auto import from //depot/cupcake/@135843

1 files changed, 125 insertions, 0 deletions

diff --git a/WebCore/platform/text/qt/TextBoundaries.cpp b/WebCore/platform/text/qt/TextBoundaries.cpp
new file mode 100644
index 0000000..bdc851b
--- /dev/null
+++ b/WebCore/platform/text/qt/TextBoundaries.cpp
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2006 Zack Rusin <zack@kde.org>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include "TextBoundaries.h"
+#include "NotImplemented.h"
+
+#include <QString>
+#include <QChar>
+
+#include <QDebug>
+#include <stdio.h>
+
+#if QT_VERSION >= 0x040400
+#include <qtextboundaryfinder.h>
+
+namespace WebCore
+{
+
+int findNextWordFromIndex(UChar const* buffer, int len, int position, bool forward)
+{
+    QString str(reinterpret_cast<QChar const*>(buffer), len);
+    QTextBoundaryFinder iterator(QTextBoundaryFinder::Word, str);
+    iterator.setPosition(position >= len ? len - 1 : position);
+    if (forward) {
+        int pos = iterator.toNextBoundary();
+        while (pos > 0) {
+            if (QChar(buffer[pos-1]).isLetterOrNumber())
+                return pos;
+            pos = iterator.toNextBoundary();
+        }
+        return len;
+    } else {
+        int pos = iterator.toPreviousBoundary();
+        while (pos > 0) {
+            if (QChar(buffer[pos]).isLetterOrNumber())
+                return pos;
+            pos = iterator.toPreviousBoundary();
+        }
+        return 0;
+    }
+}
+
+void findWordBoundary(UChar const* buffer, int len, int position, int* start, int* end)
+{
+    QString str(reinterpret_cast<QChar const*>(buffer), len);
+    QTextBoundaryFinder iterator(QTextBoundaryFinder::Word, str);
+    iterator.setPosition(position);
+    *start = position > 0 ? iterator.toPreviousBoundary() : 0;
+    *end = position == len ? len : iterator.toNextBoundary();
+}
+
+}
+
+#else
+namespace WebCore
+{
+    
+int findNextWordFromIndex(UChar const* buffer, int len, int position, bool forward)
+{
+    QString str(reinterpret_cast<QChar const*>(buffer), len);
+    notImplemented();
+    return 0;
+}
+
+void findWordBoundary(UChar const* buffer, int len, int position, int* start, int* end)
+{
+    QString str(reinterpret_cast<QChar const*>(buffer), len);
+
+    if (position > str.length()) {
+        *start = 0;
+        *end = 0;
+        return;
+    }
+
+    int currentPosition = position - 1;
+    QString foundWord;
+    while (currentPosition >= 0 &&
+           str[currentPosition].isLetter()) {
+        foundWord.prepend(str[currentPosition]);
+        --currentPosition;
+    }
+
+    // currentPosition == 0 means the first char is not letter
+    // currentPosition == -1 means we reached the beginning
+    int startPos = (currentPosition < 0) ? 0 : ++currentPosition;
+    currentPosition = position;
+    if (str[currentPosition].isLetter()) {
+            while (str[currentPosition].isLetter()) {
+                foundWord.append(str[currentPosition]);
+                ++currentPosition;
+            }
+    }
+
+    *start = startPos;
+    *end = currentPosition;
+}
+
+}
+#endif