Form layout improvements
------------------------
Key: PIVOT-331
URL: https://issues.apache.org/jira/browse/PIVOT-331
Project: Pivot
Issue Type: Improvement
Components: wtk
Reporter: Todd Volkert
Priority: Minor
Fix For: 1.4.1
Attachments: form-layout-mockup.png, screenshot.png
Graphic designers often want to lay out forms such that the vertical spacing
between the baselines of the form elements is predictable. Though Pivot's Form
can now align the baselines of its fields with their labels, it provides no way
to coordinate the vertical spacing of the baselines. Take, for example, the
following WTKX:
<Window maximized="true"
xmlns:wtkx="http://pivot.apache.org/wtkx";
xmlns="org.apache.pivot.wtk">
<content>
<CardPane styles="{padding:10}">
<Form>
<sections>
<Form.Section>
<Label Form.label="Field 1" text="Foo"/>
<Label Form.label="Field 2" text="Bar"/>
<TextInput Form.label="Field 3" text="Baz"/>
<TextInput Form.label="Field 4" text="Something Else"/>
</Form.Section>
</sections>
</Form>
</CardPane>
</content>
</Window>
It produces the attached screenshot, where the vertical spacing between the
baselines is unpredictable, even though the form's "verticalSpacing" style is
evenly applied. Contrast this with the attached mockup provided by a graphic
designer, where they clearly specify the layout in terms of spacing between
baselines.
It's not clear how best to achieve this feature from an architectural point of
view. Ideas are welcome in this ticket.
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