ImagePanel

The ImagePanel is a custom JPanel implementation that can display an image with many options for determining how the image is to be displayed. All images types are supported - even animated GIF images can be displayed!

Here we see that the image to be displayed does not perfectly fit into the ImagePanel. That's not a problem - we select the BEST_FIT display option, and the image will be scaled down to fit inside the panel, without stretching or distorting the image in the process. This may result in empty space either above and below the image (as seen above), or on the left and right sides of the image, depending on whether the image to be displayed is too wide or too tall to fit inside the panel.

We can change the display option to STRETCH if we want the image to completely fill the panel, but this will result in distorting the image to make it fit:

We also have options for allowing the mouse wheel to zoom in and out of the image, and allowing to click+drag the mouse when zoomed in, to scroll the image around in the panel. ImagePanel also offers performance-related options for deciding whether to prioritize image quality versus speed when doing things such as scaling and zooming.