gdkregion-generic.h File Reference

Go to the source code of this file.

Classes
struct	_GdkRegion
struct	_POINTBLOCK

Macros
#define	EXTENTCHECK(r1, r2)
#define	EXTENTS(r, idRect)
#define	GROWREGION(reg, nRects)
#define	MEMCHECK(reg, rect, firstrect)
#define	CHECK_PREVIOUS(Reg, R, Rx1, Ry1, Rx2, Ry2)
#define	ADDRECT(reg, r, rx1, ry1, rx2, ry2)
#define	ADDRECTNOX(reg, r, rx1, ry1, rx2, ry2)
#define	EMPTY_REGION(pReg)   pReg->numRects = 0
#define	REGION_NOT_EMPTY(pReg)   pReg->numRects
#define	INBOX(r, x, y)
#define	NUMPTSTOBUFFER   200

Typedefs
typedef GdkSegment	GdkRegionBox
typedef struct _POINTBLOCK	POINTBLOCK

Macro Definition Documentation

ADDRECT

#define ADDRECT	(		reg,
			r,
			rx1,
			ry1,
			rx2,
			ry2
	)

Value:

    {\
    if (((rx1) < (rx2)) && ((ry1) < (ry2)) &&\
        CHECK_PREVIOUS((reg), (r), (rx1), (ry1), (rx2), (ry2))){\
              (r)->x1 = (rx1);\
              (r)->y1 = (ry1);\
              (r)->x2 = (rx2);\
              (r)->y2 = (ry2);\
              EXTENTS((r), (reg));\
              (reg)->numRects++;\
              (r)++;\
            }\
        }

Definition at line 124 of file gdkregion-generic.h.

ADDRECTNOX

#define ADDRECTNOX	(		reg,
			r,
			rx1,
			ry1,
			rx2,
			ry2
	)

Value:

            {\
            if ((rx1 < rx2) && (ry1 < ry2) &&\
                CHECK_PREVIOUS((reg), (r), (rx1), (ry1), (rx2), (ry2))){\
              (r)->x1 = (rx1);\
              (r)->y1 = (ry1);\
              (r)->x2 = (rx2);\
              (r)->y2 = (ry2);\
              (reg)->numRects++;\
              (r)++;\
            }\
        }

Definition at line 140 of file gdkregion-generic.h.

CHECK_PREVIOUS

#define CHECK_PREVIOUS	(		Reg,
			R,
			Rx1,
			Ry1,
			Rx2,
			Ry2
	)

Value:

               (!(((Reg)->numRects > 0)&&\
                  ((R-1)->y1 == (Ry1)) &&\
                  ((R-1)->y2 == (Ry2)) &&\
                  ((R-1)->x1 <= (Rx1)) &&\
                  ((R-1)->x2 >= (Rx2))))

Definition at line 116 of file gdkregion-generic.h.

EMPTY_REGION

#define EMPTY_REGION

(

pReg

)

pReg->numRects = 0

Definition at line 152 of file gdkregion-generic.h.

EXTENTCHECK

#define EXTENTCHECK	(		r1,
			r2
	)

Value:

        ((r1)->x2 > (r2)->x1 && \
         (r1)->x1 < (r2)->x2 && \
         (r1)->y2 > (r2)->y1 && \
         (r1)->y1 < (r2)->y2)

Definition at line 66 of file gdkregion-generic.h.

EXTENTS

#define EXTENTS	(		r,
			idRect
	)

Value:

            {\
            if((r)->x1 < (idRect)->extents.x1)\
              (idRect)->extents.x1 = (r)->x1;\
            if((r)->y1 < (idRect)->extents.y1)\
              (idRect)->extents.y1 = (r)->y1;\
            if((r)->x2 > (idRect)->extents.x2)\
              (idRect)->extents.x2 = (r)->x2;\
            if((r)->y2 > (idRect)->extents.y2)\
              (idRect)->extents.y2 = (r)->y2;\
        }

Definition at line 75 of file gdkregion-generic.h.

GROWREGION

#define GROWREGION	(		reg,
			nRects
	)

Value:

          {                                        \
          if ((nRects) == 0) {                                             \
            if ((reg)->rects != &(reg)->extents) {                         \
              g_free ((reg)->rects);                                       \
              (reg)->rects = &(reg)->extents;                              \
            }                                                              \
          }                                                                \
          else if ((reg)->rects == &(reg)->extents) {                      \
            (reg)->rects = g_new (GdkRegionBox, (nRects));                 \
            (reg)->rects[0] = (reg)->extents;                              \
          }                                                                \
          else                                                             \
            (reg)->rects = g_renew (GdkRegionBox, (reg)->rects, (nRects)); \
          (reg)->size = (nRects);                                          \
       }

Definition at line 86 of file gdkregion-generic.h.

INBOX

#define INBOX	(		r,
			x,
			y
	)

Value:

      ( ( ((r).x2 >  x)) && \
        ( ((r).x1 <= x)) && \
        ( ((r).y2 >  y)) && \
        ( ((r).y1 <= y)) )

Definition at line 156 of file gdkregion-generic.h.

MEMCHECK

#define MEMCHECK	(		reg,
			rect,
			firstrect
	)

Value:

        {                                                \
        if ((reg)->numRects >= ((reg)->size - 1)) {                              \
          GROWREGION(reg,2*(reg)->size);                                         \
          (rect) = &(firstrect)[(reg)->numRects];                                \
         }                                                                       \
       }

Definition at line 105 of file gdkregion-generic.h.

NUMPTSTOBUFFER

#define NUMPTSTOBUFFER   200

Definition at line 166 of file gdkregion-generic.h.

REGION_NOT_EMPTY

#define REGION_NOT_EMPTY

(

pReg

)

pReg->numRects

Definition at line 154 of file gdkregion-generic.h.

Typedef Documentation

GdkRegionBox

typedef GdkSegment GdkRegionBox

Definition at line 48 of file gdkregion-generic.h.

POINTBLOCK

typedef struct _POINTBLOCK POINTBLOCK