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/**
* Copyright (c) 2017 Angelo ZERR.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Angelo Zerr <angelo.zerr@gmail.com> - [CodeMining] Provide inline annotations support - Bug 527675
*/
package org.eclipse.jface.text.source.inlined;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.GC;
import org.eclipse.jface.text.Position;
import org.eclipse.jface.text.source.Annotation;
/**
* Abstract class for inlined annotation.
*
* @since 3.13.0
* @noimplement This interface is not intended to be implemented by clients.
*/
public abstract class AbstractInlinedAnnotation extends Annotation {
/**
* The type of inlined annotations.
*/
public static final String TYPE= "org.eclipse.jface.text.source.inlined"; //$NON-NLS-1$
/**
* The position where the annotation must be drawn.
*/
private final Position position;
/**
* The {@link StyledText} widget where the annotation must be drawn.
*/
private final StyledText textWidget;
/**
* Inlined annotation constructor.
*
* @param position the position where the annotation must be drawn.
* @param textWidget the {@link StyledText} widget where the annotation must be drawn.
*/
protected AbstractInlinedAnnotation(Position position, StyledText textWidget) {
super(TYPE, false, ""); //$NON-NLS-1$
this.position= position;
this.textWidget= textWidget;
}
/**
* Returns the position where the annotation must be drawn.
*
* @return the position where the annotation must be drawn.
*/
public Position getPosition() {
return position;
}
/**
* Returns the {@link StyledText} widget where the annotation must be drawn.
*
* @return the {@link StyledText} widget where the annotation must be drawn.
*/
public StyledText getTextWidget() {
return textWidget;
}
/**
* Redraw the inlined annotation.
*/
public void redraw() {
StyledText text= getTextWidget();
InlinedAnnotationSupport.runInUIThread(text, (t) -> {
Position pos= getPosition();
InlinedAnnotationDrawingStrategy.draw(this, null, t, pos.getOffset(), pos.getLength(), null);
});
}
/**
* Draw the inlined annotation. By default it draw the text of the annotation with gray color.
* User can override this method to draw anything.
*
* @param gc the graphics context
* @param textWidget the text widget to draw on
* @param offset the offset of the line
* @param length the length of the line
* @param color the color of the line
* @param x the x position of the annotation
* @param y the y position of the annotation
*/
public void draw(GC gc, StyledText textWidget, int offset, int length, Color color, int x, int y) {
gc.setForeground(color);
gc.setBackground(textWidget.getBackground());
gc.drawText(getText(), x, y);
}
}
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