107 lines
2.5 KiB
C++
107 lines
2.5 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2022 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 "viewerwindow.h"
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#include <QKeyEvent>
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#include <QVBoxLayout>
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#include "common/timecodefunctions.h"
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namespace olive {
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ViewerWindow::ViewerWindow(QWidget *parent) :
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QWidget(parent, Qt::Window | Qt::WindowStaysOnTopHint),
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pixel_aspect_(1)
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{
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QVBoxLayout* layout = new QVBoxLayout(this);
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layout->setMargin(0);
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layout->setSpacing(0);
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display_widget_ = new ViewerDisplayWidget();
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layout->addWidget(display_widget_);
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}
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ViewerDisplayWidget *ViewerWindow::display_widget() const
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{
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return display_widget_;
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}
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void ViewerWindow::SetVideoParams(const VideoParams ¶ms)
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{
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width_ = params.width();
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height_ = params.height();
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pixel_aspect_ = params.pixel_aspect_ratio();
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UpdateMatrix();
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}
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void ViewerWindow::SetResolution(int width, int height)
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{
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width_ = width;
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height_ = height;
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UpdateMatrix();
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}
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void ViewerWindow::SetPixelAspectRatio(const rational &pixel_aspect)
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{
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pixel_aspect_ = pixel_aspect;
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UpdateMatrix();
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}
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void ViewerWindow::keyPressEvent(QKeyEvent *e)
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{
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QWidget::keyPressEvent(e);
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if (e->key() == Qt::Key_Escape) {
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close();
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}
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}
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void ViewerWindow::closeEvent(QCloseEvent *e)
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{
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QWidget::closeEvent(e);
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deleteLater();
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}
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void ViewerWindow::UpdateMatrix()
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{
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// Set GL widget matrix to maintain this texture's aspect ratio
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double window_ar = static_cast<double>(this->width()) / static_cast<double>(this->height());
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double image_ar = static_cast<double>(width_) / static_cast<double>(height_) * pixel_aspect_.toDouble();
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QMatrix4x4 mat;
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if (window_ar > image_ar) {
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// Window is wider than image, adjust X scale
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mat.scale(image_ar / window_ar, 1.0f, 1.0f);
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} else if (window_ar < image_ar) {
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// Window is taller than image, adjust Y scale
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mat.scale(1.0f, window_ar / image_ar, 1.0f);
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}
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display_widget_->SetMatrixZoom(mat);
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}
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}
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