| 1 |
/*--------------------------------*-C-*---------------------------------* |
| 2 |
* File: rxvttoolkit.C |
| 3 |
*----------------------------------------------------------------------* |
| 4 |
* |
| 5 |
* All portions of code are copyright by their respective author/s. |
| 6 |
* 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 |
| 9 |
* it under the terms of the GNU General Public License as published by |
| 10 |
* the Free Software Foundation; either version 2 of the License, or |
| 11 |
* (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, |
| 14 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 |
* GNU General Public License for more details. |
| 17 |
* |
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* You should have received a copy of the GNU General Public License |
| 19 |
* along with this program; if not, write to the Free Software |
| 20 |
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 21 |
*----------------------------------------------------------------------*/ |
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|
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#include "../config.h" |
| 24 |
#include <rxvt.h> |
| 25 |
#include <rxvttoolkit.h> |
| 26 |
|
| 27 |
#include <unistd.h> |
| 28 |
#include <fcntl.h> |
| 29 |
|
| 30 |
#include <sys/utsname.h> |
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|
| 32 |
#ifndef NO_SLOW_LINK_SUPPORT |
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# include <sys/socket.h> |
| 34 |
# include <sys/un.h> |
| 35 |
#endif |
| 36 |
|
| 37 |
refcounted::refcounted (const char *id) |
| 38 |
{ |
| 39 |
this->id = strdup (id); |
| 40 |
} |
| 41 |
|
| 42 |
refcounted::~refcounted () |
| 43 |
{ |
| 44 |
free (id); |
| 45 |
} |
| 46 |
|
| 47 |
template<class T> |
| 48 |
T *refcache<T>::get (const char *id) |
| 49 |
{ |
| 50 |
for (T **i = this->begin (); i < this->end (); ++i) |
| 51 |
{ |
| 52 |
if (!strcmp (id, (*i)->id)) |
| 53 |
{ |
| 54 |
++(*i)->referenced; |
| 55 |
(*i)->ref_next (); |
| 56 |
return *i; |
| 57 |
} |
| 58 |
} |
| 59 |
|
| 60 |
T *obj = new T (id); |
| 61 |
|
| 62 |
if (obj && obj->ref_init ()) |
| 63 |
{ |
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obj->referenced = 1; |
| 65 |
this->push_back (obj); |
| 66 |
return obj; |
| 67 |
} |
| 68 |
else |
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{ |
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delete obj; |
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return 0; |
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} |
| 73 |
} |
| 74 |
|
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template<class T> |
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void refcache<T>::put (T *obj) |
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{ |
| 78 |
if (!obj) |
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return; |
| 80 |
|
| 81 |
if (!--obj->referenced) |
| 82 |
{ |
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this->erase (find (this->begin (), this->end (), obj)); |
| 84 |
delete obj; |
| 85 |
} |
| 86 |
} |
| 87 |
|
| 88 |
template<class T> |
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void refcache<T>::clear () |
| 90 |
{ |
| 91 |
while (this->size ()) |
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put (*this->begin ()); |
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} |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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#ifdef USE_XIM |
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|
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static void |
| 100 |
#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) |
| 104 |
#endif |
| 105 |
{ |
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rxvt_xim *xim = (rxvt_xim *)client_data; |
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rxvt_display *display = xim->display; |
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|
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xim->xim = 0; |
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|
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display->xims.erase (find (display->xims.begin (), display->xims.end (), xim)); |
| 112 |
display->im_change_cb (); |
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} |
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|
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bool |
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rxvt_xim::ref_init () |
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{ |
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display = GET_R->display; //HACK: TODO |
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|
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xim = XOpenIM (display->display, NULL, NULL, NULL); |
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|
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if (!xim) |
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return false; |
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|
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XIMCallback ximcallback; |
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ximcallback.client_data = (XPointer)this; |
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ximcallback.callback = im_destroy_cb; |
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|
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XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL); |
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|
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return true; |
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} |
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|
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rxvt_xim::~rxvt_xim () |
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{ |
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if (xim) |
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XCloseIM (xim); |
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} |
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|
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#endif |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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rxvt_display::rxvt_display (const char *id) |
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: refcounted (id) |
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, x_ev (this, &rxvt_display::x_cb) |
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, selection_owner (0) |
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{ |
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} |
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|
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XrmDatabase |
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rxvt_display::get_resources () |
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{ |
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char *homedir = (char *)getenv ("HOME"); |
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char fname[1024]; |
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|
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/* |
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* get resources using the X library function |
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*/ |
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char *displayResource, *xe; |
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XrmDatabase database, rdb1; |
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|
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database = NULL; |
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|
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// for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20 |
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|
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// 6. System wide per application default file. |
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|
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/* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */ |
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if ((xe = (char *)getenv ("XAPPLRESDIR"))) |
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{ |
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snprintf (fname, sizeof (fname), "%s/%s", xe, RESCLASS); |
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|
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if ((rdb1 = XrmGetFileDatabase (fname))) |
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XrmMergeDatabases (rdb1, &database); |
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} |
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|
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// 5. User's per application default file. |
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// none |
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|
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// 4. User's defaults file. |
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/* Get any Xserver defaults */ |
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displayResource = XResourceManagerString (display); |
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|
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if (displayResource != NULL) |
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{ |
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if ((rdb1 = XrmGetStringDatabase (displayResource))) |
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XrmMergeDatabases (rdb1, &database); |
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} |
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else if (homedir) |
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{ |
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snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir); |
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|
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if ((rdb1 = XrmGetFileDatabase (fname))) |
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XrmMergeDatabases (rdb1, &database); |
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} |
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|
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/* Get screen specific resources */ |
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displayResource = XScreenResourceString (ScreenOfDisplay (display, screen)); |
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|
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if (displayResource != NULL) |
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{ |
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if ((rdb1 = XrmGetStringDatabase (displayResource))) |
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/* Merge with screen-independent resources */ |
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XrmMergeDatabases (rdb1, &database); |
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|
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XFree (displayResource); |
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} |
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|
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// 3. User's per host defaults file |
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/* Add in XENVIRONMENT file */ |
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if ((xe = (char *)getenv ("XENVIRONMENT")) |
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&& (rdb1 = XrmGetFileDatabase (xe))) |
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XrmMergeDatabases (rdb1, &database); |
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else if (homedir) |
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{ |
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struct utsname un; |
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|
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if (!uname (&un)) |
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{ |
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snprintf (fname, sizeof (fname), "%s/.Xdefaults-%s", homedir, un.nodename); |
| 222 |
|
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if ((rdb1 = XrmGetFileDatabase (fname))) |
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XrmMergeDatabases (rdb1, &database); |
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} |
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} |
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|
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return database; |
| 229 |
} |
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|
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bool rxvt_display::ref_init () |
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{ |
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#ifdef LOCAL_X_IS_UNIX |
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if (id[0] == ':') |
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{ |
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val = rxvt_malloc (5 + strlen (id) + 1); |
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strcpy (val, "unix/"); |
| 238 |
strcat (val, id); |
| 239 |
display = XOpenDisplay (val); |
| 240 |
free (val); |
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} |
| 242 |
else |
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#endif |
| 244 |
display = 0; |
| 245 |
|
| 246 |
if (!display) |
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display = XOpenDisplay (id); |
| 248 |
|
| 249 |
if (!display) |
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return false; |
| 251 |
|
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screen = DefaultScreen (display); |
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root = DefaultRootWindow (display); |
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visual = DefaultVisual (display, screen); |
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cmap = DefaultColormap (display, screen); |
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depth = DefaultDepth (display, screen); |
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|
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XrmSetDatabase (display, get_resources ()); |
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|
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#ifdef POINTER_BLANK |
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XColor blackcolour; |
| 262 |
blackcolour.red = 0; |
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blackcolour.green = 0; |
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blackcolour.blue = 0; |
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Font f = XLoadFont (display, "fixed"); |
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blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', |
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&blackcolour, &blackcolour); |
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XUnloadFont (display, f); |
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#endif |
| 270 |
|
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#ifdef PREFER_24BIT |
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/* |
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* If depth is not 24, look for a 24bit visual. |
| 274 |
*/ |
| 275 |
if (depth != 24) |
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{ |
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XVisualInfo vinfo; |
| 278 |
|
| 279 |
if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo)) |
| 280 |
{ |
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depth = 24; |
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visual = vinfo.visual; |
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cmap = XCreateColormap (display, |
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RootWindow (display, screen), |
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visual, AllocNone); |
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} |
| 287 |
} |
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#endif |
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|
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int fd = XConnectionNumber (display); |
| 291 |
|
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#ifndef NO_SLOW_LINK_SUPPORT |
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// try to detect wether we have a local connection. |
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// assume unix domains socket == local, everything else not |
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// TODO: might want to check for inet/127.0.0.1 |
| 296 |
is_local = 0; |
| 297 |
sockaddr_un sa; |
| 298 |
socklen_t sl = sizeof (sa); |
| 299 |
|
| 300 |
if (!getsockname (fd, (sockaddr *)&sa, &sl)) |
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is_local = sa.sun_family == AF_LOCAL; |
| 302 |
#endif |
| 303 |
|
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x_ev.start (fd, EVENT_READ); |
| 305 |
fcntl (fd, F_SETFD, FD_CLOEXEC); |
| 306 |
|
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XSelectInput (display, root, PropertyChangeMask); |
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#ifdef USE_XIM |
| 309 |
xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0); |
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#endif |
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|
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flush (); |
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|
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return true; |
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} |
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|
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void |
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rxvt_display::ref_next () |
| 319 |
{ |
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// TODO: somehow check wether the database files/resources changed |
| 321 |
// before re-loading/parsing |
| 322 |
XrmDestroyDatabase (XrmGetDatabase (display)); |
| 323 |
XrmSetDatabase (display, get_resources ()); |
| 324 |
} |
| 325 |
|
| 326 |
rxvt_display::~rxvt_display () |
| 327 |
{ |
| 328 |
if (!display) |
| 329 |
return; |
| 330 |
|
| 331 |
#ifdef POINTER_BLANK |
| 332 |
XFreeCursor (display, blank_cursor); |
| 333 |
#endif |
| 334 |
x_ev.stop (); |
| 335 |
#ifdef USE_XIM |
| 336 |
xims.clear (); |
| 337 |
#endif |
| 338 |
XCloseDisplay (display); |
| 339 |
} |
| 340 |
|
| 341 |
#ifdef USE_XIM |
| 342 |
void rxvt_display::im_change_cb () |
| 343 |
{ |
| 344 |
for (im_watcher **i = imw.begin (); i != imw.end (); ++i) |
| 345 |
(*i)->call (); |
| 346 |
} |
| 347 |
|
| 348 |
void rxvt_display::im_change_check () |
| 349 |
{ |
| 350 |
// try to only call im_change_cb when a new input method |
| 351 |
// registers, as xlib crashes due to a race otherwise. |
| 352 |
Atom actual_type, *atoms; |
| 353 |
int actual_format; |
| 354 |
unsigned long nitems, bytes_after; |
| 355 |
|
| 356 |
if (XGetWindowProperty (display, root, xa_xim_servers, 0L, 1000000L, |
| 357 |
False, XA_ATOM, &actual_type, &actual_format, |
| 358 |
&nitems, &bytes_after, (unsigned char **)&atoms) |
| 359 |
!= Success ) |
| 360 |
return; |
| 361 |
|
| 362 |
if (actual_type == XA_ATOM && actual_format == 32) |
| 363 |
for (int i = 0; i < nitems; i++) |
| 364 |
if (XGetSelectionOwner (display, atoms[i])) |
| 365 |
{ |
| 366 |
im_change_cb (); |
| 367 |
break; |
| 368 |
} |
| 369 |
|
| 370 |
XFree (atoms); |
| 371 |
} |
| 372 |
#endif |
| 373 |
|
| 374 |
void rxvt_display::x_cb (io_watcher &w, short revents) |
| 375 |
{ |
| 376 |
do |
| 377 |
{ |
| 378 |
XEvent xev; |
| 379 |
XNextEvent (display, &xev); |
| 380 |
|
| 381 |
#ifdef USE_XIM |
| 382 |
if (!XFilterEvent (&xev, None)) |
| 383 |
{ |
| 384 |
if (xev.type == PropertyNotify |
| 385 |
&& xev.xany.window == root |
| 386 |
&& xev.xproperty.atom == xa_xim_servers) |
| 387 |
im_change_check (); |
| 388 |
#endif |
| 389 |
for (int i = xw.size (); i--; ) |
| 390 |
{ |
| 391 |
if (!xw[i]) |
| 392 |
xw.erase_unordered (i); |
| 393 |
else if (xw[i]->window == xev.xany.window) |
| 394 |
xw[i]->call (xev); |
| 395 |
} |
| 396 |
#ifdef USE_XIM |
| 397 |
} |
| 398 |
#endif |
| 399 |
} |
| 400 |
while (XEventsQueued (display, QueuedAlready)); |
| 401 |
|
| 402 |
XFlush (display); |
| 403 |
} |
| 404 |
|
| 405 |
void rxvt_display::flush () |
| 406 |
{ |
| 407 |
if (XEventsQueued (display, QueuedAlready)) |
| 408 |
x_cb (x_ev, EVENT_READ); |
| 409 |
|
| 410 |
XFlush (display); |
| 411 |
} |
| 412 |
|
| 413 |
void rxvt_display::reg (xevent_watcher *w) |
| 414 |
{ |
| 415 |
xw.push_back (w); |
| 416 |
w->active = xw.size (); |
| 417 |
} |
| 418 |
|
| 419 |
void rxvt_display::unreg (xevent_watcher *w) |
| 420 |
{ |
| 421 |
if (w->active) |
| 422 |
xw[w->active - 1] = 0; |
| 423 |
} |
| 424 |
|
| 425 |
void rxvt_display::set_selection_owner (rxvt_term *owner) |
| 426 |
{ |
| 427 |
if (selection_owner && selection_owner != owner) |
| 428 |
selection_owner->selection_clear (); |
| 429 |
|
| 430 |
selection_owner = owner; |
| 431 |
} |
| 432 |
|
| 433 |
#ifdef USE_XIM |
| 434 |
void rxvt_display::reg (im_watcher *w) |
| 435 |
{ |
| 436 |
imw.push_back (w); |
| 437 |
} |
| 438 |
|
| 439 |
void rxvt_display::unreg (im_watcher *w) |
| 440 |
{ |
| 441 |
imw.erase (find (imw.begin (), imw.end (), w)); |
| 442 |
} |
| 443 |
|
| 444 |
rxvt_xim *rxvt_display::get_xim (const char *locale, const char *modifiers) |
| 445 |
{ |
| 446 |
char *id; |
| 447 |
int l, m; |
| 448 |
|
| 449 |
l = strlen (locale); |
| 450 |
m = strlen (modifiers); |
| 451 |
|
| 452 |
if (!(id = (char *)malloc (l + m + 2))) |
| 453 |
return 0; |
| 454 |
|
| 455 |
memcpy (id, locale, l); id[l] = '\n'; |
| 456 |
memcpy (id + l + 1, modifiers, m); id[l + m + 1] = 0; |
| 457 |
|
| 458 |
rxvt_xim *xim = xims.get (id); |
| 459 |
|
| 460 |
free (id); |
| 461 |
|
| 462 |
return xim; |
| 463 |
} |
| 464 |
|
| 465 |
void rxvt_display::put_xim (rxvt_xim *xim) |
| 466 |
{ |
| 467 |
#if XLIB_IS_RACEFREE |
| 468 |
xims.put (xim); |
| 469 |
#endif |
| 470 |
} |
| 471 |
#endif |
| 472 |
|
| 473 |
Atom rxvt_display::atom (const char *name) |
| 474 |
{ |
| 475 |
return XInternAtom (display, name, False); |
| 476 |
} |
| 477 |
|
| 478 |
///////////////////////////////////////////////////////////////////////////// |
| 479 |
|
| 480 |
template class refcache<rxvt_display>; |
| 481 |
refcache<rxvt_display> displays; |
| 482 |
|
| 483 |
///////////////////////////////////////////////////////////////////////////// |
| 484 |
|
| 485 |
bool |
| 486 |
rxvt_color::set (rxvt_display *display, Pixel p) |
| 487 |
{ |
| 488 |
#if XFT |
| 489 |
XColor xc; |
| 490 |
|
| 491 |
xc.pixel = p; |
| 492 |
if (!XQueryColor (display->display, display->cmap, &xc)) |
| 493 |
return false; |
| 494 |
|
| 495 |
XRenderColor d; |
| 496 |
|
| 497 |
d.red = xc.red; |
| 498 |
d.green = xc.green; |
| 499 |
d.blue = xc.blue; |
| 500 |
d.alpha = 0xffff; |
| 501 |
|
| 502 |
return |
| 503 |
XftColorAllocValue (display->display, |
| 504 |
display->visual, |
| 505 |
display->cmap, |
| 506 |
&d, &c); |
| 507 |
#else |
| 508 |
this->p = p; |
| 509 |
#endif |
| 510 |
|
| 511 |
return true; |
| 512 |
} |
| 513 |
|
| 514 |
bool |
| 515 |
rxvt_color::set (rxvt_display *display, const char *name) |
| 516 |
{ |
| 517 |
#if XFT |
| 518 |
return XftColorAllocName (display->display, display->visual, display->cmap, |
| 519 |
name, &c); |
| 520 |
#else |
| 521 |
XColor xc; |
| 522 |
|
| 523 |
if (XParseColor (display->display, display->cmap, name, &xc)) |
| 524 |
return set (display, xc.red, xc.green, xc.blue); |
| 525 |
|
| 526 |
return false; |
| 527 |
#endif |
| 528 |
} |
| 529 |
|
| 530 |
bool |
| 531 |
rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) |
| 532 |
{ |
| 533 |
XColor xc; |
| 534 |
|
| 535 |
xc.red = cr; |
| 536 |
xc.green = cg; |
| 537 |
xc.blue = cb; |
| 538 |
xc.flags = DoRed | DoGreen | DoBlue; |
| 539 |
|
| 540 |
if (XAllocColor (display->display, display->cmap, &xc)) |
| 541 |
return set (display, xc.pixel); |
| 542 |
|
| 543 |
return false; |
| 544 |
} |
| 545 |
|
| 546 |
void |
| 547 |
rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) |
| 548 |
{ |
| 549 |
#if XFT |
| 550 |
cr = c.color.red; |
| 551 |
cg = c.color.green; |
| 552 |
cb = c.color.blue; |
| 553 |
#else |
| 554 |
XColor c; |
| 555 |
|
| 556 |
c.pixel = p; |
| 557 |
XQueryColor (display->display, display->cmap, &c); |
| 558 |
|
| 559 |
cr = c.red; |
| 560 |
cg = c.green; |
| 561 |
cb = c.blue; |
| 562 |
#endif |
| 563 |
} |
| 564 |
|
| 565 |
void |
| 566 |
rxvt_color::free (rxvt_display *display) |
| 567 |
{ |
| 568 |
#if XFT |
| 569 |
XftColorFree (display->display, display->visual, display->cmap, &c); |
| 570 |
#else |
| 571 |
XFreeColors (display->display, display->cmap, &p, 1, AllPlanes); |
| 572 |
#endif |
| 573 |
} |
| 574 |
|
| 575 |
rxvt_color |
| 576 |
rxvt_color::fade (rxvt_display *display, int percent) |
| 577 |
{ |
| 578 |
percent = 100 - percent; |
| 579 |
|
| 580 |
unsigned short cr, cg, cb; |
| 581 |
rxvt_color faded; |
| 582 |
|
| 583 |
get (display, cr, cg, cb); |
| 584 |
|
| 585 |
faded.set ( |
| 586 |
display, |
| 587 |
cr * percent / 100, |
| 588 |
cg * percent / 100, |
| 589 |
cb * percent / 100 |
| 590 |
); |
| 591 |
|
| 592 |
return faded; |
| 593 |
} |
| 594 |
|
| 595 |
#define LERP(a,b,p) (a * p + b * (100 - p)) / 100 |
| 596 |
|
| 597 |
rxvt_color |
| 598 |
rxvt_color::fade (rxvt_display *display, int percent, rxvt_color &fadeto) |
| 599 |
{ |
| 600 |
percent = 100 - percent; |
| 601 |
|
| 602 |
unsigned short cr, cg, cb; |
| 603 |
unsigned short fcr, fcg, fcb; |
| 604 |
rxvt_color faded; |
| 605 |
|
| 606 |
get (display, cr, cg, cb); |
| 607 |
fadeto.get(display, fcr, fcg, fcb); |
| 608 |
|
| 609 |
faded.set ( |
| 610 |
display, |
| 611 |
LERP (cr, fcr, percent), |
| 612 |
LERP (cg, fcg, percent), |
| 613 |
LERP (cb, fcb, percent) |
| 614 |
); |
| 615 |
|
| 616 |
return faded; |
| 617 |
} |
| 618 |
|
