115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
#pragma once
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#include <QWidget>
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#include <QImage>
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#include <QString>
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#include <QPoint>
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#include <QTimer>
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class QSlider;
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class QPushButton;
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class QLabel;
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class VideoPlayerEngine;
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/* Отрисовка кадра на чёрном фоне. zoomEnabled включает колесо до физического 1:1 и drag с ограничением краёв. */
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class VideoRenderWidget : public QWidget {
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Q_OBJECT
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public:
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explicit VideoRenderWidget(QWidget* parent = nullptr, bool zoomEnabled = false);
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void setFrame(const QImage& img);
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void clearFrame();
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protected:
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bool event(QEvent* event) override;
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void paintEvent(QPaintEvent* event) override;
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void resizeEvent(QResizeEvent* event) override;
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void wheelEvent(QWheelEvent* event) override;
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void mousePressEvent(QMouseEvent* event) override;
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void mouseMoveEvent(QMouseEvent* event) override;
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void mouseReleaseEvent(QMouseEvent* event) override;
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private:
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qreal frameScale() const;
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void constrainView(const char* reason);
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void finishDrag();
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QImage m_frame;
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const bool m_zoomEnabled;
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qreal m_scale = 0; // Физические пиксели на пиксель кадра; 0 — автоматическое вписывание.
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QPointF m_offset; // Смещение от центра в пикселях исходного кадра.
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QPointF m_lastMouse;
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bool m_panning = false;
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};
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/* Отдельное окно плеера без рамки: drag-перенос, dblclick/Alt+Enter — fullscreen,
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* Esc — выход/закрытие, timeline + play/pause/close. */
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class VideoPlayerWindow : public QWidget {
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Q_OBJECT
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public:
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explicit VideoPlayerWindow(QWidget* parent = nullptr);
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~VideoPlayerWindow() override;
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void playFile(const QString& path);
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signals:
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void closed();
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protected:
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void keyPressEvent(QKeyEvent* event) override;
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void mousePressEvent(QMouseEvent* event) override;
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void mouseMoveEvent(QMouseEvent* event) override;
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void mouseReleaseEvent(QMouseEvent* event) override;
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void mouseDoubleClickEvent(QMouseEvent* event) override;
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void closeEvent(QCloseEvent* event) override;
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void resizeEvent(QResizeEvent* event) override;
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bool eventFilter(QObject* obj, QEvent* event) override;
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private slots:
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void onEngineOpened(int width, int height, qint64 durationMs, bool hasAudio);
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void onPositionChanged(qint64 ms);
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void onStateChanged(int state);
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void onError(const QString& msg);
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void onFramePresented();
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void onSliderPressed();
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void onSliderReleased();
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void onPlayPause();
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void onClose();
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void onFinished();
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void showControls();
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void hideControls();
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private:
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enum ResizeMode {
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ResizeNone = 0,
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ResizeLeft, ResizeRight, ResizeTop, ResizeBottom,
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ResizeTopLeft, ResizeTopRight, ResizeBottomLeft, ResizeBottomRight
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};
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void toggleFullscreen();
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void updateTimeLabels(qint64 posMs);
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void setControlsVisible(bool visible);
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QSize fitWindowSize(int vw, int vh) const;
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ResizeMode hitTestResize(const QPoint& localPos) const;
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void updateResizeCursor(const QPoint& localPos);
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void applyResize(const QPoint& globalPos);
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void beginResize(ResizeMode m, const QPoint& globalPos);
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VideoRenderWidget* m_render = nullptr;
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QWidget* m_controls = nullptr;
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QSlider* m_slider = nullptr;
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QPushButton* m_playBtn = nullptr;
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QPushButton* m_closeBtn = nullptr;
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QLabel* m_timeLabel = nullptr;
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VideoPlayerEngine* m_engine = nullptr;
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bool m_fullscreen = false;
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bool m_sliderDragging = false;
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bool m_dragging = false;
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QPoint m_dragStart;
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QPoint m_windowStart;
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ResizeMode m_resizeMode = ResizeNone;
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QRect m_resizeStartGeom;
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QPoint m_resizeStartGlobal;
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QTimer* m_hideTimer = nullptr;
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};
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