Java Code Examples for org.eclipse.swt.graphics.FontMetrics#getDescent()

The following examples show how to use org.eclipse.swt.graphics.FontMetrics#getDescent() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: AbstractDebugVariableCodeMining.java    From jdt-codemining with Eclipse Public License 1.0 6 votes vote down vote up 
/**
 * Draw square of the given rgb.
 *
 * @param rgb        the rgb color
 * @param gc         the graphic context
 * @param textWidget the text widget
 * @param x          the location y
 * @param y          the location y
 * @return the square width.
 */
private int drawSquare(RGB rgb, GC gc, StyledText textWidget, int x, int y) {
	FontMetrics fontMetrics = gc.getFontMetrics();
	int size = getSquareSize(fontMetrics);
	x += fontMetrics.getLeading();
	y += fontMetrics.getDescent();

	Rectangle rect = new Rectangle(x, y, size, size);

	// Fill square
	gc.setBackground(getColor(rgb, textWidget.getDisplay()));
	gc.fillRectangle(rect);

	// Draw square box
	gc.setForeground(textWidget.getForeground());
	gc.drawRectangle(rect);
	return getSquareWidth(gc.getFontMetrics());
}
Example 2
Source File: TextPaintInstruction.java    From nebula with Eclipse Public License 2.0 4 votes vote down vote up 
@Override
public void paint(GC gc, Rectangle area) {
	if (!this.state.isRendering()) {
		return;
	}

	FontMetrics metrics = gc.getFontMetrics();
	FontMetrics metricsToUse = metrics;
	int baseline = metrics.getAscent() + metrics.getLeading();

	int yAdvance = 0;
	if (this.state.getCurrentLineHeight() > metrics.getHeight()) {
		int biggerBaseline = this.state.getCurrentBiggestFontMetrics().getAscent() + this.state.getCurrentBiggestFontMetrics().getLeading();
		yAdvance = biggerBaseline - baseline;

		metricsToUse = this.state.getCurrentBiggestFontMetrics();
	}

	Point pointer = this.state.getPointer();

	// on alignment justify render word by word
	int textLength = 0;
	if (TextAlignment.JUSTIFY.equals(this.state.getTextAlignment())) {
		LinePainter line = this.state.getCurrentLine();
		for (String word : this.words) {
			gc.drawText(word, pointer.x, pointer.y + yAdvance, (!this.state.hasPreviousBgColor()));
			int length = gc.textExtent(word).x + line.getNextJustifySpace();
			pointer.x += length;
			textLength += length;
		}
	} else {
		textLength = getTextLength(gc);
		gc.drawText(text, pointer.x, pointer.y + yAdvance, (!this.state.hasPreviousBgColor()));
	}

	if (this.state.isUnderlineActive()) {
		int underlineY = pointer.y + baseline + yAdvance + (metricsToUse.getDescent() / 2);
		gc.drawLine(pointer.x, underlineY, pointer.x + textLength, underlineY);
	}
	if (this.state.isStrikethroughActive()) {
		int strikeY = pointer.y + yAdvance + (metrics.getHeight() / 2) + (metrics.getLeading() / 2);
		gc.drawLine(pointer.x, strikeY, pointer.x + textLength, strikeY);
	}

	if (!TextAlignment.JUSTIFY.equals(this.state.getTextAlignment())) {
		pointer.x += textLength;
	}
}
Example 3
Source File: AbstractDebugVariableCodeMining.java    From jdt-codemining with Eclipse Public License 1.0 2 votes vote down vote up 
/**
 * Returns the colorized square size.
 *
 * @param fontMetrics
 * @return the colorized square size.
 */
public static int getSquareSize(FontMetrics fontMetrics) {
	return fontMetrics.getHeight() - 2 * fontMetrics.getDescent();
}