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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "timelinemovetool.h"
#include "timelinegraphicsscene.h"
#include "timelinemovableabstractitem.h"
#include "timelinepropertyitem.h"
#include "timelineview.h"
#include <exception.h>
#include <QApplication>
#include <QGraphicsScene>
#include <QGraphicsSceneMouseEvent>
#include <cmath>
namespace QmlDesigner {
static QPointF mapPointToItem(TimelineMovableAbstractItem *item, const QPointF &pos)
{
if (auto parent = item->parentItem())
return parent->mapFromScene(pos);
return pos;
}
QPointF mapToItem(TimelineMovableAbstractItem *item, const QPointF &pos)
{
if (auto parent = item->parentItem())
return parent->mapFromScene(pos);
return pos;
}
QPointF mapToItem(TimelineMovableAbstractItem *item, QGraphicsSceneMouseEvent *event)
{
if (auto parent = item->parentItem())
return parent->mapFromScene(event->scenePos());
return event->scenePos();
}
TimelineMoveTool::TimelineMoveTool(AbstractScrollGraphicsScene *scene, TimelineToolDelegate *delegate)
: TimelineAbstractTool(scene, delegate)
{}
void TimelineMoveTool::mousePressEvent([[maybe_unused]] TimelineMovableAbstractItem *item,
QGraphicsSceneMouseEvent *event)
{
if (currentItem() && currentItem()->isLocked())
return;
TimelineGraphicsScene *graphicsScene = qobject_cast<TimelineGraphicsScene *>(scene());
if (event->modifiers().testFlag(Qt::ControlModifier) && graphicsScene) { // TODO: Timeline bar animation is set as loop range. Select shortcut for this QDS-4941
if (auto *current = currentItem()->asTimelineBarItem()) {
qreal left = qRound(current->mapFromSceneToFrame(current->rect().left()));
qreal right = qRound(current->mapFromSceneToFrame(current->rect().right()));
const QList<qreal> positions = {left, right};
graphicsScene->layoutRuler()->extendPlaybackLoop(positions, event->modifiers().testFlag(Qt::ShiftModifier));
}
}
if (auto *current = currentItem()->asTimelineKeyframeItem()) {
const qreal sourceFrame = qRound(current->mapFromSceneToFrame(current->rect().center().x()));
const qreal targetFrame = qRound(current->mapFromSceneToFrame(event->scenePos().x()));
m_pressKeyframeDelta = targetFrame - sourceFrame;
if (event->modifiers().testFlag(Qt::ControlModifier) && graphicsScene) {
const QList<qreal> positions = {sourceFrame};
graphicsScene->layoutRuler()->extendPlaybackLoop(positions, false);
}
}
}
void TimelineMoveTool::mouseMoveEvent([[maybe_unused]] TimelineMovableAbstractItem *item,
QGraphicsSceneMouseEvent *event)
{
if (!currentItem())
return;
if (currentItem()->isLocked())
return;
if (auto *current = currentItem()->asTimelineKeyframeItem()) {
// prevent dragging if deselecting a keyframe (Ctrl+click and drag a selected keyframe)
if (!current->highlighted())
return;
const qreal sourceFrame = qRound(current->mapFromSceneToFrame(current->rect().center().x()));
qreal targetFrame = qRound(current->mapFromSceneToFrame(event->scenePos().x()));
qreal deltaFrame = targetFrame - sourceFrame - m_pressKeyframeDelta;
const qreal minFrame = scene()->startFrame();
const qreal maxFrame = scene()->endFrame();
auto bbox = scene()->selectionBounds().adjusted(TimelineConstants::keyFrameSize / 2, 0,
-TimelineConstants::keyFrameSize / 2, 0);
double firstFrame = std::round(current->mapFromSceneToFrame(bbox.left()));
double lastFrame = std::round(current->mapFromSceneToFrame(bbox.right()));
if (lastFrame + deltaFrame > maxFrame)
deltaFrame = maxFrame - lastFrame;
else if (firstFrame + deltaFrame < minFrame)
deltaFrame = minFrame - firstFrame;
targetFrame = sourceFrame + deltaFrame;
if (QApplication::keyboardModifiers() & Qt::ShiftModifier) { // keyframe snapping
qreal snappedTargetFrame = scene()->snap(targetFrame);
deltaFrame += snappedTargetFrame - targetFrame;
targetFrame = snappedTargetFrame;
}
emit scene()->statusBarMessageChanged(tr(TimelineConstants::statusBarKeyframe)
.arg(targetFrame));
const QList<TimelineKeyframeItem *> selectedKeyframes = scene()->selectedKeyframes();
for (auto *keyframe : selectedKeyframes) {
qreal pos = std::round(keyframe->mapFromSceneToFrame(keyframe->rect().center().x()));
keyframe->setPosition(pos + deltaFrame);
}
} else {
currentItem()->itemMoved(mapPointToItem(currentItem(), startPosition()),
mapToItem(currentItem(), event));
}
}
void TimelineMoveTool::mouseReleaseEvent([[maybe_unused]] TimelineMovableAbstractItem *item,
QGraphicsSceneMouseEvent *event)
{
if (auto *current = currentItem()) {
if (current->asTimelineFrameHandle()) {
double mousePos = event->scenePos().x();
double start = current->mapFromFrameToScene(scene()->startFrame());
double end = current->mapFromFrameToScene(scene()->endFrame());
double limitFrame = -999999.;
if (mousePos < start)
limitFrame = scene()->startFrame();
else if (mousePos > end)
limitFrame = scene()->endFrame();
if (limitFrame > -999999.) {
scene()->setCurrentFrame(limitFrame);
emit scene()->statusBarMessageChanged(
tr(TimelineConstants::statusBarPlayheadFrame).arg(limitFrame));
return;
}
}
scene()->abstractView()->executeInTransaction("TimelineMoveTool::mouseReleaseEvent",
[this, current]() {
current->commitPosition(mapToItem(current, current->rect().center()));
if (current->asTimelineKeyframeItem()) {
double frame = std::round(
current->mapFromSceneToFrame(current->rect().center().x()));
scene()->statusBarMessageChanged(
tr(TimelineConstants::statusBarKeyframe).arg(frame));
const auto selectedKeyframes = scene()->selectedKeyframes();
for (auto keyframe : selectedKeyframes) {
if (keyframe != current)
keyframe->commitPosition(mapToItem(current, keyframe->rect().center()));
}
}
});
}
}
void TimelineMoveTool::mouseDoubleClickEvent([[maybe_unused]] TimelineMovableAbstractItem *item,
[[maybe_unused]] QGraphicsSceneMouseEvent *event)
{
}
void TimelineMoveTool::keyPressEvent([[maybe_unused]] QKeyEvent *keyEvent) {}
void TimelineMoveTool::keyReleaseEvent([[maybe_unused]] QKeyEvent *keyEvent) {}
} // namespace QmlDesigner
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