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-rw-r--r--kdefx/kpixmapeffect.cpp325
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diff --git a/kdefx/kpixmapeffect.cpp b/kdefx/kpixmapeffect.cpp
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--- a/kdefx/kpixmapeffect.cpp
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-/* 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 <tqimage.h>
-#include <tqpainter.h>
-
-#include "kpixmapeffect.h"
-#include "kpixmap.h"
-#include "kimageeffect.h"
-
-//======================================================================
-//
-// Gradient effects
-//
-//======================================================================
-
-
-KPixmap& KPixmapEffect::gradient(KPixmap &pixmap, const TQColor &ca,
- const TQColor &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;
-
- TQPainter 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(TQColor(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(TQColor(rl>>16, gl>>16, bl>>16));
- p.drawLine(x, 0, x, pixmap.height()-1);
- }
- break;
- default:
- ;
- }
- }
- else {
- TQImage image = KImageEffect::gradient(pixmap.size(), ca, cb,
- (KImageEffect::GradientType) eff, ncols);
- pixmap.convertFromImage(image);
- }
-
- return pixmap;
-}
-
-
-// -----------------------------------------------------------------------------
-
-KPixmap& KPixmapEffect::unbalancedGradient(KPixmap &pixmap, const TQColor &ca,
- const TQColor &cb, GradientType eff, int xfactor, int yfactor,
- int ncols)
-{
- TQImage image = KImageEffect::unbalancedGradient(pixmap.size(), ca, cb,
- (KImageEffect::GradientType) eff,
- xfactor, yfactor, ncols);
- pixmap.convertFromImage(image);
-
- return pixmap;
-}
-
-
-//======================================================================
-//
-// Intensity effects
-//
-//======================================================================
-
-
-
-KPixmap& KPixmapEffect::intensity(KPixmap &pixmap, float percent)
-{
- TQImage image = pixmap.convertToImage();
- KImageEffect::intensity(image, percent);
- pixmap.convertFromImage(image);
-
- return pixmap;
-}
-
-
-// -----------------------------------------------------------------------------
-
-KPixmap& KPixmapEffect::channelIntensity(KPixmap &pixmap, float percent,
- RGBComponent channel)
-{
- TQImage image = pixmap.convertToImage();
- KImageEffect::channelIntensity(image, percent,
- (KImageEffect::RGBComponent) channel);
- pixmap.convertFromImage(image);
-
- return pixmap;
-}
-
-
-//======================================================================
-//
-// Blend effects
-//
-//======================================================================
-
-
-KPixmap& KPixmapEffect::blend(KPixmap &pixmap, float initial_intensity,
- const TQColor &bgnd, GradientType eff,
- bool anti_dir, int ncols)
-{
-
- TQImage image = pixmap.convertToImage();
- if (image.depth() <=8)
- image = image.convertDepth(32); //Sloww..
-
- KImageEffect::blend(image, initial_intensity, bgnd,
- (KImageEffect::GradientType) eff, anti_dir);
-
- unsigned int tmp;
-
- if(pixmap.depth() <= 8 ) {
- if ( ncols < 2 || ncols > 256 )
- ncols = 3;
- TQColor *dPal = new TQColor[ncols];
- for (int i=0; i<ncols; i++) {
- tmp = 0 + 255 * i / ( ncols - 1 );
- dPal[i].setRgb ( tmp, tmp, tmp );
- }
- KImageEffect::dither(image, dPal, ncols);
- pixmap.convertFromImage(image);
- delete [] dPal;
- }
- else
- pixmap.convertFromImage(image);
-
- return pixmap;
-}
-
-
-//======================================================================
-//
-// Hash effects
-//
-//======================================================================
-
-KPixmap& KPixmapEffect::hash(KPixmap &pixmap, Lighting lite,
- unsigned int spacing, int ncols)
-{
- TQImage image = pixmap.convertToImage();
- KImageEffect::hash(image, (KImageEffect::Lighting) lite, spacing);
-
- unsigned int tmp;
-
- if(pixmap.depth() <= 8 ) {
- if ( ncols < 2 || ncols > 256 )
- ncols = 3;
- TQColor *dPal = new TQColor[ncols];
- for (int i=0; i<ncols; i++) {
- tmp = 0 + 255 * i / ( ncols - 1 );
- dPal[i].setRgb ( tmp, tmp, tmp );
- }
- KImageEffect::dither(image, dPal, ncols);
- pixmap.convertFromImage(image);
- delete [] dPal;
- }
- else
- pixmap.convertFromImage(image);
-
- return pixmap;
-}
-
-
-//======================================================================
-//
-// Pattern effects
-//
-//======================================================================
-
-#if 0
-void KPixmapEffect::pattern(KPixmap &pixmap, const TQColor &ca,
- const TQColor &cb, unsigned pat[8])
-{
- TQImage img = pattern(pixmap.size(), ca, cb, pat);
- pixmap.convertFromImage(img);
-}
-#endif
-
-// -----------------------------------------------------------------------------
-
-KPixmap KPixmapEffect::pattern(const KPixmap& pmtile, TQSize size,
- const TQColor &ca, const TQColor &cb, int ncols)
-{
- if (pmtile.depth() > 8)
- ncols = 0;
-
- TQImage img = pmtile.convertToImage();
- KImageEffect::flatten(img, ca, cb, ncols);
- KPixmap pixmap;
- pixmap.convertFromImage(img);
-
- return KPixmapEffect::createTiled(pixmap, size);
-}
-
-
-// -----------------------------------------------------------------------------
-
-KPixmap KPixmapEffect::createTiled(const KPixmap& pixmap, TQSize size)
-{
- KPixmap pix(size);
-
- TQPainter p(&pix);
- p.drawTiledPixmap(0, 0, size.width(), size.height(), pixmap);
-
- return pix;
-}
-
-
-//======================================================================
-//
-// Fade effects
-//
-//======================================================================
-
-KPixmap& KPixmapEffect::fade(KPixmap &pixmap, double val, const TQColor &color)
-{
- TQImage img = pixmap.convertToImage();
- KImageEffect::fade(img, val, color);
- pixmap.convertFromImage(img);
-
- return pixmap;
-}
-
-
-// -----------------------------------------------------------------------------
-KPixmap& KPixmapEffect::toGray(KPixmap &pixmap, bool fast)
-{
- TQImage img = pixmap.convertToImage();
- KImageEffect::toGray(img, fast);
- pixmap.convertFromImage(img);
-
- return pixmap;
-}
-
-// -----------------------------------------------------------------------------
-KPixmap& KPixmapEffect::desaturate(KPixmap &pixmap, float desat)
-{
- TQImage img = pixmap.convertToImage();
- KImageEffect::desaturate(img, desat);
- pixmap.convertFromImage(img);
-
- return pixmap;
-}
-// -----------------------------------------------------------------------------
-KPixmap& KPixmapEffect::contrast(KPixmap &pixmap, int c)
-{
- TQImage img = pixmap.convertToImage();
- KImageEffect::contrast(img, c);
- pixmap.convertFromImage(img);
-
- return pixmap;
-}
-
-//======================================================================
-//
-// Dither effects
-//
-//======================================================================
-
-// -----------------------------------------------------------------------------
-KPixmap& KPixmapEffect::dither(KPixmap &pixmap, const TQColor *palette, int size)
-{
- TQImage img = pixmap.convertToImage();
- KImageEffect::dither(img, palette, size);
- pixmap.convertFromImage(img);
-
- return pixmap;
-}
-
-//======================================================================
-//
-// Other effects
-//
-//======================================================================
-
-KPixmap KPixmapEffect::selectedPixmap( const KPixmap &pix, const TQColor &col )
-{
- TQImage img = pix.convertToImage();
- KImageEffect::selectedImage(img, col);
- KPixmap outPix;
- outPix.convertFromImage(img);
- return outPix;
-}