93 lines
1.5 KiB
C
93 lines
1.5 KiB
C
#ifndef HBOX_H_
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#define HBOX_H_
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#include "widget.h"
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/*
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* Forward declarations
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*/
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typedef struct _hBox hBox;
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typedef struct _hBoxVtbl hBoxVtbl;
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/*
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* The possible vertical sides a child can be aligned to
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*/
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typedef enum
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{
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TOP,
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MIDDLE,
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BOTTOM
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} vAlign;
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struct _hBoxVtbl
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{
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widgetVtbl widgetVtbl;
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// No additional virtual methods
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};
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/*
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*
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*/
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struct _hBox
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{
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/*
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* Parent
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*/
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widget widget;
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/*
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* Our vtable
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*/
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hBoxVtbl *vtbl;
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/*
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* Child alignment
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*/
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vAlign vAlignment;
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};
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/*
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* Type information
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*/
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extern const classInfo hBoxClassInfo;
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/*
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* Helper macros
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*/
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#define HBOX(self) (assert(widgetIsA(WIDGET(self), &hBoxClassInfo)), \
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(hBox *) (self))
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/*
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* Protected methods
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*/
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void hBoxInit(hBox *instance, const char *id);
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void hBoxDestroyImpl(widget *instance);
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bool hBoxDoLayoutImpl(widget *self);
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void hBoxDoDrawImpl(widget *self);
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size hBoxGetMinSizeImpl(widget *self);
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size hBoxGetMaxSizeImpl(widget *self);
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/*
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* Public methods
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*/
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/**
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* Constructs a new hBox object and returns it.
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*
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* @param id The id of the widget.
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* @return A pointer to an hBox on success otherwise NULL.
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*/
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hBox *hBoxCreate(const char *id);
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/**
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* Sets the alignment of child widgets of self. This comes into effect when the
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* maximum vertical size of the child widgets is less than that or self.
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*
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* @param self The hBox to set the alignment properties of.
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* @param v The vertical alignment scheme to use.
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*/
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void hBoxSetVAlign(hBox *self, vAlign v);
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#endif /*HBOX_H_*/
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