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Elaborate on Fl_Tab's transparent region (behind and to the right of tabs),

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and some example code on how to keep tab heights constant. (Thanks to Ian MacArthur's post on fltk.general)


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@9954 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
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Greg Ercolano
2013-08-05 18:05:44 +00:00
parent c450606e4e
commit a00dd72b8f
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FL/Fl_Tabs.H
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@@ -50,7 +50,26 @@
fluid browser to select each child group and resize them until fluid browser to select each child group and resize them until
the tabs look the way you want them to. the tabs look the way you want them to.
Typical use: The background area behind and to the right of the tabs is transparent,
inheriting the color of the parent. The setting of Fl_Tabs::box()
does not affect this. So, if Fl_Tabs is resized by itself, without
the parent, you may need to force the parent to redraw() after resizing
to prevent artifacts in this "transparent" region.
Resizing note: when Fl_Tabs is resized vertically, the default
behavior scales the tab's height as well as its children.
To keep the tab height constant during resizing, set the
tab widget's resizable() to one of the tab's children, i.e.
\code
tabs = new Fl_Tabs(..);
child_a = new Fl_Group(..);
child_b = new Fl_Group(..);
tabs->end();
tabs->resizable(child_a); // keeps tab height constant
\endcode
A typical use of the Fl_Tabs widget:
\code \code
Fl_Tabs *tabs = new Fl_Tabs(10,10,300,200); Fl_Tabs *tabs = new Fl_Tabs(10,10,300,200);
{ {