1 files changed, 145 insertions, 0 deletions
diff --git a/examples/widgets/widgets/tetrix/tetrixpiece.cpp b/examples/widgets/widgets/tetrix/tetrixpiece.cpp
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+++ b/examples/widgets/widgets/tetrix/tetrixpiece.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * 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.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "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 THE COPYRIGHT
+** OWNER 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore>
+
+#include <stdlib.h>
+
+#include "tetrixpiece.h"
+
+//! [0]
+void TetrixPiece::setRandomShape()
+{
+    setShape(TetrixShape(qrand() % 7 + 1));
+}
+//! [0]
+
+//! [1]
+void TetrixPiece::setShape(TetrixShape shape)
+{
+    static const int coordsTable[8][4][2] = {
+        { { 0, 0 },   { 0, 0 },   { 0, 0 },   { 0, 0 } },
+        { { 0, -1 },  { 0, 0 },   { -1, 0 },  { -1, 1 } },
+        { { 0, -1 },  { 0, 0 },   { 1, 0 },   { 1, 1 } },
+        { { 0, -1 },  { 0, 0 },   { 0, 1 },   { 0, 2 } },
+        { { -1, 0 },  { 0, 0 },   { 1, 0 },   { 0, 1 } },
+        { { 0, 0 },   { 1, 0 },   { 0, 1 },   { 1, 1 } },
+        { { -1, -1 }, { 0, -1 },  { 0, 0 },   { 0, 1 } },
+        { { 1, -1 },  { 0, -1 },  { 0, 0 },   { 0, 1 } }
+    };
+
+    for (int i = 0; i < 4 ; i++) {
+        for (int j = 0; j < 2; ++j)
+            coords[i][j] = coordsTable[shape][i][j];
+    }
+    pieceShape = shape;
+//! [1] //! [2]
+}
+//! [2]
+
+//! [3]
+int TetrixPiece::minX() const
+{
+    int min = coords[0][0];
+    for (int i = 1; i < 4; ++i)
+        min = qMin(min, coords[i][0]);
+    return min;
+}
+
+int TetrixPiece::maxX() const
+//! [3] //! [4]
+{
+    int max = coords[0][0];
+    for (int i = 1; i < 4; ++i)
+        max = qMax(max, coords[i][0]);
+    return max;
+}
+//! [4]
+
+//! [5]
+int TetrixPiece::minY() const
+{
+    int min = coords[0][1];
+    for (int i = 1; i < 4; ++i)
+        min = qMin(min, coords[i][1]);
+    return min;
+}
+
+int TetrixPiece::maxY() const
+//! [5] //! [6]
+{
+    int max = coords[0][1];
+    for (int i = 1; i < 4; ++i)
+        max = qMax(max, coords[i][1]);
+    return max;
+}
+//! [6]
+
+//! [7]
+TetrixPiece TetrixPiece::rotatedLeft() const
+{
+    if (pieceShape == SquareShape)
+        return *this;
+
+    TetrixPiece result;
+    result.pieceShape = pieceShape;
+    for (int i = 0; i < 4; ++i) {
+        result.setX(i, y(i));
+        result.setY(i, -x(i));
+    }
+//! [7]
+    return result;
+}
+
+//! [9]
+TetrixPiece TetrixPiece::rotatedRight() const
+{
+    if (pieceShape == SquareShape)
+        return *this;
+
+    TetrixPiece result;
+    result.pieceShape = pieceShape;
+    for (int i = 0; i < 4; ++i) {
+        result.setX(i, -y(i));
+        result.setY(i, x(i));
+    }
+//! [9]
+    return result;
+}