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timeline: use consistent x offsets for thumbnails

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This commit is contained in:
itsmattkc
2022-07-02 17:52:24 -05:00
parent 7e1792cfea
commit 6716a7173b
1 changed files with 15 additions and 13 deletions
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app/widget/timelinewidget/view/timelineview.cpp
+15 -13
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@@ -527,22 +527,24 @@ void TimelineView::DrawBlock(QPainter *painter, bool foreground, Block *block, q
QRect thumb_rect;
painter->setClipRect(preview_rect);
painter->setRenderHint(QPainter::SmoothPixmapTransform);
for (int i=preview_rect.left(); i<preview_rect.right(); i+=thumb_rect.width()+1) {
Sequence *s = clip->track()->sequence();
int width = s->GetVideoParams().width();
int height = s->GetVideoParams().height();
int start;
if (height > 0) { // Prevent divide by zero/invalid params
double scale = double(preview_rect.height())/double(height);
thumb_rect.setWidth(width * scale);
start = (preview_rect.left() - int(qFloor(block_in))) / thumb_rect.width() + qFloor(block_in);
} else {
start = preview_rect.left();
}
for (int i=start; i<preview_rect.right(); i+=thumb_rect.width()+1) {
rational time_here = SceneToTime(i - block_in, GetScale(), connected_track_list_->parent()->GetVideoParams().frame_rate_as_time_base()) + media_in;
QString thumbnail = thumbs->GetValidCacheFilename(time_here);
if (thumbnail.isEmpty()) {
// Jump ahead to next frame, ensuring that frame width > 0 for optimization
if (thumb_rect.width() == 0 && clip->track() && clip->track()->sequence()) {
Sequence *s = clip->track()->sequence();
int width = s->GetVideoParams().width();
int height = s->GetVideoParams().height();
if (height > 0) { // Prevent divide by zero/invalid params
double scale = double(preview_rect.height())/double(height);
thumb_rect.setWidth(width * scale);
}
}
} else {
if (!thumbnail.isEmpty()) {
QImage img;
if (img.load(thumbnail, "jpg")) {
double scale = double(preview_rect.height())/double(img.height());