map.c

在ｅｃｏｓ 下mingui 的移植开发

// $Id: map.c,v 1.2 2000/06/19 01:54:15 weiym Exp $
//
// Mapping operations of GDI
//
// Copyright (C) 2000, Wei Yongming.
//
// Current maintainer: Wei Yongming.

/*
**  This library is free software; you can redistribute it and/or
**  modify it under the terms of the GNU Library General Public
**  License as published by the Free Software Foundation; either
**  version 2 of the License, or (at your option) any later version.
**
**  This library is distributed in the hope that it will be useful,
**  but WITHOUT ANY WARRANTY; without even the implied warranty of
**  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
**  Library General Public License for more details.
**
**  You should have received a copy of the GNU Library General Public
**  License along with this library; if not, write to the Free
**  Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
**  MA 02111-1307, USA
*/

// Create date: 2000/06/12, derived from original gdi.c
//
// Modify records:
//
//  Who             When        Where       For What                Status
//-----------------------------------------------------------------------------
//
// TODO:
// 


#include <pthread.h>
#include <semaphore.h>

#include "common.h"
#include "gdi.h"
#include "window.h"
#include "cliprect.h"
#include "gal.h"
#include "internals.h"
#include "dc.h"

#ifndef lint
static char fileid[] = "$Id: map.c,v 1.2 2000/06/19 01:54:15 weiym Exp $";
#endif

extern pthread_mutex_t gdilock;

/****************************** Mapping support ******************************/
int GUIAPI GetMapMode(HDC hdc)
{
    PDC pdc;
    int mode;

    pthread_mutex_lock (&gdilock);
    pdc = dc_HDC2PDC (hdc);
    mode = pdc->mapmode;
    pthread_mutex_unlock (&gdilock);

    return mode;
}

void GUIAPI GetViewportExt(HDC hdc, POINT* pPt)
{
    PDC pdc;

    pthread_mutex_lock (&gdilock);
    pdc = dc_HDC2PDC(hdc);
    *pPt = pdc->ViewExtent;
    pthread_mutex_unlock(&gdilock);
}

void GUIAPI GetViewportOrg(HDC hdc, POINT* pPt)
{
    PDC pdc;

    pthread_mutex_lock (&gdilock);
    pdc = dc_HDC2PDC(hdc);
    *pPt = pdc->ViewOrig;
    pthread_mutex_unlock(&gdilock);
}

void GUIAPI GetWindowExt(HDC hdc, POINT* pPt)
{
    PDC pdc;

    pthread_mutex_lock (&gdilock);
    pdc = dc_HDC2PDC(hdc);
    *pPt = pdc->WindowExtent;
    pthread_mutex_unlock(&gdilock);
}

void GUIAPI GetWindowOrg(HDC hdc, POINT* pPt)
{
    PDC pdc;

    pthread_mutex_lock (&gdilock);
    pdc = dc_HDC2PDC(hdc);
    *pPt = pdc->WindowExtent;
    pthread_mutex_unlock(&gdilock);
}

void GUIAPI SetMapMode(HDC hdc, int mapmode)
{
    PDC pdc;

    if( hdc == 0 ) return;

    pthread_mutex_lock (&gdilock);
    pdc = dc_HDC2PDC(hdc);
    pdc->mapmode = mapmode;
    pthread_mutex_unlock(&gdilock);
}

void GUIAPI SetViewportExt(HDC hdc, POINT* pPt)
{
    PDC pdc;

    if( hdc == 0 ) return;

    pthread_mutex_lock (&gdilock);
    pdc = dc_HDC2PDC(hdc);
    pdc->ViewExtent = *pPt;
    pthread_mutex_unlock(&gdilock);
}

void GUIAPI SetViewportOrg(HDC hdc, POINT* pPt)
{
    PDC pdc;

    if( hdc == 0 ) return;

    pthread_mutex_lock (&gdilock);
    pdc = dc_HDC2PDC(hdc);
    pdc->ViewOrig = *pPt;
    pthread_mutex_unlock(&gdilock);
}

void GUIAPI SetWindowExt(HDC hdc, POINT* pPt)
{
    PDC pdc;

    if( hdc == 0 ) return;

    pthread_mutex_lock (&gdilock);
    pdc = dc_HDC2PDC(hdc);
    pdc->WindowExtent = *pPt;
    pthread_mutex_unlock(&gdilock);
}

void GUIAPI SetWindowOrg(HDC hdc, POINT* pPt)
{
    PDC pdc;

    if( hdc == 0 ) return;

    pthread_mutex_lock (&gdilock);
    pdc = dc_HDC2PDC(hdc);
    pdc->WindowOrig = *pPt;
    pthread_mutex_unlock(&gdilock);
}