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rect.c File Reference

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Defines

#define VALIDATERECT(prc, retval)   if (prc == NULL) return retval

Functions

BOOL APIENTRY SetRect (LPRECT prc, int left, int top, int right, int bottom)
BOOL APIENTRY CopyInflateRect (LPRECT prcDst, CONST RECT *prcSrc, int cx, int cy)
BOOL APIENTRY CopyOffsetRect (LPRECT prcDst, CONST RECT *prcSrc, int cx, int cy)
BOOL APIENTRY IsRectEmpty (CONST RECT *prc)
BOOL APIENTRY PtInRect (CONST RECT *prc, POINT pt)
BOOL APIENTRY OffsetRect (LPRECT prc, int cx, int cy)
BOOL APIENTRY InflateRect (LPRECT prc, int cx, int cy)
BOOL APIENTRY IntersectRect (LPRECT prcDst, CONST RECT *prcSrc1, CONST RECT *prcSrc2)
BOOL APIENTRY UnionRect (LPRECT prcDst, CONST RECT *prcSrc1, CONST RECT *prcSrc2)
BOOL APIENTRY EqualRect (CONST RECT *prc1, CONST RECT *prc2)
BOOL APIENTRY SubtractRect (LPRECT prcDst, CONST RECT *prcSrc1, CONST RECT *prcSrc2)
BOOL APIENTRY CopyRect (LPRECT prcDst, CONST RECT *prcSrc)
BOOL APIENTRY SetRectEmpty (LPRECT prc)
void RECTFromSIZERECT (PRECT prc, PCSIZERECT psrc)
void SIZERECTFromRECT (PSIZERECT psrc, LPCRECT prc)

Define Documentation

#define VALIDATERECT (  prc,
retval   )     if (prc == NULL) return retval
 

Definition at line 15 of file rect.c.

Referenced by CopyRect(), EqualRect(), InflateRect(), IntersectRect(), IsRectEmpty(), OffsetRect(), PtInRect(), SetRect(), SetRectEmpty(), SubtractRect(), and UnionRect().

Function Documentation

BOOL APIENTRY CopyInflateRect (  LPRECT  prcDst,
CONST RECT *  prcSrc,
int  cx,
int  cy
) 
 

Definition at line 52 of file rect.c.

References APIENTRY, BOOL, cy, and TRUE.

Referenced by DefFrameProcWorker(), FindNCHit(), MNItemHitTest(), SLScrollText(), xxxCalcCaptionButton(), xxxCBInternalUpdateEditWindow(), xxxHelpLoop(), xxxLBSize(), xxxMetricsRecalc(), and xxxPaintSwitchWindow(). 

00056 {
00057     prcDst->left   = prcSrc->left   - cx;
00058     prcDst->right  = prcSrc->right  + cx;
00059     prcDst->top    = prcSrc->top    - cy;
00060     prcDst->bottom = prcSrc->bottom + cy;
00061     return TRUE;
00062 }

BOOL APIENTRY CopyOffsetRect (  LPRECT  prcDst,
CONST RECT *  prcSrc,
int  cx,
int  cy
) 
 

Definition at line 73 of file rect.c.

References APIENTRY, BOOL, cy, and TRUE.

Referenced by NormalizeRect(), PreventInterMonitorBlts(), TooltipRender(), xxxMNOpenHierarchy(), xxxMS_TrackMove(), and xxxScrollWindowEx(). 

00077 {
00078     prcDst->left   = prcSrc->left   + cx;
00079     prcDst->right  = prcSrc->right  + cx;
00080     prcDst->top    = prcSrc->top    + cy;
00081     prcDst->bottom = prcSrc->bottom + cy;
00082     return TRUE;
00083 }

BOOL APIENTRY CopyRect (  LPRECT  prcDst,
CONST RECT *  prcSrc
) 
 

Definition at line 404 of file rect.c.

References APIENTRY, BOOL, FALSE, TRUE, and VALIDATERECT. 

00407 {
00408     VALIDATERECT(prcDst, FALSE);
00409     VALIDATERECT(prcSrc, FALSE);
00410 
00411     *prcDst = *prcSrc;
00412     return TRUE;
00413 }

BOOL APIENTRY EqualRect (  CONST RECT *  prc1,
CONST RECT *  prc2
) 
 

Definition at line 295 of file rect.c.

References APIENTRY, BOOL, FALSE, and VALIDATERECT. 

00298 {
00299     VALIDATERECT(prc1, FALSE);
00300     VALIDATERECT(prc2, FALSE);
00301 
00302     /*
00303      * Test equality only. This is what win31 does. win31 does not check to
00304      * see if the rectangles are "empty" first.
00305      */
00306     return RtlEqualMemory(prc1, prc2, sizeof(RECT));
00307 }

BOOL APIENTRY InflateRect (  LPRECT  prc,
int  cx,
int  cy
) 
 

Definition at line 165 of file rect.c.

References APIENTRY, BOOL, cy, FALSE, TRUE, and VALIDATERECT.

Referenced by _AdjustWindowRectEx(), BNCalcRect(), BNMultiExtent(), ECInvalidateClient(), ECSetEditClip(), ECSize(), EndTaskDlgProc(), FindNCHit(), MLPaint(), MNDrawFullNC(), msProfMove(), msProfSize(), NormalizeRect(), SetEndTaskDlgStatus(), SLDrawLine(), xxxBNDrawText(), xxxCalcCaptionButton(), xxxCalcClientRect(), xxxCBCreateHandler(), xxxCBInternalUpdateEditWindow(), xxxDrawButton(), xxxDrawCaptionBar(), xxxDrawWindowFrame(), xxxGetTitleBarInfo(), xxxHandleMenuMessages(), xxxInitSendValidateMinMaxInfo(), xxxIsDragging(), xxxMenuWindowProc(), xxxMetricsRecalc(), xxxPaintSwitchWindow(), and xxxPressButton(). 

00169 {
00170     VALIDATERECT(prc, FALSE);
00171 
00172     prc->left   -= cx;
00173     prc->right  += cx;
00174     prc->top    -= cy;
00175     prc->bottom += cy;
00176     return TRUE;
00177 }

BOOL APIENTRY IntersectRect (  LPRECT  prcDst,
CONST RECT *  prcSrc1,
CONST RECT *  prcSrc2
) 
 

Definition at line 191 of file rect.c.

References APIENTRY, BOOL, FALSE, max, min, SetRectEmpty, TRUE, and VALIDATERECT.

Referenced by _MonitorFromRect(), AddNextContiguousRectangle(), CalcWindowVisRgn(), CreateSpb(), ECSetEditClip(), FBitsTouch(), FindBestPos(), FindOldMonitor(), FixBogusSWP(), GetWallpaperCenterRect(), InternalInvalidate2(), InternalScrollDC(), IntersectWithParents(), MLScroll(), MLSetCaretPosition(), MoveRect(), OffsetChildren(), ParkIcon(), PixieHack(), PreventInterMonitorBlts(), RemoveOverlaps(), SaveScreen(), SmartRectInRegion(), SpbCheckDce(), SubtractRect(), TryRect(), UT_GetParentDCClipBox(), xxxDrawDragRect(), xxxEnumDisplayMonitors(), xxxGetUpdateRect(), xxxInternalInvalidate(), xxxLBPaint(), xxxMNOpenHierarchy(), xxxMoveSize(), xxxRedrawHungWindow(), xxxScrollWindowEx(), xxxSnapWindow(), xxxSystemParametersInfo(), and zzzChangeStates(). 

00196 {
00197     VALIDATERECT(prcDst, FALSE);
00198     VALIDATERECT(prcSrc1, FALSE);
00199     VALIDATERECT(prcSrc2, FALSE);
00200 
00201     prcDst->left  = max(prcSrc1->left, prcSrc2->left);
00202     prcDst->right = min(prcSrc1->right, prcSrc2->right);
00203 
00204     /*
00205      * check for empty rect
00206      */
00207     if (prcDst->left < prcDst->right) {
00208 
00209         prcDst->top = max(prcSrc1->top, prcSrc2->top);
00210         prcDst->bottom = min(prcSrc1->bottom, prcSrc2->bottom);
00211 
00212         /*
00213          * check for empty rect
00214          */
00215         if (prcDst->top < prcDst->bottom) {
00216             return TRUE;        // not empty
00217         }
00218     }
00219 
00220     /*
00221      * empty rect
00222      */
00223     SetRectEmpty(prcDst);
00224 
00225     return FALSE;
00226 }

BOOL APIENTRY IsRectEmpty (  CONST RECT *  prc  ) 
 

Definition at line 101 of file rect.c.

References APIENTRY, BOOL, TRUE, and VALIDATERECT.

Referenced by _MonitorFromRect(), DrawDiagonalLine(), InvertScrollHilite(), PreventInterMonitorBlts(), xxxDWP_Paint(), xxxMinimizeHungWindow(), xxxMinMaximize(), xxxSetWindowPos(), and zzzClipCursor(). 

00103 {
00104     VALIDATERECT(prc, TRUE);
00105 
00106     return ((prc->left >= prc->right) || (prc->top >= prc->bottom));
00107 }

BOOL APIENTRY OffsetRect (  LPRECT  prc,
int  cx,
int  cy
) 
 

Definition at line 139 of file rect.c.

References APIENTRY, BOOL, cy, FALSE, TRUE, and VALIDATERECT.

Referenced by _GetClientRect(), _GetScrollBarInfo(), _GetWindowPlacement(), _ScrollDC(), _UserSoundSentryWorker(), AddNextContiguousRectangle(), AlignRects(), CalcClientScrolling(), CenterRectangles(), GetMonitorDC(), GetRect(), InternalCreateDialog(), MNPositionSysMenu(), MoveRect(), NormalizeRect(), OffsetChildren(), CProfilePropertySheet::OnInit(), RemoveOverlap(), RepositionRect(), ResetOrg(), SetEndTaskDlgStatus(), SpbCheckDce(), xxxCalcValidRects(), xxxEnumDisplayMonitors(), xxxGetMenuItemRect(), xxxGetUpdateRect(), xxxGetUpdateRgn(), xxxInternalPaintDesktop(), xxxMetricsRecalc(), xxxMNFindWindowFromPoint(), xxxMS_TrackMove(), xxxRedrawHungWindow(), xxxScrollWindowEx(), xxxSetInternalWindowPos(), and xxxSetWindowPlacement(). 

00143 {
00144     VALIDATERECT(prc, FALSE);
00145 
00146     prc->left   += cx;
00147     prc->right  += cx;
00148     prc->bottom += cy;
00149     prc->top    += cy;
00150     return TRUE;
00151 }

BOOL APIENTRY PtInRect (  CONST RECT *  prc,
POINT  pt
) 
 

Definition at line 118 of file rect.c.

References APIENTRY, BOOL, FALSE, and VALIDATERECT.

Referenced by _ChildWindowFromPointEx(), _MonitorFromPoint(), _RealChildWindowFromPoint(), ButtonWndProcWorker(), ClipPointToDesktop(), ComboBoxWndProcWorker(), EditWndProc(), EnumPwndDlgChildProc(), FindNCHit(), ISelFromPt(), MNItemHitTest(), ReaderWndProc(), RemoveOverlap(), ScrollIfNecessary(), SpeedHitTest(), xxxEndScroll(), xxxHandleMenuMessages(), xxxHelpLoop(), xxxIsDragging(), xxxMenuWindowProc(), xxxMNFindWindowFromPoint(), xxxMS_TrackMove(), xxxQueryDropObject(), xxxScanSysQueue(), xxxSystemTimerProc(), xxxTrackBox(), xxxTrackCaptionButton(), xxxTrackInitSize(), xxxTrackMouse(), xxxTrackThumb(), xxxWindowHitTest2(), zzzActiveCursorTracking(), and zzzClipCursor(). 

00121 {
00122     VALIDATERECT(prc, FALSE);
00123 
00124     return ((pt.x >= prc->left) && (pt.x < prc->right) &&
00125             (pt.y >= prc->top)  && (pt.y < prc->bottom));
00126 }

void RECTFromSIZERECT (  PRECT  prc,
PCSIZERECT  psrc
) 
 

Definition at line 448 of file rect.c.

References tagSIZERECT::cx, tagSIZERECT::cy, PCSIZERECT, tagSIZERECT::x, and tagSIZERECT::y.

Referenced by xxxCheckFullScreen(), and xxxCreateWindowEx(). 

00449 {
00450     prc->left = psrc->x;
00451     prc->top = psrc->y;
00452     prc->right = psrc->x + psrc->cx;
00453     prc->bottom = psrc->y + psrc->cy;
00454 }

BOOL APIENTRY SetRect (  LPRECT  prc,
int  left,
int  top,
int  right,
int  bottom
) 
 

Definition at line 27 of file rect.c.

References APIENTRY, BOOL, FALSE, TRUE, and VALIDATERECT.

Referenced by FindBestPos(), ResetMouseHover(), UserLpkPSMTextOut(), xxxPSMTextOut(), and xxxScrollWindowEx(). 

00033 {
00034     VALIDATERECT(prc, FALSE);
00035 
00036     prc->left = left;
00037     prc->top = top;
00038     prc->right = right;
00039     prc->bottom = bottom;
00040     return TRUE;
00041 }

BOOL APIENTRY SetRectEmpty (  LPRECT  prc  ) 
 

Definition at line 427 of file rect.c.

References APIENTRY, BOOL, FALSE, TRUE, and VALIDATERECT. 

00429 {
00430     VALIDATERECT(prc, FALSE);
00431 
00432     RtlZeroMemory(prc, sizeof(RECT));
00433     return TRUE;
00434 }

void SIZERECTFromRECT (  PSIZERECT  psrc,
LPCRECT  prc
) 
 

Definition at line 467 of file rect.c.

References tagSIZERECT::cx, tagSIZERECT::cy, PSIZERECT, tagSIZERECT::x, and tagSIZERECT::y. 

00468 {
00469     psrc->x = prc->left;
00470     psrc->y = prc->top;
00471     psrc->cx = prc->right - prc->left;
00472     psrc->cy = prc->bottom - prc->top;
00473 }

BOOL APIENTRY SubtractRect (  LPRECT  prcDst,
CONST RECT *  prcSrc1,
CONST RECT *  prcSrc2
) 
 

Definition at line 327 of file rect.c.

References APIENTRY, BOOL, FALSE, IntersectRect(), SetRectEmpty, TRUE, and VALIDATERECT.

Referenced by CreateSpb(), FBitsTouch(), InternalScrollDC(), and xxxInvalidateDesktopOnPaletteChange(). 

00331 {
00332     int cSidesOut;
00333     BOOL fIntersect;
00334     RECT rcInt;
00335 
00336     VALIDATERECT(prcDst, FALSE);
00337     VALIDATERECT(prcSrc1, FALSE);
00338     VALIDATERECT(prcSrc2, FALSE);
00339 
00340     fIntersect = IntersectRect(&rcInt, prcSrc1, prcSrc2);
00341 
00342     /*
00343      * this is done after the intersection in case prcDst is the same
00344      * pointer as prcSrc2
00345      */
00346     *prcDst = *prcSrc1;
00347 
00348     if (fIntersect) {
00349         /*
00350          * exactly any 3 sides of prc2 must be outside prc1 to subtract
00351          */
00352         cSidesOut = 0;
00353         if (rcInt.left   <= prcSrc1->left)
00354             cSidesOut++;
00355         if (rcInt.top    <= prcSrc1->top)
00356             cSidesOut++;
00357         if (rcInt.right  >= prcSrc1->right)
00358             cSidesOut++;
00359         if (rcInt.bottom >= prcSrc1->bottom)
00360             cSidesOut++;
00361 
00362         if (cSidesOut == 4) {
00363             /*
00364              * result is the empty rect
00365              */
00366              SetRectEmpty(prcDst);
00367              return FALSE;
00368         }
00369 
00370         if (cSidesOut == 3) {
00371             /*
00372              * subtract the intersecting rect
00373              */
00374             if (rcInt.left > prcSrc1->left)
00375                 prcDst->right = rcInt.left;
00376 
00377             else if (rcInt.right < prcSrc1->right)
00378                 prcDst->left = rcInt.right;
00379 
00380             else if (rcInt.top > prcSrc1->top)
00381                 prcDst->bottom = rcInt.top;
00382 
00383             else if (rcInt.bottom < prcSrc1->bottom)
00384                 prcDst->top = rcInt.bottom;
00385         }
00386     }
00387 
00388     if ((prcDst->left >= prcDst->right) || (prcDst->top >= prcDst->bottom))
00389         return FALSE;
00390 
00391     return TRUE;
00392 }

BOOL APIENTRY UnionRect (  LPRECT  prcDst,
CONST RECT *  prcSrc1,
CONST RECT *  prcSrc2
) 
 

Definition at line 241 of file rect.c.

References APIENTRY, BOOL, FALSE, max, min, SetRectEmpty, TRUE, and VALIDATERECT.

Referenced by _ScrollDC(), CalcClientScrolling(), CenterRectangles(), InternalScrollDC(), MLScroll(), SmoothScrollWindowEx(), and xxxScrollWindowEx(). 

00245 {
00246     BOOL frc1Empty, frc2Empty;
00247 
00248     VALIDATERECT(prcDst, FALSE);
00249     VALIDATERECT(prcSrc1, FALSE);
00250     VALIDATERECT(prcSrc2, FALSE);
00251 
00252     frc1Empty = ((prcSrc1->left >= prcSrc1->right) ||
00253             (prcSrc1->top >= prcSrc1->bottom));
00254 
00255     frc2Empty = ((prcSrc2->left >= prcSrc2->right) ||
00256             (prcSrc2->top >= prcSrc2->bottom));
00257 
00258     if (frc1Empty && frc2Empty) {
00259         SetRectEmpty(prcDst);
00260         return FALSE;
00261     }
00262 
00263     if (frc1Empty) {
00264         *prcDst = *prcSrc2;
00265         return TRUE;
00266     }
00267 
00268     if (frc2Empty) {
00269         *prcDst = *prcSrc1;
00270         return TRUE;
00271     }
00272 
00273     /*
00274      * form the union of the two non-empty rects
00275      */
00276     prcDst->left   = min(prcSrc1->left,   prcSrc2->left);
00277     prcDst->top    = min(prcSrc1->top,    prcSrc2->top);
00278     prcDst->right  = max(prcSrc1->right,  prcSrc2->right);
00279     prcDst->bottom = max(prcSrc1->bottom, prcSrc2->bottom);
00280 
00281     return TRUE;
00282 }

Generated on Sat May 15 19:45:27 2004 for test by doxygen 1.3.7