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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>gnome-mag: gmag-events.c Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.7 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li id="current"><a href="files.html"><span>Files</span></a></li> <li><a href="dirs.html"><span>Directories</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>Globals</span></a></li> </ul></div><div class="nav"><a class="el" href="dir_ed2a549a3a7169145b90da06827de1bb.html">magnifier</a></div><h1>gmag-events.c</h1><a href="gmag-events_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span><a name="l00002"></a>00002 <span class="comment"> * GNOME-MAG Magnification service for GNOME</span><a name="l00003"></a>00003 <span class="comment"> *</span><a name="l00004"></a>00004 <span class="comment"> * Copyright 2006 Carlos Eduardo Rodrigues Di骻enes</span><a name="l00005"></a>00005 <span class="comment"> * Copyright 2004 Sun Microsystems Inc. (damage-client.c)</span><a name="l00006"></a>00006 <span class="comment"> * Copyright 2001 Sun Microsystems Inc. (magnifier.c)</span><a name="l00007"></a>00007 <span class="comment"> *</span><a name="l00008"></a>00008 <span class="comment"> * This library is free software; you can redistribute it and/or</span><a name="l00009"></a>00009 <span class="comment"> * modify it under the terms of the GNU Library General Public</span><a name="l00010"></a>00010 <span class="comment"> * License as published by the Free Software Foundation; either</span><a name="l00011"></a>00011 <span class="comment"> * version 2 of the License, or (at your option) any later version.</span><a name="l00012"></a>00012 <span class="comment"> *</span><a name="l00013"></a>00013 <span class="comment"> * This library is distributed in the hope that it will be useful,</span><a name="l00014"></a>00014 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span><a name="l00015"></a>00015 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span><a name="l00016"></a>00016 <span class="comment"> * Library General Public License for more details.</span><a name="l00017"></a>00017 <span class="comment"> *</span><a name="l00018"></a>00018 <span class="comment"> * You should have received a copy of the GNU Library General Public</span><a name="l00019"></a>00019 <span class="comment"> * License along with this library; if not, write to the</span><a name="l00020"></a>00020 <span class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330,</span><a name="l00021"></a>00021 <span class="comment"> * Boston, MA 02111-1307, USA.</span><a name="l00022"></a>00022 <span class="comment"> */</span><a name="l00023"></a>00023 <a name="l00024"></a>00024 <span class="preprocessor">#include "config.h"</span><a name="l00025"></a>00025 <span class="preprocessor">#include "<a class="code" href="magnifier_8h.html">magnifier.h</a>"</span><a name="l00026"></a>00026 <span class="preprocessor">#include "<a class="code" href="magnifier-private_8h.html">magnifier-private.h</a>"</span><a name="l00027"></a>00027 <span class="preprocessor">#include "<a class="code" href="gmag-events_8h.html">gmag-events.h</a>"</span><a name="l00028"></a>00028 <a name="l00029"></a>00029 <span class="preprocessor">#include <stdlib.h></span><a name="l00030"></a>00030 <a name="l00031"></a>00031 <span class="preprocessor">#include <X11/Xlib.h></span><a name="l00032"></a>00032 <span class="preprocessor">#ifdef HAVE_XFIXES</span><a name="l00033"></a>00033 <span class="preprocessor"></span><span class="preprocessor">#include <X11/extensions/Xfixes.h></span><a name="l00034"></a>00034 <span class="preprocessor">#ifdef HAVE_DAMAGE</span><a name="l00035"></a>00035 <span class="preprocessor"></span><span class="preprocessor">#include <X11/extensions/Xdamage.h></span><a name="l00036"></a>00036 <span class="preprocessor">#ifdef HAVE_COMPOSITE</span><a name="l00037"></a>00037 <span class="preprocessor"></span><span class="preprocessor">#include <X11/extensions/Xrender.h></span><a name="l00038"></a>00038 <span class="preprocessor">#include <X11/extensions/Xcomposite.h></span><a name="l00039"></a>00039 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_COMPOSITE */</span><a name="l00040"></a>00040 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_DAMAGE */</span><a name="l00041"></a>00041 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_XFIXES */</span><a name="l00042"></a>00042 <a name="l00043"></a>00043 <span class="preprocessor">#include <glib.h></span><a name="l00044"></a>00044 <a name="l00045"></a>00045 <span class="preprocessor">#include <gdk/gdkx.h></span><a name="l00046"></a>00046 <span class="preprocessor">#include <gtk/gtk.h></span><a name="l00047"></a>00047 <a name="l00048"></a><a class="code" href="gmag-events_8c.html#df636aeb547b62e88302730e4f2bf3ad">00048</a> <span class="keyword">static</span> Display *<a class="code" href="gmag-events_8c.html#df636aeb547b62e88302730e4f2bf3ad">dpy_conn</a> = NULL;<a name="l00049"></a><a class="code" href="gmag-events_8c.html#20dd2b625baa014c168aa0b36de23e1a">00049</a> <span class="keyword">static</span> guint <a class="code" href="gmag-events_8c.html#20dd2b625baa014c168aa0b36de23e1a">dpy_gsource</a> = 0;<a name="l00050"></a><a class="code" href="gmag-events_8c.html#6eb6e09a314f776549556f683de16888">00050</a> <span class="keyword">static</span> Window <a class="code" href="gmag-events_8c.html#6eb6e09a314f776549556f683de16888">root_window</a>, <a class="code" href="gmag-events_8c.html#d64ddbbd54eee237f99ba13f9d5c8655">mag_window</a>;<a name="l00051"></a>00051 <a name="l00052"></a><a class="code" href="gmag-events_8c.html#b7789bbae376de7b8ea7e803f7913441">00052</a> <span class="keyword">static</span> gboolean <a class="code" href="gmag-events_8c.html#b7789bbae376de7b8ea7e803f7913441">use_damage</a>, <a class="code" href="gmag-events_8c.html#3bdb0607b8da4a1adb8fde6580acb511">use_composite</a>;<a name="l00053"></a>00053 <a name="l00054"></a><a class="code" href="magnifier_8c.html#e43ff431d2a42c41986233cf33f96a85">00054</a> gint <a class="code" href="gmag-events_8c.html#e43ff431d2a42c41986233cf33f96a85">fixes_event_base</a> = 0, <a class="code" href="gmag-events_8c.html#deb12e8b46ab70058c96318bb356100a">fixes_error_base</a>;<a name="l00055"></a>00055 <span class="preprocessor">#ifdef HAVE_XFIXES</span><a name="l00056"></a>00056 <span class="preprocessor"></span><span class="preprocessor">#ifdef HAVE_DAMAGE</span><a name="l00057"></a>00057 <span class="preprocessor"></span><span class="keyword">static</span> gint damage_event_base, damage_error_base;<a name="l00058"></a>00058 <span class="keyword">static</span> Damage root_window_damage;<a name="l00059"></a>00059 <span class="keyword">static</span> XserverRegion gmag_events_tmp_region;<a name="l00060"></a>00060 <span class="preprocessor">#ifdef HAVE_COMPOSITE</span><a name="l00061"></a>00061 <span class="preprocessor"></span><span class="keyword">static</span> GQueue *mag_windows_list;<a name="l00062"></a>00062 <span class="keyword">static</span> Damage off_screen_damage;<a name="l00063"></a>00063 <span class="keyword">static</span> Picture off_screen_picture;<a name="l00064"></a>00064 <span class="keyword">static</span> XserverRegion off_screen_region;<a name="l00065"></a>00065 <span class="keyword">static</span> XserverRegion tmp_region, new_region, old_region, exp_region;<a name="l00066"></a>00066 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_COMPOSITE */</span><a name="l00067"></a>00067 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_DAMAGE */</span><a name="l00068"></a>00068 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_XFIXES */</span><a name="l00069"></a>00069 <a name="l00070"></a><a class="code" href="gmag-events_8c.html#83b61a2392469523ade173c0d8801dd2">00070</a> <span class="preprocessor">#define EVENTS_DEBUG</span><a name="l00071"></a>00071 <span class="preprocessor"></span><span class="preprocessor">#undef EVENTS_DEBUG</span><a name="l00072"></a>00072 <span class="preprocessor"></span><a name="l00073"></a>00073 <span class="preprocessor">#ifdef EVENTS_DEBUG</span><a name="l00074"></a>00074 <span class="preprocessor"></span><a name="l00075"></a>00075 <span class="preprocessor">#ifdef HAVE_DAMAGE</span><a name="l00076"></a>00076 <span class="preprocessor"></span><span class="preprocessor">#define DAMAGE_DEBUG</span><a name="l00077"></a>00077 <span class="preprocessor"></span><span class="preprocessor">#undef DAMAGE_DEBUG</span><a name="l00078"></a>00078 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* HAVE_DAMAGE */</span><a name="l00079"></a>00079 <a name="l00080"></a>00080 <span class="preprocessor">#ifdef HAVE_COMPOSITE</span><a name="l00081"></a>00081 <span class="preprocessor"></span><span class="preprocessor">#define COMPOSITE_DEBUG</span><a name="l00082"></a>00082 <span class="preprocessor"></span><span class="preprocessor">#undef COMPOSITE_DEBUG</span><a name="l00083"></a>00083 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* HAVE_COMPOSITE */</span><a name="l00084"></a>00084 <a name="l00085"></a>00085 <span class="preprocessor">#ifdef HAVE_XFIXES</span><a name="l00086"></a>00086 <span class="preprocessor"></span><span class="preprocessor">#define CURSOR_DEBUG</span><a name="l00087"></a>00087 <span class="preprocessor"></span><span class="preprocessor">#undef CURSOR_DEBUG</span><a name="l00088"></a>00088 <span class="preprocessor"></span><span class="preprocessor">#define XFIXES_DEBUG</span><a name="l00089"></a>00089 <span class="preprocessor"></span><span class="preprocessor">#undef XFIXES_DEBUG</span><a name="l00090"></a>00090 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* HAVE_XFIXES */</span><a name="l00091"></a>00091 <a name="l00092"></a>00092 <span class="preprocessor">#endif </span><span class="comment">/* EVENTS_DEBUG */</span><a name="l00093"></a>00093 <a name="l00094"></a>00094 <span class="preprocessor">#ifdef HAVE_XFIXES</span><a name="l00095"></a>00095 <span class="preprocessor"></span><span class="preprocessor">#ifdef HAVE_COMPOSITE</span><a name="l00096"></a>00096 <span class="preprocessor"></span><a name="l00097"></a>00097 <span class="comment">/*</span><a name="l00098"></a>00098 <span class="comment"> * GCompareFunc used in g_queue_find_custom to find windows in</span><a name="l00099"></a>00099 <span class="comment"> * mag_windows_list.</span><a name="l00100"></a>00100 <span class="comment"> */</span><a name="l00101"></a>00101 <span class="keyword">static</span> gint<a name="l00102"></a>00102 gmag_events_g_compare_func (<a class="code" href="struct__GmagWin.html">GmagWinPtr</a> pgmag_win, Window xwin)<a name="l00103"></a>00103 {<a name="l00104"></a>00104 <span class="keywordflow">if</span> (pgmag_win-><a class="code" href="struct__GmagWin.html#b0296be2f6d865e0ea50ab0b97a06ad5">xwin</a> == xwin)<a name="l00105"></a>00105 <span class="keywordflow">return</span> 0;<a name="l00106"></a>00106 <a name="l00107"></a>00107 <span class="keywordflow">return</span> 1;<a name="l00108"></a>00108 }<a name="l00109"></a>00109 <a name="l00110"></a>00110 <span class="comment">/*</span><a name="l00111"></a>00111 <span class="comment"> * Calculates the clip for all windows in mag_windows_list.</span><a name="l00112"></a>00112 <span class="comment"> */</span><a name="l00113"></a>00113 <span class="keyword">static</span> <span class="keywordtype">void</span><a name="l00114"></a>00114 gmag_events_calculate_windows_clip ()<a name="l00115"></a>00115 {<a name="l00116"></a>00116 GList *elem = NULL;<a name="l00117"></a>00117 XserverRegion clipSum;<a name="l00118"></a>00118 <a name="l00119"></a>00119 clipSum = XFixesCreateRegion (<a class="code" href="gmag-events_8c.html#df636aeb547b62e88302730e4f2bf3ad">dpy_conn</a>, 0, 0);<a name="l00120"></a>00120 elem = g_queue_peek_tail_link (mag_windows_list);<a name="l00121"></a>00121 <span class="keywordflow">if</span> (!elem) {<a name="l00122"></a>00122 XFixesDestroyRegion (<a class="code" href="gmag-events_8c.html#df636aeb547b62e88302730e4f2bf3ad">dpy_conn</a>, clipSum);<a name="l00123"></a>00123 <span class="keywordflow">return</span>;<a name="l00124"></a>00124 }<a name="l00125"></a>00125 <span class="keywordflow">do</span> {<a name="l00126"></a>00126 <a class="code" href="struct__GmagWin.html">GmagWinPtr</a> pgmag_win = (<a class="code" href="struct__GmagWin.html">GmagWinPtr</a>) elem->data;<a name="l00127"></a>00127 if (pgmag_win->pic)⌨️ 快捷键说明
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