legato_widget_image.h

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/*******************************************************************************
 Module for Microchip Graphics Library - Legato User Interface Library

  Company:
    Microchip Technology Inc.

  File Name:
    legato_widget_image.h

  Summary:


  Description:
    This module implements image widget functions.
*******************************************************************************/

#ifndef LEGATO_IMAGE_H
#define LEGATO_IMAGE_H

#include "gfx/legato/common/legato_common.h"

#if LE_IMAGE_WIDGET_ENABLED == 1

#ifdef __cplusplus
extern "C" {
#endif

#include "gfx/legato/widget/legato_widget.h"

typedef struct leImageWidget leImageWidget;
typedef struct leImage leImage;

// *****************************************************************************
// *****************************************************************************
// Section: Data Types and Constants
// *****************************************************************************
// *****************************************************************************

/* internal use only */
#define LE_IMAGEWIDGET_VTABLE(THIS_TYPE) \
    LE_WIDGET_VTABLE(THIS_TYPE) \
    \
    leImage*  (*getImage)(const THIS_TYPE* _this); \
    leResult  (*setImage)(THIS_TYPE* _this, leImage* img); \

typedef struct leImageWidgetVTable
{
    LE_IMAGEWIDGET_VTABLE(leImageWidget)
} leImageWidgetVTable;

// *****************************************************************************
/* Enumeration:
    leImageWidget

  Summary:
    Image widget struct definition

  Description:
    An image widget displays an image asset.

  Remarks:
    None.
*/
typedef struct leImageWidget
{
    leWidget widget; // widget base class

    const leImageWidgetVTable* fn;

    const leImage* image; // pointer to image asset
} leImageWidget;

// *****************************************************************************
// *****************************************************************************
// Section: Routines
// *****************************************************************************
// *****************************************************************************

leImageWidget* leImageWidget_New(void);

void leImageWidget_Constructor(leImageWidget* img);

#ifdef _DOXYGEN_
#define THIS_TYPE struct leWidget

virtual leImage* getImage(const leImageWidget* _this);


virtual leResult setImage(leImageWidget* _this,
                          leImage* img);

virtual leResult setDebugDrawStartCallback(leImageWidget* _this,
                                           leImageWidget_DrawEventCallback cb);

virtual void setDebugDrawEndCallback(leImageWidget* _this,
                                     leImageWidget_DrawEventCallback cb);

#undef THIS_TYPE
#endif

#ifdef __cplusplus
}
#endif

#endif // LE_IMAGE_WIDGET_ENABLED
#endif /* LEGATO_IMAGE_H */