Bug 484685

Description Matthias Wienand 2015-12-18 08:35:37 EST

In some situations, the InfiniteCanvas#fitToSize() method computes an invalid zoom factor. Scrolling and zooming should then be delayed to a later point at which the computation works.

The following snippet demonstrates the issue (the red rectangle stays at the top left, although it should fill the whole window):

package org.eclipse.gef4.fx.examples.snippets;

import org.eclipse.gef4.fx.nodes.InfiniteCanvas;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;

public class InfiniteCanvasFitToSizeSnippet extends Application {
	public static void main(String[] args) {
		launch();
	}

	@Override
	public void start(Stage primaryStage) throws Exception {
		InfiniteCanvas canvas = new InfiniteCanvas();
		canvas.getContentGroup().getChildren()
				.add(new Rectangle(50, 50, Color.RED));
		canvas.fitToSize();
		Scene scene = new Scene(canvas, 400, 400);
		primaryStage.setScene(scene);
		primaryStage.sizeToScene();
		primaryStage.show();
	}
}