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;
}
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);
}
}
