--- rxvt-unicode/src/rxvttoolkit.C 2006/01/30 17:43:20 1.36 +++ rxvt-unicode/src/rxvttoolkit.C 2011/02/12 00:30:00 1.117 @@ -1,9 +1,10 @@ -/*--------------------------------*-C-*---------------------------------* +/*----------------------------------------------------------------------* * File: rxvttoolkit.C *----------------------------------------------------------------------* * * All portions of code are copyright by their respective author/s. - * Copyright (c) 2003-2004 Marc Lehmann + * Copyright (c) 2003-2007 Marc Lehmann + * Copyright (c) 2011 Emanuele Giaquinta * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -28,17 +29,14 @@ #include #include - -#ifndef NO_SLOW_LINK_SUPPORT -# include -# include -#endif +#include +#include #if XFT # include #endif -const char *const xa_names[] = +static const char *const xa_names[] = { "TEXT", "COMPOUND_TEXT", @@ -64,12 +62,13 @@ "_NET_WM_NAME", "_NET_WM_ICON_NAME", "_NET_WM_PING", + "_NET_WM_ICON", #endif #if USE_XIM "WM_LOCALE_NAME", "XIM_SERVERS", #endif -#ifdef TRANSPARENT +#ifdef ENABLE_TRANSPARENCY "_XROOTPMAP_ID", "ESETROOT_PMAP_ID", #endif @@ -83,6 +82,14 @@ "XDCCC_LINEAR_RGB_MATRICES", "WM_COLORMAP_WINDOWS", "WM_STATE", + "cursor", +# if USE_XIM + "TRANSPORT", + "LOCALES", + "_XIM_PROTOCOL", + "_XIM_XCONNECT", + "_XIM_MOREDATA", +# endif #endif }; @@ -171,7 +178,7 @@ { display = GET_R->display; //HACK: TODO - xim = XOpenIM (display->display, NULL, NULL, NULL); + xim = XOpenIM (display->dpy, 0, 0, 0); if (!xim) return false; @@ -180,7 +187,7 @@ ximcallback.client_data = (XPointer)this; ximcallback.callback = im_destroy_cb; - XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL); + XSetIMValues (xim, XNDestroyCallback, &ximcallback, (char *)0); return true; } @@ -195,13 +202,60 @@ ///////////////////////////////////////////////////////////////////////////// +#if XFT +rxvt_drawable::~rxvt_drawable () +{ + if (xftdrawable) + XftDrawDestroy (xftdrawable); +} + +rxvt_drawable::operator XftDraw *() +{ + if (!xftdrawable) + xftdrawable = XftDrawCreate (screen->dpy, drawable, screen->visual, screen->cmap); + + return xftdrawable; +} +#endif + +///////////////////////////////////////////////////////////////////////////// + +#if XFT + +// not strictly necessary as it is only used with superclass of zero_initialised +rxvt_screen::rxvt_screen () +: scratch_area (0) +{ +} + +rxvt_drawable &rxvt_screen::scratch_drawable (int w, int h) +{ + if (!scratch_area || w > scratch_w || h > scratch_h) + { + if (scratch_area) + { + XFreePixmap (dpy, scratch_area->drawable); + delete scratch_area; + } + + Pixmap pm = XCreatePixmap (dpy, RootWindowOfScreen (ScreenOfDisplay (dpy, display->screen)), + scratch_w = w, scratch_h = h, depth); + + scratch_area = new rxvt_drawable (this, pm); + } + + return *scratch_area; +} + +#endif + void rxvt_screen::set (rxvt_display *disp) { display = disp; - xdisp = disp->display; + dpy = disp->dpy; - Screen *screen = ScreenOfDisplay (xdisp, disp->screen); + Screen *screen = ScreenOfDisplay (dpy, disp->screen); depth = DefaultDepthOfScreen (screen); visual = DefaultVisualOfScreen (screen); @@ -209,18 +263,16 @@ } void -rxvt_screen::set (rxvt_display *disp, int bitdepth) +rxvt_screen::select_visual (int bitdepth) { - set (disp); - #if XFT XVisualInfo vinfo; - if (XMatchVisualInfo (xdisp, display->screen, bitdepth, TrueColor, &vinfo)) + if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo)) { depth = bitdepth; visual = vinfo.visual; - cmap = XCreateColormap (xdisp, disp->root, visual, AllocNone); + cmap = XCreateColormap (dpy, display->root, visual, AllocNone); } #endif } @@ -228,39 +280,53 @@ void rxvt_screen::clear () { - if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (xdisp, display->screen))) - XFreeColormap (xdisp, cmap); +#if XFT + if (scratch_area) + { + XFreePixmap (dpy, scratch_area->drawable); + delete scratch_area; + } +#endif + + if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (dpy, display->screen))) + XFreeColormap (dpy, cmap); } ///////////////////////////////////////////////////////////////////////////// rxvt_display::rxvt_display (const char *id) : refcounted (id) -, x_ev (this, &rxvt_display::x_cb) , selection_owner (0) +, clipboard_owner (0) { + x_ev .set (this); + flush_ev.set (this); } XrmDatabase -rxvt_display::get_resources () +rxvt_display::get_resources (bool refresh) { - char *homedir = (char *)getenv ("HOME"); + char *homedir = getenv ("HOME"); char fname[1024]; /* * get resources using the X library function */ char *displayResource, *xe; - XrmDatabase database, rdb1; + XrmDatabase rdb1, database = 0; - database = NULL; +#if !XLIB_ILLEGAL_ACCESS + /* work around a bug in XrmSetDatabase where it frees the db, see ref_next */ + database = XrmGetStringDatabase (""); +#endif // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20 + // as opposed to "standard practise", we always read in ~/.Xdefaults // 6. System wide per application default file. /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */ - if ((xe = (char *)getenv ("XAPPLRESDIR"))) + if ((xe = getenv ("XAPPLRESDIR"))) { snprintf (fname, sizeof (fname), "%s/%s", xe, RESCLASS); @@ -272,26 +338,66 @@ // none // 4. User's defaults file. - /* Get any Xserver defaults */ - displayResource = XResourceManagerString (display); - - if (displayResource != NULL) + if (homedir) { - if ((rdb1 = XrmGetStringDatabase (displayResource))) + snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir); + + if ((rdb1 = XrmGetFileDatabase (fname))) XrmMergeDatabases (rdb1, &database); } - else if (homedir) + + /* Get any Xserver defaults */ + if (refresh) { - snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir); + // fucking xlib keeps a copy of the rm string + Atom actual_type; + int actual_format; + unsigned long nitems, nremaining; + char *val = 0; + +#if XLIB_ILLEGAL_ACCESS + if (dpy->xdefaults) + XFree (dpy->xdefaults); +#endif + + if (XGetWindowProperty (dpy, RootWindow (dpy, 0), XA_RESOURCE_MANAGER, + 0L, 100000000L, False, + XA_STRING, &actual_type, &actual_format, + &nitems, &nremaining, + (unsigned char **)&val) == Success + && actual_type == XA_STRING + && actual_format == 8) + displayResource = val; + else + { + displayResource = 0; - if ((rdb1 = XrmGetFileDatabase (fname))) + if (val) + XFree (val); + } + +#if XLIB_ILLEGAL_ACCESS + dpy->xdefaults = displayResource; +#endif + } + else + displayResource = XResourceManagerString (dpy); + + if (displayResource) + { + if ((rdb1 = XrmGetStringDatabase (displayResource))) XrmMergeDatabases (rdb1, &database); } +#if !XLIB_ILLEGAL_ACCESS + if (refresh && displayResource) + XFree (displayResource); +#endif + /* Get screen specific resources */ - displayResource = XScreenResourceString (ScreenOfDisplay (display, screen)); + displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen)); - if (displayResource != NULL) + if (displayResource) { if ((rdb1 = XrmGetStringDatabase (displayResource))) /* Merge with screen-independent resources */ @@ -302,7 +408,7 @@ // 3. User's per host defaults file /* Add in XENVIRONMENT file */ - if ((xe = (char *)getenv ("XENVIRONMENT")) + if ((xe = getenv ("XENVIRONMENT")) && (rdb1 = XrmGetFileDatabase (xe))) XrmMergeDatabases (rdb1, &database); else if (homedir) @@ -326,59 +432,58 @@ #ifdef LOCAL_X_IS_UNIX if (id[0] == ':') { - val = rxvt_malloc (5 + strlen (id) + 1); + if (!(val = rxvt_temp_buf (5 + strlen (id) + 1))) + return false; strcpy (val, "unix/"); strcat (val, id); - display = XOpenDisplay (val); - free (val); + dpy = XOpenDisplay (val); } else #endif - display = 0; + dpy = 0; - if (!display) - display = XOpenDisplay (id); + if (!dpy) + dpy = XOpenDisplay (id); - if (!display) + if (!dpy) return false; - screen = DefaultScreen (display); - root = DefaultRootWindow (display); + screen = DefaultScreen (dpy); + root = DefaultRootWindow (dpy); - assert (sizeof (xa_names) / sizeof (char *) == NUM_XA); - XInternAtoms (display, (char **)xa_names, NUM_XA, False, xa); + assert (ARRAY_LENGTH(xa_names) == NUM_XA); + XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa); - XrmSetDatabase (display, get_resources ()); + XrmSetDatabase (dpy, get_resources (false)); #ifdef POINTER_BLANK XColor blackcolour; blackcolour.red = 0; blackcolour.green = 0; blackcolour.blue = 0; - Font f = XLoadFont (display, "fixed"); - blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', + Font f = XLoadFont (dpy, "fixed"); + blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ', &blackcolour, &blackcolour); - XUnloadFont (display, f); + XUnloadFont (dpy, f); #endif - int fd = XConnectionNumber (display); + int fd = XConnectionNumber (dpy); -#ifndef NO_SLOW_LINK_SUPPORT - // try to detect wether we have a local connection. - // assume unix domains socket == local, everything else not + // try to detect whether we have a local connection. + // assume unix domain socket == local, everything else not // TODO: might want to check for inet/127.0.0.1 is_local = 0; sockaddr_un sa; socklen_t sl = sizeof (sa); if (!getsockname (fd, (sockaddr *)&sa, &sl)) - is_local = sa.sun_family == AF_LOCAL; -#endif + is_local = sa.sun_family == AF_UNIX; - x_ev.start (fd, EVENT_READ); + flush_ev.start (); + x_ev.start (fd, ev::READ); fcntl (fd, F_SETFD, FD_CLOEXEC); - XSelectInput (display, root, PropertyChangeMask); + XSelectInput (dpy, root, PropertyChangeMask); flush (); @@ -388,25 +493,31 @@ void rxvt_display::ref_next () { - // TODO: somehow check wether the database files/resources changed - // before re-loading/parsing - XrmDestroyDatabase (XrmGetDatabase (display)); - XrmSetDatabase (display, get_resources ()); + // TODO: somehow check whether the database files/resources changed + // before affording re-loading/parsing + XrmDestroyDatabase (XrmGetDatabase (dpy)); +#if XLIB_ILLEGAL_ACCESS + /* work around a bug in XrmSetDatabase where it frees the db */ + dpy->db = 0; +#endif + XrmSetDatabase (dpy, get_resources (true)); } rxvt_display::~rxvt_display () { - if (!display) + if (!dpy) return; #ifdef POINTER_BLANK - XFreeCursor (display, blank_cursor); + XFreeCursor (dpy, blank_cursor); #endif x_ev.stop (); + flush_ev.stop (); #ifdef USE_XIM xims.clear (); #endif - XCloseDisplay (display); + XrmDestroyDatabase (XrmGetDatabase (dpy)); + XCloseDisplay (dpy); } #ifdef USE_XIM @@ -424,15 +535,15 @@ int actual_format; unsigned long nitems, bytes_after; - if (XGetWindowProperty (display, root, xa[XA_XIM_SERVERS], 0L, 1000000L, + if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L, False, XA_ATOM, &actual_type, &actual_format, &nitems, &bytes_after, (unsigned char **)&atoms) - != Success ) + != Success) return; - if (actual_type == XA_ATOM && actual_format == 32) + if (actual_type == XA_ATOM && actual_format == 32) for (int i = 0; i < nitems; i++) - if (XGetSelectionOwner (display, atoms[i])) + if (XGetSelectionOwner (dpy, atoms[i])) { im_change_cb (); break; @@ -442,66 +553,80 @@ } #endif -void rxvt_display::x_cb (io_watcher &w, short revents) +void rxvt_display::x_cb (ev::io &w, int revents) { - do - { - XEvent xev; - XNextEvent (display, &xev); + flush_ev.start (); +} + +void rxvt_display::flush_cb (ev::prepare &w, int revents) +{ + while (XEventsQueued (dpy, QueuedAfterFlush)) + do + { + XEvent xev; + XNextEvent (dpy, &xev); #ifdef USE_XIM - if (!XFilterEvent (&xev, None)) - { - if (xev.type == PropertyNotify - && xev.xany.window == root - && xev.xproperty.atom == xa[XA_XIM_SERVERS]) - im_change_check (); -#endif - for (int i = xw.size (); i--; ) - { - if (!xw[i]) - xw.erase_unordered (i); - else if (xw[i]->window == xev.xany.window) - xw[i]->call (xev); - } + if (!XFilterEvent (&xev, None)) + { + if (xev.type == PropertyNotify + && xev.xany.window == root + && xev.xproperty.atom == xa[XA_XIM_SERVERS]) + im_change_check (); +#endif + if (xev.type == MappingNotify) + XRefreshKeyboardMapping (&xev.xmapping); + + for (int i = xw.size (); i--; ) + { + if (!xw[i]) + xw.erase_unordered (i); + else if (xw[i]->window == xev.xany.window) + xw[i]->call (xev); + } #ifdef USE_XIM - } + } #endif - } - while (XEventsQueued (display, QueuedAlready)); + } + while (XEventsQueued (dpy, QueuedAlready)); - XFlush (display); -} - -void rxvt_display::flush () -{ - if (XEventsQueued (display, QueuedAlready)) - x_cb (x_ev, EVENT_READ); - - XFlush (display); + w.stop (); } void rxvt_display::reg (xevent_watcher *w) { - xw.push_back (w); - w->active = xw.size (); + if (!w->active) + { + xw.push_back (w); + w->active = xw.size (); + } } void rxvt_display::unreg (xevent_watcher *w) { if (w->active) - xw[w->active - 1] = 0; + { + xw[w->active - 1] = 0; + w->active = 0; + } } -void rxvt_display::set_selection_owner (rxvt_term *owner) +void rxvt_display::set_selection_owner (rxvt_term *owner, bool clipboard) { - if (selection_owner && selection_owner != owner) - selection_owner->selection_clear (); + rxvt_term * &cur_owner = !clipboard ? selection_owner : clipboard_owner; + + if (cur_owner && cur_owner != owner) + { + rxvt_term *term = cur_owner; + term->selection_clear (clipboard); + term->flush (); + } - selection_owner = owner; + cur_owner = owner; } #ifdef USE_XIM + void rxvt_display::reg (im_watcher *w) { imw.push_back (w); @@ -520,7 +645,7 @@ l = strlen (locale); m = strlen (modifiers); - if (!(id = (char *)malloc (l + m + 2))) + if (!(id = rxvt_temp_buf (l + m + 2))) return 0; memcpy (id, locale, l); id[l] = '\n'; @@ -528,22 +653,21 @@ rxvt_xim *xim = xims.get (id); - free (id); - return xim; } void rxvt_display::put_xim (rxvt_xim *xim) { -#if XLIB_IS_RACEFREE +# if XLIB_IS_RACEFREE xims.put (xim); -#endif +# endif } + #endif Atom rxvt_display::atom (const char *name) { - return XInternAtom (display, name, False); + return XInternAtom (dpy, name, False); } ///////////////////////////////////////////////////////////////////////////// @@ -552,72 +676,39 @@ refcache displays; ///////////////////////////////////////////////////////////////////////////// - -bool -rxvt_color::set (rxvt_screen *screen, const char *name) -{ -#if XFT - int l = strlen (name); - rxvt_rgba r; - char eos; - int mult; - - // shortcutting this saves countless server RTTs for the built-in colours - if (l == 3+3*3 && 3 == sscanf (name, "rgb:%hx/%hx/%hx/%hx%c", &r.r, &r.g, &r.b, &r.a, &eos)) - { - r.a = rxvt_rgba::MAX_CC; - mult = rxvt_rgba::MAX_CC / 0x00ff; - } - - // parse a number of non-standard ARGB colour specifications - else if ( l == 1+4*1 && 4 == sscanf (name, "#%1hx%1hx%1hx%1hx%c", &r.a, &r.r, &r.g, &r.b, &eos)) - mult = rxvt_rgba::MAX_CC / 0x000f; - else if (l == 1+4*2 && 4 == sscanf (name, "#%2hx%2hx%2hx%2hx%c", &r.a, &r.r, &r.g, &r.b, &eos)) - mult = rxvt_rgba::MAX_CC / 0x00ff; - else if (l == 1+4*4 && 4 == sscanf (name, "#%4hx%4hx%4hx%4hx%c", &r.a, &r.r, &r.g, &r.b, &eos)) - mult = rxvt_rgba::MAX_CC / 0xffff; - else if (l == 4+5*4 && 4 == sscanf (name, "rgba:%hx/%hx/%hx/%hx%c", &r.r, &r.g, &r.b, &r.a, &eos)) - mult = rxvt_rgba::MAX_CC / 0xffff; - - // slow case: server round trip - else - return XftColorAllocName (screen->xdisp, screen->visual, screen->cmap, name, &c); - - r.r *= mult; r.g *= mult; r.b *= mult; r.a *= mult; - - return set (screen, r); -#else - XColor xc; +// - if (XParseColor (screen->xdisp, screen->cmap, name, &xc)) - return set (screen, rxvt_rgba (xc.red, xc.green, xc.blue)); - - return false; -#endif +static unsigned int +insert_component (unsigned int value, unsigned int mask, unsigned int shift) +{ + return (value * (mask + 1) >> 16) << shift; } bool -rxvt_color::set (rxvt_screen *screen, rxvt_rgba rgba) +rxvt_color::alloc (rxvt_screen *screen, const rgba &color) { + //TODO: only supports 24 bit + int alpha = color.a >= 0xff00 ? 0xffff : color.a; + #if XFT XRenderPictFormat *format; - // FUCKING Xft gets it wrong, of course, so work around it - // transparency users should eat shit and die, and then + // FUCKING Xft gets it wrong, of course, so work around it. + // Transparency users should eat shit and die, and then // XRenderQueryPictIndexValues themselves plenty. - if (screen->visual->c_class == TrueColor - && (format = XRenderFindVisualFormat (screen->xdisp, screen->visual))) + if ((screen->visual->c_class == TrueColor) + && (format = XRenderFindVisualFormat (screen->dpy, screen->visual))) { // the fun lies in doing everything manually... - c.color.red = rgba.r; - c.color.green = rgba.g; - c.color.blue = rgba.b; - c.color.alpha = rgba.a; - - c.pixel = ((rgba.r * format->direct.redMask / rxvt_rgba::MAX_CC) << format->direct.red ) - | ((rgba.g * format->direct.greenMask / rxvt_rgba::MAX_CC) << format->direct.green) - | ((rgba.b * format->direct.blueMask / rxvt_rgba::MAX_CC) << format->direct.blue ) - | ((rgba.a * format->direct.alphaMask / rxvt_rgba::MAX_CC) << format->direct.alpha); + c.color.red = color.r; + c.color.green = color.g; + c.color.blue = color.b; + c.color.alpha = alpha; + + c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red ) + | insert_component (color.g, format->direct.greenMask, format->direct.green) + | insert_component (color.b, format->direct.blueMask , format->direct.blue ) + | insert_component (alpha , format->direct.alphaMask, format->direct.alpha); return true; } @@ -625,114 +716,440 @@ { XRenderColor d; - d.red = rgba.r; - d.green = rgba.g; - d.blue = rgba.b; - d.alpha = rgba.a; + d.red = color.r; + d.green = color.g; + d.blue = color.b; + d.alpha = alpha; - return XftColorAllocValue (screen->xdisp, screen->visual, screen->cmap, &d, &c); + return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c); } - - return false; #else + c.red = color.r; + c.green = color.g; + c.blue = color.b; + if (screen->visual->c_class == TrueColor) { - p = ((rgba.r * ((1 << screen->visual->bits_per_rgb) - 1) - / rxvt_rgba::MAX_CC) << ctz (screen->visual->red_mask )) - | ((rgba.g * ((1 << screen->visual->bits_per_rgb) - 1) - / rxvt_rgba::MAX_CC) << ctz (screen->visual->green_mask)) - | ((rgba.b * ((1 << screen->visual->bits_per_rgb) - 1) - / rxvt_rgba::MAX_CC) << ctz (screen->visual->blue_mask )); + c.pixel = (color.r >> (16 - rxvt_popcount (screen->visual->red_mask )) << rxvt_ctz (screen->visual->red_mask )) + | (color.g >> (16 - rxvt_popcount (screen->visual->green_mask)) << rxvt_ctz (screen->visual->green_mask)) + | (color.b >> (16 - rxvt_popcount (screen->visual->blue_mask )) << rxvt_ctz (screen->visual->blue_mask )); return true; } + else if (XAllocColor (screen->dpy, screen->cmap, &c)) + return true; else + c.pixel = (color.r + color.g + color.b) > 128*3 + ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy)) + : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy)); +#endif + + return false; +} + +bool +rxvt_color::set (rxvt_screen *screen, const char *name) +{ + rgba c; + char eos; + int skip; + + c.a = rgba::MAX_CC; + + // parse the nonstandard "[alphapercent]" prefix + if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip)) + { + c.a = lerp (0, rgba::MAX_CC, c.a); + name += skip; + } + + // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format + if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos)) { XColor xc; - xc.red = rgba.r; - xc.green = rgba.g; - xc.blue = rgba.b; - xc.flags = DoRed | DoGreen | DoBlue; - - if (XAllocColor (screen->xdisp, screen->cmap, &xc)) - { - p = xc.pixel; - return true; - } + if (XParseColor (screen->dpy, screen->cmap, name, &xc)) + { + c.r = xc.red; + c.g = xc.green; + c.b = xc.blue; + } + else + { + c.r = 0xffff; + c.g = 0x6969; + c.b = 0xb4b4; + + rxvt_warn ("unable to parse color '%s', using pink instead.\n", name); + } } - return false; + return set (screen, c); +} + +bool +rxvt_color::set (rxvt_screen *screen, const rgba &color) +{ + bool got = alloc (screen, color); + +#if !ENABLE_MINIMAL + int cmap_size = screen->visual->map_entries; + + if (!got + && screen->visual->c_class == PseudoColor + && cmap_size < 4096) + { + XColor *colors = new XColor [screen->visual->map_entries]; + + for (int i = 0; i < cmap_size; i++) + colors [i].pixel = i; + + // many kilobytes transfer per colour, but pseudocolor isn't worth + // many extra optimisations. + XQueryColors (screen->dpy, screen->cmap, colors, cmap_size); + + int diff = 0x7fffffffUL; + XColor *best = colors; + + for (int i = 0; i < cmap_size; i++) + { + int d = (squared_diff (color.r >> 2, colors [i].red >> 2)) + + (squared_diff (color.g >> 2, colors [i].green >> 2)) + + (squared_diff (color.b >> 2, colors [i].blue >> 2)); + + if (d < diff) + { + diff = d; + best = colors + i; + } + } + + //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n", + // color.r, color.g, color.b, best->red, best->green, best->blue, diff); + + got = alloc (screen, rgba (best->red, best->green, best->blue)); + + delete [] colors; + } #endif + + return got; } -void -rxvt_color::get (rxvt_screen *screen, rxvt_rgba &rgba) +void +rxvt_color::get (rgba &color) { #if XFT - rgba.r = c.color.red; - rgba.g = c.color.green; - rgba.b = c.color.blue; - rgba.a = c.color.alpha; + color.r = c.color.red; + color.g = c.color.green; + color.b = c.color.blue; + color.a = c.color.alpha; #else - XColor c; + color.r = c.red; + color.g = c.green; + color.b = c.blue; + color.a = rgba::MAX_CC; +#endif +} - c.pixel = p; - XQueryColor (screen->xdisp, screen->cmap, &c); +void +rxvt_color::get (XColor &color) +{ + rgba c; + get (c); - rgba.r = c.red; - rgba.g = c.green; - rgba.b = c.blue; - rgba.a = rxvt_rgba::MAX_CC; -#endif + color.red = c.r; + color.green = c.g; + color.blue = c.b; + color.pixel = (Pixel)*this; } -void +void rxvt_color::free (rxvt_screen *screen) { + if (screen->visual->c_class == TrueColor) + return; // nothing to do + #if XFT - XftColorFree (screen->xdisp, screen->visual, screen->cmap, &c); + XftColorFree (screen->dpy, screen->visual, screen->cmap, &c); #else - XFreeColors (screen->xdisp, screen->cmap, &p, 1, AllPlanes); + XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes); #endif } -rxvt_color -rxvt_color::fade (rxvt_screen *screen, int percent) +void +rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to) { - rxvt_color faded; + rgba c; + get (c); - rxvt_rgba c; - get (screen, c); + result.set ( + screen, + rgba ( + lerp (c.r, to.r, percent), + lerp (c.g, to.g, percent), + lerp (c.b, to.b, percent), + lerp (c.a, to.a, percent) + ) + ); +} - c.r = lerp (0, c.r, percent); - c.g = lerp (0, c.g, percent); - c.b = lerp (0, c.b, percent); +rxvt_selection::rxvt_selection (rxvt_display *disp, int selnum, Time tm, Window win, Atom prop, sel_cb cb, void *ptr) +: display (disp), request_time (tm), request_win (win), request_prop (prop), request_cb (cb), user_data (ptr) +{ + assert (selnum >= Sel_Primary && selnum <= Sel_Clipboard); - faded.set (screen, c); + timer_ev.set (this); + timer_ev.repeat = 10.; + x_ev.set (this); + + incr_buf = 0; + incr_buf_size = incr_buf_fill = 0; + selection_wait = Sel_normal; + selection_type = selnum; +} - return faded; +void +rxvt_selection::run () +{ + int selnum = selection_type; + +#if X_HAVE_UTF8_STRING + selection_type = Sel_UTF8String; + if (request (display->xa[XA_UTF8_STRING], selnum)) + return; +#else + selection_type = Sel_CompoundText; + if (request (display->xa[XA_COMPOUND_TEXT], selnum)) + return; +#endif + + // fallback to CUT_BUFFER0 if the requested property has no owner + handle_selection (display->root, XA_CUT_BUFFER0, false); } -rxvt_color -rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &fadeto) +rxvt_selection::~rxvt_selection () { - rxvt_rgba c, fc; - rxvt_color faded; - - get (screen, c); - fadeto.get (screen, fc); + stop (); +} - faded.set ( - screen, - rxvt_rgba ( - lerp (fc.r, c.r, percent), - lerp (fc.g, c.g, percent), - lerp (fc.b, c.b, percent), - lerp (fc.a, c.a, percent) - ) - ); +void +rxvt_selection::stop () +{ + free (incr_buf); + incr_buf = 0; + timer_ev.stop (); + x_ev.stop (display); +} + +bool +rxvt_selection::request (Atom target, int selnum) +{ + Atom sel; - return faded; + selection_type |= selnum; + + if (selnum == Sel_Primary) + sel = XA_PRIMARY; + else if (selnum == Sel_Secondary) + sel = XA_SECONDARY; + else + sel = display->xa[XA_CLIPBOARD]; + + if (XGetSelectionOwner (display->dpy, sel) != None) + { + XConvertSelection (display->dpy, sel, target, request_prop, + request_win, request_time); + x_ev.start (display, request_win); + timer_ev.again (); + return true; + } + + return false; } +void +rxvt_selection::handle_selection (Window win, Atom prop, bool delete_prop) +{ + Display *dpy = display->dpy; + char *data = 0; + unsigned int data_len = 0; + unsigned long bytes_after; + XTextProperty ct; + + // check for failed XConvertSelection + if (prop == None) + { + bool error = true; + int selnum = selection_type & Sel_whereMask; + + if (selection_type & Sel_CompoundText) + { + selection_type = 0; + error = !request (XA_STRING, selnum); + } + + if (selection_type & Sel_UTF8String) + { + selection_type = Sel_CompoundText; + error = !request (display->xa[XA_COMPOUND_TEXT], selnum); + } + + if (error) + { + ct.value = 0; + goto bailout; + } + + return; + } + + // length == (2^31 - 1) / 4, as gdk + if (XGetWindowProperty (dpy, win, prop, + 0, 0x1fffffff, + delete_prop, AnyPropertyType, + &ct.encoding, &ct.format, + &ct.nitems, &bytes_after, + &ct.value) != Success) + { + ct.value = 0; + goto bailout; + } + + if (ct.encoding == None) + goto bailout; + + if (ct.value == 0) + goto bailout; + + if (ct.encoding == display->xa[XA_INCR]) + { + // INCR selection, start handshake + if (!delete_prop) + XDeleteProperty (dpy, win, prop); + + selection_wait = Sel_incr; + timer_ev.again (); + + goto bailout; + } + + if (ct.nitems == 0) + { + if (selection_wait == Sel_incr) + { + XFree (ct.value); + + // finally complete, now paste the whole thing + selection_wait = Sel_normal; + ct.value = (unsigned char *)incr_buf; + ct.nitems = incr_buf_fill; + incr_buf = 0; + timer_ev.stop (); + } + else + { + // avoid recursion + if (win != display->root || prop != XA_CUT_BUFFER0) + { + XFree (ct.value); + + // fallback to CUT_BUFFER0 if the requested property + // has an owner but is empty + handle_selection (display->root, XA_CUT_BUFFER0, False); + return; + } + + goto bailout; + } + } + else if (selection_wait == Sel_incr) + { + timer_ev.again (); + + while (incr_buf_fill + ct.nitems > incr_buf_size) + { + incr_buf_size = incr_buf_size ? incr_buf_size * 2 : 128*1024; + incr_buf = (char *)rxvt_realloc (incr_buf, incr_buf_size); + } + + memcpy (incr_buf + incr_buf_fill, ct.value, ct.nitems); + incr_buf_fill += ct.nitems; + + goto bailout; + } + + char **cl; + int cr; + + // we honour the first item only + +#if !ENABLE_MINIMAL + // xlib is horribly broken with respect to UTF8_STRING, and nobody cares to fix it + // so recode it manually + if (ct.encoding == display->xa[XA_UTF8_STRING]) + { + wchar_t *w = rxvt_utf8towcs ((const char *)ct.value, ct.nitems); + data = rxvt_wcstombs (w); + free (w); + } + else +#endif + if (XmbTextPropertyToTextList (dpy, &ct, &cl, &cr) >= 0 + && cl) + { + data = strdup (cl[0]); + XFreeStringList (cl); + } + else + { + // paste raw + data = strdup ((const char *)ct.value); + } + + data_len = strlen (data); + +bailout: + XFree (ct.value); + + if (selection_wait == Sel_normal) + { + stop (); + request_cb (data, data_len, this, user_data); + free (data); + } +} + +void +rxvt_selection::timer_cb (ev::timer &w, int revents) +{ + if (selection_wait == Sel_incr) + rxvt_warn ("data loss: timeout on INCR selection paste, ignoring.\n"); + + stop (); + request_cb (NULL, 0, this, user_data); +} + +void +rxvt_selection::x_cb (XEvent &xev) +{ + switch (xev.type) + { + case PropertyNotify: + if (selection_wait == Sel_incr + && xev.xproperty.atom == request_prop + && xev.xproperty.state == PropertyNewValue) + handle_selection (xev.xproperty.window, xev.xproperty.atom, true); + break; + + case SelectionNotify: + if (selection_wait == Sel_normal + && xev.xselection.time == request_time + && xev.xselection.property == request_prop) + { + timer_ev.stop (); + handle_selection (xev.xselection.requestor, xev.xselection.property, true); + } + break; + } +}