- fixed some "unused variable" warnings from the KDE code

- replaced sqrt() calls QPE's qSqrt()

1 files changed, 6 insertions, 6 deletions

diff --git a/noncore/styles/theme/ogfxeffect.cpp b/noncore/styles/theme/ogfxeffect.cpp
index a991728..55f3c1f 100644
--- a/noncore/styles/theme/ogfxeffect.cpp
+++ b/noncore/styles/theme/ogfxeffect.cpp
@@ -1,324 +1,324 @@
 /* This file is part of the KDE libraries
     Copyright (C) 1998, 1999 Christian Tibirna <ctibirna@total.net>
               (C) 1998, 1999 Daniel M. Duley <mosfet@kde.org>
               (C) 1998, 1999 Dirk A. Mueller <mueller@kde.org>
 
 */
 
 // $Id$
 
 #include <qimage.h>
 #include <qpainter.h>
 
+#include <qpe/qmath.h>
+
 #include "ogfxeffect.h"
 
 
 //======================================================================
 //
 // Gradient effects
 //
 //======================================================================
 
 
 QPixmap& OGfxEffect::gradient(QPixmap &pixmap, const QColor &ca,
-        const QColor &cb, GradientType eff, int ncols)
+        const QColor &cb, GradientType eff, int /*ncols*/)
 {
     if(pixmap.depth() > 8 &&
        (eff == VerticalGradient || eff == HorizontalGradient)) {
 
         int rDiff, gDiff, bDiff;
         int rca, gca, bca /*, rcb, gcb, bcb*/;
 
         register int x, y;
 
         rDiff = (/*rcb = */ cb.red())   - (rca = ca.red());
         gDiff = (/*gcb = */ cb.green()) - (gca = ca.green());
         bDiff = (/*bcb = */ cb.blue())  - (bca = ca.blue());
 
         register int rl = rca << 16;
         register int gl = gca << 16;
         register int bl = bca << 16;
 
         int rcdelta = ((1<<16) / (eff == VerticalGradient ? pixmap.height() : pixmap.width())) * rDiff;
         int gcdelta = ((1<<16) / (eff == VerticalGradient ? pixmap.height() : pixmap.width())) * gDiff;
         int bcdelta = ((1<<16) / (eff == VerticalGradient ? pixmap.height() : pixmap.width())) * bDiff;
 
         QPainter p(&pixmap);
 
         // these for-loops could be merged, but the if's in the inner loop
         // would make it slow
         switch(eff) {
         case VerticalGradient:
             for ( y = 0; y < pixmap.height(); y++ ) {
                 rl += rcdelta;
                 gl += gcdelta;
                 bl += bcdelta;
 
                 p.setPen(QColor(rl>>16, gl>>16, bl>>16));
                 p.drawLine(0, y, pixmap.width()-1, y);
             }
             break;
         case HorizontalGradient:
             for( x = 0; x < pixmap.width(); x++) {
                 rl += rcdelta;
                 gl += gcdelta;
                 bl += bcdelta;
 
                 p.setPen(QColor(rl>>16, gl>>16, bl>>16));
                 p.drawLine(x, 0, x, pixmap.height()-1);
             }
             break;
         default:
             ;
         }
     }
     else {
 //        QImage image = OGfxEffect::gradient(pixmap.size(), ca, cb,
 //                                              (OGfxEffect::GradientType) eff, ncols);
 //        pixmap.convertFromImage(image);
     }
 
     return pixmap;
 }
 
 
 //======================================================================
 //
 // Blend effects
 //
 //======================================================================
 
 
 QPixmap& OGfxEffect::blend(QPixmap &pixmap, float initial_intensity,
                           const QColor &bgnd, GradientType eff,
-                          bool anti_dir, int ncols)
+                          bool anti_dir, int /*ncols*/)
 {
     QImage image = pixmap.convertToImage();
     OGfxEffect::blend(image, initial_intensity, bgnd, eff, anti_dir);
 
-    unsigned int tmp;
-
         if ( pixmap. depth ( ) <= 8 )
                 image. convertDepth ( pixmap. depth ( ));
 
     pixmap.convertFromImage(image);
 
     return pixmap;
 }
 
 
 QImage& OGfxEffect::blend(QImage &image, float initial_intensity,
                             const QColor &bgnd, GradientType eff,
                             bool anti_dir)
 {
     if (image.width() == 0 || image.height() == 0) {
       qDebug ( "Invalid image\n" );
       return image;
     }
 
     int r_bgnd = bgnd.red(), g_bgnd = bgnd.green(), b_bgnd = bgnd.blue();
     int r, g, b;
     int ind;
 
     unsigned int xi, xf, yi, yf;
     unsigned int a;
 
     // check the boundaries of the initial intesity param
     float unaffected = 1;
     if (initial_intensity >  1) initial_intensity =  1;
     if (initial_intensity < -1) initial_intensity = -1;
     if (initial_intensity < 0) {
         unaffected = 1. + initial_intensity;
         initial_intensity = 0;
     }
 
 
     float intensity = initial_intensity;
     float var = 1. - initial_intensity;
 
     if (anti_dir) {
         initial_intensity = intensity = 1.;
         var = -var;
     }
 
     register int x, y;
 
     unsigned int *data =  (unsigned int *)image.bits();
 
     if( eff == VerticalGradient || eff == HorizontalGradient ) {
 
         // set the image domain to apply the effect to
         xi = 0, xf = image.width();
         yi = 0, yf = image.height();
         if (eff == VerticalGradient) {
             if (anti_dir) yf = (int)(image.height() * unaffected);
             else yi = (int)(image.height() * (1 - unaffected));
         }
         else {
             if (anti_dir) xf = (int)(image.width() * unaffected);
             else xi = (int)(image.height() * (1 - unaffected));
         }
 
         var /= (eff == VerticalGradient?yf-yi:xf-xi);
 
         for (y = yi; y < (int)yf; y++) {
             intensity = eff == VerticalGradient? intensity + var :
                 initial_intensity;
             for (x = xi; x < (int)xf ; x++) {
                 if (eff == HorizontalGradient) intensity += var;
                 ind = x + image.width()  * y ;
                 r = qRed  (data[ind]) + (int)(intensity *
                                               (r_bgnd - qRed  (data[ind])));
                 g = qGreen(data[ind]) + (int)(intensity *
                                               (g_bgnd - qGreen(data[ind])));
                 b = qBlue (data[ind]) + (int)(intensity *
                                               (b_bgnd - qBlue (data[ind])));
                 if (r > 255) r = 255; if (r < 0 ) r = 0;
                 if (g > 255) g = 255; if (g < 0 ) g = 0;
                 if (b > 255) b = 255; if (b < 0 ) b = 0;
                 a = qAlpha(data[ind]);
                 data[ind] = qRgba(r, g, b, a);
             }
         }
     }
     else if (eff == DiagonalGradient  || eff == CrossDiagonalGradient) {
         float xvar = var / 2 / image.width();  // / unaffected;
         float yvar = var / 2 / image.height(); // / unaffected;
         float tmp;
 
         for (x = 0; x < image.width() ; x++) {
             tmp =  xvar * (eff == DiagonalGradient? x : image.width()-x-1);
             for (y = 0; y < image.height() ; y++) {
                 intensity = initial_intensity + tmp + yvar * y;
                 ind = x + image.width()  * y ;
                 r = qRed  (data[ind]) + (int)(intensity *
                                               (r_bgnd - qRed  (data[ind])));
                 g = qGreen(data[ind]) + (int)(intensity *
                                               (g_bgnd - qGreen(data[ind])));
                 b = qBlue (data[ind]) + (int)(intensity *
                                               (b_bgnd - qBlue (data[ind])));
                 if (r > 255) r = 255; if (r < 0 ) r = 0;
                 if (g > 255) g = 255; if (g < 0 ) g = 0;
                 if (b > 255) b = 255; if (b < 0 ) b = 0;
                 a = qAlpha(data[ind]);
                 data[ind] = qRgba(r, g, b, a);
             }
         }
     }
 
     else if (eff == RectangleGradient || eff == EllipticGradient) {
         float xvar;
         float yvar;
 
         for (x = 0; x < image.width() / 2 + image.width() % 2; x++) {
             xvar = var / image.width()  * (image.width() - x*2/unaffected-1);
             for (y = 0; y < image.height() / 2 + image.height() % 2; y++) {
                 yvar = var / image.height()   * (image.height() - y*2/unaffected -1);
 
                 if (eff == RectangleGradient)
                     intensity = initial_intensity + QMAX(xvar, yvar);
                 else
-                    intensity = initial_intensity + sqrt(xvar * xvar + yvar * yvar);
+                    intensity = initial_intensity + qSqrt(xvar * xvar + yvar * yvar);
                 if (intensity > 1) intensity = 1;
                 if (intensity < 0) intensity = 0;
 
                 //NW
                 ind = x + image.width()  * y ;
                 r = qRed  (data[ind]) + (int)(intensity *
                                               (r_bgnd - qRed  (data[ind])));
                 g = qGreen(data[ind]) + (int)(intensity *
                                               (g_bgnd - qGreen(data[ind])));
                 b = qBlue (data[ind]) + (int)(intensity *
                                               (b_bgnd - qBlue (data[ind])));
                 if (r > 255) r = 255; if (r < 0 ) r = 0;
                 if (g > 255) g = 255; if (g < 0 ) g = 0;
                 if (b > 255) b = 255; if (b < 0 ) b = 0;
                 a = qAlpha(data[ind]);
                 data[ind] = qRgba(r, g, b, a);
 
                 //NE
                 ind = image.width() - x - 1 + image.width()  * y ;
                 r = qRed  (data[ind]) + (int)(intensity *
                                               (r_bgnd - qRed  (data[ind])));
                 g = qGreen(data[ind]) + (int)(intensity *
                                               (g_bgnd - qGreen(data[ind])));
                 b = qBlue (data[ind]) + (int)(intensity *
                                               (b_bgnd - qBlue (data[ind])));
                 if (r > 255) r = 255; if (r < 0 ) r = 0;
                 if (g > 255) g = 255; if (g < 0 ) g = 0;
                 if (b > 255) b = 255; if (b < 0 ) b = 0;
                 a = qAlpha(data[ind]);
                 data[ind] = qRgba(r, g, b, a);
             }
         }
 
         //CT  loop is doubled because of stupid central row/column issue.
         //    other solution?
         for (x = 0; x < image.width() / 2; x++) {
             xvar = var / image.width()  * (image.width() - x*2/unaffected-1);
             for (y = 0; y < image.height() / 2; y++) {
                 yvar = var / image.height()   * (image.height() - y*2/unaffected -1);
 
                 if (eff == RectangleGradient)
                     intensity = initial_intensity + QMAX(xvar, yvar);
                 else
-                    intensity = initial_intensity + sqrt(xvar * xvar + yvar * yvar);
+                    intensity = initial_intensity + qSqrt(xvar * xvar + yvar * yvar);
                 if (intensity > 1) intensity = 1;
                 if (intensity < 0) intensity = 0;
 
                 //SW
                 ind = x + image.width()  * (image.height() - y -1) ;
                 r = qRed  (data[ind]) + (int)(intensity *
                                               (r_bgnd - qRed  (data[ind])));
                 g = qGreen(data[ind]) + (int)(intensity *
                                               (g_bgnd - qGreen(data[ind])));
                 b = qBlue (data[ind]) + (int)(intensity *
                                               (b_bgnd - qBlue (data[ind])));
                 if (r > 255) r = 255; if (r < 0 ) r = 0;
                 if (g > 255) g = 255; if (g < 0 ) g = 0;
                 if (b > 255) b = 255; if (b < 0 ) b = 0;
                 a = qAlpha(data[ind]);
                 data[ind] = qRgba(r, g, b, a);
 
                 //SE
                 ind = image.width()-x-1 + image.width() * (image.height() - y - 1) ;
                 r = qRed  (data[ind]) + (int)(intensity *
                                               (r_bgnd - qRed  (data[ind])));
                 g = qGreen(data[ind]) + (int)(intensity *
                                               (g_bgnd - qGreen(data[ind])));
                 b = qBlue (data[ind]) + (int)(intensity *
                                               (b_bgnd - qBlue (data[ind])));
                 if (r > 255) r = 255; if (r < 0 ) r = 0;
                 if (g > 255) g = 255; if (g < 0 ) g = 0;
                 if (b > 255) b = 255; if (b < 0 ) b = 0;
                 a = qAlpha(data[ind]);
                 data[ind] = qRgba(r, g, b, a);
             }
         }
     }
 
     else 
             qDebug ( "not implemented\n" );
 
     return image;
 }
 
 #if 0
 // Not very efficient as we create a third big image...
 //
 QImage& KQGfxEffect::blend(QImage &image1, QImage &image2,
                             GradientType gt, int xf, int yf)
 {
   if (image1.width() == 0 || image1.height() == 0 ||
       image2.width() == 0 || image2.height() == 0)
     return image1;
 
   QImage image3;
 
   image3 = KQGfxEffect::unbalancedGradient(image1.size(),
                                     QColor(0,0,0), QColor(255,255,255),
                                     gt, xf, yf, 0);
 
   return blend(image1,image2,image3, Red); // Channel to use is arbitrary
 }
 #endif