rebar.c

winNT技术操作系统,国外开放的原代码和LIUX一样

	    }
	    else {
	        if (adjcy && (y+mcy > adjcy)) {
		    mcy = adjcy - y;
		    TRACE("P1 row %u limiting mcy=%d, adjcy=%d, y=%d\n",
			  i, mcy, adjcy, y);
		}
	    }
	}

	TRACE("P1 band %u, row %d, x=%d, y=%d, cxsep=%d, cx=%d\n",
	      i, row,
	      x, y, cxsep, cx);
	if (infoPtr->dwStyle & CCS_VERT) {
	    /* bound the bottom side if we have a bounding rectangle */
	    rightx = clientcx;
	    bottomy = (lpRect) ? min(clientcy, y+cxsep+cx) : y+cxsep+cx;
	    lpBand->rcBand.left   = x;
	    lpBand->rcBand.right  = x + min(mcy,
					    lpBand->lcy+REBARSPACE(lpBand));
	    lpBand->rcBand.top    = min(bottomy, y + cxsep);
	    lpBand->rcBand.bottom = bottomy;
	    lpBand->uMinHeight = lpBand->lcy;
	    y = bottomy;
	}
	else {
	    /* bound the right side if we have a bounding rectangle */
	    rightx = (lpRect) ? min(clientcx, x+cxsep+cx) : x+cxsep+cx;
	    bottomy = clientcy;
	    lpBand->rcBand.left   = min(rightx, x + cxsep);
	    lpBand->rcBand.right  = rightx;
	    lpBand->rcBand.top    = y;
	    lpBand->rcBand.bottom = y + min(mcy,
					    lpBand->lcy+REBARSPACE(lpBand));
	    lpBand->uMinHeight = lpBand->lcy;
	    x = rightx;
	}
	TRACE("P1 band %u, row %d, (%d,%d)-(%d,%d)\n",
	      i, row,
	      lpBand->rcBand.left, lpBand->rcBand.top,
	      lpBand->rcBand.right, lpBand->rcBand.bottom);
	prevBand = lpBand;
	cntonrow++;

    } /* for (i = 0; i < infoPtr->uNumBands... */

    if (infoPtr->dwStyle & CCS_VERT)
        x += mcy;
    else
        y += mcy;

    for (j = rowstart; j < infoPtr->uNumBands; j++) {
	lpBand = &infoPtr->bands[j];
	if (infoPtr->dwStyle & CCS_VERT) {
	    lpBand->rcBand.right  = lpBand->rcBand.left + mcy;
	}
	else {
	    lpBand->rcBand.bottom = lpBand->rcBand.top + mcy;
	}
    }

    if (infoPtr->uNumBands)
        infoPtr->uNumRows = row + 1;

    /* ******* End Phase 1 - all bands on row at minimum size ******* */


    /* ******* Start Phase 1a - Adjust heights for RBS_VARHEIGHT off ******* */

    mmcy = 0;
    if (!(infoPtr->dwStyle & RBS_VARHEIGHT)) {
	INT xy;

	/* get the max height of all bands */
	for (i=0; i<infoPtr->uNumBands; i++) {
	    lpBand = &infoPtr->bands[i];
	    if (HIDDENBAND(lpBand)) continue;
	    if (infoPtr->dwStyle & CCS_VERT)
		mmcy = max(mmcy, lpBand->rcBand.right - lpBand->rcBand.left);
	    else
		mmcy = max(mmcy, lpBand->rcBand.bottom - lpBand->rcBand.top);
	}

	/* now adjust all rectangles by using the height found above */
	xy = 0;
	row = 0;
	for (i=0; i<infoPtr->uNumBands; i++) {
	    lpBand = &infoPtr->bands[i];
	    if (HIDDENBAND(lpBand)) continue;
	    if (lpBand->iRow != row)
		xy += (mmcy + SEP_WIDTH);
	    if (infoPtr->dwStyle & CCS_VERT) {
		lpBand->rcBand.left = xy;
		lpBand->rcBand.right = xy + mmcy;
	    }
	    else {
		lpBand->rcBand.top = xy;
		lpBand->rcBand.bottom = xy + mmcy;
	    }
	}

	/* set the x/y values to the correct maximum */
	if (infoPtr->dwStyle & CCS_VERT)
	    x = xy + mmcy;
	else
	    y = xy + mmcy;
    }

    /* ******* End Phase 1a - Adjust heights for RBS_VARHEIGHT off ******* */


    /* ******* Start Phase 2 - split rows till adjustment height full ******* */

    /* assumes that the following variables contain:                 */
    /*   y/x       current height/width of all rows                  */
    /* adjcy/adjcx adjustment height/width or 0 (as small as possible) */
    if (lpRect && ((infoPtr->dwStyle & CCS_VERT) ? adjcx : adjcy)) {
        INT i, prev_rh, new_rh, adj_rh, prev_idx, current_idx;
	REBAR_BAND *prev, *current, *walk;
	UINT j;

/* FIXME:  problem # 2 */
	if (((infoPtr->dwStyle & CCS_VERT) ?
#if PROBLEM2
	     (x < adjcx) : (y < adjcy)
#else
	     (adjcx - x > 5) : (adjcy - y > 4)
#endif
	     ) &&
	    (infoPtr->uNumBands > 1)) {
	    for (i=(INT)infoPtr->uNumBands-2; i>=0; i--) {
		TRACE("P2 adjcx=%d, adjcy=%d, x=%d, y=%d\n",
		      adjcx, adjcy, x, y);

		/* find the current band (starts at i+1) */
		current = &infoPtr->bands[i+1];
		current_idx = i+1;
		while (HIDDENBAND(current)) {
		    i--;
		    if (i < 0) break; /* out of bands */
		    current = &infoPtr->bands[i+1];
		    current_idx = i+1;
		}
		if (i < 0) break; /* out of bands */

		/* now find the prev band (starts at i) */
	        prev = &infoPtr->bands[i];
		prev_idx = i;
		while (HIDDENBAND(prev)) {
		    i--;
		    if (i < 0) break; /* out of bands */
		    prev = &infoPtr->bands[i];
		    prev_idx = i;
		}
		if (i < 0) break; /* out of bands */

		prev_rh = ircBw(prev);
		if (prev->iRow == current->iRow) {
		    new_rh = (infoPtr->dwStyle & RBS_VARHEIGHT) ?
			current->lcy + REBARSPACE(current) :
			mmcy;
		    adj_rh = new_rh + SEP_WIDTH;
		    infoPtr->uNumRows++;
		    current->fDraw |= NTF_INVALIDATE;
		    current->iRow++;
		    if (infoPtr->dwStyle & CCS_VERT) {
		        current->rcBand.top = inity;
			current->rcBand.bottom = clientcy;
			current->rcBand.left += (prev_rh + SEP_WIDTH);
			current->rcBand.right = current->rcBand.left + new_rh;
			x += adj_rh;
		    }
		    else {
		        current->rcBand.left = initx;
			current->rcBand.right = clientcx;
			current->rcBand.top += (prev_rh + SEP_WIDTH);
			current->rcBand.bottom = current->rcBand.top + new_rh;
			y += adj_rh;
		    }
                    TRACE("P2 moving band %d to own row at (%d,%d)-(%d,%d)\n",
			  current_idx,
			  current->rcBand.left, current->rcBand.top,
			  current->rcBand.right, current->rcBand.bottom);
                    TRACE("P2 prev band %d at (%d,%d)-(%d,%d)\n",
			  prev_idx,
			  prev->rcBand.left, prev->rcBand.top,
			  prev->rcBand.right, prev->rcBand.bottom);
		    TRACE("P2 values: prev_rh=%d, new_rh=%d, adj_rh=%d\n",
			  prev_rh, new_rh, adj_rh);
		    /* for bands below current adjust row # and top/bottom */
		    for (j = current_idx+1; j<infoPtr->uNumBands; j++) {
		        walk = &infoPtr->bands[j];
			if (HIDDENBAND(walk)) continue;
			walk->fDraw |= NTF_INVALIDATE;
			walk->iRow++;
			if (infoPtr->dwStyle & CCS_VERT) {
			    walk->rcBand.left += adj_rh;
			    walk->rcBand.right += adj_rh;
			}
			else {
			    walk->rcBand.top += adj_rh;
			    walk->rcBand.bottom += adj_rh;
			}
		    }
		    if ((infoPtr->dwStyle & CCS_VERT) ? (x >= adjcx) : (y >= adjcy))
		        break; /* all done */
		}
	    }
	}
    }

    /* ******* End Phase 2 - split rows till adjustment height full ******* */


    /* ******* Start Phase 2a - mark first and last band in each ******* */

    prevBand = NULL;
    for (i = 0; i < infoPtr->uNumBands; i++) { 	 
        lpBand = &infoPtr->bands[i]; 	 
        if (HIDDENBAND(lpBand))
            continue;
        if( !prevBand ) {
            lpBand->fDraw |= DRAW_FIRST_IN_ROW;
            prevBand = lpBand;
        }
        else if( prevBand->iRow == lpBand->iRow )
            prevBand = lpBand;
        else {
            prevBand->fDraw |= DRAW_LAST_IN_ROW;
            lpBand->fDraw |= DRAW_FIRST_IN_ROW;
            prevBand = lpBand;
        }
    }
    if( prevBand )
        prevBand->fDraw |= DRAW_LAST_IN_ROW;

    /* ******* End Phase 2a - mark first and last band in each ******* */


    /* ******* Start Phase 2b - adjust all bands for height full ******* */
    /* assumes that the following variables contain:                 */
    /*   y/x     current height/width of all rows                    */
    /*   clientcy/clientcx     height/width of client area           */

    if (((infoPtr->dwStyle & CCS_VERT) ? clientcx > x : clientcy > y) &&
	infoPtr->uNumBands) {
	INT diff, i;
	UINT j;

	diff = (infoPtr->dwStyle & CCS_VERT) ? clientcx - x : clientcy - y;

        /* iterate backwards thru the rows */
        for (i = infoPtr->uNumBands-1; i>=0; i--) {
	    lpBand = &infoPtr->bands[i];
	    if(HIDDENBAND(lpBand)) continue;

	    /* if row has more than 1 band, ignore it */
            if( !(lpBand->fDraw&DRAW_FIRST_IN_ROW) )
                continue;
            if( !(lpBand->fDraw&DRAW_LAST_IN_ROW) )
                continue;

            /* FIXME: this next line is wrong, but fixing it to be inverted causes IE's sidebars to be the wrong size */
	    if (lpBand->fMask & RBBS_VARIABLEHEIGHT) continue;
	    if (((INT)lpBand->cyMaxChild < 1) ||
		((INT)lpBand->cyIntegral < 1)) {
		if (lpBand->cyMaxChild + lpBand->cyIntegral == 0) continue;
		ERR("P2b band %u RBBS_VARIABLEHEIGHT set but cyMax=%d, cyInt=%d\n",
		    i, lpBand->cyMaxChild, lpBand->cyIntegral);
		continue;
	    }
	    /* j is now the maximum height/width in the client area */
	    j = ((diff / lpBand->cyIntegral) * lpBand->cyIntegral) +
		ircBw(lpBand);
	    if (j > lpBand->cyMaxChild + REBARSPACE(lpBand))
		j = lpBand->cyMaxChild + REBARSPACE(lpBand);
	    diff -= (j - ircBw(lpBand));
	    if (infoPtr->dwStyle & CCS_VERT)
		lpBand->rcBand.right = lpBand->rcBand.left + j;
	    else
		lpBand->rcBand.bottom = lpBand->rcBand.top + j;
            TRACE("P2b band %d, row %d changed to (%d,%d)-(%d,%d)\n",
		  i, lpBand->iRow,
		  lpBand->rcBand.left, lpBand->rcBand.top,
		  lpBand->rcBand.right, lpBand->rcBand.bottom);
	    if (diff <= 0) break;
	}
	if (diff < 0) {
	    ERR("P2b allocated more than available, diff=%d\n", diff);
	    diff = 0;
	}
	if (infoPtr->dwStyle & CCS_VERT)
	    x = clientcx - diff;
	else
	    y = clientcy - diff;
    }

    /* ******* End Phase 2b - adjust all bands for height full ******* */


    /* ******* Start Phase 3 - adjust all bands for width full ******* */

    if (infoPtr->uNumBands) {
        int startband;

	/* If RBS_BANDBORDERS set then indicate to draw bottom separator */
	/* on all bands in all rows but last row.                        */
	/* Also indicate to draw the right separator for each band in    */
	/* each row but the rightmost band.                              */
	if (infoPtr->dwStyle & RBS_BANDBORDERS) {

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

                /* not righthand bands */
                if( !(lpBand->fDraw & DRAW_LAST_IN_ROW) )
		    lpBand->fDraw |= DRAW_RIGHTSEP;

                /* not the last row */
                if( lpBand->iRow != infoPtr->uNumRows )
		    lpBand->fDraw |= DRAW_BOTTOMSEP;
	    }
	}

	/* Distribute the extra space on the horizontal and adjust  */
	/* all bands in row to same height.                         */
	mcy = 0;
        startband = -1;
        for (i=0; i<infoPtr->uNumBands; i++) {

            lpBand = &infoPtr->bands[i];

            if( lpBand->fDraw & DRAW_FIRST_IN_ROW )
            {
                startband = i;
                mcy = 0;
            }

            if ( (mcy < ircBw(lpBand)) && !HIDDENBAND(lpBand) )
                mcy = ircBw(lpBand);

            if( lpBand->fDraw & DRAW_LAST_IN_ROW )
            {
	        TRACE("P3 processing row %d, starting band %d, ending band %d\n",
		      lpBand->iRow, startband, i);
                if( startband < 0 )
                    ERR("Last band %d with no first, row %d\n", i, lpBand->iRow);

	        REBAR_AdjustBands (infoPtr, startband, i,
			       (infoPtr->dwStyle & CCS_VERT) ?
			       clientcy : clientcx, mcy);
            }
	}

	/* Calculate the other rectangles in each band */
	if (infoPtr->dwStyle & CCS_VERT) {
	    REBAR_CalcVertBand (infoPtr, 0, infoPtr->uNumBands,
				notify);
	}
	else {
	    REBAR_CalcHorzBand (infoPtr, 0, infoPtr->uNumBands,
				notify);
	}
    }

    /* ******* End Phase 3 - adjust all bands for width full ******* */

    /* now compute size of Rebar itself */
    infoPtr->oldSize = infoPtr->calcSize;
    if (infoPtr->uNumBands == 0) {
	/* we have no bands, so make size the size of client */
	x = clientcx;
	y = clientcy;
    }
    if (infoPtr->dwStyle & CCS_VERT) {
        if( infoPtr->uNumBands != 0 && x < REBAR_MINSIZE )
            x = REBAR_MINSIZE;
	infoPtr->calcSize.cx = x;
	infoPtr->calcSize.cy = clientc