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/***************************************************************************
* This file is part of Robocut. *
* Copyright (C) 2010 Tim Hutt <tdhutt@gmail.com> *
* Copyright (C) 2010 Markus Schulz <schulz@alpharesearch.de> *
* *
* 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 3 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 St, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include "PathPaintPage.h"
#include "PathPaintEngine.h"
#include <QDebug>
uint qHash(const QPolygonF& key)
{
QByteArray repr;
for (int i = 0; i < key.size(); ++i)
{
double x = key[i].x();
double y = key[i].y();
repr.append(reinterpret_cast<char*>(&x), sizeof(x));
repr.append(reinterpret_cast<char*>(&y), sizeof(y));
}
return qHash(repr);
}
PathPaintDevice::PathPaintDevice(double widthInMm, double heightInMm, double pixelsPerMm)
{
engine = NULL;
width = widthInMm;
height = heightInMm;
pathsClipped = false;
ppm = pixelsPerMm;
if (ppm == 0.0)
ppm = 1.0;
}
PathPaintDevice::~PathPaintDevice()
{
if (engine)
delete engine;
}
void PathPaintDevice::addPath(const QPolygonF& path)
{
if (pagePathSet.contains(path))
return;
pagePathSet.insert(path);
pagePaths.append(path);
// Clip the path.
for (int j = 0; j < pagePaths.back().size(); ++j)
{
// pagePaths are in mm, so convert from pixels to mm.
pagePaths.back()[j] /= ppm;
if (pagePaths.back()[j].x() < 0.0)
{
pathsClipped = true;
pagePaths.back()[j].setX(0.0);
}
if (pagePaths.back()[j].y() < 0.0)
{
pathsClipped = true;
pagePaths.back()[j].setY(0.0);
}
if (pagePaths.back()[j].x() > width)
{
pathsClipped = true;
pagePaths.back()[j].setX(width);
}
if (pagePaths.back()[j].y() > height)
{
pathsClipped = true;
pagePaths.back()[j].setY(height);
}
}
}
QPaintEngine* PathPaintDevice::paintEngine() const
{
if (!engine)
engine = new PathPaintEngine(const_cast<PathPaintDevice*>(this));
return engine;
}
QList<QPolygonF> PathPaintDevice::paths()
{
return pagePaths;
}
int PathPaintDevice::metric(PaintDeviceMetric metric) const
{
switch (metric)
{
// Width in pixels.
case PdmWidth:
return width * ppm;
case PdmHeight:
return height * ppm;
case PdmWidthMM:
return width;
case PdmHeightMM:
return height;
case PdmNumColors:
return 2;
case PdmDepth:
return 1;
case PdmDpiX:
return 25.4 * ppm; // Convert to inches.
case PdmDpiY:
return 25.4 * ppm;
case PdmPhysicalDpiX:
return 25.4 * ppm;
case PdmPhysicalDpiY:
return 25.4 * ppm;
}
return 0;
}
bool PathPaintDevice::clipped() const
{
return pathsClipped;
}
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