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