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#include "Background.h"
#include <tqimage.h>
Background::Background(): tile(true) {
sourceImage = 0;
backgroundImage = 0;
backgroundPixmap = 0;
backgroundShadowPixmap = 0;
}
Background::~Background() {
delete sourceImage;
delete backgroundImage;
delete backgroundPixmap;
delete backgroundShadowPixmap;
}
bool Background::load(const TQString &file, short width, short height) {
w=width;
h=height;
if (file == filename) {
return true;
}
sourceImage = new TQImage();
backgroundImage = new TQImage();
backgroundPixmap = new TQPixmap();
backgroundShadowPixmap = new TQPixmap();
// try to load the image, return on failure
if(!sourceImage->load(file ))
return false;
// Just in case the image is loaded 8 bit
if (sourceImage->depth() != 32)
*sourceImage = sourceImage->convertDepth(32);
// call out to scale/tile the source image into the background image
sourceToBackground();
filename = file;
return true;
}
// slot used when tile/scale option changes
void Background::scaleModeChanged() {
sourceToBackground();
}
void Background::sizeChanged(int newW, int newH) {
if (newW == w && newH == h)
return;
w = newW;
h = newH;
sourceToBackground();
}
void Background::sourceToBackground() {
// Deallocate the old image and create the new one
if (!backgroundImage->isNull())
backgroundImage->reset();
// the new version of kmahjongg uses true color images
// to avoid the old color limitation.
backgroundImage->create(w, h, 32);
// Now we decide if we should scale the incoming image
// or if we tile. First we check for an exact match which
// should be true for all images created specifically for us.
if ((sourceImage->width() == w) && (sourceImage->height() == h)) {
*backgroundImage = *sourceImage;
return;
}
if (tile) {
// copy new to background wrapping on w and height
for (int y=0; y<backgroundImage->height(); y++) {
TQRgb *dest = (TQRgb *) backgroundImage->scanLine(y);
TQRgb *src = (TQRgb *) sourceImage->scanLine(y % sourceImage->height());
for (int x=0; x< backgroundImage->width(); x++) {
*dest = *(src + (x % sourceImage->width()));
dest++;
}
}
} else {
*backgroundImage = sourceImage->smoothScale(w, h);
// Just incase the image is loaded 8 bit
if (backgroundImage->depth() != 32)
*backgroundImage = backgroundImage->convertDepth(32);
}
// Save a copy of the background as a pixmap for easy and quick
// blitting.
backgroundPixmap->convertFromImage(*backgroundImage);
TQImage tmp;
tmp.create(backgroundImage->width(), backgroundImage->height(), 32);
for (int ys=0; ys < tmp.height(); ys++) {
TQRgb *src = (TQRgb *) backgroundImage->scanLine(ys);
TQRgb *dst = (TQRgb *) tmp.scanLine(ys);
for (int xs=0; xs < tmp.width(); xs++) {
*dst=TQColor(*src).dark(133).rgb();
src++;
dst++;
}
}
backgroundShadowPixmap->convertFromImage(tmp);
return;
}
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