public JavaFxHtmlPanel() {
// System.setProperty("prism.lcdtext", "false");
// System.setProperty("prism.text", "t2k");
myPanelWrapper = new JPanel(new BorderLayout());
myPanelWrapper.setBackground(JBColor.background());
ApplicationManager.getApplication()
.invokeLater(
() ->
PlatformImpl.startup(
() -> {
myWebView = new WebView();
updateFontSmoothingType(
myWebView,
MarkdownApplicationSettings.getInstance()
.getMarkdownPreviewSettings()
.isUseGrayscaleRendering());
myWebView.setContextMenuEnabled(false);
final WebEngine engine = myWebView.getEngine();
engine.getLoadWorker().stateProperty().addListener(myBridgeSettingListener);
engine
.getLoadWorker()
.stateProperty()
.addListener(myScrollPreservingListener);
final Scene scene = new Scene(myWebView);
ApplicationManager.getApplication()
.invokeLater(
() -> {
myPanel = new JFXPanelWrapper();
myPanel.setScene(scene);
setHtml("");
for (Runnable action : myInitActions) {
Platform.runLater(action);
}
myInitActions.clear();
myPanelWrapper.add(myPanel, BorderLayout.CENTER);
myPanelWrapper.repaint();
});
}));
subscribeForGrayscaleSetting();
}
/**
* @author peter
* @author Konstantin Bulenkov
*/
public class LookupCellRenderer implements ListCellRenderer {
private static final Logger LOG =
Logger.getInstance("#com.intellij.codeInsight.lookup.impl.LookupCellRenderer");
// TODO[kb]: move all these awesome constants to Editor's Fonts & Colors settings
private static final int AFTER_TAIL = 10;
private static final int AFTER_TYPE = 6;
private Icon myEmptyIcon = EmptyIcon.create(5);
private final Font myNormalFont;
private final Font myBoldFont;
private final FontMetrics myNormalMetrics;
private final FontMetrics myBoldMetrics;
public static final Color BACKGROUND_COLOR =
new JBColor(new Color(235, 244, 254), JBColor.background());
private static final Color FOREGROUND_COLOR = JBColor.foreground();
private static final Color GRAYED_FOREGROUND_COLOR = new JBColor(Gray._160, Gray._110);
private static final Color SELECTED_BACKGROUND_COLOR = new Color(0, 82, 164);
private static final Color SELECTED_NON_FOCUSED_BACKGROUND_COLOR =
new JBColor(new Color(110, 142, 162), new Color(85, 88, 90));
private static final Color SELECTED_FOREGROUND_COLOR =
new JBColor(JBColor.WHITE, JBColor.foreground());
private static final Color SELECTED_GRAYED_FOREGROUND_COLOR =
new JBColor(JBColor.WHITE, JBColor.foreground());
static final Color PREFIX_FOREGROUND_COLOR =
new JBColor(new Color(176, 0, 176), new Color(209, 122, 214));
private static final Color SELECTED_PREFIX_FOREGROUND_COLOR =
new JBColor(new Color(249, 236, 204), new Color(209, 122, 214));
private final LookupImpl myLookup;
private final SimpleColoredComponent myNameComponent;
private final SimpleColoredComponent myTailComponent;
private final SimpleColoredComponent myTypeLabel;
private final LookupPanel myPanel;
private final Map<Integer, Boolean> mySelected = new HashMap<Integer, Boolean>();
private static final String ELLIPSIS = "\u2026";
private int myMaxWidth = -1;
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);
}
private boolean myIsSelected = false;
@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;
}
private static Color getForegroundColor(boolean isSelected) {
return isSelected ? SELECTED_FOREGROUND_COLOR : FOREGROUND_COLOR;
}
private int getMaxWidth() {
if (myMaxWidth < 0) {
final Point p = myLookup.getComponent().getLocationOnScreen();
final Rectangle rectangle = ScreenUtil.getScreenRectangle(p);
myMaxWidth = rectangle.x + rectangle.width - p.x - 111;
}
return myMaxWidth;
}
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);
}
}
private String trimLabelText(@Nullable String text, int maxWidth, FontMetrics metrics) {
if (text == null || StringUtil.isEmpty(text)) {
return "";
}
final int strWidth = RealLookupElementPresentation.getStringWidth(text, metrics);
if (strWidth <= maxWidth || myIsSelected) {
return text;
}
if (RealLookupElementPresentation.getStringWidth(ELLIPSIS, metrics) > maxWidth) {
return "";
}
int i = 0;
int j = text.length();
while (i + 1 < j) {
int mid = (i + j) / 2;
final String candidate = text.substring(0, mid) + ELLIPSIS;
final int width = RealLookupElementPresentation.getStringWidth(candidate, metrics);
if (width <= maxWidth) {
i = mid;
} else {
j = mid;
}
}
return text.substring(0, i) + ELLIPSIS;
}
private static Color getTypeTextColor(
LookupElement item,
Color foreground,
LookupElementPresentation presentation,
boolean selected,
boolean nonFocusedSelection) {
if (nonFocusedSelection) {
return foreground;
}
return presentation.isTypeGrayed()
? getGrayedForeground(selected)
: item instanceof EmptyLookupItem ? JBColor.foreground() : foreground;
}
private static Color getTailTextColor(
boolean isSelected,
LookupElementPresentation.TextFragment fragment,
Color defaultForeground,
boolean nonFocusedSelection) {
if (nonFocusedSelection) {
return defaultForeground;
}
if (fragment.isGrayed()) {
return getGrayedForeground(isSelected);
}
if (!isSelected) {
final Color tailForeground = fragment.getForegroundColor();
if (tailForeground != null) {
return tailForeground;
}
}
return defaultForeground;
}
public static Color getGrayedForeground(boolean isSelected) {
return isSelected ? SELECTED_GRAYED_FOREGROUND_COLOR : GRAYED_FOREGROUND_COLOR;
}
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 FontMetrics getRealFontMetrics(LookupElement item, boolean bold) {
Font customFont = myLookup.getCustomFont(item, bold);
if (customFont != null) {
return myLookup.getEditor().getComponent().getFontMetrics(customFont);
}
return bold ? myBoldMetrics : myNormalMetrics;
}
@SimpleTextAttributes.StyleAttributeConstant
private static int getStyle(boolean bold, boolean strikeout, boolean underlined) {
int style = bold ? SimpleTextAttributes.STYLE_BOLD : SimpleTextAttributes.STYLE_PLAIN;
if (strikeout) {
style |= SimpleTextAttributes.STYLE_STRIKEOUT;
}
if (underlined) {
style |= SimpleTextAttributes.STYLE_UNDERLINE;
}
return style;
}
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);
}
public static FList<TextRange> getMatchingFragments(String prefix, String name) {
return new MinusculeMatcher("*" + prefix, NameUtil.MatchingCaseSensitivity.NONE)
.matchingFragments(name);
}
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;
}
public static Icon augmentIcon(@Nullable Icon icon, @NotNull Icon standard) {
if (icon == null) {
return standard;
}
if (icon.getIconHeight() < standard.getIconHeight()
|| icon.getIconWidth() < standard.getIconWidth()) {
final LayeredIcon layeredIcon = new LayeredIcon(2);
layeredIcon.setIcon(icon, 0, 0, (standard.getIconHeight() - icon.getIconHeight()) / 2);
layeredIcon.setIcon(standard, 1);
return layeredIcon;
}
return icon;
}
@Nullable
Font getFontAbleToDisplay(LookupElementPresentation p) {
String sampleString = p.getItemText() + p.getTailText() + p.getTypeText();
// assume a single font can display all lookup item chars
Set<Font> fonts = ContainerUtil.newHashSet();
for (int i = 0; i < sampleString.length(); i++) {
fonts.add(
EditorUtil.fontForChar(sampleString.charAt(i), Font.PLAIN, myLookup.getEditor())
.getFont());
}
eachFont:
for (Font font : fonts) {
if (font.equals(myNormalFont)) continue;
for (int i = 0; i < sampleString.length(); i++) {
if (!font.canDisplay(sampleString.charAt(i))) {
continue eachFont;
}
}
return font;
}
return null;
}
int updateMaximumWidth(final LookupElementPresentation p, LookupElement item) {
final Icon icon = p.getIcon();
if (icon != null
&& (icon.getIconWidth() > myEmptyIcon.getIconWidth()
|| icon.getIconHeight() > myEmptyIcon.getIconHeight())) {
myEmptyIcon =
new EmptyIcon(
Math.max(icon.getIconWidth(), myEmptyIcon.getIconWidth()),
Math.max(icon.getIconHeight(), myEmptyIcon.getIconHeight()));
}
return RealLookupElementPresentation.calculateWidth(
p, getRealFontMetrics(item, false), getRealFontMetrics(item, true))
+ AFTER_TAIL
+ AFTER_TYPE;
}
public int getIconIndent() {
return myNameComponent.getIconTextGap() + myEmptyIcon.getIconWidth();
}
private static class MySimpleColoredComponent extends SimpleColoredComponent {
private MySimpleColoredComponent() {
setFocusBorderAroundIcon(true);
}
@Override
protected void applyAdditionalHints(Graphics g) {
GraphicsUtil.setupAntialiasing(g);
}
}
private class LookupPanel extends JPanel {
boolean myUpdateExtender;
public LookupPanel() {
super(new BorderLayout());
}
public void setUpdateExtender(boolean updateExtender) {
myUpdateExtender = updateExtender;
}
@Override
public void paint(Graphics g) {
if (!myLookup.isFocused() && myLookup.isCompletion()) {
((Graphics2D) g).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.6f));
}
super.paint(g);
}
}
}