TeXView.hh

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#pragma once
 
#include <gtkmm/eventbox.h>
#include <gtkmm/box.h>
#include <gtkmm/drawingarea.h>
#if GTKMM_MINOR_VERSION>=10
#include <gtkmm/revealer.h>
#endif
 
#include "DataCell.hh"
#include "../common/TeXEngine.hh"
 
namespace cadabra {
 
 
    class TeXView : public Gtk::EventBox {
        public:
            TeXView(TeXEngine&, DTree::iterator, int hmargin=25);
            virtual ~TeXView();
 
            std::shared_ptr<TeXEngine::TeXRequest> content;
 
            sigc::signal1<bool, DTree::iterator>   show_hide_requested;
 
            DTree::iterator           datacell;
#if GTKMM_MINOR_VERSION>=10
            Gtk::Revealer             rbox;
#endif
            Gtk::VBox                 vbox;
            Gtk::HBox                 hbox;
 
            class TeXArea : public Gtk::DrawingArea {
                public:
                    virtual bool on_draw(const Cairo::RefPtr<Cairo::Context>& cr) override;
 
 
                    void update_image(std::shared_ptr<TeXEngine::TeXRequest>, double scale);
 
 
                    Glib::RefPtr<Gdk::Pixbuf> pixbuf;
                    double                    scale_;
                };
 
            TeXArea                   image;
 
            void update_image();
 
 
            void dim(bool);
 
            sigc::signal1<bool, std::string> tex_error;
 
        protected:
            virtual bool on_button_release_event(GdkEventButton *) override;
            virtual void on_show() override;
            //          virtual bool on_configure_event(GdkEventConfigure *) override;
 
            void convert();
 
        private:
            TeXEngine& engine;
        };
 
    }