Long live Qt!

1 files changed, 219 insertions, 0 deletions

diff --git a/src/gui/painting/qfixed_p.h b/src/gui/painting/qfixed_p.h
new file mode 100644
index 0000000..2e49615
--- /dev/null
+++ b/src/gui/painting/qfixed_p.h
@@ -0,0 +1,219 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QFIXED_P_H
+#define QFIXED_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of other Qt classes.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "QtCore/qdebug.h"
+#include "QtCore/qpoint.h"
+#include "QtCore/qsize.h"
+
+QT_BEGIN_NAMESPACE
+
+struct QFixed {
+public:
+    QFixed() : val(0) {}
+    QFixed(int i) : val(i<<6) {}
+    QFixed(long i) : val(i<<6) {}
+    QFixed &operator=(int i) { val = (i<<6); return *this; }
+    QFixed &operator=(long i) { val = (i<<6); return *this; }
+
+    static QFixed fromReal(qreal r) { QFixed f; f.val = (int)(r*qreal(64)); return f; }
+    static QFixed fromFixed(int fixed) { QFixed f; f.val = fixed; return f; }
+
+    inline int value() const { return val; }
+    inline void setValue(int value) { val = value; }
+
+    inline int toInt() const { return (((val)+32) & -64)>>6; }
+    inline qreal toReal() const { return ((qreal)val)/(qreal)64; }
+
+    inline int truncate() const { return val>>6; }
+    inline QFixed round() const { QFixed f; f.val = ((val)+32) & -64; return f; }
+    inline QFixed floor() const { QFixed f; f.val = (val) & -64; return f; }
+    inline QFixed ceil() const { QFixed f; f.val = (val+63) & -64; return f; }
+
+    inline QFixed operator+(int i) const { QFixed f; f.val = (val + (i<<6)); return f; }
+    inline QFixed operator+(uint i) const { QFixed f; f.val = (val + (i<<6)); return f; }
+    inline QFixed operator+(const QFixed &other) const { QFixed f; f.val = (val + other.val); return f; }
+    inline QFixed &operator+=(int i) { val += (i<<6); return *this; }
+    inline QFixed &operator+=(uint i) { val += (i<<6); return *this; }
+    inline QFixed &operator+=(const QFixed &other) { val += other.val; return *this; }
+    inline QFixed operator-(int i) const { QFixed f; f.val = (val - (i<<6)); return f; }
+    inline QFixed operator-(uint i) const { QFixed f; f.val = (val - (i<<6)); return f; }
+    inline QFixed operator-(const QFixed &other) const { QFixed f; f.val = (val - other.val); return f; }
+    inline QFixed &operator-=(int i) { val -= (i<<6); return *this; }
+    inline QFixed &operator-=(uint i) { val -= (i<<6); return *this; }
+    inline QFixed &operator-=(const QFixed &other) { val -= other.val; return *this; }
+    inline QFixed operator-() const { QFixed f; f.val = -val; return f; }
+
+    inline bool operator==(const QFixed &other) const { return val == other.val; }
+    inline bool operator!=(const QFixed &other) const { return val != other.val; }
+    inline bool operator<(const QFixed &other) const { return val < other.val; }
+    inline bool operator>(const QFixed &other) const { return val > other.val; }
+    inline bool operator<=(const QFixed &other) const { return val <= other.val; }
+    inline bool operator>=(const QFixed &other) const { return val >= other.val; }
+    inline bool operator!() const { return !val; }
+
+    inline QFixed &operator/=(int x) { val /= x; return *this; }
+    inline QFixed &operator/=(const QFixed &o) {
+        if (o.val == 0) {
+            val = 0x7FFFFFFFL;
+        } else {
+            bool neg = false;
+            qint64 a = val;
+            qint64 b = o.val;
+            if (a < 0) { a = -a; neg = true; }
+            if (b < 0) { b = -b; neg = !neg; }
+
+            int res = (int)(((a << 6) + (b >> 1)) / b);
+
+            val = (neg ? -res : res);
+        }
+        return *this;
+    }
+    inline QFixed operator/(int d) const { QFixed f; f.val = val/d; return f; }
+    inline QFixed operator/(QFixed b) const { QFixed f = *this; return (f /= b); }
+    inline QFixed operator>>(int d) const { QFixed f = *this; f.val >>= d; return f; }
+    inline QFixed &operator*=(int i) { val *= i; return *this; }
+    inline QFixed &operator*=(uint i) { val *= i; return *this; }
+    inline QFixed &operator*=(const QFixed &o) {
+        bool neg = false;
+        qint64 a = val;
+        qint64 b = o.val;
+        if (a < 0) { a = -a; neg = true; }
+        if (b < 0) { b = -b; neg = !neg; }
+
+        int res = (int)((a * b + 0x20L) >> 6);
+        val = neg ? -res : res;
+        return *this;
+    }
+    inline QFixed operator*(int i) const { QFixed f = *this; return (f *= i); }
+    inline QFixed operator*(uint i) const { QFixed f = *this; return (f *= i); }
+    inline QFixed operator*(const QFixed &o) const { QFixed f = *this; return (f *= o); }
+
+private:
+    QFixed(qreal i) : val((int)(i*qreal(64))) {}
+    QFixed &operator=(qreal i) { val = (int)(i*qreal(64)); return *this; }
+    inline QFixed operator+(qreal i) const { QFixed f; f.val = (val + (int)(i*qreal(64))); return f; }
+    inline QFixed &operator+=(qreal i) { val += (int)(i*64); return *this; }
+    inline QFixed operator-(qreal i) const { QFixed f; f.val = (val - (int)(i*qreal(64))); return f; }
+    inline QFixed &operator-=(qreal i) { val -= (int)(i*64); return *this; }
+    inline QFixed &operator/=(qreal r) { val = (int)(val/r); return *this; }
+    inline QFixed operator/(qreal d) const { QFixed f; f.val = (int)(val/d); return f; }
+    inline QFixed &operator*=(qreal d) { val = (int) (val*d); return *this; }
+    inline QFixed operator*(qreal d) const { QFixed f = *this; return (f *= d); }
+    int val;
+};
+Q_DECLARE_TYPEINFO(QFixed, Q_PRIMITIVE_TYPE);
+
+#define QFIXED_MAX (INT_MAX/256)
+
+inline int qRound(const QFixed &f) { return f.toInt(); }
+inline int qFloor(const QFixed &f) { return f.floor().truncate(); }
+
+inline QFixed operator*(int i, const QFixed &d) { return d*i; }
+inline QFixed operator+(int i, const QFixed &d) { return d+i; }
+inline QFixed operator-(int i, const QFixed &d) { return -(d-i); }
+inline QFixed operator*(uint i, const QFixed &d) { return d*i; }
+inline QFixed operator+(uint i, const QFixed &d) { return d+i; }
+inline QFixed operator-(uint i, const QFixed &d) { return -(d-i); }
+// inline QFixed operator*(qreal d, const QFixed &d2) { return d2*d; }
+
+inline bool operator==(const QFixed &f, int i) { return f.value() == (i<<6); }
+inline bool operator==(int i, const QFixed &f) { return f.value() == (i<<6); }
+inline bool operator!=(const QFixed &f, int i) { return f.value() != (i<<6); }
+inline bool operator!=(int i, const QFixed &f) { return f.value() != (i<<6); }
+inline bool operator<=(const QFixed &f, int i) { return f.value() <= (i<<6); }
+inline bool operator<=(int i, const QFixed &f) { return (i<<6) <= f.value(); }
+inline bool operator>=(const QFixed &f, int i) { return f.value() >= (i<<6); }
+inline bool operator>=(int i, const QFixed &f) { return (i<<6) >= f.value(); }
+inline bool operator<(const QFixed &f, int i) { return f.value() < (i<<6); }
+inline bool operator<(int i, const QFixed &f) { return (i<<6) < f.value(); }
+inline bool operator>(const QFixed &f, int i) { return f.value() > (i<<6); }
+inline bool operator>(int i, const QFixed &f) { return (i<<6) > f.value(); }
+
+inline QDebug &operator<<(QDebug &dbg, const QFixed &f)
+{ return dbg << f.toReal(); }
+
+struct QFixedPoint {
+    QFixed x;
+    QFixed y;
+    inline QFixedPoint() {}
+    inline QFixedPoint(const QFixed &_x, const QFixed &_y) : x(_x), y(_y) {}
+    QPointF toPointF() const { return QPointF(x.toReal(), y.toReal()); }
+    static QFixedPoint fromPointF(const QPointF &p) {
+        return QFixedPoint(QFixed::fromReal(p.x()), QFixed::fromReal(p.y()));
+    }
+};
+Q_DECLARE_TYPEINFO(QFixedPoint, Q_PRIMITIVE_TYPE);
+
+inline QFixedPoint operator-(const QFixedPoint &p1, const QFixedPoint &p2)
+{ return QFixedPoint(p1.x - p2.x, p1.y - p2.y); }
+inline QFixedPoint operator+(const QFixedPoint &p1, const QFixedPoint &p2)
+{ return QFixedPoint(p1.x + p2.x, p1.y + p2.y); }
+
+struct QFixedSize {
+    QFixed width;
+    QFixed height;
+    QSizeF toSizeF() const { return QSizeF(width.toReal(), height.toReal()); }
+    static QFixedSize fromSizeF(const QSizeF &s) {
+        QFixedSize size;
+        size.width = QFixed::fromReal(s.width());
+        size.height = QFixed::fromReal(s.height());
+        return size;
+    }
+};
+Q_DECLARE_TYPEINFO(QFixedSize, Q_PRIMITIVE_TYPE);
+
+QT_END_NAMESPACE
+
+#endif // QTEXTENGINE_P_H