Java Code Examples for org.netbeans.api.visual.widget.Scene#setZoomFactor()

The following examples show how to use org.netbeans.api.visual.widget.Scene#setZoomFactor() . 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: MouseCenteredZoomAction.java From netbeans with Apache License 2.0

4 votes

public State mouseWheelMoved (Widget widget, WidgetMouseWheelEvent event) {
    Scene scene = widget.getScene ();

    int modifiers = scene.getInputBindings ().getZoomActionModifiers ();
    if ((event.getModifiers () & modifiers) != modifiers)
        return State.REJECTED;

    int amount = event.getWheelRotation ();

    double scale = 1.0;
    while (amount > 0) {
        scale /= zoomMultiplier;
        amount --;
    }
    while (amount < 0) {
        scale *= zoomMultiplier;
        amount ++;
    }

    JComponent view = scene.getView ();
    if (view != null) {
        Rectangle viewBounds = view.getVisibleRect ();

        Point center = widget.convertLocalToScene (event.getPoint ());
        Point mouseLocation = scene.convertSceneToView (center);

        scene.setZoomFactor (scale * scene.getZoomFactor ());
        scene.validate (); // HINT - forcing to change preferred size of the JComponent view

        center = scene.convertSceneToView (center);

        view.scrollRectToVisible (new Rectangle (
                center.x - (mouseLocation.x - viewBounds.x),
                center.y - (mouseLocation.y - viewBounds.y),
                viewBounds.width,
                viewBounds.height
        ));
    } else
        scene.setZoomFactor (scale * scene.getZoomFactor ());

    return State.CONSUMED;
}

Example 2

Source File: CenteredZoomAction.java From netbeans with Apache License 2.0

4 votes

public State mouseWheelMoved (Widget widget, WidgetMouseWheelEvent event) {
    Scene scene = widget.getScene ();

    int modifiers = scene.getInputBindings ().getZoomActionModifiers ();
    if ((event.getModifiers () & modifiers) != modifiers)
        return State.REJECTED;

    int amount = event.getWheelRotation ();

    double scale = 1.0;
    while (amount > 0) {
        scale /= zoomMultiplier;
        amount --;
    }
    while (amount < 0) {
        scale *= zoomMultiplier;
        amount ++;
    }

    JComponent view = scene.getView ();
    if (view != null) {
        Rectangle viewBounds = view.getVisibleRect ();

        Point center = GeomUtil.center (viewBounds);
        center = scene.convertViewToScene (center);

        scene.setZoomFactor (scale * scene.getZoomFactor ());
        scene.validate (); // HINT - forcing to change preferred size of the JComponent view
        
        center = scene.convertSceneToView (center);

        view.scrollRectToVisible (new Rectangle (
            center.x - viewBounds.width / 2,
            center.y - viewBounds.height / 2,
            viewBounds.width,
            viewBounds.height
        ));
    } else
        scene.setZoomFactor (scale * scene.getZoomFactor ());

    return State.CONSUMED;
}