added checkbox to disable password storage

cockatrice/src/dlg_connect.cpp

 #include <QSettings>
 #include <QLabel>
 #include <QPushButton>
+#include <QCheckBox>
 #include <QGridLayout>
 #include <QHBoxLayout>
 #include "dlg_connect.h"
@@ -27,6 +28,9 @@ DlgConnect::DlgConnect(QWidget *parent)
 	passwordEdit = new QLineEdit(settings.value("password").toString());
 	passwordLabel->setBuddy(passwordEdit);
 	passwordEdit->setEchoMode(QLineEdit::Password);
+	
+	savePasswordCheckBox = new QCheckBox(tr("&Save password"));
+	savePasswordCheckBox->setChecked(settings.value("save_password", 1).toInt());
 
 	okButton = new QPushButton(tr("&OK"));
 	okButton->setDefault(true);
@@ -41,6 +45,7 @@ DlgConnect::DlgConnect(QWidget *parent)
 	grid->addWidget(playernameEdit, 2, 1);
 	grid->addWidget(passwordLabel, 3, 0);
 	grid->addWidget(passwordEdit, 3, 1);
+	grid->addWidget(savePasswordCheckBox, 4, 0, 1, 2);
 
 	QHBoxLayout *buttonLayout = new QHBoxLayout;
 	buttonLayout->addStretch();
@@ -67,7 +72,8 @@ void DlgConnect::actOk()
 	settings.setValue("hostname", hostEdit->text());
 	settings.setValue("port", portEdit->text());
 	settings.setValue("playername", playernameEdit->text());
-	settings.setValue("password", passwordEdit->text());
+	settings.setValue("password", savePasswordCheckBox->isChecked() ? passwordEdit->text() : QString());
+	settings.setValue("save_password", savePasswordCheckBox->isChecked() ? 1 : 0);
 	settings.endGroup();
 
 	accept();

cockatrice/src/dlg_connect.h

@@ -6,6 +6,7 @@
 
 class QLabel;
 class QPushButton;
+class QCheckBox;
 
 class DlgConnect : public QDialog {
 	Q_OBJECT
@@ -20,6 +21,7 @@ private slots:
 private:
 	QLabel *hostLabel, *portLabel, *playernameLabel, *passwordLabel;
 	QLineEdit *hostEdit, *portEdit, *playernameEdit, *passwordEdit;
+	QCheckBox *savePasswordCheckBox;
 	QPushButton *okButton, *cancelButton;
 };