Adding upstream version 4:24.2.0.upstream/4%24.2.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 290 insertions, 0 deletions

diff --git a/include/svx/svdtrans.hxx b/include/svx/svdtrans.hxx
new file mode 100644
index 0000000000..ae225426af
--- /dev/null
+++ b/include/svx/svdtrans.hxx
@@ -0,0 +1,290 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <rtl/ustring.hxx>
+#include <svx/svxdllapi.h>
+#include <tools/degree.hxx>
+#include <tools/fldunit.hxx>
+#include <tools/fract.hxx>
+#include <tools/gen.hxx>
+#include <tools/helpers.hxx>
+#include <tools/mapunit.hxx>
+#include <tools/poly.hxx>
+
+// That maximum shear angle
+constexpr Degree100 SDRMAXSHEAR(8900);
+
+class XPolygon;
+class XPolyPolygon;
+
+inline void MovePoly(tools::Polygon& rPoly, const Size& S)      { rPoly.Move(S.Width(),S.Height()); }
+void MoveXPoly(XPolygon& rPoly, const Size& S);
+
+SVXCORE_DLLPUBLIC void ResizeRect(tools::Rectangle& rRect, const Point& rRef, const Fraction& xFact, const Fraction& yFact);
+inline void ResizePoint(Point& rPnt, const Point& rRef, const Fraction& xFract, const Fraction& yFract);
+void ResizePoly(tools::Polygon& rPoly, const Point& rRef, const Fraction& xFact, const Fraction& yFact);
+void ResizeXPoly(XPolygon& rPoly, const Point& rRef, const Fraction& xFact, const Fraction& yFact);
+
+inline void RotatePoint(Point& rPnt, const Point& rRef, double sn, double cs);
+SVXCORE_DLLPUBLIC void RotatePoly(tools::Polygon& rPoly, const Point& rRef, double sn, double cs);
+void RotateXPoly(XPolygon& rPoly, const Point& rRef, double sn, double cs);
+void RotateXPoly(XPolyPolygon& rPoly, const Point& rRef, double sn, double cs);
+
+void MirrorPoint(Point& rPnt, const Point& rRef1, const Point& rRef2);
+void MirrorXPoly(XPolygon& rPoly, const Point& rRef1, const Point& rRef2);
+
+inline void ShearPoint(Point& rPnt, const Point& rRef, double tn, bool bVShear = false);
+SVXCORE_DLLPUBLIC void ShearPoly(tools::Polygon& rPoly, const Point& rRef, double tn);
+void ShearXPoly(XPolygon& rPoly, const Point& rRef, double tn, bool bVShear = false);
+
+/**
+ * rPnt.X/rPnt.Y is set to rCenter.X or rCenter.Y!
+ * We then only need to rotate rPnt by rCenter.
+ *
+ * @return the returned angle is in rad
+ */
+inline double GetCrookAngle(Point& rPnt, const Point& rCenter, const Point& rRad, bool bVertical);
+
+/**
+ * The following methods accept a point of an XPolygon, whereas the neighbouring
+ * control points of the actual point are passed in pC1/pC2.
+ * Via rSin/rCos, sin(nAngle) and cos(nAngle) are returned.
+ *
+ * @return the returned angle is in rad
+ */
+double CrookRotateXPoint(Point& rPnt, Point* pC1, Point* pC2, const Point& rCenter,
+                         const Point& rRad, double& rSin, double& rCos, bool bVert);
+double CrookSlantXPoint(Point& rPnt, Point* pC1, Point* pC2, const Point& rCenter,
+                        const Point& rRad, double& rSin, double& rCos, bool bVert);
+double CrookStretchXPoint(Point& rPnt, Point* pC1, Point* pC2, const Point& rCenter,
+                          const Point& rRad, double& rSin, double& rCos, bool bVert,
+                          const tools::Rectangle& rRefRect);
+
+void CrookRotatePoly(XPolygon& rPoly, const Point& rCenter, const Point& rRad, bool bVert);
+void CrookSlantPoly(XPolygon& rPoly, const Point& rCenter, const Point& rRad, bool bVert);
+void CrookStretchPoly(XPolygon& rPoly, const Point& rCenter, const Point& rRad, bool bVert, const tools::Rectangle& rRefRect);
+
+void CrookRotatePoly(XPolyPolygon& rPoly, const Point& rCenter, const Point& rRad, bool bVert);
+void CrookSlantPoly(XPolyPolygon& rPoly, const Point& rCenter, const Point& rRad, bool bVert);
+void CrookStretchPoly(XPolyPolygon& rPoly, const Point& rCenter, const Point& rRad, bool bVert, const tools::Rectangle& rRefRect);
+
+/**************************************************************************************************/
+/*  Inline                                                                                        */
+/**************************************************************************************************/
+
+inline void ResizePoint(Point& rPnt, const Point& rRef, const Fraction& xFract, const Fraction& yFract)
+{
+    double nxFract = xFract.IsValid() ? static_cast<double>(xFract) : 1.0;
+    double nyFract = yFract.IsValid() ? static_cast<double>(yFract) : 1.0;
+    rPnt.setX(rRef.X() + FRound( (rPnt.X() - rRef.X()) * nxFract ));
+    rPnt.setY(rRef.Y() + FRound( (rPnt.Y() - rRef.Y()) * nyFract ));
+}
+
+inline void RotatePoint(Point& rPnt, const Point& rRef, double sn, double cs)
+{
+    tools::Long dx=rPnt.X()-rRef.X();
+    tools::Long dy=rPnt.Y()-rRef.Y();
+    rPnt.setX(FRound(rRef.X()+dx*cs+dy*sn));
+    rPnt.setY(FRound(rRef.Y()+dy*cs-dx*sn));
+}
+
+inline void ShearPoint(Point& rPnt, const Point& rRef, double tn, bool bVShear)
+{
+    if (!bVShear) { // Horizontal
+        if (rPnt.Y()!=rRef.Y()) { // else not needed
+            rPnt.AdjustX(-FRound((rPnt.Y()-rRef.Y())*tn));
+        }
+    } else { // or else vertical
+        if (rPnt.X()!=rRef.X()) { // else not needed
+            rPnt.AdjustY(-FRound((rPnt.X()-rRef.X())*tn));
+        }
+    }
+}
+
+inline double GetCrookAngle(Point& rPnt, const Point& rCenter, const Point& rRad, bool bVertical)
+{
+    double nAngle;
+    if (bVertical) {
+        tools::Long dy=rPnt.Y()-rCenter.Y();
+        nAngle=static_cast<double>(dy)/static_cast<double>(rRad.Y());
+        rPnt.setY(rCenter.Y());
+    } else {
+        tools::Long dx=rCenter.X()-rPnt.X();
+        nAngle=static_cast<double>(dx)/static_cast<double>(rRad.X());
+        rPnt.setX(rCenter.X());
+    }
+    return nAngle;
+}
+
+/**************************************************************************************************/
+/**************************************************************************************************/
+
+/**
+ * The Y axis points down!
+ * The function negates the Y axis, when calculating the angle, such
+ * that GetAngle(Point(0,-1))=90 deg.
+ * GetAngle(Point(0,0)) returns 0.
+ *
+ * @return the returned value is in the range of -180.00..179.99 deg
+ * and is in 1/100 deg units
+ */
+SVXCORE_DLLPUBLIC Degree100 GetAngle(const Point& rPnt);
+
+SVXCORE_DLLPUBLIC Degree100 NormAngle18000(Degree100 a); /// Normalize angle to -180.00..179.99
+
+SVXCORE_DLLPUBLIC Degree100 NormAngle36000(Degree100 a); /// Normalize angle to 0.00..359.99
+
+sal_uInt16 GetAngleSector(Degree100 nAngle); /// Determine sector within the cartesian coordinate system
+
+/**
+ * Calculates the length of (0,0) via a^2 + b^2 = c^2
+ * In order to avoid overflows, we ignore some decimal places.
+ */
+tools::Long GetLen(const Point& rPnt);
+
+/**
+ * The transformation of a rectangle into a polygon, by
+ * using angle parameters from GeoStat.                          ------------
+ * The point of reference is always the Point 0, meaning        /1        2/
+ * the upper left corner of the initial rectangle.             /          /
+ * When calculating the polygon, the order is first           /          /
+ * shear and then the rotation.                              /          /
+ *                                                          /          / \
+ *                                                         /          /   |
+ * A) Initial rectangle aRect  B) After applying Shear     /0        3/ Rot|
+ * +------------------+       --------------------        ------------------
+ * |0                1|        \0                1\       C) After applying Rotate
+ * |                  |         \                  \
+ * |                  |       |  \                  \
+ * |3                2|       |   \3                2\
+ * +------------------+       |    --------------------
+ *                            |Shr
+ *
+ * When converting the polygon back into a rect, the order is necessarily the
+ * other way around:
+ *  - Calculating the rotation angle: angle of the line 0-1 in figure C) to the horizontal
+ *  - Turning the sheared rect back (we get figure B)
+ *  - Determining the width of the rect = length of the line 0-1 in figure B)
+ *  - Determining the height of the rect = vertical distance between the points 0 and 3
+ *    of figure B)
+ *  - Determining the shear angle from the line 0-3 to the perpendicular line.
+ *
+ * We need to keep in mind that the polygon can be mirrored when it was
+ * transformed in the meantime (e.g. mirror or resize with negative factor).
+ * In that case, we first need to normalize, by swapping points (0 with 3 and 1
+ * with 2), so that it has the right orientation.
+ *
+ * Note: a positive shear angle means a shear with a positive visible curvature
+ * on the screen. Mathematically, that would be a negative curvature, as the
+ * Y axis runs from top to bottom on the screen.
+ * Rotation angle: positive means a visible left rotation.
+ */
+
+class GeoStat { // Geometric state for a rect
+public:
+    Degree100 m_nRotationAngle;
+    Degree100 m_nShearAngle;
+    double   mfTanShearAngle;      // tan(nShearAngle)
+    double   mfSinRotationAngle;   // sin(nRotationAngle)
+    double   mfCosRotationAngle;   // cos(nRotationAngle)
+
+    GeoStat(): m_nRotationAngle(0),m_nShearAngle(0),mfTanShearAngle(0.0),mfSinRotationAngle(0.0),mfCosRotationAngle(1.0) {}
+    void RecalcSinCos();
+    void RecalcTan();
+};
+
+tools::Polygon Rect2Poly(const tools::Rectangle& rRect, const GeoStat& rGeo);
+
+namespace svx
+{
+tools::Rectangle polygonToRectangle(const tools::Polygon& rPolygon, GeoStat& rGeo);
+}
+
+void OrthoDistance8(const Point& rPt0, Point& rPt, bool bBigOrtho);
+void OrthoDistance4(const Point& rPt0, Point& rPt, bool bBigOrtho);
+
+// Multiplication and subsequent division
+// Calculation and intermediate values are in BigInt
+SVXCORE_DLLPUBLIC tools::Long BigMulDiv(tools::Long nVal, tools::Long nMul, tools::Long nDiv);
+
+class FrPair {
+    Fraction m_aX;
+    Fraction m_aY;
+public:
+    FrPair(const Fraction& rBoth)                     : m_aX(rBoth),m_aY(rBoth)         {}
+    FrPair(const Fraction& rX, const Fraction& rY)    : m_aX(rX),m_aY(rY)               {}
+    FrPair(tools::Long nMul, tools::Long nDiv)                      : m_aX(nMul,nDiv),m_aY(nMul,nDiv) {}
+    FrPair(tools::Long xMul, tools::Long xDiv, tools::Long yMul, tools::Long yDiv): m_aX(xMul,xDiv),m_aY(yMul,yDiv) {}
+    const Fraction& X() const { return m_aX; }
+    const Fraction& Y() const { return m_aY; }
+    Fraction& X()             { return m_aX; }
+    Fraction& Y()             { return m_aY; }
+};
+
+// To convert units of measurement
+SVXCORE_DLLPUBLIC FrPair GetMapFactor(MapUnit eS, MapUnit eD);
+FrPair GetMapFactor(FieldUnit eS, FieldUnit eD);
+
+inline bool IsMetric(MapUnit eU) {
+    return (eU==MapUnit::Map100thMM || eU==MapUnit::Map10thMM || eU==MapUnit::MapMM || eU==MapUnit::MapCM);
+}
+
+inline bool IsInch(MapUnit eU) {
+    return (eU==MapUnit::Map1000thInch || eU==MapUnit::Map100thInch || eU==MapUnit::Map10thInch || eU==MapUnit::MapInch ||
+            eU==MapUnit::MapPoint       || eU==MapUnit::MapTwip);
+}
+
+inline bool IsMetric(FieldUnit eU) {
+    return (eU == FieldUnit::MM || eU == FieldUnit::CM || eU == FieldUnit::M
+            || eU == FieldUnit::KM || eU == FieldUnit::MM_100TH);
+}
+
+inline bool IsInch(FieldUnit eU) {
+    return (eU == FieldUnit::TWIP || eU == FieldUnit::POINT
+            || eU == FieldUnit::PICA || eU == FieldUnit::INCH
+            || eU == FieldUnit::FOOT || eU == FieldUnit::MILE);
+}
+
+class SVXCORE_DLLPUBLIC SdrFormatter {
+    tools::Long      m_nMul;
+    tools::Long      m_nDiv;
+    short     m_nComma;
+    bool      m_bDirty;
+    MapUnit   m_eSrcMU;
+    MapUnit   m_eDstMU;
+private:
+    SVX_DLLPRIVATE void Undirty();
+public:
+    SdrFormatter(MapUnit eSrc, MapUnit eDst)
+        : m_nMul(0)
+        , m_nDiv(0)
+        , m_nComma(0)
+        , m_bDirty(true)
+        , m_eSrcMU(eSrc)
+        , m_eDstMU(eDst)
+    {
+    }
+    OUString GetStr(tools::Long nVal) const;
+    static OUString GetUnitStr(MapUnit eUnit);
+    static OUString GetUnitStr(FieldUnit eUnit);
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */