calcclrc.c File Reference

#include "precomp.h"

Go to the source code of this file.

Functions
void	xxxCalcClientRect (PWND pwnd, LPRECT lprc, BOOL fHungRedraw)
void	xxxUpdateClientRect (PWND pwnd)

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Function Documentation

void xxxCalcClientRect (  PWND  pwnd, LPRECT  lprc, BOOL  fHungRedraw )

Definition at line 21 of file calcclrc.c. References BOOL, BYTE, CheckLock, ClrWF, CopyRect, FALSE, FWINABLE, GetCaptionHeight(), GetWindowBorders(), InflateRect(), IsWinEventNotifyDeferredOK, LOBYTE, SetWF, tagWND::spmenu, TestWF, TestwndChild, ThreadLockAlways, ThreadUnlock, TRUE, WEF_USEPWNDTHREAD, WEFCLIENTEDGE, WEFLEFTSCROLL, WFBORDERMASK, WFCAPTION, WFCEPRESENT, WFCPRESENT, WFFRAMEPRESENTMASK, WFHPRESENT, WFHSCROLL, WFMINIMIZED, WFMPRESENT, WFVPRESENT, WFVSCROLL, WFWIN40COMPAT, xxxMenuBarCompute(), and xxxWindowEvent(). Referenced by xxxDefWindowProc(), xxxRedrawHungWindow(), and xxxUpdateClientRect(). { int cxFrame, yTopOld; RECT rcTemp; PMENU pMenu; TL tlpmenu; int cBorders; BOOL fEmptyClient; BYTE bFramePresent; CheckLock(pwnd); UserAssert(IsWinEventNotifyDeferredOK()); bFramePresent = TestWF(pwnd, WFFRAMEPRESENTMASK); /* * Clear all the frame bits. NOTE: The HIBYTE of all these #defines * must stay the same for this line to work. */ ClrWF(pwnd, WFFRAMEPRESENTMASK); // // We need to clear the client border bits also. Otherwise, when the // window gets really small, the client border will draw over the menu // and caption. // ClrWF(pwnd, WFCEPRESENT); /* * If the window is iconic, the client area is empty. */ if (TestWF(pwnd, WFMINIMIZED)) { // SetRectEmpty(lprc); // We must make it an empty rectangle. // But, that empty rectangle should be at the top left corner of the // window rect. Else, ScreenToClient() will return bad values. lprc->right = lprc->left; lprc->bottom = lprc->top; goto CalcClientDone; } // Save rect into rcTemp for easy local calculations. CopyRect(&rcTemp, lprc); // Save the top so we'll know how tall the caption was yTopOld = rcTemp.top; // Adjustment for the caption if (TestWF(pwnd, WFBORDERMASK) == LOBYTE(WFCAPTION)) { SetWF(pwnd, WFCPRESENT); rcTemp.top += GetCaptionHeight(pwnd); } // Subtract out window borders cBorders = GetWindowBorders(pwnd->style, pwnd->ExStyle, TRUE, FALSE); cxFrame = cBorders * SYSMETFROMPROCESS(CXBORDER); InflateRect(&rcTemp, -cxFrame, -cBorders * SYSMETFROMPROCESS(CYBORDER)); if (!TestwndChild(pwnd) && (pMenu = pwnd->spmenu)) { SetWF(pwnd, WFMPRESENT); if (!fHungRedraw) { ThreadLockAlways(pMenu, &tlpmenu); rcTemp.top += xxxMenuBarCompute(pMenu, pwnd, rcTemp.top - yTopOld, cxFrame, rcTemp.right - rcTemp.left); ThreadUnlock(&tlpmenu); } } /* * We should have cleared WFMPRESENT in the else case here. Win9x doesn't do * it either. Any code checking this flag will do the wrong thing... * It seems that it's pretty unsual for apps to remove the menu.... * No code checking this flag can assume that pwnd->spmenu is not NULL -- we * would need to clear it way earlier (at unlock time) for such assumption to hold true. */ // // Fix for B#1425 -- Sizing window really small used to move children's // rects because the client calculations were wrong. So we make the // bottom of the client match up with the top (the bottom of the menu // bar). // fEmptyClient = FALSE; if (rcTemp.top >= rcTemp.bottom) { rcTemp.bottom = rcTemp.top; fEmptyClient = TRUE; } // // BOGUS BOGUS BOGUS // Hack for Central Point PC Tools. // Possibly for M5 only. // B#8445 // // They check for div-by-zero all over, but they jump to the wrong place // if a zero divisor is encountered, and end up faulting anyway. So this // code path was never tested basically. There's a period when starting // up where the window rect of their drives ribbon is empty. In Win3.x, // the client would be shrunk to account for the border it had, and it // would look like it wasn't empty because the width would be negative, // signed! So we version-switch this code, since other apps have // reported the non-emptiness as an annoying bug. // if (TestWF(pwnd, WFWIN40COMPAT) && (rcTemp.left >= rcTemp.right)) { rcTemp.right = rcTemp.left; fEmptyClient = TRUE; } if (fEmptyClient) goto ClientCalcEnd; // // Subtract client edge if we have space // if ( TestWF(pwnd, WEFCLIENTEDGE) && (rcTemp.right - rcTemp.left >= (2 * SYSMETFROMPROCESS(CXEDGE))) && (rcTemp.bottom - rcTemp.top >= (2 * SYSMETFROMPROCESS(CYEDGE))) ) { SetWF(pwnd, WFCEPRESENT); InflateRect(&rcTemp, -SYSMETFROMPROCESS(CXEDGE), -SYSMETFROMPROCESS(CYEDGE)); } // // Subtract scrollbars // Note compatibility with 3.1: // * You don't get a horizontal scrollbar unless you have MORE // space (> ) in your client than you need for one. // * You get a vertical scrollbar if you have AT LEAST ENOUGH // space (>=) in your client for one. // if (TestWF(pwnd, WFHSCROLL) && (rcTemp.bottom - rcTemp.top > SYSMETFROMPROCESS(CYHSCROLL))) { SetWF(pwnd, WFHPRESENT); if (!fHungRedraw) { rcTemp.bottom -= SYSMETFROMPROCESS(CYHSCROLL); } } if (TestWF(pwnd, WFVSCROLL) && (rcTemp.right - rcTemp.left >= SYSMETFROMPROCESS(CXVSCROLL))) { SetWF(pwnd, WFVPRESENT); if (!fHungRedraw) { #ifdef USE_MIRRORING if ((!!TestWF(pwnd, WEFLEFTSCROLL)) ^ (!!TestWF(pwnd, WEFLAYOUTRTL))) #else if (TestWF(pwnd, WEFLEFTSCROLL)) #endif rcTemp.left += SYSMETFROMPROCESS(CXVSCROLL); else rcTemp.right -= SYSMETFROMPROCESS(CXVSCROLL); } } ClientCalcEnd: CopyRect(lprc, &rcTemp); CalcClientDone: if (FWINABLE() && (bFramePresent != TestWF(pwnd, WFFRAMEPRESENTMASK))) { xxxWindowEvent(EVENT_OBJECT_REORDER, pwnd, OBJID_WINDOW, 0, WEF_USEPWNDTHREAD); } }

void xxxUpdateClientRect (  PWND  pwnd  )

Definition at line 194 of file calcclrc.c. References CopyRect, FALSE, tagWND::rcClient, tagWND::rcWindow, and xxxCalcClientRect(). { RECT rc; CopyRect(&rc, &pwnd->rcWindow); xxxCalcClientRect(pwnd, &rc, FALSE); CopyRect(&pwnd->rcClient, &rc); }

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