private void internalAddOrReplace(MediaModel old, MediaModel media) {
// If the media is resizable, at this point consider it to be zero length.
// Just before we send the slideshow, we take the remaining space in the
// slideshow and equally allocate it to all the resizeable media items and resize them.
int addSize = media.getMediaResizable() ? 0 : media.getMediaSize();
int removeSize;
if (old == null) {
if (null != mParent) {
mParent.checkMessageSize(addSize);
}
mMedia.add(media);
increaseSlideSize(addSize);
increaseMessageSize(addSize);
} else {
removeSize = old.getMediaResizable() ? 0 : old.getMediaSize();
if (addSize > removeSize) {
if (null != mParent) {
mParent.checkMessageSize(addSize - removeSize);
}
increaseSlideSize(addSize - removeSize);
increaseMessageSize(addSize - removeSize);
} else {
decreaseSlideSize(removeSize - addSize);
decreaseMessageSize(removeSize - addSize);
}
mMedia.set(mMedia.indexOf(old), media);
old.unregisterAllModelChangedObservers();
}
for (IModelChangedObserver observer : mModelChangedObservers) {
media.registerModelChangedObserver(observer);
}
}
public SlideModel set(int location, SlideModel object) {
SlideModel slide = mSlides.get(location);
if (null != object) {
int removeSize = 0;
int addSize = object.getSlideSize();
if (null != slide) {
removeSize = slide.getSlideSize();
}
if (addSize > removeSize) {
checkMessageSize(addSize - removeSize);
increaseMessageSize(addSize - removeSize);
} else {
decreaseMessageSize(removeSize - addSize);
}
}
slide = mSlides.set(location, object);
if (slide != null) {
slide.unregisterAllModelChangedObservers();
}
if (object != null) {
object.registerModelChangedObserver(this);
for (IModelChangedObserver observer : mModelChangedObservers) {
object.registerModelChangedObserver(observer);
}
}
notifyModelChanged(true);
return slide;
}
public void add(int location, SlideModel object) {
if (object != null) {
int increaseSize = object.getSlideSize();
checkMessageSize(increaseSize);
mSlides.add(location, object);
increaseMessageSize(increaseSize);
object.registerModelChangedObserver(this);
for (IModelChangedObserver observer : mModelChangedObservers) {
object.registerModelChangedObserver(observer);
}
notifyModelChanged(true);
}
}
//
// Implement List<E> interface.
//
public boolean add(SlideModel object) {
int increaseSize = object.getSlideSize();
checkMessageSize(increaseSize);
if ((object != null) && mSlides.add(object)) {
increaseMessageSize(increaseSize);
object.registerModelChangedObserver(this);
for (IModelChangedObserver observer : mModelChangedObservers) {
object.registerModelChangedObserver(observer);
}
notifyModelChanged(true);
return true;
}
return false;
}