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/***************************************************************************
kzcolorselector.cpp - description
-------------------
begin : Fri Jul 14 2000
copyright : (C) 2000 by Artur Rataj
email : art@zeus.polsl.gliwice.pl
***************************************************************************/
/***************************************************************************
* *
* 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 <tqpainter.h>
#include <tqimage.h>
#include <kimageeffect.h>
#include <kpalette.h>
#include "main.h"
#include "kzcolorselector.h"
KZColorSelector::KZColorSelector(Qt::Orientation o, TQWidget *parent, const char *name) :
KSelector(o, parent, name) {
baseColorH = -1;
baseColorS = 0;
baseColorV = 0;
pixmap.setOptimization( TQPixmap::BestOptim );
}
KZColorSelector::~KZColorSelector() {
}
void KZColorSelector::setType(const int type) {
this->type = type;
switch(this->type) {
case TYPE_H:
setRange(0, HSV_MAX_H_VALUE);
break;
case TYPE_S:
setRange(0, HSV_MAX_S_VALUE);
break;
case TYPE_V:
setRange(0, HSV_MAX_V_VALUE);
break;
}
}
void KZColorSelector::updateContents() {
drawPalette(&pixmap);
tqrepaint(false);
}
void KZColorSelector::resizeEvent(TQResizeEvent*) {
updateContents();
}
void KZColorSelector::drawContents(TQPainter* painter) {
painter->drawPixmap(contentsRect().x(), contentsRect().y(), pixmap);
}
void KZColorSelector::setBaseColor(const TQColor& color) {
color.hsv(&baseColorH, &baseColorS, &baseColorV);
}
void KZColorSelector::setBaseColorHsv(const int colorH,
const int colorS, const int colorV) {
baseColorH = colorH;
baseColorS = colorS;
baseColorV = colorV;
}
void KZColorSelector::updatePointerPos() {
int pos;
switch(type) {
case TYPE_H:
pos = baseColorH;
if(pos < 0)
pos = 0;
break;
case TYPE_S:
pos = baseColorS;
break;
case TYPE_V:
pos = baseColorV;
break;
default:
pos = 0;
break;
}
setValue(pos);
}
void KZColorSelector::setColor(TQColor* const color, const int y) {
int ySize = contentsRect().height();
switch(type) {
case TYPE_H:
color->setHsv(( ySize - 1 - y )*360/ySize, baseColorS, baseColorV);
break;
case TYPE_S:
color->setHsv(baseColorH, ( ySize - 1 - y )*256/ySize, baseColorV);
break;
case TYPE_V:
color->setHsv(baseColorH, baseColorS, ( ySize - 1 - y )*256/ySize);
break;
}
}
TQColor* KZColorSelector::getStandardColorsPalette() {
TQColor* palette = new TQColor[( int )STANDARD_PALETTE_SIZE];
int i = 0;
palette[i++] = TQt::red;
palette[i++] = TQt::green;
palette[i++] = TQt::blue;
palette[i++] = TQt::cyan;
palette[i++] = TQt::magenta;
palette[i++] = TQt::yellow;
palette[i++] = TQt::darkRed;
palette[i++] = TQt::darkGreen;
palette[i++] = TQt::darkBlue;
palette[i++] = TQt::darkCyan;
palette[i++] = TQt::darkMagenta;
palette[i++] = TQt::darkYellow;
palette[i++] = TQt::white;
palette[i++] = TQt::lightGray;
palette[i++] = TQt::gray;
palette[i++] = TQt::darkGray;
palette[i++] = TQt::black;
return palette;
}
void KZColorSelector::drawPalette(TQPixmap* pixmap) {
int xSize = contentsRect().width();
int ySize = contentsRect().height();
TQImage image(xSize, ySize, 32);
TQColor color;
int x;
int y;
for (y = 0; y < ySize; ++y)
{
unsigned int* p = (unsigned int*)image.scanLine(y);
for(x = 0; x < xSize; ++x)
{
setColor(&color, y);
*p = color.rgb();
++p;
}
}
if (TQColor::numBitPlanes() <= 8)
{
TQColor* standardPalette = getStandardColorsPalette();
KImageEffect::dither(image, standardPalette, STANDARD_PALETTE_SIZE);
delete[] standardPalette;
}
pixmap->convertFromImage(image);
}
#include "kzcolorselector.moc"
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