84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2020 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/timelinewidget/timelinewidget.h"
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#include <QToolTip>
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#include "common/timecodefunctions.h"
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#include "config/config.h"
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#include "slip.h"
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namespace olive {
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SlipTool::SlipTool(TimelineWidget *parent) :
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PointerTool(parent)
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{
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SetTrimmingAllowed(false);
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SetTrackMovementAllowed(false);
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}
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void SlipTool::ProcessDrag(const TimelineCoordinate &mouse_pos)
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{
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// Determine frame movement
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rational time_movement = drag_start_.GetFrame() - mouse_pos.GetFrame();
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// Validate slip (enforce all ghosts moving in legal ways)
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foreach (TimelineViewGhostItem* ghost, parent()->GetGhostItems()) {
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if (ghost->GetMediaIn() + time_movement < 0) {
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time_movement = -ghost->GetMediaIn();
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}
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}
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// Perform slip
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foreach (TimelineViewGhostItem* ghost, parent()->GetGhostItems()) {
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ghost->SetMediaInAdjustment(time_movement);
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}
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// Generate tooltip and force it to to update (otherwise the tooltip won't move as written in the
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// documentation, and could get in the way of the cursor)
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rational tooltip_timebase = parent()->GetTimebaseForTrackType(drag_start_.GetTrack().type());
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QToolTip::hideText();
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QToolTip::showText(QCursor::pos(),
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Timecode::timestamp_to_timecode(Timecode::time_to_timestamp(time_movement, tooltip_timebase),
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tooltip_timebase,
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Core::instance()->GetTimecodeDisplay(),
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true),
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parent());
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}
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void SlipTool::FinishDrag(TimelineViewMouseEvent *event)
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{
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Q_UNUSED(event)
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MultiUndoCommand* command = new MultiUndoCommand();
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// Find earliest point to ripple around
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foreach (TimelineViewGhostItem* ghost, parent()->GetGhostItems()) {
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Block* b = Node::ValueToPtr<Block>(ghost->GetData(TimelineViewGhostItem::kAttachedBlock));
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command->add_child(new BlockSetMediaInCommand(b, ghost->GetAdjustedMediaIn()));
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}
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Core::instance()->undo_stack()->pushIfHasChildren(command);
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}
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}
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