@Override
public void addView(View child, int index, ViewGroup.LayoutParams params) {
// Generate an id for each view, this assumes we have at most 256x256 cells
// per workspace screen
final LayoutParams cellParams = (LayoutParams) params;
cellParams.regenerateId = true;
super.addView(child, index, params);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// TODO: currently ignoring padding
int widthSpecMode = MeasureSpec.getMode(widthMeasureSpec);
int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec);
int heightSpecMode = MeasureSpec.getMode(heightMeasureSpec);
int heightSpecSize = MeasureSpec.getSize(heightMeasureSpec);
if (widthSpecMode == MeasureSpec.UNSPECIFIED || heightSpecMode == MeasureSpec.UNSPECIFIED) {
throw new RuntimeException("CellLayout cannot have UNSPECIFIED dimensions");
}
final int shortAxisCells = mShortAxisCells;
final int longAxisCells = mLongAxisCells;
final int longAxisStartPadding = mLongAxisStartPadding;
final int longAxisEndPadding = mLongAxisEndPadding;
final int shortAxisStartPadding = mShortAxisStartPadding;
final int shortAxisEndPadding = mShortAxisEndPadding;
final int cellWidth = mCellWidth;
final int cellHeight = mCellHeight;
mPortrait = heightSpecSize > widthSpecSize;
int numShortGaps = shortAxisCells - 1;
int numLongGaps = longAxisCells - 1;
if (mPortrait) {
int vSpaceLeft =
heightSpecSize - longAxisStartPadding - longAxisEndPadding - (cellHeight * longAxisCells);
mHeightGap = vSpaceLeft / numLongGaps;
int hSpaceLeft =
widthSpecSize
- shortAxisStartPadding
- shortAxisEndPadding
- (cellWidth * shortAxisCells);
if (numShortGaps > 0) {
mWidthGap = hSpaceLeft / numShortGaps;
} else {
mWidthGap = 0;
}
} else {
int hSpaceLeft =
widthSpecSize - longAxisStartPadding - longAxisEndPadding - (cellWidth * longAxisCells);
mWidthGap = hSpaceLeft / numLongGaps;
int vSpaceLeft =
heightSpecSize
- shortAxisStartPadding
- shortAxisEndPadding
- (cellHeight * shortAxisCells);
if (numShortGaps > 0) {
mHeightGap = vSpaceLeft / numShortGaps;
} else {
mHeightGap = 0;
}
}
int count = getChildCount();
for (int i = 0; i < count; i++) {
View child = getChildAt(i);
LayoutParams lp = (LayoutParams) child.getLayoutParams();
if (mPortrait) {
lp.setup(
cellWidth,
cellHeight,
mWidthGap,
mHeightGap,
shortAxisStartPadding,
longAxisStartPadding);
} else {
lp.setup(
cellWidth,
cellHeight,
mWidthGap,
mHeightGap,
longAxisStartPadding,
shortAxisStartPadding);
}
if (lp.regenerateId) {
child.setId(((getId() & 0xFF) << 16) | (lp.cellX & 0xFF) << 8 | (lp.cellY & 0xFF));
lp.regenerateId = false;
}
int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(lp.width, MeasureSpec.EXACTLY);
int childheightMeasureSpec = MeasureSpec.makeMeasureSpec(lp.height, MeasureSpec.EXACTLY);
child.measure(childWidthMeasureSpec, childheightMeasureSpec);
}
setMeasuredDimension(widthSpecSize, heightSpecSize);
}
