Matlab GUI 菜单和工具栏常用操作

Matlab GUI 常用操作
菜单
1.编辑菜单
打开GUIDE，选择工具栏上面的菜单编辑按钮
2.添加菜单回调函数（callback）
菜单编辑完成保存后，在fig对应的m文件中会自动生成菜单的回调函数声明例如菜单tag名为menuFilePrint，则对应的callback函数为：
function menuFilePrint_Callback(hObject, eventdata, handles)
可以在该函数内添加代码实现功能。

3.菜单项访问
获取菜单句柄
在matlab的函数中要对某个菜单进行访问，必须获得该菜单的句柄。

如果是在菜单的回调函数里面，hObject就是该菜单的句柄；
如果是在其他的函数里面要获得某一菜单的句柄，比如选中工具栏上的ZoomIn按钮，按钮处于被按下状态，同时要设置对应菜单项view->Zoom-Zoom In 为选中状态，如下图：
这里要在按钮“ZoomIn”的callback函数里面实现对菜单menuViewZoomIn的状态设置。

首先得获得菜单的句柄：
% first we must get the handle of menuZoomIn
hFigChildren = allchild(gcf);
% menuView handle
hMenuView = findobj(hFigChildren,'Tag','menuView');
hvc = allchild(hMenuView);
% menuViewZoom
hViewZoom = findobj(hvc,'Tag','menuViewZoom');
hvzc = allchild(hViewZoom);
%menuZoomIn handle
hZoomIn = findobj(hvzc,'Tag', 'menuZoomIn');
获取设置菜单状态
得到菜单的句柄后就可以得到菜单当前的状态了：
if strcmp(get(hZoomIn, 'Checked'),'on')
set(hZoomIn, 'Checked', 'off');
else
set(hZoomIn, 'Checked', 'on');
end
工具栏
1.不显示工具栏
1）GUIDE开发界面
在对应的m文件中找到
function Main_OpeningFcn(hObject, eventdata, handles, varargin)在该函数里面添加：
set(hObject,'Toolbar','none')；
2）M文件开发
hMainFigure = figure(... % The main GUI figure
'MenuBar','none', ...
'Toolbar','none', ...
'HandleVisibility','callback', ...
'Color', get(0,...
'defaultuicontrolbackgroundcolor'));
2.显示“Figure”工具栏
set(hObject,'Toolbar','figure');
3.添加自定义工具栏
set(hObject,'Toolbar','none')；
hToolbar = uitoolbar(hObject);
hNewPushtool = uipushtool(... % Open toolbar button
'Parent',hToolbar,...
'TooltipString','New File',...
'CData',imread('New.bmp'));
'HandleVisibility','callback', ...
'ClickedCallback', @hOpenMenuitemCallback);
4.获取工具栏句柄
% get toolbar handle
hToolbar = findall(gcf,'Type','uitoolbar');
if isempty(hToolbar), return, end
5.获取figure工具栏按钮的tag值
% get toolbar handle
hToolbar = findall(gcf,'Type','uitoolbar');
if isempty(hToolbar), return, end
% get all children
hChildren = allchild(hToolbar);
if isempty(hChildren), return,end
hTags = get(hChildren, ‘Tag’);
hTags保存了工具栏所有按钮的tag值：
6.获取设置figure工具栏按钮的callback函数
%reset callback function for "Zoom in"
hZoomIn = findobj(hChildren,'Tag','Exploration.ZoomIn');
set(hZoomIn,'ClickedCallback',@tbZoomIn_Callback);
function tbZoomIn_Callback(hObject, eventdata)
% hObject handle to tbZoomIn (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB 7.删除figure工具栏按钮
% set figure toolbar first
set(hObject,'Toolbar','figure');
% get toolbar handle
tbh = findall(hObject,'Type','uitoolbar');
if isempty(tbh), return, end
% toolbar buttons collection
hChildren = allchild(tbh);
if isempty(hChildren), return, end
% delete data cursor button
hDeleted = findobj(hChildren,'Tag','Exploration.DataCursor');
delete(hDeleted);
8.设置figure工具栏按钮的状态
% get toolbar handle
hToolbar = findall(gcf,'Type','uitoolbar');
if isempty(hToolbar), return, end
% get all children
hChildren = allchild(hToolbar);
if isempty(hChildren), return,end
hTags = get(hChildren, 'Tag');
% find "Zoom In" button
hb = findobj(hChildren,'Tag','Exploration.ZoomIn');
if isempty(hb),return, end
% set state
if strcmp(get(hObject, 'Checked'),'on')
set(hObject, 'Checked', 'off');
set(hb,'State', 'off');
else
set(hObject, 'Checked', 'on');
set(hb,'State', 'on');
end。