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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[] = |
| 42 |
{ |
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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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"AVERAGE_WIDTH", |
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"WEIGHT_NAME", |
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"SLANT", |
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"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 |
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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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#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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#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) |
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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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|
| 342 |
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); |
| 362 |
#endif |
| 363 |
|
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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 |
| 370 |
is_local = 0; |
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sockaddr_un sa; |
| 372 |
socklen_t sl = sizeof (sa); |
| 373 |
|
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if (!getsockname (fd, (sockaddr *)&sa, &sl)) |
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is_local = sa.sun_family == AF_LOCAL; |
| 376 |
#endif |
| 377 |
|
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x_ev.start (fd, EVENT_READ); |
| 379 |
fcntl (fd, F_SETFD, FD_CLOEXEC); |
| 380 |
|
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XSelectInput (display, root, PropertyChangeMask); |
| 382 |
|
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flush (); |
| 384 |
|
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return true; |
| 386 |
} |
| 387 |
|
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void |
| 389 |
rxvt_display::ref_next () |
| 390 |
{ |
| 391 |
// TODO: somehow check wether the database files/resources changed |
| 392 |
// before re-loading/parsing |
| 393 |
XrmDestroyDatabase (XrmGetDatabase (display)); |
| 394 |
XrmSetDatabase (display, get_resources ()); |
| 395 |
} |
| 396 |
|
| 397 |
rxvt_display::~rxvt_display () |
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{ |
| 399 |
if (!display) |
| 400 |
return; |
| 401 |
|
| 402 |
#ifdef POINTER_BLANK |
| 403 |
XFreeCursor (display, blank_cursor); |
| 404 |
#endif |
| 405 |
x_ev.stop (); |
| 406 |
#ifdef USE_XIM |
| 407 |
xims.clear (); |
| 408 |
#endif |
| 409 |
XCloseDisplay (display); |
| 410 |
} |
| 411 |
|
| 412 |
#ifdef USE_XIM |
| 413 |
void rxvt_display::im_change_cb () |
| 414 |
{ |
| 415 |
for (im_watcher **i = imw.begin (); i != imw.end (); ++i) |
| 416 |
(*i)->call (); |
| 417 |
} |
| 418 |
|
| 419 |
void rxvt_display::im_change_check () |
| 420 |
{ |
| 421 |
// try to only call im_change_cb when a new input method |
| 422 |
// registers, as xlib crashes due to a race otherwise. |
| 423 |
Atom actual_type, *atoms; |
| 424 |
int actual_format; |
| 425 |
unsigned long nitems, bytes_after; |
| 426 |
|
| 427 |
if (XGetWindowProperty (display, root, xa[XA_XIM_SERVERS], 0L, 1000000L, |
| 428 |
False, XA_ATOM, &actual_type, &actual_format, |
| 429 |
&nitems, &bytes_after, (unsigned char **)&atoms) |
| 430 |
!= Success ) |
| 431 |
return; |
| 432 |
|
| 433 |
if (actual_type == XA_ATOM && actual_format == 32) |
| 434 |
for (int i = 0; i < nitems; i++) |
| 435 |
if (XGetSelectionOwner (display, atoms[i])) |
| 436 |
{ |
| 437 |
im_change_cb (); |
| 438 |
break; |
| 439 |
} |
| 440 |
|
| 441 |
XFree (atoms); |
| 442 |
} |
| 443 |
#endif |
| 444 |
|
| 445 |
void rxvt_display::x_cb (io_watcher &w, short revents) |
| 446 |
{ |
| 447 |
do |
| 448 |
{ |
| 449 |
XEvent xev; |
| 450 |
XNextEvent (display, &xev); |
| 451 |
|
| 452 |
#ifdef USE_XIM |
| 453 |
if (!XFilterEvent (&xev, None)) |
| 454 |
{ |
| 455 |
if (xev.type == PropertyNotify |
| 456 |
&& xev.xany.window == root |
| 457 |
&& xev.xproperty.atom == xa[XA_XIM_SERVERS]) |
| 458 |
im_change_check (); |
| 459 |
#endif |
| 460 |
for (int i = xw.size (); i--; ) |
| 461 |
{ |
| 462 |
if (!xw[i]) |
| 463 |
xw.erase_unordered (i); |
| 464 |
else if (xw[i]->window == xev.xany.window) |
| 465 |
xw[i]->call (xev); |
| 466 |
} |
| 467 |
#ifdef USE_XIM |
| 468 |
} |
| 469 |
#endif |
| 470 |
} |
| 471 |
while (XEventsQueued (display, QueuedAlready)); |
| 472 |
|
| 473 |
XFlush (display); |
| 474 |
} |
| 475 |
|
| 476 |
void rxvt_display::flush () |
| 477 |
{ |
| 478 |
if (XEventsQueued (display, QueuedAlready)) |
| 479 |
x_cb (x_ev, EVENT_READ); |
| 480 |
|
| 481 |
XFlush (display); |
| 482 |
} |
| 483 |
|
| 484 |
void rxvt_display::reg (xevent_watcher *w) |
| 485 |
{ |
| 486 |
xw.push_back (w); |
| 487 |
w->active = xw.size (); |
| 488 |
} |
| 489 |
|
| 490 |
void rxvt_display::unreg (xevent_watcher *w) |
| 491 |
{ |
| 492 |
if (w->active) |
| 493 |
xw[w->active - 1] = 0; |
| 494 |
} |
| 495 |
|
| 496 |
void rxvt_display::set_selection_owner (rxvt_term *owner) |
| 497 |
{ |
| 498 |
if (selection_owner && selection_owner != owner) |
| 499 |
selection_owner->selection_clear (); |
| 500 |
|
| 501 |
selection_owner = owner; |
| 502 |
} |
| 503 |
|
| 504 |
#ifdef USE_XIM |
| 505 |
void rxvt_display::reg (im_watcher *w) |
| 506 |
{ |
| 507 |
imw.push_back (w); |
| 508 |
} |
| 509 |
|
| 510 |
void rxvt_display::unreg (im_watcher *w) |
| 511 |
{ |
| 512 |
imw.erase (find (imw.begin (), imw.end (), w)); |
| 513 |
} |
| 514 |
|
| 515 |
rxvt_xim *rxvt_display::get_xim (const char *locale, const char *modifiers) |
| 516 |
{ |
| 517 |
char *id; |
| 518 |
int l, m; |
| 519 |
|
| 520 |
l = strlen (locale); |
| 521 |
m = strlen (modifiers); |
| 522 |
|
| 523 |
if (!(id = (char *)malloc (l + m + 2))) |
| 524 |
return 0; |
| 525 |
|
| 526 |
memcpy (id, locale, l); id[l] = '\n'; |
| 527 |
memcpy (id + l + 1, modifiers, m); id[l + m + 1] = 0; |
| 528 |
|
| 529 |
rxvt_xim *xim = xims.get (id); |
| 530 |
|
| 531 |
free (id); |
| 532 |
|
| 533 |
return xim; |
| 534 |
} |
| 535 |
|
| 536 |
void rxvt_display::put_xim (rxvt_xim *xim) |
| 537 |
{ |
| 538 |
#if XLIB_IS_RACEFREE |
| 539 |
xims.put (xim); |
| 540 |
#endif |
| 541 |
} |
| 542 |
#endif |
| 543 |
|
| 544 |
Atom rxvt_display::atom (const char *name) |
| 545 |
{ |
| 546 |
return XInternAtom (display, name, False); |
| 547 |
} |
| 548 |
|
| 549 |
///////////////////////////////////////////////////////////////////////////// |
| 550 |
|
| 551 |
template class refcache<rxvt_display>; |
| 552 |
refcache<rxvt_display> displays; |
| 553 |
|
| 554 |
///////////////////////////////////////////////////////////////////////////// |
| 555 |
|
| 556 |
bool |
| 557 |
rxvt_color::set (rxvt_screen *screen, const char *name) |
| 558 |
{ |
| 559 |
#if XFT |
| 560 |
int l = strlen (name); |
| 561 |
rxvt_rgba r; |
| 562 |
char eos; |
| 563 |
int mult; |
| 564 |
|
| 565 |
// shortcutting this saves countless server RTTs for the built-in colours |
| 566 |
if (l == 3+3*3 && 3 == sscanf (name, "rgb:%hx/%hx/%hx/%hx%c", &r.r, &r.g, &r.b, &r.a, &eos)) |
| 567 |
{ |
| 568 |
r.a = rxvt_rgba::MAX_CC; |
| 569 |
mult = rxvt_rgba::MAX_CC / 0x00ff; |
| 570 |
} |
| 571 |
|
| 572 |
// parse a number of non-standard ARGB colour specifications |
| 573 |
else if ( l == 1+4*1 && 4 == sscanf (name, "#%1hx%1hx%1hx%1hx%c", &r.a, &r.r, &r.g, &r.b, &eos)) |
| 574 |
mult = rxvt_rgba::MAX_CC / 0x000f; |
| 575 |
else if (l == 1+4*2 && 4 == sscanf (name, "#%2hx%2hx%2hx%2hx%c", &r.a, &r.r, &r.g, &r.b, &eos)) |
| 576 |
mult = rxvt_rgba::MAX_CC / 0x00ff; |
| 577 |
else if (l == 1+4*4 && 4 == sscanf (name, "#%4hx%4hx%4hx%4hx%c", &r.a, &r.r, &r.g, &r.b, &eos)) |
| 578 |
mult = rxvt_rgba::MAX_CC / 0xffff; |
| 579 |
else if (l == 4+5*4 && 4 == sscanf (name, "rgba:%hx/%hx/%hx/%hx%c", &r.r, &r.g, &r.b, &r.a, &eos)) |
| 580 |
mult = rxvt_rgba::MAX_CC / 0xffff; |
| 581 |
|
| 582 |
// slow case: server round trip |
| 583 |
else |
| 584 |
return XftColorAllocName (screen->xdisp, screen->visual, screen->cmap, name, &c); |
| 585 |
|
| 586 |
r.r *= mult; r.g *= mult; r.b *= mult; r.a *= mult; |
| 587 |
|
| 588 |
return set (screen, r); |
| 589 |
#else |
| 590 |
XColor xc; |
| 591 |
|
| 592 |
if (XParseColor (screen->xdisp, screen->cmap, name, &xc)) |
| 593 |
return set (screen, rxvt_rgba (xc.red, xc.green, xc.blue)); |
| 594 |
|
| 595 |
return false; |
| 596 |
#endif |
| 597 |
} |
| 598 |
|
| 599 |
bool |
| 600 |
rxvt_color::set (rxvt_screen *screen, rxvt_rgba rgba) |
| 601 |
{ |
| 602 |
#if XFT |
| 603 |
XRenderPictFormat *format; |
| 604 |
|
| 605 |
// FUCKING Xft gets it wrong, of course, so work around it |
| 606 |
// transparency users should eat shit and die, and then |
| 607 |
// XRenderQueryPictIndexValues themselves plenty. |
| 608 |
if (screen->visual->c_class == TrueColor |
| 609 |
&& (format = XRenderFindVisualFormat (screen->xdisp, screen->visual))) |
| 610 |
{ |
| 611 |
// the fun lies in doing everything manually... |
| 612 |
c.color.red = rgba.r; |
| 613 |
c.color.green = rgba.g; |
| 614 |
c.color.blue = rgba.b; |
| 615 |
c.color.alpha = rgba.a; |
| 616 |
|
| 617 |
c.pixel = ((rgba.r * format->direct.redMask / rxvt_rgba::MAX_CC) << format->direct.red ) |
| 618 |
| ((rgba.g * format->direct.greenMask / rxvt_rgba::MAX_CC) << format->direct.green) |
| 619 |
| ((rgba.b * format->direct.blueMask / rxvt_rgba::MAX_CC) << format->direct.blue ) |
| 620 |
| ((rgba.a * format->direct.alphaMask / rxvt_rgba::MAX_CC) << format->direct.alpha); |
| 621 |
|
| 622 |
return true; |
| 623 |
} |
| 624 |
else |
| 625 |
{ |
| 626 |
XRenderColor d; |
| 627 |
|
| 628 |
d.red = rgba.r; |
| 629 |
d.green = rgba.g; |
| 630 |
d.blue = rgba.b; |
| 631 |
d.alpha = rgba.a; |
| 632 |
|
| 633 |
return XftColorAllocValue (screen->xdisp, screen->visual, screen->cmap, &d, &c); |
| 634 |
} |
| 635 |
|
| 636 |
return false; |
| 637 |
#else |
| 638 |
XColor xc; |
| 639 |
|
| 640 |
xc.red = rgba.r; |
| 641 |
xc.green = rgba.g; |
| 642 |
xc.blue = rgba.b; |
| 643 |
xc.flags = DoRed | DoGreen | DoBlue; |
| 644 |
|
| 645 |
if (XAllocColor (screen->xdisp, screen->cmap, &xc)) |
| 646 |
{ |
| 647 |
p = xc.pixel; |
| 648 |
return true; |
| 649 |
} |
| 650 |
|
| 651 |
return false; |
| 652 |
#endif |
| 653 |
} |
| 654 |
|
| 655 |
void |
| 656 |
rxvt_color::get (rxvt_screen *screen, rxvt_rgba &rgba) |
| 657 |
{ |
| 658 |
#if XFT |
| 659 |
rgba.r = c.color.red; |
| 660 |
rgba.g = c.color.green; |
| 661 |
rgba.b = c.color.blue; |
| 662 |
rgba.a = c.color.alpha; |
| 663 |
#else |
| 664 |
XColor c; |
| 665 |
|
| 666 |
c.pixel = p; |
| 667 |
XQueryColor (screen->xdisp, screen->cmap, &c); |
| 668 |
|
| 669 |
rgba.r = c.red; |
| 670 |
rgba.g = c.green; |
| 671 |
rgba.b = c.blue; |
| 672 |
rgba.a = rxvt_rgba::MAX_CC; |
| 673 |
#endif |
| 674 |
} |
| 675 |
|
| 676 |
void |
| 677 |
rxvt_color::free (rxvt_screen *screen) |
| 678 |
{ |
| 679 |
#if XFT |
| 680 |
XftColorFree (screen->xdisp, screen->visual, screen->cmap, &c); |
| 681 |
#else |
| 682 |
XFreeColors (screen->xdisp, screen->cmap, &p, 1, AllPlanes); |
| 683 |
#endif |
| 684 |
} |
| 685 |
|
| 686 |
rxvt_color |
| 687 |
rxvt_color::fade (rxvt_screen *screen, int percent) |
| 688 |
{ |
| 689 |
rxvt_color faded; |
| 690 |
|
| 691 |
rxvt_rgba c; |
| 692 |
get (screen, c); |
| 693 |
|
| 694 |
c.r = lerp (0, c.r, percent); |
| 695 |
c.g = lerp (0, c.g, percent); |
| 696 |
c.b = lerp (0, c.b, percent); |
| 697 |
|
| 698 |
faded.set (screen, c); |
| 699 |
|
| 700 |
return faded; |
| 701 |
} |
| 702 |
|
| 703 |
rxvt_color |
| 704 |
rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &fadeto) |
| 705 |
{ |
| 706 |
rxvt_rgba c, fc; |
| 707 |
rxvt_color faded; |
| 708 |
|
| 709 |
get (screen, c); |
| 710 |
fadeto.get (screen, fc); |
| 711 |
|
| 712 |
faded.set ( |
| 713 |
screen, |
| 714 |
rxvt_rgba ( |
| 715 |
lerp (fc.r, c.r, percent), |
| 716 |
lerp (fc.g, c.g, percent), |
| 717 |
lerp (fc.b, c.b, percent), |
| 718 |
lerp (fc.a, c.a, percent) |
| 719 |
) |
| 720 |
); |
| 721 |
|
| 722 |
return faded; |
| 723 |
} |
| 724 |
|
