tab reorg phase 1: split main gui into "overview" and "history"

src/qt/overviewpage.cpp

@@ -0,0 +1,32 @@
+#include "overviewpage.h"
+#include "ui_overviewpage.h"
+
+#include "guiutil.h"
+
+OverviewPage::OverviewPage(QWidget *parent) :
+    QWidget(parent),
+    ui(new Ui::OverviewPage)
+{
+    ui->setupUi(this);
+
+    // Balance: <balance>
+    ui->labelBalance->setFont(QFont("Monospace", -1, QFont::Bold));
+    ui->labelBalance->setToolTip(tr("Your current balance"));
+    ui->labelBalance->setTextInteractionFlags(Qt::TextSelectableByMouse|Qt::TextSelectableByKeyboard);
+
+    // Overview page should show:
+    // Balance
+    // Unconfirmed balance
+    // Last received transaction(s)
+    // Last sent transaction(s)
+}
+
+OverviewPage::~OverviewPage()
+{
+    delete ui;
+}
+
+void OverviewPage::setBalance(qint64 balance)
+{
+    ui->labelBalance->setText(GUIUtil::formatMoney(balance) + QString(" BTC"));
+}