PangoCairoFontMap for win32 fonts.

2005-02-24  Owen Taylor  <otaylor@redhat.com>

	* pango/pangocairo-win32.h pango/pangocairo-win32font.c
	pango/pangocairo-win32fontmap.c	pango/Makefile.am:
	PangoCairoFontMap for win32 fonts.

	* pango/pangocairo-fontmap.c: Use PangoCairoWin32FontMap
	when available.

	* pango/pangowin32.h pango/pangowin32-fontmap.h pango/pangowin32.c:
	Add virtual pango_win32_font_select_font()
	to prepare a DC for use with a PangoWin32Font, and to release,
	pango_win32_font_scale_font() to get logical unit => Pango units scale,
	pango_win32_font_done_font() to release resources.

	* pango/pangowin32-fontmap.[ch]: Add a find_font() virtual method
	to allow subclasses that change how PangoFont lookup and
	creation happens.

	* pango/pangowin32-fontmap.c: Move initialization into
	pango_win32_font_map_init() to facilitate derivation.

	* pango/pangowin2.c pango/pangowin32-fontmap.c
	pango/pangowin32-private.h: Move PangoWin32Font/PangoWin32FontMap
	definitions into pangowin32-private.h to allow derivation for
	PangoCairoWin32Font.

	* modules/basic/basic-win32.c: Use pango_win32_font_select_font()
	and friends.

	* modules/basic/basic-win32.c: Use g_utf8_to_utf16 instead
	of g_convert for simplicity and speed.

	* pango/fonts.c (pango_font_get_font_map) pango/pango-font.h
	pango/pangofc-font.c pango/pangowin32.c pango/pango.c pango/pango.def
	docs/pango-sections.txt: Add a virtual function to get the fontmap
	for a font.

	* pango/pangocairo-render.c: Use pango_font_get_font_map()
	rather than PangoFcFontMap hack.

	* pango/pango-types.h: Move the declaration of PangoFontMap here
	to avoid interactions between pango-font.h and pango-fontmap.h.

	* pango/pangocairo.h: Remove accidental include
	of pangofc-fontmap.h.

1 files changed, 108 insertions, 0 deletions

diff --git a/pango/pangocairo-win32fontmap.c b/pango/pangocairo-win32fontmap.c
new file mode 100644
index 00000000..51393efa
--- /dev/null
+++ b/pango/pangocairo-win32fontmap.c
@@ -0,0 +1,108 @@
+/* Pango
+ * pangocairo-win32fontmap.c: Cairo font handling, Win32 backend
+ *
+ * Copyright (C) 2000-2005 Red Hat Software
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "pangowin32-private.h"
+#include "pangocairo.h"
+#include "pangocairo-private.h"
+#include "pangocairo-win32.h"
+
+typedef struct _PangoCairoWin32FontMapClass PangoCairoWin32FontMapClass;
+
+struct _PangoCairoWin32FontMapClass
+{
+  PangoWin32FontMapClass parent_class;
+};
+
+static void
+pango_cairo_win32_font_map_set_resolution (PangoCairoFontMap *cfontmap,
+					   double             dpi)
+{
+  PangoCairoWin32FontMap *cwfontmap = PANGO_CAIRO_WIN32_FONT_MAP (cfontmap);
+  
+  cwfontmap->dpi = dpi;
+}
+
+static double
+pango_cairo_win32_font_map_get_resolution (PangoCairoFontMap *cfontmap)
+{
+  PangoCairoWin32FontMap *cwfontmap = PANGO_CAIRO_WIN32_FONT_MAP (cfontmap);
+
+  return cwfontmap->dpi;
+}
+
+static PangoRenderer *
+pango_cairo_win32_font_map_get_renderer (PangoCairoFontMap *cfontmap)
+{
+  PangoCairoWin32FontMap *cwfontmap = PANGO_CAIRO_WIN32_FONT_MAP (cfontmap);
+  
+  if (!cwfontmap->renderer)
+    cwfontmap->renderer = g_object_new (PANGO_TYPE_CAIRO_RENDERER, NULL);
+
+  return cwfontmap->renderer;
+}
+
+static void
+cairo_font_map_iface_init (PangoCairoFontMapIface *iface)
+{
+  iface->set_resolution = pango_cairo_win32_font_map_set_resolution;
+  iface->get_resolution = pango_cairo_win32_font_map_get_resolution;
+  iface->get_renderer = pango_cairo_win32_font_map_get_renderer;
+}
+
+G_DEFINE_TYPE_WITH_CODE (PangoCairoWin32FontMap, pango_cairo_win32_font_map, PANGO_TYPE_WIN32_FONT_MAP,
+    { G_IMPLEMENT_INTERFACE (PANGO_TYPE_CAIRO_FONT_MAP, cairo_font_map_iface_init) });
+
+static void
+pango_cairo_win32_font_map_finalize (GObject *object)
+{
+  PangoCairoWin32FontMap *cwfontmap = PANGO_CAIRO_WIN32_FONT_MAP (object);
+  
+  if (cwfontmap->renderer)
+    g_object_unref (cwfontmap->renderer);
+
+  G_OBJECT_CLASS (pango_cairo_win32_font_map_parent_class)->finalize (object);
+}
+
+static PangoFont *
+pango_cairo_win32_font_map_find_font (PangoWin32FontMap          *fontmap,
+				      PangoContext               *context,
+				      PangoWin32Face             *face,
+				      const PangoFontDescription *desc)
+{
+  return _pango_cairo_win32_font_new (PANGO_CAIRO_WIN32_FONT_MAP (fontmap),
+				      context, face, desc);
+}
+
+static void
+pango_cairo_win32_font_map_class_init (PangoCairoWin32FontMapClass *class)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (class);
+  PangoWin32FontMapClass *win32fontmap_class = PANGO_WIN32_FONT_MAP_CLASS (class);
+
+  gobject_class->finalize  = pango_cairo_win32_font_map_finalize;
+  win32fontmap_class->find_font = pango_cairo_win32_font_map_find_font;
+}
+
+static void
+pango_cairo_win32_font_map_init (PangoCairoWin32FontMap *cwfontmap)
+{
+  cwfontmap->dpi   = 96.0;
+}