mirror of
https://github.com/juce-framework/JUCE.git
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136 lines
3.8 KiB
C++
136 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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Permission is granted to use this software under the terms of either:
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a) the GPL v2 (or any later version)
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b) the Affero GPL v3
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Details of these licenses can be found at: www.gnu.org/licenses
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.juce.com for more information.
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==============================================================================
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*/
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#pragma once
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// Hack to forward declare _XDisplay outside the
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// juce namespace
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}
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struct _XDisplay;
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#define ATOM_TYPE unsigned long
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#define WINDOW_TYPE unsigned long
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namespace juce {
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//==============================================================================
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class XWindowSystem
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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_DeclareSingleton (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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class ScopedXDisplay
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{
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public:
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ScopedXDisplay();
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~ScopedXDisplay();
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::_XDisplay* get();
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private:
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::_XDisplay* display;
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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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*/
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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* _display);
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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* display);
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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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ATOM_TYPE 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 ATOM_TYPE getIfExists (::_XDisplay* display, const char* name);
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static ATOM_TYPE getCreating (::_XDisplay* display, const char* name);
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static String getName (::_XDisplay* display, const ATOM_TYPE atom);
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static bool isMimeTypeFile (::_XDisplay* display, const ATOM_TYPE atom);
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};
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//==============================================================================
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struct GetXProperty
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{
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GetXProperty (::_XDisplay* display, WINDOW_TYPE window, ATOM_TYPE atom,
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long offset, long length, bool shouldDelete,
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ATOM_TYPE requestedType);
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~GetXProperty();
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bool success;
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unsigned char* data;
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unsigned long numItems, bytesLeft;
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ATOM_TYPE actualType;
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int actualFormat;
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};
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#undef ATOM_TYPE
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