forked from qt-creator/qt-creator
554b8e996b
This tool made selecting items in your QML app more complicated than necessary. Now, left-click will always just select the top-most item under the mouse and right-click will allow you to select any of the items below. Also, the highlighted bounding rect now always applies to just one item, instead of also including the children bounding rect. Reviewed-by: Kai Koehne Change-Id: I17b5ab397d951fd68711590469ca6e723a9cb0e6 (backported from Qt 4.8 commit 935472c16fc53ee43e1e680ed0122e6363282a8e) Reviewed-on: http://codereview.qt.nokia.com/89 Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: Kai Koehne <kai.koehne@nokia.com>
430 lines
16 KiB
C++
430 lines
16 KiB
C++
/**************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Nokia Corporation (info@qt.nokia.com)
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**
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**
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** GNU Lesser General Public License Usage
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**
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this file.
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** Please review the following information to ensure the GNU Lesser General
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** Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** Other Usage
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**
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**************************************************************************/
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#include "liveselectiontool.h"
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#include "livelayeritem.h"
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#include "../qdeclarativeviewobserver_p.h"
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#include <QtGui/QApplication>
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#include <QtGui/QWheelEvent>
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#include <QtGui/QMouseEvent>
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#include <QtGui/QClipboard>
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#include <QtGui/QMenu>
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#include <QtGui/QAction>
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#include <QtGui/QGraphicsObject>
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#include <QtDeclarative/QDeclarativeItem>
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#include <QtDeclarative/QDeclarativeEngine>
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#include <QtCore/QDebug>
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namespace QmlJSDebugger {
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LiveSelectionTool::LiveSelectionTool(QDeclarativeViewObserver *editorView) :
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AbstractLiveEditTool(editorView),
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m_rubberbandSelectionMode(false),
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m_rubberbandSelectionManipulator(
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QDeclarativeViewObserverPrivate::get(editorView)->manipulatorLayer, editorView),
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m_singleSelectionManipulator(editorView),
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m_selectionIndicator(editorView,
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QDeclarativeViewObserverPrivate::get(editorView)->manipulatorLayer),
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//m_resizeIndicator(editorView->manipulatorLayer()),
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m_selectOnlyContentItems(true)
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{
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}
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LiveSelectionTool::~LiveSelectionTool()
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{
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}
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void LiveSelectionTool::setRubberbandSelectionMode(bool value)
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{
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m_rubberbandSelectionMode = value;
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}
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LiveSingleSelectionManipulator::SelectionType LiveSelectionTool::getSelectionType(Qt::KeyboardModifiers
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modifiers)
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{
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LiveSingleSelectionManipulator::SelectionType selectionType
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= LiveSingleSelectionManipulator::ReplaceSelection;
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if (modifiers.testFlag(Qt::ControlModifier)) {
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selectionType = LiveSingleSelectionManipulator::RemoveFromSelection;
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} else if (modifiers.testFlag(Qt::ShiftModifier)) {
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selectionType = LiveSingleSelectionManipulator::AddToSelection;
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}
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return selectionType;
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}
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bool LiveSelectionTool::alreadySelected(const QList<QGraphicsItem*> &itemList) const
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{
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QDeclarativeViewObserverPrivate *observerPrivate
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= QDeclarativeViewObserverPrivate::get(observer());
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const QList<QGraphicsItem*> selectedItems = observerPrivate->selectedItems();
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if (selectedItems.isEmpty())
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return false;
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foreach (QGraphicsItem *item, itemList)
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if (selectedItems.contains(item))
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return true;
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return false;
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}
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void LiveSelectionTool::mousePressEvent(QMouseEvent *event)
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{
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QDeclarativeViewObserverPrivate *observerPrivate
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= QDeclarativeViewObserverPrivate::get(observer());
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QList<QGraphicsItem*> itemList = observerPrivate->selectableItems(event->pos());
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LiveSingleSelectionManipulator::SelectionType selectionType = getSelectionType(event->modifiers());
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if (event->buttons() & Qt::LeftButton) {
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m_mousePressTimer.start();
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if (m_rubberbandSelectionMode) {
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m_rubberbandSelectionManipulator.begin(event->pos());
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} else {
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m_singleSelectionManipulator.begin(event->pos());
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m_singleSelectionManipulator.select(selectionType, m_selectOnlyContentItems);
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}
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} else if (event->buttons() & Qt::RightButton) {
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createContextMenu(itemList, event->globalPos());
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}
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}
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void LiveSelectionTool::createContextMenu(QList<QGraphicsItem*> itemList, QPoint globalPos)
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{
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QMenu contextMenu;
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connect(&contextMenu, SIGNAL(hovered(QAction*)),
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this, SLOT(contextMenuElementHovered(QAction*)));
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m_contextMenuItemList = itemList;
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contextMenu.addAction("Items");
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contextMenu.addSeparator();
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int shortcutKey = Qt::Key_1;
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bool addKeySequence = true;
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int i = 0;
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foreach (QGraphicsItem * const item, itemList) {
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QString itemTitle = titleForItem(item);
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QAction *elementAction = contextMenu.addAction(itemTitle, this,
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SLOT(contextMenuElementSelected()));
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if (observer()->selectedItems().contains(item)) {
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QFont boldFont = elementAction->font();
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boldFont.setBold(true);
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elementAction->setFont(boldFont);
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}
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elementAction->setData(i);
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if (addKeySequence)
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elementAction->setShortcut(QKeySequence(shortcutKey));
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shortcutKey++;
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if (shortcutKey > Qt::Key_9)
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addKeySequence = false;
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++i;
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}
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// add root item separately
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// QString itemTitle = QString(tr("%1")).arg(titleForItem(view()->currentRootItem()));
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// contextMenu.addAction(itemTitle, this, SLOT(contextMenuElementSelected()));
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// m_contextMenuItemList.append(view()->currentRootItem());
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contextMenu.exec(globalPos);
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m_contextMenuItemList.clear();
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}
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void LiveSelectionTool::contextMenuElementSelected()
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{
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QAction *senderAction = static_cast<QAction*>(sender());
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int itemListIndex = senderAction->data().toInt();
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if (itemListIndex >= 0 && itemListIndex < m_contextMenuItemList.length()) {
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QPointF updatePt(0, 0);
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QGraphicsItem *item = m_contextMenuItemList.at(itemListIndex);
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m_singleSelectionManipulator.begin(updatePt);
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m_singleSelectionManipulator.select(LiveSingleSelectionManipulator::InvertSelection,
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QList<QGraphicsItem*>() << item,
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false);
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m_singleSelectionManipulator.end(updatePt);
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}
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}
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void LiveSelectionTool::contextMenuElementHovered(QAction *action)
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{
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int itemListIndex = action->data().toInt();
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if (itemListIndex >= 0 && itemListIndex < m_contextMenuItemList.length()) {
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QGraphicsObject *item = m_contextMenuItemList.at(itemListIndex)->toGraphicsObject();
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QDeclarativeViewObserverPrivate::get(observer())->highlight(item);
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}
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}
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void LiveSelectionTool::mouseMoveEvent(QMouseEvent *event)
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{
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if (m_singleSelectionManipulator.isActive()) {
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QPointF mouseMovementVector = m_singleSelectionManipulator.beginPoint() - event->pos();
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if ((mouseMovementVector.toPoint().manhattanLength() > Constants::DragStartDistance)
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&& (m_mousePressTimer.elapsed() > Constants::DragStartTime))
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{
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m_singleSelectionManipulator.end(event->pos());
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//view()->changeToMoveTool(m_singleSelectionManipulator.beginPoint());
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return;
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}
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} else if (m_rubberbandSelectionManipulator.isActive()) {
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QPointF mouseMovementVector = m_rubberbandSelectionManipulator.beginPoint() - event->pos();
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if ((mouseMovementVector.toPoint().manhattanLength() > Constants::DragStartDistance)
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&& (m_mousePressTimer.elapsed() > Constants::DragStartTime)) {
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m_rubberbandSelectionManipulator.update(event->pos());
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if (event->modifiers().testFlag(Qt::ControlModifier))
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m_rubberbandSelectionManipulator.select(
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LiveRubberBandSelectionManipulator::RemoveFromSelection);
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else if (event->modifiers().testFlag(Qt::ShiftModifier))
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m_rubberbandSelectionManipulator.select(
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LiveRubberBandSelectionManipulator::AddToSelection);
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else
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m_rubberbandSelectionManipulator.select(
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LiveRubberBandSelectionManipulator::ReplaceSelection);
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}
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}
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}
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void LiveSelectionTool::hoverMoveEvent(QMouseEvent * event)
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{
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// ### commented out until move tool is re-enabled
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// QList<QGraphicsItem*> itemList = view()->items(event->pos());
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// if (!itemList.isEmpty() && !m_rubberbandSelectionMode) {
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//
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// foreach (QGraphicsItem *item, itemList) {
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// if (item->type() == Constants::ResizeHandleItemType) {
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// ResizeHandleItem* resizeHandle = ResizeHandleItem::fromGraphicsItem(item);
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// if (resizeHandle)
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// view()->changeTool(Constants::ResizeToolMode);
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// return;
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// }
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// }
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// if (topSelectedItemIsMovable(itemList))
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// view()->changeTool(Constants::MoveToolMode);
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// }
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QDeclarativeViewObserverPrivate *observerPrivate
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= QDeclarativeViewObserverPrivate::get(observer());
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QList<QGraphicsItem*> selectableItemList = observerPrivate->selectableItems(event->pos());
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if (!selectableItemList.isEmpty()) {
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QGraphicsObject *item = selectableItemList.first()->toGraphicsObject();
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if (item)
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QDeclarativeViewObserverPrivate::get(observer())->highlight(item);
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return;
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}
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QDeclarativeViewObserverPrivate::get(observer())->clearHighlight();
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}
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void LiveSelectionTool::mouseReleaseEvent(QMouseEvent *event)
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{
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if (m_singleSelectionManipulator.isActive()) {
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m_singleSelectionManipulator.end(event->pos());
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}
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else if (m_rubberbandSelectionManipulator.isActive()) {
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QPointF mouseMovementVector = m_rubberbandSelectionManipulator.beginPoint() - event->pos();
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if (mouseMovementVector.toPoint().manhattanLength() < Constants::DragStartDistance) {
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m_singleSelectionManipulator.begin(event->pos());
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if (event->modifiers().testFlag(Qt::ControlModifier))
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m_singleSelectionManipulator.select(LiveSingleSelectionManipulator::RemoveFromSelection,
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m_selectOnlyContentItems);
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else if (event->modifiers().testFlag(Qt::ShiftModifier))
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m_singleSelectionManipulator.select(LiveSingleSelectionManipulator::AddToSelection,
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m_selectOnlyContentItems);
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else
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m_singleSelectionManipulator.select(LiveSingleSelectionManipulator::InvertSelection,
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m_selectOnlyContentItems);
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m_singleSelectionManipulator.end(event->pos());
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} else {
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m_rubberbandSelectionManipulator.update(event->pos());
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if (event->modifiers().testFlag(Qt::ControlModifier))
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m_rubberbandSelectionManipulator.select(
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LiveRubberBandSelectionManipulator::RemoveFromSelection);
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else if (event->modifiers().testFlag(Qt::ShiftModifier))
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m_rubberbandSelectionManipulator.select(
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LiveRubberBandSelectionManipulator::AddToSelection);
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else
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m_rubberbandSelectionManipulator.select(
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LiveRubberBandSelectionManipulator::ReplaceSelection);
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m_rubberbandSelectionManipulator.end();
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}
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}
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}
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void LiveSelectionTool::mouseDoubleClickEvent(QMouseEvent * /*event*/)
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{
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}
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void LiveSelectionTool::keyPressEvent(QKeyEvent *event)
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{
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switch(event->key()) {
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case Qt::Key_Left:
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case Qt::Key_Right:
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case Qt::Key_Up:
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case Qt::Key_Down:
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// disabled for now, cannot move stuff yet.
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//view()->changeTool(Constants::MoveToolMode);
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//view()->currentTool()->keyPressEvent(event);
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break;
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}
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}
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void LiveSelectionTool::keyReleaseEvent(QKeyEvent * /*keyEvent*/)
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{
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}
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void LiveSelectionTool::wheelEvent(QWheelEvent *event)
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{
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if (event->orientation() == Qt::Horizontal || m_rubberbandSelectionMode)
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return;
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QDeclarativeViewObserverPrivate *observerPrivate
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= QDeclarativeViewObserverPrivate::get(observer());
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QList<QGraphicsItem*> itemList = observerPrivate->selectableItems(event->pos());
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if (itemList.isEmpty())
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return;
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int selectedIdx = 0;
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if (!observer()->selectedItems().isEmpty()) {
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selectedIdx = itemList.indexOf(observer()->selectedItems().first());
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if (selectedIdx >= 0) {
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if (event->delta() > 0) {
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selectedIdx++;
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if (selectedIdx == itemList.length())
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selectedIdx = 0;
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} else if (event->delta() < 0) {
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selectedIdx--;
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if (selectedIdx == -1)
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selectedIdx = itemList.length() - 1;
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}
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} else {
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selectedIdx = 0;
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}
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}
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QPointF updatePt(0, 0);
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m_singleSelectionManipulator.begin(updatePt);
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m_singleSelectionManipulator.select(LiveSingleSelectionManipulator::ReplaceSelection,
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QList<QGraphicsItem*>() << itemList.at(selectedIdx),
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false);
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m_singleSelectionManipulator.end(updatePt);
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}
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void LiveSelectionTool::setSelectOnlyContentItems(bool selectOnlyContentItems)
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{
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m_selectOnlyContentItems = selectOnlyContentItems;
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}
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void LiveSelectionTool::itemsAboutToRemoved(const QList<QGraphicsItem*> &/*itemList*/)
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{
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}
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void LiveSelectionTool::clear()
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{
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view()->setCursor(Qt::ArrowCursor);
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m_rubberbandSelectionManipulator.clear(),
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m_singleSelectionManipulator.clear();
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m_selectionIndicator.clear();
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//m_resizeIndicator.clear();
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}
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void LiveSelectionTool::selectedItemsChanged(const QList<QGraphicsItem*> &itemList)
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{
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foreach (const QWeakPointer<QGraphicsObject> &obj, m_selectedItemList) {
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if (!obj.isNull()) {
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disconnect(obj.data(), SIGNAL(xChanged()), this, SLOT(repaintBoundingRects()));
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disconnect(obj.data(), SIGNAL(yChanged()), this, SLOT(repaintBoundingRects()));
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disconnect(obj.data(), SIGNAL(widthChanged()), this, SLOT(repaintBoundingRects()));
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disconnect(obj.data(), SIGNAL(heightChanged()), this, SLOT(repaintBoundingRects()));
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disconnect(obj.data(), SIGNAL(rotationChanged()), this, SLOT(repaintBoundingRects()));
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}
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}
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QList<QGraphicsObject*> objects = toGraphicsObjectList(itemList);
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m_selectedItemList.clear();
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foreach (QGraphicsObject *obj, objects) {
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m_selectedItemList.append(obj);
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connect(obj, SIGNAL(xChanged()), this, SLOT(repaintBoundingRects()));
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connect(obj, SIGNAL(yChanged()), this, SLOT(repaintBoundingRects()));
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connect(obj, SIGNAL(widthChanged()), this, SLOT(repaintBoundingRects()));
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connect(obj, SIGNAL(heightChanged()), this, SLOT(repaintBoundingRects()));
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connect(obj, SIGNAL(rotationChanged()), this, SLOT(repaintBoundingRects()));
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}
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m_selectionIndicator.setItems(m_selectedItemList);
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//m_resizeIndicator.setItems(toGraphicsObjectList(itemList));
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}
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void LiveSelectionTool::repaintBoundingRects()
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{
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m_selectionIndicator.setItems(m_selectedItemList);
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}
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void LiveSelectionTool::selectUnderPoint(QMouseEvent *event)
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{
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m_singleSelectionManipulator.begin(event->pos());
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if (event->modifiers().testFlag(Qt::ControlModifier))
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m_singleSelectionManipulator.select(LiveSingleSelectionManipulator::RemoveFromSelection,
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m_selectOnlyContentItems);
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else if (event->modifiers().testFlag(Qt::ShiftModifier))
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m_singleSelectionManipulator.select(LiveSingleSelectionManipulator::AddToSelection,
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m_selectOnlyContentItems);
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else
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m_singleSelectionManipulator.select(LiveSingleSelectionManipulator::InvertSelection,
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m_selectOnlyContentItems);
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m_singleSelectionManipulator.end(event->pos());
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}
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} // namespace QmlJSDebugger
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