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Difference between revisions of "PDE/Incubator/Picasso"
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| + | === Tips === | ||
| + | |||
| + | By painting the workbench with Picasso you can easily spot layout issues such as: | ||
| + | |||
| + | * Unnecessary margin padding on <code>Composite</code> widgets. This is typically caused by using <code>GridLayout</code> and not setting the <code>marginWidth</code> and <code>marginHeight</code> fields to <code>0</code>. | ||
| + | * Radio buttons and checkboxes that stretch to consume all avaiable horzontal whitespace. This results in the whitespace to the right of the label being clickable. Doing this can result in the user accidentally selecting a radio button or toggling a checkbox by simply giving focus to the UI. As with push buttons, radio buttons and checkboxes (they're buttons too) should generally not stretch. | ||
| + | * Inappropriate stretching and whitespace consumption. | ||
Revision as of 11:10, 7 May 2008
Work Area
The goal of Picasso is to provide a utility to help UI debugging. Picasso does this by painting the workbench in a way to aid debugging.
Developers
- Chris Aniszczyk
- Simon Archer
Plug-ins
Painting with Picasso
To use Picasso, simply check it out of CVS and then launch with the tracing options enabled:
Tips
By painting the workbench with Picasso you can easily spot layout issues such as:
- Unnecessary margin padding on
Compositewidgets. This is typically caused by usingGridLayoutand not setting themarginWidthandmarginHeightfields to0. - Radio buttons and checkboxes that stretch to consume all avaiable horzontal whitespace. This results in the whitespace to the right of the label being clickable. Doing this can result in the user accidentally selecting a radio button or toggling a checkbox by simply giving focus to the UI. As with push buttons, radio buttons and checkboxes (they're buttons too) should generally not stretch.
- Inappropriate stretching and whitespace consumption.