itsmattkc
d7c5ac4b44
Project items are now represented directly in nodes opening up more versatility and possibilities. This is the first iteration of this and will be buggy. Need to test thoroughly.
146 lines
3.4 KiB
C++
146 lines
3.4 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 "node/block/transition/transition.h"
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namespace olive {
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TimelineTool::TimelineTool(TimelineWidget *parent) :
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dragging_(false),
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parent_(parent)
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{
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}
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TimelineTool::~TimelineTool()
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{
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}
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TimelineWidget *TimelineTool::parent()
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{
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return parent_;
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}
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Sequence *TimelineTool::sequence()
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{
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return parent_->sequence();
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}
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Timeline::MovementMode TimelineTool::FlipTrimMode(const Timeline::MovementMode &trim_mode)
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{
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if (trim_mode == Timeline::kTrimIn) {
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return Timeline::kTrimOut;
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}
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if (trim_mode == Timeline::kTrimOut) {
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return Timeline::kTrimIn;
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}
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return trim_mode;
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}
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rational TimelineTool::SnapMovementToTimebase(const rational &start, rational movement, const rational &timebase)
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{
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rational proposed_position = start + movement;
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rational snapped = Timecode::snap_time_to_timebase(proposed_position, timebase);
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if (proposed_position != snapped) {
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movement += snapped - proposed_position;
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}
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return movement;
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}
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rational TimelineTool::ValidateTimeMovement(rational movement)
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{
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bool first_ghost = true;
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foreach (TimelineViewGhostItem* ghost, parent()->GetGhostItems()) {
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if (ghost->GetMode() != Timeline::kMove) {
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continue;
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}
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// Prevents any ghosts from going below 0:00:00 time
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if (ghost->GetIn() + movement < 0) {
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movement = -ghost->GetIn();
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} else if (first_ghost) {
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// Ensure ghost is snapped to a grid
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movement = SnapMovementToTimebase(ghost->GetIn(), movement, parent()->GetTimebaseForTrackType(ghost->GetTrack().type()));
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first_ghost = false;
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}
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}
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return movement;
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}
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int TimelineTool::ValidateTrackMovement(int movement, const QVector<TimelineViewGhostItem*>& ghosts)
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{
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foreach (TimelineViewGhostItem* ghost, ghosts) {
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if (ghost->GetMode() != Timeline::kMove) {
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continue;
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}
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if (!ghost->GetCanMoveTracks()) {
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return 0;
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} else if (ghost->GetTrack().index() + movement < 0) {
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// Prevents any ghosts from going to a non-existent negative track
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movement = -ghost->GetTrack().index();
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}
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}
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return movement;
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}
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void TimelineTool::GetGhostData(rational *earliest_point, rational *latest_point)
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{
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rational ep = RATIONAL_MAX;
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rational lp = RATIONAL_MIN;
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foreach (TimelineViewGhostItem* ghost, parent()->GetGhostItems()) {
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ep = qMin(ep, ghost->GetAdjustedIn());
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lp = qMax(lp, ghost->GetAdjustedOut());
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}
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if (earliest_point) {
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*earliest_point = ep;
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}
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if (latest_point) {
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*latest_point = lp;
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}
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}
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void TimelineTool::InsertGapsAtGhostDestination(olive::MultiUndoCommand *command)
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{
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rational earliest_point, latest_point;
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GetGhostData(&earliest_point, &latest_point);
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parent()->InsertGapsAt(earliest_point, latest_point - earliest_point, command);
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}
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}
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