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使用滚动条和滚轮实现面板(panel)的动态滚动

在中文论坛上看到一个但是试了下运行不了

函数function varargout = gui1(varargin)% Begin initialization code - DO NOT EDITgui_Singleton = 1;gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @gui1_OpeningFcn, ... 'gui_OutputFcn', @gui1_OutputFcn, ... 'gui_LayoutFcn', [] , ... 'gui_Callback', []);if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func(varargin{1});endif nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});else gui_mainfcn(gui_State, varargin{:});end% End initialization code - DO NOT EDIT

function gui1_OpeningFcn(hObject, eventdata, handles, varargin)set(handles.figure1,'units','pixels','position',[200,200,480,300]);

%　创建panel并设置其位置handles.uipanel1=uipanel(handles.figure1,'units','pixels','position',[0,-240, 460, 540] ,'title','','bordertype','none');

set(handles.slider1,'units','pixels','position',[460, 0, 20, 300], 'value',1,'parent',handles.figure1);% 创建１０个文本文档handles.texts = cell(10,1);for i=1:10 handles.texts{i} = uicontrol(handles.uipanel1,'units','pixels','position',[100,520-50*i, 80,40],'style','text','string',['text ',num2str(i)],'backgroundcolor',[0.3,0.3,0.3],...'foregroundcolor',[1,1,1],'fontsize',20);endhandles.output = hObject;% Update handles structureguidata(hObject, handles);

% --- Outputs from this function are returned to the command line.function varargout = gui1_OutputFcn(hObject, eventdata, handles)varargout{1} = handles.output;

% 滚动条的回调函数，首先取得滚动条的值，再根据其值设置panel的位置(左下角点的纵坐标。)function slider1_Callback(hObject, eventdata, handles)%　取得滚动条的值pos = get(hObject,'value');%　设置panel的位置(左下角点的纵坐标。set(handles.uipanel1,'position',[0,-240*pos,460,540]);guidata(hObject,handles)

function slider1_CreateFcn(hObject, eventdata, handles)if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor',[.9 .9 .9]);end

% 鼠标滚轮的回调函数function figure1_WindowScrollWheelFcn(hObject, eventdata, handles)% 获取目前滚动条的值slidervalue = get(handles.slider1,'value');

% 获取鼠标滚轮的值，向前滚为正，向后滚为负scrollvalue = eventdata.VerticalScrollCount/10;

% 确定滚动量movevalue = slidervalue - scrollvalue;

% 限制滚动范围(防止整个面板都滚出图形)if movevalue >1 movevalue = 1;elseif movevalue < 0 movevalue = 0;end

% 使滚动条的方块的位置与滚轮的滚动同步set(handles.slider1,'value',movevalue);% 获取figure和panel的位置figure1pos = get(handles.figure1,'position');panelpos = get(handles.uipanel1,'position');

% 更新panel的位置panelpos(2) = -(panelpos(4)-figure1pos(4))*movevalue;set(handles.uipanel1,'position',panelpos);guidata(hObject,handles);