SVGHMI: Prepare accepting multiple clients on multiple HMI: Use POULibrary new capability to add variables to PLC Configuration. Now heartbeat and HMI tree root are added by the library part of SVGHMI, and not by each instance.
include yslt_noindent.yml2
in xsl decl svgtmpl(match, xmlns="http://www.w3.org/2000/svg") alias template;
istylesheet
/* From Inkscape */
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:cc="http://creativecommons.org/ns#"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:svg="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
/* Namespace to invoke python code */
xmlns:ns="beremiz"
extension-element-prefixes="ns func exsl regexp str dyn"
exclude-result-prefixes="ns func exsl regexp str dyn" {
const "hmi_elements", "//svg:*[starts-with(@inkscape:label, 'HMI:')]";
const "widgetparams", "ns:GetWidgetParams()";
const "indexed_hmitree", "/.."; // compatibility with parse_labels.ysl2
include parse_labels.ysl2
const "_parsed_widgets" apply "$hmi_elements", mode="parselabel";
const "parsed_widgets","exsl:node-set($_parsed_widgets)";
const "svg_widget", "$parsed_widgets/widget[1]";
const "svg_widget_type", "$svg_widget/@type";
const "svg_widget_path", "$svg_widget/@path";
const "svg_widget_count", "count($parsed_widgets/widget)";
// Templates to change label paths(s)
template "@* | node()", mode="replace_params" {
xsl:copy apply "@* | node()", mode="replace_params";
}
template "arg", mode="replace_params";
template "path", mode="replace_params";
template "widget", mode="replace_params" {
xsl:copy {
apply "@* | node()", mode="replace_params";
copy "$widgetparams/*";
};
}
// all attribs are usually copied
svgtmpl "@*", mode="inline_svg" xsl:copy;
// except labels, ignored
svgtmpl "@inkscape:label[starts-with(., 'HMI:')]", mode="inline_svg";
template "node()", mode="inline_svg" xsl:copy {
// in case this node widget's main element inject label
if "@id = $svg_widget/@id" {
const "substituted_widget" apply "$svg_widget", mode="replace_params";
const "substituted_widget_ns", "exsl:node-set($substituted_widget)";
const "new_label" apply "$substituted_widget_ns", mode="genlabel";
attrib "inkscape:label" > «$new_label»
}
// all nodes are copied as well
apply "@* | node()", mode="inline_svg";
}
template "/" {
comment > Widget dropped in Inkscape from Beremiz
choose {
when "$svg_widget_count < 1"
error > No widget detected on selected SVG
when "$svg_widget_count > 1"
error > Multiple widget DnD not yet supported
}
apply "/", mode="inline_svg";
}
}