forked from AuroraMiddleware/gtk
90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 2000 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <config.h>
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#include <stdlib.h>
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#include "gdkx.h"
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#include "gdkdisplay-x11.h"
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#include "gdkpango.h"
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#include <pango/pangox.h>
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#ifdef HAVE_XFT
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#include <pango/pangoxft.h>
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#endif
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/**
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* gdk_pango_context_get_for_screen:
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* @screen: the #GdkScreen for which the context is to be created.
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*
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* Creates a #PangoContext for @screen.
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*
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* The context must be freed when you're finished with it.
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*
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* When using GTK+, normally you should use gtk_widget_get_pango_context()
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* instead of this function, to get the appropriate context for
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* the widget you intend to render text onto.
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*
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* Return value: a new #PangoContext for @screen
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*
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* Since: 2.2
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**/
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PangoContext *
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gdk_pango_context_get_for_screen (GdkScreen *screen)
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{
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PangoContext *context;
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GdkDisplayX11 *display_x11;
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g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
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if (screen->closed)
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return NULL;
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display_x11 = GDK_DISPLAY_X11 (GDK_SCREEN_DISPLAY (screen));
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#ifdef HAVE_XFT
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if (display_x11->use_xft == -1)
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{
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const char *val = g_getenv ("GDK_USE_XFT");
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/* Version 2 of Xft supports rendering FreeType fonts via
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* the core X protocol, so we default to it everywhere.
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*
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* For Xft1, we only enable Xft if the user explicitely
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* specifies it, and we have the RENDER extension
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*/
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# ifdef HAVE_XFT2
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display_x11->use_xft = !val || (atoi (val) != 0);
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# else
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display_x11->use_xft = val && (atoi (val) != 0) &&
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_gdk_x11_have_render (GDK_SCREEN_DISPLAY (screen));
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# endif /* HAVE_XFT2 */
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}
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if (display_x11->use_xft)
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context = pango_xft_get_context (GDK_SCREEN_XDISPLAY (screen),
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GDK_SCREEN_X11 (screen)->screen_num);
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else
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#endif /* HAVE_XFT */
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context = pango_x_get_context (GDK_SCREEN_XDISPLAY (screen));
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g_object_set_data (G_OBJECT (context), "gdk-pango-screen", screen);
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return context;
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}
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