Examples with ImageView org.apache.pivot.wtk.ImageView used on opensource projects

Example 11 with ImageView

use of org.apache.pivot.wtk.ImageView in project pivot by apache.

the class ImageViewSkin method layout.

@Override
public void layout() {
    ImageView imageView = (ImageView) getComponent();
    Image image = imageView.getImage();
    if (image != null) {
        int width = getWidth();
        int height = getHeight();
        Dimensions imageSize = image.getSize();
        if (fill) {
            // Scale to fit
            if (preserveAspectRatio) {
                float aspectRatio = (float) width / (float) height;
                float imageAspectRatio = (float) imageSize.width / (float) imageSize.height;
                if (aspectRatio > imageAspectRatio) {
                    imageY = 0;
                    scaleY = (float) height / (float) imageSize.height;
                    imageX = (int) (width - imageSize.width * scaleY) / 2;
                    scaleX = scaleY;
                } else {
                    imageX = 0;
                    scaleX = (float) width / (float) imageSize.width;
                    imageY = (int) (height - imageSize.height * scaleX) / 2;
                    scaleY = scaleX;
                }
            } else {
                imageX = 0;
                scaleX = (float) width / (float) imageSize.width;
                imageY = 0;
                scaleY = (float) height / (float) imageSize.height;
            }
        } else {
            if (horizontalAlignment == HorizontalAlignment.CENTER) {
                imageX = (width - imageSize.width) / 2;
            } else if (horizontalAlignment == HorizontalAlignment.RIGHT) {
                imageX = width - imageSize.width;
            } else {
                imageX = 0;
            }
            scaleX = 1.0f;
            if (verticalAlignment == VerticalAlignment.CENTER) {
                imageY = (height - imageSize.height) / 2;
            } else if (verticalAlignment == VerticalAlignment.BOTTOM) {
                imageY = height - imageSize.height;
            } else {
                imageY = 0;
            }
            scaleY = 1.0f;
        }
    }
}