Add Windows Resize Icons #35
Chapter 5, Windows, Dialogs, and Frames
The final hack looks like Figure 5-1, with the titlebar and window controls
hidden and the entire component draggable.
H A C K
Add Windows Resize Icons Hack #35
The Windows resize icons aren’t built into Java. Here’s how to make your own.
Windows has two standard icons to let users know that they can resize a
window. I can’t tell you why there are two or how to decide between them,
but I can tell you how to reproduce both of them in Java. Note that this
hack is concerned with painting the icons accurately—it will be up to your
code to handle events on components that use these icons and handle them
A Tale of Two Icons
First take a look at the two icons. Figure 5-2 shows the icon used by Win-
dows Explorer, MS Paint, and other applications; Figure 5-3 shows the icon
used by Word and other Office applications.
The Icon Interface
The easiest and most flexible way to implement these icons is through the
Icon interface. Using Icon allows you to change an icon’s appearance easily
if you need to match new system defaults. It’s also a lot easier to implement
transparency with an
Icon than by making an image from the corner icon
using a screen capture and editing it in a professional graphics application
Figure 5-1. A draggable calendar