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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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#if XFT |
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# include <X11/extensions/Xrender.h> |
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#endif |
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|
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const char *const xa_names[] = |
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{ |
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"TEXT", |
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"COMPOUND_TEXT", |
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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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///////////////////////////////////////////////////////////////////////////// |
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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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|
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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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|
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#endif |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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void |
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rxvt_screen::set (rxvt_display *disp) |
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{ |
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display = disp; |
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xdisp = disp->display; |
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|
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Screen *screen = ScreenOfDisplay (xdisp, disp->screen); |
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|
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depth = DefaultDepthOfScreen (screen); |
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visual = DefaultVisualOfScreen (screen); |
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cmap = DefaultColormapOfScreen (screen); |
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} |
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|
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void |
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rxvt_screen::set (rxvt_display *disp, int bitdepth) |
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{ |
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set (disp); |
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|
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#if XFT |
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XVisualInfo vinfo; |
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|
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if (XMatchVisualInfo (xdisp, display->screen, bitdepth, TrueColor, &vinfo)) |
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{ |
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depth = bitdepth; |
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visual = vinfo.visual; |
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cmap = XCreateColormap (xdisp, disp->root, visual, AllocNone); |
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} |
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#endif |
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} |
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|
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void |
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rxvt_screen::clear () |
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{ |
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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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|
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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) |
267 |
{ |
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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 */ |
293 |
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) |
297 |
{ |
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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); |
303 |
|
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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); |
322 |
} |
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else |
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#endif |
325 |
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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|
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assert (sizeof (xa_names) / sizeof (char *) == NUM_XA); |
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XInternAtoms (display, (char **)xa_names, NUM_XA, False, xa); |
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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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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 |
357 |
// TODO: might want to check for inet/127.0.0.1 |
358 |
is_local = 0; |
359 |
sockaddr_un sa; |
360 |
socklen_t sl = sizeof (sa); |
361 |
|
362 |
if (!getsockname (fd, (sockaddr *)&sa, &sl)) |
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is_local = sa.sun_family == AF_LOCAL; |
364 |
#endif |
365 |
|
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x_ev.start (fd, EVENT_READ); |
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fcntl (fd, F_SETFD, FD_CLOEXEC); |
368 |
|
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XSelectInput (display, root, PropertyChangeMask); |
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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 () |
378 |
{ |
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// TODO: somehow check wether the database files/resources changed |
380 |
// before re-loading/parsing |
381 |
XrmDestroyDatabase (XrmGetDatabase (display)); |
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XrmSetDatabase (display, get_resources ()); |
383 |
} |
384 |
|
385 |
rxvt_display::~rxvt_display () |
386 |
{ |
387 |
if (!display) |
388 |
return; |
389 |
|
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#ifdef POINTER_BLANK |
391 |
XFreeCursor (display, blank_cursor); |
392 |
#endif |
393 |
x_ev.stop (); |
394 |
#ifdef USE_XIM |
395 |
xims.clear (); |
396 |
#endif |
397 |
XCloseDisplay (display); |
398 |
} |
399 |
|
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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 (); |
405 |
} |
406 |
|
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void rxvt_display::im_change_check () |
408 |
{ |
409 |
// try to only call im_change_cb when a new input method |
410 |
// registers, as xlib crashes due to a race otherwise. |
411 |
Atom actual_type, *atoms; |
412 |
int actual_format; |
413 |
unsigned long nitems, bytes_after; |
414 |
|
415 |
if (XGetWindowProperty (display, root, xa[XA_XIM_SERVERS], 0L, 1000000L, |
416 |
False, XA_ATOM, &actual_type, &actual_format, |
417 |
&nitems, &bytes_after, (unsigned char **)&atoms) |
418 |
!= Success ) |
419 |
return; |
420 |
|
421 |
if (actual_type == XA_ATOM && actual_format == 32) |
422 |
for (int i = 0; i < nitems; i++) |
423 |
if (XGetSelectionOwner (display, atoms[i])) |
424 |
{ |
425 |
im_change_cb (); |
426 |
break; |
427 |
} |
428 |
|
429 |
XFree (atoms); |
430 |
} |
431 |
#endif |
432 |
|
433 |
void rxvt_display::x_cb (io_watcher &w, short revents) |
434 |
{ |
435 |
do |
436 |
{ |
437 |
XEvent xev; |
438 |
XNextEvent (display, &xev); |
439 |
|
440 |
#ifdef USE_XIM |
441 |
if (!XFilterEvent (&xev, None)) |
442 |
{ |
443 |
if (xev.type == PropertyNotify |
444 |
&& xev.xany.window == root |
445 |
&& xev.xproperty.atom == xa[XA_XIM_SERVERS]) |
446 |
im_change_check (); |
447 |
#endif |
448 |
for (int i = xw.size (); i--; ) |
449 |
{ |
450 |
if (!xw[i]) |
451 |
xw.erase_unordered (i); |
452 |
else if (xw[i]->window == xev.xany.window) |
453 |
xw[i]->call (xev); |
454 |
} |
455 |
#ifdef USE_XIM |
456 |
} |
457 |
#endif |
458 |
} |
459 |
while (XEventsQueued (display, QueuedAlready)); |
460 |
|
461 |
XFlush (display); |
462 |
} |
463 |
|
464 |
void rxvt_display::flush () |
465 |
{ |
466 |
if (XEventsQueued (display, QueuedAlready)) |
467 |
x_cb (x_ev, EVENT_READ); |
468 |
|
469 |
XFlush (display); |
470 |
} |
471 |
|
472 |
void rxvt_display::reg (xevent_watcher *w) |
473 |
{ |
474 |
xw.push_back (w); |
475 |
w->active = xw.size (); |
476 |
} |
477 |
|
478 |
void rxvt_display::unreg (xevent_watcher *w) |
479 |
{ |
480 |
if (w->active) |
481 |
xw[w->active - 1] = 0; |
482 |
} |
483 |
|
484 |
void rxvt_display::set_selection_owner (rxvt_term *owner) |
485 |
{ |
486 |
if (selection_owner && selection_owner != owner) |
487 |
selection_owner->selection_clear (); |
488 |
|
489 |
selection_owner = owner; |
490 |
} |
491 |
|
492 |
#ifdef USE_XIM |
493 |
void rxvt_display::reg (im_watcher *w) |
494 |
{ |
495 |
imw.push_back (w); |
496 |
} |
497 |
|
498 |
void rxvt_display::unreg (im_watcher *w) |
499 |
{ |
500 |
imw.erase (find (imw.begin (), imw.end (), w)); |
501 |
} |
502 |
|
503 |
rxvt_xim *rxvt_display::get_xim (const char *locale, const char *modifiers) |
504 |
{ |
505 |
char *id; |
506 |
int l, m; |
507 |
|
508 |
l = strlen (locale); |
509 |
m = strlen (modifiers); |
510 |
|
511 |
if (!(id = (char *)malloc (l + m + 2))) |
512 |
return 0; |
513 |
|
514 |
memcpy (id, locale, l); id[l] = '\n'; |
515 |
memcpy (id + l + 1, modifiers, m); id[l + m + 1] = 0; |
516 |
|
517 |
rxvt_xim *xim = xims.get (id); |
518 |
|
519 |
free (id); |
520 |
|
521 |
return xim; |
522 |
} |
523 |
|
524 |
void rxvt_display::put_xim (rxvt_xim *xim) |
525 |
{ |
526 |
#if XLIB_IS_RACEFREE |
527 |
xims.put (xim); |
528 |
#endif |
529 |
} |
530 |
#endif |
531 |
|
532 |
Atom rxvt_display::atom (const char *name) |
533 |
{ |
534 |
return XInternAtom (display, name, False); |
535 |
} |
536 |
|
537 |
///////////////////////////////////////////////////////////////////////////// |
538 |
|
539 |
template class refcache<rxvt_display>; |
540 |
refcache<rxvt_display> displays; |
541 |
|
542 |
///////////////////////////////////////////////////////////////////////////// |
543 |
|
544 |
bool |
545 |
rxvt_color::set (rxvt_screen *screen, const char *name) |
546 |
{ |
547 |
#if XFT |
548 |
int l = strlen (name); |
549 |
rxvt_rgba r; |
550 |
char eos; |
551 |
int mult; |
552 |
|
553 |
if ( l == 1+4*1 && 4 == sscanf (name, "#%1hx%1hx%1hx%1hx%c", &r.a, &r.r, &r.g, &r.b, &eos)) |
554 |
mult = rxvt_rgba::MAX_CC / 0x000f; |
555 |
else if (l == 1+4*2 && 4 == sscanf (name, "#%2hx%2hx%2hx%2hx%c", &r.a, &r.r, &r.g, &r.b, &eos)) |
556 |
mult = rxvt_rgba::MAX_CC / 0x00ff; |
557 |
else if (l == 1+4*4 && 4 == sscanf (name, "#%4hx%4hx%4hx%4hx%c", &r.a, &r.r, &r.g, &r.b, &eos)) |
558 |
mult = rxvt_rgba::MAX_CC / 0xffff; |
559 |
else if (l == 4+5*4 && 4 == sscanf (name, "rgba:%hx/%hx/%hx/%hx%c", &r.r, &r.g, &r.b, &r.a, &eos)) |
560 |
mult = rxvt_rgba::MAX_CC / 0xffff; |
561 |
else |
562 |
return XftColorAllocName (screen->xdisp, screen->visual, screen->cmap, name, &c); |
563 |
|
564 |
r.r *= mult; r.g *= mult; r.b *= mult; r.a *= mult; |
565 |
return set (screen, r); |
566 |
#else |
567 |
XColor xc; |
568 |
|
569 |
if (XParseColor (screen->xdisp, screen->cmap, name, &xc)) |
570 |
return set (screen, rxvt_rgba (xc.red, xc.green, xc.blue)); |
571 |
|
572 |
return false; |
573 |
#endif |
574 |
} |
575 |
|
576 |
bool |
577 |
rxvt_color::set (rxvt_screen *screen, rxvt_rgba rgba) |
578 |
{ |
579 |
#if XFT |
580 |
XRenderPictFormat *format; |
581 |
|
582 |
// FUCKING Xft gets it wrong, of course, so work around it |
583 |
// transparency users should eat shit and die, and then |
584 |
// XRenderQueryPictIndexValues themselves plenty. |
585 |
if (screen->visual->c_class == TrueColor |
586 |
&& (format = XRenderFindVisualFormat (screen->xdisp, screen->visual))) |
587 |
{ |
588 |
// the fun lies in doing everything manually... |
589 |
c.color.red = rgba.r; |
590 |
c.color.green = rgba.g; |
591 |
c.color.blue = rgba.b; |
592 |
c.color.alpha = rgba.a; |
593 |
|
594 |
c.pixel = (rgba.r >> (16 - popcount (format->direct.redMask )) << format->direct.red) |
595 |
| (rgba.g >> (16 - popcount (format->direct.greenMask)) << format->direct.green) |
596 |
| (rgba.b >> (16 - popcount (format->direct.blueMask )) << format->direct.blue) |
597 |
| (rgba.a >> (16 - popcount (format->direct.alphaMask)) << format->direct.alpha); |
598 |
|
599 |
return true; |
600 |
} |
601 |
else |
602 |
{ |
603 |
XRenderColor d; |
604 |
|
605 |
d.red = rgba.r; |
606 |
d.green = rgba.g; |
607 |
d.blue = rgba.b; |
608 |
d.alpha = rgba.a; |
609 |
|
610 |
return XftColorAllocValue (screen->xdisp, screen->visual, screen->cmap, &d, &c); |
611 |
} |
612 |
|
613 |
return false; |
614 |
#else |
615 |
XColor xc; |
616 |
|
617 |
xc.red = rgba.r; |
618 |
xc.green = rgba.g; |
619 |
xc.blue = rgba.b; |
620 |
xc.flags = DoRed | DoGreen | DoBlue; |
621 |
|
622 |
if (XAllocColor (screen->xdisp, screen->cmap, &xc)) |
623 |
{ |
624 |
p = xc.pixel; |
625 |
return true; |
626 |
} |
627 |
|
628 |
return false; |
629 |
#endif |
630 |
} |
631 |
|
632 |
void |
633 |
rxvt_color::get (rxvt_screen *screen, rxvt_rgba &rgba) |
634 |
{ |
635 |
#if XFT |
636 |
rgba.r = c.color.red; |
637 |
rgba.g = c.color.green; |
638 |
rgba.b = c.color.blue; |
639 |
rgba.a = c.color.alpha; |
640 |
#else |
641 |
XColor c; |
642 |
|
643 |
c.pixel = p; |
644 |
XQueryColor (screen->xdisp, screen->cmap, &c); |
645 |
|
646 |
rgba.r = c.red; |
647 |
rgba.g = c.green; |
648 |
rgba.b = c.blue; |
649 |
rgba.a = rxvt_rgba::MAX_CC; |
650 |
#endif |
651 |
} |
652 |
|
653 |
void |
654 |
rxvt_color::free (rxvt_screen *screen) |
655 |
{ |
656 |
#if XFT |
657 |
XftColorFree (screen->xdisp, screen->visual, screen->cmap, &c); |
658 |
#else |
659 |
XFreeColors (screen->xdisp, screen->cmap, &p, 1, AllPlanes); |
660 |
#endif |
661 |
} |
662 |
|
663 |
rxvt_color |
664 |
rxvt_color::fade (rxvt_screen *screen, int percent) |
665 |
{ |
666 |
rxvt_color faded; |
667 |
|
668 |
rxvt_rgba c; |
669 |
get (screen, c); |
670 |
|
671 |
c.r = lerp (0, c.r, percent); |
672 |
c.g = lerp (0, c.g, percent); |
673 |
c.b = lerp (0, c.b, percent); |
674 |
|
675 |
faded.set (screen, c); |
676 |
|
677 |
return faded; |
678 |
} |
679 |
|
680 |
rxvt_color |
681 |
rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &fadeto) |
682 |
{ |
683 |
rxvt_rgba c, fc; |
684 |
rxvt_color faded; |
685 |
|
686 |
get (screen, c); |
687 |
fadeto.get (screen, fc); |
688 |
|
689 |
faded.set ( |
690 |
screen, |
691 |
rxvt_rgba ( |
692 |
lerp (fc.r, c.r, percent), |
693 |
lerp (fc.g, c.g, percent), |
694 |
lerp (fc.b, c.b, percent), |
695 |
lerp (fc.a, c.a, percent) |
696 |
) |
697 |
); |
698 |
|
699 |
return faded; |
700 |
} |
701 |
|