/**
* @param x x coordinate
* @param y y coordinate
* @param image the image to draw
* @param blend use alpha blending
*/
void Layer::putImage(int x, int y, QImage image, bool blend)
{
Q_ASSERT(image.format() == QImage::Format_ARGB32);
// Protocol uses unsigned coordinates, so we don't need to support
// negative values here either.
Q_ASSERT(x>=0 && y>=0);
if(x<0 || y<0)
return;
// Check if the image is completely outside the layer
if(x >= _width || y >= _height)
return;
const int x0 = Tile::roundDown(x);
const int y0 = Tile::roundDown(y);
if(x-x0 || y-y0 || image.width() % Tile::SIZE || image.height() % Tile::SIZE || blend) {
image = padImageToTileBoundary(x, y, image, blend);
}
const int tx0 = x0 / Tile::SIZE;
const int ty0 = y0 / Tile::SIZE;
const int tx1 = qMin((x0 + image.width() - 1) / Tile::SIZE, _xtiles-1);
const int ty1 = qMin((y0 + image.height() - 1) / Tile::SIZE, _ytiles-1);
for(int ty=ty0;ty<=ty1;++ty) {
int yoff = (ty-ty0) * Tile::SIZE;
for(int tx=tx0;tx<=tx1;++tx) {
int xoff = (tx-tx0) * Tile::SIZE;
int i = ty*_xtiles + tx;
Q_ASSERT(i>=0 && i < _xtiles*_ytiles);
_tiles[i] = Tile(image, xoff, yoff);
}
}
if(_owner && visible()) {
_owner->markDirty(QRect(x, y, image.width(), image.height()));
_owner->notifyAreaChanged();
}
}
/**
* @param x x coordinate
* @param y y coordinate
* @param image the image to draw
* @param mode blending/compositing mode (see protocol::PutImage)
*/
void Layer::putImage(int x, int y, QImage image, BlendMode::Mode mode)
{
Q_ASSERT(image.format() == QImage::Format_ARGB32);
// Protocol uses unsigned coordinates, so we don't need to support
// negative values here either.
Q_ASSERT(x>=0 && y>=0);
if(x<0 || y<0)
return;
// Check if the image is completely outside the layer
if(x >= _width || y >= _height)
return;
const int x0 = Tile::roundDown(x);
const int y0 = Tile::roundDown(y);
Layer imageLayer = padImageToTileBoundary(x, y, image, mode);
// Replace this layer's tiles with the scratch tiles
const int tx0 = x0 / Tile::SIZE;
const int ty0 = y0 / Tile::SIZE;
const int tx1 = qMin((x0 + imageLayer.width() - 1) / Tile::SIZE, _xtiles-1);
const int ty1 = qMin((y0 + imageLayer.height() - 1) / Tile::SIZE, _ytiles-1);
for(int ty=ty0; ty<=ty1; ++ty) {
for(int tx=tx0; tx<=tx1; ++tx) {
rtile(tx, ty) = imageLayer.tile(tx-tx0, ty-ty0);
}
}
if(_owner && visible()) {
_owner->markDirty(QRect(x, y, image.width(), image.height()));
_owner->notifyAreaChanged();
}
}
