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/*--------------------------------*-C-*---------------------------------* |
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* File: rxvttoolkit.C |
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*----------------------------------------------------------------------* |
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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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|
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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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|
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#include <unistd.h> |
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#include <fcntl.h> |
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|
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#include <sys/utsname.h> |
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|
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#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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refcounted::refcounted (const char *id) |
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{ |
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this->id = strdup (id); |
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} |
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|
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refcounted::~refcounted () |
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{ |
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free (id); |
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} |
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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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++(*i)->referenced; |
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(*i)->ref_next (); |
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return *i; |
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} |
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} |
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|
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T *obj = new T (id); |
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|
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if (obj && obj->ref_init ()) |
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{ |
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obj->referenced = 1; |
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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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|
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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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|
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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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|
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template<class T> |
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void refcache<T>::clear () |
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{ |
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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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///////////////////////////////////////////////////////////////////////////// |
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|
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#ifdef USE_XIM |
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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 |
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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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|
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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)); |
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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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#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); |
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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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|
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return database; |
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} |
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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/"); |
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strcat (val, id); |
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display = XOpenDisplay (val); |
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free (val); |
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} |
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else |
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#endif |
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display = 0; |
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|
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if (!display) |
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display = XOpenDisplay (id); |
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|
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if (!display) |
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return false; |
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|
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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; |
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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 |
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|
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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. |
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*/ |
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if (depth != 24) |
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{ |
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XVisualInfo vinfo; |
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|
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if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo)) |
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{ |
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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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} |
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} |
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#endif |
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|
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int fd = XConnectionNumber (display); |
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|
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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 |
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is_local = 0; |
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sockaddr_un sa; |
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socklen_t sl = sizeof (sa); |
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|
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if (!getsockname (fd, (sockaddr *)&sa, &sl)) |
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is_local = sa.sun_family == AF_LOCAL; |
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#endif |
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|
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x_ev.start (fd, EVENT_READ); |
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fcntl (fd, F_SETFD, FD_CLOEXEC); |
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|
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XSelectInput (display, root, PropertyChangeMask); |
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#ifdef USE_XIM |
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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 () |
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{ |
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// TODO: somehow check wether the database files/resources changed |
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// before re-loading/parsing |
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XrmDestroyDatabase (XrmGetDatabase (display)); |
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XrmSetDatabase (display, get_resources ()); |
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} |
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|
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rxvt_display::~rxvt_display () |
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{ |
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if (!display) |
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return; |
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|
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#ifdef POINTER_BLANK |
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XFreeCursor (display, blank_cursor); |
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#endif |
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x_ev.stop (); |
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#ifdef USE_XIM |
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xims.clear (); |
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#endif |
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XCloseDisplay (display); |
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} |
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|
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#ifdef USE_XIM |
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void rxvt_display::im_change_cb () |
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{ |
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for (im_watcher **i = imw.begin (); i != imw.end (); ++i) |
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(*i)->call (); |
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} |
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|
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void rxvt_display::im_change_check () |
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{ |
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// try to only call im_change_cb when a new input method |
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// registers, as xlib crashes due to a race otherwise. |
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Atom actual_type, *atoms; |
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int actual_format; |
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unsigned long nitems, bytes_after; |
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|
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if (XGetWindowProperty (display, root, xa_xim_servers, 0L, 1000000L, |
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False, XA_ATOM, &actual_type, &actual_format, |
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&nitems, &bytes_after, (unsigned char **)&atoms) |
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!= Success ) |
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return; |
359 |
|
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if (actual_type == XA_ATOM && actual_format == 32) |
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for (int i = 0; i < nitems; i++) |
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if (XGetSelectionOwner (display, atoms[i])) |
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{ |
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im_change_cb (); |
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break; |
366 |
} |
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|
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XFree (atoms); |
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} |
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#endif |
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|
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void rxvt_display::x_cb (io_watcher &w, short revents) |
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{ |
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do |
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{ |
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XEvent xev; |
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XNextEvent (display, &xev); |
378 |
|
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#ifdef USE_XIM |
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if (!XFilterEvent (&xev, None)) |
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{ |
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if (xev.type == PropertyNotify |
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&& xev.xany.window == root |
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&& xev.xproperty.atom == xa_xim_servers) |
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im_change_check (); |
386 |
#endif |
387 |
for (int i = xw.size (); i--; ) |
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{ |
389 |
if (!xw[i]) |
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xw.erase_unordered (i); |
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else if (xw[i]->window == xev.xany.window) |
392 |
xw[i]->call (xev); |
393 |
} |
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#ifdef USE_XIM |
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} |
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#endif |
397 |
} |
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while (XEventsQueued (display, QueuedAlready)); |
399 |
|
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XFlush (display); |
401 |
} |
402 |
|
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void rxvt_display::flush () |
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{ |
405 |
if (XEventsQueued (display, QueuedAlready)) |
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x_cb (x_ev, EVENT_READ); |
407 |
|
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XFlush (display); |
409 |
} |
410 |
|
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void rxvt_display::reg (xevent_watcher *w) |
412 |
{ |
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xw.push_back (w); |
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w->active = xw.size (); |
415 |
} |
416 |
|
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void rxvt_display::unreg (xevent_watcher *w) |
418 |
{ |
419 |
if (w->active) |
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xw[w->active - 1] = 0; |
421 |
} |
422 |
|
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void rxvt_display::set_selection_owner (rxvt_term *owner) |
424 |
{ |
425 |
if (selection_owner && selection_owner != owner) |
426 |
selection_owner->selection_clear (); |
427 |
|
428 |
selection_owner = owner; |
429 |
} |
430 |
|
431 |
#ifdef USE_XIM |
432 |
void rxvt_display::reg (im_watcher *w) |
433 |
{ |
434 |
imw.push_back (w); |
435 |
} |
436 |
|
437 |
void rxvt_display::unreg (im_watcher *w) |
438 |
{ |
439 |
imw.erase (find (imw.begin (), imw.end (), w)); |
440 |
} |
441 |
|
442 |
rxvt_xim *rxvt_display::get_xim (const char *locale, const char *modifiers) |
443 |
{ |
444 |
char *id; |
445 |
int l, m; |
446 |
|
447 |
l = strlen (locale); |
448 |
m = strlen (modifiers); |
449 |
|
450 |
if (!(id = (char *)malloc (l + m + 2))) |
451 |
return 0; |
452 |
|
453 |
memcpy (id, locale, l); id[l] = '\n'; |
454 |
memcpy (id + l + 1, modifiers, m); id[l + m + 1] = 0; |
455 |
|
456 |
rxvt_xim *xim = xims.get (id); |
457 |
|
458 |
free (id); |
459 |
|
460 |
return xim; |
461 |
} |
462 |
|
463 |
void rxvt_display::put_xim (rxvt_xim *xim) |
464 |
{ |
465 |
#if XLIB_IS_RACEFREE |
466 |
xims.put (xim); |
467 |
#endif |
468 |
} |
469 |
#endif |
470 |
|
471 |
Atom rxvt_display::atom (const char *name) |
472 |
{ |
473 |
return XInternAtom (display, name, False); |
474 |
} |
475 |
|
476 |
///////////////////////////////////////////////////////////////////////////// |
477 |
|
478 |
template class refcache<rxvt_display>; |
479 |
refcache<rxvt_display> displays; |
480 |
|
481 |
///////////////////////////////////////////////////////////////////////////// |
482 |
|
483 |
bool |
484 |
rxvt_color::set (rxvt_display *display, Pixel p) |
485 |
{ |
486 |
#if XFT |
487 |
XColor xc; |
488 |
|
489 |
xc.pixel = p; |
490 |
if (!XQueryColor (display->display, display->cmap, &xc)) |
491 |
return false; |
492 |
|
493 |
XRenderColor d; |
494 |
|
495 |
d.red = xc.red; |
496 |
d.green = xc.green; |
497 |
d.blue = xc.blue; |
498 |
d.alpha = 0xffff; |
499 |
|
500 |
return |
501 |
XftColorAllocValue (display->display, |
502 |
display->visual, |
503 |
display->cmap, |
504 |
&d, &c); |
505 |
#else |
506 |
this->p = p; |
507 |
#endif |
508 |
|
509 |
return true; |
510 |
} |
511 |
|
512 |
bool |
513 |
rxvt_color::set (rxvt_display *display, const char *name) |
514 |
{ |
515 |
#if XFT |
516 |
return XftColorAllocName (display->display, display->visual, display->cmap, |
517 |
name, &c); |
518 |
#else |
519 |
XColor xc; |
520 |
|
521 |
if (XParseColor (display->display, display->cmap, name, &xc)) |
522 |
return set (display, xc.red, xc.green, xc.blue); |
523 |
|
524 |
return false; |
525 |
#endif |
526 |
} |
527 |
|
528 |
bool |
529 |
rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) |
530 |
{ |
531 |
XColor xc; |
532 |
|
533 |
xc.red = cr; |
534 |
xc.green = cg; |
535 |
xc.blue = cb; |
536 |
xc.flags = DoRed | DoGreen | DoBlue; |
537 |
|
538 |
if (XAllocColor (display->display, display->cmap, &xc)) |
539 |
return set (display, xc.pixel); |
540 |
|
541 |
return false; |
542 |
} |
543 |
|
544 |
void |
545 |
rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) |
546 |
{ |
547 |
#if XFT |
548 |
cr = c.color.red; |
549 |
cg = c.color.green; |
550 |
cb = c.color.blue; |
551 |
#else |
552 |
XColor c; |
553 |
|
554 |
c.pixel = p; |
555 |
XQueryColor (display->display, display->cmap, &c); |
556 |
|
557 |
cr = c.red; |
558 |
cg = c.green; |
559 |
cb = c.blue; |
560 |
#endif |
561 |
} |
562 |
|
563 |
void |
564 |
rxvt_color::free (rxvt_display *display) |
565 |
{ |
566 |
#if XFT |
567 |
XftColorFree (display->display, display->visual, display->cmap, &c); |
568 |
#else |
569 |
XFreeColors (display->display, display->cmap, &p, 1, AllPlanes); |
570 |
#endif |
571 |
} |
572 |
|
573 |
rxvt_color |
574 |
rxvt_color::fade (rxvt_display *display, int percent) |
575 |
{ |
576 |
percent = 100 - percent; |
577 |
|
578 |
unsigned short cr, cg, cb; |
579 |
rxvt_color faded; |
580 |
|
581 |
get (display, cr, cg, cb); |
582 |
|
583 |
faded.set ( |
584 |
display, |
585 |
cr * percent / 100, |
586 |
cg * percent / 100, |
587 |
cb * percent / 100 |
588 |
); |
589 |
|
590 |
return faded; |
591 |
} |
592 |
|
593 |
#define LERP(a,b,p) (a * p + b * (100 - p)) / 100 |
594 |
|
595 |
rxvt_color |
596 |
rxvt_color::fade (rxvt_display *display, int percent, rxvt_color &fadeto) |
597 |
{ |
598 |
percent = 100 - percent; |
599 |
|
600 |
unsigned short cr, cg, cb; |
601 |
unsigned short fcr, fcg, fcb; |
602 |
rxvt_color faded; |
603 |
|
604 |
get (display, cr, cg, cb); |
605 |
fadeto.get(display, fcr, fcg, fcb); |
606 |
|
607 |
faded.set ( |
608 |
display, |
609 |
LERP (cr, fcr, percent), |
610 |
LERP (cg, fcg, percent), |
611 |
LERP (cb, fcb, percent) |
612 |
); |
613 |
|
614 |
return faded; |
615 |
} |
616 |
|