forked from AuroraMiddleware/gtk
a3be0ec5f0
This adds a GDK_DEBUG=default-settings flag which disables reads from xsettings and Xft resources, and enables this for the testsuite. This is one less way to get different testresults depending on the environment. In particular, it was failing the css tests for me due to getting the wrong font size because i have a different dpi.
276 lines
6.5 KiB
C
276 lines
6.5 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright © 2005 Red Hat, Inc
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Based on code from xftdpy.c
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*
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* Copyright © 2000 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <string.h>
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#include <fontconfig/fontconfig.h>
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#ifndef FC_HINT_STYLE
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#define FC_HINT_NONE 0
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#define FC_HINT_SLIGHT 1
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#define FC_HINT_MEDIUM 2
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#define FC_HINT_FULL 3
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#endif
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#include <gdkscreen-x11.h>
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#include <gdkprivate-x11.h>
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static gint
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parse_boolean (char *v)
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{
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gchar c0, c1;
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c0 = *v;
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if (g_ascii_isupper ((int)c0))
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c0 = g_ascii_tolower (c0);
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if (c0 == 't' || c0 == 'y' || c0 == '1')
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return 1;
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if (c0 == 'f' || c0 == 'n' || c0 == '0')
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return 0;
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if (c0 == 'o')
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{
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c1 = v[1];
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if (g_ascii_isupper ((int)c1))
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c1 = g_ascii_tolower (c1);
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if (c1 == 'n')
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return 1;
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if (c1 == 'f')
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return 0;
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}
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return -1;
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}
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static gboolean
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get_boolean_default (GdkX11Screen *x11_screen,
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const gchar *option,
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gboolean *value)
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{
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Display *dpy = GDK_SCREEN_XDISPLAY (x11_screen);
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gchar *v;
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gint i;
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if (GDK_DISPLAY_DEBUG_CHECK (GDK_SCREEN_DISPLAY (x11_screen), DEFAULT_SETTINGS))
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return FALSE;
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v = XGetDefault (dpy, "Xft", option);
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if (v)
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{
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i = parse_boolean (v);
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if (i >= 0)
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{
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*value = i;
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return TRUE;
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}
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}
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return FALSE;
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}
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static gboolean
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get_double_default (GdkX11Screen *x11_screen,
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const gchar *option,
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gdouble *value)
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{
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Display *dpy = GDK_SCREEN_XDISPLAY (x11_screen);
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gchar *v, *e;
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if (GDK_DISPLAY_DEBUG_CHECK (GDK_SCREEN_DISPLAY (x11_screen), DEFAULT_SETTINGS))
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return FALSE;
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v = XGetDefault (dpy, "Xft", option);
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if (v)
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{
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/* Xft uses strtod, though localization probably wasn't
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* desired. For compatibility, we use the conservative
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* g_strtod() that accepts either localized or non-localized
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* decimal separator.
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*/
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*value = g_strtod (v, &e);
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if (e != v)
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return TRUE;
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}
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return FALSE;
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}
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static gboolean
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get_integer_default (GdkX11Screen *x11_screen,
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const gchar *option,
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gint *value)
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{
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Display *dpy = GDK_SCREEN_XDISPLAY (x11_screen);
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gchar *v, *e;
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if (GDK_DISPLAY_DEBUG_CHECK (GDK_SCREEN_DISPLAY (x11_screen), DEFAULT_SETTINGS))
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return FALSE;
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v = XGetDefault (dpy, "Xft", option);
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if (v)
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{
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if (FcNameConstant ((FcChar8 *) v, value))
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return TRUE;
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*value = strtol (v, &e, 0);
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if (e != v)
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return TRUE;
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}
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return FALSE;
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}
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static void
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init_xft_settings (GdkX11Screen *x11_screen)
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{
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double dpi_double;
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gboolean b;
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if (x11_screen->xft_init)
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return;
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x11_screen->xft_init = TRUE;
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if (!get_boolean_default (x11_screen, "antialias", &b))
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b = TRUE;
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x11_screen->xft_antialias = b;
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if (!get_boolean_default (x11_screen, "hinting", &b))
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b = TRUE;
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x11_screen->xft_hinting = b;
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if (!get_integer_default (x11_screen, "hintstyle", &x11_screen->xft_hintstyle))
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x11_screen->xft_hintstyle = FC_HINT_MEDIUM;
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if (!get_integer_default (x11_screen, "rgba", &x11_screen->xft_rgba))
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x11_screen->xft_rgba = FC_RGBA_UNKNOWN;
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if (!get_double_default (x11_screen, "dpi", &dpi_double))
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dpi_double = 96.0;
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x11_screen->xft_dpi = (int)(0.5 + PANGO_SCALE * dpi_double);
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}
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gboolean
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_gdk_x11_screen_get_xft_setting (GdkX11Screen *x11_screen,
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const char *name,
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GValue *value)
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{
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if (strncmp (name, "gtk-xft-", 8) != 0)
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return FALSE;
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name += 8;
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init_xft_settings (x11_screen);
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if (strcmp (name, "antialias") == 0)
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{
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g_value_set_int (value, x11_screen->xft_antialias);
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return TRUE;
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}
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else if (strcmp (name, "hinting") == 0)
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{
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g_value_set_int (value, x11_screen->xft_hinting);
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return TRUE;
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}
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else if (strcmp (name, "hintstyle") == 0)
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{
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const char *str;
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switch (x11_screen->xft_hintstyle)
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{
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case FC_HINT_NONE:
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str = "hintnone";
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break;
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case FC_HINT_SLIGHT:
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str = "hintslight";
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break;
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case FC_HINT_MEDIUM:
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str = "hintmedium";
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break;
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case FC_HINT_FULL:
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str = "hintfull";
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break;
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default:
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return FALSE;
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}
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g_value_set_string (value, str);
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return TRUE;
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}
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else if (strcmp (name, "rgba") == 0)
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{
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const char *str;
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switch (x11_screen->xft_rgba)
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{
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case FC_RGBA_NONE:
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str = "none";
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break;
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case FC_RGBA_RGB:
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str = "rgb";
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break;
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case FC_RGBA_BGR:
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str = "bgr";
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break;
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case FC_RGBA_VRGB:
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str = "vrgb";
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break;
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case FC_RGBA_VBGR:
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str = "vbgr";
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break;
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case FC_RGBA_UNKNOWN:
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default:
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return FALSE;
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}
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g_value_set_string (value, str);
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return TRUE;
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}
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else if (strcmp (name, "dpi") == 0)
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{
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g_value_set_int (value, x11_screen->xft_dpi);
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return TRUE;
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}
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return FALSE;
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}
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