Download PDF by Tim Hatton: SWT: A Developer's Notebook

By Tim Hatton

ISBN-10: 0596008384

ISBN-13: 9780596008383

The Eclipse platform keeps to achieve great recognition as either a Java IDE and a Java platform for program programming. one of many middle underpinnings of Eclipse is SWT, the normal Widget Toolkit. This set of elements can be utilized to strengthen graphical consumer interfaces in Java,and provide a native-code replacement to Java's Swing and AWT elements. Incorporating the feel and appear of no matter what platform the code is administered on, SWT bargains a lightning-fast method of construction GUIs, all of which really glance like they belong at the platform on which they're run.

But you recognize what you need to do--so wading during the fundamentals of person interface layout, graphical parts, and what a button does is just a waste of time. input SWT: A Developer's laptop . In normal Developer's laptop sort, you will how to take SWT out for a spin, make it give you the results you want, and switch it the other way up, all with no wasted phrases or house. every one lab during this computing device information a selected activity; you could learn from the 1st web page to the final, search for simply what you must recognize, or even squeeze this e-book into your computer bag as a brief reference if you happen to omit the best way to create a multi-tabbed view.

This publication covers:

  • Downloading and configuring Eclipse and SWT
  • Menus, toolbars, and buttons
  • Building tabbed layouts and folders
  • SWT's designated coolbar keep an eye on
  • Adding listeners and responding to occasions
  • Building an entire SWT-based application

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Additional info for SWT: A Developer's Notebook

Sample text

Note: If you're more comfortable using Run Configurations than creating a Runner class, go for it. 2. What just happened? As you see, the SimpleShell code is straightforward. There are three key sections. sleep( ); } 37 38 Shells respond to events , some fired by the operating system, others by user actions. Examples of events are things such as the user clicking the maximize button or closing the window created by the shell. The event loop continuously listens for these events and dispatches them to the appropriate handler (this is the purpose of the readAndDispatch() method of the Display class).

No event loop is required for the ChildShell. Why? Because the event loop for the parent shell handles the dispatching of events for all objects opened within the parent. The child remains open until it is closed by the user or until the parent is closed. To execute ChildShell, you must create a class that creates an instance of Shell to serve as the parent, 41 42 and then creates an instance of ChildShell. This is demonstrated in Example 2-6. Example 2-6. dispose( ); } } When you create an instance of ChildShellExample you see the result shown in Figure 2-4.

How do I do that? getParent( ); ChildShell cs = new ChildShell(parent); } public void widgetDefaultSelected(SelectionEvent e) { } }); Every widget in the SWT, including MenuItem, has one or more add methods that attach a Listener to the widget. To listen for mouse click events, add a SelectionListener to be called by addSelectionListener(). You pass addSelectionListener() a reference to a class that implements the SelectionListener interface. Usually, this is accomplished by using an anonymous inner class.

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SWT: A Developer's Notebook by Tim Hatton


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