added regex help link

src/widgets/helper/EditableModelView.cpp

@@ -22,10 +22,10 @@ EditableModelView::EditableModelView(QAbstractTableModel *model)
     // create layout
     QVBoxLayout *vbox = new QVBoxLayout(this);
     vbox->setMargin(0);
-    vbox->addWidget(this->tableView_);
 
     // create button layout
     QHBoxLayout *buttons = new QHBoxLayout(this);
+    this->buttons_ = buttons;
     vbox->addLayout(buttons);
 
     // add
@@ -46,6 +46,11 @@ EditableModelView::EditableModelView(QAbstractTableModel *model)
         }
     });
 
+    buttons->addStretch();
+
+    // add tableview
+    vbox->addWidget(this->tableView_);
+
     // finish button layout
     buttons->addStretch(1);
 }
@@ -75,4 +80,18 @@ QAbstractTableModel *EditableModelView::getModel()
     return this->model_;
 }
 
+void EditableModelView::addCustomButton(QWidget *widget)
+{
+    this->buttons_->addWidget(widget);
+}
+
+void EditableModelView::addRegexHelpLink()
+{
+    auto regexHelpLabel =
+        new QLabel("<a href='https://chatterino.com/help/regex'><span "
+                   "style='color:#99f'>regex info</span></a>");
+    regexHelpLabel->setOpenExternalLinks(true);
+    this->addCustomButton(regexHelpLabel);
+}
+
 }  // namespace chatterino