106 lines
2.9 KiB
C++
106 lines
2.9 KiB
C++
#include "widget/timelinewidget/timelinewidget.h"
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#include "core.h"
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#include "widget/nodeview/nodeviewundo.h"
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TimelineWidget::AddTool::AddTool(TimelineWidget *parent) :
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Tool(parent),
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ghost_(nullptr)
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{
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}
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void TimelineWidget::AddTool::MousePress(TimelineViewMouseEvent *event)
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{
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const TrackReference& track = event->GetTrack();
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TrackOutput* t = parent()->GetTrackFromReference(track);
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if (t && t->IsLocked()) {
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return;
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}
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drag_start_point_ = event->GetFrame();
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ghost_ = new TimelineViewGhostItem();
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ghost_->SetIn(drag_start_point_);
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ghost_->SetOut(drag_start_point_);
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ghost_->SetTrack(track);
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ghost_->SetYCoords(parent()->GetTrackY(track), parent()->GetTrackHeight(track));
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parent()->AddGhost(ghost_);
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snap_points_.append(drag_start_point_);
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}
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void TimelineWidget::AddTool::MouseMove(TimelineViewMouseEvent *event)
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{
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if (!ghost_) {
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return;
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}
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MouseMoveInternal(event->GetFrame(), event->GetModifiers() & Qt::AltModifier);
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}
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void TimelineWidget::AddTool::MouseRelease(TimelineViewMouseEvent *event)
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{
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MouseMove(event);
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const TrackReference& track = ghost_->Track();
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if (ghost_) {
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if (!ghost_->AdjustedLength().isNull()) {
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QUndoCommand* command = new QUndoCommand();
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ClipBlock* clip = new ClipBlock();
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clip->set_length_and_media_out(ghost_->AdjustedLength());
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new NodeAddCommand(static_cast<NodeGraph*>(parent()->timeline_node_->parent()),
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clip,
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command);
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new TrackPlaceBlockCommand(parent()->timeline_node_->track_list(track.type()),
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track.index(),
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clip,
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ghost_->GetAdjustedIn(),
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command);
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Core::instance()->undo_stack()->push(command);
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}
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parent()->ClearGhosts();
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snap_points_.clear();
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ghost_ = nullptr;
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}
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}
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void TimelineWidget::AddTool::MouseMoveInternal(const rational &cursor_frame, bool outwards)
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{
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// Calculate movement
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rational movement = cursor_frame - drag_start_point_;
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// Snap movement
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bool snapped = SnapPoint(snap_points_, &movement);
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// If alt is held, our movement goes both ways (outwards)
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if (!snapped && outwards) {
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// Snap backwards too
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movement = -movement;
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SnapPoint(snap_points_, &movement);
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// We don't need to un-neg here because outwards means all future processing will be done both pos and neg
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}
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// Validation: Ensure in point never goes below 0
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if (movement < -ghost_->In() || (outwards && -movement < -ghost_->In())) {
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movement = -ghost_->In();
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}
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// Make adjustment
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if (!movement) {
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ghost_->SetInAdjustment(0);
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ghost_->SetOutAdjustment(0);
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} else if (movement > 0) {
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ghost_->SetInAdjustment(outwards ? -movement : 0);
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ghost_->SetOutAdjustment(movement);
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} else if (movement < 0) {
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ghost_->SetInAdjustment(movement);
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ghost_->SetOutAdjustment(outwards ? -movement : 0);
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}
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}
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