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About Dirk Lemmermann

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So far Dirk Lemmermann has created 111 blog entries.

FlexGantt for JavaFX 8 = FlexGanttFX

For the last 6 months I had the opportunity to port my FlexGantt Gantt charting framework for Swing to JavaFX 8. The concepts behind JavaFX are very different to Swing so the initial ramp-up phase was longer than I wanted it to be. However, in the meantime I feel confident that I am on the right track with my approach to Gantt charting with this new technology. The following videos show the current state of my development efforts. Project Planning The first video shows one of the most common use cases for Gantt charts: the display of a project [...]

By |2021-02-18T13:42:31+01:00January 8th, 2014|FlexGantt, Java, JavaFX|2 Comments
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A task monitor popover

My JavaFX developer life currently has a strong focus on the popover control I wrote and contributed to the ControlsFX project. I now find use cases for it all over the place. The latest addition is a task monitor control for the JavaFX version of FlexGantt. The monitor lists the background tasks that are running to load the Gantt chart data for each row. Once again I was inspired by Apple. This time by the "downloads" popover of Safari, which looks like this. Please note the fancy gray divider lines :-)

By |2021-02-18T13:42:32+01:00December 5th, 2013|ControlsFX, FlexGantt, Java, JavaFX|0 Comments
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A Popup Editor for JavaFX 8 / Part 2

Just a quick follow-up on the popup editor, which has been renamed to "PopOver". The current plan is to release it with the ControlsFX release 8.0.3 in early December. Jonathan and Eugene made me work hard for the last couple of days and I think the improvements to the control were worth it. It is more generic / flexible than before and it looks more elegant (the code, too). The biggest change is probably the move away from always using an accordion control inside the PopOver and instead using a more generic approach where any node can be set [...]

By |2021-02-18T13:42:32+01:00November 27th, 2013|ControlsFX, Java, JavaFX|7 Comments
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A Popup Editor for JavaFX 8

For the last couple of months I had the pleasure of working with JavaFX 8 in order to implement a sophisticated user interface for a planning and scheduling application. One of the features needed was a way to perform "in-place" editing, meaning a way to quickly edit some basic attributes of a user selected object. Following the principle "if you can't innovate, imitate" I took a look at how Apple is doing these kinds of things and surely enough iCal showed me everything I needed to know. iCal - The Role Model In iCal, when the user double clicks [...]

By |2021-02-18T13:42:32+01:00November 19th, 2013|ControlsFX, Java, JavaFX|13 Comments
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Collapp: First Release / Looking for Testers

I finally managed to release a first version of Collapp, a solution for collaborative project planning, and now I am looking for testers / early adopters. I have been working on it on and off for the last couple of years. In part to learn more about JEE and in part to continue work on FlexGantt (online demo), a framework for creating Gantt charts. I believe that I have now reached a point where a bigger group of people could take Collapp for a ride. Anyone interested can now try the online demo or download the full installation. The online demo allows [...]

By |2021-02-18T13:42:32+01:00November 5th, 2012|Collapp, Java, Swing|2 Comments
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The Best Swing Look & Feel: BizLaf

I recently started using the look and feel library BizLaf of Centigrade GmbH (Germany) and I have come to the conclusion that, after 13 years of programming Swing UIs, this is by far the best look and feel library for Java that I have ever used. Reason enough to blog about it and to share my thoughts. Prologue For the last 2 and a half years I have been working on my very own software project called "Collapp" for collaborative project planning. I have made it my mission to make it one of the most professional looking applications ever written [...]

By |2021-02-18T13:42:32+01:00May 10th, 2011|Collapp, Java, Swing|12 Comments
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Collapp Sponsor Search

I have been working on Collapp on and off for some time now and made a lot of progress, but it is still not production quality. To change this I am now trying to find a sponsor for this project. I really need to get paid so that I can commit the necessary time to this project. Collapp is a solution for collaborative project planning. Its goal is to have project leads and project team members all use the same tool. This way everybody is always informed about the current state of the project. Users can be members in [...]

By |2021-02-18T13:42:32+01:00January 28th, 2011|Collapp, FlexGantt, Java, Swing|3 Comments
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Collapp / MacWidgets @ JavaOne 2010

I have been notified this week that my talk about "Attractive and Portable MacOS X Swing Clients for J2EE" has been accepted for JavaOne 2010 in San Francisco. The conference takes place in September and I will try hard to have a feature-complete application to show as a case study. Please let me know if you are also attending JavaOne and would like to meet me there to discuss concepts, cooperations, contracting, consulting, UI stuff, Collapp, FlexGantt, etc...

By |2021-02-18T13:42:32+01:00May 15th, 2010|Collapp, FlexGantt, Java, Swing|0 Comments
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