70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
#pragma once
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#include "core/domain/Project.h"
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#include <QWidget>
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class TimelineWidget final : public QWidget {
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Q_OBJECT
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public:
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explicit TimelineWidget(QWidget* parent = nullptr);
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void setFrameRange(int start, int end);
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void setCurrentFrame(int frame);
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int currentFrame() const { return m_currentFrame; }
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void setSelectionRange(int start, int end); // -1,-1 清除
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int selectionStart() const { return m_selStart; }
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int selectionEnd() const { return m_selEnd; }
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// 只显示“当前选中实体”的关键帧标记
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void setKeyframeTracks(const core::Project::Entity* entityOrNull);
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enum class KeyKind { None, Location, UserScale, Image };
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KeyKind selectedKeyKind() const { return m_selKeyKind; }
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int selectedKeyFrame() const { return m_selKeyFrame; }
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bool hasSelectedKeyframe() const { return m_selKeyKind != KeyKind::None && m_selKeyFrame >= 0; }
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signals:
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void frameScrubbed(int frame); // 拖动中实时触发（用于实时预览）
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void frameCommitted(int frame); // 松手/点击确认（用于较重的刷新）
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void contextMenuRequested(const QPoint& globalPos, int frame);
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void keyframeSelectionChanged(KeyKind kind, int frame);
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void intervalSelectionChanged(int start, int end);
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protected:
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void paintEvent(QPaintEvent*) override;
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void mousePressEvent(QMouseEvent*) override;
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void mouseMoveEvent(QMouseEvent*) override;
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void mouseReleaseEvent(QMouseEvent*) override;
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void wheelEvent(QWheelEvent*) override;
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private:
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int xToFrame(int x) const;
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int frameToX(int frame) const;
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QRect trackRect() const;
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void setFrameInternal(int frame, bool commit);
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private:
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int m_start = 0;
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int m_end = 600;
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int m_currentFrame = 0;
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int m_selStart = -1;
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int m_selEnd = -1;
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bool m_dragging = false;
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QPoint m_pressPos;
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bool m_moved = false;
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// snapshot（避免频繁遍历 workspace）
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QVector<int> m_locFrames;
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QVector<int> m_scaleFrames;
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QVector<int> m_imgFrames;
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KeyKind m_selKeyKind = KeyKind::None;
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int m_selKeyFrame = -1;
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};
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