IMG_TileInetBuf.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * NAME:        IMG library internet socket interface (C++)
 *
 * COMMENTS:    This provides a shared memory interface for read/write
 *              of tiles generated by Mantra.  Mantra will write to
 *              the buffer and flag it as readable.  Until the buffer
 *              has been read, the buffer is flagged as "non-writable".
 */

#ifndef __IMG_TileInetBuf_h__
#define __IMG_TileInetBuf_h__

#include "IMG_API.h"
#include "IMG_TileBuffer.h"
#include <UT/UT_NetSocket.h>
#include <UT/UT_NonCopyable.h>
#include <UT/UT_SysClone.h>

class UT_String;

class IMG_API IMG_TileInetBuf : public IMG_TileBuffer
{
public:
      IMG_TileInetBuf( char *host = NULL, UT_NetSocket *theServer = NULL,
                      int port = 0 );

     ~IMG_TileInetBuf() override;

     UT_NON_COPYABLE(IMG_TileInetBuf)

    int                  getTileWidth() const override { return myTW; }
    int                  getTileHeight() const override { return myTH; }

    void                 setQuitFlag(int val=1) override;
    int                  getQuitFlag() const override;

    void                 setMouseXY(int x, int y) override
                         { myMX = x; myMY = y; };
    void                 getMouseXY(int &x, int &y) const override
                         { x = myMX; y = myMY; };

    int                  canWriteTile() const override;
    int                  canReadTile() const override;

    void                 writeTile(int xl, int xr, int yb, int yt,
                                   const void *data) override;
    void                 readTile(IMG_Raster &rp, int *coords=0) override;
    void                 getKeyString( char *str ) override;

    int                  getPort()
                         {
                             return myInetSocket ? myInetSocket->getPort() : 0;
                         }
    void                 getStartupCommand( UT_String &cmd );
    void                 sendStartupCommand( int pid, int x, int y,
                                             int w, int h );

    int                  promptRetry();

    static int           getServerPort();

protected:
    void                 setTileSize(int w, int h) override
                         {
                             myTW = w; myTH = h;
                         }
    
private:
    int                  myTW, myTH, myQuitFlag;
    int                  myMX, myMY;
    int                  myTotalData, myDataSoFar;
    UT_NetSocket        *myInetSocket;
};

#endif