelectedAction()));
rc.push_back(a);
}
QAction *remove_toolbar = new QAction(tr("Remove Toolbar '%1'").arg(m_toolBar->objectName()), 0);
connect(remove_toolbar, SIGNAL(triggered()), this, SLOT(slotRemoveToolBar()));
rc.push_back(remove_toolbar);
return rc;
}
bool ToolBarEventFilter::handleContextMenuEvent(QContextMenuEvent * event )
{
event->accept();
const QPoint globalPos = event->globalPos();
const ActionList al = contextMenuActions(event->globalPos());
QMenu menu(0);
const ActionList::const_iterator acend = al.constEnd();
for (ActionList::const_iterator it = al.constBegin(); it != acend; ++it)
menu.addAction(*it);
menu.exec(globalPos);
return true;
}
void ToolBarEventFilter::slotRemoveSelectedAction()
{
QAction *action = qobject_cast<QAction*>(sender());
if (!action)
return;
QAction *a = qvariant_cast<QAction*>(action->data());
Q_ASSERT(a != 0);
QDesignerFormWindowInterface *fw = formWindow();
Q_ASSERT(fw);
const ActionList actions = m_toolBar->actions();
const int pos = actions.indexOf(a);
QAction *action_before = 0;
if (pos != -1 && actions.count() > pos + 1)
action_before = actions.at(pos + 1);
RemoveActionFromCommand *cmd = new RemoveActionFromCommand(fw);
cmd->init(m_toolBar, a, action_before);
fw->commandHistory()->push(cmd);
}
void ToolBarEventFilter::slotRemoveToolBar()
{
QDesignerFormWindowInterface *fw = formWindow();
Q_ASSERT(fw);
DeleteToolBarCommand *cmd = new DeleteToolBarCommand(fw);
cmd->init(m_toolBar);
fw->commandHistory()->push(cmd);
}
void ToolBarEventFilter::slotInsertSeparator()
{
QDesignerFormWindowInterface *fw = formWindow();
QAction *theSender = qobject_cast<QAction*>(sender());
QAction *previous = qvariant_cast<QAction *>(theSender->data());
fw->beginCommand(tr("Insert Separator"));
QAction *action = createAction(fw, QLatin1String("separator"), true);
InsertActionIntoCommand *cmd = new InsertActionIntoCommand(fw);
cmd->init(m_toolBar, action, previous);
fw->commandHistory()->push(cmd);
fw->endCommand();
}
QDesignerFormWindowInterface *ToolBarEventFilter::formWindow() const
{
return QDesignerFormWindowInterface::findFormWindow(m_toolBar);
}
QAction *ToolBarEventFilter::createAction(QDesignerFormWindowInterface *fw, const QString &objectName, bool separator)
{
QAction *action = new QAction(fw);
fw->core()->widgetFactory()->initialize(action);
if (separator)
action->setSeparator(true);
action->setObjectName(objectName);
fw->ensureUniqueObjectName(action);
qdesigner_internal::AddActionCommand *cmd = new qdesigner_internal::AddActionCommand(fw);
cmd->init(action);
fw->commandHistory()->push(cmd);
return action;
}
void ToolBarEventFilter::adjustDragIndicator(const QPoint &pos)
{
if (QDesignerFormWindowInterface *fw = formWindow()) {
QDesignerFormEditorInterface *core = fw->core();
if (QDesignerActionProviderExtension *a = qt_extension<QDesignerActionProviderExtension*>(core->extensionManager(), m_toolBar))
a->adjustIndicator(pos);
}
}
void ToolBarEventFilter::hideDragIndicator()
{
adjustDragIndicator(QPoint(-1, -1));
}
bool ToolBarEventFilter::handleMousePressEvent(QMouseEvent *event)
{
if (event->button() != Qt::LeftButton || withinHandleArea(m_toolBar, event->pos()))
return false;
if (QDesignerFormWindowInterface *fw = formWindow()) {
QDesignerFormEditorInterface *core = fw->core();
// Keep selection in sync
fw->clearSelection(false);
if (QDesignerObjectInspector *oi = qobject_cast<QDesignerObjectInspector *>(core->objectInspector())) {
oi->clearSelection();
oi->selectObject(m_toolBar);
}
core->propertyEditor()->setObject(m_toolBar);
}
m_startPosition = m_toolBar->mapFromGlobal(event->globalPos());
event->accept();
return true;
}
bool ToolBarEventFilter::handleMouseReleaseEvent(QMouseEvent *event)
{
if (event->button() != Qt::LeftButton || m_startPosition.isNull() || withinHandleArea(m_toolBar, event->pos()))
return false;
// Accept the event, otherwise, form window selection will trigger
m_startPosition = QPoint();
event->accept();
return true;
}
bool ToolBarEventFilter::handleMouseMoveEvent(QMouseEvent *event)
{
if (m_startPosition.isNull() || withinHandleArea(m_toolBar, event->pos()))
return false;
const QPoint pos = m_toolBar->mapFromGlobal(event->globalPos());
if ((pos - m_startPosition).manhattanLength() > qApp->startDragDistance()) {
startDrag(m_startPosition, event->modifiers());
m_startPosition = QPoint();
event->accept();
return true;
}
return false;
}
bool ToolBarEventFilter::handleDragEnterMoveEvent(QDragMoveEvent *event)
{
const ActionRepositoryMimeData *d = qobject_cast<const ActionRepositoryMimeData*>(event->mimeData());
if (!d)
return false;
if (d->actionList().isEmpty()) {
event->ignore();
hideDragIndicator();
return true;
}
QAction *action = d->actionList().first();
if (!action || action->menu() || m_toolBar->actions().contains(action) || !Utils::isObjectAncestorOf(formWindow()->mainContainer(), action)) {
event->ignore();
hideDragIndicator();
return true;
}
d->accept(event);
adjustDragIndicator(event->pos());
return true;
}
bool ToolBarEventFilter::handleDragLeaveEvent(QDragLeaveEvent *)
{
hideDragIndicator();
return false;
}
bool ToolBarEventFilter::handleDropEvent(QDropEvent *event)
{
const ActionRepositoryMimeData *d = qobject_cast<const ActionRepositoryMimeData*>(event->mimeData());
if (!d)
return false;
if (d->actionList().isEmpty()) {
event->ignore();
hideDragIndicator();
return true;
}
QAction *action = d->actionList().first();
const ActionList actions = m_toolBar->actions();
if (!action || actions.contains(action)) {
event->ignore();
hideDragIndicator();
return true;
}
// Try to find action to 'insert before'. Click on action or in free area, else ignore.
QAction *beforeAction = 0;
const QPoint pos = event->pos();
const int index = actionIndexAt(m_toolBar, pos, m_toolBar->orientation());
if (index != -1) {
beforeAction = actions.at(index);
} else {
if (!freeArea(m_toolBar).contains(pos)) {
event->ignore();
hideDragIndicator();
return true;
}
}
event->acceptProposedAction();
QDesignerFormWindowInterface *fw = formWindow();
InsertActionIntoCommand *cmd = new InsertActionIntoCommand(fw);
cmd->init(m_toolBar, action, beforeAction);
fw->commandHistory()->push(cmd);
hideDragIndicator();
return true;
}
void ToolBarEventFilter::startDrag(const QPoint &pos, Qt::KeyboardModifiers modifiers)
{
const int index = actionIndexAt(m_toolBar, pos, m_toolBar->orientation());
if (index == - 1)
return;
const ActionList actions = m_toolBar->actions();
QAction *action = actions.at(index);
QDesignerFormWindowInterface *fw = formWindow();
const Qt::DropAction dropAction = (modifiers & Qt::ControlModifier) ? Qt::CopyAction : Qt::MoveAction;
if (dropAction == Qt::MoveAction) {
RemoveActionFromCommand *cmd = new RemoveActionFromCommand(fw);
const int nextIndex = index + 1;
QAction *nextAction = nextIndex < actions.size() ? actions.at(nextIndex) : 0;
cmd->init(m_toolBar, action, nextAction);
fw->commandHistory()->push(cmd);
}
QDrag *drag = new QDrag(m_toolBar);
drag->setPixmap(ActionRepositoryMimeData::actionDragPixmap( action));
drag->setMimeData(new ActionRepositoryMimeData(action, dropAction));
if (drag->start(dropAction) == Qt::IgnoreAction) {
hideDragIndicator();
if (dropAction == Qt::MoveAction) {
const ActionList currentActions = m_toolBar->actions();
QAction *previous = 0;
if (index >= 0 && index < currentActions.size())
previous = currentActions.at(index);
InsertActionIntoCommand *cmd = new InsertActionIntoCommand(fw);
cmd->init(m_toolBar, action, previous);
fw->commandHistory()->push(cmd);
}
}
}
QAction *ToolBarEventFilter::actionAt(const QToolBar *tb, const QPoint &pos)
{
const int index = actionIndexAt(tb, pos, tb->orientation());
if (index == -1)
return 0;
return tb->actions().at(index);
}
//that's a trick to get access to the initStyleOption which is a protected member
class FriendlyToolBar : public QToolBar {
public:
friend class ToolBarEventFilter;
};
QRect ToolBarEventFilter::handleArea(const QToolBar *tb)
{
QStyleOptionToolBar opt;
static_cast<const FriendlyToolBar*>(tb)->initStyleOption(&opt);
return tb->style()->subElementRect(QStyle::SE_ToolBarHandle, &opt, tb);
}
bool ToolBarEventFilter::withinHandleArea(const QToolBar *tb, const QPoint &pos)
{
return handleArea(tb).contains(pos);
}
// Determine the free area behind the last action.
QRect ToolBarEventFilter::freeArea(const QToolBar *tb)
{
QRect rc = QRect(QPoint(0, 0), tb->size());
const ActionList actionList = tb->actions();
QRect exclusionRectangle = actionList.empty() ? handleArea(tb) : tb->actionGeometry(actionList.back());
switch (tb->orientation()) {
case Qt::Horizontal:
switch (tb->layoutDirection()) {
case Qt::LayoutDirectionAuto: // Should never happen
case Qt::LeftToRight:
rc.setX(exclusionRectangle.right() + 1);
break;
case Qt::RightToLeft:
rc.setRight(exclusionRectangle.x());
break;
}
break;
case Qt::Vertical:
rc.setY(exclusionRectangle.bottom() + 1);
break;
}
return rc;
}
}
QT_END_NAMESPACE
|