itsmattkc
28dcff10c0
Implements the following: - Sequences have pixel aspect ratios that work in tandem with footage PARs to render footage correctly. Viewer and export also acknowledge PARs - Sequences can have interlacing settings. This doesn't do anything yet, eventually the renderer will need to interlace/deinterlace/reinterlace appropriately in order to conform all the footage to the sequence. Export acknowledges interlacing, but this only affects metadata, not the image.
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) 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 "viewersizer.h"
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#include <QMatrix4x4>
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OLIVE_NAMESPACE_ENTER
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ViewerSizer::ViewerSizer(QWidget *parent) :
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QWidget(parent),
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widget_(nullptr),
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width_(0),
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height_(0),
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pixel_aspect_(1),
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zoom_(0)
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{
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}
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void ViewerSizer::SetWidget(QWidget *widget)
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{
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// Delete any previous widgets occupying this space
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delete widget_;
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widget_ = widget;
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if (widget_ != nullptr) {
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widget_->setParent(this);
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UpdateSize();
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}
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}
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void ViewerSizer::SetChildSize(int width, int height)
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{
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width_ = width;
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height_ = height;
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UpdateSize();
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}
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void ViewerSizer::SetPixelAspectRatio(const rational &pixel_aspect)
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{
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pixel_aspect_ = pixel_aspect;
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UpdateSize();
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}
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void ViewerSizer::SetZoom(int percent)
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{
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zoom_ = percent;
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UpdateSize();
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}
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void ViewerSizer::resizeEvent(QResizeEvent *event)
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{
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QWidget::resizeEvent(event);
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UpdateSize();
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}
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void ViewerSizer::UpdateSize()
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{
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if (widget_ == nullptr) {
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return;
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}
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// If the aspect ratio is 0, the widget is always hidden
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if (!width_ || !height_) {
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widget_->setVisible(false);
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return;
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}
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widget_->setVisible(true);
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QSize child_size;
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QMatrix4x4 child_matrix;
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double sequence_aspect_ratio = static_cast<double>(width_) / static_cast<double>(height_) * pixel_aspect_.toDouble();
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if (zoom_ <= 0) {
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// If zoom is 0, we auto-fit
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double our_aspect_ratio = static_cast<double>(width()) / static_cast<double>(height());
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child_size = size();
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if (our_aspect_ratio > sequence_aspect_ratio) {
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// This container is wider than the image, scale by height
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child_size = QSize(qRound(child_size.height() * sequence_aspect_ratio), height());
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} else {
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// This container is taller than the image, scale by width
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child_size = QSize(width(), qRound(child_size.width() / sequence_aspect_ratio));
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}
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} else {
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float x_scale = 1.0f;
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float y_scale = 1.0f;
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int zoomed_width = qRound(width_ * static_cast<double>(zoom_) * 0.01);
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int zoomed_height = qRound(height_ * static_cast<double>(zoom_) * 0.01);
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if (zoomed_width > width()) {
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x_scale = static_cast<double>(zoomed_width) / static_cast<double>(width());
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zoomed_width = width();
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}
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if (zoomed_height > height()) {
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y_scale = static_cast<double>(zoomed_height) / static_cast<double>(height());
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zoomed_height = height();
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}
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// Rather than make a huge surface, we still crop at our width/height and then signal a matrix
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child_matrix.scale(x_scale, y_scale, 1.0F);
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child_size = QSize(zoomed_width, zoomed_height);
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}
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widget_->resize(child_size);
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widget_->move(width() / 2 - child_size.width() / 2, height() / 2 - child_size.height() / 2);
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emit RequestMatrix(child_matrix);
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}
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OLIVE_NAMESPACE_EXIT
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