Initial revision

1 files changed, 141 insertions, 0 deletions

diff --git a/inputmethods/handwriting/qimpencombining.cpp b/inputmethods/handwriting/qimpencombining.cpp
new file mode 100644
index 0000000..30459e7
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+++ b/inputmethods/handwriting/qimpencombining.cpp
@@ -0,0 +1,141 @@
+/**********************************************************************
+** Copyright (C) 2000 Trolltech AS.  All rights reserved.
+**
+** This file is part of Qtopia Environment.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+
+#include <qfile.h>
+#include <qtl.h>
+#include <math.h>
+#include <limits.h>
+#include <qdatastream.h>
+#include "qimpencombining.h"
+
+static unsigned int combiningSymbols[] = { '\\', '/', '^', '~', '\"', 'o' };
+static unsigned int combiningChars[][7] = {
+    //     \       /       ^       ~       "
+    { 'A', 0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5 },
+    { 'O', 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x0000 },
+    { 'U', 0x00D9, 0x00DA, 0x00DB, 0x0000, 0x00DC, 0x0000 },
+    { 'E', 0x00C8, 0x00C9, 0x00CA, 0x0000, 0x00CB, 0x0000 },
+    { 'I', 0x00CC, 0x00CD, 0x00CE, 0x0000, 0x00CF, 0x0000 },
+    { 'a', 0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5 },
+    { 'e', 0x00E8, 0x00E9, 0x00EA, 0x0000, 0x00EB, 0x0000 },
+    { 'i', 0x00EC, 0x00ED, 0x00EE, 0x0000, 0x00EF, 0x0000 },
+    { 'n', 0x0000, 0x0000, 0x0000, 0x00F1, 0x0000, 0x0000 },
+    { 'o', 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x0000 },
+    { 'u', 0x00F9, 0x00FA, 0x00FB, 0x0000, 0x00FC, 0x0000 },
+    { 'y', 0x0000, 0x00FD, 0x0000, 0x0000, 0x00FF, 0x0000 },
+    { 0, 0, 0, 0, 0, 0, 0 }
+};
+
+
+QIMPenCombining::QIMPenCombining()
+{
+}
+
+QIMPenCombining::QIMPenCombining( const QString &fn )
+    : QIMPenCharSet( fn )
+{
+}
+
+void QIMPenCombining::addCombined( QIMPenCharSet *cs )
+{
+    unsigned int count = cs->count();
+    QIMPenCharIterator it( cs->characters() );
+    for ( ; it.current() && count; ++it, --count ) {
+	QIMPenChar *pc = it.current();
+	if ( pc->testFlag( QIMPenChar::Deleted ) )
+	    continue;
+	int charIdx = findCombining( pc->character() );
+	if ( charIdx < 0 )
+	    continue;
+	for ( int i = 0; i < 6; i++ ) {
+	    if ( combiningChars[charIdx][i+1] ) {
+		QIMPenCharIterator cit( chars );
+		for ( ; cit.current(); ++cit ) {
+		    QIMPenChar *accentPc = cit.current();
+		    if ( accentPc->character() == combiningSymbols[i] ) {
+			QIMPenChar *combined = combine( pc, accentPc );
+			combined->setCharacter( combiningChars[charIdx][i+1] );
+			cs->addChar( combined );
+		    }
+		}
+	    }
+	}
+    }
+}
+
+int QIMPenCombining::findCombining( unsigned int ch ) const
+{
+    int i = 0;
+    while ( combiningChars[i][0] ) {
+	if ( combiningChars[i][0] == ch )
+	    return i;
+	i++;
+    }
+
+    return -1;
+}
+
+QIMPenChar *QIMPenCombining::combine( QIMPenChar *base, QIMPenChar *accent )
+{
+    QRect brect = base->boundingRect();
+    QRect arect = accent->boundingRect();
+    int offset;
+    if ( accent->testFlag( QIMPenChar::CombineRight ) )
+	offset = brect.left() - arect.left() + brect.width() + 2;
+    else
+	offset = brect.left() - arect.left() + (brect.width() - arect.width())/2;
+    QIMPenChar *combined = 0;
+    if ( base->character() == 'i' ) {
+	// Hack to remove the dot from i's when combining.
+	if ( base->penStrokes().count() > 1 ) {
+	    combined = new QIMPenChar;
+	    QIMPenStrokeIterator it( base->penStrokes() );
+	    for ( unsigned int i = 0; i < base->penStrokes().count()-1; ++it, i++ ) {
+		QIMPenStroke *st = new QIMPenStroke( *(it.current()) );
+		combined->addStroke( st );
+	    }
+	    combined->setFlag( QIMPenChar::System );
+	}
+    }
+    if ( !combined )
+	combined = new QIMPenChar( *base );
+    QIMPenStrokeIterator it( accent->penStrokes() );
+    for ( ; it.current(); ++it ) {
+	QIMPenStroke *st = new QIMPenStroke( *(it.current()) );
+	st->setStartingPoint( st->startingPoint() + QPoint(offset, 0 ));
+	combined->addStroke( st );
+	delete st;
+    }
+
+    return combined;
+}
+
+QIMPenChar *QIMPenCombining::penChar( int type )
+{
+    QIMPenCharIterator it( chars );
+    for ( ; it.current(); ++it ) {
+	QIMPenChar *pc = it.current();
+	if ( pc->character() == combiningSymbols[type] )
+	    return pc;
+    }
+
+    return 0;
+}
+