MATLAB: There’s the possibility to show something hover on a Edit Text?

appearedit texthovermousetext;

Hi everybody!

I'd like to show a text when I hover on an Edit Text space (set as ' enable ', ' off'). I'd like to have something like the text that appears hovering an icon, for example hovering on an image icon, infos like resolution, dimension appears…

Does anyone know if such a thing is possible? And if is it possible, how can I do it??

Thanks a lot!

Best Answer

http://www.mathworks.com/help/techdoc/ref/uicontrol_props.html#bqxoiq8

Looks like you might be able to use a tooltip

Related Solutions

MATLAB: URGENT!! There’s the possibility to control textread input?

fmt = repmat('%s', 1, 31);
[...] = textread(filename, fmt, 'delimiter', '\t');

To control the maximum number of characters per column, or to show an error if the file is not compatible, use

InputLines = textread(filename, '[^\n]', 'delimiter', '\n');

and then parse the strings in InputLines yourself. This would satisfy the literal requirement to use textread() but still give you full flexibility about how you interpret the input.

MATLAB: Reading mouse position while hovering

Ive - I think part of the problem is that you are creating a new textHdl object each time the hoverCallback fires....which will be every time that you move the mouse. So you will never be able to hide the original text object that you created, since you have created another again and again.

This variable needs only to be defined once outside of the callback. You can then adjust the string contents as you move the mouse around the axes. For example,

 function pixHover(x,y)
     Thresh = 40;
     set(gcf,'WindowButtonMotionFcn', @hoverCallback);
     axesHdl = axes;
     textHdl = text('Color', 'black', 'VerticalAlign', 'Bottom');
     function hoverCallback(src, evt)
        mousePoint = get(axesHdl, 'CurrentPoint');
        mouseX = mousePoint(1,1);
        mouseY = mousePoint(1,2);
        distancesToMouse = hypot(x - mouseX, y - mouseY);
        [~, ind] = min(abs(distancesToMouse));
        xrange = range(get(axesHdl, 'Xlim'));
        yrange = range(get(axesHdl, 'Ylim'));
        if abs(mouseX - x(ind)) < Thresh && abs(mouseY - y(ind)) < Thresh
            set(textHdl, 'String', {['x = ', num2str(x(ind))], ['y = ', num2str(y(ind))]});
            set(textHdl, 'Position', [x(ind) + 0.01*xrange, y(ind) + 0.01*yrange])
        else
            set(textHdl, 'String', '')
        end
    end
 end

Since hoverCallback is nested within the pixHover (parent) function, then it has access to the local variables defined there. This includes the handle to the text object, textHdl. As the mouse moves, if we find that the threshold is met for one of the (x,y) pairs, then we just update the String and Position for textHdl. Else, we just set the string to be empty which "hides" it from us. (I suppose we could just manipulate the Visible property instead to explicitly hide the text object.)

Try the above and see what happens!

Best Answer

Related Solutions

MATLAB: URGENT!! There’s the possibility to control textread input?

MATLAB: Reading mouse position while hovering

Related Question