Something that you see more and more with client applications at the moment is embedded map components. This blog will show you how to embed Google, Yahoo or Bing maps in your JavaFX application.
Google Maps in JavaFX 2.0
Download a copy of the application and try it out. The jar file is linked below, just download it and double click. This requires you to have the JavaFX 2.0 beta runtime installed.
One of the things that would be really nice to have in the virtualised ListView and TreeView JavaFX controls, not to mention future controls like TableView, is multiple selection. Certain kinds of apps just can not exist without multiple selection in fact.
So, unsurprisingly, today I got an email from a user of JavaFX, who claims to be a fan of FX Experience (hi Keith!), who was needing multiple selection for his work. I didn’t actually think it could be done very easily (and one of my main jobs is working on these controls, so I should know), but I spent a bit of time looking into it, and it turns out that it’s actually quite possible, with a number of warnings and rough edges, and also the use of a little bit of unpublished API. As long as you’re promising to not tell anyone, I thought I’d share this code….but just with you, so shhh 
Ok, I know we’ve been going on about custom cells / cell factories a bit recently, but I wanted to do one more post about a very useful topic: caching within cell content.
These days ‘Hello World’ has been replaced by building a Twitter client, so I’ve decided to frame this topic in terms of building a Twitter client. Because I don’t actually care about the whole web service side of thing, I’ve neglected to implement the whole ‘real data’ / web services aspect of it. If you want to see an actual running implementation with real data, have a look at William Antônio’s Twitter client, which is using this ListCell implementation.
Yuck, ‘CheckBoxTreeView’ – what a mouthful. Anywho – I was just looking at a very interesting JavaFX session slidedeck from Jazoon presented by AdNovum Informatik AG titled ‘JavaFX – The Condemned Live Longer‘. It is a great slide deck as they are a company that have invested a lot of time researching the available RIA technologies, and they are pretty upfront with what they like and don’t like in JavaFX, and what their developer experience has been.
The MenuButton and SplitMenuButton controls
We recently discussed the new preview Menu control that is part of JavaFX 1.3. Another part of this release is a number of controls that make use of menus internally, and this post talks about two new preview controls that do just this: MenuButton and SplitMenuButton. (more…)
Important Note: Menus (and related classes) are ‘preview’ API in JavaFX 1.3, which means that the API may (and most probably will) change in future releases. However, you’re welcome to make use of these preview controls in 1.3. Read on to learn how.
Up until the release of JavaFX 1.3 it was not possible to build proper menus that ‘popped’ out of the Stage, as one expects a menu to do. It was not until we were able to expose other functionality internally that creating proper menus became possible. As already warned, in JavaFX 1.3 menus are preview controls whilst we firm them up and get feedback from the community. In this post I wanted to outline the API, and what options you have for styling them using nothing more than CSS.
In JavaFX 1.3 a lot of work has gone into ListView, and extracting out the base virtualization engine (the secret sauce to high performance lists) such that it is able to be used in controls such as TreeView and TableView. At the same time we wanted to make it really easy for developers to customize what is shown in each ListView row. What we’ve ended up doing is creating the concept of a cell, which at any point in time represents at most one item in your ListView, and it is through the cell that you have total freedom about how to display your data. Finally, as noted, we’ve expanded this concept to also be used in exactly the same way in TreeView (which is a preview in JavaFX 1.3), and it is likely to also underpin any future TableView control.
One of the really neat things about the JavaFX ListView control is the Cell API, and the ability to have dynamically variable row heights, without sacrificing performance or scalability. To accomplish this, we’ll write a custom Cell factory which will create a Cell who’s size depends on some state.
To recap briefly, to remain scalable and fast, the ListView reuses Cells for rendering each row in the ListView. Because it reuses Cells, each Cell needs to be designed so that it does the right thing no matter what row it is asked to represent — even empty rows which are used only for filling out a ListView and not for actually holding valid data. (more…)
We have not yet provided a SplitView Control in JavaFX (and it is not in the plan for 1.3). However, the main reason is that it is relatively simple to write one from scratch so we’re focusing on some of the harder things (like TreeViews). I was asked recently how to go about writing a SplitView in JavaFX, so I decided to write a very short blog post with sample code from a demo I wrote for this past Devoxx. (more…)
In a couple hours Jasper and I will be presenting a talk titled “Enterprising JavaFX” at Devoxx. The main purpose of the talk is to describe how to use JavaFX for writing enterprise application content. Here’s a quick teaser screenshot of one of the apps we’re going to describe:
Jira Dashboard Application
We’ll be writing some additional blog posts over the next few weeks describing various tips n’ tricks as to how we used web services in this app, how we wrote the custom list cells, and so forth.
