qapplication.h

#ifndef __QApplication_h
#define __QApplication_h

#include "qwidget.h"
#include "LgiOsDefs.h"
#include "GContainers.h"
#include "GSemaphore.h"

#define XA_WmDeleteWindow   XAtom[0]
#define XA_WmProtocols      XAtom[1]
#define XA_Clipboard        XAtom[2]
#define XA_XdndEnter        XAtom[3]
#define XA_XdndPosition     XAtom[4]
#define XA_XdndStatus       XAtom[5]
#define XA_XdndLeave        XAtom[6]
#define XA_XdndDrop         XAtom[7]
#define XA_XdndFinished     XAtom[8]
#define XA_XdndSelection    XAtom[9]
#define XA_NetWmIcon        XAtom[10]
#define XA_Cardinal         XAtom[11]
#define XA_Max              20      // leave room for growth

class QApplication : public QEventSink, public GSemaphore
{
    friend class QObject;
    friend class QPopup;
    friend class QWidgetPrivate;
    friend class QEvent;
    friend class QWidget;
    friend class QWindow;

    static QApplication *_App;
    static QWidget *WantsFocus;
    class QApplicationPrivate *d;

    Display *Dsp;
    QList<QWidget> Delete;

    // Atoms
    Atom XAtom[XA_Max];
    
    // Clipboard data..
    char *ClipText;
    Pixmap ClipImage;
    QEventSink *SelectionSink;
    
    // Dnd
    List<char> DndTypes, DndAccepted;
    class GDragDropTarget *DndTarget;
    
    // Methods  
    void OnDeleteWidget(QWidget *w);
    void OnEvent(XEvent *Event);
    QWidget *GetKeyTarget();

public:
    QApplication(int args, char **arg);
    virtual ~QApplication();

    // Api
    bool IsOk();
    QWidget *desktop();
    int exec();
    void onEvent(XEvent &Event);
    void processEvents();
    void exit(int code);
    void enter_loop();
    void exit_loop();
    void OnTabKey(QWidget *w, int Dir);
    uint64 GetLastButtonPressTime(int Button, int x, int y);
    OsThreadId GetGuiThread();

    // Focus
    QWidget *GetFocus();
    QWidget *GetFocusWindow();
    void SetFocus(QWidget *q);

    // Clipboard
    Atom GetClipboard() { return XA_Clipboard; }
    void EmptyClip();
    void SetClipText(QWidget *w, char *s);
    void SetClipImage(QWidget *w, class GSurface *pDC);
    void SetSelectionSink(QEventSink *s);
    bool GetSelection(Window w, Atom Selection, Atom Format, uchar *&Data, ulong &Len);
    
    // Static members
    static void postEvent(QWidget *o, QEvent *e);
    static int wheelScrollLines();
    static QApplication *GetApp() { return _App; }
};

#endif

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