diff options
author | Oswald Buddenhagen <oswald.buddenhagen@qt.io> | 2017-10-06 11:49:09 +0000 |
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committer | Oswald Buddenhagen <oswald.buddenhagen@qt.io> | 2017-10-06 16:58:43 +0200 |
commit | 07840524085bd1785b8f9142b03d942f678c5c51 (patch) | |
tree | 499c1674fdd1b3e0c07688d8e4e56748dfea2ca3 /src/Authoring/Studio/Utils/ITickTock.h |
Initial import
Diffstat (limited to 'src/Authoring/Studio/Utils/ITickTock.h')
-rw-r--r-- | src/Authoring/Studio/Utils/ITickTock.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/Authoring/Studio/Utils/ITickTock.h b/src/Authoring/Studio/Utils/ITickTock.h new file mode 100644 index 00000000..2a3155bc --- /dev/null +++ b/src/Authoring/Studio/Utils/ITickTock.h @@ -0,0 +1,86 @@ +/**************************************************************************** +** +** Copyright (C) 2002 NVIDIA Corporation. +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of Qt 3D Studio. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#pragma once +#ifndef ITICKTOCKH +#define ITICKTOCKH + +namespace Q3DStudio { +class CString; +} + +namespace UICDM { +class ISignalConnection; +} + +QT_BEGIN_NAMESPACE +class QWidget; +QT_END_NAMESPACE + +typedef std::function<void()> TTickTockProc; + +namespace Q3DStudio { +/** + * ITickTock is meant for a relatively small number of scheduled + * events that need to happen on the UI thread. Clients can cancel + * any event simply by releasing the returned shared pointer. + * Interface is completely threadsafe and the returned signal connection + * may safely outlive the interface. + */ +class ITickTock +{ +protected: + virtual ~ITickTock() {} + static ITickTock *m_Instance; + +public: + // The timer is canceled if the shared ptr deletes the signal connection. Save to call from any + // thread. + // The callback, however, (inTickTockProc) will be activated solely from the UI thread. + virtual std::shared_ptr<UICDM::ISignalConnection> + AddTimer(unsigned long inTime, bool inIsPeriodic, TTickTockProc inTickTockProc, + const Q3DStudio::CString &inName) = 0; + + // Called from UI thread to process all of the messages + // that have happened in the timer thread. + // Clients should not generally call this, it will be take care of for them. + // In the current implementation, MainFrm.h processes the tick tock message + // in order to call this function. + virtual void ProcessMessages() = 0; + + friend class std::shared_ptr<ITickTock>; + + // m_Instance is set to the first tick tock created, and unset when that tick tock + // goes away. + static std::shared_ptr<ITickTock> CreateTickTock(long inMessageID, QWidget* inTarget); + + static ITickTock &GetInstance(); +}; +} + +#endif |