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/*----------------------------------------------------------------------* |
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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) 2003-2006 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> |
| 25 |
#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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#include <sys/socket.h> |
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#include <sys/un.h> |
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|
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#if XFT |
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# include <X11/extensions/Xrender.h> |
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#endif |
| 37 |
|
| 38 |
const char *const xa_names[] = |
| 39 |
{ |
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"TEXT", |
| 41 |
"COMPOUND_TEXT", |
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"UTF8_STRING", |
| 43 |
"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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"AVERAGE_WIDTH", |
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"WEIGHT_NAME", |
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"SLANT", |
| 54 |
"CHARSET_REGISTRY", |
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"CHARSET_ENCODING", |
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#if ENABLE_FRILLS |
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"_MOTIF_WM_HINTS", |
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#endif |
| 59 |
#if ENABLE_EWMH |
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"_NET_WM_PID", |
| 61 |
"_NET_WM_NAME", |
| 62 |
"_NET_WM_ICON_NAME", |
| 63 |
"_NET_WM_PING", |
| 64 |
#endif |
| 65 |
#if USE_XIM |
| 66 |
"WM_LOCALE_NAME", |
| 67 |
"XIM_SERVERS", |
| 68 |
#endif |
| 69 |
#ifdef TRANSPARENT |
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"_XROOTPMAP_ID", |
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"ESETROOT_PMAP_ID", |
| 72 |
#endif |
| 73 |
#if ENABLE_XEMBED |
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"_XEMBED", |
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"_XEMBED_INFO", |
| 76 |
#endif |
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#if !ENABLE_MINIMAL |
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"SCREEN_RESOURCES", |
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"XDCCC_LINEAR_RGB_CORRECTION", |
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"XDCCC_LINEAR_RGB_MATRICES", |
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"WM_COLORMAP_WINDOWS", |
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"WM_STATE", |
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"cursor", |
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# if USE_XIM |
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"TRANSPORT", |
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"LOCALES", |
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"_XIM_PROTOCOL", |
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"_XIM_XCONNECT", |
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"_XIM_MOREDATA", |
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# endif |
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#endif |
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}; |
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|
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///////////////////////////////////////////////////////////////////////////// |
| 95 |
|
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refcounted::refcounted (const char *id) |
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{ |
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this->id = strdup (id); |
| 99 |
} |
| 100 |
|
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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->dpy, 0, 0, 0); |
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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, 0); |
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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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#if XFT |
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rxvt_drawable::~rxvt_drawable () |
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{ |
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if (xftdrawable) |
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XftDrawDestroy (xftdrawable); |
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} |
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|
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rxvt_drawable::operator XftDraw *() |
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{ |
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if (!xftdrawable) |
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xftdrawable = XftDrawCreate (screen->dpy, drawable, screen->visual, screen->cmap); |
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|
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return xftdrawable; |
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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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#if XFT |
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|
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// not strictly necessary as it is only used with superclass of zero_initialised |
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rxvt_screen::rxvt_screen () |
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: scratch_area (0) |
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{ |
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} |
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|
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rxvt_drawable &rxvt_screen::scratch_drawable (int w, int h) |
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{ |
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// it's actually faster to re-allocate every time. don't ask me |
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// why, but its likely no big deal there are no roundtrips |
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// (I think/hope). |
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if (!scratch_area || w > scratch_w || h > scratch_h || 1/*D*/) |
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{ |
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if (scratch_area) |
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{ |
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XFreePixmap (dpy, scratch_area->drawable); |
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delete scratch_area; |
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} |
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|
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Pixmap pm = XCreatePixmap (dpy, RootWindowOfScreen (ScreenOfDisplay (dpy, display->screen)), |
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scratch_w = w, scratch_h = h, depth); |
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|
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scratch_area = new rxvt_drawable (this, pm); |
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} |
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|
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return *scratch_area; |
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} |
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|
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#endif |
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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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dpy = disp->dpy; |
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|
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Screen *screen = ScreenOfDisplay (dpy, 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::select_visual (int bitdepth) |
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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 (dpy, 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 (dpy, display->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 XFT |
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if (scratch_area) |
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{ |
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XFreePixmap (dpy, scratch_area->drawable); |
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delete scratch_area; |
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} |
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#endif |
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|
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if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (dpy, display->screen))) |
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XFreeColormap (dpy, 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 (bool refresh) |
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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 rdb1, database = 0; |
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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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// as opposed to "standard practise", we always read in ~/.Xdefaults |
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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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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 any Xserver defaults */ |
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if (refresh) |
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{ |
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// fucking xlib keeps a copy of the rm string |
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Atom actual_type; |
| 348 |
int actual_format; |
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unsigned long nitems, nremaining; |
| 350 |
char *val = 0; |
| 351 |
|
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#if XLIB_ILLEGAL_ACCESS |
| 353 |
if (dpy->xdefaults) |
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XFree (dpy->xdefaults); |
| 355 |
#endif |
| 356 |
|
| 357 |
if (XGetWindowProperty (dpy, RootWindow (dpy, 0), XA_RESOURCE_MANAGER, |
| 358 |
0L, 100000000L, False, |
| 359 |
XA_STRING, &actual_type, &actual_format, |
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&nitems, &nremaining, |
| 361 |
(unsigned char **)&val) == Success |
| 362 |
&& actual_type == XA_STRING |
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&& actual_format == 8) |
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displayResource = val; |
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else |
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{ |
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displayResource = 0; |
| 368 |
|
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if (val) |
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XFree(val); |
| 371 |
} |
| 372 |
|
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#if XLIB_ILLEGAL_ACCESS |
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dpy->xdefaults = displayResource; |
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#endif |
| 376 |
} |
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else |
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displayResource = XResourceManagerString (dpy); |
| 379 |
|
| 380 |
if (displayResource) |
| 381 |
{ |
| 382 |
if ((rdb1 = XrmGetStringDatabase (displayResource))) |
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XrmMergeDatabases (rdb1, &database); |
| 384 |
} |
| 385 |
|
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#if !XLIB_ILLEGAL_ACCESS |
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if (refresh && displayResource) |
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XFree (displayResource); |
| 389 |
#endif |
| 390 |
|
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/* Get screen specific resources */ |
| 392 |
displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen)); |
| 393 |
|
| 394 |
if (displayResource) |
| 395 |
{ |
| 396 |
if ((rdb1 = XrmGetStringDatabase (displayResource))) |
| 397 |
/* Merge with screen-independent resources */ |
| 398 |
XrmMergeDatabases (rdb1, &database); |
| 399 |
|
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XFree (displayResource); |
| 401 |
} |
| 402 |
|
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// 3. User's per host defaults file |
| 404 |
/* Add in XENVIRONMENT file */ |
| 405 |
if ((xe = (char *)getenv ("XENVIRONMENT")) |
| 406 |
&& (rdb1 = XrmGetFileDatabase (xe))) |
| 407 |
XrmMergeDatabases (rdb1, &database); |
| 408 |
else if (homedir) |
| 409 |
{ |
| 410 |
struct utsname un; |
| 411 |
|
| 412 |
if (!uname (&un)) |
| 413 |
{ |
| 414 |
snprintf (fname, sizeof (fname), "%s/.Xdefaults-%s", homedir, un.nodename); |
| 415 |
|
| 416 |
if ((rdb1 = XrmGetFileDatabase (fname))) |
| 417 |
XrmMergeDatabases (rdb1, &database); |
| 418 |
} |
| 419 |
} |
| 420 |
|
| 421 |
return database; |
| 422 |
} |
| 423 |
|
| 424 |
bool rxvt_display::ref_init () |
| 425 |
{ |
| 426 |
#ifdef LOCAL_X_IS_UNIX |
| 427 |
if (id[0] == ':') |
| 428 |
{ |
| 429 |
val = rxvt_malloc (5 + strlen (id) + 1); |
| 430 |
strcpy (val, "unix/"); |
| 431 |
strcat (val, id); |
| 432 |
dpy = XOpenDisplay (val); |
| 433 |
free (val); |
| 434 |
} |
| 435 |
else |
| 436 |
#endif |
| 437 |
dpy = 0; |
| 438 |
|
| 439 |
if (!dpy) |
| 440 |
dpy = XOpenDisplay (id); |
| 441 |
|
| 442 |
if (!dpy) |
| 443 |
return false; |
| 444 |
|
| 445 |
screen = DefaultScreen (dpy); |
| 446 |
root = DefaultRootWindow (dpy); |
| 447 |
|
| 448 |
#ifdef HAVE_AFTERIMAGE |
| 449 |
::dpy = dpy; /* init global var from libAfter... */ |
| 450 |
asv = create_asvisual_for_id( dpy, screen, DefaultDepth(dpy,screen), XVisualIDFromVisual(DefaultVisual(dpy,screen)), None, NULL ); |
| 451 |
#endif |
| 452 |
|
| 453 |
assert (sizeof (xa_names) / sizeof (char *) == NUM_XA); |
| 454 |
XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa); |
| 455 |
|
| 456 |
XrmSetDatabase (dpy, get_resources (false)); |
| 457 |
|
| 458 |
#ifdef POINTER_BLANK |
| 459 |
XColor blackcolour; |
| 460 |
blackcolour.red = 0; |
| 461 |
blackcolour.green = 0; |
| 462 |
blackcolour.blue = 0; |
| 463 |
Font f = XLoadFont (dpy, "fixed"); |
| 464 |
blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ', |
| 465 |
&blackcolour, &blackcolour); |
| 466 |
XUnloadFont (dpy, f); |
| 467 |
#endif |
| 468 |
|
| 469 |
int fd = XConnectionNumber (dpy); |
| 470 |
|
| 471 |
// try to detect wether we have a local connection. |
| 472 |
// assume unix domains socket == local, everything else not |
| 473 |
// TODO: might want to check for inet/127.0.0.1 |
| 474 |
is_local = 0; |
| 475 |
sockaddr_un sa; |
| 476 |
socklen_t sl = sizeof (sa); |
| 477 |
|
| 478 |
if (!getsockname (fd, (sockaddr *)&sa, &sl)) |
| 479 |
is_local = sa.sun_family == AF_LOCAL; |
| 480 |
|
| 481 |
x_ev.start (fd, EVENT_READ); |
| 482 |
fcntl (fd, F_SETFD, FD_CLOEXEC); |
| 483 |
|
| 484 |
XSelectInput (dpy, root, PropertyChangeMask); |
| 485 |
|
| 486 |
flush (); |
| 487 |
|
| 488 |
return true; |
| 489 |
} |
| 490 |
|
| 491 |
void |
| 492 |
rxvt_display::ref_next () |
| 493 |
{ |
| 494 |
// TODO: somehow check wether the database files/resources changed |
| 495 |
// before affording re-loading/parsing |
| 496 |
XrmDestroyDatabase (XrmGetDatabase (dpy)); |
| 497 |
XrmSetDatabase (dpy, get_resources (true)); |
| 498 |
} |
| 499 |
|
| 500 |
rxvt_display::~rxvt_display () |
| 501 |
{ |
| 502 |
if (!dpy) |
| 503 |
return; |
| 504 |
|
| 505 |
#ifdef POINTER_BLANK |
| 506 |
XFreeCursor (dpy, blank_cursor); |
| 507 |
#endif |
| 508 |
x_ev.stop (); |
| 509 |
#ifdef USE_XIM |
| 510 |
xims.clear (); |
| 511 |
#endif |
| 512 |
XCloseDisplay (dpy); |
| 513 |
} |
| 514 |
|
| 515 |
#ifdef USE_XIM |
| 516 |
void rxvt_display::im_change_cb () |
| 517 |
{ |
| 518 |
for (im_watcher **i = imw.begin (); i != imw.end (); ++i) |
| 519 |
(*i)->call (); |
| 520 |
} |
| 521 |
|
| 522 |
void rxvt_display::im_change_check () |
| 523 |
{ |
| 524 |
// try to only call im_change_cb when a new input method |
| 525 |
// registers, as xlib crashes due to a race otherwise. |
| 526 |
Atom actual_type, *atoms; |
| 527 |
int actual_format; |
| 528 |
unsigned long nitems, bytes_after; |
| 529 |
|
| 530 |
if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L, |
| 531 |
False, XA_ATOM, &actual_type, &actual_format, |
| 532 |
&nitems, &bytes_after, (unsigned char **)&atoms) |
| 533 |
!= Success ) |
| 534 |
return; |
| 535 |
|
| 536 |
if (actual_type == XA_ATOM && actual_format == 32) |
| 537 |
for (int i = 0; i < nitems; i++) |
| 538 |
if (XGetSelectionOwner (dpy, atoms[i])) |
| 539 |
{ |
| 540 |
im_change_cb (); |
| 541 |
break; |
| 542 |
} |
| 543 |
|
| 544 |
XFree (atoms); |
| 545 |
} |
| 546 |
#endif |
| 547 |
|
| 548 |
void rxvt_display::x_cb (io_watcher &w, short revents) |
| 549 |
{ |
| 550 |
do |
| 551 |
{ |
| 552 |
XEvent xev; |
| 553 |
XNextEvent (dpy, &xev); |
| 554 |
|
| 555 |
#ifdef USE_XIM |
| 556 |
if (!XFilterEvent (&xev, None)) |
| 557 |
{ |
| 558 |
if (xev.type == PropertyNotify |
| 559 |
&& xev.xany.window == root |
| 560 |
&& xev.xproperty.atom == xa[XA_XIM_SERVERS]) |
| 561 |
im_change_check (); |
| 562 |
#endif |
| 563 |
for (int i = xw.size (); i--; ) |
| 564 |
{ |
| 565 |
if (!xw[i]) |
| 566 |
xw.erase_unordered (i); |
| 567 |
else if (xw[i]->window == xev.xany.window) |
| 568 |
xw[i]->call (xev); |
| 569 |
} |
| 570 |
#ifdef USE_XIM |
| 571 |
} |
| 572 |
#endif |
| 573 |
} |
| 574 |
while (XEventsQueued (dpy, QueuedAlready)); |
| 575 |
|
| 576 |
XFlush (dpy); |
| 577 |
} |
| 578 |
|
| 579 |
void rxvt_display::flush () |
| 580 |
{ |
| 581 |
if (XEventsQueued (dpy, QueuedAlready)) |
| 582 |
x_cb (x_ev, EVENT_READ); |
| 583 |
|
| 584 |
XFlush (dpy); |
| 585 |
} |
| 586 |
|
| 587 |
void rxvt_display::reg (xevent_watcher *w) |
| 588 |
{ |
| 589 |
if (!w->active) |
| 590 |
{ |
| 591 |
xw.push_back (w); |
| 592 |
w->active = xw.size (); |
| 593 |
} |
| 594 |
} |
| 595 |
|
| 596 |
void rxvt_display::unreg (xevent_watcher *w) |
| 597 |
{ |
| 598 |
if (w->active) |
| 599 |
{ |
| 600 |
xw[w->active - 1] = 0; |
| 601 |
w->active = 0; |
| 602 |
} |
| 603 |
} |
| 604 |
|
| 605 |
void rxvt_display::set_selection_owner (rxvt_term *owner) |
| 606 |
{ |
| 607 |
if (selection_owner && selection_owner != owner) |
| 608 |
selection_owner->selection_clear (); |
| 609 |
|
| 610 |
selection_owner = owner; |
| 611 |
} |
| 612 |
|
| 613 |
#ifdef USE_XIM |
| 614 |
|
| 615 |
void rxvt_display::reg (im_watcher *w) |
| 616 |
{ |
| 617 |
imw.push_back (w); |
| 618 |
} |
| 619 |
|
| 620 |
void rxvt_display::unreg (im_watcher *w) |
| 621 |
{ |
| 622 |
imw.erase (find (imw.begin (), imw.end (), w)); |
| 623 |
} |
| 624 |
|
| 625 |
rxvt_xim *rxvt_display::get_xim (const char *locale, const char *modifiers) |
| 626 |
{ |
| 627 |
char *id; |
| 628 |
int l, m; |
| 629 |
|
| 630 |
l = strlen (locale); |
| 631 |
m = strlen (modifiers); |
| 632 |
|
| 633 |
if (!(id = (char *)malloc (l + m + 2))) |
| 634 |
return 0; |
| 635 |
|
| 636 |
memcpy (id, locale, l); id[l] = '\n'; |
| 637 |
memcpy (id + l + 1, modifiers, m); id[l + m + 1] = 0; |
| 638 |
|
| 639 |
rxvt_xim *xim = xims.get (id); |
| 640 |
|
| 641 |
free (id); |
| 642 |
|
| 643 |
return xim; |
| 644 |
} |
| 645 |
|
| 646 |
void rxvt_display::put_xim (rxvt_xim *xim) |
| 647 |
{ |
| 648 |
# if XLIB_IS_RACEFREE |
| 649 |
xims.put (xim); |
| 650 |
# endif |
| 651 |
} |
| 652 |
|
| 653 |
#endif |
| 654 |
|
| 655 |
Atom rxvt_display::atom (const char *name) |
| 656 |
{ |
| 657 |
return XInternAtom (dpy, name, False); |
| 658 |
} |
| 659 |
|
| 660 |
///////////////////////////////////////////////////////////////////////////// |
| 661 |
|
| 662 |
template class refcache<rxvt_display>; |
| 663 |
refcache<rxvt_display> displays; |
| 664 |
|
| 665 |
///////////////////////////////////////////////////////////////////////////// |
| 666 |
// |
| 667 |
|
| 668 |
static unsigned int |
| 669 |
insert_component (unsigned int value, unsigned int mask, unsigned int shift) |
| 670 |
{ |
| 671 |
return (value * (mask + 1) >> 16) << shift; |
| 672 |
} |
| 673 |
|
| 674 |
bool |
| 675 |
rxvt_color::alloc (rxvt_screen *screen, const rgba &color) |
| 676 |
{ |
| 677 |
#if XFT |
| 678 |
XRenderPictFormat *format; |
| 679 |
|
| 680 |
// FUCKING Xft gets it wrong, of course, so work around it. |
| 681 |
// Transparency users should eat shit and die, and then |
| 682 |
// XRenderQueryPictIndexValues themselves plenty. |
| 683 |
if ((screen->visual->c_class == TrueColor) |
| 684 |
&& (format = XRenderFindVisualFormat (screen->dpy, screen->visual))) |
| 685 |
{ |
| 686 |
// the fun lies in doing everything manually... |
| 687 |
c.color.red = color.r; |
| 688 |
c.color.green = color.g; |
| 689 |
c.color.blue = color.b; |
| 690 |
c.color.alpha = color.a; |
| 691 |
|
| 692 |
c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red ) |
| 693 |
| insert_component (color.g, format->direct.greenMask, format->direct.green) |
| 694 |
| insert_component (color.b, format->direct.blueMask , format->direct.blue ) |
| 695 |
| insert_component (color.a, format->direct.alphaMask, format->direct.alpha); |
| 696 |
|
| 697 |
return true; |
| 698 |
} |
| 699 |
else |
| 700 |
{ |
| 701 |
XRenderColor d; |
| 702 |
|
| 703 |
d.red = color.r; |
| 704 |
d.green = color.g; |
| 705 |
d.blue = color.b; |
| 706 |
d.alpha = color.a; |
| 707 |
|
| 708 |
return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c); |
| 709 |
} |
| 710 |
#else |
| 711 |
c.red = color.r; |
| 712 |
c.green = color.g; |
| 713 |
c.blue = color.b; |
| 714 |
|
| 715 |
if (screen->visual->c_class == TrueColor) |
| 716 |
{ |
| 717 |
c.pixel = (color.r >> (16 - popcount (screen->visual->red_mask )) << ctz (screen->visual->red_mask )) |
| 718 |
| (color.g >> (16 - popcount (screen->visual->green_mask)) << ctz (screen->visual->green_mask)) |
| 719 |
| (color.b >> (16 - popcount (screen->visual->blue_mask )) << ctz (screen->visual->blue_mask )); |
| 720 |
|
| 721 |
return true; |
| 722 |
} |
| 723 |
else if (XAllocColor (screen->dpy, screen->cmap, &c)) |
| 724 |
return true; |
| 725 |
else |
| 726 |
c.pixel = (color.r + color.g + color.b) > 128*3 |
| 727 |
? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy)) |
| 728 |
: BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy)); |
| 729 |
#endif |
| 730 |
|
| 731 |
return false; |
| 732 |
} |
| 733 |
|
| 734 |
bool |
| 735 |
rxvt_color::set (rxvt_screen *screen, const char *name) |
| 736 |
{ |
| 737 |
rgba c; |
| 738 |
char eos; |
| 739 |
int skip; |
| 740 |
|
| 741 |
// parse the nonstandard "[alphapercent]" prefix |
| 742 |
if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip)) |
| 743 |
{ |
| 744 |
c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a); |
| 745 |
name += skip; |
| 746 |
} |
| 747 |
else |
| 748 |
c.a = rgba::MAX_CC; |
| 749 |
|
| 750 |
// parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format |
| 751 |
if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos)) |
| 752 |
{ |
| 753 |
XColor xc, xc_exact; |
| 754 |
|
| 755 |
if (XParseColor (screen->dpy, screen->cmap, name, &xc)) |
| 756 |
{ |
| 757 |
c.r = xc.red; |
| 758 |
c.g = xc.green; |
| 759 |
c.b = xc.blue; |
| 760 |
} |
| 761 |
else |
| 762 |
{ |
| 763 |
c.r = 0xffff; |
| 764 |
c.g = 0x6969; |
| 765 |
c.b = 0xb4b4; |
| 766 |
|
| 767 |
rxvt_warn ("unable to parse color '%s', using pink instead.\n", name); |
| 768 |
} |
| 769 |
} |
| 770 |
|
| 771 |
return set (screen, c); |
| 772 |
} |
| 773 |
|
| 774 |
bool |
| 775 |
rxvt_color::set (rxvt_screen *screen, const rgba &color) |
| 776 |
{ |
| 777 |
bool got = alloc (screen, color); |
| 778 |
|
| 779 |
#if !ENABLE_MINIMAL |
| 780 |
int cmap_size = screen->visual->map_entries; |
| 781 |
|
| 782 |
if (!got |
| 783 |
&& screen->visual->c_class == PseudoColor |
| 784 |
&& cmap_size < 4096) |
| 785 |
{ |
| 786 |
XColor *colors = new XColor [screen->visual->map_entries]; |
| 787 |
|
| 788 |
for (int i = 0; i < cmap_size; i++) |
| 789 |
colors [i].pixel = i; |
| 790 |
|
| 791 |
// many kilobytes transfer per colour, but pseudocolor isn't worth |
| 792 |
// many extra optimisations. |
| 793 |
XQueryColors (screen->dpy, screen->cmap, colors, cmap_size); |
| 794 |
|
| 795 |
int diff = 0x7fffffffUL; |
| 796 |
XColor *best = colors; |
| 797 |
|
| 798 |
for (int i = 0; i < cmap_size; i++) |
| 799 |
{ |
| 800 |
int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2)) |
| 801 |
+ (squared_diff<int> (color.g >> 2, colors [i].green >> 2)) |
| 802 |
+ (squared_diff<int> (color.b >> 2, colors [i].blue >> 2)); |
| 803 |
|
| 804 |
if (d < diff) |
| 805 |
{ |
| 806 |
diff = d; |
| 807 |
best = colors + i; |
| 808 |
} |
| 809 |
} |
| 810 |
|
| 811 |
//rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n", |
| 812 |
// color.r, color.g, color.b, best->red, best->green, best->blue, diff); |
| 813 |
|
| 814 |
got = alloc (screen, rgba (best->red, best->green, best->blue)); |
| 815 |
|
| 816 |
delete [] colors; |
| 817 |
} |
| 818 |
#endif |
| 819 |
|
| 820 |
return got; |
| 821 |
} |
| 822 |
|
| 823 |
void |
| 824 |
rxvt_color::get (rgba &color) |
| 825 |
{ |
| 826 |
#if XFT |
| 827 |
color.r = c.color.red; |
| 828 |
color.g = c.color.green; |
| 829 |
color.b = c.color.blue; |
| 830 |
color.a = c.color.alpha; |
| 831 |
#else |
| 832 |
color.r = c.red; |
| 833 |
color.g = c.green; |
| 834 |
color.b = c.blue; |
| 835 |
color.a = rgba::MAX_CC; |
| 836 |
#endif |
| 837 |
} |
| 838 |
|
| 839 |
void |
| 840 |
rxvt_color::get (XColor &color) |
| 841 |
{ |
| 842 |
rgba c; |
| 843 |
get (c); |
| 844 |
|
| 845 |
color.red = c.r; |
| 846 |
color.green = c.g; |
| 847 |
color.blue = c.b; |
| 848 |
color.pixel = (Pixel)*this; |
| 849 |
} |
| 850 |
|
| 851 |
void |
| 852 |
rxvt_color::free (rxvt_screen *screen) |
| 853 |
{ |
| 854 |
if (screen->visual->c_class == TrueColor) |
| 855 |
return; // nothing to do |
| 856 |
|
| 857 |
#if XFT |
| 858 |
XftColorFree (screen->dpy, screen->visual, screen->cmap, &c); |
| 859 |
#else |
| 860 |
XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes); |
| 861 |
#endif |
| 862 |
} |
| 863 |
|
| 864 |
void |
| 865 |
rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to) |
| 866 |
{ |
| 867 |
rgba c; |
| 868 |
get (c); |
| 869 |
|
| 870 |
result.set ( |
| 871 |
screen, |
| 872 |
rgba ( |
| 873 |
lerp (c.r, to.r, percent), |
| 874 |
lerp (c.g, to.g, percent), |
| 875 |
lerp (c.b, to.b, percent), |
| 876 |
lerp (c.a, to.a, percent) |
| 877 |
) |
| 878 |
); |
| 879 |
} |
| 880 |
|
