svghmi/widget_image.ysl2
author Edouard Tisserant <edouard@beremiz.fr>
Thu, 05 Dec 2024 13:56:59 +0100
changeset 4060 d2f5eb3c7d6e
parent 4056 4b2de1a0fbf9
permissions -rw-r--r--
py_ext: fix CSV Writer

fix POU logic :
- SAVE is a BOOL
- invocation of py_eval on rising edge of SAVE
- remove save python argument

fix python:
- use no encoding for file open (python2)
- re-use detected dialect if any
- use no "rt+" and truncate since no need to re-sniff dialect for output file
- return "OK" instead of "#SUCCESS", preventing POU logic to ACK result
- support creating new line if writing just after last line
- support appending data on short rows

fix example:
- use a HMI:Button to trigger CSV write instead of HMI:Input +1
- reload CSVs on on each new CSV opened in file browser
- add display of CSV write output
// widget_image.ysl2

widget_desc("Image") {
    longdesc
    ||
    If Image widget is a svg:image element, then href content is replaced by
    value of given variable.
    ||

    shortdesc > Image display
}

widget_class("Image")
    ||
        frequency = 5;
        dispatch(value, oldval, index) {
            if (index == 0) {
                this.given_url = value;
                this.ready = true;
                this.request_animate();
            }
        }
    ||

widget_defs("Image") {
    |     given_url: "",
    |     ready: false,
    |     animate: function(){
    |       this.element.setAttribute('href', this.given_url);
    |     },
    |
    |     init: function() {
    |       this.animate();
    |     },
}