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Minor changes in BackgroundFromLayer::onExecute() comments

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This commit is contained in:
David Capello 2019-04-05 13:21:47 -03:00
parent c690747bd2
commit c99ca3093d
1 changed files with 8 additions and 5 deletions
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13
src/app/cmd/background_from_layer.cpp
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@ -45,8 +45,8 @@ void BackgroundFromLayer::onExecute()
auto doc = static_cast<Doc*>(sprite->document());
color_t bgcolor = doc->bgColor();
// create a temporary image to draw each frame of the new
// `Background' layer
// Create a temporary image to draw each cel of the new Background
// layer.
ImageRef bg_image(Image::create(sprite->pixelFormat(),
sprite->width(),
sprite->height()));
@ -54,7 +54,6 @@ void BackgroundFromLayer::onExecute()
CelList cels;
layer->getCels(cels);
for (Cel* cel : cels) {
// get the image from the sprite's stock of images
Image* cel_image = cel->image();
ASSERT(cel_image);
@ -73,19 +72,23 @@ void BackgroundFromLayer::onExecute()
if (cel->opacity() < 255)
executeAndAdd(new cmd::SetCelOpacity(cel, 255));
// same size of cel-image and bg-image
// Same size of cel image and background image, we can just
// replace pixels.
if (bg_image->width() == cel_image->width() &&
bg_image->height() == cel_image->height()) {
executeAndAdd(new CopyRect(cel_image, bg_image.get(),
gfx::Clip(0, 0, cel_image->bounds())));
}
// In other case we have to replace the whole image (this is the
// most common case, a smaller transparent cel that is converted
// to a canvas size cel in the background)
else {
ImageRef bg_image2(Image::createCopy(bg_image.get()));
executeAndAdd(new cmd::ReplaceImage(sprite, cel->imageRef(), bg_image2));
}
}
// Fill all empty cels with a flat-image filled with bgcolor
// Fill all empty cels with a flat image filled with bgcolor
for (frame_t frame(0); frame<sprite->totalFrames(); ++frame) {
Cel* cel = layer->cel(frame);
if (!cel) {