RUNTIME: Variable forcing now uses limited list and buffer instead of systematical instance tree traversal and in-tree "fvalue" to keep track of forced value for pointed variables (external, located). Pointer swapping is performed when forcing externals and located, with backup being restored when forcing is reset. Retain still uses tree traversal.
// widget_switch.ysl2
widget_desc("Switch") {
longdesc
||
Switch widget hides all subelements whose label do not match given
variable current value representation. For exemple if given variable type
is HMI_INT and value is 1, then elements with label '1' will be displayed.
Label can have comments, so '1#some comment' would also match. If matching
variable of type HMI_STRING, then double quotes must be used. For exemple,
'"hello"' or '"hello"#another comment' match HMI_STRING 'hello'.
||
shortdesc > Show elements whose label matches value.
// TODO: add optional format/precision argument to support floating points
// TODO: support (in)equations and ranges
path name="value" accepts="HMI_INT,HMI_STRING" > value to compare to labels
}
widget_class("Switch")
||
frequency = 5;
dispatch(value) {
for(let choice of this.choices){
if(value != choice.value){
choice.elt.setAttribute("style", "display:none");
} else {
choice.elt.setAttribute("style", choice.style);
}
}
}
||
widget_defs("Switch") {
| choices: [
const "regex",!"'^(\"[^\"].*\"|\-?[0-9]+|false|true)(#.*)?$'"!;
const "subelts", "$result_widgets[@id = $hmi_element/@id]//*";
const "subwidgets", "$subelts//*[@id = $hmi_widgets/@id]";
const "accepted", "$subelts[not(ancestor-or-self::*/@id = $subwidgets/@id)]";
foreach "$accepted[regexp:test(@inkscape:label,$regex)]" {
const "literal", "regexp:match(@inkscape:label,$regex)[2]";
| {
| elt:id("«@id»"),
// TODO : use style.display = "none" to hide element
| style:"«@style»",
| value:«$literal»
| }`if "position()!=last()" > ,`
}
| ],
}