/**
* Specify modifiers to the bounds for the drawable[index]. left += l top += t; right -= r; bottom
* -= b;
*/
public void setLayerInset(int index, int l, int t, int r, int b) {
ChildDrawable childDrawable = mLayerState.mChildren[index];
childDrawable.mInsetL = l;
childDrawable.mInsetT = t;
childDrawable.mInsetR = r;
childDrawable.mInsetB = b;
}
/**
* Add a new layer to this drawable. The new layer is identified by an id.
*
* @param layer The drawable to add as a layer.
* @param id The id of the new layer.
* @param left The left padding of the new layer.
* @param top The top padding of the new layer.
* @param right The right padding of the new layer.
* @param bottom The bottom padding of the new layer.
*/
private void addLayer(Drawable layer, int id, int left, int top, int right, int bottom) {
final LayerState st = mLayerState;
int N = st.mChildren != null ? st.mChildren.length : 0;
int i = st.mNum;
if (i >= N) {
ChildDrawable[] nu = new ChildDrawable[N + 10];
if (i > 0) {
System.arraycopy(st.mChildren, 0, nu, 0, i);
}
st.mChildren = nu;
}
mLayerState.mChildrenChangingConfigurations |= layer.getChangingConfigurations();
ChildDrawable childDrawable = new ChildDrawable();
st.mChildren[i] = childDrawable;
childDrawable.mId = id;
childDrawable.mDrawable = layer;
childDrawable.mInsetL = left;
childDrawable.mInsetT = top;
childDrawable.mInsetR = right;
childDrawable.mInsetB = bottom;
st.mNum++;
layer.setCallback(this);
}
LayerState(LayerState orig, LayerDrawable owner, Resources res) {
if (orig != null) {
final ChildDrawable[] origChildDrawable = orig.mChildren;
final int N = orig.mNum;
mNum = N;
mChildren = new ChildDrawable[N];
mChangingConfigurations = orig.mChangingConfigurations;
mChildrenChangingConfigurations = orig.mChildrenChangingConfigurations;
for (int i = 0; i < N; i++) {
final ChildDrawable r = mChildren[i] = new ChildDrawable();
final ChildDrawable or = origChildDrawable[i];
if (res != null) {
r.mDrawable = or.mDrawable.getConstantState().newDrawable(res);
} else {
r.mDrawable = or.mDrawable.getConstantState().newDrawable();
}
r.mDrawable.setCallback(owner);
r.mDrawable.setLayoutDirection(or.mDrawable.getLayoutDirection());
r.mInsetL = or.mInsetL;
r.mInsetT = or.mInsetT;
r.mInsetR = or.mInsetR;
r.mInsetB = or.mInsetB;
r.mId = or.mId;
}
mHaveOpacity = orig.mHaveOpacity;
mOpacity = orig.mOpacity;
mHaveStateful = orig.mHaveStateful;
mStateful = orig.mStateful;
mCheckedConstantState = mCanConstantState = true;
mAutoMirrored = orig.mAutoMirrored;
} else {
mNum = 0;
mChildren = null;
}
}
