/*!
 *
 * \mainpage TikZiT Documentation
 *
 * This is the source code documentation for TikZiT. The global entry point
 * for the TikZiT executable is in main.cpp, whereas the class Tikzit maintains
 * the global application state.
 *
 * The TikZ parser is implemented in flex/bison in the files tikzlexer.l and tikzparser.y.
 *
 * Most of the interesting code for handling user input is in the class TikzScene. Anything
 * that makes a change to the tikz file should be implemented as a QUndoCommand. Currently,
 * these are all in undocommands.h.
 *
 * I've basically been adding documentation as I go. Other bits and pieces can be accessed
 * by searching, or via the class list/class hierarchy links in the menu above.
 *
 */

/*!
 *
 * \class Tikzit
 *
 * Tikzit is the top-level class which maintains the global application state. For convenience,
 * it also holds an instance of the main menu for macOS (or Ubuntu unity) style GUIs which only
 * have one, application-level menu.
 *
 */

#ifndef TIKZIT_H
#define TIKZIT_H

#include "mainwindow.h"
#include "mainmenu.h"
#include "ui_mainmenu.h"

#include "toolpalette.h"
#include "propertypalette.h"
#include "stylepalette.h"
#include "nodestyle.h"
#include "tikzstyles.h"

#include <QObject>
#include <QVector>
#include <QPointF>
#include <QMenuBar>
#include <QMainWindow>
#include <QFont>

// Number of pixels between (0,0) and (1,0) at 100% zoom level. This should be
// divisible by 8 to avoid rounding errors with e.g. grid-snapping.
#define GLOBAL_SCALE 80
#define GLOBAL_SCALEF 80.0f

inline QPointF toScreen(QPointF src)
{ src.setY(-src.y()); src *= GLOBAL_SCALEF; return src; }

inline QPointF fromScreen(QPointF src)
{ src.setY(-src.y()); src /= GLOBAL_SCALEF; return src; }


class Tikzit : public QObject {
    Q_OBJECT
public:
    Tikzit();
    ToolPalette *toolPalette() const;
    PropertyPalette *propertyPalette() const;

    MainWindow *activeWindow() const;
    void setActiveWindow(MainWindow *activeWindow);
    void removeWindow(MainWindow *w);

    static QFont LABEL_FONT;
//    Ui::MainMenu *_mainMenuUi;
//    QMenuBar *_mainMenu;

    void newDoc();
    void open();
    void quit();
    void init();

    void openTikzStyles();
    TikzStyles *styles() const;
    QString styleFile() const;

private:
    //    void createMenu();
    void loadStyles(QString fileName);

    MainMenu *_mainMenu;
    ToolPalette *_toolPalette;
    PropertyPalette *_propertyPalette;
    StylePalette *_stylePalette;
    QVector<MainWindow*> _windows;
    MainWindow *_activeWindow;
    TikzStyles *_styles;
    QString _styleFile;

};

extern Tikzit *tikzit;

#endif // TIKZIT_H