/*! \class BLayoutBuilder::Base<> \ingroup interface \ingroup layout \brief Base for all other layout builders in the BLayoutBuilder namespace. This class provides the stack-like semantics for its subclasses. The BLayoutBuilder::Group, BLayoutBuilder::Grid and BLayoutBuilder::Split all provide methods such as AddGrid() AddGroup() and AddSplit(), which make a new builder, place it on top of your builder stack and return it. Now you are operating on the new builder. When you call the End() method on the new builder, you are returned the one you had previously been using. At any point, you are calling methods on whatever builder currently resides on the top of the stack. Here's an example of how these classes work. \code BLayoutBuilder::Group<>(B_HORIZONTAL) \endcode At this point our stack just contains a single builder, it looks like this: \li Group<> \code .AddGrid() \endcode Now there is a Grid builder on top of the stack, so it looks like this \li Group<>::GridBuilder \li Group<> Notice that the Grid on top of the stack is not a plain Grid<>, but a nested type from the Group<> class. This is an essential part of the builder classes, as this is what allows you to pop builders off the stack and get the correct type in return. \code .AddSplit() \endcode Now our stack looks like this: \li Group<>::GridBuilder::SplitBuilder \li Group<>::GridBuilder \li Group<> This could continue ad. nauseam, but at some point, you may finish with a builder, and you might want to continue manipulating the builder below it on the stack. To do this, you simply call the End() method like so: \code .End() \endcode And now the stack is back to this: \li Group<>::GridBuilder \li Group<> So you are again working with the grid builder. You can add more BLayoutItems or BViews, or even more builders. Here's how it will all look together. \code BLayoutBuilder::Group<>(B_HORIZONTAL) // working with the Group builder .AddGrid() // working with the Group<>::GridBuilder .AddSplit() // working with the Group<>::GridBuilder::SplitBuilder .End() // back to the Group<>::GridBuilder \endcode */ /*! \fn void BLayoutBuilder::Base::SetParent(ParentBuilder* parent) Internal method for use by BLayoutBuilder::Base subclasses, this is essential to the builder stack semantics */ /*! \fn ParentBuilder& BLayoutBuilder::Base::End() \brief Returns this builder's parent. */ /* template class Grid : public Base { public: typedef Grid ThisBuilder; typedef Group GroupBuilder; typedef Grid GridBuilder; typedef Split SplitBuilder; public: inline Grid(float horizontalSpacing = 0.0f, float verticalSpacing = 0.0f); inline Grid(BWindow* window, float horizontalSpacing = 0.0f, float verticalSpacing = 0.0f); inline Grid(BGridLayout* layout); inline Grid(BGridView* view); inline BGridLayout* Layout() const; inline BView* View() const; inline ThisBuilder& GetLayout(BGridLayout** _layout); inline ThisBuilder& GetView(BView** _view); inline ThisBuilder& Add(BView* view, int32 column, int32 row, int32 columnCount = 1, int32 rowCount = 1); inline ThisBuilder& Add(BLayoutItem* item, int32 column, int32 row, int32 columnCount = 1, int32 rowCount = 1); inline ThisBuilder& AddMenuField(BMenuField* menuField, int32 column, int32 row, alignment labelAlignment = B_ALIGN_HORIZONTAL_UNSET, int32 columnCount = 1, int32 rowCount = 1); inline ThisBuilder& AddTextControl(BTextControl* textControl, int32 column, int32 row, alignment labelAlignment = B_ALIGN_HORIZONTAL_UNSET, int32 columnCount = 1, int32 rowCount = 1); inline GroupBuilder AddGroup(enum orientation orientation, float spacing, int32 column, int32 row, int32 columnCount = 1, int32 rowCount = 1); inline GroupBuilder AddGroup(BGroupView* groupView, int32 column, int32 row, int32 columnCount = 1, int32 rowCount = 1); inline GroupBuilder AddGroup(BGroupLayout* groupLayout, int32 column, int32 row, int32 columnCount = 1, int32 rowCount = 1); inline GridBuilder AddGrid(float horizontalSpacing, float verticalSpacing, int32 column, int32 row, int32 columnCount = 1, int32 rowCount = 1); inline GridBuilder AddGrid(BGridLayout* gridLayout, int32 column, int32 row, int32 columnCount = 1, int32 rowCount = 1); inline GridBuilder AddGrid(BGridView* gridView, int32 column, int32 row, int32 columnCount = 1, int32 rowCount = 1); inline SplitBuilder AddSplit(enum orientation orientation, float spacing, int32 column, int32 row, int32 columnCount = 1, int32 rowCount = 1); inline SplitBuilder AddSplit(BSplitView* splitView, int32 column, int32 row, int32 columnCount = 1, int32 rowCount = 1); inline ThisBuilder& SetColumnWeight(int32 column, float weight); inline ThisBuilder& SetRowWeight(int32 row, float weight); inline ThisBuilder& SetInsets(float left, float top, float right, float bottom); inline operator BGridLayout*(); private: BGridLayout* fLayout; }; template class Split : public Base { public: typedef Split ThisBuilder; typedef Group GroupBuilder; typedef Grid GridBuilder; typedef Split SplitBuilder; public: inline Split(enum orientation orientation = B_HORIZONTAL, float spacing = 0.0f); inline Split(BSplitView* view); inline BSplitView* View() const; inline ThisBuilder& GetView(BView** _view); inline ThisBuilder& GetSplitView(BSplitView** _view); inline ThisBuilder& Add(BView* view); inline ThisBuilder& Add(BView* view, float weight); inline ThisBuilder& Add(BLayoutItem* item); inline ThisBuilder& Add(BLayoutItem* item, float weight); inline GroupBuilder AddGroup(enum orientation orientation, float spacing = 0.0f, float weight = 1.0f); inline GroupBuilder AddGroup(BGroupView* groupView, float weight = 1.0f); inline GroupBuilder AddGroup(BGroupLayout* groupLayout, float weight = 1.0f); inline GridBuilder AddGrid(float horizontalSpacing = 0.0f, float verticalSpacing = 0.0f, float weight = 1.0f); inline GridBuilder AddGrid(BGridView* gridView, float weight = 1.0f); inline GridBuilder AddGrid(BGridLayout* gridLayout, float weight = 1.0f); inline SplitBuilder AddSplit(enum orientation orientation, float spacing = 0.0f, float weight = 1.0f); inline SplitBuilder AddSplit(BSplitView* splitView, float weight = 1.0f); inline ThisBuilder& SetCollapsible(bool collapsible); inline ThisBuilder& SetCollapsible(int32 index, bool collapsible); inline ThisBuilder& SetCollapsible(int32 first, int32 last, bool collapsible); inline ThisBuilder& SetInsets(float left, float top, float right, float bottom); inline operator BSplitView*(); private: BSplitView* fView; };