1 files changed, 118 insertions, 0 deletions
diff --git a/noncore/styles/liquid/effects.cpp b/noncore/styles/liquid/effects.cpp
new file mode 100644
index 0000000..0c76fbc
--- a/dev/null
+++ b/noncore/styles/liquid/effects.cpp
@@ -0,0 +1,118 @@
+
+#include <qimage.h>
+#include <qpixmap.h>
+#include <qcolor.h>
+
+#include "effects.h"
+
+
+
+QImage & QImageEffect::fade (QImage & img, float val, const QColor & color)
+{
+	if ( img. width ( ) == 0 || img. height ( ) == 0 )
+		return img;
+
+// We don't handle bitmaps
+      if (img.depth () == 1)
+        return img;
+
+    unsigned char
+    tbl[256];
+    for (int i = 0; i < 256; i++)
+        tbl[i] = (int) (val * i + 0.5);
+
+    int
+    red =
+    color.
+    red ();
+    int
+    green =
+    color.
+    green ();
+    int
+    blue =
+    color.
+    blue ();
+
+    QRgb col;
+    int
+    r,
+    g,
+    b,
+    cr,
+    cg,
+    cb;
+
+    if (img.depth () <= 8)
+    {
+          			// pseudo color
+	    for (int i = 0; i < img.numColors (); i++)
+	{
+	        col = img.color (i);
+	        cr = qRed (col);
+	  cg = qGreen (col);
+		cb=qBlue(col);
+			        if (cr > red)
+	            r = cr - tbl[cr - red];
+	        
+	  else
+	            r = cr + tbl[red - cr];
+	        if (cg > green)
+	            g = cg - tbl[cg - green];
+	        
+	  else
+	            g = cg + tbl[green - cg];
+	        if (cb > blue)
+	            b = cb - tbl[cb - blue];
+	        
+	  else
+	            b = cb + tbl[blue - cb];
+	        img.setColor (i, qRgb (r, g, b));
+	    }
+
+      }
+  else
+    {
+          			// truecolor
+	    for (int y = 0; y < img.height (); y++)
+	{
+	        QRgb * data = (QRgb *) img.scanLine (y);
+	        for (int x = 0; x < img.width (); x++)
+	    {
+	              col = *data;
+	              cr = qRed (col);
+cg=qGreen(col);
+cb=qBlue(col);
+	              if (cr > red)
+		          r = cr - tbl[cr - red];
+	              
+	      else
+		          r = cr + tbl[red - cr];
+	              if (cg > green)
+		          g = cg - tbl[cg - green];
+	              
+	      else
+		          g = cg + tbl[green - cg];
+	              if (cb > blue)
+		          b = cb - tbl[cb - blue];
+	              
+	      else
+		          b = cb + tbl[blue - cb];
+	              *data++ = qRgb (r, g, b);
+	          }
+	    }
+      }
+
+    return img;
+}
+
+
+
+QPixmap& QPixmapEffect::fade(QPixmap &pixmap, float val, const QColor &color)
+{
+	QImage img = pixmap.convertToImage();
+	QImageEffect::fade(img, val, color);
+	pixmap.convertFromImage(img);
+   
+	return pixmap;
+}