Add CreateWalletDialog to create wallets from the GUI

Co-authored-by: João Barbosa <joao.paulo.barbosa@gmail.com>

src/qt/createwalletdialog.cpp

@@ -0,0 +1,61 @@
+// Copyright (c) 2019 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#if defined(HAVE_CONFIG_H)
+#include <config/bitcoin-config.h>
+#endif
+
+#include <qt/createwalletdialog.h>
+#include <qt/forms/ui_createwalletdialog.h>
+
+#include <QPushButton>
+
+CreateWalletDialog::CreateWalletDialog(QWidget* parent) :
+    QDialog(parent),
+    ui(new Ui::CreateWalletDialog)
+{
+    ui->setupUi(this);
+    ui->buttonBox->button(QDialogButtonBox::Ok)->setText("Create");
+    ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(false);
+    ui->wallet_name_line_edit->setFocus(Qt::ActiveWindowFocusReason);
+
+    connect(ui->wallet_name_line_edit, &QLineEdit::textEdited, [this](const QString& text) {
+        ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(!text.isEmpty());
+    });
+
+    connect(ui->encrypt_wallet_checkbox, &QCheckBox::toggled, [this](bool checked) {
+        // Disable disable_privkeys_checkbox when encrypt is set to true, enable it when encrypt is false
+        ui->disable_privkeys_checkbox->setEnabled(!checked);
+
+        // When the disable_privkeys_checkbox is disabled, uncheck it.
+        if (!ui->disable_privkeys_checkbox->isEnabled()) {
+            ui->disable_privkeys_checkbox->setChecked(false);
+        }
+    });
+}
+
+CreateWalletDialog::~CreateWalletDialog()
+{
+    delete ui;
+}
+
+QString CreateWalletDialog::walletName() const
+{
+    return ui->wallet_name_line_edit->text();
+}
+
+bool CreateWalletDialog::encrypt() const
+{
+    return ui->encrypt_wallet_checkbox->isChecked();
+}
+
+bool CreateWalletDialog::disablePrivateKeys() const
+{
+    return ui->disable_privkeys_checkbox->isChecked();
+}
+
+bool CreateWalletDialog::blank() const
+{
+    return ui->blank_wallet_checkbox->isChecked();
+}