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timeline: draw zebra stripes on out of bounds areas

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This commit is contained in:
itsmattkc
2021-10-21 12:08:22 -07:00
parent 963607b7d3
commit 89558d389e
2 changed files with 46 additions and 3 deletions
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app/widget/timelinewidget/view/timelineview.cpp
+44 -3
View File
@@ -485,14 +485,33 @@ void TimelineView::DrawBlock(QPainter *painter, bool foreground, Block *block, q
painter->setBrush(block->is_enabled() ? block->brush(block_top, block_top + block_height) : Qt::gray);
painter->drawRect(r);
// Draw waveform
if (show_waveforms_) {
if (ClipBlock *clip = dynamic_cast<ClipBlock*>(block)) {
if (ClipBlock *clip = dynamic_cast<ClipBlock*>(block)) {
// Draw waveform
if (show_waveforms_) {
QRect waveform_rect = r.adjusted(0, text_total_height, 0, 0).toRect();
painter->setPen(shadow_color);
AudioVisualWaveform::DrawWaveform(painter, waveform_rect, this->GetScale(), clip->waveform(),
SceneToTime(block_left - block_in, GetScale(), connected_track_list_->parent()->GetAudioParams().sample_rate_as_time_base()));
}
// Draw zebra stripes
if (clip->connected_viewer() && !clip->connected_viewer()->GetLength().isNull()) {
if (clip->media_in() < 0) {
// Draw stripes for sections of clip < 0
qreal zebra_right = TimeToScene(-clip->media_in());
if (zebra_right > GetTimelineLeftBound()) {
DrawZebraStripes(painter, QRectF(block_left, block_top, zebra_right, block_height));
}
}
if (clip->length() + clip->media_in() > clip->connected_viewer()->GetLength()) {
// Draw stripes for sections for clip > clip length
qreal zebra_left = TimeToScene(clip->out() - (clip->media_in() + clip->length() - clip->connected_viewer()->GetLength()));
if (zebra_left < GetTimelineRightBound()) {
DrawZebraStripes(painter, QRectF(zebra_left, block_top, block_right - zebra_left, block_height));
}
}
}
}
// For transitions, show lines representing a transition
@@ -540,6 +559,28 @@ void TimelineView::DrawBlock(QPainter *painter, bool foreground, Block *block, q
}
}
void TimelineView::DrawZebraStripes(QPainter *painter, const QRectF &r)
{
int zebra_interval = fontMetrics().height();
painter->setPen(QPen(QColor(0, 0, 0, 128), zebra_interval/4));
painter->setBrush(Qt::NoBrush);
QVector<QLineF> lines;
lines.reserve(qCeil(r.width() / zebra_interval));
qreal left = r.left() - r.height();
qreal right = r.right() + r.height();
for (qreal i=left; i<right; i+=zebra_interval) {
lines.append(QLineF(i, r.top(), i - r.height(), r.bottom()));
}
painter->setClipRect(r);
painter->drawLines(lines);
painter->setClipping(false);
}
int TimelineView::GetHeightOfAllTracks() const
{
if (connected_track_list_) {
app/widget/timelinewidget/view/timelineview.h
+2
View File
@@ -130,6 +130,8 @@ private:
DrawBlock(painter, foreground, block, top, height, block->in(), block->out());
}
void DrawZebraStripes(QPainter *painter, const QRectF &r);
int GetHeightOfAllTracks() const;
void UpdatePlayheadRect();