File indexing completed on 2024-05-26 04:24:49
0001 0002 /* 0003 Copyright (c) 2003-2007 Clarence Dang <dang@kde.org> 0004 All rights reserved. 0005 0006 Redistribution and use in source and binary forms, with or without 0007 modification, are permitted provided that the following conditions 0008 are met: 0009 0010 1. Redistributions of source code must retain the above copyright 0011 notice, this list of conditions and the following disclaimer. 0012 2. Redistributions in binary form must reproduce the above copyright 0013 notice, this list of conditions and the following disclaimer in the 0014 documentation and/or other materials provided with the distribution. 0015 0016 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 0017 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 0018 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 0019 IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 0020 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 0021 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 0022 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 0023 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 0024 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 0025 THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 0026 */ 0027 0028 0029 #define DEBUG_KP_SELECTION 0 0030 0031 0032 #include "layers/selections/image/kpEllipticalImageSelection.h" 0033 0034 #include <QPainter> 0035 #include <QRegion> 0036 #include <QPainterPath> 0037 0038 0039 struct kpEllipticalImageSelectionPrivate 0040 { 0041 }; 0042 0043 0044 kpEllipticalImageSelection::kpEllipticalImageSelection ( 0045 const kpImageSelectionTransparency &transparency) 0046 : kpAbstractImageSelection (transparency), 0047 d (new kpEllipticalImageSelectionPrivate ()) 0048 { 0049 } 0050 0051 kpEllipticalImageSelection::kpEllipticalImageSelection (const QRect &rect, 0052 const kpImage &baseImage, 0053 const kpImageSelectionTransparency &transparency) 0054 : kpAbstractImageSelection (rect, baseImage, transparency), 0055 d (new kpEllipticalImageSelectionPrivate ()) 0056 { 0057 } 0058 0059 kpEllipticalImageSelection::kpEllipticalImageSelection (const QRect &rect, 0060 const kpImageSelectionTransparency &transparency) 0061 : kpAbstractImageSelection (rect, transparency), 0062 d (new kpEllipticalImageSelectionPrivate ()) 0063 { 0064 } 0065 0066 kpEllipticalImageSelection::kpEllipticalImageSelection (const kpEllipticalImageSelection &rhs) 0067 : kpAbstractImageSelection (), 0068 d (new kpEllipticalImageSelectionPrivate ()) 0069 { 0070 *this = rhs; 0071 } 0072 0073 kpEllipticalImageSelection &kpEllipticalImageSelection::operator= ( 0074 const kpEllipticalImageSelection &rhs) 0075 { 0076 kpAbstractImageSelection::operator= (rhs); 0077 0078 return *this; 0079 } 0080 0081 kpEllipticalImageSelection *kpEllipticalImageSelection::clone () const 0082 { 0083 kpEllipticalImageSelection *sel = new kpEllipticalImageSelection (); 0084 *sel = *this; 0085 return sel; 0086 } 0087 0088 kpEllipticalImageSelection::~kpEllipticalImageSelection () 0089 { 0090 delete d; 0091 } 0092 0093 //--------------------------------------------------------------------- 0094 0095 // public virtual [kpAbstractSelection] 0096 int kpEllipticalImageSelection::serialID () const 0097 { 0098 return SerialID; 0099 } 0100 0101 //--------------------------------------------------------------------- 0102 0103 // public virtual [kpAbstractSelection] 0104 bool kpEllipticalImageSelection::isRectangular () const 0105 { 0106 return false; 0107 } 0108 0109 //--------------------------------------------------------------------- 0110 0111 // public virtual [kpAbstractSelection] 0112 QPolygon kpEllipticalImageSelection::calculatePoints () const 0113 { 0114 Q_ASSERT (boundingRect ().isValid ()); 0115 0116 if (width () == 1 && height () == 1) 0117 { 0118 QPolygon ret; 0119 ret.append (topLeft ()); 0120 return ret; 0121 } 0122 0123 QPainterPath path; 0124 if (width () == 1 || height () == 1) 0125 { 0126 path.moveTo (x (), y ()); 0127 // This does not work when the width _and_ height are 1 since lineTo() 0128 // would not move at all. This is why we have a separate case for that 0129 // at the top of the method. 0130 path.lineTo (x () + width () - 1, y () + height () - 1); 0131 } 0132 else 0133 { 0134 // The adjusting is to fight QPainterPath::addEllipse() making 0135 // the ellipse 1 pixel higher and wider than specified. 0136 path.addEllipse (boundingRect ().adjusted (0, 0, -1, -1)); 0137 } 0138 0139 const QList <QPolygonF> polygons = path.toSubpathPolygons (); 0140 Q_ASSERT (polygons.size () == 1); 0141 0142 const QPolygonF& firstPolygonF = polygons.first (); 0143 return firstPolygonF.toPolygon (); 0144 } 0145 0146 //--------------------------------------------------------------------- 0147 0148 0149 // protected virtual [kpAbstractImageSelection] 0150 QRegion kpEllipticalImageSelection::shapeRegion () const 0151 { 0152 QRegion reg(calculatePoints()); 0153 return reg; 0154 } 0155 0156 //--------------------------------------------------------------------- 0157 0158 0159 // public virtual [kpAbstractSelection] 0160 bool kpEllipticalImageSelection::contains (const QPoint &point) const 0161 { 0162 if (!boundingRect ().contains (point)) { 0163 return false; 0164 } 0165 0166 return shapeRegion ().contains (point); 0167 } 0168 0169 //--------------------------------------------------------------------- 0170 0171 0172 // public virtual [kpAbstractSelection] 0173 void kpEllipticalImageSelection::paintBorder (QImage *destPixmap, const QRect &docRect, 0174 bool selectionFinished) const 0175 { 0176 if ( !boundingRect().isValid() ) { 0177 return; 0178 } 0179 0180 paintPolygonalBorder (calculatePoints (), 0181 destPixmap, docRect, 0182 selectionFinished); 0183 } 0184 0185 #include "moc_kpEllipticalImageSelection.cpp"