How to get wdith of image or pane after and during zooming? about gesturefx

[tom91136]

You can use an event handler:

gesturePane.addEventFilter(AffineEvent.CHANGED, event -> {
			System.out.println(event.getTransformedDimension());
		});

Or, do you want a property binding that you can use directly?

[taibhse-designs]

I was looking for a way that on startup I could ensure the image always takes up a set width based on screensize for a comic reading app I am working on, I found this solution to work,

//zoom until full width filled float zoomFactor = 0f; while ((pane.getCurrentScale() * node.getBoundsInLocal().getWidth()) < width) { zoomFactor += 0.1f; pane.zoomTo(zoomFactor, Point2D.ZERO); }

where width is the width of the frame set to full screen. this is done in a createScene() method as part of the initial start of the UI. Would there be a more elegant solution that I may be missing?

[tom91136]

I see, there used to be a method called cover() but that got lost for some reason. The current workaround is to set an appropriate FitMode (i.e COVER or FIT) and then zoom to zero:

pane.setFitMode(FitMode.FIT);
Platform.runLater(() -> pane.zoomTo(0, Point2D.ZERO)); // you may not need Platform.runLater

This works because those two FitMode limits the minimum scale to some value regardless of GesturePane.setMinScale

[tom91136]

cover() is definitely coming back so I'll keep this issue opened, thanks for reporting.

[tom91136]

Resolved with commit f101f98