nano-x.h

针对嵌入式micro window系统

  GR_WINDOW_ID otherid;		/* new/old focus id for focus events*/
} GR_EVENT_GENERAL;

/* Events for mouse motion or mouse position. */
typedef struct {
  GR_EVENT_TYPE type;		/* event type */
  GR_WINDOW_ID wid;		/* window id event delivered to */
  GR_WINDOW_ID subwid;		/* sub-window id (pointer was in) */
  GR_COORD rootx;		/* root window x coordinate */
  GR_COORD rooty;		/* root window y coordinate */
  GR_COORD x;			/* window x coordinate of mouse */
  GR_COORD y;			/* window y coordinate of mouse */
  GR_BUTTON buttons;		/* current state of buttons */
  GR_KEYMOD modifiers;		/* modifiers (MWKMOD_SHIFT, etc)*/
} GR_EVENT_MOUSE;

/* GrRegisterInput event*/
typedef struct {
  GR_EVENT_TYPE type;		/* event type */
  int		fd;		/* input fd*/
} GR_EVENT_FDINPUT;

/* GR_EVENT_TYPE_UPDATE */
typedef struct {
  GR_EVENT_TYPE type;		/* event type */
  GR_WINDOW_ID wid;		/* select window id*/
  GR_WINDOW_ID subwid;		/* update window id (=wid for UPDATE event)*/
  GR_COORD x;			/* new window x coordinate */
  GR_COORD y;			/* new window y coordinate */
  GR_SIZE width;		/* new width */
  GR_SIZE height;		/* new height */
  GR_UPDATE_TYPE utype;		/* update_type */
} GR_EVENT_UPDATE;

/* GR_EVENT_TYPE_SCREENSAVER */
typedef struct {
  GR_EVENT_TYPE type;		/* event type */
  GR_BOOL activate;		/* true = activate, false = deactivate */
} GR_EVENT_SCREENSAVER;

/* GR_EVENT_TYPE_CLIENT_DATA_REQ */
typedef struct {
  GR_EVENT_TYPE type;		/* event type */
  GR_WINDOW_ID wid;		/* ID of requested window */
  GR_WINDOW_ID rid;		/* ID of window to send data to */
  GR_SERIALNO serial;		/* Serial number of transaction */
  GR_MIMETYPE mimetype;		/* Type to supply data as */
} GR_EVENT_CLIENT_DATA_REQ;

/* GR_EVENT_TYPE_CLIENT_DATA */
typedef struct {
  GR_EVENT_TYPE type;		/* event type */
  GR_WINDOW_ID wid;		/* ID of window data is destined for */
  GR_WINDOW_ID rid;		/* ID of window data is from */
  GR_SERIALNO serial;		/* Serial number of transaction */
  unsigned long len;		/* Total length of data */
  unsigned long datalen;	/* Length of following data */
  void *data;			/* Pointer to data (filled in on client side) */
} GR_EVENT_CLIENT_DATA;

/* GR_EVENT_TYPE_SELECTION_CHANGED */
typedef struct {
  GR_EVENT_TYPE type;		/* event type */
  GR_WINDOW_ID new_owner;	/* ID of new selection owner */
} GR_EVENT_SELECTION_CHANGED;

/*
 * Union of all possible event structures.
 * This is the structure returned by the GrGetNextEvent and similar routines.
 */
typedef union {
  GR_EVENT_TYPE type;			/* event type */
  GR_EVENT_ERROR error;			/* error event */
  GR_EVENT_GENERAL general;		/* general window events */
  GR_EVENT_BUTTON button;		/* button events */
  GR_EVENT_KEYSTROKE keystroke;		/* keystroke events */
  GR_EVENT_EXPOSURE exposure;		/* exposure events */
  GR_EVENT_MOUSE mouse;			/* mouse motion events */
  GR_EVENT_FDINPUT fdinput;		/* fd input events*/
  GR_EVENT_UPDATE update;		/* window update events */
  GR_EVENT_SCREENSAVER screensaver; 	/* Screen saver events */
  GR_EVENT_CLIENT_DATA_REQ clientdatareq; /* Request for client data events */
  GR_EVENT_CLIENT_DATA clientdata;	/* Client data events */
  GR_EVENT_SELECTION_CHANGED selectionchanged; /* Selection owner changed */
} GR_EVENT;

typedef void (*GR_FNCALLBACKEVENT)(GR_EVENT *);

/* Pixel packings within words. */
#define	GR_BITMAPBITS	(sizeof(GR_BITMAP) * 8)
#define	GR_ZEROBITS	((GR_BITMAP) 0x0000)
#define	GR_ONEBITS	((GR_BITMAP) 0xffff)
#define	GR_FIRSTBIT	((GR_BITMAP) 0x8000)
#define	GR_LASTBIT	((GR_BITMAP) 0x0001)
#define	GR_BITVALUE(n)	((GR_BITMAP) (((GR_BITMAP) 1) << (n)))
#define	GR_SHIFTBIT(m)	((GR_BITMAP) ((m) << 1))
#define	GR_NEXTBIT(m)	((GR_BITMAP) ((m) >> 1))
#define	GR_TESTBIT(m)	(((m) & GR_FIRSTBIT) != 0)

/* Size of bitmaps. */
#define	GR_BITMAP_SIZE(width, height)	((height) * \
  (((width) + sizeof(GR_BITMAP) * 8 - 1) / (sizeof(GR_BITMAP) * 8)))

#define	GR_MAX_BITMAP_SIZE \
  GR_BITMAP_SIZE(MAX_CURSOR_SIZE, MAX_CURSOR_SIZE)

/* GrGetSysColor colors*/
/* desktop background*/
#define GR_COLOR_DESKTOP           0

/* caption colors*/
#define GR_COLOR_ACTIVECAPTION     1
#define GR_COLOR_ACTIVECAPTIONTEXT 2
#define GR_COLOR_INACTIVECAPTION   3
#define GR_COLOR_INACTIVECAPTIONTEXT 4

/* 3d border shades*/
#define GR_COLOR_WINDOWFRAME       5
#define GR_COLOR_BTNSHADOW         6
#define GR_COLOR_3DLIGHT           7
#define GR_COLOR_BTNHIGHLIGHT      8

/* top level application window backgrounds/text*/
#define GR_COLOR_APPWINDOW         9
#define GR_COLOR_APPTEXT           10

/* button control backgrounds/text (usually same as app window colors)*/
#define GR_COLOR_BTNFACE           11
#define GR_COLOR_BTNTEXT           12

/* edit/listbox control backgrounds/text, selected highlights*/
#define GR_COLOR_WINDOW            13
#define GR_COLOR_WINDOWTEXT        14
#define GR_COLOR_HIGHLIGHT         15
#define GR_COLOR_HIGHLIGHTTEXT     16
#define GR_COLOR_GRAYTEXT          17

/* menu backgrounds/text*/
#define GR_COLOR_MENUTEXT          18
#define GR_COLOR_MENU              19

/* Error strings per error number*/
#define GR_ERROR_STRINGS		\
	"",				\
	"Bad window id: %d\n",		\
	"Bad graphics context: %d\n",	\
	"Bad cursor size\n",		\
	"Out of server memory\n",	\
	"Bad window size: %d\n",	\
	"Keyboard error\n",		\
	"Mouse error\n",		\
	"Input only window: %d\n",	\
	"Illegal on root window: %d\n",	\
	"Clipping overflow\n",		\
	"Screen error\n",		\
	"Unmapped focus window: %d\n",	\
	"Bad drawing mode gc: %d\n"

extern char *nxErrorStrings[];

/* Public graphics routines. */
void		GrFlush(void);
int		GrOpen(void);
void		GrClose(void);
void		GrGetScreenInfo(GR_SCREEN_INFO *sip);
GR_COLOR	GrGetSysColor(int index);
GR_WINDOW_ID	GrNewWindow(GR_WINDOW_ID parent, GR_COORD x, GR_COORD y,
			GR_SIZE width, GR_SIZE height, GR_SIZE bordersize,
			GR_COLOR background, GR_COLOR bordercolor);
GR_WINDOW_ID    GrNewPixmap(GR_SIZE width, GR_SIZE height, void * addr);
GR_WINDOW_ID	GrNewInputWindow(GR_WINDOW_ID parent, GR_COORD x, GR_COORD y,
				GR_SIZE width, GR_SIZE height);
void		GrDestroyWindow(GR_WINDOW_ID wid);
GR_GC_ID	GrNewGC(void);
GR_GC_ID	GrCopyGC(GR_GC_ID gc);
void		GrGetGCInfo(GR_GC_ID gc, GR_GC_INFO *gcip);
void		GrDestroyGC(GR_GC_ID gc);
GR_REGION_ID	GrNewRegion(void);
GR_REGION_ID	GrNewPolygonRegion(int mode, GR_COUNT count, GR_POINT *points);
void		GrDestroyRegion(GR_REGION_ID region);
void		GrUnionRectWithRegion(GR_REGION_ID region, GR_RECT *rect);
void		GrUnionRegion(GR_REGION_ID dst_rgn, GR_REGION_ID src_rgn1,
			GR_REGION_ID src_rgn2);
void		GrIntersectRegion(GR_REGION_ID dst_rgn, GR_REGION_ID src_rgn1,
			GR_REGION_ID src_rgn2);
void		GrSubtractRegion(GR_REGION_ID dst_rgn, GR_REGION_ID src_rgn1,
			GR_REGION_ID src_rgn2);
void		GrXorRegion(GR_REGION_ID dst_rgn, GR_REGION_ID src_rgn1,
			GR_REGION_ID src_rgn2);
void		GrSetGCRegion(GR_GC_ID gc, GR_REGION_ID region);
GR_BOOL		GrPointInRegion(GR_REGION_ID region, GR_COORD x, GR_COORD y);
int		GrRectInRegion(GR_REGION_ID region, GR_COORD x, GR_COORD y,
			GR_COORD w, GR_COORD h);
GR_BOOL		GrEmptyRegion(GR_REGION_ID region);
GR_BOOL		GrEqualRegion(GR_REGION_ID rgn1, GR_REGION_ID rgn2);
void		GrOffsetRegion(GR_REGION_ID region, GR_SIZE dx, GR_SIZE dy);
int		GrGetRegionBox(GR_REGION_ID region, GR_RECT *rect);
void		GrMapWindow(GR_WINDOW_ID wid);
void		GrUnmapWindow(GR_WINDOW_ID wid);
void		GrRaiseWindow(GR_WINDOW_ID wid);
void		GrLowerWindow(GR_WINDOW_ID wid);
void		GrMoveWindow(GR_WINDOW_ID wid, GR_COORD x, GR_COORD y);
void		GrResizeWindow(GR_WINDOW_ID wid, GR_SIZE width, GR_SIZE height);
void		GrReparentWindow(GR_WINDOW_ID wid, GR_WINDOW_ID pwid,
			GR_COORD x, GR_COORD y);
void		GrGetWindowInfo(GR_WINDOW_ID wid, GR_WINDOW_INFO *infoptr);
void		GrSetWMProperties(GR_WINDOW_ID wid, GR_WM_PROPERTIES *props);
void		GrGetWMProperties(GR_WINDOW_ID wid, GR_WM_PROPERTIES *props);
GR_FONT_ID	GrCreateFont(GR_CHAR *name, GR_COORD height,
			GR_LOGFONT *plogfont);
void		GrSetFontSize(GR_FONT_ID fontid, GR_COORD size);
void		GrSetFontRotation(GR_FONT_ID fontid, int tenthsdegrees);
void		GrSetFontAttr(GR_FONT_ID fontid, int setflags, int clrflags);
void		GrDestroyFont(GR_FONT_ID fontid);
void		GrGetFontInfo(GR_FONT_ID font, GR_FONT_INFO *fip);
GR_WINDOW_ID	GrGetFocus(void);
void		GrSetFocus(GR_WINDOW_ID wid);
void		GrSetBorderColor(GR_WINDOW_ID wid, GR_COLOR color);
void		GrClearWindow(GR_WINDOW_ID wid, GR_BOOL exposeflag);
void		GrSelectEvents(GR_WINDOW_ID wid, GR_EVENT_MASK eventmask);
void		GrGetNextEvent(GR_EVENT *ep);
void		GrGetNextEventTimeout(GR_EVENT *ep, GR_TIMEOUT timeout);
void		GrCheckNextEvent(GR_EVENT *ep);
int		GrPeekEvent(GR_EVENT *ep);
void		GrLine(GR_DRAW_ID id, GR_GC_ID gc, GR_COORD x1, GR_COORD y1,
			GR_COORD x2, GR_COORD y2);
void		GrPoint(GR_DRAW_ID id, GR_GC_ID gc, GR_COORD x, GR_COORD y);
void		GrPoints(GR_DRAW_ID id, GR_GC_ID gc, GR_COUNT count,
			GR_POINT *pointtable);
void		GrRect(GR_DRAW_ID id, GR_GC_ID gc, GR_COORD x, GR_COORD y,
			GR_SIZE width, GR_SIZE height);
void		GrFillRect(GR_DRAW_ID id, GR_GC_ID gc, GR_COORD x, GR_COORD y,
			GR_SIZE width, GR_SIZE height);
void		GrPoly(GR_DRAW_ID id, GR_GC_ID gc, GR_COUNT count,
			GR_POINT *pointtable);
void		GrFillPoly(GR_DRAW_ID id, GR_GC_ID gc, GR_COUNT count,
			GR_POINT *pointtable);
void		GrEllipse(GR_DRAW_ID id, GR_GC_ID gc, GR_COORD x, GR_COORD y,
			GR_SIZE rx, GR_SIZE ry);
void		GrFillEllipse(GR_DRAW_ID id, GR_GC_ID gc, GR_COORD x,
			GR_COORD y, GR_SIZE rx, GR_SIZE ry);
void		GrArc(GR_DRAW_ID id, GR_GC_ID gc, GR_COORD x, GR_COORD y,
			GR_SIZE rx, GR_SIZE ry, GR_COORD ax, GR_COORD ay,
			GR_COORD bx, GR_COORD by, int type);
void		GrArcAngle(GR_DRAW_ID id, GR_GC_ID gc, GR_COORD x, GR_COORD y,
			GR_SIZE rx, GR_SIZE ry, GR_COORD angle1,
			GR_COORD angle2, int type); /* floating point required*/
void		GrSetGCForeground(GR_GC_ID gc, GR_COLOR foreground);
void		GrSetGCBackground(GR_GC_ID gc, GR_COLOR background);
void		GrSetGCUseBackground(GR_GC_ID gc, GR_BOOL flag);
void		GrSetGCMode(GR_GC_ID gc, int mode);
void		GrSetGCFont(GR_GC_ID gc, GR_FONT_ID font);
void		GrGetGCTextSize(GR_GC_ID gc, void *str, int count, int flags,
			GR_SIZE *retwidth, GR_SIZE *retheight,GR_SIZE *retbase);
void		GrReadArea(GR_DRAW_ID id, GR_COORD x, GR_COORD y, GR_SIZE width,
			GR_SIZE height, GR_PIXELVAL *pixels);
void		GrArea(GR_DRAW_ID id, GR_GC_ID gc, GR_COORD x, GR_COORD y,
			GR_SIZE width,GR_SIZE height,void *pixels,int pixtype);
void            GrCopyArea(GR_DRAW_ID id, GR_GC_ID gc, GR_COORD x, GR_COORD y,
			GR_SIZE width, GR_SIZE height, GR_DRAW_ID srcid,
			GR_COORD srcx, GR_COORD srcy, int op);
void		GrBitmap(GR_DRAW_ID id, GR_GC_ID gc, GR_COORD x, GR_COORD y,
			GR_SIZE width, GR_SIZE height, GR_BITMAP *imagebits);
void		GrDrawImageBits(GR_DRAW_ID id,GR_GC_ID gc,GR_COORD x,GR_COORD y,
			GR_IMAGE_HDR *pimage);
void		GrDrawImageFromFile(GR_DRAW_ID id, GR_GC_ID gc, GR_COORD x,
			GR_COORD y, GR_SIZE width, GR_SIZE height,
			char *path, int flags);
GR_IMAGE_ID	GrLoadImageFromFile(char *path, int flags);
void		GrDrawImageToFit(GR_DRAW_ID id, GR_GC_ID gc, GR_COORD x,
			GR_COORD y, GR_SIZE width, GR_SIZE height,
			GR_IMAGE_ID imageid);
void		GrFreeImage(GR_IMAGE_ID id);
void		GrGetImageInfo(GR_IMAGE_ID id, GR_IMAGE_INFO *iip);
void		GrText(GR_DRAW_ID id, GR_GC_ID gc, GR_COORD x, GR_COORD y,
			void *str, GR_COUNT count, int flags);
void		GrSetCursor(GR_WINDOW_ID wid, GR_SIZE width, GR_SIZE height,
			GR_COORD hotx, GR_COORD hoty, GR_COLOR foreground,
			GR_COLOR background, GR_BITMAP *fbbitmap,
			GR_BITMAP *bgbitmap);
void		GrMoveCursor(GR_COORD x, GR_COORD y);
void		GrGetSystemPalette(GR_PALETTE *pal);
void		GrSetSystemPalette(GR_COUNT first, GR_PALETTE *pal);
void		GrFindColor(GR_COLOR c, GR_PIXELVAL *retpixel);
void		GrReqShmCmds(long shmsize);
void		GrInjectPointerEvent(MWCOORD x, MWCOORD y,
			int button, int visible);
void		GrInjectKeyboardEvent(GR_WINDOW_ID wid, GR_KEY keyvalue,
			GR_KEYMOD modifiers, GR_SCANCODE scancode,
			GR_BOOL pressed);
void		GrCloseWindow(GR_WINDOW_ID wid);
void		GrKillWindow(GR_WINDOW_ID wid);
void		GrSetScreenSaverTimeout(GR_TIMEOUT timeout);
void		GrSetSelectionOwner(GR_WINDOW_ID wid, GR_CHAR *typelist);
GR_WINDOW_ID	GrGetSelectionOwner(GR_CHAR **typelist);
void		GrRequestClientData(GR_WINDOW_ID wid, GR_WINDOW_ID rid,
			GR_SERIALNO serial, GR_MIMETYPE mimetype);
void		GrSendClientData(GR_WINDOW_ID wid, GR_WINDOW_ID did,
			GR_SERIALNO serial, GR_LENGTH len, GR_LENGTH thislen,
			void *data);
void		GrBell(void);
void		GrSetBackgroundPixmap(GR_WINDOW_ID wid, GR_WINDOW_ID pixmap,
			int flags);
void		GrRegisterInput(int fd);
void		GrMainLoop(GR_FNCALLBACKEVENT fncb);
GR_FNCALLBACKEVENT GrSetErrorHandler(GR_FNCALLBACKEVENT fncb);
void		GrDefaultErrorHandler(GR_EVENT *ep);

/* passive library entry points - available with client/server only*/
void		GrPrepareSelect(int *maxfd,void *rfdset);
void		GrServiceSelect(void *rfdset, GR_FNCALLBACKEVENT fncb);

/* nxutil.c - utility routines*/
GR_WINDOW_ID	GrNewWindowEx(GR_WM_PROPS props, GR_CHAR *title,
			GR_WINDOW_ID parent, GR_COORD x, GR_COORD y,
			GR_SIZE width, GR_SIZE height, GR_COLOR background);
void		GrDrawLines(GR_DRAW_ID w, GR_GC_ID gc, GR_POINT *points,
			GR_COUNT count);
GR_WINDOW_ID    GrNewPixmapFromData(GR_SIZE width, GR_SIZE height, 
			GR_COLOR foreground, GR_COLOR background, void * bits,
			int flags);

/* useful function macros*/
#define GrSetWindowBackgroundColor(wid,color) \
		{	GR_WM_PROPERTIES props;	\
			props.flags = GR_WM_FLAGS_BACKGROUND; \
			props.background = color; \
			GrSetWMProperties(wid, &props); \
		}
#define GrSetWindowBorderSize(wid,width) \
		{	GR_WM_PROPERTIES props;	\
			props.flags = GR_WM_FLAGS_BORDERSIZE; \
			props.bordersize = width; \
			GrSetWMProperties(wid, &props); \
		}
#define GrSetWindowBorderColor(wid,color) \
		{	GR_WM_PROPERTIES props;	\
			props.flags = GR_WM_FLAGS_BORDERCOLOR; \
			props.bordercolor = color; \
			GrSetWMProperties(wid, &props); \
		}
#define GrSetWindowTitle(wid,name) \
		{	GR_WM_PROPERTIES props;	\
			props.flags = GR_WM_FLAGS_TITLE; \
			props.title = (GR_CHAR *)name; \
			GrSetWMProperties(wid, &props); \
		}

#ifdef __cplusplus
}
#endif

/* RTEMS requires rtems_main()*/
#if __rtems__
#define main	rtems_main
#endif

#endif /* _NANO_X_H*/