Added TQt4 HEAD

1 files changed, 111 insertions, 0 deletions

diff --git a/tqtinterface/qt4/include/private/qt4_harfbuzz/src/harfbuzz-thai.c b/tqtinterface/qt4/include/private/qt4_harfbuzz/src/harfbuzz-thai.c
new file mode 100644
index 0000000..e153ba9
--- /dev/null
+++ b/tqtinterface/qt4/include/private/qt4_harfbuzz/src/harfbuzz-thai.c
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
+ *
+ * This is 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.
+ */
+
+#include "harfbuzz-shaper.h"
+#include "harfbuzz-shaper-private.h"
+#include "harfbuzz-external.h"
+
+#include <assert.h>
+#include <stdio.h>
+
+typedef int (*th_brk_def)(const char*, int[], int);
+static th_brk_def th_brk = 0;
+static int libthai_resolved = 0;
+
+static void resolve_libthai()
+{
+    if (!th_brk)
+        th_brk = (th_brk_def)HB_Library_Resolve("thai", 0, "th_brk");
+    libthai_resolved = 1;
+}
+
+static void to_tis620(const HB_UChar16 *string, hb_uint32 len, const char *cstr)
+{
+    hb_uint32 i;
+    unsigned char *result = (unsigned char *)cstr;
+
+    for (i = 0; i < len; ++i) {
+        if (string[i] <= 0xa0)
+            result[i] = (unsigned char)string[i];
+        if (string[i] >= 0xe01 && string[i] <= 0xe5b)
+            result[i] = (unsigned char)(string[i] - 0xe00 + 0xa0);
+        else
+            result[i] = '?';
+    }
+
+    result[len] = 0;
+}
+
+static void thaiWordBreaks(const HB_UChar16 *string, hb_uint32 len, HB_CharAttributes *attributes)
+{
+    char s[128];
+    char *cstr = s;
+    int brp[128];
+    int *break_positions = brp;
+    hb_uint32 numbreaks;
+    hb_uint32 i;
+
+    if (!libthai_resolved)
+        resolve_libthai();
+
+    if (!th_brk)
+        return;
+
+    if (len >= 128)
+        cstr = (char *)malloc(len*sizeof(char) + 1);
+
+    to_tis620(string, len, cstr);
+
+    numbreaks = th_brk(cstr, break_positions, 128);
+    if (numbreaks > 128) {
+        break_positions = (int *)malloc(numbreaks * sizeof(int));
+        numbreaks = th_brk(cstr, break_positions, numbreaks);
+    }
+
+    for (i = 0; i < len; ++i) {
+        attributes[i].lineBreakType = HB_NoBreak;
+        attributes[i].wordBoundary = FALSE;
+    }
+
+    for (i = 0; i < numbreaks; ++i) {
+        if (break_positions[i] > 0) {
+            attributes[break_positions[i]-1].lineBreakType = HB_Break;
+            attributes[i].wordBoundary = TRUE;
+        }
+    }
+
+    if (break_positions != brp)
+        free(break_positions);
+
+    if (len >= 128)
+        free(cstr);
+}
+
+void HB_ThaiAttributes(HB_Script script, const HB_UChar16 *text, hb_uint32 from, hb_uint32 len, HB_CharAttributes *attributes)
+{
+    assert(script == HB_Script_Thai);
+    attributes += from;
+    thaiWordBreaks(text + from, len, attributes);
+}
+