MATLAB: How to add minimize tool button in GUI

guiminimize object

I have a GUI which has several charts/graphs to display. But I would like to add an GUI object whose function is to minimize /maximize or restore the graph/plot within the GUI using a button. How can I do it? I have seen the list of GUI components, none of them are relevant to what I am looking for. Is it possible to import new functionality from other development environments like Microsoft .Net /Visual Studio or JAVA to MATLAB.

Best Answer

function main
Gui.FigH    = figure;
Gui.AxesH   = axes;
Gui.ButtonH = uicontrol('Style', 'ToggleButton', 'Value', 1, ...
   'String', 'Show axes', ...
   'Units',  'pixels', ...
   'Position', [5, 5, 80, 25], ...
   'Callback', @ButtonCB);
plot(rand(10));
Gui.ButtonH.Units = 'normalized';
Gui.ButtonPos     = Gui.ButtonH.Position;
Gui.ButtonH.Units = 'pixels';
Gui.AxesPos       = Gui.AxesH.Position;
guidata(Gui.FigH, Gui);
end
function ButtonCB(ButtonH, EventData)
Gui = guidata(ButtonH);
if ButtonH.Value
   state = 'on';
else
   state = 'off';
end
set(Gui.AxesH, 'Visible', state);
set(allchild(Gui.AxesH), 'Visible', state);
end

This is a kind of "minimizing" already and really cheap to implement. You can write a zooming or moving out of the visible area easily also. Change the callback to:

function ButtonCB(ButtonH, EventData)
Gui = guidata(ButtonH);
if ButtonH.Value
   ini   = Gui.ButtonPos;
   fin   = Gui.AxesPos;
   state = 'on';
else
   ini   = Gui.AxesPos;
   fin   = Gui.ButtonPos;
   state = 'off';
end
% Make axes visible and move it to or from the button position:
set(Gui.AxesH, 'Visible', 'on');
set(allchild(Gui.AxesH), 'Visible', 'on');
n    = 20;
step = (fin - ini) / n;
for k = 1:n
   set(Gui.AxesH, 'Position', ini + k * step);
   drawnow;
end
set(Gui.AxesH, 'Visible', state);
set(allchild(Gui.AxesH), 'Visible', state);
end

In this example the axes is moved to or from the position of the button. Other effects are easy to implement also: Moving above the top of the window, shrinking inplace until they vanish, etc. Of course there are many ways to overdue the effects...

Related Solutions

MATLAB: What are the changes to the behavior of ResizeFcn in MATLAB R2014b

Changes in the behavior of the 'ResizeFcn' callback reflect changes to the positioning and layout of figures and containers to make their behavior more consistent with one another and across all platforms. Note that use of the 'ResizeFcn' property is not recommended. It might be removed in a future release. Use 'SizeChangedFcn' instead.

Starting in R2014b, the ResizeFcn callback might execute before all variables in the program file are assigned. When this happens, the 'ResizeFcn' callback returns an error.

For example, this GUI has a 'ResizeFcn' callback that uses a variable returned by the 'createGUI' function.

function mygui
    hs = createGUI;
    function handles = createGUI
        % Create figure and its children

        f = figure('Tag','fig',...
                   'ResizeFcn',@doResizeFcn,...
                   'Visible','off');
        u = uicontrol('Parent',f,'Tag','ctrl');
        handles = guihandles(f);
        
        % make figure visible
        set(f,'Visible','on');
    end
    function doResizeFcn(varargin)
        length(hs)
    end
end
Running this GUI in the new graphics system results in an error because 'hs' does not exist when the 'doResizeFcn' callback executes for the first time (when the figure becomes visible).
mygui
Undefined function or variable "hs".
Error in mygui/doResizeFcn (line 18)
        length(hs)
 
Error using mygui/createGUI (line 14)
Error while evaluating Figure SizeChangedFcn
To correct the problem, make the figure visible after all the variables that the callback references are assigned. In this case, make the figure visible after calling the createGUI function.
function mygui
    hs = createGUI;
    % Make the figure visible
    set(hs.fig, 'Visible','on');
     function handles = createGUI
        % Create figure and its children
        f = figure('Tag','fig',...
                   'ResizeFcn',@doResizeFcn,...
                   'Visible','off');
        u = uicontrol('Parent',f,'Tag','ctrl');
        handles = guihandles(f);
    end
    function doResizeFcn(varargin)
        length(hs)
    end
end

Starting in R2014b, changing the size of an invisible container, such as a figure, panel, button group, does not trigger the ResizeFcn callback until the container becomes visible.

In previous releases of MATLAB®, the 'ResizeFcn' callback executes when the size of the container changes, regardless of whether it is visible.

You can control the visibility of figures and containers using the 'Visible' property:

A figure is visible if its 'Visible' property is set to 'on'.
A uipanel or uibuttongroup is visible if its 'Visible' property, and that of its ancestors, is set to 'on'. For example, a uibuttongroup whose parent is a uipanel is visible when the 'Visible' property of the uibuttongroup, uipanel, and the figure are all set to 'on'.

Starting in R2014b, changing the outer bounds of a figure or container does not trigger the 'ResizeFcn' callback.

For example, this figure 'ResizeFcn' callback does not execute in the new graphics system when you change the 'OuterPosition' (by removing the menu bar) on the second line of this code. However, the callback does execute in previous releases of MATLAB.

f = figure('ResizeFcn','display resized');
set(f,'Menubar','none');
Starting in R2014b, the 'ResizeFcn' callback executes only when the container's drawable area (the inner area) changes. Previous releases of MATLAB might not execute the 'ResizeFcn' callback when the drawable area changes.

For example, this uipanel 'ResizeFcn' callback executes in the new graphics system when you change the uipanel's drawable area by increasing the border width. The callback does not execute when your run this code in previous releases.

p = uipanel('ResizeFcn','display resized');
set(p,'BorderWidth',3);

MATLAB: Problem with Toggling Invisibility of Edit Text Box

With App Designer you need to look at the Object's value property as you are doing. However, it will return a logical value. If it is depressed it will return 1 (true), else it will return 0 (false).

function StateButton_Pushed(app, eventdata)
    value = app.StateButton.Value;
    if value % I am considering this the pressed state
        set(app.StateEditFieldLabel, 'Visible', 'on');
        set(app.StateEditField, 'Visible','on');
    elseif ~value % I am considering this the normal state
        set(app.StateEditFieldLabel, 'Visible', 'off');
        set(app.StateEditField, 'Visible','off');
    end
end

Best Answer

Related Solutions

MATLAB: What are the changes to the behavior of ResizeFcn in MATLAB R2014b

MATLAB: Problem with Toggling Invisibility of Edit Text Box

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