mscroll_widget.h

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#ifndef _MGUI_WIDGET_SCROLL_H
#define _MGUI_WIDGET_SCROLL_H
 

#ifdef __cplusplus
extern "C" {
#endif  /* __cplusplus */

#define NCSCTRL_SCROLLWIDGET   NCSCLASSNAME("scrollwidget")

typedef struct _mScrollWidget mScrollWidget;
typedef struct _mScrollWidgetClass mScrollWidgetClass;
typedef struct _mScrollWidgetRenderer mScrollWidgetRenderer;

enum ncsSwgtDrawMode
{
   NCSID_SWGT_AUTO = 0,
   NCSID_SWGT_ALWAYS,
   NCSID_SWGT_NEVER
};

#define mScrollWidgetHeader(className)  \
        mWidgetHeader(className)            \
    unsigned int realContWidth;         \
    unsigned int realContHeight;        \
    unsigned int hStepVal;              \
    unsigned int vStepVal;              \
    int          contX;                 \
    int          contY;                 \
    unsigned int contWidth;             \
    unsigned int contHeight;            \
    unsigned int visWidth;              \
    unsigned int visHeight;             \
    unsigned int leftMargin;            \
    unsigned int topMargin;             \
    unsigned int rightMargin;           \
    unsigned int bottomMargin;          \
    unsigned int drawMode;

struct _mScrollWidget
{
        mScrollWidgetHeader(mScrollWidget)
};

#define mScrollWidgetClassHeader(clsName, parentClass)          \
        mWidgetClassHeader(clsName, parentClass)                    \
    void (*onHScroll)(clsName*, int code, int mouseX);          \
    void (*onVScroll)(clsName*, int code, int mouseY);          \
    void (*initMargins)(clsName*, int l, int t, int r, int b);  \
    void (*moveContent)(clsName*);                              \
    void (*resetViewPort)(clsName*, unsigned int,unsigned int); \
    void (*setScrollInfo)(clsName*, BOOL reDraw);               \
    BOOL (*makePosVisible)(clsName*, int x, int y);             \
    void (*getContRect)(clsName*, RECT *rcCont);                \
    void (*getVisRect)(clsName*, RECT *rcVis);                  \
    void (*viewportToWindow)(clsName*, int *x, int *y);         \
    void (*viewportToContent)(clsName*, int *x, int *y);        \
    void (*windowToViewport)(clsName*, int *x, int *y);         \
    void (*contentToViewport)(clsName*, int *x, int *y);        \
    void (*contentToWindow)(clsName*, int *x, int *y);          \
    void (*windowToContent)(clsName*, int *x, int *y);          \
    void (*refreshRect)(clsName*, const RECT *rc);              \
    BOOL (*isVisible)(clsName*, int x, int y);

struct _mScrollWidgetClass
{
        mScrollWidgetClassHeader(mScrollWidget, mWidget)
};

#define mScrollWidgetRendererHeader(clsName, parentClass) \
        mWidgetRendererHeader(clsName, parentClass)

struct  _mScrollWidgetRenderer {
        mScrollWidgetRendererHeader(mScrollWidget, mWidget)
};

MGNCS_EXPORT extern mScrollWidgetClass g_stmScrollWidgetCls;

enum mScrollWidgetProp
{
    NCSP_SWGT_CONTWIDTH = NCSP_WIDGET_MAX + 1,
        NCSP_SWGT_CONTHEIGHT,
        NCSP_SWGT_CONTX,
        NCSP_SWGT_CONTY,
        NCSP_SWGT_HSTEPVALUE,
        NCSP_SWGT_VSTEPVALUE,
        NCSP_SWGT_VISWIDTH,
        NCSP_SWGT_VISHEIGHT,
        NCSP_SWGT_MARGINRECT,
        NCSP_SWGT_DRAWMODE,
        NCSP_SWGT_MAX
};

#define NCSS_SWGT_SHIFT  NCSS_WIDGET_SHIFT

enum mScrollWidgetNotify {
    NCSN_SWGT_MAX = NCSN_WIDGET_MAX + 1
};

#ifdef __cplusplus
}
#endif  /* __cplusplus */

#endif /* _MGUI_WIDGET_SCROLL_H */