/**
* Iterates all child components and calculates the space enough to keep all of them assuming that
* the width is fixed.
*/
private Dimension calculateSize(int maxRowWidth) {
FlowLayout layout = (FlowLayout) getLayout();
int height = 0;
int currentRowWidth = 0;
int currentRowHeight = 0;
for (int i = 0, count = getComponentCount(); i < count; ++i) {
Component comp = getComponent(i);
Dimension bounds = comp.getPreferredSize();
if (!comp.isVisible()) {
continue;
}
currentRowHeight = Math.max(currentRowHeight, bounds.height);
if (currentRowWidth + layout.getHgap() + bounds.width <= maxRowWidth) {
if (bounds.width != 0) {
currentRowWidth += bounds.width + layout.getHgap();
}
continue;
}
height += currentRowHeight + layout.getVgap();
currentRowWidth = bounds.width;
currentRowHeight = bounds.height;
}
return new Dimension(maxRowWidth, height + currentRowHeight + 2 * layout.getVgap());
}
