45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
#include <QTimer>
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#include "toonz/tscenehandle.h"
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#include "toonz/toonzscene.h"
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#include "toonz/tproject.h"
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//=============================================================================
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// TSceneHandle
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//-----------------------------------------------------------------------------
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TSceneHandle::TSceneHandle() : m_scene(0), m_dirtyFlag(false) {}
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//-----------------------------------------------------------------------------
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TSceneHandle::~TSceneHandle() {}
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//-----------------------------------------------------------------------------
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ToonzScene *TSceneHandle::getScene() const { return m_scene; }
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//-----------------------------------------------------------------------------
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void TSceneHandle::setScene(ToonzScene *scene) {
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if (m_scene == scene) return;
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emit sceneSwitching();
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ToonzScene *oldscene = m_scene;
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m_scene = scene;
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if (m_scene) emit sceneSwitched();
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// Prevent memory corruption caused by delayed signals writing into the
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// discarded old scene while that memory was freed.
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// That made OT had a chance of crashing when project or scene changed rapidly.
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// Note: This is not the best solution but "it just works"
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if (oldscene) {
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QTimer *delayedTimer = new QTimer(this);
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delayedTimer->setSingleShot(true);
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connect(delayedTimer, &QTimer::timeout, [=]() {
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delete oldscene;
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delayedTimer->deleteLater();
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});
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delayedTimer->start(3000); // 1 sec was enough, but... dunno about toasters
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}
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}
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