svghmi/widget_multistate.ysl2
author Edouard Tisserant <edouard.tisserant@gmail.com>
Wed, 19 Oct 2022 20:53:01 +0200
branchwxPython4
changeset 3635 5107a2712b17
parent 3577 6c7a7b22bec9
permissions -rw-r--r--
Update README.md
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// widget_multistate.ysl2
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widget_defs("MultiState") {
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    longdesc
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    ||
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    Mutlistateh widget hides all subelements whose label do not match given
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    variable value representation. For exemple if given variable type
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    is HMI_INT and value is 1, then elements with label '1' will be displayed.
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    Label can have comments, so '1#some comment' would also match. If matching
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    variable of type HMI_STRING, then double quotes must be used. For exemple,
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    '"hello"' or '"hello"#another comment' match HMI_STRING 'hello'.
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    Click on widget changes variable value to next value in given list, or to
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    first one if not initialized to value already part of the list.
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    ||
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    shortdesc > Show elements whose label match value.
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    // TODO: add optional format/precision argument to support floating points
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    path name="value" accepts="HMI_INT,HMI_STRING" > value to compare to labels
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}
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widget_class("MultiState")
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        frequency = 5;
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        state = 0;
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        dispatch(value) {
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            this.state = value;
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            for(let choice of this.choices){
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                if(this.state != choice.value){
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                    choice.elt.setAttribute("style", "display:none");
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                } else {
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                    choice.elt.setAttribute("style", choice.style);
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                }
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            }
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            // TODO : use RequestAnimate and animate()
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        }
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        on_click(evt) {
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            //get current selected value
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            let next_ind;
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            for(next_ind=0; next_ind<this.choices.length; next_ind++){
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                if(this.state == this.choices[next_ind].value){
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                   next_ind = next_ind + 1;
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                   break;
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                }
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            }
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            //get next selected value
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            if(this.choices.length > next_ind){
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                this.state = this.choices[next_ind].value;
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            }
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            else{
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                this.state = this.choices[0].value;
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            }
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            //post value to plc
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            this.apply_hmi_value(0, this.state);
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        }
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        init() {
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            this.element.setAttribute("onclick", "hmi_widgets['"+this.element_id+"'].on_click(evt)");
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        }
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    ||
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widget_defs("MultiState") {
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    |     choices: [
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    const "regex",!"'^(\"[^\"].*\"|\-?[0-9]+|false|true)(#.*)?$'"!;
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    foreach "$result_svg_ns//*[@id = $hmi_element/@id]//*[regexp:test(@inkscape:label,$regex)]" {
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        const "literal", "regexp:match(@inkscape:label,$regex)[2]";
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    |         {
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    |             elt:id("«@id»"),
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    |             style:"«@style»",
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    |             value:«$literal»
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    |         }`if "position()!=last()" > ,`
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    }
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    |     ],
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}