Hi again,

after I explained yesterday the combobox, today the labels, entries, buttons and an extension to the combobox, the ComboBoxEntry will be discussed. Because the ComboBoxEntry is an enhanced ComboBox with an entry/edit-field, we will first have a look into the GtkEntry and in this step, automatically the Label and the Button. Afterwards, we have a short introduction to the ComboBoxEntry, which is similiar to the ComboBox - maybe, a little bit easier...

Writing a Widget Using Cairo and GNU Smalltalk

Cairo is a powerful 2-dimensional graphics library designed to support a number of modern graphics techniques
including stroking, alpha blending and anti-aliasing. It supports multiple output formats, which allows
developers to use the same code to display graphics on the screen, print them to the printer or accelerate
them with OpenGL.

Here is a screenshot of a cairo clock :

After I got now through the creation of combo-boxes, I just want today explain the creation-process.

After I had some issues with the planned subject of the next guide, I switched - for an example - to glade and would like to show, how you can do RAD with glade and gnu-smalltalk. It's really easy and fast, and you won't blow up your source-code with the complete gui-creation stuff. As an example I picked a password-generator, because I frequently have to set passwords for different user etc. in the company I work for.

The thing I want to show today, is enhancing the little application with a toolbar, so let's dig into this...

(Most of the applications which have menus, also have a toolbar. And it is realy easy to set up.)

The nice thing, all toolbar entries should be connected to an existing callback-method in our application, which is reachable already by an menu-entry. A toolbar is only a shortcut to an entry in the menu. So, we only have to design the user-interface, no additional business-logic is needed.