160 lines
4.1 KiB
C++
160 lines
4.1 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/timelinewidget/timelinewidget.h"
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#include "node/block/transition/transition.h"
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#include "widget/nodeview/nodeviewundo.h"
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OLIVE_NAMESPACE_ENTER
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TimelineWidget::Tool::Tool(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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TimelineWidget::Tool::~Tool()
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{
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}
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TimelineWidget *TimelineWidget::Tool::parent()
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{
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return parent_;
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}
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Timeline::MovementMode TimelineWidget::Tool::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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TimelineViewBlockItem *TimelineWidget::Tool::GetItemAtScenePos(const TimelineCoordinate& coord)
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{
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QMapIterator<Block*, TimelineViewBlockItem*> iterator(parent()->block_items_);
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while (iterator.hasNext()) {
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iterator.next();
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Block* b = iterator.key();
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TimelineViewBlockItem* item = iterator.value();
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if (b->in() <= coord.GetFrame()
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&& b->out() > coord.GetFrame()
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&& item->Track() == coord.GetTrack()) {
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return item;
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}
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}
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return nullptr;
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}
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rational TimelineWidget::Tool::ValidateTimeMovement(rational movement, const QVector<TimelineViewGhostItem *> ghosts)
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{
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foreach (TimelineViewGhostItem* ghost, ghosts) {
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if (ghost->mode() != Timeline::kMove) {
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continue;
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}
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Block* block = Node::ValueToPtr<Block>(ghost->data(TimelineViewGhostItem::kAttachedBlock));
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if (block && block->type() == Block::kTransition) {
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TransitionBlock* transition = static_cast<TransitionBlock*>(block);
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// Dual transitions are only allowed to move so that neither of their offsets are < 0
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if (transition->connected_in_block() && transition->connected_out_block()) {
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if (movement > transition->out_offset()) {
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movement = transition->out_offset();
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}
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if (movement < -transition->in_offset()) {
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movement = -transition->in_offset();
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}
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}
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}
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// Prevents any ghosts from going below 0:00:00 time
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if (ghost->In() + movement < 0) {
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movement = -ghost->In();
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}
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}
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return movement;
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}
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int TimelineWidget::Tool::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->mode() != Timeline::kMove) {
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continue;
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}
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if (!ghost->CanMoveTracks()) {
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movement = 0;
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} else if (ghost->Track().index() + movement < 0) {
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// Prevents any ghosts from going to a non-existent negative track
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movement = -ghost->Track().index();
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}
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}
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return movement;
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}
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void TimelineWidget::Tool::GetGhostData(const QVector<TimelineViewGhostItem *> &ghosts, 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()->ghost_items_) {
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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 TimelineWidget::Tool::InsertGapsAtGhostDestination(const QVector<TimelineViewGhostItem *> &ghosts, QUndoCommand *command)
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{
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rational earliest_point, latest_point;
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GetGhostData(ghosts, &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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OLIVE_NAMESPACE_EXIT
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