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We use cookies to ensure you have the best browsing experience on our website. Start Your Coding Journey Now! Normally, this would take only a few minutes to put together. After a bit of practice you'll find that putting together even the most complex GUIs using Glade can be accomplished in minutes.
Compare that to the time it takes to type in all those Tk commands manually to do the same thing. This GUI, of course, doesn't do anything yet. We need to write the Python code that loads the.
In fact, I tend to write two Python files for each Glade-driven project. First, we need to deal with any potential version skew. I use the following code, although a few other entries mentioned in the FAQ do similar things:. Before we do that, though, we need to open button1's properties and add a signal. To do that, click the three dots, scroll to clicked, select it and then click Add. You should end up with something like Figure 7. You can see the other potential signals to be handled in that list as well.
Each widget may have different potential signals. For example, capturing a text-changed signal on a text-entry widget may be useful, but a button never changes because it's not editable. Initializing the application and starting gtk. Different event handlers need to have different numbers of arguments.
The clicked event handler gets only one argument, the widget that was clicked. While you're at it, add the destroy event to the main window, so the program exits when you close the window. Don't forget to save your Glade project.
Also, make sure you copy project1. You should end up with something like Figure 8 when you run your new program.
Clicking GO! To make the application actually do something interesting, you need to have some way to determine which host and which port to use. Now when GO! You can spice it up by adding more rows to the hbox and putting other widgets, like a menubar, into the application. You also can experiment with using a table instead of nested hboxes and vboxes for layout, which often creates nicer looking layouts with everything aligned.
You don't really want all that text going to the terminal, though, do you? It's likely you want it displayed in another widget or even in another window.
GTK v1 had an easy-to-understand widget called, simply, GtkText. Add a TextView to your Glade project and put the results in that window. You'll notice that a scrolledwindow is created to encapsulate it. Add the lines below to your init to create a TextBuffer and attach it to your TextView. Obviously, one of the advantages of the GTK v2 way of doing things is the two different views can show the same buffer.
You also may want to go into the Properties window for scrolledwindow1 and set the size to something larger so you have a decent view space:. Now, whenever you click GO!
By dividing your main window with a set of vertical panes, you can resize this window, if you like Figure 9. Unlike GTK v1, under GTK v2 a tree and a list basically are the same thing; the difference is the kind of store each of them uses.
Another important concept is the TreeIter, which is a datatype used to store a pointer to a particular row in a tree or list. However, it is passed into the TreeView methods whenever you want to reference a particular location in the tree.
So, for example:. The following code adds some titles to the top of the columns:. Here's an example that uses this function. This should contain. To top it all off, run the glib-compile-schemas utility provided by GLib to generate the compiled settings schema in your installation folder:. Step 6. You can then zip up your installation folder, or use an installer generator to do that for you, and distribute the result. Your installer will need to ship your application build artifacts as well as GTK binaries and runtime dependencies.
One important thing that the GNU licenses require is that you must also redistribute the source code on request. Now we have to define the handler functions in our code.
The onDestroy should simply result in a call to Gtk. Next, we have to connect the signals and the handler functions. The easiest way to do this is to define a dict with a mapping from the names to the handlers and then pass it to the Gtk. An alternative approach is to create a class which has methods that are called like the signals. In our example the last code snippet could be rewritten as:.
Template as a way of accessing this from Python. Then it can be used to implement the example with a Gtk. Window subclass:. More information can be found at the PyGObject website. Installation 2. Getting Started 3. Basics 4. How to Deal With Strings 5. Widget Gallery 6. Layout Containers 7. Label 8.
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