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(svn r17755) -Codechange: Allow for a zero-size display plane in a NWidgetStacked widget to hide its child widgets.

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alberth
2009-10-10 14:20:38 +00:00
parent 402d0d05c9
commit cfbd5ba59b
2 changed files with 26 additions and 2 deletions
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9
src/widget_type.h
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@@ -376,8 +376,15 @@ protected:
NWidgetBase *tail; ///< Pointer to last widget in container.
};
static const int STACKED_SELECTION_ZERO_SIZE = INT_MAX; ///< Display plane value for getting a zero-size widget.
/** Stacked widgets, widgets all occupying the same space in the window.
* @note the semantics difference between #NWID_SELECTION and #NWID_LAYERED is currently not used.
* #NWID_SELECTION allows for selecting one of several panels (planes) to tbe displayed. All planes must have the same size.
* Since all planes are also initialized, switching between different planes can be done while the window is displayed.
*
* There is also a special plane #STACKED_SELECTION_ZERO_SIZE which always has zero size, and is not resizable or fillable. It is used to make all child
* planes of the widget disappear. Unlike the regular display planes, switching from or to the #STACKED_SELECTION_ZERO_SIZE plane means that a
* #Windows::ReInit() is needed to re-initialize the window.
*/
class NWidgetStacked : public NWidgetContainer {
public: