implement ui

src/ui/SelectedBuildingPanel.h

@@ -0,0 +1,51 @@
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include <QWidget>
+
+#include "EntityId.h"
+#include "GameConfig.h"
+
+class Simulation;
+class QLabel;
+class QComboBox;
+class QPushButton;
+class QVBoxLayout;
+
+class SelectedBuildingPanel : public QWidget
+{
+    Q_OBJECT
+
+public:
+    SelectedBuildingPanel(Simulation* sim, const GameConfig* config,
+                          QWidget* parent = nullptr);
+
+public slots:
+    void onSelectionChanged(const std::vector<EntityId>& ids);
+
+private slots:
+    void onRecipeChanged(int comboIndex);
+    void onClearBelt();
+
+private:
+    void rebuild();
+    void clearContent();
+    void buildEmpty();
+    void buildSingle(EntityId id);
+    void buildMulti(const std::vector<EntityId>& ids);
+
+    Simulation*        m_sim;
+    const GameConfig*  m_config;
+    std::vector<EntityId> m_selection;
+
+    QVBoxLayout* m_layout;
+    QLabel*      m_titleLabel;
+    QComboBox*   m_recipeCombo;
+    QPushButton* m_clearBeltBtn;
+    QLabel*      m_buffersLabel;
+
+    EntityId     m_singleId;
+    std::string  m_currentRecipeId;
+};