QColor Function::interpolateHSV(double delta, QColor const& col1, QColor const& col2) const
{
if (delta <= 0.0) return col1;
if (delta >= 1.0) return col2;
double h1, h2, s1, s2, v1, v2;
col1.getHsvF(&h1, &s1, &v1);
col2.getHsvF(&h2, &s2, &v2);
if (h1 < 0.0) h1 = h2;
if (h2 < 0.0) h2 = h1;
if (h1 < 0.0 && h2 < 0.0) { h1 = 0.0; h2 = 0.0; }
s1 += delta*(s2-s1);
v1 += delta*(v2-v1);
// For hue we need to work out which direction we are going on the wheel.
double dh(h2-h1);
if (dh > 0.5) {
dh -= 1.0;
}else if(dh < -0.5) {
dh += 1.0;
}
h1 += delta*dh;
if (h1 > 1.0) h1 -= 1.0;
if (h1 < 0.0) h1 += 1.0;
QColor color;
color.setHsvF(h1, s1, v1);
return color;
}
Gradient::Gradient(const QColor &c1, const QColor &c2, bool reverseHue) {
qreal h1, s1, v1, a1;
qreal h2, s2, v2, a2;
c1.getHsvF(&h1, &s1, &v1, &a1);
c2.getHsvF(&h2, &s2, &v2, &a2);
if (s1 < ACHROMATIC_THRESHOLD || v1 < ACHROMATIC_THRESHOLD) {
// color1 is achromatic
hue.set(0, h2);
} else if (s2 < ACHROMATIC_THRESHOLD || v2 < ACHROMATIC_THRESHOLD) {
// color 2 is achromatic
hue.set(0, h1);
} else {
qreal a = h2 - h1;
if (a > 0.5) {
a = a - 1;
} else if (a < -0.5) {
a = a + 1;
}
if (reverseHue) {
a = a - 1;
}
hue.set(a, h1);
}
sat.set(0, s1, 1, s2);
val.set(0, v1, 1, v2);
alpha.set(0, a1, 1, a2);
}
/**
* Update the gradient bar colors
*/
void ColorDialog::updateBars()
{
QColor col = color();
int r,g,b;
qreal h,s,v;
col.getRgb(&r,&g,&b);
col.getHsvF(&h,&s,&v);
if(h<0)
h = validhue_/360.0;
ui_->red->setColor1(QColor(0,g,b));
ui_->red->setColor2(QColor(255,g,b));
ui_->green->setColor1(QColor(r,0,b));
ui_->green->setColor2(QColor(r,255,b));
ui_->blue->setColor1(QColor(r,g,0));
ui_->blue->setColor2(QColor(r,g,255));
ui_->hue->setColorSaturation(s);
ui_->hue->setColorValue(v);
ui_->saturation->setColor1(QColor::fromHsvF(h,0,v));
ui_->saturation->setColor2(QColor::fromHsvF(h,1,v));
ui_->value->setColor1(QColor::fromHsvF(h,s,0));
ui_->value->setColor2(QColor::fromHsvF(h,s,1));
if(showalpha_) {
ui_->alpha->setColor1(QColor(r,g,b,0));
ui_->alpha->setColor2(QColor(r,g,b,255));
}
}
void GradientWidgetHue::updateHueFromColor(const QColor &col)
{
col.getHsvF(&hue,&saturation,&value,&alpha);
if(hue<0.0)
hue=0.0;
m_selected_color.setHsvF(hue,saturation,value,alpha);
updateCursorPosition();
}
QColor PrefDialog::Desaturate(QColor c)
{
qreal h;
qreal s;
qreal v;
qreal a;
c.getHsvF(&h, &s, &v, &a);
v = qMin((0.8 + v * 0.2), 1.0);
c.setHsvF(h, (s * 0.2), v, 1.0);
return c;
}
void GFX_SetBrightness(struct Tracker_Windows *tvisual, float how_much){
EditorWidget *editorwidget=(EditorWidget *)tvisual->os_visual.widget;
if(is_starting_up)
return;
return;
#if 0
float threshold = QColor(SETTINGS_read_string(talloc_format("color%d",15),"#d0d5d0")).valueF();
for(int i=0;i<15;i++){
QColor color = QColor(SETTINGS_read_string(talloc_format("color%d",i),"#d0d5d0"));
//QColor color = editorwidget->colors[i];
float value = color.valueF();
if (value > threshold)
color = color.lighter(scale(how_much, 0, 1, 0, 200));
else
color = color.darker(scale(how_much, 0, 1, 0, 200));
if (i!=11)
setColor((enum ColorNums)i, color.rgb());
printf("value for %d: %f\n",i,value);
//color.setLightntess(lightness
}
#else
how_much = scale(how_much,0,1,-1,1);
for(int i=0;i<16;i++){
QColor color = QColor(SETTINGS_read_string(talloc_format("color%d",i),"#d0d5d0"));
qreal h,s,v,a;
color.getHsvF(&h,&s,&v,&a);
float value = R_BOUNDARIES(0,v+how_much,1);
color.setHsvF(h, s, value, a);
//QColor color = editorwidget->colors[i];
setColor((enum ColorNums)i, color.rgb());
printf("value for %d: %f. s: %f, how_much: %f\n",i,value,s,how_much);
//color.setLightntess(lightness
}
#endif
updateAll(editorwidget);
tvisual->must_redraw = true;
}
int main(int argc, char *argv[]) {
QApplication App(argc, argv);
QImage MemoryImage("D:/Vyzkumak/Workspace/Qt/Qt/Debug/Picture.png");
QImage ShowImage("D:/Vyzkumak/Workspace/Qt/Qt/Debug/Picture.png");
QLabel label;
label.setPixmap(QPixmap::fromImage(ShowImage));
label.show();
int w = MemoryImage.width();
int h = MemoryImage.height();
start = time (NULL);
for (int j=0; j<1; j++){
qreal H, S, V;
QColor Color;
qreal cont=0;
for (int i=0; i<100; i++){
cont=cont+0.01;
for ( int x = 0; x < w; x++ ){
for ( int y = 0; y < h; y++ ){
QRgb Rgb = MemoryImage.pixel( x, y);
Color.setRgb(Rgb);
Color.getHsvF(&H, &S, &V);
qreal v=V*cont;
Color.setHsvF(H, S, v);
Rgb = Color.rgb();
ShowImage.setPixel(x, y, Rgb);
}
}
label.setPixmap(QPixmap::fromImage(ShowImage));
label.repaint();
}
}
end = time (NULL);
int length = (int) (end - start);
std::cout << "Length of rendering 100 frames was: " << length << " seconds.\n";
std::cout << "Average fps is: " << 100. / (float)length << " frames per seconds.\n";
App.exec();
}
void tst_QColor::setHsv()
{
QColor color;
for (int A = 0; A <= USHRT_MAX; ++A) {
{
// 0-255
int a = A >> 8;
color.setHsv(0, 0, 0, a);
QCOMPARE(color.alpha(), a);
int h, s, v, a2;
color.getHsv(&h, &s, &v, &a2);
QCOMPARE(a2, a);
}
{
// 0.0-1.0
qreal a = A / qreal(USHRT_MAX);
color.setHsvF(0.0, 0.0, 0.0, a);
QCOMPARE(color.alphaF(), a);
qreal h, s, v, a2;
color.getHsvF(&h, &s, &v, &a2);
QCOMPARE(a2, a);
}
}
for (int H = 0; H < 36000; ++H) {
{
// 0-255
int h = H / 100;
color.setHsv(h, 0, 0, 0);
QCOMPARE(color.hue(), h);
int h2, s, v, a;
color.getHsv(&h2, &s, &v, &a);
QCOMPARE(h2, h);
}
{
// 0.0-1.0
qreal h = H / 36000.0;
color.setHsvF(h, 0.0, 0.0, 0.0);
QCOMPARE(color.hueF(), h);
qreal h2, s, v, a;
color.getHsvF(&h2, &s, &v, &a);
QCOMPARE(h2, h);
}
}
for (int S = 0; S <= USHRT_MAX; ++S) {
{
// 0-255
int s = S >> 8;
color.setHsv(0, s, 0, 0);
QCOMPARE(color.saturation(), s);
int h, s2, v, a;
color.getHsv(&h, &s2, &v, &a);
QCOMPARE(s2, s);
}
{
// 0.0-1.0
qreal s = S / qreal(USHRT_MAX);
color.setHsvF(0.0, s, 0.0, 0.0);
QCOMPARE(color.saturationF(), s);
qreal h, s2, v, a;
color.getHsvF(&h, &s2, &v, &a);
QCOMPARE(s2, s);
}
}
for (int V = 0; V <= USHRT_MAX; ++V) {
{
// 0-255
int v = V >> 8;
color.setHsv(0, 0, v, 0);
QCOMPARE(color.value(), v);
int h, s, v2, a;
color.getHsv(&h, &s, &v2, &a);
QCOMPARE(v2, v);
}
{
// 0.0-1.0
qreal v = V / qreal(USHRT_MAX);
color.setHsvF(0.0, 0.0, v, 0.0);
QCOMPARE(color.valueF(), v);
qreal h, s, v2, a;
color.getHsvF(&h, &s, &v2, &a);
QCOMPARE(v2, v);
}
}
}
void Palette::setColor(const QColor &color)
{
if (color.isValid())
color.getHsvF(&_h, &_s, &_v, &_a);
}
void SkyQPainter::initStarImages()
{
QMap<char, QColor> ColorMap;
const int starColorIntensity = Options::starColorIntensity();
switch( Options::starColorMode() ) {
case 1: // Red stars.
ColorMap.insert( 'O', QColor::fromRgb( 255, 0, 0 ) );
ColorMap.insert( 'B', QColor::fromRgb( 255, 0, 0 ) );
ColorMap.insert( 'A', QColor::fromRgb( 255, 0, 0 ) );
ColorMap.insert( 'F', QColor::fromRgb( 255, 0, 0 ) );
ColorMap.insert( 'G', QColor::fromRgb( 255, 0, 0 ) );
ColorMap.insert( 'K', QColor::fromRgb( 255, 0, 0 ) );
ColorMap.insert( 'M', QColor::fromRgb( 255, 0, 0 ) );
break;
case 2: // Black stars.
ColorMap.insert( 'O', QColor::fromRgb( 0, 0, 0 ) );
ColorMap.insert( 'B', QColor::fromRgb( 0, 0, 0 ) );
ColorMap.insert( 'A', QColor::fromRgb( 0, 0, 0 ) );
ColorMap.insert( 'F', QColor::fromRgb( 0, 0, 0 ) );
ColorMap.insert( 'G', QColor::fromRgb( 0, 0, 0 ) );
ColorMap.insert( 'K', QColor::fromRgb( 0, 0, 0 ) );
ColorMap.insert( 'M', QColor::fromRgb( 0, 0, 0 ) );
break;
case 3: // White stars
ColorMap.insert( 'O', QColor::fromRgb( 255, 255, 255 ) );
ColorMap.insert( 'B', QColor::fromRgb( 255, 255, 255 ) );
ColorMap.insert( 'A', QColor::fromRgb( 255, 255, 255 ) );
ColorMap.insert( 'F', QColor::fromRgb( 255, 255, 255 ) );
ColorMap.insert( 'G', QColor::fromRgb( 255, 255, 255 ) );
ColorMap.insert( 'K', QColor::fromRgb( 255, 255, 255 ) );
ColorMap.insert( 'M', QColor::fromRgb( 255, 255, 255 ) );
case 0: // Real color
default: // And use real color for everything else
ColorMap.insert( 'O', QColor::fromRgb( 0, 0, 255 ) );
ColorMap.insert( 'B', QColor::fromRgb( 0, 200, 255 ) );
ColorMap.insert( 'A', QColor::fromRgb( 0, 255, 255 ) );
ColorMap.insert( 'F', QColor::fromRgb( 200, 255, 100 ) );
ColorMap.insert( 'G', QColor::fromRgb( 255, 255, 0 ) );
ColorMap.insert( 'K', QColor::fromRgb( 255, 100, 0 ) );
ColorMap.insert( 'M', QColor::fromRgb( 255, 0, 0 ) );
}
foreach( char color, ColorMap.keys() ) {
QPixmap BigImage( 15, 15 );
BigImage.fill( Qt::transparent );
QPainter p;
p.begin( &BigImage );
if ( Options::starColorMode() == 0 ) {
qreal h, s, v, a;
p.setRenderHint( QPainter::Antialiasing, false );
QColor starColor = ColorMap[color];
starColor.getHsvF(&h, &s, &v, &a);
for (int i = 0; i < 8; i++ ) {
for (int j = 0; j < 8; j++ ) {
qreal x = i - 7;
qreal y = j - 7;
qreal dist = sqrt( x*x + y*y ) / 7.0;
starColor.setHsvF(h,
qMin( qreal(1), dist < (10-starColorIntensity)/10.0 ? 0 : dist ),
v,
qMax( qreal(0), dist < (10-starColorIntensity)/20.0 ? 1 : 1-dist ) );
p.setPen( starColor );
p.drawPoint( i, j );
p.drawPoint( 14-i, j );
p.drawPoint( i, 14-j );
p.drawPoint (14-i, 14-j);
}
}
} else {
p.setRenderHint(QPainter::Antialiasing, true );
p.setPen( QPen(ColorMap[color], 2.0 ) );
p.setBrush( p.pen().color() );
p.drawEllipse( QRectF( 2, 2, 10, 10 ) );
}
p.end();
// Cache array slice
QPixmap** pmap = imageCache[ harvardToIndex(color) ];
for( int size = 1; size < nStarSizes; size++ ) {
if( !pmap[size] )
pmap[size] = new QPixmap();
*pmap[size] = BigImage.scaled( size, size, Qt::KeepAspectRatio, Qt::SmoothTransformation );
}
}
starColorMode = Options::starColorMode();
}
