MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Guida Utente Scaricare il pdf (Pagina 741)

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101

Icon Editor

Share Data Between Two GUIs

The iconEditor embeds a GUI, the colorPalette, to enable the user to select

colors for the icon cells. The colorPalette returns the selected color to the

iconEditor via a function handle.

The colorPalette GUI. Like the iconEditor, the colorPalette defines a cell

array,

mOutputArgs, to hold its output arguments.

mOutputArgs = {}; % Variable for storing output when GUI returns

Just before returning, colorPalette assigns mOutputArgs the function

handle for its

getSelectedColor helper function and then assigns

mOutputArgs to varargout to return the arguments.

% Return user defined output i f it is requested

mOutputArgs{1} =@getSelectedColor;

if nargout>0

[varargout{1:nargout}] = mOutputAr gs{:};

end

The iconEditor e xecutes the colorPalette’s getSeclectedColor function

whenever it invokes the function that colorPalette returns to it.

function color = getSelectedColor

% function returns the curr ently selected colo r in this

% colorPlatt e

color = mSelectedColor;

The iconEditor GUI. The iconEditor function calls colorPalette only once

and specifies its parent to be a panel in the iconEditor.

% Host the ColorPalette in the PaletteContainer a nd keep the

% function handle for getti ng its selected col or for editing

% icon.

mGetColorFcn = colorPalette('parent', hPaletteContainer);

This call creates the colorPalette as a com ponent of the iconEditor and then

returns a function handle that

iconEditor can call to get the currently

selected color.

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MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Guida Utente Pagina 741

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