private boolean paintPlaceholderText(Graphics2D g) {
CharSequence hintText = myEditor.getPlaceholder();
EditorComponentImpl editorComponent = myEditor.getContentComponent();
if (myDocument.getTextLength() > 0
|| hintText == null
|| hintText.length() == 0
|| KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner() == editorComponent
&& !myEditor.getShowPlaceholderWhenFocused()) {
return false;
}
hintText =
SwingUtilities.layoutCompoundLabel(
g.getFontMetrics(),
hintText.toString(),
null,
0,
0,
0,
0,
editorComponent.getBounds(),
new Rectangle(),
new Rectangle(),
0);
g.setColor(myEditor.getFoldingModel().getPlaceholderAttributes().getForegroundColor());
g.setFont(myEditor.getColorsScheme().getFont(EditorFontType.PLAIN));
g.drawString(hintText.toString(), 0, myView.getAscent());
return true;
}
void repaintCarets() {
EditorImpl.CaretRectangle[] locations = myEditor.getCaretLocations(false);
if (locations == null) return;
int lineHeight = myView.getLineHeight();
for (EditorImpl.CaretRectangle location : locations) {
int x = location.myPoint.x;
int y = location.myPoint.y;
int width = Math.max(location.myWidth, CARET_DIRECTION_MARK_SIZE);
myEditor.getContentComponent().repaintEditorComponent(x - width, y, width * 2, lineHeight);
}
}
private void requestRepaint(VerticalInfo oldCaretInfo) {
int lineHeight = myEditor.getLineHeight();
Rectangle visibleArea = myEditor.getScrollingModel().getVisibleArea();
final EditorGutterComponentEx gutter = myEditor.getGutterComponentEx();
final EditorComponentImpl content = myEditor.getContentComponent();
int updateWidth =
myEditor.getScrollPane().getHorizontalScrollBar().getValue() + visibleArea.width;
if (Math.abs(myCaretInfo.y - oldCaretInfo.y) <= 2 * lineHeight) {
int minY = Math.min(oldCaretInfo.y, myCaretInfo.y);
int maxY = Math.max(oldCaretInfo.y + oldCaretInfo.height, myCaretInfo.y + myCaretInfo.height);
content.repaintEditorComponent(0, minY, updateWidth, maxY - minY);
gutter.repaint(0, minY, gutter.getWidth(), maxY - minY);
} else {
content.repaintEditorComponent(
0, oldCaretInfo.y, updateWidth, oldCaretInfo.height + lineHeight);
gutter.repaint(0, oldCaretInfo.y, updateWidth, oldCaretInfo.height + lineHeight);
content.repaintEditorComponent(
0, myCaretInfo.y, updateWidth, myCaretInfo.height + lineHeight);
gutter.repaint(0, myCaretInfo.y, updateWidth, myCaretInfo.height + lineHeight);
}
}
void paint(Graphics2D g) {
Rectangle clip = g.getClipBounds();
if (myEditor.getContentComponent().isOpaque()) {
g.setColor(myEditor.getBackgroundColor());
g.fillRect(clip.x, clip.y, clip.width, clip.height);
}
if (paintPlaceholderText(g)) {
paintCaret(g);
return;
}
int startLine = myView.yToVisualLine(Math.max(clip.y, 0));
int endLine = myView.yToVisualLine(Math.max(clip.y + clip.height, 0));
int startOffset = myView.visualPositionToOffset(new VisualPosition(startLine, 0));
int endOffset = myView.visualPositionToOffset(new VisualPosition(endLine + 1, 0, true));
ClipDetector clipDetector = new ClipDetector(myEditor, clip);
paintBackground(g, clip, startLine, endLine);
paintRightMargin(g, clip);
paintCustomRenderers(g, startOffset, endOffset);
MarkupModelEx docMarkup =
(MarkupModelEx) DocumentMarkupModel.forDocument(myDocument, myEditor.getProject(), true);
paintLineMarkersSeparators(g, clip, docMarkup, startOffset, endOffset);
paintLineMarkersSeparators(g, clip, myEditor.getMarkupModel(), startOffset, endOffset);
paintTextWithEffects(g, clip, startLine, endLine);
paintHighlightersAfterEndOfLine(g, docMarkup, startOffset, endOffset);
paintHighlightersAfterEndOfLine(g, myEditor.getMarkupModel(), startOffset, endOffset);
paintBorderEffect(g, clipDetector, myEditor.getHighlighter(), startOffset, endOffset);
paintBorderEffect(g, clipDetector, docMarkup, startOffset, endOffset);
paintBorderEffect(g, clipDetector, myEditor.getMarkupModel(), startOffset, endOffset);
paintCaret(g);
paintComposedTextDecoration(g);
}