[sgs-cppbc] UI control binding code

#ifndef __SGS_UI_CONTROL__
#define __SGS_UI_CONTROL__


#include <sgs_cppbc.h>

#include <vector>


#define EV_Paint      1
#define EV_Layout     2
#define EV_KeyDown    10
#define EV_KeyUp      11
#define EV_Char       12
#define EV_ButtonDown 20
#define EV_ButtonUp   21
#define EV_MouseMove  22
#define EV_Attach     30
#define EV_Detach     31
#define EV_HitTest    32


struct UIEvent
{
    SGS_OBJECT;

    UIEvent();

    SGS_PROPERTY int type;
    SGS_PROPERTY int key;
    SGS_PROPERTY int button;
    SGS_PROPERTY int uchar;
    SGS_PROPERTY int x;
    SGS_PROPERTY int y;
    SGS_PROPERTY int rx;
    SGS_PROPERTY int ry;
};


struct UIControl;
struct UIFrame
{
    typedef sgsHandle< UIFrame > Handle;

    SGS_OBJECT;

    UIFrame();

    SGS_METHOD void event( UIEvent* e );
    SGS_METHOD void render();

    SGS_IFUNC(SGS_OP_GCMARK) int sgs_gcmark( SGS_CTX, sgs_VarObj* obj, int );

    SGS_PROPERTY sgsVariable render_image;
    SGS_PROPERTY sgsVariable render_text;
    SGS_PROPERTY sgsVariable ui_event;
    SGS_PROPERTY float x;
    SGS_PROPERTY float y;
    SGS_PROPERTY float width;
    SGS_PROPERTY float height;
    SGS_PROPERTY sgsHandle< UIControl > root;
};


struct UIControl
{
    typedef sgsHandle< UIControl > Handle;
    typedef std::vector< Handle > HandleArray;

    SGS_OBJECT;

    UIControl();

    int niEvent( UIEvent* event );
    void niRender();
    void updateLayout();

    SGS_METHOD bool addChild( UIControl::Handle ch );
    SGS_METHOD bool removeChild( UIControl::Handle ch );
    SGS_METHOD UIControl::Handle findChild( std::string name );
    SGS_METHOD sgsVariable children();
    SGS_METHOD void sortChildren();

    SGS_IFUNC(SGS_OP_GCMARK) int sgs_gcmark( SGS_CTX, sgs_VarObj* obj, int );

    SGS_PROPERTY std::string name;
    SGS_PROPERTY std::string caption;
    SGS_PROPERTY_FUNC( READ WRITE WRITE_CALLBACK updateLayout ) float x;
    SGS_PROPERTY_FUNC( READ WRITE WRITE_CALLBACK updateLayout ) float y;
    SGS_PROPERTY_FUNC( READ WRITE WRITE_CALLBACK updateLayout ) float width;
    SGS_PROPERTY_FUNC( READ WRITE WRITE_CALLBACK updateLayout ) float height;
    SGS_PROPERTY_FUNC( READ WRITE WRITE_CALLBACK updateLayout ) float q0x;
    SGS_PROPERTY_FUNC( READ WRITE WRITE_CALLBACK updateLayout ) float q0y;
    SGS_PROPERTY_FUNC( READ WRITE WRITE_CALLBACK updateLayout ) float q1x;
    SGS_PROPERTY_FUNC( READ WRITE WRITE_CALLBACK updateLayout ) float q1y;
    SGS_PROPERTY_FUNC( READ WRITE WRITE_CALLBACK sortChildren ) int index;
    SGS_PROPERTY std::string type;
    SGS_PROPERTY READ Handle parent;
    SGS_PROPERTY READ UIFrame::Handle frame;
    SGS_PROPERTY sgsVariable callback;
    SGS_PROPERTY sgsVariable renderfunc;

    SGS_PROPERTY READ float rx0;
    SGS_PROPERTY READ float rx1;
    SGS_PROPERTY READ float ry0;
    SGS_PROPERTY READ float ry1;

    HandleArray m_children;
    HandleArray m_sorted;
};



inline void UI_PushEvent( SGS_CTX, UIEvent* e ){ sgs_PushClassFrom( C, e ); }


#endif // __SGS_UI_CONTROL__