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);
}
/**
* When the item is selected then we use default tree's selection foreground. It guaranties
* readability of selected text in any LAF.
*/
@Override
public void append(
@NotNull @Nls String fragment, @NotNull SimpleTextAttributes attributes, boolean isMainText) {
if (mySelected && isFocused()) {
super.append(
fragment,
new SimpleTextAttributes(attributes.getStyle(), UIUtil.getTreeSelectionForeground()),
isMainText);
} else if (mySelected && UIUtil.isUnderAquaBasedLookAndFeel()) {
super.append(
fragment,
new SimpleTextAttributes(attributes.getStyle(), UIUtil.getTreeForeground()),
isMainText);
} else {
super.append(fragment, attributes, isMainText);
}
}
private int setTypeTextLabel(
LookupElement item,
final Color background,
Color foreground,
final LookupElementPresentation presentation,
int allowedWidth,
boolean selected,
boolean nonFocusedSelection,
FontMetrics normalMetrics) {
final String givenText = presentation.getTypeText();
final String labelText =
trimLabelText(
StringUtil.isEmpty(givenText) ? "" : " " + givenText, allowedWidth, normalMetrics);
int used = RealLookupElementPresentation.getStringWidth(labelText, normalMetrics);
final Icon icon = presentation.getTypeIcon();
if (icon != null) {
myTypeLabel.setIcon(icon);
used += icon.getIconWidth();
}
Color sampleBackground = background;
Object o = item.isValid() ? item.getObject() : null;
//noinspection deprecation
if (o instanceof LookupValueWithUIHint && StringUtil.isEmpty(labelText)) {
//noinspection deprecation
Color proposedBackground = ((LookupValueWithUIHint) o).getColorHint();
if (proposedBackground != null) {
sampleBackground = proposedBackground;
}
myTypeLabel.append(" ");
used += normalMetrics.stringWidth("WW");
} else {
myTypeLabel.append(labelText);
}
myTypeLabel.setBackground(sampleBackground);
myTypeLabel.setForeground(
getTypeTextColor(item, foreground, presentation, selected, nonFocusedSelection));
return used;
}
private int setItemTextLabel(
LookupElement item,
final Color foreground,
final boolean selected,
LookupElementPresentation presentation,
int allowedWidth) {
boolean bold = presentation.isItemTextBold();
Font customItemFont = myLookup.getCustomFont(item, bold);
myNameComponent.setFont(
customItemFont != null ? customItemFont : bold ? myBoldFont : myNormalFont);
int style = getStyle(bold, presentation.isStrikeout(), presentation.isItemTextUnderlined());
final FontMetrics metrics = getRealFontMetrics(item, bold);
final String name = trimLabelText(presentation.getItemText(), allowedWidth, metrics);
int used = RealLookupElementPresentation.getStringWidth(name, metrics);
renderItemName(item, foreground, selected, style, name, myNameComponent);
return used;
}
private void renderItemName(
LookupElement item,
Color foreground,
boolean selected,
@SimpleTextAttributes.StyleAttributeConstant int style,
String name,
final SimpleColoredComponent nameComponent) {
final SimpleTextAttributes base = new SimpleTextAttributes(style, foreground);
final String prefix = item instanceof EmptyLookupItem ? "" : myLookup.itemPattern(item);
if (prefix.length() > 0) {
Iterable<TextRange> ranges = getMatchingFragments(prefix, name);
if (ranges != null) {
SimpleTextAttributes highlighted =
new SimpleTextAttributes(
style, selected ? SELECTED_PREFIX_FOREGROUND_COLOR : PREFIX_FOREGROUND_COLOR);
SpeedSearchUtil.appendColoredFragments(nameComponent, name, ranges, base, highlighted);
return;
}
}
nameComponent.append(name, base);
}
private void setTailTextLabel(
boolean isSelected,
LookupElementPresentation presentation,
Color foreground,
int allowedWidth,
boolean nonFocusedSelection,
FontMetrics fontMetrics) {
int style = getStyle(false, presentation.isStrikeout(), false);
for (LookupElementPresentation.TextFragment fragment : presentation.getTailFragments()) {
if (allowedWidth < 0) {
return;
}
String trimmed = trimLabelText(fragment.text, allowedWidth, fontMetrics);
myTailComponent.append(
trimmed,
new SimpleTextAttributes(
style, getTailTextColor(isSelected, fragment, foreground, nonFocusedSelection)));
allowedWidth -= RealLookupElementPresentation.getStringWidth(trimmed, fontMetrics);
}
}
public int getIconIndent() {
return myNameComponent.getIconTextGap() + myEmptyIcon.getIconWidth();
}
@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;
}
@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;
}
@Override
public void setOpaque(boolean isOpaque) {
myOpaque = isOpaque;
super.setOpaque(isOpaque);
}
