svghmi/widget_animate.ysl2
author Edouard Tisserant <edouard.tisserant@gmail.com>
Tue, 15 Feb 2022 16:10:19 +0100
branchwxPython4
changeset 3428 803ce245f72f
parent 3232 7bdb766c2a4d
permissions -rw-r--r--
Tests: Add a Makefile variable to allow changing standalone headless X server command (Xvfb by default)
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// widget_animate.ysl2
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7bdb766c2a4d SVGHMI: In order to allow widget signature and description to coexist in same ysl2 file, introduced widget_class, widget_defs to declare widget codegen templates and gen_index_xhtml to mark templates that are only usefull in gen_index_xhtml.xslt.
Edouard Tisserant <edouard.tisserant@gmail.com>
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widget_class("Animate") {
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        frequency = 5;
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        speed = 0;
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        start = false;
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        widget_center = undefined;
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        dispatch(value) {
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            this.speed = value / 5;
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            //reconfigure animation
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            this.request_animate();
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        }
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        animate(){
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           // change animation properties
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           for(let child of this.element.children){
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                if(child.nodeName.startsWith("animate")){
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                    if(this.speed != 0 && !this.start){
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                        this.start = true;
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                        this.element.beginElement();
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                    }
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                    if(this.speed > 0){
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                        child.setAttribute("dur", this.speed+"s");
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                    }
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                    else if(this.speed < 0){
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                        child.setAttribute("dur", (-1)*this.speed+"s");
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                    }
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                    else{
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                        this.start = false;
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                        this.element.endElement();
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                    }
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                }
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           }
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        }
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        init() {
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            let widget_pos = this.element.getBBox();
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            this.widget_center = [(widget_pos.x+widget_pos.width/2), (widget_pos.y+widget_pos.height/2)];
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        }
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}
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