svghmi/widget_listswitch.ysl2
author Edouard Tisserant
Thu, 17 Nov 2022 11:08:36 +0100
changeset 3682 c613afdab571
parent 3403 4a048b5b9e3b
permissions -rw-r--r--
IDE: Optimization of modification events processing in text editors.

Too many modifications types where registered, and then too many events were fired.
Also, in case of uninterrupted sequence of events, updates to the model is deferred to the end of that sequence (wx.Callafter).
// widget_switch.ysl2

widget_desc("ListSwitch") {
    longdesc
    ||
    ListSwitch widget displays one item of an HMI:List depending on value of
    given variable. Main element of the widget must be a clone of the list or
    of an item of that list.  

    Given variable's current value is compared to list items
    label. For exemple if given variable type
    is HMI_INT and value is 1, then item with label '1' will be displayed.
    If matching variable of type HMI_STRING, then no quotes are needed. 
    For exemple, 'hello' match HMI_STRING 'hello'.
    ||

    shortdesc > Displays item of an HMI:List whose label matches value.

    path name="value" accepts="HMI_INT,HMI_STRING" > value to compare to labels
    
}

widget_class("ListSwitch"){
    ||
        frequency = 5;
    ||
}

widget_defs("ListSwitch") {
    // cloned element must be part of a HMI:List or a HMI:List
    const "targetid", "substring-after($hmi_element/@xlink:href,'#')";
    const "from_list", "$hmi_lists[(@id | */@id) = $targetid]";
    ||
        dispatch: function(value) {
            this.element.href.baseVal = "#"+hmi_widgets["«$from_list/@id»"].items[value];
        },
    ||
}