1 files changed, 98 insertions, 0 deletions
diff --git a/kdeui/tests/kblendtest.cpp b/kdeui/tests/kblendtest.cpp
new file mode 100644
index 000000000..f12d65b2b
--- /dev/null
+++ b/kdeui/tests/kblendtest.cpp
@@ -0,0 +1,98 @@
+#include "kblendtest.h"
+#include <kapplication.h>
+#include <kimageeffect.h>
+#include <qpainter.h>
+#include <qdatetime.h>
+#include <qstring.h>
+
+int cols = 3, rows = 3; // how many
+
+KBlendWidget::KBlendWidget(QWidget *parent, const char *name)
+  :QWidget(parent, name)
+{
+
+    bgnd = qRgb(255, 255, 255);
+
+    image = QImage("testimage.png");
+
+    resize(image.width()*2+60, image.height()*3+80);
+    setBackgroundColor(bgnd);
+}
+
+void KBlendWidget::paintEvent(QPaintEvent */*ev*/)
+{
+    QTime time;
+    int it, ft;
+    QString say;
+
+    image = QImage("testimage.png");
+
+    QPainter p(this);
+    p.setPen(Qt::black);
+
+    // you see here use of anti_dir param (blend from down to up, here)
+    time.start();
+    it = time.elapsed();
+    KImageEffect::blend(image, 0.2, bgnd, KImageEffect::VerticalGradient,true);
+    ft = time.elapsed();
+    say.setNum( ft - it); say += " ms, Vertical";
+    p.drawImage(20, 20, image);
+    p.drawText(5 , 15, say);
+
+    image = QImage("testimage.png");
+
+    // here a negative initial intensity is used (1/2 of image is unaffected)
+    it = time.elapsed();
+    KImageEffect::blend(image, -0.5, bgnd, KImageEffect::HorizontalGradient);
+    ft = time.elapsed();
+    say.setNum( ft - it); say += " ms, Horizontal";
+    p.drawImage(40+image.width(), 20, image);
+    p.drawText(15+image.width() , 15, say);
+
+    image = QImage("testimage.png");
+
+    it = time.elapsed();
+    KImageEffect::blend(image, 0., bgnd, KImageEffect::DiagonalGradient,true);
+    ft = time.elapsed();
+    say.setNum( ft - it); say += " ms, Diagonal";
+    p.drawImage(20, 40+image.height(), image);
+    p.drawText(5 , 35+image.height(), say);
+
+    image = QImage("testimage.png");
+
+    it = time.elapsed();
+    KImageEffect::blend(image, 0.1, bgnd, KImageEffect::CrossDiagonalGradient);
+    ft = time.elapsed();
+    say.setNum( ft - it); say += " ms, CrossDiagonal";
+    p.drawImage(40+image.width(), 40+image.height(), image);
+    p.drawText(25+image.width() , 35 + image.height(), say);
+
+    image = QImage("testimage.png");
+
+    it = time.elapsed();
+    KImageEffect::blend(image, -0.6, bgnd, KImageEffect::RectangleGradient);
+    ft = time.elapsed();
+    say.setNum( ft - it); say += " ms, Rectangle";
+    p.drawImage(20, 60+2*image.height(), image);
+    p.drawText(5 , 55+2*image.height(), say);
+
+    image = QImage("testimage.png");
+
+    it = time.elapsed();
+    KImageEffect::blend(image, 0.2, bgnd, KImageEffect::EllipticGradient);
+    ft = time.elapsed();
+    say.setNum( ft - it); say += " ms, Elliptic";
+    p.drawImage(40+image.width(), 60+2*image.height(), image);
+    p.drawText(25+image.width(), 55+2*image.height(), say);
+    p.end();
+}
+
+int main(int argc, char **argv)
+{
+    KApplication app(argc, argv, "KBlendTest");
+    KBlendWidget w;
+    app.setMainWidget(&w);
+    w.show();
+    return(app.exec());
+}
+