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koffice/krita/ui/kis_boundary_painter.cc

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/*
* Copyright (c) 2005 Bart Coppens <kde@bartcoppens.be>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <qpixmap.h>
#include <qpainter.h>
#include "kis_boundary.h"
#include "kis_boundary_painter.h"
#include "kis_canvas.h"
#include "kis_canvas_painter.h"
QPixmap KisBoundaryPainter::createPixmap(const KisBoundary& boundary, int w, int h)
{
QPixmap target(w, h);
KisCanvasPainter painter(&target);
painter.eraseRect(0, 0, w, h);
paint(boundary, painter);
painter.end();
return target;
}
void KisBoundaryPainter::paint(const KisBoundary& boundary, KisCanvasPainter& painter)
{
KisBoundary::PointPairListList::const_iterator it = boundary.m_horSegments.constBegin();
KisBoundary::PointPairListList::const_iterator end = boundary.m_horSegments.constEnd();
// Horizontal
while (it != end) {
KisBoundary::PointPairList::const_iterator lineIt = (*it).constBegin();
KisBoundary::PointPairList::const_iterator lineEnd = (*it).constEnd();
while (lineIt != lineEnd) {
int x1 = (*lineIt).first.floorX();
int y = (*lineIt).first.floorY();
int x2 = x1 + (*lineIt).second;
painter.drawLine(x1, y, x2, y);
painter.drawPoint(x2, y);
++lineIt;
}
++it;
}
// Vertical
it = boundary.m_vertSegments.constBegin();
end = boundary.m_vertSegments.constEnd();
while (it != end) {
KisBoundary::PointPairList::const_iterator lineIt = (*it).constBegin();
KisBoundary::PointPairList::const_iterator lineEnd = (*it).constEnd();
while (lineIt != lineEnd) {
int x = (*lineIt).first.floorX();
int y1 = (*lineIt).first.floorY();
int y2 = y1 + (*lineIt).second;
painter.drawLine(x, y1, x, y2);
painter.drawPoint(x, y2);
++lineIt;
}
++it;
}
}