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(svn r18606) -Codechange: Introduce several forms of zero-size stacked display planes.

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alberth
2009-12-22 20:43:25 +00:00
parent caa73efe93
commit e967f04123
8 changed files with 30 additions and 26 deletions
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16
src/widget_type.h
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@@ -312,15 +312,23 @@ 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.
/** Display planes with zero size for #NWidgetStacked. */
enum StackedZeroSizePlanes {
SZSP_VERTICAL = INT_MAX / 2, ///< Display plane with zero size horizontally, and filling and resizing vertically.
SZSP_HORIZONTAL, ///< Display plane with zero size vertically, and filling and resizing horizontally.
SZSP_NONE, ///< Display plane with zero size in both directions (none filling and resizing).
SZSP_BEGIN = SZSP_VERTICAL, ///< First zero-size plane.
};
/** Stacked widgets, widgets all occupying the same space in the window.
* #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.
* There are also a number of special planes (defined in #StackedZeroSizePlanes) that have zero size in one direction (and are stretchable in
* the other direction) or have zero size in both directions. They are used to make all child planes of the widget disappear.
* Unlike switching between the regular display planes (that all have the same size), switching from or to one of the zero-sized planes means that
* a #Windows::ReInit() is needed to re-initialize the window since its size changes.
*/
class NWidgetStacked : public NWidgetContainer {
public: