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1.1 |
/*--------------------------------*-C-*---------------------------------* |
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1.5 |
* File: rxvttoolkit.C |
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1.1 |
*----------------------------------------------------------------------* |
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* |
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* All portions of code are copyright by their respective author/s. |
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* Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*----------------------------------------------------------------------*/ |
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#include "../config.h" |
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#include <rxvt.h> |
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#include <rxvttoolkit.h> |
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#include <unistd.h> |
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#include <fcntl.h> |
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1.23 |
#include <sys/utsname.h> |
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1.1 |
#ifndef NO_SLOW_LINK_SUPPORT |
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# include <sys/socket.h> |
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# include <sys/un.h> |
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#endif |
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|
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root |
1.25 |
const char *const xa_names[] = |
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{ |
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"TEXT", |
40 |
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"COMPOUND_TEXT", |
41 |
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"UTF8_STRING", |
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"MULTIPLE", |
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"TARGETS", |
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"TIMESTAMP", |
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"VT_SELECTION", |
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"INCR", |
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"WM_PROTOCOLS", |
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"WM_DELETE_WINDOW", |
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"CLIPBOARD", |
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#if ENABLE_FRILLS |
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"_MOTIF_WM_HINTS", |
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#endif |
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#if ENABLE_EWMH |
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"_NET_WM_PID", |
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"_NET_WM_NAME", |
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"_NET_WM_ICON_NAME", |
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"_NET_WM_PING", |
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#endif |
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#if USE_XIM |
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"WM_LOCALE_NAME", |
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"XIM_SERVERS", |
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#endif |
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#ifdef TRANSPARENT |
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"_XROOTPMAP_ID", |
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"ESETROOT_PMAP_ID", |
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#endif |
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#if ENABLE_XEMBED |
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"_XEMBED", |
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"_XEMBED_INFO", |
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#endif |
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}; |
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///////////////////////////////////////////////////////////////////////////// |
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1.1 |
refcounted::refcounted (const char *id) |
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{ |
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1.2 |
this->id = strdup (id); |
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1.1 |
} |
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refcounted::~refcounted () |
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{ |
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free (id); |
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} |
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template<class T> |
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T *refcache<T>::get (const char *id) |
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{ |
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for (T **i = this->begin (); i < this->end (); ++i) |
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{ |
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if (!strcmp (id, (*i)->id)) |
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{ |
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1.23 |
++(*i)->referenced; |
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(*i)->ref_next (); |
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1.1 |
return *i; |
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} |
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} |
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T *obj = new T (id); |
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1.23 |
if (obj && obj->ref_init ()) |
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1.1 |
{ |
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1.23 |
obj->referenced = 1; |
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1.1 |
this->push_back (obj); |
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return obj; |
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} |
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else |
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{ |
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delete obj; |
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return 0; |
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} |
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} |
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template<class T> |
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void refcache<T>::put (T *obj) |
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{ |
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if (!obj) |
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return; |
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if (!--obj->referenced) |
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{ |
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this->erase (find (this->begin (), this->end (), obj)); |
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delete obj; |
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} |
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} |
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template<class T> |
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1.12 |
void refcache<T>::clear () |
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1.1 |
{ |
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while (this->size ()) |
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put (*this->begin ()); |
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} |
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///////////////////////////////////////////////////////////////////////////// |
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#ifdef USE_XIM |
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1.24 |
|
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1.1 |
static void |
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#if XIMCB_PROTO_BROKEN |
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im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3) |
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#else |
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im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3) |
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#endif |
143 |
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{ |
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rxvt_xim *xim = (rxvt_xim *)client_data; |
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rxvt_display *display = xim->display; |
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1.5 |
xim->xim = 0; |
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1.1 |
display->xims.erase (find (display->xims.begin (), display->xims.end (), xim)); |
150 |
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display->im_change_cb (); |
151 |
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} |
152 |
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1.23 |
bool |
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rxvt_xim::ref_init () |
155 |
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1.1 |
{ |
156 |
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display = GET_R->display; //HACK: TODO |
157 |
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158 |
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xim = XOpenIM (display->display, NULL, NULL, NULL); |
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160 |
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if (!xim) |
161 |
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return false; |
162 |
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163 |
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XIMCallback ximcallback; |
164 |
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ximcallback.client_data = (XPointer)this; |
165 |
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ximcallback.callback = im_destroy_cb; |
166 |
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167 |
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XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL); |
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169 |
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return true; |
170 |
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} |
171 |
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172 |
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rxvt_xim::~rxvt_xim () |
173 |
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{ |
174 |
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if (xim) |
175 |
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XCloseIM (xim); |
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} |
177 |
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1.24 |
|
178 |
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1.1 |
#endif |
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///////////////////////////////////////////////////////////////////////////// |
181 |
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182 |
root |
1.26 |
void |
183 |
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rxvt_screen::set (rxvt_display *disp) |
184 |
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{ |
185 |
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display = disp; |
186 |
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1.27 |
xdisp = disp->display; |
187 |
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1.26 |
|
188 |
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Screen *screen = ScreenOfDisplay (xdisp, disp->screen); |
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1.27 |
depth = DefaultDepthOfScreen (screen); |
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visual = DefaultVisualOfScreen (screen); |
192 |
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cmap = DefaultColormapOfScreen (screen); |
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1.26 |
} |
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195 |
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void |
196 |
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rxvt_screen::set (rxvt_display *disp, int depth) |
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{ |
198 |
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set (disp); |
199 |
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200 |
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XVisualInfo vinfo; |
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202 |
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if (XMatchVisualInfo (xdisp, display->screen, depth, TrueColor, &vinfo)) |
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{ |
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this->depth = depth; |
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this->visual = vinfo.visual; |
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this->cmap = XCreateColormap (xdisp, disp->root, visual, AllocNone); |
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} |
208 |
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} |
209 |
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210 |
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void |
211 |
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rxvt_screen::clear () |
212 |
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{ |
213 |
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if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (xdisp, display->screen))) |
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XFreeColormap (xdisp, cmap); |
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} |
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///////////////////////////////////////////////////////////////////////////// |
218 |
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219 |
root |
1.1 |
rxvt_display::rxvt_display (const char *id) |
220 |
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: refcounted (id) |
221 |
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, x_ev (this, &rxvt_display::x_cb) |
222 |
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, selection_owner (0) |
223 |
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{ |
224 |
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} |
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226 |
root |
1.23 |
XrmDatabase |
227 |
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rxvt_display::get_resources () |
228 |
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{ |
229 |
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char *homedir = (char *)getenv ("HOME"); |
230 |
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char fname[1024]; |
231 |
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232 |
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/* |
233 |
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* get resources using the X library function |
234 |
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*/ |
235 |
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char *displayResource, *xe; |
236 |
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XrmDatabase database, rdb1; |
237 |
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238 |
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database = NULL; |
239 |
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240 |
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// for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20 |
241 |
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242 |
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// 6. System wide per application default file. |
243 |
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244 |
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/* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */ |
245 |
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if ((xe = (char *)getenv ("XAPPLRESDIR"))) |
246 |
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{ |
247 |
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snprintf (fname, sizeof (fname), "%s/%s", xe, RESCLASS); |
248 |
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249 |
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if ((rdb1 = XrmGetFileDatabase (fname))) |
250 |
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XrmMergeDatabases (rdb1, &database); |
251 |
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} |
252 |
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253 |
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// 5. User's per application default file. |
254 |
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// none |
255 |
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256 |
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// 4. User's defaults file. |
257 |
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/* Get any Xserver defaults */ |
258 |
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displayResource = XResourceManagerString (display); |
259 |
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260 |
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if (displayResource != NULL) |
261 |
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{ |
262 |
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if ((rdb1 = XrmGetStringDatabase (displayResource))) |
263 |
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XrmMergeDatabases (rdb1, &database); |
264 |
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} |
265 |
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else if (homedir) |
266 |
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{ |
267 |
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snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir); |
268 |
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269 |
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if ((rdb1 = XrmGetFileDatabase (fname))) |
270 |
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XrmMergeDatabases (rdb1, &database); |
271 |
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} |
272 |
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273 |
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/* Get screen specific resources */ |
274 |
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displayResource = XScreenResourceString (ScreenOfDisplay (display, screen)); |
275 |
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276 |
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if (displayResource != NULL) |
277 |
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{ |
278 |
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if ((rdb1 = XrmGetStringDatabase (displayResource))) |
279 |
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/* Merge with screen-independent resources */ |
280 |
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XrmMergeDatabases (rdb1, &database); |
281 |
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282 |
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XFree (displayResource); |
283 |
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} |
284 |
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285 |
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// 3. User's per host defaults file |
286 |
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/* Add in XENVIRONMENT file */ |
287 |
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if ((xe = (char *)getenv ("XENVIRONMENT")) |
288 |
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&& (rdb1 = XrmGetFileDatabase (xe))) |
289 |
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XrmMergeDatabases (rdb1, &database); |
290 |
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else if (homedir) |
291 |
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{ |
292 |
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struct utsname un; |
293 |
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|
294 |
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if (!uname (&un)) |
295 |
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{ |
296 |
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snprintf (fname, sizeof (fname), "%s/.Xdefaults-%s", homedir, un.nodename); |
297 |
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298 |
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if ((rdb1 = XrmGetFileDatabase (fname))) |
299 |
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XrmMergeDatabases (rdb1, &database); |
300 |
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} |
301 |
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} |
302 |
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303 |
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return database; |
304 |
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} |
305 |
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306 |
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bool rxvt_display::ref_init () |
307 |
root |
1.1 |
{ |
308 |
root |
1.14 |
#ifdef LOCAL_X_IS_UNIX |
309 |
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if (id[0] == ':') |
310 |
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{ |
311 |
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val = rxvt_malloc (5 + strlen (id) + 1); |
312 |
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strcpy (val, "unix/"); |
313 |
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strcat (val, id); |
314 |
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display = XOpenDisplay (val); |
315 |
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free (val); |
316 |
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} |
317 |
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else |
318 |
root |
1.15 |
#endif |
319 |
root |
1.14 |
display = 0; |
320 |
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|
321 |
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if (!display) |
322 |
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display = XOpenDisplay (id); |
323 |
root |
1.1 |
|
324 |
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if (!display) |
325 |
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return false; |
326 |
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327 |
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screen = DefaultScreen (display); |
328 |
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root = DefaultRootWindow (display); |
329 |
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|
330 |
root |
1.25 |
assert (sizeof (xa_names) / sizeof (char *) == NUM_XA); |
331 |
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XInternAtoms (display, (char **)xa_names, NUM_XA, False, xa); |
332 |
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|
333 |
root |
1.23 |
XrmSetDatabase (display, get_resources ()); |
334 |
root |
1.1 |
|
335 |
root |
1.12 |
#ifdef POINTER_BLANK |
336 |
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XColor blackcolour; |
337 |
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blackcolour.red = 0; |
338 |
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blackcolour.green = 0; |
339 |
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blackcolour.blue = 0; |
340 |
|
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Font f = XLoadFont (display, "fixed"); |
341 |
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blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', |
342 |
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&blackcolour, &blackcolour); |
343 |
|
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XUnloadFont (display, f); |
344 |
|
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#endif |
345 |
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|
346 |
root |
1.23 |
int fd = XConnectionNumber (display); |
347 |
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|
348 |
|
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#ifndef NO_SLOW_LINK_SUPPORT |
349 |
|
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// try to detect wether we have a local connection. |
350 |
|
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// assume unix domains socket == local, everything else not |
351 |
|
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// TODO: might want to check for inet/127.0.0.1 |
352 |
|
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is_local = 0; |
353 |
|
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sockaddr_un sa; |
354 |
|
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socklen_t sl = sizeof (sa); |
355 |
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|
356 |
|
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if (!getsockname (fd, (sockaddr *)&sa, &sl)) |
357 |
|
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is_local = sa.sun_family == AF_LOCAL; |
358 |
|
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#endif |
359 |
|
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|
360 |
root |
1.1 |
x_ev.start (fd, EVENT_READ); |
361 |
|
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fcntl (fd, F_SETFD, FD_CLOEXEC); |
362 |
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|
363 |
|
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XSelectInput (display, root, PropertyChangeMask); |
364 |
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|
365 |
|
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flush (); |
366 |
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|
367 |
|
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return true; |
368 |
|
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} |
369 |
|
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|
370 |
root |
1.23 |
void |
371 |
|
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rxvt_display::ref_next () |
372 |
|
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{ |
373 |
|
|
// TODO: somehow check wether the database files/resources changed |
374 |
|
|
// before re-loading/parsing |
375 |
|
|
XrmDestroyDatabase (XrmGetDatabase (display)); |
376 |
|
|
XrmSetDatabase (display, get_resources ()); |
377 |
|
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} |
378 |
|
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|
379 |
root |
1.1 |
rxvt_display::~rxvt_display () |
380 |
|
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{ |
381 |
root |
1.22 |
if (!display) |
382 |
|
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return; |
383 |
|
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|
384 |
root |
1.21 |
#ifdef POINTER_BLANK |
385 |
|
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XFreeCursor (display, blank_cursor); |
386 |
|
|
#endif |
387 |
root |
1.1 |
x_ev.stop (); |
388 |
root |
1.12 |
#ifdef USE_XIM |
389 |
|
|
xims.clear (); |
390 |
|
|
#endif |
391 |
root |
1.22 |
XCloseDisplay (display); |
392 |
root |
1.1 |
} |
393 |
|
|
|
394 |
|
|
#ifdef USE_XIM |
395 |
|
|
void rxvt_display::im_change_cb () |
396 |
|
|
{ |
397 |
|
|
for (im_watcher **i = imw.begin (); i != imw.end (); ++i) |
398 |
|
|
(*i)->call (); |
399 |
|
|
} |
400 |
root |
1.5 |
|
401 |
|
|
void rxvt_display::im_change_check () |
402 |
|
|
{ |
403 |
root |
1.13 |
// try to only call im_change_cb when a new input method |
404 |
root |
1.5 |
// registers, as xlib crashes due to a race otherwise. |
405 |
|
|
Atom actual_type, *atoms; |
406 |
|
|
int actual_format; |
407 |
|
|
unsigned long nitems, bytes_after; |
408 |
|
|
|
409 |
root |
1.25 |
if (XGetWindowProperty (display, root, xa[XA_XIM_SERVERS], 0L, 1000000L, |
410 |
root |
1.5 |
False, XA_ATOM, &actual_type, &actual_format, |
411 |
|
|
&nitems, &bytes_after, (unsigned char **)&atoms) |
412 |
|
|
!= Success ) |
413 |
|
|
return; |
414 |
|
|
|
415 |
|
|
if (actual_type == XA_ATOM && actual_format == 32) |
416 |
|
|
for (int i = 0; i < nitems; i++) |
417 |
|
|
if (XGetSelectionOwner (display, atoms[i])) |
418 |
|
|
{ |
419 |
|
|
im_change_cb (); |
420 |
|
|
break; |
421 |
|
|
} |
422 |
|
|
|
423 |
|
|
XFree (atoms); |
424 |
|
|
} |
425 |
root |
1.1 |
#endif |
426 |
|
|
|
427 |
|
|
void rxvt_display::x_cb (io_watcher &w, short revents) |
428 |
|
|
{ |
429 |
|
|
do |
430 |
|
|
{ |
431 |
|
|
XEvent xev; |
432 |
|
|
XNextEvent (display, &xev); |
433 |
|
|
|
434 |
root |
1.5 |
#ifdef USE_XIM |
435 |
|
|
if (!XFilterEvent (&xev, None)) |
436 |
|
|
{ |
437 |
|
|
if (xev.type == PropertyNotify |
438 |
|
|
&& xev.xany.window == root |
439 |
root |
1.25 |
&& xev.xproperty.atom == xa[XA_XIM_SERVERS]) |
440 |
root |
1.5 |
im_change_check (); |
441 |
|
|
#endif |
442 |
|
|
for (int i = xw.size (); i--; ) |
443 |
|
|
{ |
444 |
|
|
if (!xw[i]) |
445 |
|
|
xw.erase_unordered (i); |
446 |
|
|
else if (xw[i]->window == xev.xany.window) |
447 |
|
|
xw[i]->call (xev); |
448 |
|
|
} |
449 |
root |
1.1 |
#ifdef USE_XIM |
450 |
root |
1.5 |
} |
451 |
root |
1.1 |
#endif |
452 |
|
|
} |
453 |
root |
1.6 |
while (XEventsQueued (display, QueuedAlready)); |
454 |
root |
1.1 |
|
455 |
root |
1.10 |
XFlush (display); |
456 |
root |
1.1 |
} |
457 |
|
|
|
458 |
|
|
void rxvt_display::flush () |
459 |
|
|
{ |
460 |
root |
1.10 |
if (XEventsQueued (display, QueuedAlready)) |
461 |
|
|
x_cb (x_ev, EVENT_READ); |
462 |
|
|
|
463 |
root |
1.8 |
XFlush (display); |
464 |
root |
1.1 |
} |
465 |
|
|
|
466 |
|
|
void rxvt_display::reg (xevent_watcher *w) |
467 |
|
|
{ |
468 |
|
|
xw.push_back (w); |
469 |
|
|
w->active = xw.size (); |
470 |
|
|
} |
471 |
|
|
|
472 |
|
|
void rxvt_display::unreg (xevent_watcher *w) |
473 |
|
|
{ |
474 |
|
|
if (w->active) |
475 |
|
|
xw[w->active - 1] = 0; |
476 |
|
|
} |
477 |
|
|
|
478 |
|
|
void rxvt_display::set_selection_owner (rxvt_term *owner) |
479 |
|
|
{ |
480 |
|
|
if (selection_owner && selection_owner != owner) |
481 |
|
|
selection_owner->selection_clear (); |
482 |
|
|
|
483 |
|
|
selection_owner = owner; |
484 |
|
|
} |
485 |
|
|
|
486 |
|
|
#ifdef USE_XIM |
487 |
|
|
void rxvt_display::reg (im_watcher *w) |
488 |
|
|
{ |
489 |
|
|
imw.push_back (w); |
490 |
|
|
} |
491 |
|
|
|
492 |
|
|
void rxvt_display::unreg (im_watcher *w) |
493 |
|
|
{ |
494 |
|
|
imw.erase (find (imw.begin (), imw.end (), w)); |
495 |
|
|
} |
496 |
|
|
|
497 |
|
|
rxvt_xim *rxvt_display::get_xim (const char *locale, const char *modifiers) |
498 |
|
|
{ |
499 |
|
|
char *id; |
500 |
|
|
int l, m; |
501 |
|
|
|
502 |
|
|
l = strlen (locale); |
503 |
|
|
m = strlen (modifiers); |
504 |
|
|
|
505 |
|
|
if (!(id = (char *)malloc (l + m + 2))) |
506 |
|
|
return 0; |
507 |
|
|
|
508 |
|
|
memcpy (id, locale, l); id[l] = '\n'; |
509 |
|
|
memcpy (id + l + 1, modifiers, m); id[l + m + 1] = 0; |
510 |
|
|
|
511 |
|
|
rxvt_xim *xim = xims.get (id); |
512 |
|
|
|
513 |
|
|
free (id); |
514 |
|
|
|
515 |
|
|
return xim; |
516 |
|
|
} |
517 |
|
|
|
518 |
|
|
void rxvt_display::put_xim (rxvt_xim *xim) |
519 |
|
|
{ |
520 |
root |
1.10 |
#if XLIB_IS_RACEFREE |
521 |
root |
1.1 |
xims.put (xim); |
522 |
root |
1.10 |
#endif |
523 |
root |
1.1 |
} |
524 |
|
|
#endif |
525 |
|
|
|
526 |
|
|
Atom rxvt_display::atom (const char *name) |
527 |
|
|
{ |
528 |
|
|
return XInternAtom (display, name, False); |
529 |
|
|
} |
530 |
|
|
|
531 |
|
|
///////////////////////////////////////////////////////////////////////////// |
532 |
|
|
|
533 |
|
|
template class refcache<rxvt_display>; |
534 |
|
|
refcache<rxvt_display> displays; |
535 |
|
|
|
536 |
|
|
///////////////////////////////////////////////////////////////////////////// |
537 |
|
|
|
538 |
|
|
bool |
539 |
root |
1.26 |
rxvt_color::set (rxvt_screen *screen, Pixel p) |
540 |
root |
1.1 |
{ |
541 |
|
|
#if XFT |
542 |
|
|
XColor xc; |
543 |
|
|
|
544 |
|
|
xc.pixel = p; |
545 |
root |
1.26 |
if (!XQueryColor (screen->xdisp, screen->cmap, &xc)) |
546 |
root |
1.1 |
return false; |
547 |
|
|
|
548 |
|
|
XRenderColor d; |
549 |
|
|
|
550 |
|
|
d.red = xc.red; |
551 |
|
|
d.green = xc.green; |
552 |
|
|
d.blue = xc.blue; |
553 |
|
|
d.alpha = 0xffff; |
554 |
|
|
|
555 |
|
|
return |
556 |
root |
1.26 |
XftColorAllocValue (screen->xdisp, |
557 |
|
|
screen->visual, |
558 |
|
|
screen->cmap, |
559 |
root |
1.1 |
&d, &c); |
560 |
|
|
#else |
561 |
|
|
this->p = p; |
562 |
|
|
#endif |
563 |
|
|
|
564 |
|
|
return true; |
565 |
|
|
} |
566 |
|
|
|
567 |
|
|
bool |
568 |
root |
1.26 |
rxvt_color::set (rxvt_screen *screen, const char *name) |
569 |
root |
1.1 |
{ |
570 |
root |
1.7 |
#if XFT |
571 |
root |
1.26 |
return XftColorAllocName (screen->xdisp, screen->visual, screen->cmap, name, &c); |
572 |
root |
1.7 |
#else |
573 |
root |
1.1 |
XColor xc; |
574 |
|
|
|
575 |
root |
1.26 |
if (XParseColor (screen->xdisp, screen->cmap, name, &xc)) |
576 |
|
|
return set (screen, xc.red, xc.green, xc.blue); |
577 |
root |
1.1 |
|
578 |
|
|
return false; |
579 |
root |
1.7 |
#endif |
580 |
root |
1.1 |
} |
581 |
|
|
|
582 |
|
|
bool |
583 |
root |
1.26 |
rxvt_color::set (rxvt_screen *screen, unsigned short cr, unsigned short cg, unsigned short cb) |
584 |
root |
1.1 |
{ |
585 |
|
|
XColor xc; |
586 |
|
|
|
587 |
|
|
xc.red = cr; |
588 |
|
|
xc.green = cg; |
589 |
|
|
xc.blue = cb; |
590 |
|
|
xc.flags = DoRed | DoGreen | DoBlue; |
591 |
|
|
|
592 |
root |
1.26 |
if (XAllocColor (screen->xdisp, screen->cmap, &xc)) |
593 |
|
|
return set (screen, xc.pixel); |
594 |
root |
1.1 |
|
595 |
|
|
return false; |
596 |
|
|
} |
597 |
|
|
|
598 |
|
|
void |
599 |
root |
1.26 |
rxvt_color::get (rxvt_screen *screen, unsigned short &cr, unsigned short &cg, unsigned short &cb) |
600 |
root |
1.1 |
{ |
601 |
|
|
#if XFT |
602 |
|
|
cr = c.color.red; |
603 |
|
|
cg = c.color.green; |
604 |
|
|
cb = c.color.blue; |
605 |
|
|
#else |
606 |
|
|
XColor c; |
607 |
|
|
|
608 |
|
|
c.pixel = p; |
609 |
root |
1.26 |
XQueryColor (screen->xdisp, screen->cmap, &c); |
610 |
root |
1.1 |
|
611 |
|
|
cr = c.red; |
612 |
|
|
cg = c.green; |
613 |
|
|
cb = c.blue; |
614 |
|
|
#endif |
615 |
|
|
} |
616 |
|
|
|
617 |
|
|
void |
618 |
root |
1.26 |
rxvt_color::free (rxvt_screen *screen) |
619 |
root |
1.1 |
{ |
620 |
|
|
#if XFT |
621 |
root |
1.26 |
XftColorFree (screen->xdisp, screen->visual, screen->cmap, &c); |
622 |
root |
1.1 |
#else |
623 |
root |
1.26 |
XFreeColors (screen->xdisp, screen->cmap, &p, 1, AllPlanes); |
624 |
root |
1.1 |
#endif |
625 |
|
|
} |
626 |
|
|
|
627 |
|
|
rxvt_color |
628 |
root |
1.26 |
rxvt_color::fade (rxvt_screen *screen, int percent) |
629 |
root |
1.1 |
{ |
630 |
root |
1.18 |
percent = 100 - percent; |
631 |
|
|
|
632 |
root |
1.1 |
unsigned short cr, cg, cb; |
633 |
|
|
rxvt_color faded; |
634 |
|
|
|
635 |
root |
1.26 |
get (screen, cr, cg, cb); |
636 |
root |
1.18 |
|
637 |
|
|
faded.set ( |
638 |
root |
1.26 |
screen, |
639 |
root |
1.18 |
cr * percent / 100, |
640 |
|
|
cg * percent / 100, |
641 |
|
|
cb * percent / 100 |
642 |
|
|
); |
643 |
|
|
|
644 |
|
|
return faded; |
645 |
|
|
} |
646 |
|
|
|
647 |
root |
1.19 |
#define LERP(a,b,p) (a * p + b * (100 - p)) / 100 |
648 |
root |
1.18 |
|
649 |
|
|
rxvt_color |
650 |
root |
1.26 |
rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &fadeto) |
651 |
root |
1.18 |
{ |
652 |
|
|
percent = 100 - percent; |
653 |
|
|
|
654 |
|
|
unsigned short cr, cg, cb; |
655 |
|
|
unsigned short fcr, fcg, fcb; |
656 |
|
|
rxvt_color faded; |
657 |
|
|
|
658 |
root |
1.26 |
get (screen, cr, cg, cb); |
659 |
|
|
fadeto.get (screen, fcr, fcg, fcb); |
660 |
root |
1.18 |
|
661 |
|
|
faded.set ( |
662 |
root |
1.26 |
screen, |
663 |
root |
1.18 |
LERP (cr, fcr, percent), |
664 |
|
|
LERP (cg, fcg, percent), |
665 |
|
|
LERP (cb, fcb, percent) |
666 |
|
|
); |
667 |
root |
1.1 |
|
668 |
|
|
return faded; |
669 |
|
|
} |
670 |
|
|
|