forked from qt-creator/qt-creator
Refactored QmlJS Live Preview into a library
QMLObserver links against the library dynamically. User's apps can also link to it statically, so that the app can be deployed with debugging features to a device, without having to worry about library deployment.
This commit is contained in:
Lasse Holmstedt
326
src/libs/qmljsdebugger/editor/subcomponenteditortool.cpp
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326
src/libs/qmljsdebugger/editor/subcomponenteditortool.cpp
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#include "subcomponenteditortool.h"
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#include "qdeclarativedesignview.h"
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#include "subcomponentmasklayeritem.h"
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#include "layeritem.h"
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#include "crumblepath.h"
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#include <QGraphicsItem>
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#include <QGraphicsObject>
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#include <QTimer>
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#include <QMouseEvent>
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#include <QKeyEvent>
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#include <QDebug>
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namespace QmlViewer {
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const qreal MaxOpacity = 0.5f;
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SubcomponentEditorTool::SubcomponentEditorTool(QDeclarativeDesignView *view)
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: AbstractFormEditorTool(view),
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m_animIncrement(0.05f),
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m_animTimer(new QTimer(this)),
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m_crumblePathWidget(0)
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{
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m_mask = new SubcomponentMaskLayerItem(view, view->manipulatorLayer());
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connect(m_animTimer, SIGNAL(timeout()), SLOT(animate()));
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m_animTimer->setInterval(20);
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}
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SubcomponentEditorTool::~SubcomponentEditorTool()
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{
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}
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void SubcomponentEditorTool::mousePressEvent(QMouseEvent * /*event*/)
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{
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}
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void SubcomponentEditorTool::mouseMoveEvent(QMouseEvent * /*event*/)
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{
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}
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bool SubcomponentEditorTool::containsCursor(const QPoint &mousePos) const
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{
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if (!m_currentContext.size())
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return false;
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QPointF scenePos = view()->mapToScene(mousePos);
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QRectF itemRect = m_currentContext.top()->boundingRect() | m_currentContext.top()->childrenBoundingRect();
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QRectF polyRect = m_currentContext.top()->mapToScene(itemRect).boundingRect();
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return polyRect.contains(scenePos);
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}
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void SubcomponentEditorTool::mouseReleaseEvent(QMouseEvent * /*event*/)
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{
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}
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void SubcomponentEditorTool::mouseDoubleClickEvent(QMouseEvent *event)
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{
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if (event->buttons() & Qt::LeftButton
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&& !containsCursor(event->pos())
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&& m_currentContext.size() > 1)
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{
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aboutToPopContext();
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}
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}
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void SubcomponentEditorTool::hoverMoveEvent(QMouseEvent *event)
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{
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if (!containsCursor(event->pos()) && m_currentContext.size() > 1) {
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view()->clearHighlight();
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}
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}
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void SubcomponentEditorTool::wheelEvent(QWheelEvent * /*event*/)
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{
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}
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void SubcomponentEditorTool::keyPressEvent(QKeyEvent * /*event*/)
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{
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}
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void SubcomponentEditorTool::keyReleaseEvent(QKeyEvent * /*keyEvent*/)
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{
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}
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void SubcomponentEditorTool::itemsAboutToRemoved(const QList<QGraphicsItem*> &/*itemList*/)
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{
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}
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void SubcomponentEditorTool::animate()
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{
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if (m_animIncrement > 0) {
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if (m_mask->opacity() + m_animIncrement < MaxOpacity) {
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m_mask->setOpacity(m_mask->opacity() + m_animIncrement);
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} else {
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m_animTimer->stop();
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m_mask->setOpacity(MaxOpacity);
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}
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} else {
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if (m_mask->opacity() + m_animIncrement > 0) {
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m_mask->setOpacity(m_mask->opacity() + m_animIncrement);
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} else {
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m_animTimer->stop();
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m_mask->setOpacity(0);
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popContext();
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}
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}
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}
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void SubcomponentEditorTool::clear()
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{
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m_currentContext.clear();
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m_mask->setCurrentItem(0);
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m_animTimer->stop();
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m_mask->hide();
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if (m_crumblePathWidget)
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m_crumblePathWidget->clear();
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}
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void SubcomponentEditorTool::graphicsObjectsChanged(const QList<QGraphicsObject*> &/*itemList*/)
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{
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}
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void SubcomponentEditorTool::selectedItemsChanged(const QList<QGraphicsItem*> &/*itemList*/)
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{
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}
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void SubcomponentEditorTool::setCurrentItem(QGraphicsItem* contextItem)
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{
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if (!contextItem)
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return;
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QGraphicsObject *gfxObject = contextItem->toGraphicsObject();
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if (!gfxObject)
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return;
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connect(gfxObject, SIGNAL(xChanged()), SLOT(refresh()));
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connect(gfxObject, SIGNAL(yChanged()), SLOT(refresh()));
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connect(gfxObject, SIGNAL(scaleChanged()), SLOT(refresh()));
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connect(gfxObject, SIGNAL(widthChanged()), SLOT(refresh()));
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connect(gfxObject, SIGNAL(heightChanged()), SLOT(refresh()));
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//QString parentClassName = gfxObject->metaObject()->className();
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//if (parentClassName.contains(QRegExp("_QMLTYPE_\\d+")))
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bool containsSelectableItems = false;
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foreach(QGraphicsItem *item, gfxObject->childItems()) {
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if (item->type() == Constants::EditorItemType
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|| item->type() == Constants::ResizeHandleItemType)
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{
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continue;
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}
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containsSelectableItems = true;
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break;
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}
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if (containsSelectableItems) {
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m_mask->setCurrentItem(gfxObject);
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m_mask->setOpacity(0);
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m_mask->show();
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m_animIncrement = 0.05f;
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m_animTimer->start();
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view()->clearHighlight();
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view()->setSelectedItems(QList<QGraphicsItem*>());
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pushContext(gfxObject);
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}
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}
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QGraphicsItem *SubcomponentEditorTool::firstChildOfContext(QGraphicsItem *item) const
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{
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if (!item)
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return 0;
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if (isDirectChildOfContext(item))
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return item;
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QGraphicsItem *parent = item->parentItem();
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while (parent) {
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if (isDirectChildOfContext(parent))
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return parent;
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parent = parent->parentItem();
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}
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return 0;
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}
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bool SubcomponentEditorTool::isChildOfContext(QGraphicsItem *item) const
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{
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return (firstChildOfContext(item) != 0);
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}
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bool SubcomponentEditorTool::isDirectChildOfContext(QGraphicsItem *item) const
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{
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return (item->parentItem() == m_currentContext.top());
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}
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bool SubcomponentEditorTool::itemIsChildOfQmlSubComponent(QGraphicsItem *item) const
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{
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if (item->parentItem() && item->parentItem() != m_currentContext.top()) {
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QGraphicsObject *parent = item->parentItem()->toGraphicsObject();
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QString parentClassName = parent->metaObject()->className();
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if (parentClassName.contains(QRegExp("_QMLTYPE_\\d+"))) {
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return true;
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} else {
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return itemIsChildOfQmlSubComponent(parent);
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}
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}
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return false;
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}
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void SubcomponentEditorTool::pushContext(QGraphicsObject *contextItem)
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{
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connect(contextItem, SIGNAL(destroyed(QObject*)), SLOT(contextDestroyed(QObject*)));
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m_currentContext.push(contextItem);
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if (m_crumblePathWidget)
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m_crumblePathWidget->pushElement(titleForItem(contextItem));
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}
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void SubcomponentEditorTool::aboutToPopContext()
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{
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if (m_currentContext.size() > 2) {
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popContext();
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} else {
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m_animIncrement = -0.05f;
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m_animTimer->start();
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}
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}
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QGraphicsObject *SubcomponentEditorTool::popContext()
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{
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QGraphicsObject *popped = m_currentContext.pop();
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if (m_crumblePathWidget)
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m_crumblePathWidget->popElement();
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disconnect(popped, SIGNAL(xChanged()), this, SLOT(refresh()));
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disconnect(popped, SIGNAL(yChanged()), this, SLOT(refresh()));
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disconnect(popped, SIGNAL(scaleChanged()), this, SLOT(refresh()));
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disconnect(popped, SIGNAL(widthChanged()), this, SLOT(refresh()));
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disconnect(popped, SIGNAL(heightChanged()), this, SLOT(refresh()));
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if (m_currentContext.size() > 1) {
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m_mask->setCurrentItem(m_currentContext.top());
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m_mask->setOpacity(MaxOpacity);
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m_mask->setVisible(true);
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} else {
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m_mask->setVisible(false);
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}
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return popped;
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}
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void SubcomponentEditorTool::refresh()
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{
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m_mask->setCurrentItem(m_currentContext.top());
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}
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QGraphicsObject *SubcomponentEditorTool::currentRootItem() const
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{
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return m_currentContext.top();
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}
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void SubcomponentEditorTool::contextDestroyed(QObject *contextToDestroy)
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{
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disconnect(contextToDestroy, SIGNAL(destroyed(QObject*)), this, SLOT(contextDestroyed(QObject*)));
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// pop out the whole context - it might not be safe anymore.
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while (m_currentContext.size() > 1) {
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m_currentContext.pop();
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if (m_crumblePathWidget)
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m_crumblePathWidget->popElement();
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}
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m_mask->setVisible(false);
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}
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void SubcomponentEditorTool::setCrumblePathWidget(CrumblePath *pathWidget)
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{
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m_crumblePathWidget = pathWidget;
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if (m_crumblePathWidget) {
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connect(m_crumblePathWidget, SIGNAL(elementClicked(int)), SLOT(setContext(int)));
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connect(m_crumblePathWidget, SIGNAL(elementContextMenuRequested(int)), SLOT(openContextMenuForContext(int)));
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}
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}
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void SubcomponentEditorTool::setContext(int contextIndex)
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{
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Q_ASSERT(contextIndex >= 0);
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// sometimes we have to delete the context while user was still clicking around,
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// so just bail out.
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if (contextIndex >= m_currentContext.size() -1)
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return;
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while (m_currentContext.size() - 1 > contextIndex) {
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popContext();
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}
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}
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void SubcomponentEditorTool::openContextMenuForContext(int /*contextIndex*/)
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{
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}
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} // namespace QmlViewer
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