Improve Register page (#346)

* add username error label, add word wrapping for error labels

* make lint

* last commits

* remove font, and remove some lambdas

* add QRegularExpression for regex

* improve review things

* add isModified() for checkFields()

* add check isModified() for  all fields in checkFields

* Update src/RegisterPage.cpp

Co-authored-by: DeepBlueV7.X <nicolas.werner@hotmail.de>

* remove emit call for showError

Co-authored-by: DeepBlueV7.X <nicolas.werner@hotmail.de>

1 files changed, 19 insertions, 6 deletions

diff --git a/src/ui/TextField.cpp b/src/ui/TextField.cpp

index 941d00a3..055fe73b 100644
--- a/src/ui/TextField.cpp
+++ b/src/ui/TextField.cpp
@@ -6,6 +6,7 @@
 #include <QPaintEvent>
 #include <QPainter>
 #include <QPropertyAnimation>
+#include <QRegularExpressionValidator>
 
 TextField::TextField(QWidget *parent)
   : QLineEdit(parent)
@@ -70,18 +71,24 @@ TextField::hasLabel() const
         return show_label_;
 }
 
-bool
-TextField::isValid() const
-{
-        return is_valid_;
-}
-
 void
 TextField::setValid(bool valid)
 {
         is_valid_ = valid;
 }
 
+bool
+TextField::isValid() const
+{
+        QString s = text();
+        int pos   = 0;
+        if (regexp_.pattern().isEmpty()) {
+                return is_valid_;
+        }
+        QRegularExpressionValidator v(QRegularExpression(regexp_), 0);
+        return v.validate(s, pos) == QValidator::Acceptable;
+}
+
 void
 TextField::setLabelFontSize(qreal size)
 {
@@ -156,6 +163,12 @@ TextField::setUnderlineColor(const QColor &color)
         update();
 }
 
+void
+TextField::setRegexp(const QRegularExpression &regexp)
+{
+        regexp_ = regexp;
+}
+
 QColor
 TextField::underlineColor() const
 {