Initial revision

1 files changed, 91 insertions, 0 deletions

diff --git a/inputmethods/handwriting/qimpenstroke.h b/inputmethods/handwriting/qimpenstroke.h
new file mode 100644
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+++ b/inputmethods/handwriting/qimpenstroke.h
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+/**********************************************************************
+** 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.
+**
+**********************************************************************/
+
+#ifndef QIMPENSTROKE_H_
+#define QIMPENSTROKE_H_
+
+#include <qobject.h>
+#include <qarray.h>
+#include <qlist.h>
+
+struct Q_PACKED QIMPenGlyphLink
+{
+    signed char dx;
+    signed char dy;
+};
+
+class QIMPenStroke
+{
+public:
+    QIMPenStroke();
+    QIMPenStroke( const QIMPenStroke & );
+
+    void clear();
+    bool isEmpty() const { return links.isEmpty(); }
+    unsigned int length() const { return links.count(); }
+    unsigned int match( QIMPenStroke *st );
+    const QArray<QIMPenGlyphLink> &chain() const { return links; }
+    QPoint startingPoint() const { return startPoint; }
+    void setStartingPoint( const QPoint &p ) { startPoint = p; }
+    QRect boundingRect();
+
+    QIMPenStroke &operator=( const QIMPenStroke &s );
+
+    void beginInput( QPoint p );
+    bool addPoint( QPoint p );
+    void endInput();
+
+    QArray<int> sig() { createTanSignature(); return tsig; } // for debugging
+
+protected:
+    void createSignatures();
+    void createTanSignature();
+    void createAngleSignature();
+    void createDistSignature();
+    int calcError( const QArray<int> &base, const QArray<int> &win,
+                      int off, bool t );
+    QArray<int> scale( const QArray<int> &s, unsigned count, bool t = FALSE );
+    void internalAddPoint( QPoint p );
+    QPoint calcCenter();
+    int arcTan( int dy, int dx );
+    QArray<int> createBase( const QArray<int> a, int e );
+    void smooth( QArray<int> &);
+
+protected:
+    QPoint startPoint;
+    QPoint lastPoint;
+    QArray<QIMPenGlyphLink> links;
+    QArray<int> tsig;
+    QArray<int> asig;
+    QArray<int> dsig;
+    QRect bounding;
+
+    friend QDataStream &operator<< (QDataStream &, const QIMPenStroke &);
+    friend QDataStream &operator>> (QDataStream &, QIMPenStroke &);
+};
+
+typedef QList<QIMPenStroke> QIMPenStrokeList;
+typedef QListIterator<QIMPenStroke> QIMPenStrokeIterator;
+
+QDataStream & operator<< (QDataStream & s, const QIMPenStroke &ws);
+QDataStream & operator>> (QDataStream & s, const QIMPenStroke &ws);
+
+#endif
+