You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
116 lines
2.9 KiB
116 lines
2.9 KiB
|
|
#include "Background.h"
|
|
#include <qimage.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 QString &file, short width, short height) {
|
|
w=width;
|
|
h=height;
|
|
|
|
if (file == filename) {
|
|
return true;
|
|
}
|
|
sourceImage = new QImage();
|
|
backgroundImage = new QImage();
|
|
backgroundPixmap = new QPixmap();
|
|
backgroundShadowPixmap = new QPixmap();
|
|
|
|
// 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++) {
|
|
QRgb *dest = (QRgb *) backgroundImage->scanLine(y);
|
|
QRgb *src = (QRgb *) 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);
|
|
|
|
QImage tmp;
|
|
tmp.create(backgroundImage->width(), backgroundImage->height(), 32);
|
|
for (int ys=0; ys < tmp.height(); ys++) {
|
|
QRgb *src = (QRgb *) backgroundImage->scanLine(ys);
|
|
QRgb *dst = (QRgb *) tmp.scanLine(ys);
|
|
for (int xs=0; xs < tmp.width(); xs++) {
|
|
*dst=QColor(*src).dark(133).rgb();
|
|
src++;
|
|
dst++;
|
|
}
|
|
}
|
|
|
|
backgroundShadowPixmap->convertFromImage(tmp);
|
|
|
|
return;
|
|
}
|
|
|