rebar.c

winNT技术操作系统,国外开放的原代码和LIUX一样

	    TRACE(" xHeader=%u", pB->cxHeader);
	if (pB->fMask & RBBIM_LPARAM)
	    TRACE(" lParam=0x%08lx", pB->lParam);
	TRACE("\n");
    }
    if (pB->fMask & RBBIM_CHILDSIZE)
	TRACE("band info: xMin=%u, yMin=%u, yChild=%u, yMax=%u, yIntgl=%u\n",
	      pB->cxMinChild,
	      pB->cyMinChild, pB->cyChild, pB->cyMaxChild, pB->cyIntegral);
}

static VOID
REBAR_DumpBand (REBAR_INFO *iP)
{
    REBAR_BAND *pB;
    UINT i;

    if(! TRACE_ON(rebar) ) return;

    TRACE("hwnd=%p: color=%08x/%08x, bands=%u, rows=%u, cSize=%d,%d\n",
	  iP->hwndSelf, iP->clrText, iP->clrBk, iP->uNumBands, iP->uNumRows,
	  iP->calcSize.cx, iP->calcSize.cy);
    TRACE("hwnd=%p: flags=%08x, dragStart=%d,%d, dragNow=%d,%d, iGrabbedBand=%d\n",
	  iP->hwndSelf, iP->fStatus, iP->dragStart.x, iP->dragStart.y,
	  iP->dragNow.x, iP->dragNow.y,
	  iP->iGrabbedBand);
    TRACE("hwnd=%p: style=%08x, notify in Unicode=%s, redraw=%s\n",
          iP->hwndSelf, iP->dwStyle, (iP->bUnicode)?"TRUE":"FALSE",
          (iP->DoRedraw)?"TRUE":"FALSE");
    for (i = 0; i < iP->uNumBands; i++) {
	pB = &iP->bands[i];
	TRACE("band # %u:", i);
	if (pB->fMask & RBBIM_ID)
	    TRACE(" ID=%u", pB->wID);
	if (pB->fMask & RBBIM_CHILD)
	    TRACE(" child=%p", pB->hwndChild);
	if (pB->fMask & RBBIM_COLORS)
            TRACE(" clrF=0x%06x clrB=0x%06x", pB->clrFore, pB->clrBack);
	TRACE("\n");
	TRACE("band # %u: mask=0x%08x (%s)\n", i, pB->fMask, REBAR_FmtMask(pB->fMask));
	if (pB->fMask & RBBIM_STYLE)
	    TRACE("band # %u: style=0x%08x (%s)\n",
		  i, pB->fStyle, REBAR_FmtStyle(pB->fStyle));
	TRACE("band # %u: uMinH=%u xHeader=%u",
	      i, pB->uMinHeight, pB->cxHeader);
	if (pB->fMask & (RBBIM_SIZE | RBBIM_IDEALSIZE | RBBIM_LPARAM )) {
	    if (pB->fMask & RBBIM_SIZE)
		TRACE(" cx=%u", pB->cx);
	    if (pB->fMask & RBBIM_IDEALSIZE)
		TRACE(" xIdeal=%u", pB->cxIdeal);
	    if (pB->fMask & RBBIM_LPARAM)
		TRACE(" lParam=0x%08lx", pB->lParam);
	}
	TRACE("\n");
	if (RBBIM_CHILDSIZE)
	    TRACE("band # %u: xMin=%u, yMin=%u, yChild=%u, yMax=%u, yIntgl=%u\n",
		  i, pB->cxMinChild, pB->cyMinChild, pB->cyChild, pB->cyMaxChild, pB->cyIntegral);
	if (pB->fMask & RBBIM_TEXT)
	    TRACE("band # %u: text=%s\n",
		  i, (pB->lpText) ? debugstr_w(pB->lpText) : "(null)");
	TRACE("band # %u: lcx=%u, ccx=%u, hcx=%u, lcy=%u, ccy=%u, hcy=%u, offChild=%d,%d\n",
	      i, pB->lcx, pB->ccx, pB->hcx, pB->lcy, pB->ccy, pB->hcy, pB->offChild.cx, pB->offChild.cy);
	TRACE("band # %u: fStatus=%08x, fDraw=%08x, Band=(%d,%d)-(%d,%d), Grip=(%d,%d)-(%d,%d)\n",
	      i, pB->fStatus, pB->fDraw,
	      pB->rcBand.left, pB->rcBand.top, pB->rcBand.right, pB->rcBand.bottom,
	      pB->rcGripper.left, pB->rcGripper.top, pB->rcGripper.right, pB->rcGripper.bottom);
	TRACE("band # %u: Img=(%d,%d)-(%d,%d), Txt=(%d,%d)-(%d,%d), Child=(%d,%d)-(%d,%d)\n",
	      i,
	      pB->rcCapImage.left, pB->rcCapImage.top, pB->rcCapImage.right, pB->rcCapImage.bottom,
	      pB->rcCapText.left, pB->rcCapText.top, pB->rcCapText.right, pB->rcCapText.bottom,
	      pB->rcChild.left, pB->rcChild.top, pB->rcChild.right, pB->rcChild.bottom);
    }

}

static void
REBAR_DrawChevron (HDC hdc, INT left, INT top, INT colorRef)
{
    INT x, y;
    HPEN hPen, hOldPen;

    if (!(hPen = CreatePen( PS_SOLID, 1, GetSysColor( colorRef )))) return;
    hOldPen = SelectObject ( hdc, hPen );
    x = left + 2;
    y = top;
    MoveToEx (hdc, x, y, NULL);
    LineTo (hdc, x+5, y++); x++;
    MoveToEx (hdc, x, y, NULL);
    LineTo (hdc, x+3, y++); x++;
    MoveToEx (hdc, x, y, NULL);
    LineTo (hdc, x+1, y++);
    SelectObject( hdc, hOldPen );
    DeleteObject( hPen );
}

static HWND
REBAR_GetNotifyParent (REBAR_INFO *infoPtr)
{
    HWND parent, owner;

    parent = infoPtr->hwndNotify;
    if (!parent) {
        parent = GetParent (infoPtr->hwndSelf);
	owner = GetWindow (infoPtr->hwndSelf, GW_OWNER);
	if (owner) parent = owner;
    }
    return parent;
}


static INT
REBAR_Notify (NMHDR *nmhdr, REBAR_INFO *infoPtr, UINT code)
{
    HWND parent;

    parent = REBAR_GetNotifyParent (infoPtr);
    nmhdr->idFrom = GetDlgCtrlID (infoPtr->hwndSelf);
    nmhdr->hwndFrom = infoPtr->hwndSelf;
    nmhdr->code = code;

    TRACE("window %p, code=%08x, via %s\n", parent, code, (infoPtr->bUnicode)?"Unicode":"ANSI");

    return SendMessageW(parent, WM_NOTIFY, (WPARAM)nmhdr->idFrom, (LPARAM)nmhdr);
}

static INT
REBAR_Notify_NMREBAR (REBAR_INFO *infoPtr, UINT uBand, UINT code)
{
    NMREBAR notify_rebar;
    REBAR_BAND *lpBand;

    notify_rebar.dwMask = 0;
    if (uBand!=-1) {
	lpBand = &infoPtr->bands[uBand];
	if (lpBand->fMask & RBBIM_ID) {
	    notify_rebar.dwMask |= RBNM_ID;
	    notify_rebar.wID = lpBand->wID;
	}
	if (lpBand->fMask & RBBIM_LPARAM) {
	    notify_rebar.dwMask |= RBNM_LPARAM;
	    notify_rebar.lParam = lpBand->lParam;
	}
	if (lpBand->fMask & RBBIM_STYLE) {
	    notify_rebar.dwMask |= RBNM_STYLE;
	    notify_rebar.fStyle = lpBand->fStyle;
	}
    }
    notify_rebar.uBand = uBand;
    return REBAR_Notify ((NMHDR *)&notify_rebar, infoPtr, code);
}

static VOID
REBAR_DrawBand (HDC hdc, REBAR_INFO *infoPtr, REBAR_BAND *lpBand)
{
    HFONT hOldFont = 0;
    INT oldBkMode = 0;
    NMCUSTOMDRAW nmcd;
    HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);

    if (lpBand->fDraw & DRAW_TEXT) {
	hOldFont = SelectObject (hdc, infoPtr->hFont);
	oldBkMode = SetBkMode (hdc, TRANSPARENT);
    }

    /* should test for CDRF_NOTIFYITEMDRAW here */
    nmcd.dwDrawStage = CDDS_ITEMPREPAINT;
    nmcd.hdc = hdc;
    nmcd.rc = lpBand->rcBand;
    nmcd.rc.right = lpBand->rcCapText.right;
    nmcd.rc.bottom = lpBand->rcCapText.bottom;
    nmcd.dwItemSpec = lpBand->wID;
    nmcd.uItemState = 0;
    nmcd.lItemlParam = lpBand->lParam;
    lpBand->uCDret = REBAR_Notify ((NMHDR *)&nmcd, infoPtr, NM_CUSTOMDRAW);
    if (lpBand->uCDret == CDRF_SKIPDEFAULT) {
	if (oldBkMode != TRANSPARENT)
	    SetBkMode (hdc, oldBkMode);
	SelectObject (hdc, hOldFont);
	return;
    }

    /* draw gripper */
    if (lpBand->fDraw & DRAW_GRIPPER)
    {
        if (theme)
        {
            RECT rcGripper = lpBand->rcGripper;
            int partId = (infoPtr->dwStyle & CCS_VERT) ? RP_GRIPPERVERT : RP_GRIPPER;
            GetThemeBackgroundExtent (theme, hdc, partId, 0, &rcGripper, &rcGripper);
            OffsetRect (&rcGripper, lpBand->rcGripper.left - rcGripper.left,
                lpBand->rcGripper.top - rcGripper.top);
            DrawThemeBackground (theme, hdc, partId, 0, &rcGripper, NULL);
        }
        else
            DrawEdge (hdc, &lpBand->rcGripper, BDR_RAISEDINNER, BF_RECT | BF_MIDDLE);
    }

    /* draw caption image */
    if (lpBand->fDraw & DRAW_IMAGE) {
	POINT pt;

	/* center image */
	pt.y = (lpBand->rcCapImage.bottom + lpBand->rcCapImage.top - infoPtr->imageSize.cy)/2;
	pt.x = (lpBand->rcCapImage.right + lpBand->rcCapImage.left - infoPtr->imageSize.cx)/2;

	ImageList_Draw (infoPtr->himl, lpBand->iImage, hdc,
			pt.x, pt.y,
			ILD_TRANSPARENT);
    }

    /* draw caption text */
    if (lpBand->fDraw & DRAW_TEXT) {
	/* need to handle CDRF_NEWFONT here */
	INT oldBkMode = SetBkMode (hdc, TRANSPARENT);
	COLORREF oldcolor = CLR_NONE;
	COLORREF new;
	if (lpBand->clrFore != CLR_NONE) {
	    new = (lpBand->clrFore == CLR_DEFAULT) ? infoPtr->clrBtnText :
		    lpBand->clrFore;
	    oldcolor = SetTextColor (hdc, new);
	}
	DrawTextW (hdc, lpBand->lpText, -1, &lpBand->rcCapText,
		   DT_CENTER | DT_VCENTER | DT_SINGLELINE);
	if (oldBkMode != TRANSPARENT)
	    SetBkMode (hdc, oldBkMode);
	if (lpBand->clrFore != CLR_NONE)
	    SetTextColor (hdc, oldcolor);
	SelectObject (hdc, hOldFont);
    }

    if (!IsRectEmpty(&lpBand->rcChevron))
    {
        if (theme)
        {
            int stateId; 
            if (lpBand->fDraw & DRAW_CHEVRONPUSHED)
                stateId = CHEVS_PRESSED;
            else if (lpBand->fDraw & DRAW_CHEVRONHOT)
                stateId = CHEVS_HOT;
            else
                stateId = CHEVS_NORMAL;
            DrawThemeBackground (theme, hdc, RP_CHEVRON, stateId, &lpBand->rcChevron, NULL);
        }
        else
        {
            if (lpBand->fDraw & DRAW_CHEVRONPUSHED)
            {
                DrawEdge(hdc, &lpBand->rcChevron, BDR_SUNKENOUTER, BF_RECT | BF_MIDDLE);
                REBAR_DrawChevron(hdc, lpBand->rcChevron.left+1, lpBand->rcChevron.top + 11, COLOR_WINDOWFRAME);
            }
            else if (lpBand->fDraw & DRAW_CHEVRONHOT)
            {
                DrawEdge(hdc, &lpBand->rcChevron, BDR_RAISEDINNER, BF_RECT | BF_MIDDLE);
                REBAR_DrawChevron(hdc, lpBand->rcChevron.left, lpBand->rcChevron.top + 10, COLOR_WINDOWFRAME);
            }
            else
                REBAR_DrawChevron(hdc, lpBand->rcChevron.left, lpBand->rcChevron.top + 10, COLOR_WINDOWFRAME);
        }
    }

    if (lpBand->uCDret == (CDRF_NOTIFYPOSTPAINT | CDRF_NOTIFYITEMDRAW)) {
	nmcd.dwDrawStage = CDDS_ITEMPOSTPAINT;
	nmcd.hdc = hdc;
	nmcd.rc = lpBand->rcBand;
	nmcd.rc.right = lpBand->rcCapText.right;
	nmcd.rc.bottom = lpBand->rcCapText.bottom;
	nmcd.dwItemSpec = lpBand->wID;
	nmcd.uItemState = 0;
	nmcd.lItemlParam = lpBand->lParam;
	lpBand->uCDret = REBAR_Notify ((NMHDR *)&nmcd, infoPtr, NM_CUSTOMDRAW);
    }
}


static VOID
REBAR_Refresh (REBAR_INFO *infoPtr, HDC hdc)
{
    REBAR_BAND *lpBand;
    UINT i;

    if (!infoPtr->DoRedraw) return;

    for (i = 0; i < infoPtr->uNumBands; i++) {
	lpBand = &infoPtr->bands[i];

	if (HIDDENBAND(lpBand)) continue;

	/* now draw the band */
	TRACE("[%p] drawing band %i, flags=%08x\n",
	      infoPtr->hwndSelf, i, lpBand->fDraw);
	REBAR_DrawBand (hdc, infoPtr, lpBand);

    }
}


static void
REBAR_FixVert (REBAR_INFO *infoPtr, UINT rowstart, UINT rowend,
		   INT mcy)
     /* Function:                                                    */
     /*   Cycle through bands in row and fix height of each band.    */
     /*   Also determine whether each band has changed.              */
     /* On entry:                                                    */
     /*   all bands at desired size.                                 */
     /*   start and end bands are *not* hidden                       */
{
    REBAR_BAND *lpBand;
    INT i;

    for (i = (INT)rowstart; i<=(INT)rowend; i++) {
        lpBand = &infoPtr->bands[i];
	if (HIDDENBAND(lpBand)) continue;

	/* adjust height of bands in row to "mcy" value */
	if (infoPtr->dwStyle & CCS_VERT) {
	    if (lpBand->rcBand.right != lpBand->rcBand.left + mcy)
	        lpBand->rcBand.right = lpBand->rcBand.left + mcy;
	}
	else {
	    if (lpBand->rcBand.bottom != lpBand->rcBand.top + mcy)
	        lpBand->rcBand.bottom = lpBand->rcBand.top + mcy;

	}

	/* mark whether we need to invalidate this band and trace */
	if ((lpBand->rcoldBand.left !=lpBand->rcBand.left) ||
	    (lpBand->rcoldBand.top !=lpBand->rcBand.top) ||
	    (lpBand->rcoldBand.right !=lpBand->rcBand.right) ||
	    (lpBand->rcoldBand.bottom !=lpBand->rcBand.bottom)) {
	    lpBand->fDraw |= NTF_INVALIDATE;
            TRACE("band %d row=%d: changed to (%d,%d)-(%d,%d) from (%d,%d)-(%d,%d)\n",
		  i, lpBand->iRow,
		  lpBand->rcBand.left, lpBand->rcBand.top,
		  lpBand->rcBand.right, lpBand->rcBand.bottom,
		  lpBand->rcoldBand.left, lpBand->rcoldBand.top,
		  lpBand->rcoldBand.right, lpBand->rcoldBand.bottom);
	}
	else
            TRACE("band %d row=%d: unchanged (%d,%d)-(%d,%d)\n",
		  i, lpBand->iRow,
		  lpBand->rcBand.left, lpBand->rcBand.top,
		  lpBand->rcBand.right, lpBand->rcBand.bottom);
    }
}


static void
REBAR_AdjustBands (REBAR_INFO *infoPtr, UINT rowstart, UINT rowend,
		   INT maxx, INT mcy)
     /* Function: This routine distributes the extra space in a row. */
     /*  See algorithm below.                                        */
     /* On entry:                                                    */
     /*   all bands @ ->cxHeader size                                */
     /*   start and end bands are *not* hidden                       */
{
    REBAR_BAND *lpBand;
    UINT xsep, extra, curwidth, fudge;
    INT x, i, last_adjusted;

    TRACE("start=%u, end=%u, max x=%d, max y=%d\n",
	  rowstart, rowend, maxx, mcy);

    /* *******************  Phase 1  ************************ */
    /* Alg:                                                   */
    /*  For each visible band with valid child                */
    /*      a. inflate band till either all extra space used  */
    /*         or band's ->ccx reached.                       */
    /*  If any band modified, add any space left to last band */
    /*  adjusted.                                             */
    /*                                                        */
    /* ****************************************************** */
    lpBand = &infoPtr->bands[rowend];
    extra = maxx - rcBrb(lpBand);
    x = 0;
    last_adjusted = -1;
    for (i=(INT)rowstart; i<=(INT)rowend; i++) {
	lpBand = &infoPtr->bands[i];
	if (HIDDENBAND(lpBand)) continue;
	xsep = (x == 0) ? 0 : SEP_WIDTH;
	curwidth = rcBw(lpBand);

	/* set new left/top point */
	if (infoPtr->dwStyle & CCS_VERT)
	    lpBand->rcBand.top = x + xsep;
	else