Only show the password on explicit user request

src/GUI/authenticationwidget.cpp

@@ -4,7 +4,7 @@
 AuthenticationWidget::AuthenticationWidget(QWidget *parent) : QWidget(parent)
 {
 	_username = new QLineEdit();
-	_password = new QLineEdit();
+	_password = new PasswordEdit();
 
 	QFormLayout *layout = new QFormLayout();
 	layout->addRow(tr("Username:"), _username);

src/GUI/authenticationwidget.h

@@ -3,6 +3,7 @@
 
 #include <QWidget>
 #include <QLineEdit>
+#include "passwordedit.h"
 
 class AuthenticationWidget : public QWidget
 {
@@ -18,7 +19,8 @@ public:
 	void setPassword(const QString &password) {_password->setText(password);}
 
 private:
-	QLineEdit *_username, *_password;
+	QLineEdit *_username;
+	PasswordEdit *_password;
 };
 
 #endif // AUTHENTICATIONWIDGET_H

src/GUI/icons.h

@@ -28,4 +28,7 @@
 #define MAPS_ICON         ":/applications-internet_32.png"
 #define DEM_ICON          ":/view-grid.png"
 
+#define SHOW_PWD_ICON     ":/document-encrypt.png"
+#define HIDE_PWD_ICON     ":/document-decrypt.png"
+
 #endif /* ICONS_H */

src/GUI/passwordedit.cpp

@@ -0,0 +1,24 @@
+#include <QAction>
+#include "icons.h"
+#include "passwordedit.h"
+
+PasswordEdit::PasswordEdit(QWidget *parent) : QLineEdit(parent)
+{
+	_show = false;
+	_action = addAction(QIcon(SHOW_PWD_ICON), QLineEdit::TrailingPosition);
+	connect(_action, &QAction::triggered, this, &PasswordEdit::showPassword);
+	setEchoMode(QLineEdit::Password);
+}
+
+void PasswordEdit::showPassword()
+{
+	if (_show) {
+		_action->setIcon(QIcon(SHOW_PWD_ICON));
+		setEchoMode(QLineEdit::Password);
+		_show = false;
+	} else {
+		_action->setIcon(QIcon(HIDE_PWD_ICON));
+		setEchoMode(QLineEdit::Normal);
+		_show = true;
+	}
+}

src/GUI/passwordedit.h

@@ -0,0 +1,21 @@
+#ifndef PASSWORDEDIT_H
+#define PASSWORDEDIT_H
+
+#include <QLineEdit>
+
+class PasswordEdit : public QLineEdit
+{
+	Q_OBJECT
+
+public:
+	PasswordEdit(QWidget *parent = 0);
+
+private slots:
+	void showPassword();
+
+private:
+	QAction *_action;
+	bool _show;
+};
+
+#endif // PASSWORDEDIT_H