rebar.c

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

    {
	if (lprbbi->hwndChild) {
	    lpBand->hwndChild = lprbbi->hwndChild;
	    lpBand->hwndPrevParent =
		SetParent (lpBand->hwndChild, hwnd);
	    /* below in trace from WinRAR */
	    ShowWindow(lpBand->hwndChild, SW_SHOWNOACTIVATE | SW_SHOWNORMAL);
	    /* above in trace from WinRAR */
	}
	else {
	    TRACE("child: %p  prev parent: %p\n",
		   lpBand->hwndChild, lpBand->hwndPrevParent);
	    lpBand->hwndChild = 0;
	    lpBand->hwndPrevParent = 0;
	}
        bChanged = TRUE;
    }

    if( (lprbbi->fMask & RBBIM_CHILDSIZE) &&
        ( (lpBand->cxMinChild != lprbbi->cxMinChild) ||
          (lpBand->cyMinChild != lprbbi->cyMinChild ) ||
          ( (lprbbi->cbSize >= sizeof (REBARBANDINFOA)) &&
            ( (lpBand->cyChild    != lprbbi->cyChild ) ||
              (lpBand->cyMaxChild != lprbbi->cyMaxChild ) ||
              (lpBand->cyIntegral != lprbbi->cyIntegral ) ) ) ||
          ( (lprbbi->cbSize < sizeof (REBARBANDINFOA)) &&
            ( (lpBand->cyChild || 
               lpBand->cyMaxChild || 
               lpBand->cyIntegral ) ) ) ) )
    {
	lpBand->cxMinChild = lprbbi->cxMinChild;
	lpBand->cyMinChild = lprbbi->cyMinChild;
        /* These fields where added in WIN32_IE == 0x400 and are set only for RBBS_VARIABLEHEIGHT bands */
        if (lprbbi->cbSize >= sizeof (REBARBANDINFOA) && (lpBand->fStyle & RBBS_VARIABLEHEIGHT)) {
	    lpBand->cyMaxChild = lprbbi->cyMaxChild;
            lpBand->cyIntegral = lprbbi->cyIntegral;

            lpBand->cyChild = lpBand->cyMinChild;
            round_child_height(lpBand, lprbbi->cyChild);  /* try to increase cyChild */
        }
	else {
	    lpBand->cyChild    = lpBand->cyMinChild;
	    lpBand->cyMaxChild = 0x7fffffff;
	    lpBand->cyIntegral = 0;
	}
        bChanged = TRUE;
    }

    if( (lprbbi->fMask & RBBIM_SIZE) &&
        (lpBand->cx != lprbbi->cx ) )
    {
	lpBand->cx = lprbbi->cx;
        bChanged = TRUE;
    }

    if( (lprbbi->fMask & RBBIM_BACKGROUND) &&
       ( lpBand->hbmBack != lprbbi->hbmBack ) )
    {
	lpBand->hbmBack = lprbbi->hbmBack;
        bChanged = TRUE;
    }

    if( (lprbbi->fMask & RBBIM_ID) &&
        (lpBand->wID != lprbbi->wID ) )
    {
	lpBand->wID = lprbbi->wID;
        bChanged = TRUE;
    }

    /* check for additional data */
    if (lprbbi->cbSize >= sizeof (REBARBANDINFOA)) {
	if( (lprbbi->fMask & RBBIM_IDEALSIZE) &&
            ( lpBand->cxIdeal != lprbbi->cxIdeal ) )
        {
	    lpBand->cxIdeal = lprbbi->cxIdeal;
            bChanged = TRUE;
        }

	if( (lprbbi->fMask & RBBIM_LPARAM) &&
            (lpBand->lParam != lprbbi->lParam ) )
        {
	    lpBand->lParam = lprbbi->lParam;
            bChanged = TRUE;
        }

	if( (lprbbi->fMask & RBBIM_HEADERSIZE) &&
            (lpBand->cxHeader != lprbbi->cxHeader ) )
        {
	    lpBand->cxHeader = lprbbi->cxHeader;
            lpBand->fStyle |= RBBS_UNDOC_FIXEDHEADER;
            bChanged = TRUE;
        }
    }

    return bChanged;
}

static LRESULT
REBAR_InternalEraseBkGnd (const REBAR_INFO *infoPtr, WPARAM wParam, LPARAM lParam, const RECT *clip)
     /* Function:  This erases the background rectangle by drawing  */
     /*  each band with its background color (or the default) and   */
     /*  draws each bands right separator if necessary. The row     */
     /*  separators are drawn on the first band of the next row.    */
{
    REBAR_BAND *lpBand;
    UINT i;
    INT oldrow;
    HDC hdc = (HDC)wParam;
    RECT cr;
    COLORREF old = CLR_NONE, new;
    HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);

    GetClientRect (infoPtr->hwndSelf, &cr);

    oldrow = -1;
    for(i=0; i<infoPtr->uNumBands; i++) {
        RECT rcBand;
        lpBand = &infoPtr->bands[i];
	if (HIDDENBAND(lpBand)) continue;
        translate_rect(infoPtr, &rcBand, &lpBand->rcBand);

	/* draw band separator between rows */
	if (lpBand->iRow != oldrow) {
	    oldrow = lpBand->iRow;
	    if (infoPtr->dwStyle & RBS_BANDBORDERS) {
		RECT rcRowSep;
		rcRowSep = rcBand;
		if (infoPtr->dwStyle & CCS_VERT) {
		    rcRowSep.right += SEP_WIDTH_SIZE;
		    rcRowSep.bottom = infoPtr->calcSize.cx;
                    if (theme)
                        DrawThemeEdge (theme, hdc, RP_BAND, 0, &rcRowSep, EDGE_ETCHED, BF_RIGHT, NULL);
                    else
		        DrawEdge (hdc, &rcRowSep, EDGE_ETCHED, BF_RIGHT);
		}
		else {
		    rcRowSep.bottom += SEP_WIDTH_SIZE;
		    rcRowSep.right = infoPtr->calcSize.cx;
                    if (theme)
                        DrawThemeEdge (theme, hdc, RP_BAND, 0, &rcRowSep, EDGE_ETCHED, BF_BOTTOM, NULL);
                    else
		        DrawEdge (hdc, &rcRowSep, EDGE_ETCHED, BF_BOTTOM);
		}
		TRACE ("drawing band separator bottom (%d,%d)-(%d,%d)\n",
		       rcRowSep.left, rcRowSep.top,
		       rcRowSep.right, rcRowSep.bottom);
	    }
	}

	/* draw band separator between bands in a row */
        if (infoPtr->dwStyle & RBS_BANDBORDERS && lpBand->rcBand.left > 0) {
	    RECT rcSep;
	    rcSep = rcBand;
	    if (infoPtr->dwStyle & CCS_VERT) {
                rcSep.bottom = rcSep.top;
		rcSep.top -= SEP_WIDTH_SIZE;
                if (theme)
                    DrawThemeEdge (theme, hdc, RP_BAND, 0, &rcSep, EDGE_ETCHED, BF_BOTTOM, NULL);
                else
		    DrawEdge (hdc, &rcSep, EDGE_ETCHED, BF_BOTTOM);
	    }
	    else {
                rcSep.right = rcSep.left;
		rcSep.left -= SEP_WIDTH_SIZE;
                if (theme)
                    DrawThemeEdge (theme, hdc, RP_BAND, 0, &rcSep, EDGE_ETCHED, BF_RIGHT, NULL);
                else
		    DrawEdge (hdc, &rcSep, EDGE_ETCHED, BF_RIGHT);
	    }
            TRACE("drawing band separator right (%d,%d)-(%d,%d)\n",
		  rcSep.left, rcSep.top, rcSep.right, rcSep.bottom);
	}

	/* draw the actual background */
	if (lpBand->clrBack != CLR_NONE) {
	    new = (lpBand->clrBack == CLR_DEFAULT) ? infoPtr->clrBtnFace :
		    lpBand->clrBack;
#if GLATESTING
	    /* testing only - make background green to see it */
	    new = RGB(0,128,0);
#endif
	}
	else {
	    /* In the absence of documentation for Rebar vs. CLR_NONE,
	     * we will use the default BtnFace color. Note documentation
	     * exists for Listview and Imagelist.
	     */
	    new = infoPtr->clrBtnFace;
#if GLATESTING
	    /* testing only - make background green to see it */
	    new = RGB(0,128,0);
#endif
	}

        if (theme)
        {
            /* When themed, the background color is ignored (but not a
             * background bitmap */
            DrawThemeBackground (theme, hdc, 0, 0, &cr, &rcBand);
        }
        else
        {
            old = SetBkColor (hdc, new);
            TRACE("%s background color=0x%06x, band (%d,%d)-(%d,%d), clip (%d,%d)-(%d,%d)\n",
                  (lpBand->clrBack == CLR_NONE) ? "none" :
                    ((lpBand->clrBack == CLR_DEFAULT) ? "dft" : ""),
                  GetBkColor(hdc),
                  rcBand.left,rcBand.top,
                  rcBand.right,rcBand.bottom,
                  clip->left, clip->top,
                  clip->right, clip->bottom);
            ExtTextOutW (hdc, 0, 0, ETO_OPAQUE, &rcBand, NULL, 0, 0);
            if (lpBand->clrBack != CLR_NONE)
                SetBkColor (hdc, old);
        }
    }
    return TRUE;
}

static void
REBAR_InternalHitTest (const REBAR_INFO *infoPtr, const POINT *lpPt, UINT *pFlags, INT *pBand)
{
    REBAR_BAND *lpBand;
    RECT rect;
    UINT  iCount;

    GetClientRect (infoPtr->hwndSelf, &rect);

    *pFlags = RBHT_NOWHERE;
    if (PtInRect (&rect, *lpPt))
    {
	if (infoPtr->uNumBands == 0) {
	    *pFlags = RBHT_NOWHERE;
	    if (pBand)
		*pBand = -1;
	    TRACE("NOWHERE\n");
	    return;
	}
	else {
	    /* somewhere inside */
	    for (iCount = 0; iCount < infoPtr->uNumBands; iCount++) {
                RECT rcBand;
		lpBand = &infoPtr->bands[iCount];
                translate_rect(infoPtr, &rcBand, &lpBand->rcBand);
                if (HIDDENBAND(lpBand)) continue;
		if (PtInRect (&rcBand, *lpPt)) {
		    if (pBand)
			*pBand = iCount;
		    if (PtInRect (&lpBand->rcGripper, *lpPt)) {
			*pFlags = RBHT_GRABBER;
			TRACE("ON GRABBER %d\n", iCount);
			return;
		    }
		    else if (PtInRect (&lpBand->rcCapImage, *lpPt)) {
			*pFlags = RBHT_CAPTION;
			TRACE("ON CAPTION %d\n", iCount);
			return;
		    }
		    else if (PtInRect (&lpBand->rcCapText, *lpPt)) {
			*pFlags = RBHT_CAPTION;
			TRACE("ON CAPTION %d\n", iCount);
			return;
		    }
		    else if (PtInRect (&lpBand->rcChild, *lpPt)) {
			*pFlags = RBHT_CLIENT;
			TRACE("ON CLIENT %d\n", iCount);
			return;
		    }
		    else if (PtInRect (&lpBand->rcChevron, *lpPt)) {
			*pFlags = RBHT_CHEVRON;
			TRACE("ON CHEVRON %d\n", iCount);
			return;
		    }
		    else {
			*pFlags = RBHT_NOWHERE;
			TRACE("NOWHERE %d\n", iCount);
			return;
		    }
		}
	    }

	    *pFlags = RBHT_NOWHERE;
	    if (pBand)
		*pBand = -1;

	    TRACE("NOWHERE\n");
	    return;
	}
    }
    else {
	*pFlags = RBHT_NOWHERE;
	if (pBand)
	    *pBand = -1;
	TRACE("NOWHERE\n");
	return;
    }
}

static void
REBAR_HandleLRDrag (REBAR_INFO *infoPtr, const POINT *ptsmove)
     /* Function:  This will implement the functionality of a     */
     /*  Gripper drag within a row. It will not implement "out-   */
     /*  of-row" drags. (They are detected and handled in         */
     /*  REBAR_MouseMove.)                                        */
     /*  **** FIXME Switching order of bands in a row not   ****  */
     /*  ****       yet implemented.                        ****  */
{
    REBAR_BAND *hitBand;
    INT iHitBand, iRowBegin, iRowEnd;
    INT movement, xBand;

    /* on first significant mouse movement, issue notify */
    if (!(infoPtr->fStatus & BEGIN_DRAG_ISSUED)) {
	if (REBAR_Notify_NMREBAR (infoPtr, -1, RBN_BEGINDRAG)) {
	    /* Notify returned TRUE - abort drag */
	    infoPtr->dragStart.x = 0;
	    infoPtr->dragStart.y = 0;
	    infoPtr->dragNow = infoPtr->dragStart;
	    infoPtr->iGrabbedBand = -1;
	    ReleaseCapture ();
	    return ;
	}
	infoPtr->fStatus |= BEGIN_DRAG_ISSUED;
    }

    iHitBand = infoPtr->iGrabbedBand;
    iRowBegin = get_row_begin_for_band(infoPtr, iHitBand);
    iRowEnd = get_row_end_for_band(infoPtr, iHitBand);
    hitBand = &infoPtr->bands[iHitBand];

    xBand = hitBand->rcBand.left;
    movement = (infoPtr->dwStyle&CCS_VERT ? ptsmove->y : ptsmove->x)
                    - (xBand + REBAR_PRE_GRIPPER - infoPtr->ihitoffset);

    if (movement < 0) {
        int cxLeft = REBAR_ShrinkBandsRTL(infoPtr, iRowBegin, iHitBand, -movement, TRUE);
        hitBand->cxEffective += -movement - cxLeft;
        hitBand->cx = hitBand->cxEffective;
    } else if (movement > 0) {
        int cxLeft = REBAR_ShrinkBandsLTR(infoPtr, iHitBand, iRowEnd, movement, TRUE);
        REBAR_BAND *lpPrev = &infoPtr->bands[prev_band(infoPtr, iHitBand)];
        lpPrev->cxEffective += movement - cxLeft;
        lpPrev->cx = lpPrev->cxEffective;
    }

    REBAR_SetRowRectsX(infoPtr, iRowBegin, iRowEnd);
    if (infoPtr->dwStyle & CCS_VERT)
        REBAR_CalcVertBand(infoPtr, 0, infoPtr->uNumBands);
    else
        REBAR_CalcHorzBand(infoPtr, 0, infoPtr->uNumBands);
    REBAR_MoveChildWindows(infoPtr, iRowBegin, iRowEnd);
}



/* << REBAR_BeginDrag >> */


static LRESULT
REBAR_DeleteBand (REBAR_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
{
    UINT uBand = (UINT)wParam;
    REBAR_BAND *lpBand;

    if (uBand >= infoPtr->uNumBands)
	return FALSE;

    TRACE("deleting band %u!\n", uBand);
    lpBand = &infoPtr->bands[uBand];
    REBAR_Notify_NMREBAR (infoPtr, uBand, RBN_DELETINGBAND);
    /* TODO: a return of 1 should probably cancel the deletion */

    if (lpBand->hwndChild)
        ShowWindow(lpBand->hwndChild, SW_HIDE);
    Free(lpBand->lpText);

    infoPtr->uNumBands--;
    memmove(&infoPtr->bands[uBand], &infoPtr->bands[uBand+1],
        (infoPtr->uNumBands - uBand) * sizeof(REBAR_BAND));
    infoPtr->bands = ReAlloc(infoPtr->bands, infoPtr->uNumBands * sizeof(REBAR_BAND));

    REBAR_Notify_NMREBAR (infoPtr, -1, RBN_D