Ben Anderson
163 lines
3.3 KiB
C++
163 lines
3.3 KiB
C++
#include "X11Helper.h"
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#include <list>
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#include <X11/Xlib.h> // Display, Window
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#include "RageDisplay.h" // RageDisplay
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vector<Callback_t> pCBacks; // Callbacks for the rendering
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// thread
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list<long> pMasks; // Currently open masks
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Display *pDpy; // Running X connection
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Window *pWin = NULL; // Current window
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unsigned short int pCt = 0; // Number of subsystems using
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// the X connection
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bool X11Helper::Go()
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{
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if(pCt == 0)
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{
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pDpy = XOpenDisplay(0);
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if(pDpy == NULL) { return false; }
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}
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pCt++;
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return true;
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}
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Display *X11Helper::Dpy()
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{
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return pDpy;
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}
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static bool pApplyMasks()
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{
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int i;
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long finalMask;
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i = 0;
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while(i < pMasks.size() )
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{
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finalMask |= pMasks[i];
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i++;
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}
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if(XSelectInput(pDpy, pWin, finalMask) == 0) { return false; }
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return true;
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}
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bool X11Helper::OpenMask(long mask)
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{
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pMasks.push_back(mask);
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if(pWin != NULL)
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{
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return pApplyMasks();
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}
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else
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{
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return true;
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}
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}
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bool X11Helper::CloseMask(long mask)
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{
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int i;
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i = 0;
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while(true)
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{
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if(pMasks[i] == mask)
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{
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pMasks.erase(i);
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break;
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}
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i++;
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if(i > pMasks.size()-1) { return false; }
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}
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if(pWin != NULL)
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{
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return pApplyMasks();
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}
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else
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{
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return true;
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}
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}
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bool X11Helper::MakeWindow(int screenNum, int depth, Visual *visual int width=64, int height=64)
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{
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int i;
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if(pDpy == NULL) { return false; }
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XSetWindowAttributes winAttribs;
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winAttribs.border_pixel = 0;
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// XXX: Error catching/handling?
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winAttribs.colormap = XCreateColorMap(pDpy, RootWindow(pDpy, screenNum),
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visual, AllocNone);
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pWin = XCreateWindow(pDpy, RootWindow(pDpy, screenNum), 0, 0, width,
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height, 0, depth, InputOutput, visual,
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CWBorderPixel | CWColorMap | CWEventMask, &winAttribs);
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i = 0;
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while(i < pCBacks.size() )
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{
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pCBacks[i](pWin);
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i++;
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}
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return pApplyMasks();
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}
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bool X11Helper::Callback(Callback_t cb)
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{
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pCBacks.push_back(cb);
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return true;
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}
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void X11Helper::Stop()
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{
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pCt--;
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if(pCt == 0)
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{
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XCloseDisplay(pDpy);
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pMasks.clear();
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}
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return true;
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}
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/*
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* (c) 2005 Ben Anderson
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, and/or sell copies of the Software, and to permit persons to
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* whom the Software is furnished to do so, provided that the above
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* copyright notice(s) and this permission notice appear in all copies of
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* the Software and that both the above copyright notice(s) and this
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* permission notice appear in supporting documentation.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
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* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
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* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
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* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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