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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "timelineselectiontool.h"
#include "timelineconstants.h"
#include "timelinegraphicsscene.h"
#include "timelinemovableabstractitem.h"
#include "timelinepropertyitem.h"
#include "timelinetooldelegate.h"
#include <QGraphicsRectItem>
#include <QGraphicsView>
#include <QGraphicsSceneMouseEvent>
#include <QScrollBar>
#include <QPen>
namespace QmlDesigner {
TimelineSelectionTool::TimelineSelectionTool(AbstractScrollGraphicsScene *scene,
TimelineToolDelegate *delegate)
: TimelineAbstractTool(scene, delegate)
, m_selectionRect(new QGraphicsRectItem)
{
scene->addItem(m_selectionRect);
QPen pen(Qt::black);
pen.setJoinStyle(Qt::MiterJoin);
pen.setCosmetic(true);
m_selectionRect->setPen(pen);
m_selectionRect->setBrush(QColor(128, 128, 128, 50));
m_selectionRect->setZValue(100);
m_selectionRect->hide();
}
TimelineSelectionTool::~TimelineSelectionTool() = default;
SelectionMode TimelineSelectionTool::selectionMode(QGraphicsSceneMouseEvent *event)
{
if (event->modifiers().testFlag(Qt::ControlModifier)) {
if (event->modifiers().testFlag(Qt::ShiftModifier))
return SelectionMode::Add;
else
return SelectionMode::Toggle;
}
return SelectionMode::New;
}
void TimelineSelectionTool::mousePressEvent([[maybe_unused]] TimelineMovableAbstractItem *item,
[[maybe_unused]] QGraphicsSceneMouseEvent *event)
{
if (event->buttons() == Qt::LeftButton && selectionMode(event) == SelectionMode::New)
deselect();
}
void TimelineSelectionTool::mouseMoveEvent([[maybe_unused]] TimelineMovableAbstractItem *item,
QGraphicsSceneMouseEvent *event)
{
if (event->buttons() == Qt::LeftButton) {
auto endPoint = event->scenePos();
const qreal xMin = TimelineConstants::sectionWidth;
const qreal xMax = scene()->graphicsView()->width()
- TimelineConstants::timelineLeftOffset - 1;
const qreal yMin = qMax(TimelineConstants::rulerHeight,
scene()->graphicsView()->verticalScrollBar()->value());
const qreal yMax = yMin + scene()->graphicsView()->height() - 1;
endPoint.rx() = qBound(xMin, endPoint.x(), xMax);
endPoint.ry() = qBound(yMin, endPoint.y(), yMax);
m_selectionRect->setRect(QRectF(startPosition(), endPoint).normalized());
m_selectionRect->show();
aboutToSelect(selectionMode(event),
scene()->items(m_selectionRect->rect(), Qt::IntersectsItemBoundingRect));
}
}
void TimelineSelectionTool::mouseReleaseEvent([[maybe_unused]] TimelineMovableAbstractItem *item,
QGraphicsSceneMouseEvent *event)
{
commitSelection(selectionMode(event));
reset();
}
void TimelineSelectionTool::mouseDoubleClickEvent(TimelineMovableAbstractItem *item,
[[maybe_unused]] QGraphicsSceneMouseEvent *event)
{
if (item)
item->itemDoubleClicked();
reset();
}
void TimelineSelectionTool::keyPressEvent([[maybe_unused]] QKeyEvent *keyEvent) {}
void TimelineSelectionTool::keyReleaseEvent([[maybe_unused]] QKeyEvent *keyEvent) {}
void TimelineSelectionTool::deselect()
{
resetHighlights();
scene()->clearSelection();
delegate()->clearSelection();
}
void TimelineSelectionTool::reset()
{
m_selectionRect->hide();
m_selectionRect->setRect(0, 0, 0, 0);
resetHighlights();
}
void TimelineSelectionTool::resetHighlights()
{
for (auto *keyframe : qAsConst(m_aboutToSelectBuffer))
if (scene()->isKeyframeSelected(keyframe))
keyframe->setHighlighted(true);
else
keyframe->setHighlighted(false);
m_aboutToSelectBuffer.clear();
}
void TimelineSelectionTool::aboutToSelect(SelectionMode mode, QList<QGraphicsItem *> items)
{
resetHighlights();
m_playbackLoopTimeSteps.clear();
for (auto *item : items) {
if (auto *keyframe = TimelineMovableAbstractItem::asTimelineKeyframeItem(item)) {
// if keyframe's center isn't inside m_selectionRect, discard it
if (!m_selectionRect->rect().contains(keyframe->rect().center() + item->scenePos()))
continue;
if (mode == SelectionMode::Remove)
keyframe->setHighlighted(false);
else if (mode == SelectionMode::Toggle)
if (scene()->isKeyframeSelected(keyframe))
keyframe->setHighlighted(false);
else
keyframe->setHighlighted(true);
else
keyframe->setHighlighted(true);
if (mode == SelectionMode::Toggle || mode == SelectionMode::Add) // TODO: Timeline keyframe highlight with selection tool is set as or added to loop range. Select shortcut for this QDS-4941
m_playbackLoopTimeSteps << keyframe->mapFromSceneToFrame((keyframe->rect().center() + item->scenePos()).x());
m_aboutToSelectBuffer << keyframe;
} else if (auto *barItem = TimelineMovableAbstractItem::asTimelineBarItem(item)) {
QRectF rect = barItem->rect();
QPointF center = rect.center() + item->scenePos();
QPointF left = QPointF(rect.left(), 0) + item->scenePos();
QPointF right = QPointF(rect.right(), 0) + item->scenePos();
if (mode == SelectionMode::Add) { // TODO: Timeline bar item highlight with selection tool is added to loop range. Select shortcut for this QDS-4941
if (m_selectionRect->rect().contains(left))
m_playbackLoopTimeSteps << barItem->mapFromSceneToFrame(left.x());
if (m_selectionRect->rect().contains(right))
m_playbackLoopTimeSteps << barItem->mapFromSceneToFrame(right.x());
if (m_selectionRect->rect().contains(center))
m_playbackLoopTimeSteps << barItem->mapFromSceneToFrame(center.x());
} else if (mode == SelectionMode::Toggle && m_selectionRect->rect().contains(center)) { // TODO: Timeline bar item highlight with selection tool is set as loop range. Select shortcut for this QDS-4941
m_playbackLoopTimeSteps << barItem->mapFromSceneToFrame(left.x());
m_playbackLoopTimeSteps << barItem->mapFromSceneToFrame(right.x());
}
}
}
}
void TimelineSelectionTool::commitSelection(SelectionMode mode)
{
if (m_playbackLoopTimeSteps.count())
qobject_cast<TimelineGraphicsScene *>(scene())->layoutRuler()->extendPlaybackLoop(m_playbackLoopTimeSteps,
mode == SelectionMode::Toggle); // TODO: Highlighting items with selection tool is set or added to loop range. Select shortcut for this QDS-4941
scene()->selectKeyframes(mode, m_aboutToSelectBuffer);
m_aboutToSelectBuffer.clear();
m_playbackLoopTimeSteps.clear();
}
} // End namespace QmlDesigner.
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