File indexing completed on 2024-05-12 04:21:25
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 #include "kpToolFlowPixmapBase.h" 0030 0031 #include "imagelib/kpColor.h" 0032 #include "document/kpDocument.h" 0033 #include "imagelib/kpPainter.h" 0034 #include "pixmapfx/kpPixmapFX.h" 0035 #include "commands/tools/flow/kpToolFlowCommand.h" 0036 0037 //--------------------------------------------------------------------- 0038 0039 kpToolFlowPixmapBase::kpToolFlowPixmapBase (const QString &text, const QString &description, 0040 int key, 0041 kpToolEnvironment *environ, QObject *parent, const QString &name) 0042 : kpToolFlowBase (text, description, key, environ, parent, name) 0043 { 0044 } 0045 0046 //--------------------------------------------------------------------- 0047 0048 QRect kpToolFlowPixmapBase::drawLine (const QPoint &thisPoint, const QPoint &lastPoint) 0049 { 0050 QRect docRect = kpPainter::normalizedRect(thisPoint, lastPoint); 0051 docRect = neededRect (docRect, qMax (brushWidth (), brushHeight ())); 0052 kpImage image = document ()->getImageAt (docRect); 0053 0054 0055 const QList <QPoint> points = kpPainter::interpolatePoints (lastPoint, thisPoint, 0056 brushIsDiagonalLine ()); 0057 0058 for (const QPoint &p : points) 0059 { 0060 const QPoint point = 0061 hotRectForMousePointAndBrushWidthHeight(p, brushWidth(), brushHeight()) 0062 .topLeft() - docRect.topLeft(); 0063 0064 // OPT: This may be redrawing pixels that were drawn on a previous 0065 // iteration, since the brush is usually bigger than 1 pixel. 0066 // Maybe we could use QRegion to determine all the non-intersecting 0067 // regions and only draw each region once. 0068 // 0069 // Try this at least for the easy case of the Eraser, which has 0070 // square, simply-filled brushes. Profiling needs to be done as 0071 // QRegion is known to be a CPU hog. 0072 brushDrawFunction () (&image, point, brushDrawFunctionData ()); 0073 } 0074 0075 0076 document ()->setImageAt (image, docRect.topLeft ()); 0077 return docRect; 0078 } 0079 0080 //--------------------------------------------------------------------- 0081 0082 #include "moc_kpToolFlowPixmapBase.cpp"