workspace/kcontrol/input/kapplymousetheme.cpp

   1 /*
   2  * main.cpp
   3  *
   4  * Copyright (c) 1999 Matthias Hoelzer-Kluepfel <hoelzer@kde.org>
   5  * Copyright (c) 2005 Lubos Lunak <l.lunak@kde.org>
   6  *
   7  * Requires the Qt widget libraries, available at no cost at
   8  * http://www.troll.no/
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License as published by
  12  *  the Free Software Foundation; either version 2 of the License, or
  13  *  (at your option) any later version.
  14  *
  15  *  This program is distributed in the hope that it will be useful,
  16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *  GNU General Public License for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License
  21  *  along with this program; if not, write to the Free Software
  22  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  23  */
  24
  25 #include <config-X11.h>
  26
  27 #include <QX11Info>
  28 #include <stdlib.h>
  29 #include <ctype.h>
  30 #include <X11/Xlib.h>
  31
  32 #ifdef HAVE_XCURSOR
  33 #  include <X11/Xcursor/Xcursor.h>
  34 #endif
  35
  36 static Display* dpy;
  37 Display* QX11Info::display() { return dpy; }
  38 Qt::HANDLE QX11Info::appRootWindow(int) { return DefaultRootWindow( dpy ); }
  39
  40 static bool isEmpty( const char* str )
  41     {
  42     if( str == NULL )
  43         return true;
  44     while( isspace( *str ))
  45         ++str;
  46     return *str == '\0';
  47     }
  48
  49 int main( int argc, char* argv[] )
  50     {
  51     if( argc != 3 )
  52         return 1;
  53     dpy = XOpenDisplay( NULL );
  54     if( dpy == NULL )
  55         return 2;
  56     int ret = 0;
  57 #ifdef HAVE_XCURSOR
  58     const char* theme = argv[ 1 ];
  59     const char* size = argv[ 2 ];
  60
  61     // Note: If you update this code, update kapplymousetheme as well.
  62
  63     // use a default value for theme only if it's not configured at all, not even in X resources
  64     if( isEmpty( theme )
  65         && isEmpty( XGetDefault( QX11Info::display(), "Xcursor", "theme" ))
  66         && isEmpty( XcursorGetTheme( QX11Info::display())))
  67     {
  68         theme = "default";
  69         ret = 10; // means to switch to default
  70     }
  71
  72      // Apply the KDE cursor theme to ourselves
  73     if( !isEmpty( theme ))
  74         XcursorSetTheme(QX11Info::display(), theme );
  75
  76     if (!isEmpty( size ))
  77         XcursorSetDefaultSize(QX11Info::display(), atoi( size ));
  78
  79     // Load the default cursor from the theme and apply it to the root window.
  80     Cursor handle = XcursorLibraryLoadCursor(QX11Info::display(), "left_ptr");
  81     XDefineCursor(QX11Info::display(), QX11Info::appRootWindow(), handle);
  82     XFreeCursor(QX11Info::display(), handle); // Don't leak the cursor
  83
  84 #else
  85     ( void ) QX11Info::display();
  86     ( void ) QX11Info::appRootWindow();
  87     ( void ) argv;
  88 #endif
  89     XCloseDisplay( dpy );
  90     return ret;
  91     }