134 lines
4.2 KiB
C++
134 lines
4.2 KiB
C++
#include "global.h"
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#include "X11Helper.h"
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#include "RageLog.h"
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#include "ProductInfo.h"
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#include "Preference.h"
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#include "PrefsManager.h" // XXX: only used for m_bShowMouseCursor -aj
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Display *X11Helper::Dpy = NULL;
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Window X11Helper::Win = None;
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static int ErrorCallback( Display*, XErrorEvent* );
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static int FatalCallback( Display* );
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static Preference<RString> g_XWMName( "XWMName", PRODUCT_ID );
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bool X11Helper::OpenXConnection()
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{
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DEBUG_ASSERT( Dpy == NULL && Win == None );
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Dpy = XOpenDisplay(0);
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if( Dpy == NULL )
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return false;
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XSetIOErrorHandler( FatalCallback );
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XSetErrorHandler( ErrorCallback );
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return true;
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}
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void X11Helper::CloseXConnection()
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{
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// The window should have been shut down
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DEBUG_ASSERT( Dpy != NULL );
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DEBUG_ASSERT( Win == None );
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XCloseDisplay( Dpy );
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Dpy = NULL;
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}
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bool X11Helper::MakeWindow( Window &win, int screenNum, int depth, Visual *visual, int width, int height, bool overrideRedirect )
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{
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if( !Dpy )
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return false;
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XSetWindowAttributes winAttribs;
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winAttribs.border_pixel = 0;
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winAttribs.event_mask = 0L;
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if( win )
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{
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// Preserve the event mask.
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XWindowAttributes attribs;
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XGetWindowAttributes( Dpy, win, &attribs );
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winAttribs.event_mask = attribs.your_event_mask;
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XDestroyWindow( Dpy, win );
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}
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// XXX: Error catching/handling?
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winAttribs.colormap = XCreateColormap( Dpy, RootWindow(Dpy, screenNum), visual, AllocNone );
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unsigned long mask = CWBorderPixel | CWColormap | CWEventMask;
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if( overrideRedirect )
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{
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winAttribs.override_redirect = True;
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mask |= CWOverrideRedirect;
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}
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win = XCreateWindow( Dpy, RootWindow(Dpy, screenNum), 0, 0, width, height, 0,
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depth, InputOutput, visual, mask, &winAttribs );
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if( win == None )
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return false;
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XClassHint *hint = XAllocClassHint();
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if ( hint == NULL ) {
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LOG->Warn("Could not set class hint for X11 Window");
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} else {
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hint->res_name = (char*)g_XWMName.Get().c_str();
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hint->res_class = (char*)PRODUCT_FAMILY;
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XSetClassHint(Dpy, win, hint);
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XFree(hint);
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}
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// Hide the mouse cursor in certain situations.
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if( !PREFSMAN->m_bShowMouseCursor )
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{
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const char pBlank[] = { 0,0,0,0,0,0,0,0 };
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Pixmap BlankBitmap = XCreateBitmapFromData( Dpy, win, pBlank, 8, 8 );
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XColor black = { 0, 0, 0, 0, 0, 0 };
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Cursor pBlankPointer = XCreatePixmapCursor( Dpy, BlankBitmap, BlankBitmap, &black, &black, 0, 0 );
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XFreePixmap( Dpy, BlankBitmap );
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XDefineCursor( Dpy, win, pBlankPointer );
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XFreeCursor( Dpy, pBlankPointer );
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}
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return true;
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}
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int ErrorCallback( Display *d, XErrorEvent *err )
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{
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char errText[512];
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XGetErrorText( d, err->error_code, errText, 512 );
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LOG->Warn( "X11 Protocol error %s (%d) has occurred, caused by request %d,%d, resource ID %d",
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errText, err->error_code, err->request_code, err->minor_code, (int) err->resourceid );
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return 0; // Xlib ignores our return value
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}
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int FatalCallback( Display *d )
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{
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RageException::Throw( "Fatal I/O error communicating with X server." );
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}
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/*
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* (c) 2005, 2006 Ben Anderson, Steve Checkoway
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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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