ModelSelector.h

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#ifndef MODELSELECTOR_H_
#define MODELSELECTOR_H_

#include <gtk/gtk.h>
#include <string>
#include "math/matrix.h"
#include "igl.h"
#include "imodel.h"
#include "../common/ModelPreview.h"

namespace ui
{

    struct ModelAndSkin
    {
            // Model and skin strings
            std::string model;
            int skin;

            // Constructor
            ModelAndSkin (const std::string& m, const int& s) :
                model(m), skin(s)
            {
            }
    };

    class ModelSelector
    {
        private:

            // Main dialog widget
            GtkWidget* _widget;

            // Model preview widget
            ModelPreview _modelPreview;

            // Tree store containing model names
            GtkTreeStore* _treeStore;

            // Currently-selected row in the tree store
            GtkTreeSelection* _selection;

            // List store to contain attributes and values for the selected model
            GtkListStore* _infoStore;

            // Last selected model, which will be returned by showAndBlock() once the
            // recursive main loop exits.
            std::string _lastModel;
            int _lastSkin;

        private:

            // Private constructor, creates GTK widgets
            ModelSelector ();

            // Show the dialog, called internally by chooseModel(). Return the selected model path
            ModelAndSkin showAndBlock ();

            // Helper function to construct the TreeView
            GtkWidget* createTreeView ();
            GtkWidget* createButtons ();
            GtkWidget* createPreviewAndInfoPanel ();

            // Initialise the GL widget, to avoid doing this every frame
            void initialisePreview ();

            // Update the info table with information from the currently-selected model
            // update the displayed model.
            void updateSelected ();

            // Return the value from the selected column, or an empty string if nothing selected
            std::string getSelectedString (gint col);
            // Return the value from the selected column, or -1 if nothing was selected
            int getSelectedInteger (gint col);

            /* GTK CALLBACKS */
            static void callbackHide (GtkWidget*, GdkEvent*, ModelSelector*);
            static void callbackSelChanged (GtkWidget*, ModelSelector*);
            static void callbackOK (GtkWidget*, ModelSelector*);
            static void callbackCancel (GtkWidget*, ModelSelector*);

        public:

            static ModelAndSkin chooseModel ();
    };
}

#endif /*MODELSELECTOR_H_*/