110 lines
3.1 KiB
C++
110 lines
3.1 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2019 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "widget/timelineview/timelineview.h"
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TimelineView::PointerTool::PointerTool(TimelineView *parent) :
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Tool(parent)
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{
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}
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void FlipControlAndShiftModifiers(QMouseEvent* e) {
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if (e->modifiers() & Qt::ControlModifier & Qt::ShiftModifier) {
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return;
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}
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if (e->modifiers() & Qt::ShiftModifier) {
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e->setModifiers((e->modifiers() | Qt::ControlModifier) & ~Qt::ShiftModifier);
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} else if (e->modifiers() & Qt::ControlModifier) {
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e->setModifiers((e->modifiers() | Qt::ShiftModifier) & ~Qt::ControlModifier);
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}
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}
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void TimelineView::PointerTool::MousePress(QMouseEvent *event)
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{
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FlipControlAndShiftModifiers(event);
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parent()->QGraphicsView::mousePressEvent(event);
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}
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void TimelineView::PointerTool::MouseMove(QMouseEvent *event)
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{
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FlipControlAndShiftModifiers(event);
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parent()->QGraphicsView::mouseMoveEvent(event);
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if (!dragging_) {
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// Let's see if there's anything selected to drag
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if (parent()->itemAt(event->pos()) != nullptr) {
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QList<QGraphicsItem*> selected_items = parent()->scene_.selectedItems();
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foreach (QGraphicsItem* item, selected_items) {
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TimelineViewGhostItem* ghost = new TimelineViewGhostItem();
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TimelineViewClipItem* clip_item = static_cast<TimelineViewClipItem*>(item);
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ClipBlock* clip = clip_item->clip();
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ghost->SetIn(clip->in());
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ghost->SetOut(clip->out());
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ghost->SetScale(parent()->scale_);
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ghost->setPos(clip_item->pos());
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parent()->ghost_items_.append(ghost);
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parent()->scene_.addItem(ghost);
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}
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drag_start_ = event->pos();
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}
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dragging_ = true;
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} else if (!parent()->ghost_items_.isEmpty()) {
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QPoint movement = event->pos() - drag_start_;
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rational time_movement = parent()->ScreenToTime(movement.x());
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// Validate movement
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foreach (TimelineViewGhostItem* ghost, parent()->ghost_items_) {
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rational validator = ghost->In() + time_movement;
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if (validator < 0) {
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time_movement = rational(0) - ghost->In();
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}
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}
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// Perform movement
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foreach (TimelineViewGhostItem* ghost, parent()->ghost_items_) {
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ghost->SetInAdjustment(time_movement);
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ghost->SetOutAdjustment(time_movement);
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}
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}
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}
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void TimelineView::PointerTool::MouseRelease(QMouseEvent *event)
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{
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FlipControlAndShiftModifiers(event);
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parent()->QGraphicsView::mouseReleaseEvent(event);
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parent()->ClearGhosts();
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dragging_ = false;
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}
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