1 /* GDK - The GIMP Drawing Kit
2 * Copyright © 2005 Red Hat, Inc
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
19 * Based on code from xftdpy.c
21 * Copyright © 2000 Keith Packard
23 * Permission to use, copy, modify, distribute, and sell this software and its
24 * documentation for any purpose is hereby granted without fee, provided that
25 * the above copyright notice appear in all copies and that both that
26 * copyright notice and this permission notice appear in supporting
27 * documentation, and that the name of Keith Packard not be used in
28 * advertising or publicity pertaining to distribution of the software without
29 * specific, written prior permission. Keith Packard makes no
30 * representations about the suitability of this software for any purpose. It
31 * is provided "as is" without express or implied warranty.
33 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
34 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
35 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
36 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
37 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
38 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
39 * PERFORMANCE OF THIS SOFTWARE.
44 #include <fontconfig/fontconfig.h>
47 #define FC_HINT_NONE 0
48 #define FC_HINT_SLIGHT 1
49 #define FC_HINT_MEDIUM 2
50 #define FC_HINT_FULL 3
53 #include <gdkscreen-x11.h>
57 parse_boolean (char *v)
62 if (g_ascii_isupper ((int)c0))
63 c0 = g_ascii_tolower (c0);
64 if (c0 == 't' || c0 == 'y' || c0 == '1')
66 if (c0 == 'f' || c0 == 'n' || c0 == '0')
71 if (g_ascii_isupper ((int)c1))
72 c1 = g_ascii_tolower (c1);
83 get_boolean_default (Display *dpy,
90 v = XGetDefault (dpy, "Xft", option);
93 i = parse_boolean (v);
105 get_double_default (Display *dpy,
111 v = XGetDefault (dpy, "Xft", option);
114 /* Xft uses strtod, though localization probably wasn't
115 * desired. For compatibility, we use the conservative
116 * g_strtod() that accepts either localized or non-localized
119 *value = g_strtod (v, &e);
128 get_integer_default (Display *dpy,
135 v = XGetDefault (dpy, "Xft", option);
138 if (FcNameConstant ((FcChar8 *) v, value))
141 i = strtol (v, &e, 0);
150 init_xft_settings (GdkScreen *screen)
152 GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
153 Display *xdisplay = GDK_SCREEN_XDISPLAY (screen);
154 int xscreen = GDK_SCREEN_XNUMBER (screen);
157 if (screen_x11->xft_init)
160 screen_x11->xft_init = TRUE;
162 if (!get_boolean_default (xdisplay, "antialias", &screen_x11->xft_antialias))
163 screen_x11->xft_antialias = TRUE;
165 if (!get_boolean_default (xdisplay, "hinting", &screen_x11->xft_hinting))
166 screen_x11->xft_hinting = TRUE;
168 if (!get_integer_default (xdisplay, "hintstyle", &screen_x11->xft_hintstyle))
169 screen_x11->xft_hintstyle = FC_HINT_FULL;
171 if (!get_integer_default (xdisplay, "rgba", &screen_x11->xft_rgba))
174 int subpixel = FC_RGBA_UNKNOWN;
176 #if RENDER_MAJOR > 0 || RENDER_MINOR >= 6
177 if (_gdk_x11_have_render (screen_x11->display))
179 int render_order = XRenderQuerySubpixelOrder (xdisplay, xscreen);
181 switch (render_order)
184 case SubPixelUnknown:
185 subpixel = FC_RGBA_UNKNOWN;
187 case SubPixelHorizontalRGB:
188 subpixel = FC_RGBA_RGB;
190 case SubPixelHorizontalBGR:
191 subpixel = FC_RGBA_BGR;
193 case SubPixelVerticalRGB:
194 subpixel = FC_RGBA_VRGB;
196 case SubPixelVerticalBGR:
197 subpixel = FC_RGBA_VBGR;
200 subpixel = FC_RGBA_NONE;
205 screen_x11->xft_rgba = subpixel;
209 if (!get_double_default (xdisplay, "dpi", &dpi_double))
210 dpi_double = (((double) DisplayHeight (xdisplay, xscreen) * 25.4) /
211 (double) DisplayHeightMM (xdisplay, xscreen));
213 screen_x11->xft_dpi = (int)(0.5 + PANGO_SCALE * dpi_double);
217 _gdk_x11_get_xft_setting (GdkScreen *screen,
221 GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
223 if (strncmp (name, "gtk-xft-", 8) != 0)
228 init_xft_settings (screen);
230 if (strcmp (name, "antialias") == 0)
232 g_value_set_int (value, screen_x11->xft_antialias);
235 else if (strcmp (name, "hinting") == 0)
237 g_value_set_int (value, screen_x11->xft_hinting);
240 else if (strcmp (name, "hintstyle") == 0)
244 switch (screen_x11->xft_hintstyle)
262 g_value_set_string (value, str);
265 else if (strcmp (name, "rgba") == 0)
269 switch (screen_x11->xft_rgba)
286 case FC_RGBA_UNKNOWN:
291 g_value_set_string (value, str);
294 else if (strcmp (name, "dpi") == 0)
296 g_value_set_int (value, screen_x11->xft_dpi);