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Thread: Zoom features

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  1. #1
    Sencha Premium Member
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    Default Answered: Zoom features

    We have some users with visibility issues and typically run their webapps using the browser's zoom. We are using packager, which doesn't have any default 'zoom' functions. The closest I have found is to use "document.body.style.zoom='125%'".

    The page does zoom, but the viewport doesn't seem to notice. So the extra 25% just flows off the screen on the right and bottom. Re-sizing the window just carries the problem with.

    The only thing I can see is that viewport.setWidth() (& height) could possibly be used to compensate, but any event that causes re-layout will bring back the 'wrong' dimensions.

    Any ideas?

    Thanks in advance.

  2. Have you looked into setting the zoomFactor property of the SDP window?

    http://docs.sencha.com/desktop-packager/1.2/#!/api/Ion.ui.Window-property-zoomFactor

    Disclosure: have never used this property in my own apps, just thought perhaps this would address the problem.

    --Mike

  3. #2
    Sencha - Engineering Operations mike.estes's Avatar
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    Default

    Have you looked into setting the zoomFactor property of the SDP window?

    http://docs.sencha.com/desktop-packager/1.2/#!/api/Ion.ui.Window-property-zoomFactor

    Disclosure: have never used this property in my own apps, just thought perhaps this would address the problem.

    --Mike

  4. #3
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    Default

    Awesome, my fault for looking at the 1.0 documentation not 1.2.

  5. #4
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    Default Implemented it

    It works quite well, a little jerky on the move but who cares for the functionality. If anyone's interested, here are the basic config options:
    Code:
    Ext.create('widget.slider',{
        tipText: function(thumb) {
            //make it show up as a percent
            return Ext.String.format('{0}%',thumb.value);
        },
        fieldLabel: 'Zoom',
        value: 100,
        increment: 5,
        maxValue: 150,
        minValue: 100,
        width: 100,
        labelWidth: 30,
        listeners: {
            changecomplete: function(slider,newValue,thumb,eOpts){
                Ion.ui.mainWindow.zoomFactor=newValue/100;
            }
        }
    });

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