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thunderbird/mozilla-1.7.3-pango-render.patch
blizzard 95d655caef - Update the pango patch
2004-10-19 03:33:04 +00:00

3086 lines
99 KiB
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--- mozilla/config/autoconf.mk.in.foo 2004-03-20 21:31:17.000000000 -0500
+++ mozilla/config/autoconf.mk.in 2004-10-18 22:49:40.000000000 -0400
@@ -376,6 +376,10 @@
MOZ_XFT_LIBS = @MOZ_XFT_LIBS@
MOZ_ENABLE_COREXFONTS = @MOZ_ENABLE_COREXFONTS@
+MOZ_ENABLE_PANGO = @MOZ_ENABLE_PANGO@
+MOZ_PANGO_CFLAGS = @MOZ_PANGO_CFLAGS@
+MOZ_PANGO_LIBS = @MOZ_PANGO_LIBS@
+
MOZ_EXTRA_X11CONVERTERS = @MOZ_EXTRA_X11CONVERTERS@
MOZ_ENABLE_XINERAMA = @MOZ_ENABLE_XINERAMA@
--- mozilla/gfx/src/gtk/nsGfxFactoryGTK.cpp.foo 2003-09-07 18:20:38.000000000 -0400
+++ mozilla/gfx/src/gtk/nsGfxFactoryGTK.cpp 2004-10-18 22:49:40.000000000 -0400
@@ -62,6 +62,9 @@
#ifdef NATIVE_THEME_SUPPORT
#include "nsNativeThemeGTK.h"
#endif
+#ifdef MOZ_ENABLE_PANGO
+#include "nsFontMetricsPango.h"
+#endif
#ifdef MOZ_ENABLE_XFT
#include "nsFontMetricsXft.h"
#endif
@@ -112,6 +115,13 @@
if (aOuter)
return NS_ERROR_NO_AGGREGATION;
+#ifdef MOZ_ENABLE_PANGO
+ if (NS_IsPangoEnabled()) {
+ result = new nsFontMetricsPango();
+ if (!result)
+ return NS_ERROR_OUT_OF_MEMORY;
+ } else {
+#endif
#ifdef MOZ_ENABLE_XFT
if (NS_IsXftEnabled()) {
result = new nsFontMetricsXft();
@@ -127,6 +137,9 @@
#ifdef MOZ_ENABLE_XFT
}
#endif
+#ifdef MOZ_ENABLE_PANGO
+ }
+#endif
NS_ADDREF(result);
nsresult rv = result->QueryInterface(aIID, aResult);
@@ -148,6 +161,13 @@
if (aOuter)
return NS_ERROR_NO_AGGREGATION;
+#ifdef MOZ_ENABLE_PANGO
+ if (NS_IsPangoEnabled()) {
+ result = new nsFontEnumeratorPango();
+ if (!result)
+ return NS_ERROR_OUT_OF_MEMORY;
+ } else {
+#endif
#ifdef MOZ_ENABLE_XFT
if (NS_IsXftEnabled()) {
result = new nsFontEnumeratorXft();
@@ -163,6 +183,9 @@
#ifdef MOZ_ENABLE_XFT
}
#endif
+#ifdef MOZ_ENABLE_PANGO
+ }
+#endif
NS_ADDREF(result);
nsresult rv = result->QueryInterface(aIID, aResult);
--- /dev/null 2004-02-18 10:26:44.000000000 -0500
+++ mozilla/gfx/src/gtk/mozilla-decoder.h 2004-10-18 22:49:40.000000000 -0400
@@ -0,0 +1,72 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:expandtab:shiftwidth=4:tabstop=4:
+ */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Christopher Blizzard
+ * <blizzard@mozilla.org>. Portions created by the Initial Developer
+ * are Copyright (C) 2004 the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef _MOZILLA_DECODER_H
+#define _MOZILLA_DECODER_H
+
+#include <pango/pangofc-decoder.h>
+
+G_BEGIN_DECLS
+
+#define MOZILLA_TYPE_DECODER (mozilla_decoder_get_type())
+#define MOZILLA_DECODER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), MOZILLA_TYPE_DECODER, MozillaDecoder))
+#define MOZILLA_IS_DECODER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), MOZILLA_TYPE_DECODER))
+
+typedef struct _MozillaDecoder MozillaDecoder;
+typedef struct _MozillaDecoderClass MozillaDecoderClass;
+
+#define MOZILLA_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), MOZILLA_TYPE_DECODER, MozillaDecoderClass))
+#define MOZILLA_IS_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), MOZILLA_TYPE_DECODER))
+#define MOZILLA_DECODER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), MOZILLA_TYPE_DECODER, MozillaDecoderClass))
+
+struct _MozillaDecoder
+{
+ PangoFcDecoder parent_instance;
+};
+
+struct _MozillaDecoderClass
+{
+ PangoFcDecoderClass parent_class;
+};
+
+GType mozilla_decoder_get_type (void);
+int mozilla_decoders_init (void);
+
+G_END_DECLS
+
+#endif /*_MOZILLA_DECODER_H */
--- /dev/null 2004-02-18 10:26:44.000000000 -0500
+++ mozilla/gfx/src/gtk/mozilla-decoder.cpp 2004-10-18 22:49:40.000000000 -0400
@@ -0,0 +1,376 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:expandtab:shiftwidth=4:tabstop=4:
+ */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Christopher Blizzard
+ * <blizzard@mozilla.org>. Portions created by the Initial Developer
+ * are Copyright (C) 2004 the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#define PANGO_ENABLE_BACKEND
+#define PANGO_ENABLE_ENGINE
+
+#include "mozilla-decoder.h"
+#include <pango/pangoxft.h>
+#include <pango/pangofc-fontmap.h>
+#include <pango/pangofc-font.h>
+#include <gdk/gdkx.h>
+
+#include "nsString.h"
+#include "nsIPersistentProperties2.h"
+#include "nsNetUtil.h"
+#include "nsReadableUtils.h"
+#include "nsICharsetConverterManager.h"
+#include "nsICharRepresentable.h"
+#include "nsCompressedCharMap.h"
+
+#undef DEBUG_CUSTOM_ENCODER
+
+G_DEFINE_TYPE (MozillaDecoder, mozilla_decoder, PANGO_TYPE_FC_DECODER)
+
+MozillaDecoder *mozilla_decoder_new (void);
+
+static FcCharSet *mozilla_decoder_get_charset (PangoFcDecoder *decoder,
+ PangoFcFont *fcfont);
+static PangoGlyph mozilla_decoder_get_glyph (PangoFcDecoder *decoder,
+ PangoFcFont *fcfont,
+ guint32 wc);
+
+static PangoFcDecoder *mozilla_find_decoder (FcPattern *pattern,
+ gpointer user_data);
+
+typedef struct _MozillaDecoderPrivate MozillaDecoderPrivate;
+
+#define MOZILLA_DECODER_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), MOZILLA_TYPE_DECODER, MozillaDecoderPrivate))
+
+struct _MozillaDecoderPrivate {
+ char *family;
+ char *encoder;
+ char *cmap;
+ gboolean is_wide;
+ FcCharSet *charset;
+ nsCOMPtr<nsIUnicodeEncoder> uEncoder;
+};
+
+static nsICharsetConverterManager *gCharsetManager = NULL;
+
+static NS_DEFINE_CID(kCharsetConverterManagerCID,
+ NS_ICHARSETCONVERTERMANAGER_CID);
+
+// Hash tables that hold the custom encodings and custom cmaps used in
+// various fonts.
+GHashTable *encoder_hash = NULL;
+GHashTable *cmap_hash = NULL;
+GHashTable *wide_hash = NULL;
+
+void
+mozilla_decoder_init (MozillaDecoder *decoder)
+{
+}
+
+void
+mozilla_decoder_class_init (MozillaDecoderClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS(klass);
+ PangoFcDecoderClass *parent_class = PANGO_FC_DECODER_CLASS (klass);
+
+ /* object_class->finalize = test_finalize; */
+
+ parent_class->get_charset = mozilla_decoder_get_charset;
+ parent_class->get_glyph = mozilla_decoder_get_glyph;
+
+ g_type_class_add_private (object_class, sizeof (MozillaDecoderPrivate));
+}
+
+MozillaDecoder *
+mozilla_decoder_new(void)
+{
+ return (MozillaDecoder *)g_object_new(MOZILLA_TYPE_DECODER, NULL);
+}
+
+#ifdef DEBUG_CUSTOM_ENCODER
+void
+dump_hash(char *key, char *val, void *arg)
+{
+ printf("%s -> %s\n", key, val);
+}
+#endif
+
+/**
+ * mozilla_decoders_init:
+ *
+ * #mozilla_decoders_init:
+ *
+ * This initializes all of the application-specific custom decoders
+ * that Mozilla uses. This should only be called once during the
+ * lifetime of the application.
+ *
+ * Return value: zero on success, not zero on failure.
+ *
+ **/
+
+int
+mozilla_decoders_init(void)
+{
+ static PRBool initialized = PR_FALSE;
+ if (initialized)
+ return 0;
+
+ encoder_hash = g_hash_table_new(g_str_hash, g_str_equal);
+ cmap_hash = g_hash_table_new(g_str_hash, g_str_equal);
+ wide_hash = g_hash_table_new(g_str_hash, g_str_equal);
+
+ PRBool dumb = PR_FALSE;
+ nsCOMPtr<nsIPersistentProperties> props;
+ nsCOMPtr<nsISimpleEnumerator> encodeEnum;
+
+ NS_LoadPersistentPropertiesFromURISpec(getter_AddRefs(props),
+ NS_LITERAL_CSTRING("resource://gre/res/fonts/pangoFontEncoding.properties"));
+
+ if (!props)
+ goto loser;
+
+ // Enumerate the properties in this file and figure out all of the
+ // fonts for which we have custom encodings.
+ props->Enumerate(getter_AddRefs(encodeEnum));
+ if (!encodeEnum)
+ goto loser;
+
+ while (encodeEnum->HasMoreElements(&dumb), dumb) {
+ nsCOMPtr<nsIPropertyElement> prop;
+ encodeEnum->GetNext(getter_AddRefs(prop));
+ if (!prop)
+ goto loser;
+
+ nsCAutoString name;
+ prop->GetKey(name);
+ nsAutoString value;
+ prop->GetValue(value);
+
+ if (!StringBeginsWith(name, NS_LITERAL_CSTRING("encoding."))) {
+ printf("string doesn't begin with encoding?\n");
+ continue;
+ }
+
+ name = Substring(name, 9);
+
+ if (StringEndsWith(name, NS_LITERAL_CSTRING(".ttf"))) {
+ name = Substring(name, 0, name.Length() - 4);
+
+ // Strip off a .wide if it's there.
+ if (StringEndsWith(value, NS_LITERAL_STRING(".wide"))) {
+ g_hash_table_insert(wide_hash, g_strdup(name.get()),
+ g_strdup("wide"));
+ value = Substring(value, 0, name.Length() - 5);
+ }
+
+ g_hash_table_insert(encoder_hash,
+ g_strdup(name.get()),
+ g_strdup(NS_ConvertUTF16toUTF8(value).get()));
+ }
+ else if (StringEndsWith(name, NS_LITERAL_CSTRING(".ftcmap"))) {
+ name = Substring(name, 0, name.Length() - 7);
+ g_hash_table_insert(cmap_hash,
+ g_strdup(name.get()),
+ g_strdup(NS_ConvertUTF16toUTF8(value).get()));
+ }
+ else {
+ printf("unknown suffix used for mapping\n");
+ }
+ }
+
+ pango_fc_font_map_add_decoder_find_func(PANGO_FC_FONT_MAP(pango_xft_get_font_map(GDK_DISPLAY(),gdk_x11_get_default_screen())),
+ mozilla_find_decoder,
+ NULL,
+ NULL);
+
+ initialized = PR_TRUE;
+
+#ifdef DEBUG_CUSTOM_ENCODER
+ printf("*** encoders\n");
+ g_hash_table_foreach(encoder_hash, (GHFunc)dump_hash, NULL);
+
+ printf("*** cmaps\n");
+ g_hash_table_foreach(cmap_hash, (GHFunc)dump_hash, NULL);
+#endif
+
+ return 0;
+
+ loser:
+ return -1;
+}
+
+FcCharSet *
+mozilla_decoder_get_charset (PangoFcDecoder *decoder,
+ PangoFcFont *fcfont)
+{
+ MozillaDecoderPrivate *priv = MOZILLA_DECODER_GET_PRIVATE(decoder);
+
+ if (priv->charset)
+ return priv->charset;
+
+ // First time this has been accessed. Populate the charset.
+ priv->charset = FcCharSetCreate();
+
+ if (!gCharsetManager) {
+ nsServiceManager::GetService(kCharsetConverterManagerCID,
+ NS_GET_IID(nsICharsetConverterManager), (nsISupports**)&gCharsetManager);
+ }
+
+ nsCOMPtr<nsIUnicodeEncoder> encoder;
+ nsCOMPtr<nsICharRepresentable> represent;
+
+ if (!gCharsetManager)
+ goto end;
+
+ gCharsetManager->GetUnicodeEncoderRaw(priv->encoder, getter_AddRefs(encoder));
+ if (!encoder)
+ goto end;
+
+ encoder->SetOutputErrorBehavior(encoder->kOnError_Replace, nsnull, '?');
+
+ priv->uEncoder = encoder;
+
+ represent = do_QueryInterface(encoder);
+ if (!represent)
+ goto end;
+
+ PRUint32 map[UCS2_MAP_LEN];
+ memset(map, 0, sizeof(map));
+
+ represent->FillInfo(map);
+
+ for (int i = 0; i < NUM_UNICODE_CHARS; i++) {
+ if (IS_REPRESENTABLE(map, i))
+ FcCharSetAddChar(priv->charset, i);
+ }
+
+ end:
+ return priv->charset;
+}
+
+PangoGlyph
+mozilla_decoder_get_glyph (PangoFcDecoder *decoder,
+ PangoFcFont *fcfont,
+ guint32 wc)
+{
+ MozillaDecoderPrivate *priv = MOZILLA_DECODER_GET_PRIVATE(decoder);
+
+ PangoGlyph retval = 0;
+ PRUnichar inchar = wc;
+ PRInt32 inlen = 1;
+ char outchar[2] = {0,0};
+ PRInt32 outlen = 2;
+
+ priv->uEncoder->Convert(&inchar, &inlen, outchar, &outlen);
+ if (outlen != 1) {
+ printf("Warning: mozilla_decoder_get_glyph doesn't support more than one character conversions.\n");
+ return 0;
+ }
+
+ FT_Face face = pango_fc_font_lock_face(fcfont);
+
+#ifdef DEBUG_CUSTOM_ENCODER
+ char *filename;
+ FcPatternGetString(fcfont->font_pattern, FC_FILE, 0, (FcChar8 **)&filename);
+ printf("filename is %s\n", filename);
+#endif
+
+ // Make sure to set the right charmap before trying to get the
+ // glyph
+ if (priv->cmap) {
+ if (!strcmp(priv->cmap, "mac_roman")) {
+ FT_Select_Charmap(face, ft_encoding_apple_roman);
+ }
+ else if (!strcmp(priv->cmap, "unicode")) {
+ FT_Select_Charmap(face, ft_encoding_unicode);
+ }
+ else {
+ printf("Warning: Invalid charmap entry for family %s\n",
+ priv->family);
+ }
+ }
+
+ // Standard 8 bit to glyph translation
+ if (!priv->is_wide) {
+ FcChar32 blah = PRUint8(outchar[0]);
+ retval = FT_Get_Char_Index(face, blah);
+#ifdef DEBUG_CUSTOM_ENCODER
+ printf("wc 0x%x outchar[0] 0x%x index 0x%x retval 0x%x face %p\n",
+ wc, outchar[0], blah, retval, (void *)face);
+#endif
+ }
+ else {
+ printf("Warning: We don't support .wide fonts!\n");
+ retval = 0;
+ }
+
+ pango_fc_font_unlock_face(fcfont);
+
+ return retval;
+}
+
+PangoFcDecoder *
+mozilla_find_decoder (FcPattern *pattern, gpointer user_data)
+{
+ // Compare the family name of the font that's been opened to see
+ // if we have a custom decoder.
+ const char *orig = NULL;
+ FcPatternGetString(pattern, FC_FAMILY, 0, (FcChar8 **)&orig);
+
+ nsCAutoString family;
+ family.Assign(orig);
+
+ family.StripWhitespace();
+ ToLowerCase(family);
+
+ char *encoder = (char *)g_hash_table_lookup(encoder_hash, family.get());
+ if (!encoder)
+ return NULL;
+
+ MozillaDecoder *decoder = mozilla_decoder_new();
+
+ MozillaDecoderPrivate *priv = MOZILLA_DECODER_GET_PRIVATE(decoder);
+
+ priv->family = g_strdup(family.get());
+ priv->encoder = g_strdup(encoder);
+
+ char *cmap = (char *)g_hash_table_lookup(cmap_hash, family.get());
+ if (cmap)
+ priv->cmap = g_strdup(cmap);
+
+ char *wide = (char *)g_hash_table_lookup(wide_hash, family.get());
+ if (wide)
+ priv->is_wide = TRUE;
+
+ return PANGO_FC_DECODER(decoder);
+}
--- mozilla/gfx/src/gtk/gfxgtk.pkg.foo 2004-01-06 20:21:35.000000000 -0500
+++ mozilla/gfx/src/gtk/gfxgtk.pkg 2004-10-18 22:49:40.000000000 -0400
@@ -7,3 +7,6 @@
#if MOZ_ENABLE_XFT
dist/bin/res/fonts/fontEncoding.properties
#endif
+#if MOZ_ENABLE_PANGO
+dist/bin/res/fonts/pangoFontEncoding.properties
+#endif
--- mozilla/gfx/src/gtk/nsFontMetricsXft.cpp.foo 2004-04-05 15:18:43.000000000 -0400
+++ mozilla/gfx/src/gtk/nsFontMetricsXft.cpp 2004-10-18 22:49:40.000000000 -0400
@@ -238,7 +238,7 @@
static int CalculateSlant (PRUint8 aStyle);
static int CalculateWeight (PRUint16 aWeight);
-static void AddLangGroup (FcPattern *aPattern, nsIAtom *aLangGroup);
+/* static */ void AddLangGroup (FcPattern *aPattern, nsIAtom *aLangGroup);
static void AddFFRE (FcPattern *aPattern, nsCString *aFamily,
PRBool aWeak);
static void FFREToFamily (nsACString &aFFREName, nsACString &oFamily);
@@ -449,7 +449,7 @@
// Make sure that the pixel size is at least greater than zero
if (mPixelSize < 1) {
#ifdef DEBUG
- printf("*** Warning: nsFontMetricsXft was passed a pixel size of %d\n",
+ printf("*** Warning: nsFontMetricsXft was passed a pixel size of %f\n",
mPixelSize);
#endif
mPixelSize = 1;
@@ -474,6 +474,26 @@
if (NS_FAILED(RealizeFont()))
return NS_ERROR_FAILURE;
+#ifdef DEBUG_foo
+ printf("%i\n", mXHeight);
+ printf("%i\n", mSuperscriptOffset);
+ printf("%i\n", mSubscriptOffset);
+ printf("%i\n", mStrikeoutOffset);
+ printf("%i\n", mStrikeoutSize);
+ printf("%i\n", mUnderlineOffset);
+ printf("%i\n", mUnderlineSize);
+ printf("%i\n", mMaxHeight);
+ printf("%i\n", mLeading);
+ printf("%i\n", mEmHeight);
+ printf("%i\n", mEmAscent);
+ printf("%i\n", mEmDescent);
+ printf("%i\n", mMaxAscent);
+ printf("%i\n", mMaxDescent);
+ printf("%i\n", mMaxAdvance);
+ printf("%i\n", mSpaceWidth);
+ printf("%i\n", mAveCharWidth);
+#endif /* DEBUG_foo */
+
return NS_OK;
}
@@ -530,6 +550,10 @@
f = mDeviceContext->DevUnitsToAppUnits();
aWidth = NSToCoordRound(glyphInfo.xOff * f);
+#ifdef DEBUG_foo
+ printf("GetWidth (char *) %d\n", aWidth);
+#endif
+
return NS_OK;
}
@@ -553,6 +577,10 @@
if (aFontID)
*aFontID = 0;
+#ifdef DEBUG_foo
+ printf("GetWidth %d\n", aWidth);
+#endif
+
return NS_OK;
}
@@ -586,6 +614,11 @@
if (nsnull != aFontID)
*aFontID = 0;
+#ifdef DEBUG_foo
+ printf("GetTextDimensions %d %d %d\n", aDimensions.width,
+ aDimensions.ascent, aDimensions.descent);
+#endif
+
return NS_OK;
}
@@ -645,6 +678,10 @@
nsAutoDrawSpecBuffer drawBuffer(data.draw, &data.color);
data.drawBuffer = &drawBuffer;
+#ifdef DEBUG_foo
+ printf("DrawString (char *)\n");
+#endif
+
return EnumerateGlyphs(aString, aLength,
&nsFontMetricsXft::DrawStringCallback, &data);
}
@@ -675,6 +712,10 @@
nsAutoDrawSpecBuffer drawBuffer(data.draw, &data.color);
data.drawBuffer = &drawBuffer;
+#ifdef DEBUG_foo
+ printf("DrawString\n");
+#endif
+
return EnumerateGlyphs(aString, aLength,
&nsFontMetricsXft::DrawStringCallback, &data);
}
@@ -714,6 +755,15 @@
aBoundingMetrics.ascent = NSToCoordRound(aBoundingMetrics.ascent * P2T);
aBoundingMetrics.descent = NSToCoordRound(aBoundingMetrics.descent * P2T);
+#ifdef DEBUG_foo
+ printf("GetBoundingMetrics (char *)%d %d %d %d %d\n",
+ aBoundingMetrics.leftBearing,
+ aBoundingMetrics.rightBearing,
+ aBoundingMetrics.width,
+ aBoundingMetrics.ascent,
+ aBoundingMetrics.descent);
+#endif
+
return NS_OK;
}
@@ -755,6 +805,15 @@
if (nsnull != aFontID)
*aFontID = 0;
+#ifdef DEBUG_foo
+ printf("GetBoundingMetrics %d %d %d %d %d\n",
+ aBoundingMetrics.leftBearing,
+ aBoundingMetrics.rightBearing,
+ aBoundingMetrics.width,
+ aBoundingMetrics.ascent,
+ aBoundingMetrics.descent);
+#endif
+
return NS_OK;
}
@@ -766,6 +825,12 @@
return nsnull;
}
+nsresult
+nsFontMetricsXft::SetRightToLeftText(PRBool aIsRTL)
+{
+ return NS_OK;
+}
+
PRUint32
nsFontMetricsXft::GetHints(void)
{
--- mozilla/gfx/src/gtk/Makefile.in.foo 2003-11-10 07:24:51.000000000 -0500
+++ mozilla/gfx/src/gtk/Makefile.in 2004-10-18 22:51:01.000000000 -0400
@@ -102,6 +102,12 @@
nsFontMetricsXft.cpp
endif
+ifdef MOZ_ENABLE_PANGO
+CPPSRCS += \
+ nsFontMetricsPango.cpp \
+ mozilla-decoder.cpp
+endif
+
ifdef MOZ_ENABLE_GTK
CPPSRCS += \
nsRegionGTK.cpp \
@@ -155,10 +161,10 @@
endif
ifdef MOZ_ENABLE_XFT
-libs:: fontEncoding.properties
+libs:: fontEncoding.properties pangoFontEncoding.properties
$(INSTALL) $^ $(DIST)/bin/res/fonts
-install:: fontEncoding.properties
+install:: fontEncoding.properties pangoFontEncoding.properties
$(SYSINSTALL) $(IFLAGS1) $^ $(DESTDIR)$(mozappdir)/res/fonts
endif
--- /dev/null 2004-02-18 10:26:44.000000000 -0500
+++ mozilla/gfx/src/gtk/pangoFontEncoding.properties 2004-10-18 22:49:40.000000000 -0400
@@ -0,0 +1,120 @@
+# ***** BEGIN LICENSE BLOCK *****
+# Version: MPL 1.1/GPL 2.0/LGPL 2.1
+#
+# The contents of this file are subject to the Mozilla Public License Version
+# 1.1 (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+# http://www.mozilla.org/MPL/
+#
+# Software distributed under the License is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+# for the specific language governing rights and limitations under the
+# License.
+#
+# The Original Code is Mozilla MathML Project.
+#
+# The Initial Developer of the Original Code is
+# The University of Queensland.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+# Roger B. Sidje <rbs@maths.uq.edu.au>
+# Jungshik Shin <jshin@mailaps.org>
+# Christopher Blizzard <blizzard@mozilla.org>
+#
+# Alternatively, the contents of this file may be used under the terms of
+# either the GNU General Public License Version 2 or later (the "GPL"), or
+# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+# in which case the provisions of the GPL or the LGPL are applicable instead
+# of those above. If you wish to allow use of your version of this file only
+# under the terms of either the GPL or the LGPL, and not to allow others to
+# use your version of this file under the terms of the MPL, indicate your
+# decision by deleting the provisions above and replace them with the notice
+# and other provisions required by the GPL or the LGPL. If you do not delete
+# the provisions above, a recipient may use your version of this file under
+# the terms of any one of the MPL, the GPL or the LGPL.
+#
+# ***** END LICENSE BLOCK *****
+
+# LOCALIZATION NOTE: FILE
+# Do not translate anything in this file
+
+# This file contains supported custom encodings for pango font
+# rendering. For information about the specific encodings, look at
+# fontEncoding.properties. It contains a lot more verbiage than you
+# will find here. There are a lot of encodings supported in the old
+# encoding file that pango supports directly, so there should be
+# little reason to use those custom encodings. The pango custom code
+# doesn't support .wide fonts, so consider yourself warned!
+#
+
+# To be honest, we basically support mathml and that's about it.
+
+encoding.cmr10.ttf = x-ttf-cmr
+encoding.cmmi10.ttf = x-ttf-cmmi
+encoding.cmsy10.ttf = x-ttf-cmsy
+encoding.cmex10.ttf = x-ttf-cmex
+
+encoding.cmr10.ftcmap = unicode
+encoding.cmmi10.ftcmap = unicode
+encoding.cmsy10.ftcmap = unicode
+encoding.cmex10.ftcmap = unicode
+
+encoding.math1.ttf = x-mathematica1
+encoding.math1-bold.ttf = x-mathematica1
+encoding.math1mono.ttf = x-mathematica1
+encoding.math1mono-bold.ttf = x-mathematica1
+
+encoding.math2.ttf = x-mathematica2
+encoding.math2-bold.ttf = x-mathematica2
+encoding.math2mono.ttf = x-mathematica2
+encoding.math2mono-bold.ttf = x-mathematica2
+
+encoding.math3.ttf = x-mathematica3
+encoding.math3-bold.ttf = x-mathematica3
+encoding.math3mono.ttf = x-mathematica3
+encoding.math3mono-bold.ttf = x-mathematica3
+
+encoding.math4.ttf = x-mathematica4
+encoding.math4-bold.ttf = x-mathematica4
+encoding.math4mono.ttf = x-mathematica4
+encoding.math4mono-bold.ttf = x-mathematica4
+
+encoding.math5.ttf = x-mathematica5
+encoding.math5-bold.ttf = x-mathematica5
+encoding.math5bold.ttf = x-mathematica5
+encoding.math5mono.ttf = x-mathematica5
+encoding.math5mono-bold.ttf = x-mathematica5
+encoding.math5monobold.ttf = x-mathematica5
+
+encoding.math1.ftcmap = mac_roman
+encoding.math1-bold.ftcmap = mac_roman
+encoding.math1mono.ftcmap = mac_roman
+encoding.math1mono-bold.ftcmap = mac_roman
+
+encoding.math2.ftcmap = mac_roman
+encoding.math2-bold.ftcmap = mac_roman
+encoding.math2mono.ftcmap = mac_roman
+encoding.math2mono-bold.ftcmap = mac_roman
+
+encoding.math3.ftcmap = mac_roman
+encoding.math3-bold.ftcmap = mac_roman
+encoding.math3mono.ftcmap = mac_roman
+encoding.math3mono-bold.ftcmap = mac_roman
+
+encoding.math4.ftcmap = mac_roman
+encoding.math4-bold.ftcmap = mac_roman
+encoding.math4mono.ftcmap = mac_roman
+encoding.math4mono-bold.ftcmap = mac_roman
+
+encoding.math5.ftcmap = mac_roman
+encoding.math5-bold.ftcmap = mac_roman
+encoding.math5bold.ftcmap = mac_roman
+encoding.math5mono.ftcmap = mac_roman
+encoding.math5mono-bold.ftcmap = mac_roman
+encoding.math5monobold.ftcmap = mac_roman
+
+encoding.mtextra.ttf = x-mtextra
+encoding.mtextra.ftcmap = mac_roman
+
--- mozilla/gfx/src/gtk/nsFontMetricsUtils.cpp.foo 2002-10-11 22:03:32.000000000 -0400
+++ mozilla/gfx/src/gtk/nsFontMetricsUtils.cpp 2004-10-18 22:51:32.000000000 -0400
@@ -50,11 +50,20 @@
#include "nsFontMetricsGTK.h"
#endif
+#ifdef MOZ_ENABLE_PANGO
+#include "nsFontMetricsPango.h"
+#endif
+
#include "nsFontMetricsUtils.h"
PRUint32
NS_FontMetricsGetHints(void)
{
+#ifdef MOZ_ENABLE_PANGO
+ if (NS_IsPangoEnabled()) {
+ return nsFontMetricsPango::GetHints();
+ }
+#endif
#ifdef MOZ_ENABLE_XFT
if (NS_IsXftEnabled()) {
return nsFontMetricsXft::GetHints();
@@ -69,6 +78,11 @@
nsresult
NS_FontMetricsFamilyExists(nsIDeviceContext *aDevice, const nsString &aName)
{
+#ifdef MOZ_ENABLE_PANGO
+ if (NS_IsPangoEnabled()) {
+ return nsFontMetricsPango::FamilyExists(aDevice, aName);
+ }
+#endif
#ifdef MOZ_ENABLE_XFT
// try to fall through to the core fonts if xft fails
if (NS_IsXftEnabled()) {
@@ -121,3 +135,17 @@
}
#endif /* MOZ_ENABLE_XFT */
+
+#ifdef MOZ_ENABLE_PANGO
+
+PRBool
+NS_IsPangoEnabled(void)
+{
+ char *val = PR_GetEnv("MOZ_ENABLE_PANGO");
+ if (val)
+ return TRUE;
+
+ return FALSE;
+}
+
+#endif
--- /dev/null 2004-02-18 10:26:44.000000000 -0500
+++ mozilla/gfx/src/gtk/nsFontMetricsPango.cpp 2004-10-18 22:49:40.000000000 -0400
@@ -0,0 +1,1662 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:expandtab:shiftwidth=4:tabstop=4:
+ */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Christopher Blizzard
+ * <blizzard@mozilla.org>. Portions created by the Initial Developer
+ * are Copyright (C) 2004 the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsFont.h"
+#include "nsIDeviceContext.h"
+#include "nsICharsetConverterManager.h"
+#include "nsIPref.h"
+#include "nsIServiceManagerUtils.h"
+
+#define PANGO_ENABLE_BACKEND
+#define PANGO_ENABLE_ENGINE
+
+#include "nsFontMetricsPango.h"
+#include "nsRenderingContextGTK.h"
+#include "nsDeviceContextGTK.h"
+
+#include "nsUnicharUtils.h"
+#include "nsQuickSort.h"
+
+#include <pango/pangoxft.h>
+#include <fontconfig/fontconfig.h>
+#include <gdk/gdk.h>
+#include <gdk/gdkx.h>
+#include <freetype/tttables.h>
+
+#include "mozilla-decoder.h"
+
+#define FORCE_PR_LOG
+#include "prlog.h"
+
+// Globals
+
+static PRLogModuleInfo *gPangoFontLog;
+static int gNumInstances;
+
+// Defines
+
+// This is the scaling factor that we keep fonts limited to against
+// the display size. If a pixel size is requested that is more than
+// this factor larger than the height of the display, it's clamped to
+// that value instead of the requested size.
+#define FONT_MAX_FONT_SCALE 2
+
+static NS_DEFINE_CID(kCharsetConverterManagerCID,
+ NS_ICHARSETCONVERTERMANAGER_CID);
+
+struct MozPangoLangGroup {
+ const char *mozLangGroup;
+ const char *PangoLang;
+};
+
+static const MozPangoLangGroup MozPangoLangGroups[] = {
+ { "x-western", "en" },
+ { "x-central-euro", "pl" },
+ { "x-cyrillic", "ru" },
+ { "x-baltic", "lv" },
+ { "x-devanagari", "hi" },
+ { "x-tamil", "ta" },
+ { "x-unicode", 0 },
+ { "x-user-def", 0 },
+};
+
+#define NUM_PANGO_LANG_GROUPS (sizeof (MozPangoLangGroups) / \
+ sizeof (MozPangoLangGroups[0]))
+
+#ifdef DEBUG
+#define DUMP_PRUNICHAR(ustr, ulen) for (PRUint32 llen=0;llen<ulen;llen++) \
+ printf("0x%x ", ustr[llen]); \
+ printf("\n");
+#endif
+
+// rounding and truncation functions for a Freetype floating point number
+// (FT26Dot6) stored in a 32bit integer with high 26 bits for the integer
+// part and low 6 bits for the fractional part.
+#define MOZ_FT_ROUND(x) (((x) + 32) & ~63) // 63 = 2^6 - 1
+#define MOZ_FT_TRUNC(x) ((x) >> 6)
+#define CONVERT_DESIGN_UNITS_TO_PIXELS(v, s) \
+ MOZ_FT_TRUNC(MOZ_FT_ROUND(FT_MulFix((v) , (s))))
+
+// Static function decls
+
+static PRBool IsASCIIFontName (const nsString& aName);
+static int FFRECountHyphens (nsACString &aFFREName);
+
+static PangoLanguage *GetPangoLanguage(nsIAtom *aLangGroup);
+static const MozPangoLangGroup* FindPangoLangGroup (nsACString &aLangGroup);
+
+static void FreeGlobals (void);
+
+static PangoStyle CalculateStyle (PRUint8 aStyle);
+static PangoWeight CalculateWeight (PRUint16 aWeight);
+
+static nsresult EnumFontsPango (nsIAtom* aLangGroup, const char* aGeneric,
+ PRUint32* aCount, PRUnichar*** aResult);
+static int CompareFontNames (const void* aArg1, const void* aArg2,
+ void* aClosure);
+
+extern void AddLangGroup (FcPattern *aPattern, nsIAtom *aLangGroup);
+
+nsFontMetricsPango::nsFontMetricsPango()
+{
+ if (!gPangoFontLog)
+ gPangoFontLog = PR_NewLogModule("PangoFont");
+
+ gNumInstances++;
+
+ mPangoFontDesc = nsnull;
+ mPangoContext = nsnull;
+ mLTRPangoContext = nsnull;
+ mRTLPangoContext = nsnull;
+ mPangoAttrList = nsnull;
+ mIsRTL = PR_FALSE;
+
+ static PRBool initialized = PR_FALSE;
+ if (initialized)
+ return;
+
+ // Initialized the custom decoders
+ if (!mozilla_decoders_init())
+ initialized = PR_TRUE;
+}
+
+nsFontMetricsPango::~nsFontMetricsPango()
+{
+ delete mFont;
+
+ if (mDeviceContext)
+ mDeviceContext->FontMetricsDeleted(this);
+
+ if (mPangoFontDesc)
+ pango_font_description_free(mPangoFontDesc);
+
+ if (mLTRPangoContext)
+ g_object_unref(mLTRPangoContext);
+
+ if (mRTLPangoContext)
+ g_object_unref(mRTLPangoContext);
+
+ if (mPangoAttrList)
+ pango_attr_list_unref(mPangoAttrList);
+
+ // XXX clean up all the pango objects
+
+ if (--gNumInstances == 0)
+ FreeGlobals();
+}
+
+
+NS_IMPL_ISUPPORTS1(nsFontMetricsPango, nsIFontMetrics)
+
+// nsIFontMetrics impl
+
+NS_IMETHODIMP
+nsFontMetricsPango::Init(const nsFont& aFont, nsIAtom* aLangGroup,
+ nsIDeviceContext *aContext)
+{
+ mFont = new nsFont(aFont);
+ mLangGroup = aLangGroup;
+
+ // Hang on to the device context
+ mDeviceContext = aContext;
+
+ mPointSize = NSTwipsToFloatPoints(mFont->size);
+
+ // Make sure to clamp the pixel size to something reasonable so we
+ // don't make the X server blow up.
+ nscoord screenPixels = gdk_screen_height();
+ mPointSize = PR_MIN(screenPixels * FONT_MAX_FONT_SCALE, mPointSize);
+
+ // enumerate over the font names passed in
+ mFont->EnumerateFamilies(nsFontMetricsPango::EnumFontCallback, this);
+
+ nsCOMPtr<nsIPref> prefService;
+ prefService = do_GetService(NS_PREF_CONTRACTID);
+ if (!prefService)
+ return NS_ERROR_FAILURE;
+
+ nsXPIDLCString value;
+
+ // Set up the default font name if it's not set
+ if (!mGenericFont) {
+ prefService->CopyCharPref("font.default", getter_Copies(value));
+
+ if (value.get())
+ mDefaultFont = value.get();
+ else
+ mDefaultFont = "serif";
+
+ mGenericFont = &mDefaultFont;
+ }
+
+ // set up the minimum sizes for fonts
+ if (mLangGroup) {
+ nsCAutoString name("font.min-size.");
+
+ if (mGenericFont->Equals("monospace"))
+ name.Append("fixed");
+ else
+ name.Append("variable");
+
+ name.Append(char('.'));
+
+ const char* langGroup;
+ mLangGroup->GetUTF8String(&langGroup);
+
+ name.Append(langGroup);
+
+ PRInt32 minimumInt = 0;
+ float minimum;
+ nsresult res;
+ res = prefService->GetIntPref(name.get(), &minimumInt);
+ if (NS_FAILED(res))
+ prefService->GetDefaultIntPref(name.get(), &minimumInt);
+
+ if (minimumInt < 0)
+ minimumInt = 0;
+
+ minimum = minimumInt;
+
+ // The minimum size is specified in pixels, not in points.
+ // Convert the size from pixels to points.
+ minimum = NSTwipsToFloatPoints(NSFloatPixelsToTwips(minimum, mDeviceContext->DevUnitsToAppUnits()));
+ if (mPointSize < minimum)
+ mPointSize = minimum;
+ }
+
+ // Make sure that the pixel size is at least greater than zero
+ if (mPointSize < 1) {
+#ifdef DEBUG
+ printf("*** Warning: nsFontMetricsPango created with point size %f\n",
+ mPointSize);
+#endif
+ mPointSize = 1;
+ }
+
+ nsresult rv = RealizeFont();
+ if (NS_FAILED(rv))
+ return rv;
+
+ // Cache font metrics for the 'x' character
+ return CacheFontMetrics();
+}
+
+nsresult
+nsFontMetricsPango::CacheFontMetrics(void)
+{
+ // Get our scale factor
+ float f;
+ float val;
+ f = mDeviceContext->DevUnitsToAppUnits();
+
+ mPangoAttrList = pango_attr_list_new();
+
+ GList *items = pango_itemize(mPangoContext,
+ "a", 0, 1, mPangoAttrList, NULL);
+
+ if (!items)
+ return NS_ERROR_FAILURE;
+
+ guint nitems = g_list_length(items);
+ if (nitems != 1)
+ return NS_ERROR_FAILURE;
+
+ PangoItem *item = (PangoItem *)items->data;
+ PangoFcFont *fcfont = PANGO_FC_FONT(item->analysis.font);
+ if (!fcfont)
+ return NS_ERROR_FAILURE;
+
+ // Get our font face
+ FT_Face face;
+ TT_OS2 *os2;
+ XftFont *xftFont = pango_xft_font_get_font(PANGO_FONT(fcfont));
+ if (!xftFont)
+ return NS_ERROR_NOT_AVAILABLE;
+
+ face = XftLockFace(xftFont);
+ os2 = (TT_OS2 *) FT_Get_Sfnt_Table(face, ft_sfnt_os2);
+
+ // mEmHeight (size in pixels of EM height)
+ int size;
+ if (FcPatternGetInteger(fcfont->font_pattern, FC_PIXEL_SIZE, 0, &size) !=
+ FcResultMatch) {
+ size = 12;
+ }
+ mEmHeight = PR_MAX(1, nscoord(size * f));
+
+ // mMaxAscent
+ mMaxAscent = nscoord(xftFont->ascent * f);
+
+ // mMaxDescent
+ mMaxDescent = nscoord(xftFont->descent * f);
+
+ nscoord lineHeight = mMaxAscent + mMaxDescent;
+
+ // mLeading (needs ascent and descent and EM height)
+ if (lineHeight > mEmHeight)
+ mLeading = lineHeight - mEmHeight;
+ else
+ mLeading = 0;
+
+ // mMaxHeight (needs ascent and descent)
+ mMaxHeight = lineHeight;
+
+ // mEmAscent (needs maxascent, EM height, ascent and descent)
+ mEmAscent = nscoord(mMaxAscent * mEmHeight / lineHeight);
+
+ // mEmDescent (needs EM height and EM ascent
+ mEmDescent = mEmHeight - mEmAscent;
+
+ // mMaxAdvance
+ mMaxAdvance = nscoord(xftFont->max_advance_width * f);
+
+ // mSpaceWidth (width of a space)
+ nscoord tmpWidth;
+ GetWidth(" ", 1, tmpWidth, NULL);
+ mSpaceWidth = tmpWidth;
+
+ // mAveCharWidth (width of an 'average' char)
+ // XftTextExtents16(GDK_DISPLAY(), xftFont, &xUnichar, 1, &extents);
+ //rawWidth = extents.width;
+ //mAveCharWidth = NSToCoordRound(rawWidth * f);
+ GetWidth("x", 1, tmpWidth, NULL);
+ mAveCharWidth = tmpWidth;
+
+ // mXHeight (height of an 'x' character)
+ PRUnichar xUnichar('x');
+ XGlyphInfo extents;
+ if (FcCharSetHasChar(xftFont->charset, xUnichar)) {
+ XftTextExtents16(GDK_DISPLAY(), xftFont, &xUnichar, 1, &extents);
+ mXHeight = extents.height;
+ }
+ else {
+ // 56% of ascent, best guess for non-true type or asian fonts
+ mXHeight = nscoord(((float)mMaxAscent) * 0.56);
+ }
+ mXHeight = nscoord(mXHeight * f);
+
+ // mUnderlineOffset (offset for underlines)
+ val = CONVERT_DESIGN_UNITS_TO_PIXELS(face->underline_position,
+ face->size->metrics.y_scale);
+ if (val) {
+ mUnderlineOffset = NSToIntRound(val * f);
+ }
+ else {
+ mUnderlineOffset =
+ -NSToIntRound(PR_MAX(1, floor(0.1 * xftFont->height + 0.5)) * f);
+ }
+
+ // mUnderlineSize (thickness of an underline)
+ val = CONVERT_DESIGN_UNITS_TO_PIXELS(face->underline_thickness,
+ face->size->metrics.y_scale);
+ if (val) {
+ mUnderlineSize = nscoord(PR_MAX(f, NSToIntRound(val * f)));
+ }
+ else {
+ mUnderlineSize =
+ NSToIntRound(PR_MAX(1, floor(0.05 * xftFont->height + 0.5)) * f);
+ }
+
+ // mSuperscriptOffset
+ if (os2 && os2->ySuperscriptYOffset) {
+ val = CONVERT_DESIGN_UNITS_TO_PIXELS(os2->ySuperscriptYOffset,
+ face->size->metrics.y_scale);
+ mSuperscriptOffset = nscoord(PR_MAX(f, NSToIntRound(val * f)));
+ }
+ else {
+ mSuperscriptOffset = mXHeight;
+ }
+
+ // mSubscriptOffset
+ if (os2 && os2->ySubscriptYOffset) {
+ val = CONVERT_DESIGN_UNITS_TO_PIXELS(os2->ySubscriptYOffset,
+ face->size->metrics.y_scale);
+ // some fonts have the incorrect sign.
+ val = (val < 0) ? -val : val;
+ mSubscriptOffset = nscoord(PR_MAX(f, NSToIntRound(val * f)));
+ }
+ else {
+ mSubscriptOffset = mXHeight;
+ }
+
+ // mStrikeoutOffset
+ mStrikeoutOffset = NSToCoordRound(mXHeight / 2.0);
+
+ // mStrikeoutSize
+ mStrikeoutSize = mUnderlineSize;
+
+ XftUnlockFace(xftFont);
+
+ /*
+ printf("%i\n", mXHeight);
+ printf("%i\n", mSuperscriptOffset);
+ printf("%i\n", mSubscriptOffset);
+ printf("%i\n", mStrikeoutOffset);
+ printf("%i\n", mStrikeoutSize);
+ printf("%i\n", mUnderlineOffset);
+ printf("%i\n", mUnderlineSize);
+ printf("%i\n", mMaxHeight);
+ printf("%i\n", mLeading);
+ printf("%i\n", mEmHeight);
+ printf("%i\n", mEmAscent);
+ printf("%i\n", mEmDescent);
+ printf("%i\n", mMaxAscent);
+ printf("%i\n", mMaxDescent);
+ printf("%i\n", mMaxAdvance);
+ printf("%i\n", mSpaceWidth);
+ printf("%i\n", mAveCharWidth);
+ */
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFontMetricsPango::Destroy()
+{
+ mDeviceContext = nsnull;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFontMetricsPango::GetFont(const nsFont *&aFont)
+{
+ aFont = mFont;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFontMetricsPango::GetLangGroup(nsIAtom** aLangGroup)
+{
+ *aLangGroup = mLangGroup;
+ NS_IF_ADDREF(*aLangGroup);
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFontMetricsPango::GetFontHandle(nsFontHandle &aHandle)
+{
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+// nsIFontMetricsPango impl
+
+nsresult
+nsFontMetricsPango::GetWidth(const char* aString, PRUint32 aLength,
+ nscoord& aWidth,
+ nsRenderingContextGTK *aContext)
+{
+ PangoLayout *layout = pango_layout_new(mPangoContext);
+
+ pango_layout_set_text(layout, aString, aLength);
+
+ int width, height;
+
+ pango_layout_get_size(layout, &width, &height);
+
+ width /= PANGO_SCALE;
+
+ g_object_unref(layout);
+
+ float f;
+ f = mDeviceContext->DevUnitsToAppUnits();
+ aWidth = NSToCoordRound(width * f);
+
+ // printf("GetWidth (char *) %d\n", aWidth);
+
+ return NS_OK;
+}
+
+nsresult
+nsFontMetricsPango::GetWidth(const PRUnichar* aString, PRUint32 aLength,
+ nscoord& aWidth, PRInt32 *aFontID,
+ nsRenderingContextGTK *aContext)
+{
+ nsresult rv = NS_OK;
+ PangoLayout *layout = pango_layout_new(mPangoContext);
+
+ gchar *text = g_utf16_to_utf8(aString, aLength,
+ NULL, NULL, NULL);
+
+ if (!text) {
+ aWidth = 0;
+#ifdef DEBUG
+ NS_WARNING("nsFontMetricsPango::GetWidth invalid unicode to follow");
+ DUMP_PRUNICHAR(aString, aLength)
+#endif
+ rv = NS_ERROR_FAILURE;
+ goto loser;
+ }
+
+ gint width, height;
+
+ pango_layout_set_text(layout, text, strlen(text));
+ pango_layout_get_size(layout, &width, &height);
+
+ width /= PANGO_SCALE;
+
+ float f;
+ f = mDeviceContext->DevUnitsToAppUnits();
+ aWidth = NSToCoordRound(width * f);
+
+ // printf("GetWidth %d\n", aWidth);
+
+ loser:
+ g_free(text);
+ g_object_unref(layout);
+
+ return rv;
+}
+
+
+nsresult
+nsFontMetricsPango::GetTextDimensions(const PRUnichar* aString,
+ PRUint32 aLength,
+ nsTextDimensions& aDimensions,
+ PRInt32* aFontID,
+ nsRenderingContextGTK *aContext)
+{
+ nsresult rv = NS_OK;
+
+ PangoLayout *layout = pango_layout_new(mPangoContext);
+
+ gchar *text = g_utf16_to_utf8(aString, aLength,
+ NULL, NULL, NULL);
+
+ if (!text) {
+#ifdef DEBUG
+ NS_WARNING("nsFontMetricsPango::GetTextDimensions invalid unicode to follow");
+ DUMP_PRUNICHAR(aString, aLength)
+#endif
+ aDimensions.width = 0;
+ aDimensions.ascent = 0;
+ aDimensions.descent = 0;
+
+ rv = NS_ERROR_FAILURE;
+ goto loser;
+ }
+
+
+ pango_layout_set_text(layout, text, strlen(text));
+
+ // Get the logical extents
+ PangoLayoutLine *line;
+ if (pango_layout_get_line_count(layout) != 1) {
+ printf("Warning: more than one line!\n");
+ }
+ line = pango_layout_get_line(layout, 0);
+
+ PangoRectangle rect;
+ pango_layout_line_get_extents(line, NULL, &rect);
+
+ float P2T;
+ P2T = mDeviceContext->DevUnitsToAppUnits();
+
+ aDimensions.width = NSToCoordRound(rect.width / PANGO_SCALE * P2T);
+ aDimensions.ascent = NSToCoordRound(PANGO_ASCENT(rect) / PANGO_SCALE * P2T);
+ aDimensions.descent = NSToCoordRound(PANGO_DESCENT(rect) / PANGO_SCALE * P2T);
+
+ // printf("GetTextDimensions %d %d %d\n", aDimensions.width,
+ //aDimensions.ascent, aDimensions.descent);
+
+ loser:
+ g_free(text);
+ g_object_unref(layout);
+
+ return rv;
+}
+
+nsresult
+nsFontMetricsPango::GetTextDimensions(const char* aString,
+ PRInt32 aLength,
+ PRInt32 aAvailWidth,
+ PRInt32* aBreaks,
+ PRInt32 aNumBreaks,
+ nsTextDimensions& aDimensions,
+ PRInt32& aNumCharsFit,
+ nsTextDimensions& aLastWordDimensions,
+ PRInt32* aFontID,
+ nsRenderingContextGTK *aContext)
+{
+
+ return GetTextDimensionsInternal(aString, aLength, aAvailWidth, aBreaks,
+ aNumBreaks, aDimensions, aNumCharsFit,
+ aLastWordDimensions, aContext);
+
+}
+
+nsresult
+nsFontMetricsPango::GetTextDimensions(const PRUnichar* aString,
+ PRInt32 aLength,
+ PRInt32 aAvailWidth,
+ PRInt32* aBreaks,
+ PRInt32 aNumBreaks,
+ nsTextDimensions& aDimensions,
+ PRInt32& aNumCharsFit,
+ nsTextDimensions& aLastWordDimensions,
+ PRInt32* aFontID,
+ nsRenderingContextGTK *aContext)
+{
+ nsresult rv = NS_OK;
+ PRInt32 curBreak = 0;
+ gchar *curChar;
+
+ PRInt32 *utf8Breaks = new PRInt32[aNumBreaks];
+
+ gchar *text = g_utf16_to_utf8(aString, (PRInt32)aLength,
+ NULL, NULL, NULL);
+
+ curChar = text;
+
+ if (!text) {
+#ifdef DEBUG
+ NS_WARNING("nsFontMetricsPango::GetWidth invalid unicode to follow");
+ DUMP_PRUNICHAR(aString, (PRUint32)aLength)
+#endif
+ rv = NS_ERROR_FAILURE;
+ goto loser;
+ }
+
+ // Covert the utf16 break offsets to utf8 break offsets
+ for (PRInt32 curOffset=0; curOffset < aLength;
+ curOffset++, curChar = g_utf8_find_next_char(curChar, NULL)) {
+ if (aBreaks[curBreak] == curOffset) {
+ utf8Breaks[curBreak] = curChar - text;
+ curBreak++;
+ }
+
+ if (IS_HIGH_SURROGATE(aString[curOffset]))
+ curOffset++;
+ }
+
+ // Always catch the last break
+ utf8Breaks[curBreak] = curChar - text;
+
+#if 0
+ if (strlen(text) != aLength) {
+ printf("Different lengths for utf16 %d and utf8 %d\n", aLength, strlen(text));
+ DUMP_PRUNICHAR(aString, aLength)
+ DUMP_PRUNICHAR(text, strlen(text))
+ for (PRInt32 i = 0; i < aNumBreaks; ++i) {
+ printf(" break %d utf16 %d utf8 %d\n", i, aBreaks[i], utf8Breaks[i]);
+ }
+ }
+#endif
+
+ // We'll use curBreak to indicate which of the breaks end up being
+ // used for the break point for this line.
+ curBreak = 0;
+ rv = GetTextDimensionsInternal(text, strlen(text), aAvailWidth, utf8Breaks,
+ aNumBreaks, aDimensions, aNumCharsFit,
+ aLastWordDimensions, aContext);
+
+ // Figure out which of the breaks we ended up using to convert
+ // back to utf16 - start from the end.
+ for (PRInt32 i = aNumBreaks - 1; i >= 0; --i) {
+ if (utf8Breaks[i] == aNumCharsFit) {
+ // if (aNumCharsFit != aBreaks[i])
+ // printf("Fixing utf8 -> utf16 %d -> %d\n", aNumCharsFit, aBreaks[i]);
+ aNumCharsFit = aBreaks[i];
+ break;
+ }
+ }
+
+ loser:
+ if (text)
+ g_free(text);
+
+ delete[] utf8Breaks;
+
+ return rv;
+}
+
+nsresult
+nsFontMetricsPango::DrawString(const char *aString, PRUint32 aLength,
+ nscoord aX, nscoord aY,
+ const nscoord* aSpacing,
+ nsRenderingContextGTK *aContext,
+ nsDrawingSurfaceGTK *aSurface)
+{
+ PangoLayout *layout = pango_layout_new(mPangoContext);
+
+ pango_layout_set_text(layout, aString, aLength);
+
+ int x = aX;
+ int y = aY;
+
+ aContext->GetTranMatrix()->TransformCoord(&x, &y);
+
+ PangoLayoutLine *line;
+ if (pango_layout_get_line_count(layout) != 1) {
+ printf("Warning: more than one line!\n");
+ }
+ line = pango_layout_get_line(layout, 0);
+
+ aContext->UpdateGC();
+ GdkGC *gc = aContext->GetGC();
+
+ if (aSpacing && *aSpacing) {
+ DrawStringSlowly(aString, NULL, aLength, aSurface->GetDrawable(),
+ gc, x, y, line, aSpacing);
+ }
+ else {
+ gdk_draw_layout_line(aSurface->GetDrawable(), gc,
+ x, y,
+ line);
+ }
+
+ g_object_unref(gc);
+ g_object_unref(layout);
+
+ // printf("DrawString (char *)\n");
+
+ return NS_OK;
+}
+
+nsresult
+nsFontMetricsPango::DrawString(const PRUnichar* aString, PRUint32 aLength,
+ nscoord aX, nscoord aY,
+ PRInt32 aFontID,
+ const nscoord* aSpacing,
+ nsRenderingContextGTK *aContext,
+ nsDrawingSurfaceGTK *aSurface)
+{
+ nsresult rv = NS_OK;
+ int x = aX;
+ int y = aY;
+
+ aContext->UpdateGC();
+ GdkGC *gc = aContext->GetGC();
+
+ PangoLayout *layout = pango_layout_new(mPangoContext);
+
+ gchar *text = g_utf16_to_utf8(aString, aLength,
+ NULL, NULL, NULL);
+
+ if (!text) {
+#ifdef DEBUG
+ NS_WARNING("nsFontMetricsPango::DrawString invalid unicode to follow");
+ DUMP_PRUNICHAR(aString, aLength)
+#endif
+ rv = NS_ERROR_FAILURE;
+ goto loser;
+ }
+
+ pango_layout_set_text(layout, text, strlen(text));
+
+ aContext->GetTranMatrix()->TransformCoord(&x, &y);
+
+ PangoLayoutLine *line;
+ if (pango_layout_get_line_count(layout) != 1) {
+ printf("Warning: more than one line!\n");
+ }
+ line = pango_layout_get_line(layout, 0);
+
+ if (aSpacing && *aSpacing) {
+ DrawStringSlowly(text, aString, aLength, aSurface->GetDrawable(),
+ gc, x, y, line, aSpacing);
+ }
+ else {
+ gdk_draw_layout_line(aSurface->GetDrawable(), gc,
+ x, y,
+ line);
+ }
+
+ loser:
+
+ g_free(text);
+ g_object_unref(gc);
+ g_object_unref(layout);
+
+ // printf("DrawString\n");
+
+ return rv;
+}
+
+#ifdef MOZ_MATHML
+nsresult
+nsFontMetricsPango::GetBoundingMetrics(const char *aString, PRUint32 aLength,
+ nsBoundingMetrics &aBoundingMetrics,
+ nsRenderingContextGTK *aContext)
+{
+ printf("GetBoundingMetrics (char *)\n");
+ return NS_ERROR_FAILURE;
+}
+
+nsresult
+nsFontMetricsPango::GetBoundingMetrics(const PRUnichar *aString,
+ PRUint32 aLength,
+ nsBoundingMetrics &aBoundingMetrics,
+ PRInt32 *aFontID,
+ nsRenderingContextGTK *aContext)
+{
+ nsresult rv = NS_OK;
+ PangoLayout *layout = pango_layout_new(mPangoContext);
+
+ gchar *text = g_utf16_to_utf8(aString, aLength,
+ NULL, NULL, NULL);
+
+ if (!text) {
+#ifdef DEBUG
+ NS_WARNING("nsFontMetricsPango::GetBoundingMetrics invalid unicode to follow");
+ DUMP_PRUNICHAR(aString, aLength)
+#endif
+ aBoundingMetrics.leftBearing = 0;
+ aBoundingMetrics.rightBearing = 0;
+ aBoundingMetrics.width = 0;
+ aBoundingMetrics.ascent = 0;
+ aBoundingMetrics.descent = 0;
+
+ rv = NS_ERROR_FAILURE;
+ goto loser;
+ }
+
+ pango_layout_set_text(layout, text, strlen(text));
+
+ // Get the logical extents
+ PangoLayoutLine *line;
+ if (pango_layout_get_line_count(layout) != 1) {
+ printf("Warning: more than one line!\n");
+ }
+ line = pango_layout_get_line(layout, 0);
+
+ // Get the ink extents
+ PangoRectangle rect;
+ pango_layout_line_get_extents(line, NULL, &rect);
+
+ float P2T;
+ P2T = mDeviceContext->DevUnitsToAppUnits();
+
+ aBoundingMetrics.leftBearing =
+ NSToCoordRound(rect.x / PANGO_SCALE * P2T);
+ aBoundingMetrics.rightBearing =
+ NSToCoordRound(rect.width / PANGO_SCALE * P2T);
+ aBoundingMetrics.width = NSToCoordRound((rect.x + rect.width) / PANGO_SCALE * P2T);
+ aBoundingMetrics.ascent = NSToCoordRound(rect.y / PANGO_SCALE * P2T);
+ aBoundingMetrics.descent = NSToCoordRound(rect.height / PANGO_SCALE * P2T);
+
+ loser:
+ g_free(text);
+ g_object_unref(layout);
+
+ return rv;
+}
+
+#endif /* MOZ_MATHML */
+
+GdkFont*
+nsFontMetricsPango::GetCurrentGDKFont(void)
+{
+ return nsnull;
+}
+
+nsresult
+nsFontMetricsPango::SetRightToLeftText(PRBool aIsRTL)
+{
+ if (aIsRTL) {
+ if (!mRTLPangoContext) {
+ mRTLPangoContext = pango_xft_get_context(GDK_DISPLAY(), 0);
+ pango_context_set_base_dir(mRTLPangoContext, PANGO_DIRECTION_RTL);
+
+ gdk_pango_context_set_colormap(mRTLPangoContext, gdk_rgb_get_cmap());
+ pango_context_set_language(mRTLPangoContext, GetPangoLanguage(mLangGroup));
+ pango_context_set_font_description(mRTLPangoContext, mPangoFontDesc);
+ }
+ mPangoContext = mRTLPangoContext;
+ }
+ else {
+ mPangoContext = mLTRPangoContext;
+ }
+
+ mIsRTL = aIsRTL;
+ return NS_OK;
+}
+
+/* static */
+PRUint32
+nsFontMetricsPango::GetHints(void)
+{
+ return (NS_RENDERING_HINT_BIDI_REORDERING |
+ NS_RENDERING_HINT_ARABIC_SHAPING |
+ NS_RENDERING_HINT_FAST_MEASURE);
+}
+
+/* static */
+nsresult
+nsFontMetricsPango::FamilyExists(nsIDeviceContext *aDevice,
+ const nsString &aName)
+{
+ if (!IsASCIIFontName(aName))
+ return NS_ERROR_FAILURE;
+
+ NS_ConvertUCS2toUTF8 name(aName);
+
+ nsresult rv = NS_ERROR_FAILURE;
+ PangoContext *context = pango_xft_get_context(GDK_DISPLAY(), 0);
+ PangoFontFamily **familyList;
+ int n;
+
+ pango_context_list_families(context, &familyList, &n);
+
+ for (int i=0; i < n; i++) {
+ const char *tmpname = pango_font_family_get_name(familyList[i]);
+ if (!Compare(nsDependentCString(tmpname), name,
+ nsCaseInsensitiveCStringComparator())) {
+ rv = NS_OK;
+ break;
+ }
+ }
+
+ g_free(familyList);
+ g_object_unref(context);
+
+ return rv;
+}
+
+// Private Methods
+
+nsresult
+nsFontMetricsPango::RealizeFont(void)
+{
+ nsCString familyList;
+ // Create and fill out the font description.
+ mPangoFontDesc = pango_font_description_new();
+
+ // Add CSS names - walk the list of fonts, adding the generic as
+ // the last font
+ for (int i=0; i < mFontList.Count(); ++i) {
+ // if this was a generic name, break out of the loop since we
+ // don't want to add it to the pattern yet
+ if (mFontIsGeneric[i])
+ break;;
+
+ nsCString *familyName = mFontList.CStringAt(i);
+ familyList.Append(familyName->get());
+ familyList.Append(',');
+ }
+
+ // If there's a generic add a pref for the generic if there's one
+ // set.
+ if (mGenericFont && !mFont->systemFont) {
+ nsCString name;
+ name += "font.name.";
+ name += mGenericFont->get();
+ name += ".";
+
+ nsString langGroup;
+ mLangGroup->ToString(langGroup);
+
+ name.AppendWithConversion(langGroup);
+
+ nsCOMPtr<nsIPref> pref;
+ pref = do_GetService(NS_PREF_CONTRACTID);
+ if (pref) {
+ nsresult rv;
+ nsXPIDLCString value;
+ rv = pref->GetCharPref(name.get(), getter_Copies(value));
+
+ // we ignore prefs that have three hypens since they are X
+ // style prefs.
+ if (FFRECountHyphens(value) < 3) {
+ nsCString tmpstr;
+ tmpstr.Append(value);
+
+ familyList.Append(tmpstr);
+ familyList.Append(',');
+ }
+ }
+ }
+
+ // Add the generic if there is one.
+ if (mGenericFont && !mFont->systemFont) {
+ familyList.Append(mGenericFont->get());
+ familyList.Append(',');
+ }
+
+ // Set the family
+ pango_font_description_set_family(mPangoFontDesc,
+ familyList.get());
+
+ // Set the point size
+ pango_font_description_set_size(mPangoFontDesc,
+ (gint)(mPointSize * PANGO_SCALE));
+
+ // Set the style
+ pango_font_description_set_style(mPangoFontDesc,
+ CalculateStyle(mFont->style));
+
+ // Set the weight
+ pango_font_description_set_weight(mPangoFontDesc,
+ CalculateWeight(mFont->weight));
+
+ // Now that we have the font description set up, create the
+ // context.
+ mLTRPangoContext = pango_xft_get_context(GDK_DISPLAY(), 0);
+ mPangoContext = mLTRPangoContext;
+
+ // Set the color map so we can draw later.
+ gdk_pango_context_set_colormap(mPangoContext, gdk_rgb_get_cmap());
+
+ // Set the pango language now that we have a context
+ pango_context_set_language(mPangoContext, GetPangoLanguage(mLangGroup));
+
+ // And attach the font description to this context
+ pango_context_set_font_description(mPangoContext, mPangoFontDesc);
+
+ return NS_OK;
+}
+
+/* static */
+PRBool
+nsFontMetricsPango::EnumFontCallback(const nsString &aFamily,
+ PRBool aIsGeneric, void *aData)
+{
+ // make sure it's an ascii name, if not then return and continue
+ // enumerating
+ if (!IsASCIIFontName(aFamily))
+ return PR_TRUE;
+
+ nsCAutoString name;
+ name.AssignWithConversion(aFamily.get());
+ ToLowerCase(name);
+ nsFontMetricsPango *metrics = (nsFontMetricsPango *)aData;
+ metrics->mFontList.AppendCString(name);
+ metrics->mFontIsGeneric.AppendElement((void *)aIsGeneric);
+ if (aIsGeneric) {
+ metrics->mGenericFont =
+ metrics->mFontList.CStringAt(metrics->mFontList.Count() - 1);
+ return PR_FALSE; // stop processing
+ }
+
+ return PR_TRUE; // keep processing
+}
+
+/*
+ * This is only used when there's per-character spacing happening.
+ * Well, really it can be either line or character spacing but it's
+ * just turtles all the way down!
+ */
+
+void
+nsFontMetricsPango::DrawStringSlowly(const gchar *aText,
+ const PRUnichar *aOrigString,
+ PRUint32 aLength,
+ GdkDrawable *aDrawable,
+ GdkGC *aGC, gint aX, gint aY,
+ PangoLayoutLine *aLine,
+ const nscoord *aSpacing)
+{
+ float app2dev;
+ app2dev = mDeviceContext->AppUnitsToDevUnits();
+ gint offset = 0;
+
+ /*
+ * We walk the list of glyphs returned in each layout run,
+ * matching up the glyphs with the characters in the source text.
+ * We use the aSpacing argument to figure out where to place those
+ * glyphs. It's important to note that since the string we're
+ * working with is in UTF-8 while the spacing argument assumes
+ * that offset will be part of the UTF-16 string. Logical
+ * attributes in pango are in byte offsets in the UTF-8 string, so
+ * we need to store the offsets based on the UTF-8 string.
+ */
+ nscoord *utf8spacing = new nscoord[strlen(aText)];
+
+ if (aOrigString) {
+ const gchar *curChar = aText;
+ bzero(utf8spacing, sizeof(nscoord) * strlen(aText));
+
+ // Covert the utf16 spacing offsets to utf8 spacing offsets
+ for (PRUint32 curOffset=0; curOffset < aLength;
+ curOffset++, curChar = g_utf8_find_next_char(curChar, NULL)) {
+ utf8spacing[curChar - aText] = aSpacing[curOffset];
+
+ if (IS_HIGH_SURROGATE(aOrigString[curOffset]))
+ curOffset++;
+ }
+ }
+ else {
+ memcpy(utf8spacing, aSpacing, (sizeof(nscoord *) * aLength));
+ }
+
+ gint curRun = 0;
+
+ for (GSList *tmpList = aLine->runs; tmpList && tmpList->data;
+ tmpList = tmpList->next, curRun++) {
+ PangoLayoutRun *layoutRun = (PangoLayoutRun *)tmpList->data;
+ gint tmpOffset = 0;
+
+ /* printf(" Rendering run %d: \"%s\"\n", curRun,
+ &aText[layoutRun->item->offset]); */
+
+ for (gint i=0; i < layoutRun->glyphs->num_glyphs; i++) {
+ /* printf("glyph %d offset %d orig width %d new width %d\n", i,
+ * layoutRun->glyphs->log_clusters[i] + layoutRun->item->offset,
+ * layoutRun->glyphs->glyphs[i].geometry.width,
+ * (gint)(utf8spacing[layoutRun->glyphs->log_clusters[i] + layoutRun->item->offset] * app2dev * PANGO_SCALE));
+ */
+ gint thisOffset = (gint)(utf8spacing[layoutRun->glyphs->log_clusters[i] + layoutRun->item->offset]
+ * app2dev * PANGO_SCALE);
+ layoutRun->glyphs->glyphs[i].geometry.width = thisOffset;
+ tmpOffset += thisOffset;
+ }
+
+ /* printf(" rendering at X coord %d\n", aX + offset); */
+
+ gdk_draw_glyphs(aDrawable, aGC, layoutRun->item->analysis.font,
+ aX + (gint)(offset / PANGO_SCALE), aY, layoutRun->glyphs);
+
+ offset += tmpOffset;
+ }
+
+ delete[] utf8spacing;
+}
+
+nsresult
+nsFontMetricsPango::GetTextDimensionsInternal(const gchar* aString,
+ PRInt32 aLength,
+ PRInt32 aAvailWidth,
+ PRInt32* aBreaks,
+ PRInt32 aNumBreaks,
+ nsTextDimensions& aDimensions,
+ PRInt32& aNumCharsFit,
+ nsTextDimensions& aLastWordDimensions,
+ nsRenderingContextGTK *aContext)
+{
+ NS_PRECONDITION(aBreaks[aNumBreaks - 1] == aLength, "invalid break array");
+
+ // If we need to back up this state represents the last place
+ // we could break. We can use this to avoid remeasuring text
+ PRInt32 prevBreakState_BreakIndex = -1; // not known
+ // (hasn't been computed)
+ nscoord prevBreakState_Width = 0; // accumulated width to this point
+
+ // Initialize OUT parameters
+ GetMaxAscent(aLastWordDimensions.ascent);
+ GetMaxDescent(aLastWordDimensions.descent);
+ aLastWordDimensions.width = -1;
+ aNumCharsFit = 0;
+
+ // Iterate each character in the string and determine which font to use
+ nscoord width = 0;
+ PRInt32 start = 0;
+ nscoord aveCharWidth;
+ GetAveCharWidth(aveCharWidth);
+
+ while (start < aLength) {
+ // Estimate how many characters will fit. Do that by
+ // diving the available space by the average character
+ // width. Make sure the estimated number of characters is
+ // at least 1
+ PRInt32 estimatedNumChars = 0;
+
+ if (aveCharWidth > 0)
+ estimatedNumChars = (aAvailWidth - width) / aveCharWidth;
+
+ if (estimatedNumChars < 1)
+ estimatedNumChars = 1;
+
+ // Find the nearest break offset
+ PRInt32 estimatedBreakOffset = start + estimatedNumChars;
+ PRInt32 breakIndex;
+ nscoord numChars;
+
+ // Find the nearest place to break that is less than or equal to
+ // the estimated break offset
+ if (aLength <= estimatedBreakOffset) {
+ // All the characters should fit
+ numChars = aLength - start;
+ breakIndex = aNumBreaks - 1;
+ }
+ else {
+ breakIndex = prevBreakState_BreakIndex;
+ while (((breakIndex + 1) < aNumBreaks) &&
+ (aBreaks[breakIndex + 1] <= estimatedBreakOffset)) {
+ ++breakIndex;
+ }
+
+ if (breakIndex == prevBreakState_BreakIndex) {
+ ++breakIndex; // make sure we advanced past the
+ // previous break index
+ }
+
+ numChars = aBreaks[breakIndex] - start;
+ }
+
+ // Measure the text
+ nscoord twWidth = 0;
+ if ((1 == numChars) && (aString[start] == ' '))
+ GetSpaceWidth(twWidth);
+ else if (numChars > 0)
+ GetWidth(&aString[start], numChars, twWidth, aContext);
+
+ // See if the text fits
+ PRBool textFits = (twWidth + width) <= aAvailWidth;
+
+ // If the text fits then update the width and the number of
+ // characters that fit
+ if (textFits) {
+ aNumCharsFit += numChars;
+ width += twWidth;
+ start += numChars;
+
+ // This is a good spot to back up to if we need to so remember
+ // this state
+ prevBreakState_BreakIndex = breakIndex;
+ prevBreakState_Width = width;
+ }
+ else {
+ // See if we can just back up to the previous saved
+ // state and not have to measure any text
+ if (prevBreakState_BreakIndex > 0) {
+ // If the previous break index is just before the
+ // current break index then we can use it
+ if (prevBreakState_BreakIndex == (breakIndex - 1)) {
+ aNumCharsFit = aBreaks[prevBreakState_BreakIndex];
+ width = prevBreakState_Width;
+ break;
+ }
+ }
+
+ // We can't just revert to the previous break state
+ if (0 == breakIndex) {
+ // There's no place to back up to, so even though
+ // the text doesn't fit return it anyway
+ aNumCharsFit += numChars;
+ width += twWidth;
+ break;
+ }
+
+ // Repeatedly back up until we get to where the text
+ // fits or we're all the way back to the first word
+ width += twWidth;
+ while ((breakIndex >= 1) && (width > aAvailWidth)) {
+ twWidth = 0;
+ start = aBreaks[breakIndex - 1];
+ numChars = aBreaks[breakIndex] - start;
+
+ if ((1 == numChars) && (aString[start] == ' '))
+ GetSpaceWidth(twWidth);
+ else if (numChars > 0)
+ GetWidth(&aString[start], numChars, twWidth,
+ aContext);
+ width -= twWidth;
+ aNumCharsFit = start;
+ breakIndex--;
+ }
+ break;
+ }
+ }
+
+ aDimensions.width = width;
+ GetMaxAscent(aDimensions.ascent);
+ GetMaxDescent(aDimensions.descent);
+
+ /* printf("aDimensions %d %d %d aLastWordDimensions %d %d %d aNumCharsFit %d\n",
+ aDimensions.width, aDimensions.ascent, aDimensions.descent,
+ aLastWordDimensions.width, aLastWordDimensions.ascent, aLastWordDimensions.descent,
+ aNumCharsFit); */
+
+ return NS_OK;
+}
+
+/* static */
+PRBool
+IsASCIIFontName(const nsString& aName)
+{
+ PRUint32 len = aName.Length();
+ const PRUnichar* str = aName.get();
+ for (PRUint32 i = 0; i < len; i++) {
+ /*
+ * X font names are printable ASCII, ignore others (for now)
+ */
+ if ((str[i] < 0x20) || (str[i] > 0x7E)) {
+ return PR_FALSE;
+ }
+ }
+
+ return PR_TRUE;
+}
+
+/* static */
+int
+FFRECountHyphens (nsACString &aFFREName)
+{
+ int h = 0;
+ PRInt32 hyphen = 0;
+ while ((hyphen = aFFREName.FindChar('-', hyphen)) >= 0) {
+ ++h;
+ ++hyphen;
+ }
+ return h;
+}
+
+/* static */
+PangoLanguage *
+GetPangoLanguage(nsIAtom *aLangGroup)
+{
+ // Find the FC lang group for this lang group
+ nsCAutoString cname;
+ aLangGroup->ToUTF8String(cname);
+
+ // see if the lang group needs to be translated from mozilla's
+ // internal mapping into fontconfig's
+ const struct MozPangoLangGroup *langGroup;
+ langGroup = FindPangoLangGroup(cname);
+
+ // if there's no lang group, just use the lang group as it was
+ // passed to us
+ //
+ // we're casting away the const here for the strings - should be
+ // safe.
+ if (!langGroup)
+ return pango_language_from_string(cname.get());
+ else if (langGroup->PangoLang)
+ return pango_language_from_string(langGroup->PangoLang);
+
+ return pango_language_from_string("en");
+}
+
+/* static */
+const MozPangoLangGroup*
+FindPangoLangGroup (nsACString &aLangGroup)
+{
+ for (unsigned int i=0; i < NUM_PANGO_LANG_GROUPS; ++i) {
+ if (aLangGroup.Equals(MozPangoLangGroups[i].mozLangGroup,
+ nsCaseInsensitiveCStringComparator())) {
+ return &MozPangoLangGroups[i];
+ }
+ }
+
+ return nsnull;
+}
+
+/* static */
+void
+FreeGlobals(void)
+{
+}
+
+/* static */
+PangoStyle
+CalculateStyle(PRUint8 aStyle)
+{
+ switch(aStyle) {
+ case NS_FONT_STYLE_ITALIC:
+ return PANGO_STYLE_OBLIQUE;
+ break;
+ case NS_FONT_STYLE_OBLIQUE:
+ return PANGO_STYLE_OBLIQUE;
+ break;
+ }
+
+ return PANGO_STYLE_NORMAL;
+}
+
+/* static */
+PangoWeight
+CalculateWeight (PRUint16 aWeight)
+{
+ /*
+ * weights come in two parts crammed into one
+ * integer -- the "base" weight is weight / 100,
+ * the rest of the value is the "offset" from that
+ * weight -- the number of steps to move to adjust
+ * the weight in the list of supported font weights,
+ * this value can be negative or positive.
+ */
+ PRInt32 baseWeight = (aWeight + 50) / 100;
+ PRInt32 offset = aWeight - baseWeight * 100;
+
+ /* clip weights to range 0 to 9 */
+ if (baseWeight < 0)
+ baseWeight = 0;
+ if (baseWeight > 9)
+ baseWeight = 9;
+
+ /* Map from weight value to fcWeights index */
+ static int fcWeightLookup[10] = {
+ 0, 0, 0, 0, 1, 1, 2, 3, 3, 4,
+ };
+
+ PRInt32 fcWeight = fcWeightLookup[baseWeight];
+
+ /*
+ * adjust by the offset value, make sure we stay inside the
+ * fcWeights table
+ */
+ fcWeight += offset;
+
+ if (fcWeight < 0)
+ fcWeight = 0;
+ if (fcWeight > 4)
+ fcWeight = 4;
+
+ /* Map to final PANGO_WEIGHT value */
+ static int fcWeights[5] = {
+ 349,
+ 499,
+ 649,
+ 749,
+ 999
+ };
+
+ return (PangoWeight)fcWeights[fcWeight];
+}
+
+/* static */
+nsresult
+EnumFontsPango(nsIAtom* aLangGroup, const char* aGeneric,
+ PRUint32* aCount, PRUnichar*** aResult)
+{
+ FcPattern *pat = NULL;
+ FcObjectSet *os = NULL;
+ FcFontSet *fs = NULL;
+ nsresult rv = NS_ERROR_FAILURE;
+
+ PRUnichar **array = NULL;
+ PRUint32 narray = 0;
+ PRInt32 serif = 0, sansSerif = 0, monospace = 0, nGenerics;
+
+ *aCount = 0;
+ *aResult = nsnull;
+
+ pat = FcPatternCreate();
+ if (!pat)
+ goto end;
+
+ os = FcObjectSetBuild(FC_FAMILY, FC_FOUNDRY, 0);
+ if (!os)
+ goto end;
+
+ // take the pattern and add the lang group to it
+ if (aLangGroup)
+ AddLangGroup(pat, aLangGroup);
+
+ // get the font list
+ fs = FcFontList(0, pat, os);
+
+ if (!fs)
+ goto end;
+
+ if (!fs->nfont) {
+ rv = NS_OK;
+ goto end;
+ }
+
+ // Fontconfig supports 3 generic fonts, "serif", "sans-serif", and
+ // "monospace", slightly different from CSS's 5.
+ if (!aGeneric)
+ serif = sansSerif = monospace = 1;
+ else if (!strcmp(aGeneric, "serif"))
+ serif = 1;
+ else if (!strcmp(aGeneric, "sans-serif"))
+ sansSerif = 1;
+ else if (!strcmp(aGeneric, "monospace"))
+ monospace = 1;
+ else if (!strcmp(aGeneric, "cursive") || !strcmp(aGeneric, "fantasy"))
+ serif = sansSerif = 1;
+ else
+ NS_NOTREACHED("unexpected generic family");
+ nGenerics = serif + sansSerif + monospace;
+
+ array = NS_STATIC_CAST(PRUnichar **,
+ nsMemory::Alloc((fs->nfont + nGenerics) * sizeof(PRUnichar *)));
+ if (!array)
+ goto end;
+
+ if (serif) {
+ PRUnichar *name = ToNewUnicode(NS_LITERAL_STRING("serif"));
+ if (!name)
+ goto end;
+ array[narray++] = name;
+ }
+
+ if (sansSerif) {
+ PRUnichar *name = ToNewUnicode(NS_LITERAL_STRING("sans-serif"));
+ if (!name)
+ goto end;
+ array[narray++] = name;
+ }
+
+ if (monospace) {
+ PRUnichar *name = ToNewUnicode(NS_LITERAL_STRING("monospace"));
+ if (!name)
+ goto end;
+ array[narray++] = name;
+ }
+
+ for (int i=0; i < fs->nfont; ++i) {
+ char *family;
+ PRUnichar *name;
+
+ // if there's no family, just move to the next iteration
+ if (FcPatternGetString (fs->fonts[i], FC_FAMILY, 0,
+ (FcChar8 **) &family) != FcResultMatch) {
+ continue;
+ }
+
+ name = NS_STATIC_CAST(PRUnichar *,
+ nsMemory::Alloc ((strlen (family) + 1)
+ * sizeof (PRUnichar)));
+
+ if (!name)
+ goto end;
+
+ PRUnichar *r = name;
+ for (char *f = family; *f; ++f)
+ *r++ = *f;
+ *r = '\0';
+
+ array[narray++] = name;
+ }
+
+ NS_QuickSort(array + nGenerics, narray - nGenerics, sizeof (PRUnichar*),
+ CompareFontNames, nsnull);
+
+ *aCount = narray;
+ if (narray)
+ *aResult = array;
+ else
+ nsMemory::Free(array);
+
+ rv = NS_OK;
+
+ end:
+ if (NS_FAILED(rv) && array) {
+ while (narray)
+ nsMemory::Free (array[--narray]);
+ nsMemory::Free (array);
+ }
+ if (pat)
+ FcPatternDestroy(pat);
+ if (os)
+ FcObjectSetDestroy(os);
+ if (fs)
+ FcFontSetDestroy(fs);
+
+ return rv;
+}
+
+/* static */
+int
+CompareFontNames (const void* aArg1, const void* aArg2, void* aClosure)
+{
+ const PRUnichar* str1 = *((const PRUnichar**) aArg1);
+ const PRUnichar* str2 = *((const PRUnichar**) aArg2);
+
+ return nsCRT::strcmp(str1, str2);
+}
+
+
+// nsFontEnumeratorPango class
+
+nsFontEnumeratorPango::nsFontEnumeratorPango()
+{
+}
+
+NS_IMPL_ISUPPORTS1(nsFontEnumeratorPango, nsIFontEnumerator)
+
+NS_IMETHODIMP
+nsFontEnumeratorPango::EnumerateAllFonts(PRUint32 *aCount,
+ PRUnichar ***aResult)
+{
+ NS_ENSURE_ARG_POINTER(aResult);
+ *aResult = nsnull;
+ NS_ENSURE_ARG_POINTER(aCount);
+ *aCount = 0;
+
+ return EnumFontsPango(nsnull, nsnull, aCount, aResult);
+}
+
+NS_IMETHODIMP
+nsFontEnumeratorPango::EnumerateFonts(const char *aLangGroup,
+ const char *aGeneric,
+ PRUint32 *aCount,
+ PRUnichar ***aResult)
+{
+ NS_ENSURE_ARG_POINTER(aResult);
+ *aResult = nsnull;
+ NS_ENSURE_ARG_POINTER(aCount);
+ *aCount = 0;
+
+ // aLangGroup=null or "" means any (i.e., don't care)
+ // aGeneric=null or "" means any (i.e, don't care)
+ nsCOMPtr<nsIAtom> langGroup;
+ if (aLangGroup && *aLangGroup)
+ langGroup = do_GetAtom(aLangGroup);
+ const char* generic = nsnull;
+ if (aGeneric && *aGeneric)
+ generic = aGeneric;
+
+ return EnumFontsPango(langGroup, generic, aCount, aResult);
+}
+
+NS_IMETHODIMP
+nsFontEnumeratorPango::HaveFontFor(const char *aLangGroup,
+ PRBool *aResult)
+{
+ NS_ENSURE_ARG_POINTER(aResult);
+ *aResult = PR_FALSE;
+ NS_ENSURE_ARG_POINTER(aLangGroup);
+
+ *aResult = PR_TRUE; // always return true for now.
+ // Finish me - ftang
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFontEnumeratorPango::GetDefaultFont(const char *aLangGroup,
+ const char *aGeneric,
+ PRUnichar **aResult)
+{
+ NS_ENSURE_ARG_POINTER(aResult);
+ *aResult = nsnull;
+
+ // Have a look at nsFontEnumeratorXft::GetDefaultFont for some
+ // possible code for this function.
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFontEnumeratorPango::UpdateFontList(PRBool *_retval)
+{
+ *_retval = PR_FALSE; // always return false for now
+ return NS_OK;
+}
--- mozilla/gfx/src/gtk/nsRenderingContextGTK.h.foo 2003-02-24 21:38:34.000000000 -0500
+++ mozilla/gfx/src/gtk/nsRenderingContextGTK.h 2004-10-18 22:49:40.000000000 -0400
@@ -194,6 +194,8 @@
const nsRect &aDestBounds, PRUint32 aCopyFlags);
NS_IMETHOD RetrieveCurrentNativeGraphicData(PRUint32 * ngd);
+ NS_IMETHOD SetRightToLeftText(PRBool aIsRTL);
+
NS_IMETHOD DrawImage(imgIContainer *aImage, const nsRect * aSrcRect, const nsPoint * aDestPoint);
NS_IMETHOD DrawScaledImage(imgIContainer *aImage, const nsRect * aSrcRect, const nsRect * aDestRect);
--- /dev/null 2004-02-18 10:26:44.000000000 -0500
+++ mozilla/gfx/src/gtk/nsFontMetricsPango.h 2004-10-18 22:49:40.000000000 -0400
@@ -0,0 +1,278 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:expandtab:shiftwidth=4:tabstop=4:
+ */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code Christopher Blizzard
+ * <blizzard@mozilla.org>. Portions created by the Initial Developer
+ * are Copyright (C) 2002 the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsIFontMetrics.h"
+#include "nsIFontEnumerator.h"
+#include "nsCRT.h"
+#include "nsIAtom.h"
+#include "nsString.h"
+#include "nsVoidArray.h"
+#include "nsIFontMetricsGTK.h"
+
+#include <pango/pango.h>
+
+class nsFontMetricsPango : public nsIFontMetricsGTK
+{
+public:
+ nsFontMetricsPango();
+ virtual ~nsFontMetricsPango();
+
+ NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
+
+ // nsISupports
+ NS_DECL_ISUPPORTS
+
+ // nsIFontMetrics
+ NS_IMETHOD Init (const nsFont& aFont, nsIAtom* aLangGroup,
+ nsIDeviceContext *aContext);
+ NS_IMETHOD Destroy();
+ NS_IMETHOD GetFont (const nsFont *&aFont);
+ NS_IMETHOD GetLangGroup (nsIAtom** aLangGroup);
+ NS_IMETHOD GetFontHandle (nsFontHandle &aHandle);
+
+ NS_IMETHOD GetXHeight (nscoord& aResult)
+ { aResult = mXHeight; return NS_OK; };
+
+ NS_IMETHOD GetSuperscriptOffset (nscoord& aResult)
+ { aResult = mSuperscriptOffset;
+ return NS_OK; };
+
+ NS_IMETHOD GetSubscriptOffset (nscoord& aResult)
+ { aResult = mSubscriptOffset;
+ return NS_OK; };
+
+ NS_IMETHOD GetStrikeout (nscoord& aOffset, nscoord& aSize)
+ { aOffset = mStrikeoutOffset;
+ aSize = mStrikeoutSize;
+ return NS_OK; };
+
+ NS_IMETHOD GetUnderline (nscoord& aOffset, nscoord& aSize)
+ { aOffset = mUnderlineOffset;
+ aSize = mUnderlineSize;
+ return NS_OK; };
+
+ NS_IMETHOD GetHeight (nscoord &aHeight)
+ { aHeight = mMaxHeight;
+ return NS_OK; };
+
+ NS_IMETHOD GetNormalLineHeight (nscoord &aHeight)
+ { aHeight = mEmHeight + mLeading;
+ return NS_OK; };
+
+ NS_IMETHOD GetLeading (nscoord &aLeading)
+ { aLeading = mLeading;
+ return NS_OK; };
+
+ NS_IMETHOD GetEmHeight (nscoord &aHeight)
+ { aHeight = mEmHeight;
+ return NS_OK; };
+
+ NS_IMETHOD GetEmAscent (nscoord &aAscent)
+ { aAscent = mEmAscent;
+ return NS_OK; };
+
+ NS_IMETHOD GetEmDescent (nscoord &aDescent)
+ { aDescent = mEmDescent;
+ return NS_OK; };
+
+ NS_IMETHOD GetMaxHeight (nscoord &aHeight)
+ { aHeight = mMaxHeight;
+ return NS_OK; };
+
+ NS_IMETHOD GetMaxAscent (nscoord &aAscent)
+ { aAscent = mMaxAscent;
+ return NS_OK; };
+
+ NS_IMETHOD GetMaxDescent (nscoord &aDescent)
+ { aDescent = mMaxDescent;
+ return NS_OK; };
+
+ NS_IMETHOD GetMaxAdvance (nscoord &aAdvance)
+ { aAdvance = mMaxAdvance;
+ return NS_OK; };
+
+ NS_IMETHOD GetSpaceWidth (nscoord &aSpaceCharWidth)
+ { aSpaceCharWidth = mSpaceWidth;
+ return NS_OK; };
+
+ NS_IMETHOD GetAveCharWidth (nscoord &aAveCharWidth)
+ { aAveCharWidth = mAveCharWidth;
+ return NS_OK; };
+
+ // nsIFontMetricsGTK (calls from the font rendering layer)
+ virtual nsresult GetWidth(const char* aString, PRUint32 aLength,
+ nscoord& aWidth,
+ nsRenderingContextGTK *aContext);
+ virtual nsresult GetWidth(const PRUnichar* aString, PRUint32 aLength,
+ nscoord& aWidth, PRInt32 *aFontID,
+ nsRenderingContextGTK *aContext);
+
+ virtual nsresult GetTextDimensions(const PRUnichar* aString,
+ PRUint32 aLength,
+ nsTextDimensions& aDimensions,
+ PRInt32* aFontID,
+ nsRenderingContextGTK *aContext);
+ virtual nsresult GetTextDimensions(const char* aString,
+ PRInt32 aLength,
+ PRInt32 aAvailWidth,
+ PRInt32* aBreaks,
+ PRInt32 aNumBreaks,
+ nsTextDimensions& aDimensions,
+ PRInt32& aNumCharsFit,
+ nsTextDimensions& aLastWordDimensions,
+ PRInt32* aFontID,
+ nsRenderingContextGTK *aContext);
+ virtual nsresult GetTextDimensions(const PRUnichar* aString,
+ PRInt32 aLength,
+ PRInt32 aAvailWidth,
+ PRInt32* aBreaks,
+ PRInt32 aNumBreaks,
+ nsTextDimensions& aDimensions,
+ PRInt32& aNumCharsFit,
+ nsTextDimensions& aLastWordDimensions,
+ PRInt32* aFontID,
+ nsRenderingContextGTK *aContext);
+
+ virtual nsresult DrawString(const char *aString, PRUint32 aLength,
+ nscoord aX, nscoord aY,
+ const nscoord* aSpacing,
+ nsRenderingContextGTK *aContext,
+ nsDrawingSurfaceGTK *aSurface);
+ virtual nsresult DrawString(const PRUnichar* aString, PRUint32 aLength,
+ nscoord aX, nscoord aY,
+ PRInt32 aFontID,
+ const nscoord* aSpacing,
+ nsRenderingContextGTK *aContext,
+ nsDrawingSurfaceGTK *aSurface);
+
+#ifdef MOZ_MATHML
+ virtual nsresult GetBoundingMetrics(const char *aString, PRUint32 aLength,
+ nsBoundingMetrics &aBoundingMetrics,
+ nsRenderingContextGTK *aContext);
+ virtual nsresult GetBoundingMetrics(const PRUnichar *aString,
+ PRUint32 aLength,
+ nsBoundingMetrics &aBoundingMetrics,
+ PRInt32 *aFontID,
+ nsRenderingContextGTK *aContext);
+#endif /* MOZ_MATHML */
+
+ virtual GdkFont* GetCurrentGDKFont(void);
+
+ virtual nsresult SetRightToLeftText(PRBool aIsRTL);
+
+ // get hints for the font
+ static PRUint32 GetHints (void);
+
+ // drawing surface methods
+ static nsresult FamilyExists (nsIDeviceContext *aDevice,
+ const nsString &aName);
+
+private:
+
+ // generic font metrics class bits
+ nsCStringArray mFontList;
+ nsAutoVoidArray mFontIsGeneric;
+
+ nsIDeviceContext *mDeviceContext;
+ nsCOMPtr<nsIAtom> mLangGroup;
+ nsCString *mGenericFont;
+ nsFont *mFont;
+ float mPointSize;
+
+ nsCAutoString mDefaultFont;
+
+ // Pango-related items
+ PangoFontDescription *mPangoFontDesc;
+ PangoContext *mPangoContext;
+ PangoContext *mLTRPangoContext;
+ PangoContext *mRTLPangoContext;
+ PangoAttrList *mPangoAttrList;
+ PRBool mIsRTL;
+
+ // Cached font metrics
+ nscoord mXHeight;
+ nscoord mSuperscriptOffset;
+ nscoord mSubscriptOffset;
+ nscoord mStrikeoutOffset;
+ nscoord mStrikeoutSize;
+ nscoord mUnderlineOffset;
+ nscoord mUnderlineSize;
+ nscoord mMaxHeight;
+ nscoord mLeading;
+ nscoord mEmHeight;
+ nscoord mEmAscent;
+ nscoord mEmDescent;
+ nscoord mMaxAscent;
+ nscoord mMaxDescent;
+ nscoord mMaxAdvance;
+ nscoord mSpaceWidth;
+ nscoord mAveCharWidth;
+
+ // Private methods
+ nsresult RealizeFont(void);
+ nsresult CacheFontMetrics(void);
+
+ static PRBool EnumFontCallback(const nsString &aFamily,
+ PRBool aIsGeneric, void *aData);
+
+ void DrawStringSlowly(const gchar *aText,
+ const PRUnichar *aOrigString,
+ PRUint32 aLength,
+ GdkDrawable *aDrawable,
+ GdkGC *aGC, gint aX, gint aY,
+ PangoLayoutLine *aLine,
+ const nscoord *aSpacing);
+
+ nsresult GetTextDimensionsInternal(const gchar* aString,
+ PRInt32 aLength,
+ PRInt32 aAvailWidth,
+ PRInt32* aBreaks,
+ PRInt32 aNumBreaks,
+ nsTextDimensions& aDimensions,
+ PRInt32& aNumCharsFit,
+ nsTextDimensions& aLastWordDimensions,
+ nsRenderingContextGTK *aContext);
+};
+
+class nsFontEnumeratorPango : public nsIFontEnumerator
+{
+public:
+ nsFontEnumeratorPango();
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSIFONTENUMERATOR
+};
--- mozilla/gfx/src/gtk/nsFontMetricsUtils.h.foo 2002-10-11 22:03:32.000000000 -0400
+++ mozilla/gfx/src/gtk/nsFontMetricsUtils.h 2004-10-18 22:49:40.000000000 -0400
@@ -42,9 +42,12 @@
extern PRUint32 NS_FontMetricsGetHints (void);
extern nsresult NS_FontMetricsFamilyExists(nsIDeviceContext *aDevice,
const nsString &aName);
-
#ifdef MOZ_ENABLE_XFT
extern PRBool NS_IsXftEnabled(void);
#endif
+#ifdef MOZ_ENABLE_PANGO
+extern PRBool NS_IsPangoEnabled(void);
+#endif
+
#endif /* __nsFontMetricsUtils_h */
--- mozilla/gfx/src/gtk/nsIFontMetricsGTK.h.foo 2002-10-11 23:00:17.000000000 -0400
+++ mozilla/gfx/src/gtk/nsIFontMetricsGTK.h 2004-10-18 22:49:40.000000000 -0400
@@ -121,6 +121,9 @@
// particular handle.
virtual GdkFont* GetCurrentGDKFont(void) = 0;
+ // Set the direction of the text rendering
+ virtual nsresult SetRightToLeftText(PRBool aIsRTL) = 0;
+
};
#endif /* __nsIFontMetricsGTK_h */
--- mozilla/gfx/src/gtk/nsRenderingContextGTK.cpp.foo 2004-02-12 11:52:22.000000000 -0500
+++ mozilla/gfx/src/gtk/nsRenderingContextGTK.cpp 2004-10-18 22:49:40.000000000 -0400
@@ -524,6 +524,9 @@
values.foreground.pixel =
gdk_rgb_xpixel_from_rgb(NS_TO_GDK_RGB(mCurrentColor));
+ values.foreground.red = (NS_GET_R(mCurrentColor) << 8) | NS_GET_R(mCurrentColor);
+ values.foreground.green = (NS_GET_G(mCurrentColor) << 8) | NS_GET_G(mCurrentColor);
+ values.foreground.blue = (NS_GET_B(mCurrentColor) << 8) | NS_GET_B(mCurrentColor);
valuesMask = GDK_GC_FOREGROUND;
#ifdef MOZ_ENABLE_COREXFONTS
@@ -1438,6 +1441,11 @@
#endif /* MOZ_MATHML */
+NS_IMETHODIMP nsRenderingContextGTK::SetRightToLeftText(PRBool aIsRTL)
+{
+ return mFontMetrics->SetRightToLeftText(aIsRTL);
+}
+
NS_IMETHODIMP nsRenderingContextGTK::DrawImage(imgIContainer *aImage, const nsRect * aSrcRect, const nsPoint * aDestPoint)
{
UpdateGC();
--- mozilla/gfx/src/gtk/nsGCCache.cpp.foo 2002-02-02 22:47:15.000000000 -0500
+++ mozilla/gfx/src/gtk/nsGCCache.cpp 2004-10-18 22:49:40.000000000 -0400
@@ -232,98 +232,42 @@
// We have old GC, reuse it and check what
// we have to change
- XGCValues xvalues;
- unsigned long xvalues_mask=0;
+ GdkGCValues xvalues;
+ int xvalues_mask = 0;
if (entry->clipRegion) {
// set it to none here and then set the clip region with
// gdk_gc_set_clip_region in GetGC()
xvalues.clip_mask = None;
- xvalues_mask |= GCClipMask;
+ xvalues_mask |= GDK_GC_CLIP_MASK;
gdk_region_destroy(entry->clipRegion);
entry->clipRegion = NULL;
}
if (entry->gcv.foreground.pixel != gcv->foreground.pixel) {
- xvalues.foreground = gcv->foreground.pixel;
- xvalues_mask |= GCForeground;
+ xvalues.foreground.pixel = gcv->foreground.pixel;
+ xvalues_mask |= GDK_GC_FOREGROUND;
}
if (entry->gcv.function != gcv->function) {
- switch (gcv->function) {
- case GDK_COPY:
- xvalues.function = GXcopy;
- break;
- case GDK_INVERT:
- xvalues.function = GXinvert;
- break;
- case GDK_XOR:
- xvalues.function = GXxor;
- break;
- case GDK_CLEAR:
- xvalues.function = GXclear;
- break;
- case GDK_AND:
- xvalues.function = GXand;
- break;
- case GDK_AND_REVERSE:
- xvalues.function = GXandReverse;
- break;
- case GDK_AND_INVERT:
- xvalues.function = GXandInverted;
- break;
- case GDK_NOOP:
- xvalues.function = GXnoop;
- break;
- case GDK_OR:
- xvalues.function = GXor;
- break;
- case GDK_EQUIV:
- xvalues.function = GXequiv;
- break;
- case GDK_OR_REVERSE:
- xvalues.function = GXorReverse;
- break;
- case GDK_COPY_INVERT:
- xvalues.function = GXcopyInverted;
- break;
- case GDK_OR_INVERT:
- xvalues.function = GXorInverted;
- break;
- case GDK_NAND:
- xvalues.function = GXnand;
- break;
- case GDK_SET:
- xvalues.function = GXset;
- break;
- }
- xvalues_mask |= GCFunction;
+ xvalues.function = gcv->function;
+ xvalues_mask |= GDK_GC_FUNCTION;
}
if(entry->gcv.font != gcv->font && flags & GDK_GC_FONT) {
- xvalues.font = ((XFontStruct *)GDK_FONT_XFONT(gcv->font))->fid;
- xvalues_mask |= GCFont;
+ xvalues.font = gcv->font;
+ xvalues_mask |= GDK_GC_FONT;
}
if (entry->gcv.line_style != gcv->line_style) {
- switch (gcv->line_style) {
- case GDK_LINE_SOLID:
- xvalues.line_style = LineSolid;
- break;
- case GDK_LINE_ON_OFF_DASH:
- xvalues.line_style = LineOnOffDash;
- break;
- case GDK_LINE_DOUBLE_DASH:
- xvalues.line_style = LineDoubleDash;
- break;
- }
- xvalues_mask |= GCLineStyle;
+ xvalues.line_style = gcv->line_style;
+ xvalues_mask |= GDK_GC_LINE_STYLE;
}
if (xvalues_mask != 0) {
- XChangeGC(GDK_GC_XDISPLAY(entry->gc), GDK_GC_XGC(entry->gc),
- xvalues_mask, &xvalues);
+ gdk_gc_set_values(entry->gc, &xvalues, (GdkGCValuesMask)xvalues_mask);
}
+
entry->flags = flags;
entry->gcv = *gcv;
}
--- mozilla/gfx/src/gtk/nsFontMetricsGTK.cpp.foo 2004-03-09 09:14:54.000000000 -0500
+++ mozilla/gfx/src/gtk/nsFontMetricsGTK.cpp 2004-10-18 22:49:40.000000000 -0400
@@ -4600,6 +4600,12 @@
return mCurrentFont->GetGDKFont();
}
+nsresult
+nsFontMetricsGTK::SetRightToLeftText(PRBool aIsRTL)
+{
+ return NS_OK;
+}
+
PR_BEGIN_EXTERN_C
static int
CompareSizes(const void* aArg1, const void* aArg2, void *data)
--- mozilla/gfx/src/gtk/nsFontMetricsXft.h.foo 2004-02-23 16:38:52.000000000 -0500
+++ mozilla/gfx/src/gtk/nsFontMetricsXft.h 2004-10-18 22:49:40.000000000 -0400
@@ -202,6 +202,8 @@
virtual GdkFont* GetCurrentGDKFont(void);
+ virtual nsresult SetRightToLeftText(PRBool aIsRTL);
+
// get hints for the font
static PRUint32 GetHints (void);
--- mozilla/gfx/src/gtk/nsFontMetricsGTK.h.foo 2004-02-04 20:57:03.000000000 -0500
+++ mozilla/gfx/src/gtk/nsFontMetricsGTK.h 2004-10-18 22:49:40.000000000 -0400
@@ -344,6 +344,8 @@
virtual GdkFont* GetCurrentGDKFont(void);
+ virtual nsresult SetRightToLeftText(PRBool aIsRTL);
+
static nsresult FamilyExists(nsIDeviceContext *aDevice, const nsString& aName);
static PRUint32 GetHints(void);
--- mozilla/configure.in.foo 2004-05-25 22:25:16.000000000 -0400
+++ mozilla/configure.in 2004-10-18 22:49:40.000000000 -0400
@@ -3429,6 +3429,34 @@
AC_SUBST(MOZ_XFT_LIBS)
dnl ========================================================
+dnl = pango font rendering
+dnl ========================================================
+MOZ_ARG_ENABLE_BOOL(pango,
+[ --enable-pango Enable Pango font rendering support],
+ MOZ_ENABLE_PANGO=1,
+ MOZ_ENABLE_PANGO=)
+
+if test "$MOZ_ENABLE_PANGO"
+then
+ AC_DEFINE(MOZ_ENABLE_PANGO)
+ PKG_CHECK_MODULES(MOZ_PANGO, pango >= 1.5.0)
+
+ dnl Make sure that the pango version is _actually_ new enough
+ _SAVE_CFLAGS=$CFLAGS
+ _SAVE_LDFLAGS=$LDFLAGS
+ CFLAGS="$MOZ_PANGO_CFLAGS $CFLAGS"
+ LDFLAGS="$MOZ_PANGO_LIBS $LDFLAGS"
+ AC_CHECK_LIB(pangoft2-1.0, pango_fc_font_map_add_decoder_find_func,,
+ AC_MSG_ERROR([Your Pango is too old. Sorry.]))
+ CFLAGS=$_SAVE_CFLAGS
+ LDFLAGS=$_SAVE_LDFLAGS
+
+ AC_SUBST(MOZ_ENABLE_PANGO)
+ AC_SUBST(MOZ_PANGO_CFLAGS)
+ AC_SUBST(MOZ_PANGO_LIBS)
+fi
+
+dnl ========================================================
dnl = disabling x11 core support, enabled by default
dnl ========================================================
MOZ_ENABLE_COREXFONTS=${MOZ_ENABLE_COREXFONTS-1}
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