Guard numeric elementInformation fields against "." and normalize decimal comma

- ElementInfoWidget::currentInfo() now skips a field whose validator
  hasn't accepted its text (e.g. a lone "." mid-typing), which
  previously stored and later parsed to 0.
- New QETInformation::NumericInfoValidator rewrites "," to "." before
  validating, so 80,5 on a German/French keyboard no longer silently
  becomes 805. Used at both existing call sites.
- Restored the header's #1/#2/#3 doc comment (was reflowed into a
  run-on paragraph by a previous edit).

sources/editor/ui/elementpropertieseditorwidget.cpp

@@ -44,6 +44,7 @@
 #include <QSplitter>
 #include <QShortcut>
 #include <QMenu>
+#include <QRegularExpressionValidator>
 
 /**
 	@brief The EditorDelegate class
@@ -69,8 +70,7 @@ class EditorDelegate : public QItemDelegate
 			if (key == QETInformation::ELMT_WIDTH || key == QETInformation::ELMT_HEIGHT || key == QETInformation::ELMT_DEPTH)
 			{
 				auto *line_edit = new QLineEdit(parent);
-				auto *validator = new QRegularExpressionValidator(
-					QETInformation::numericInfoPattern(), line_edit);
+				auto *validator = new QETInformation::NumericInfoValidator(line_edit);
 				line_edit->setValidator(validator);
 				line_edit->setPlaceholderText(tr("ex. 80.5"));
 				line_edit->setToolTip(tr("Nombre décimal avec un point comme séparateur (ex. 80.5)"));

sources/qetinformation.cpp

@@ -228,6 +228,33 @@ QRegularExpression QETInformation::numericInfoPattern()
 	return QRegularExpression(QStringLiteral(R"(^[0-9]+\.?[0-9]{0,2}$|^[0-9]*\.[0-9]{1,2}$)"));
 }
 
+/**
+	@brief QETInformation::NumericInfoValidator::NumericInfoValidator
+	@param parent
+*/
+QETInformation::NumericInfoValidator::NumericInfoValidator(QObject *parent) :
+	QRegularExpressionValidator(numericInfoPattern(), parent)
+{
+}
+
+/**
+	@brief QETInformation::NumericInfoValidator::validate
+	Rewrites any "," in @a input to "." in place, then delegates to
+	the base class for the actual numericInfoPattern() check. @a pos
+	is left untouched by the rewrite itself -- replacing "," with "."
+	never changes the string's length, so the cursor position the
+	caller already tracked stays correct.
+	@param input the text being validated; may be rewritten
+	@param pos the cursor position within @a input
+	@return the resulting validation state
+*/
+QValidator::State QETInformation::NumericInfoValidator::validate(QString &input, int &pos) const
+{
+	if (input.contains(QLatin1Char(',')))
+		input.replace(QLatin1Char(','), QLatin1Char('.'));
+	return QRegularExpressionValidator::validate(input, pos);
+}
+
 /**
  * @brief QETInformation::infoToVar
  * @param info

sources/qetinformation.h

@@ -20,6 +20,7 @@
 
 #include <QHash>
 #include <QRegularExpression>
+#include <QRegularExpressionValidator>
 #include <QStringList>
 
 /**
@@ -27,10 +28,12 @@
  * element, conductor and diagram.
  * Each information have 3 values :
  * #1 the info key = the key of an information as a QString used in the code
- * (example : label) #2 the info key to variable = the key in form of a
- * variable. This is used by the user to replace a variable by the string of
- * this variable (example : %{label}) #3 the info key translated to the current
- * local (example label in dutch = Betriebsmittelkennzeichen)
+ * (example : label)
+ * #2 the info key to variable = the key in form of a variable. This is used
+ * by the user to replace a variable by the string of this variable
+ * (example : %{label})
+ * #3 the info key translated to the current local (example label in dutch =
+ * Betriebsmittelkennzeichen)
  */
 namespace QETInformation
 {
@@ -161,6 +164,12 @@ namespace QETInformation
 	QString elementInfoToVar(const QString &info);
 
 	QRegularExpression numericInfoPattern();
+	class NumericInfoValidator : public QRegularExpressionValidator
+	{
+	public:
+		explicit NumericInfoValidator(QObject *parent = nullptr);
+		State validate(QString &input, int &pos) const override;
+	};
 
 	QStringList terminalElementInfoKeys();
 

sources/ui/elementinfopartwidget.cpp

@@ -47,8 +47,7 @@ ElementInfoPartWidget::ElementInfoPartWidget(
 
 	if (key_ == QETInformation::ELMT_WIDTH || key_ == QETInformation::ELMT_HEIGHT || key_ == QETInformation::ELMT_DEPTH)
 	{
-		auto *validator = new QRegularExpressionValidator(
-			QETInformation::numericInfoPattern(), ui->line_edit);
+		auto *validator = new QETInformation::NumericInfoValidator(ui->line_edit);
 		ui->line_edit->setValidator(validator);
 		ui->line_edit->setPlaceholderText(tr("ex. 80.5"));
 		ui->line_edit->setToolTip(tr("Nombre décimal avec un point comme séparateur (ex. 80.5)"));
@@ -78,6 +77,15 @@ QString ElementInfoPartWidget::text() const
 	return (ui->line_edit->text());
 }
 
+/**
+	@brief ElementInfoPartWidget::hasAcceptableInput
+	@return whether the line edit's current text satisfies its validator
+*/
+bool ElementInfoPartWidget::hasAcceptableInput() const
+{
+	return ui->line_edit->hasAcceptableInput();
+}
+
 /**
 	@brief ElementInfoPartWidget::setText
 	Set text to line edit

sources/ui/elementinfopartwidget.h

@@ -41,9 +41,9 @@ class ElementInfoPartWidget : public QWidget
 			QWidget *parent = nullptr);
 		~ElementInfoPartWidget() override;
 
-		QString key () const
-{return key_;}
+		QString key () const {return key_;}
 		QString text () const;
+		bool hasAcceptableInput() const;
 		void setText (const QString &);
 		void setPlaceHolderText (const QString &text);
 		void setFocusTolineEdit();

sources/ui/elementinfowidget.cpp

@@ -387,6 +387,9 @@ DiagramContext ElementInfoWidget::currentInfo() const
 
 	for (const auto &eipw : std::as_const(m_eipw_list))
 	{
+		if (!eipw->hasAcceptableInput())
+			continue;
+
 		//add value only if they're something to store
 		if (!eipw->text().isEmpty())
 		{