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#include "kgradienttest.h"
#include <kapplication.h>
#include <kpixmapeffect.h>
#include <qpainter.h>
#include <qdatetime.h>
#include <qstring.h>
int cols = 3, rows = 3; // how many
void KGradientWidget::paintEvent(QPaintEvent */*ev*/)
{
QTime time;
int it, ft;
QString say;
QColor ca = Qt::black, cb = Qt::blue;
int x = 0, y = 0;
pix.resize(width()/cols, height()/rows);
QPainter p(this);
p.setPen(Qt::white);
// draw once, so that the benchmarking be fair :-)
KPixmapEffect::gradient(pix,ca, cb, KPixmapEffect::VerticalGradient);
// vertical
time.start();
it = time.elapsed();
KPixmapEffect::gradient(pix,ca, cb, KPixmapEffect::VerticalGradient);
ft = time.elapsed();
say.setNum( ft - it); say += " ms, Vertical";
p.drawPixmap(x*width()/cols, y*height()/rows, pix);
p.drawText(5 + (x++)*width()/cols, 15+y*height()/rows, say); // augment x
// horizontal
it = time.elapsed();
KPixmapEffect::gradient(pix,ca, cb, KPixmapEffect::HorizontalGradient);
ft = time.elapsed() ;
say.setNum( ft - it); say += " ms, Horizontal";
p.drawPixmap(x*width()/cols, y*height()/rows, pix);
p.drawText(5+(x++)*width()/cols, 15+y*height()/rows, say);
// elliptic
it = time.elapsed();
KPixmapEffect::gradient(pix, ca, cb, KPixmapEffect::EllipticGradient);
ft = time.elapsed() ;
say.setNum( ft - it); say += " ms, Elliptic";
p.drawPixmap(x*width()/cols, y*height()/rows, pix);
p.drawText(5+(x++)*width()/cols, 15+y*height()/rows, say);
y++; // next row
x = 0; // reset the columns
// diagonal
it = time.elapsed();
KPixmapEffect::gradient(pix,ca, cb, KPixmapEffect::DiagonalGradient);
ft = time.elapsed();
say.setNum( ft - it); say += " ms, Diagonal";
p.drawPixmap(x*width()/cols, y*height()/rows, pix);
p.drawText(5+(x++)*width()/cols, 15+y*height()/rows, say);
// crossdiagonal
it = time.elapsed();
KPixmapEffect::gradient(pix,ca, cb, KPixmapEffect::CrossDiagonalGradient);
ft = time.elapsed();
say.setNum( ft - it); say += " ms, CrossDiagonal";
p.drawPixmap(width()/cols, y*height()/rows, pix);
p.drawText(5+(x++)*width()/cols, 15+y*height()/rows, say);
y++; // next row
x = 0; // reset the columns
// pyramidal
it = time.elapsed();
KPixmapEffect::gradient(pix, ca, cb, KPixmapEffect::PyramidGradient);
ft = time.elapsed();
say.setNum( ft - it); say += " ms, Pyramid";
p.drawPixmap(x*width()/cols, y*height()/rows, pix);
p.drawText(5+(x++)*width()/cols, 15+y*height()/rows, say);
// pattern
it = time.elapsed();
KPixmapEffect::gradient(pix, ca, cb, KPixmapEffect::RectangleGradient);
ft = time.elapsed();
say.setNum( ft - it); say += " ms, Rectangle";
p.drawPixmap(x*width()/cols, y*height()/rows, pix);
p.drawText(5+(x++)*width()/rows, 15+y*height()/rows, say);
// crosspipe
it = time.elapsed();
KPixmapEffect::gradient(pix, ca, cb, KPixmapEffect::PipeCrossGradient);
ft = time.elapsed();
say.setNum( ft - it); say += " ms, PipeCross";
p.drawPixmap(x*width()/cols, y*height()/rows, pix);
p.drawText(5+(x++)*width()/rows, 15+y*height()/rows, say);
}
int main(int argc, char **argv)
{
KApplication *app = new KApplication(argc, argv, "KGradientTest");
KGradientWidget w;
w.resize(250 * cols, 250 * rows);
app->setMainWidget(&w);
w.show();
return(app->exec());
}
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