Duplicate some harfbuzz symbols inside Qt.

This is done to remove a compile-time dependency on the harfbuzz
source files inside qtbase/src/3rdparty. These are not accessible
now that QT_SOURCE_TREE is not accessible as a qmake variable
anymore.

With the refactor branch we might solve this differently, but for
now this is how we get svg and declarative to compile.

Change-Id: I5dad23f2ea1f650e2621c1c1fcf39632a3a22ae8
Reviewed-on: http://codereview.qt.nokia.com/378
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com>

src/gui/text/qfontengine_ft_p.h

@@ -70,7 +70,11 @@
 
 #include <qmutex.h>
 
-#include <harfbuzz-shaper.h>
+#if defined (QT_BUILD_GUI_LIB)
+#  include "private/qharfbuzz_p.h"
+#else
+#  include "private/qharfbuzz_copy_p.h"
+#endif
 
 QT_BEGIN_NAMESPACE
 

src/gui/text/qharfbuzz_copy_p.h

@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies)
+ * Copyright (C) 2007  Red Hat, Inc.
+ *
+ * This code is a modified version of some part of HarfBuzz,
+ * an OpenType Layout engine library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Red Hat Author(s): Behdad Esfahbod
+ */
+
+#ifndef QHARFBUZZ_COPY_P_H
+#define QHARFBUZZ_COPY_P_H
+
+/*
+  The purpose of this header file is to allow inclusion of the private
+  headers for font and text classes without having to pull in the full
+  harfbuzz library under QTDIR/src/3rdparty/harfbuzz/src
+*/
+
+extern "C" {
+
+#ifdef  __xlC__
+typedef unsigned hb_bitfield;
+#else
+typedef quint8 hb_bitfield;
+#endif
+
+typedef enum {
+  /* no error */
+  HB_Err_Ok                           = 0x0000,
+  HB_Err_Not_Covered                  = 0xFFFF,
+
+  /* _hb_err() is called whenever returning the following errors,
+   * and in a couple places for HB_Err_Not_Covered too. */
+
+  /* programmer error */
+  HB_Err_Invalid_Argument             = 0x1A66,
+
+  /* font error */
+  HB_Err_Invalid_SubTable_Format      = 0x157F,
+  HB_Err_Invalid_SubTable             = 0x1570,
+  HB_Err_Read_Error                   = 0x6EAD,
+
+  /* system error */
+  HB_Err_Out_Of_Memory                = 0xDEAD
+} HB_Error;
+
+typedef quint32 HB_Glyph;
+typedef void * HB_Font;
+typedef void * HB_Face;
+typedef void * HB_FontRec;
+typedef quint32 hb_uint32;
+typedef qint32 HB_Fixed;
+
+typedef struct {
+    HB_Fixed x;
+    HB_Fixed y;
+} HB_FixedPoint;
+
+// The GlyphAttrbutes class is used inline so it needs to be complete.
+typedef struct {
+    hb_bitfield justification   :4;  /* Justification class */
+    hb_bitfield clusterStart    :1;  /* First glyph of representation of cluster */
+    hb_bitfield mark            :1;  /* needs to be positioned around base char */
+    hb_bitfield zeroWidth       :1;  /* ZWJ, ZWNJ etc, with no width */
+    hb_bitfield dontPrint       :1;
+    hb_bitfield combiningClass  :8;
+} HB_GlyphAttributes;
+
+// This struct is strictly not needed, but we replicate it completely in
+// case the compiler tries to get clever with padding.
+typedef struct {
+    /*HB_LineBreakType*/ hb_bitfield lineBreakType  :2;
+    /*HB_Bool*/ hb_bitfield whiteSpace              :1;     /* A unicode whitespace character, except NBSP, ZWNBSP */
+    /*HB_Bool*/ hb_bitfield charStop                :1;     /* Valid cursor position (for left/right arrow) */
+    /*HB_Bool*/ hb_bitfield wordBoundary            :1;
+    /*HB_Bool*/ hb_bitfield sentenceBoundary        :1;
+    hb_bitfield unused                  :2;
+} HB_CharAttributes;
+
+}
+
+#endif // QHARFBUZZ_COPY_P_H

src/gui/text/qtextengine_p.h

@@ -70,7 +70,13 @@
 #ifndef QT_BUILD_COMPAT_LIB
 #include "private/qtextdocument_p.h"
 #endif
-#include "private/qharfbuzz_p.h"
+
+#if defined (QT_BUILD_GUI_LIB)
+#  include "private/qharfbuzz_p.h"
+#else
+#  include "private/qharfbuzz_copy_p.h"
+#endif
+
 #include "private/qfixed_p.h"
 
 #include <stdlib.h>

src/gui/text/text.pri

@@ -43,7 +43,8 @@ HEADERS += \
         text/qrawfont.h \
         text/qrawfont_p.h \
     text/qglyphrun.h \
-    text/qglyphrun_p.h
+    text/qglyphrun_p.h \
+    text/qharfbuzz_copy_p.h
 
 SOURCES += \
 	text/qfont.cpp \