protected void doPaintIcon(@NotNull Graphics2D g, @NotNull Icon icon, int offset) {
final Container parent = getParent();
Color iconBackgroundColor = null;
if ((isOpaque() || isIconOpaque()) && !isTransparentIconBackground()) {
if (parent != null && !myFocusBorderAroundIcon && !UIUtil.isFullRowSelectionLAF()) {
iconBackgroundColor = parent.getBackground();
} else {
iconBackgroundColor = getBackground();
}
}
if (iconBackgroundColor != null) {
g.setColor(iconBackgroundColor);
g.fillRect(offset, 0, icon.getIconWidth() + myIpad.left + myIconTextGap, getHeight());
}
paintIcon(g, icon, offset + myIpad.left);
}
@Override
public final Component getTreeCellRendererComponent(
JTree tree,
Object value,
boolean selected,
boolean expanded,
boolean leaf,
int row,
boolean hasFocus) {
myTree = tree;
clear();
mySelected = selected;
myFocusedCalculated = false;
// We paint background if and only if tree path is selected and tree has focus.
// If path is selected and tree is not focused then we just paint focused border.
if (UIUtil.isFullRowSelectionLAF()) {
setBackground(selected ? UIUtil.getTreeSelectionBackground() : null);
} else if (WideSelectionTreeUI.isWideSelection(tree)) {
setPaintFocusBorder(false);
if (selected) {
setBackground(
hasFocus
? UIUtil.getTreeSelectionBackground()
: UIUtil.getTreeUnfocusedSelectionBackground());
}
} else if (selected) {
setPaintFocusBorder(true);
if (isFocused()) {
setBackground(UIUtil.getTreeSelectionBackground());
} else {
setBackground(null);
}
} else {
setBackground(null);
}
if (value instanceof LoadingNode) {
setForeground(JBColor.GRAY);
setIcon(LOADING_NODE_ICON);
} else {
setForeground(tree.getForeground());
setIcon(null);
}
if (UIUtil.isUnderGTKLookAndFeel()) {
super.setOpaque(false); // avoid nasty background
super.setIconOpaque(false);
} else if (UIUtil.isUnderNimbusLookAndFeel() && selected && hasFocus) {
super.setOpaque(false); // avoid erasing Nimbus focus frame
super.setIconOpaque(false);
} else if (WideSelectionTreeUI.isWideSelection(tree)) {
super.setOpaque(false); // avoid erasing Nimbus focus frame
super.setIconOpaque(false);
} else {
super.setOpaque(
myOpaque
|| selected && hasFocus
|| selected && isFocused()); // draw selection background even for non-opaque tree
}
if (tree.getUI() instanceof WideSelectionTreeUI && UIUtil.isUnderAquaBasedLookAndFeel()) {
setMyBorder(null);
setIpad(new Insets(0, 2, 0, 2));
}
customizeCellRenderer(tree, value, selected, expanded, leaf, row, hasFocus);
return this;
}