Mike-Solar
b77344b506
New app/playback/playbackcontroller.{h,cpp}: a lazily created
process-wide singleton whose set_playhead() forwards to
oakengine_viewer_set_playhead and re-broadcasts playhead_changed as a
plain Qt signal. Every app-side oakengine_viewer_set_playhead call site
(17 across viewer, timelinewidget, timelineview, import tool,
timebasedwidget, keyframecontrol, export dialog, mainwindow) now goes
through it.
Migrate the first four playhead subscribers off the raw C event
subscription / EngineEventBridge to the controller signal:
- TimeBasedView (issue 1)
- NodeParamViewWidgetBridge (issue 2)
- NodeParamViewKeyframeControl (issue 3)
- NodeParamViewConnectedLabel (issue 4)
Each stores a QMetaObject::Connection filtered on its viewer node and
disconnects on teardown; the viewer_sub_ members are gone. Plan docs
mark issues 0c and 1-4 as done.
Closes #30, closes #31, closes #32, closes #51, closes #52.
51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
#ifndef OAK_PLAYBACKCONTROLLER_H
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#define OAK_PLAYBACKCONTROLLER_H
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#include <QObject>
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#include "oakengine/viewer.h"
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#include "olive/core/util/rational.h"
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namespace olive
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{
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/**
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* @brief App-internal hub for playhead changes (issue 0c of the
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* EventBridge elimination plan).
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*
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* Every app-side `oakengine_viewer_set_playhead` call site goes through
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* set_playhead(), which forwards to the engine and re-broadcasts
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* playhead_changed as a plain Qt signal. Widgets subscribe to that signal
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* instead of OAKENGINE_EVENT_VIEWER_PLAYHEAD_CHANGED via EngineEventBridge
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* or raw oakengine_event_subscribe callbacks.
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*/
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class PlaybackController : public QObject {
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Q_OBJECT
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public:
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/**
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* @brief Lazily created process-wide instance (leaked at exit, like
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* Core). Widget tests construct widgets without Core::Start(), so the
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* instance must not depend on explicit startup.
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*/
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static PlaybackController *instance();
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/**
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* @brief Move the playhead and notify app subscribers.
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*/
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void set_playhead(OakEngineNode *viewer, const core::Rational &time);
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void set_playhead(OakEngineNode *viewer, int64_t num, int64_t den);
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signals:
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void playhead_changed(OakEngineNode *viewer,
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const olive::core::Rational &time);
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private:
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explicit PlaybackController(QObject *parent = nullptr);
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static PlaybackController *instance_;
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};
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}
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#endif // OAK_PLAYBACKCONTROLLER_H
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