107 lines
1.9 KiB
C
107 lines
1.9 KiB
C
#include "spacer.h"
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static spacerVtbl vtbl;
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const classInfo spacerClassInfo =
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{
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&widgetClassInfo,
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"spacer"
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};
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spacer *spacerCreate(const char *id, spacerDirection direction)
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{
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spacer *instance = malloc(sizeof(spacer));
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if (instance == NULL)
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{
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return NULL;
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}
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// Call the constructor
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spacerInit(instance, id, direction);
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// Return the new object
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return instance;
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}
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static void spacerInitVtbl(spacer *self)
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{
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static bool initialised = false;
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if (!initialised)
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{
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// Copy our parents vtable into ours
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vtbl.widgetVtbl = *(WIDGET(self)->vtbl);
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// Overload widget's destroy, draw and size methods
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vtbl.widgetVtbl.destroy = spacerDestroyImpl;
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vtbl.widgetVtbl.doDraw = spacerDoDrawImpl;
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vtbl.widgetVtbl.getMinSize = spacerGetMinSizeImpl;
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vtbl.widgetVtbl.getMaxSize = spacerGetMaxSizeImpl;
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initialised = true;
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}
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// Replace our parents vtable with our own
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WIDGET(self)->vtbl = &vtbl.widgetVtbl;
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// Set our vtablr
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self->vtbl = &vtbl;
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}
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void spacerInit(spacer *self, const char *id, spacerDirection direction)
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{
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// Init our parent
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widgetInit(WIDGET(self), id);
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// Prepare our vtable
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spacerInitVtbl(self);
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// Set our type
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WIDGET(self)->classInfo = &spacerClassInfo;
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// Set our direction
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self->direction = direction;
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}
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void spacerDestroyImpl(widget *self)
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{
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// Call our parents destructor
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widgetDestroyImpl(self);
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}
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size spacerGetMinSizeImpl(widget *self)
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{
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(void) self;
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// We have no minimum size
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size minSize = { 0, 0 };
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return minSize;
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}
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size spacerGetMaxSizeImpl(widget *self)
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{
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size maxSize = { 0, 0 };
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switch (SPACER(self)->direction)
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{
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case SPACER_DIRECTION_HORIZONTAL:
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// We have no max horizontal (x-axis) size
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maxSize.x = INT16_MAX;
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break;
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case SPACER_DIRECTION_VERTICAL:
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// We have no max vertical (y-axis) size
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maxSize.y = INT16_MAX;
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break;
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}
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return maxSize;
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}
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void spacerDoDrawImpl(widget *self)
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{
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// NO-OP
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(void) self;
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}
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