public LookupCellRenderer(LookupImpl lookup) {
EditorColorsScheme scheme = lookup.getEditor().getColorsScheme();
myNormalFont = scheme.getFont(EditorFontType.PLAIN);
myBoldFont = scheme.getFont(EditorFontType.BOLD);
myLookup = lookup;
myNameComponent = new MySimpleColoredComponent();
myNameComponent.setIpad(new Insets(0, 0, 0, 0));
myTailComponent = new MySimpleColoredComponent();
myTailComponent.setIpad(new Insets(0, 0, 0, 0));
myTypeLabel = new MySimpleColoredComponent();
myTypeLabel.setIpad(new Insets(0, 0, 0, 0));
myPanel = new LookupPanel();
myPanel.add(myNameComponent, BorderLayout.WEST);
myPanel.add(myTailComponent, BorderLayout.CENTER);
myTailComponent.setBorder(new EmptyBorder(0, 0, 0, AFTER_TAIL));
myPanel.add(myTypeLabel, BorderLayout.EAST);
myTypeLabel.setBorder(new EmptyBorder(0, 0, 0, AFTER_TYPE));
myNormalMetrics = myLookup.getEditor().getComponent().getFontMetrics(myNormalFont);
myBoldMetrics = myLookup.getEditor().getComponent().getFontMetrics(myBoldFont);
}
@Override
public Component getListCellRendererComponent(
final JList list, Object value, int index, boolean isSelected, boolean hasFocus) {
boolean nonFocusedSelection =
isSelected && myLookup.getFocusDegree() == LookupImpl.FocusDegree.SEMI_FOCUSED;
if (!myLookup.isFocused()) {
isSelected = false;
}
myIsSelected = isSelected;
final LookupElement item = (LookupElement) value;
final Color foreground = getForegroundColor(isSelected);
final Color background =
nonFocusedSelection
? SELECTED_NON_FOCUSED_BACKGROUND_COLOR
: isSelected ? SELECTED_BACKGROUND_COLOR : BACKGROUND_COLOR;
int allowedWidth = list.getWidth() - AFTER_TAIL - AFTER_TYPE - getIconIndent();
FontMetrics normalMetrics = getRealFontMetrics(item, false);
FontMetrics boldMetrics = getRealFontMetrics(item, true);
final LookupElementPresentation presentation =
new RealLookupElementPresentation(
isSelected ? getMaxWidth() : allowedWidth, normalMetrics, boldMetrics, myLookup);
AccessToken token = ReadAction.start();
try {
if (item.isValid()) {
try {
item.renderElement(presentation);
} catch (Exception e) {
LOG.error(e);
} catch (Error e) {
LOG.error(e);
}
} else {
presentation.setItemTextForeground(JBColor.RED);
presentation.setItemText("Invalid");
}
} finally {
token.finish();
}
myNameComponent.clear();
myNameComponent.setIcon(augmentIcon(presentation.getIcon(), myEmptyIcon));
myNameComponent.setBackground(background);
allowedWidth -=
setItemTextLabel(
item,
new JBColor(
isSelected ? SELECTED_FOREGROUND_COLOR : presentation.getItemTextForeground(),
foreground),
isSelected,
presentation,
allowedWidth);
Font customFont = myLookup.getCustomFont(item, false);
myTailComponent.setFont(customFont != null ? customFont : myNormalFont);
myTypeLabel.setFont(customFont != null ? customFont : myNormalFont);
myTypeLabel.clear();
if (allowedWidth > 0) {
allowedWidth -=
setTypeTextLabel(
item,
background,
foreground,
presentation,
isSelected ? getMaxWidth() : allowedWidth,
isSelected,
nonFocusedSelection,
normalMetrics);
}
myTailComponent.clear();
myTailComponent.setBackground(background);
if (isSelected || allowedWidth >= 0) {
setTailTextLabel(
isSelected,
presentation,
foreground,
isSelected ? getMaxWidth() : allowedWidth,
nonFocusedSelection,
normalMetrics);
}
if (mySelected.containsKey(index)) {
if (!isSelected && mySelected.get(index)) {
myPanel.setUpdateExtender(true);
}
}
mySelected.put(index, isSelected);
final double w =
myNameComponent.getPreferredSize().getWidth()
+ myTailComponent.getPreferredSize().getWidth()
+ myTypeLabel.getPreferredSize().getWidth();
boolean useBoxLayout =
isSelected
&& w > list.getWidth()
&& ((JBList) list).getExpandableItemsHandler().isEnabled();
if (useBoxLayout != myPanel.getLayout() instanceof BoxLayout) {
myPanel.removeAll();
if (useBoxLayout) {
myPanel.setLayout(new BoxLayout(myPanel, BoxLayout.X_AXIS));
myPanel.add(myNameComponent);
myPanel.add(myTailComponent);
myPanel.add(myTypeLabel);
} else {
myPanel.setLayout(new BorderLayout());
myPanel.add(myNameComponent, BorderLayout.WEST);
myPanel.add(myTailComponent, BorderLayout.CENTER);
myPanel.add(myTypeLabel, BorderLayout.EAST);
}
}
return myPanel;
}