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99 lines
2.8 KiB
99 lines
2.8 KiB
#include "kblendtest.h"
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#include <kapplication.h>
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#include <kimageeffect.h>
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#include <tqpainter.h>
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#include <tqdatetime.h>
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#include <tqstring.h>
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int cols = 3, rows = 3; // how many
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KBlendWidget::KBlendWidget(TQWidget *parent, const char *name)
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:TQWidget(parent, name)
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{
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bgnd = tqRgb(255, 255, 255);
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image = TQImage("testimage.png");
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resize(image.width()*2+60, image.height()*3+80);
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setBackgroundColor(bgnd);
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}
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void KBlendWidget::paintEvent(TQPaintEvent */*ev*/)
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{
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TQTime time;
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int it, ft;
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TQString say;
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image = TQImage("testimage.png");
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TQPainter p(this);
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p.setPen(Qt::black);
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// you see here use of anti_dir param (blend from down to up, here)
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time.start();
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it = time.elapsed();
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KImageEffect::blend(image, 0.2, bgnd, KImageEffect::VerticalGradient,true);
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ft = time.elapsed();
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say.setNum( ft - it); say += " ms, Vertical";
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p.drawImage(20, 20, image);
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p.drawText(5 , 15, say);
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image = TQImage("testimage.png");
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// here a negative initial intensity is used (1/2 of image is unaffected)
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it = time.elapsed();
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KImageEffect::blend(image, -0.5, bgnd, KImageEffect::HorizontalGradient);
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ft = time.elapsed();
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say.setNum( ft - it); say += " ms, Horizontal";
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p.drawImage(40+image.width(), 20, image);
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p.drawText(15+image.width() , 15, say);
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image = TQImage("testimage.png");
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it = time.elapsed();
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KImageEffect::blend(image, 0., bgnd, KImageEffect::DiagonalGradient,true);
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ft = time.elapsed();
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say.setNum( ft - it); say += " ms, Diagonal";
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p.drawImage(20, 40+image.height(), image);
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p.drawText(5 , 35+image.height(), say);
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image = TQImage("testimage.png");
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it = time.elapsed();
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KImageEffect::blend(image, 0.1, bgnd, KImageEffect::CrossDiagonalGradient);
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ft = time.elapsed();
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say.setNum( ft - it); say += " ms, CrossDiagonal";
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p.drawImage(40+image.width(), 40+image.height(), image);
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p.drawText(25+image.width() , 35 + image.height(), say);
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image = TQImage("testimage.png");
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it = time.elapsed();
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KImageEffect::blend(image, -0.6, bgnd, KImageEffect::RectangleGradient);
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ft = time.elapsed();
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say.setNum( ft - it); say += " ms, Rectangle";
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p.drawImage(20, 60+2*image.height(), image);
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p.drawText(5 , 55+2*image.height(), say);
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image = TQImage("testimage.png");
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it = time.elapsed();
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KImageEffect::blend(image, 0.2, bgnd, KImageEffect::EllipticGradient);
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ft = time.elapsed();
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say.setNum( ft - it); say += " ms, Elliptic";
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p.drawImage(40+image.width(), 60+2*image.height(), image);
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p.drawText(25+image.width(), 55+2*image.height(), say);
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p.end();
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}
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int main(int argc, char **argv)
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{
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KApplication app(argc, argv, "KBlendTest");
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KBlendWidget w;
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app.setMainWidget(&w);
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w.show();
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return(app.exec());
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}
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