143 lines
3.8 KiB
C++
143 lines
3.8 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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struct _XDisplay;
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namespace juce
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{
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typedef ::_XDisplay* XDisplay;
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typedef unsigned long AtomType;
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typedef unsigned long WindowType;
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//==============================================================================
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class XWindowSystem : public DeletedAtShutdown
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{
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public:
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XDisplay displayRef() noexcept;
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XDisplay displayUnref() noexcept;
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JUCE_DECLARE_SINGLETON (XWindowSystem, false)
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private:
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XDisplay display = {};
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Atomic<int> displayCount;
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XWindowSystem() noexcept;
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~XWindowSystem() noexcept;
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void initialiseXDisplay() noexcept;
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void destroyXDisplay() noexcept;
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};
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//==============================================================================
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/** Creates and holds a reference to the X display.
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@tags{GUI}
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*/
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struct ScopedXDisplay
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{
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ScopedXDisplay();
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~ScopedXDisplay();
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const XDisplay display;
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};
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//==============================================================================
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/** A handy class that uses XLockDisplay and XUnlockDisplay to lock the X server
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using RAII (Only available in Linux!).
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@tags{GUI}
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*/
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class ScopedXLock
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{
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public:
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/** Creating a ScopedXLock object locks the X display.
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This uses XLockDisplay() to grab the display that JUCE is using.
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*/
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ScopedXLock (XDisplay);
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/** Deleting a ScopedXLock object unlocks the X display.
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This calls XUnlockDisplay() to release the lock.
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*/
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~ScopedXLock();
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private:
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// defined in juce_linux_X11.h
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XDisplay display;
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};
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//==============================================================================
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struct Atoms
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{
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Atoms (XDisplay);
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enum ProtocolItems
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{
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TAKE_FOCUS = 0,
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DELETE_WINDOW = 1,
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PING = 2
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};
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AtomType protocols, protocolList[3], changeState, state, userTime,
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activeWin, pid, windowType, windowState,
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XdndAware, XdndEnter, XdndLeave, XdndPosition, XdndStatus,
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XdndDrop, XdndFinished, XdndSelection, XdndTypeList, XdndActionList,
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XdndActionDescription, XdndActionCopy, XdndActionPrivate,
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XembedMsgType, XembedInfo,
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allowedActions[5],
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allowedMimeTypes[4];
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static const unsigned long DndVersion;
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static AtomType getIfExists (XDisplay, const char* name);
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static AtomType getCreating (XDisplay, const char* name);
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static String getName (XDisplay, AtomType);
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static bool isMimeTypeFile (XDisplay, AtomType);
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};
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//==============================================================================
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struct GetXProperty
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{
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GetXProperty (XDisplay, WindowType, AtomType,
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long offset, long length, bool shouldDelete,
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AtomType requestedType);
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~GetXProperty();
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bool success;
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unsigned char* data = nullptr;
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unsigned long numItems, bytesLeft;
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AtomType actualType;
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int actualFormat;
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};
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} // namespace juce
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