Month: August 2016

Working on the SpreadsheetView taught me that I had to profile my application on a regular basis. In fact, I always discover something.

But it’s not always simple to find bad implementation or memory leaks. For example, I rarely put some images inside my SpreadsheetView. I recently discovered a SpreadsheetView, built by a colleague, with the same image repeated on all rows. And just like that, you take up to 35% of your time fetching and displaying images!
Continue reading “About caching and optimizing your application.”

Currently, you have three closing options for a TabPane, that you can set with TabClosingPolicy :

• All_TABS : All tabs will have the option to be closed and have the cross displayed in the upper-right corner.
• SELECTED_TAB : Only the selected tab will have the option to be closed.
• UNAVAILABLE : Tabs can not be closed by the user.

Continue reading “Close options for TabPane”

In my application, I often show some “popup window” for user’s input.

Quite often, I simply use JavaFX Alert class, and it does the trick :

Alert alert = new Alert(Alert.AlertType.WARNING);
alert.setHeaderText("Be careful");
alert.setContentText("I warned you");
alert.showAndWait();

But sometimes, I need to display more complex windows and I also want to remember where the user has left the window. For example, if the user has placed the search window in the upper-left corner. If he closes it and opens it again, maybe he would like to see it appear in the same spot.
Continue reading “Is my Stage visible ?”