create and wire up TallyWidget

cockatrice/src/game/tally/tally_widget.cpp

@@ -0,0 +1,76 @@
+#include "tally_widget.h"
+
+#include <QBoxLayout>
+#include <QLabel>
+#include <QScrollArea>
+
+TallyWidget::TallyWidget(QWidget *parent, TallyManager *tallyManager) : QWidget(parent), tallyManager(tallyManager)
+{
+    auto layout = new QVBoxLayout(this);
+    layout->setContentsMargins(0, 0, 0, 0);
+    layout->setAlignment(Qt::AlignCenter);
+    setLayout(layout);
+
+    auto scrollArea = new QScrollArea(this);
+    scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    scrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
+
+    layout->addWidget(scrollArea);
+
+    auto gridLayoutWidget = new QWidget(scrollArea);
+    gridLayout = new QGridLayout(gridLayoutWidget);
+    gridLayout->setAlignment(Qt::AlignLeft | Qt::AlignTop);
+
+    resetGridLayout({TallyManager::TOTAL_POWER, TallyManager::TOTAL_MANA_VALUE});
+}
+
+void TallyWidget::resetGridLayout(QList<TallyManager::EntryType> entryTypes)
+{
+    // clear all existing
+    while (auto item = gridLayout->takeAt(0)) {
+        item->widget()->deleteLater();
+        delete item;
+    }
+
+    // create all labels
+    for (auto entryType : entryTypes) {
+        auto textLabel = createTextLabel(entryType);
+        auto valueLabel = createValueLabel(entryType);
+
+        int row = gridLayout->rowCount();
+        gridLayout->addWidget(textLabel, row, 0);
+        gridLayout->addWidget(valueLabel, row, 1);
+    }
+}
+
+QLabel *TallyWidget::createTextLabel(TallyManager::EntryType entryType)
+{
+    auto label = new QLabel;
+
+    auto updateLabel = [label, entryType](const QMap<TallyManager::EntryType, TallyResult> &results) {
+        QString text = results.value(entryType).text;
+        label->setText(text);
+    };
+
+    updateLabel(tallyManager->getAllResults());
+
+    connect(tallyManager, &TallyManager::tallyChanged, label, updateLabel);
+
+    return label;
+}
+
+QLabel *TallyWidget::createValueLabel(TallyManager::EntryType entryType)
+{
+    auto label = new QLabel;
+
+    auto updateLabel = [label, entryType](const QMap<TallyManager::EntryType, TallyResult> &results) {
+        int value = results.value(entryType).value;
+        label->setText(QString::number(value));
+    };
+
+    updateLabel(tallyManager->getAllResults());
+
+    connect(tallyManager, &TallyManager::tallyChanged, label, updateLabel);
+
+    return label;
+}