gusucode.com > 信号处理工具箱 - signal源码程序 > signal\signal\siggui\private\fvmotion.m
function fvmotion(toolnum) %FVMOTION - Filter Viewer tool motion function for changing pointer. % regular mouse motion in figure - update cursor % fig - the figure number of the tool % Copyright (c) 1988-98 by The MathWorks, Inc. % $Revision: 1.1 $ figname = prepender(['Filter Viewer']); fig = findobj('name',figname); if isempty(fig) return end ud = get(fig,'userdata'); switch ud.pointer case 0 % normal mode ptr = 'arrow'; if ud.prefs.tool.ruler ruler_curs = ruler('motion',fig); if ruler_curs == 1 setptr(fig,'hand1') return elseif ruler_curs == 2 setptr(fig,'hand2') return end end case 1 % zoom mode if ud.prefs.tool.ruler sz = ud.sz; figpos = get(fig,'position') - [0 0 sz.rw 0]; else figpos = get(fig,'position'); end fpos = get(ud.ht.frame1,'position'); tpos = get(ud.toolbar.toolbar,'position'); pt = get(fig,'currentpoint'); if pt(1)>fpos(3) & pt(1)<figpos(3) & pt(2)<(tpos(2)) ptr = 'cross'; else ptr = 'arrow'; end case 2 % help mode ptr = 'help'; case -1 % watch cursor ptr = 'watch'; otherwise ptr = 'arrow'; end setptr(fig,ptr)