www.gusucode.com > mbcguitools 工具箱 matlab 源码程序 > mbcguitools/@mbcwidgets/@scrollTable/checkScrollLocation.m
function ret = checkScrollLocation( obj ) %CHECKSCROLLLOCATION Adjust current row and column if necessary % % FLAG = CHECKSCROLLLOCATION(OBJ) checks that the settings of CurrentRow and % CurrentColumn are not too large. This is useful for situations where % the number of visible rows/columns has increased because that may lead % to the table being scrolled beyond it's normal limit. % % The return variable FLAG is a uint8 value indicating whether an % adjustment was necessary. If it is 0 then no adjustments were made. if % the first bit is set to 1 then the CurrentRow property has been altered. % If the second bit is set to 1 then the CurrentColumn property has been % altered. % Copyright 2000-2006 The MathWorks, Inc. and Ford Global Technologies, Inc. ret = uint8(0); dataSize = obj.pGetDataSize; if (obj.CurrentRow+obj.numRows-1)>dataSize(1) obj.CurrentRow = dataSize(1)-obj.numRows+1; ret = bitset(ret,1); end if (obj.CurrentColumn+obj.numCols-1)>dataSize(2) obj.CurrentColumn = dataSize(2)-obj.numCols+1; ret = bitset(ret,2); end