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/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/
/***************************************************************************
colorchart.cpp - description
-------------------
begin : Sat Sep 15 2001
copyright : (C) 2001 by Franz Schmid
email : Franz.Schmid@altmuehlnet.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 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "colorchart.h"
#include <QPainter>
#include "util_color.h"
#include "scribusdoc.h"
ColorChart::ColorChart(QWidget *parent, ScribusDoc* doc) : QWidget(parent), m_doc(doc)
{
Xp = 0;
Yp = 0;
doDrawMark = false;
setAutoFillBackground(false);
drawPalette(255);
}
void ColorChart::mouseMoveEvent(QMouseEvent *m)
{
drawMark(m->x(), m->y());
emit ColorVal(m->x() * 359 / width(), m->y() * 255 / height(), true);
}
void ColorChart::mousePressEvent(QMouseEvent *m)
{
drawMark(m->x(), m->y());
emit ColorVal(m->x() * 359 / width(), m->y() * 255 / height(), true);
}
void ColorChart::mouseReleaseEvent(QMouseEvent *m)
{
drawMark(m->x(), m->y());
emit ColorVal(m->x() * 359 / width(), m->y() * 255 / height(), true);
}
void ColorChart::paintEvent(QPaintEvent *e)
{
QPainter p;
QPainter p2;
p.begin(this);
p.setClipRect(e->rect());
QImage tmp = QImage(width(), height(), QImage::Format_ARGB32);
p2.begin(&tmp);
p2.drawPixmap(0, 0, pmx);
if (doDrawMark)
{
p2.setPen(QPen(Qt::black, 1, Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin));
p2.drawLine(Xp-5, Yp-5, Xp-1, Yp-1);
p2.drawLine(Xp-5, Yp+5, Xp-1, Yp+1);
p2.drawLine(Xp+2, Yp+2, Xp+6, Yp+6);
p2.drawLine(Xp+2, Yp-2, Xp+6, Yp-6);
}
p2.end();
p.drawImage(0, 0, tmp);
p.end();
doDrawMark = false;
}
void ColorChart::drawMark(int x, int y)
{
Xp = x;
Yp = y;
doDrawMark = true;
repaint();
}
void ColorChart::setMark(int h, int s)
{
drawMark(h * width() / 359, (255-s) * height() / 255);
}
void ColorChart::drawPalette(int val)
{
int xSize = width();
int ySize = height();
QImage image(xSize, ySize, QImage::Format_ARGB32);
QColor color;
int x;
int y;
for (y = 0; y < ySize; ++y)
{
unsigned int* p = reinterpret_cast<unsigned int*>(image.scanLine(y));
for(x = 0; x < xSize; ++x)
{
color.setHsv(360*x/xSize, 256*( ySize - 1 - y )/ySize, val);
*p = color.rgb();
++p;
}
}
pmx=QPixmap::fromImage(ProofImage(&image, m_doc));
repaint();
}
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