Sweden-Number/windows/mapping.c

409 lines
11 KiB
C

/*
* GDI mapping mode functions
*
* Copyright 1993 Alexandre Julliard
*/
static char Copyright[] = "Copyright Alexandre Julliard, 1993";
#include "gdi.h"
/***********************************************************************
* MAPPING_FixIsotropic
*
* Fix viewport extensions for isotropic mode.
*/
void MAPPING_FixIsotropic( DC * dc )
{
double xdim = (double)dc->w.VportExtX * dc->w.devCaps->horzSize /
(dc->w.devCaps->horzRes * dc->w.WndExtX);
double ydim = (double)dc->w.VportExtY * dc->w.devCaps->vertSize /
(dc->w.devCaps->vertRes * dc->w.WndExtY);
if (xdim > ydim)
{
dc->w.VportExtX = dc->w.VportExtX * ydim / xdim;
if (!dc->w.VportExtX) dc->w.VportExtX = 1;
}
else
{
dc->w.VportExtY = dc->w.VportExtY * xdim / ydim;
if (!dc->w.VportExtY) dc->w.VportExtY = 1;
}
}
/***********************************************************************
* DPtoLP (GDI.67)
*/
BOOL DPtoLP( HDC hdc, LPPOINT points, int count )
{
POINT * pt;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
for (pt = points; count > 0; pt++, count--)
{
pt->x = XDPTOLP( dc, pt->x );
pt->y = YDPTOLP( dc, pt->y );
}
return TRUE;
}
/***********************************************************************
* LPtoDP (GDI.99)
*/
BOOL LPtoDP( HDC hdc, LPPOINT points, int count )
{
POINT * pt;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
for (pt = points; count > 0; pt++, count--)
{
pt->x = XLPTODP( dc, pt->x );
pt->y = YLPTODP( dc, pt->y );
}
return TRUE;
}
/***********************************************************************
* SetMapMode (GDI.3)
*/
WORD SetMapMode( HDC hdc, WORD mode )
{
WORD prevMode;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return 0;
#ifdef DEBUG_GDI
printf( "SetMapMode: %d %d\n", hdc, mode );
#endif
prevMode = dc->w.MapMode;
switch(mode)
{
case MM_TEXT:
dc->w.WndOrgX = dc->w.WndOrgY = 0;
dc->w.VportOrgX = dc->w.VportOrgY = 0;
dc->w.WndExtX = 1;
dc->w.WndExtY = 1;
dc->w.VportExtX = 1;
dc->w.VportExtY = 1;
break;
case MM_LOMETRIC:
case MM_ISOTROPIC:
dc->w.WndOrgX = dc->w.WndOrgY = 0;
dc->w.VportOrgX = dc->w.VportOrgY = 0;
dc->w.WndExtX = dc->w.devCaps->horzSize;
dc->w.WndExtY = dc->w.devCaps->vertSize;
dc->w.VportExtX = dc->w.devCaps->horzRes / 10;
dc->w.VportExtY = dc->w.devCaps->vertRes / -10;
break;
case MM_HIMETRIC:
dc->w.WndOrgX = dc->w.WndOrgY = 0;
dc->w.VportOrgX = dc->w.VportOrgY = 0;
dc->w.WndExtX = dc->w.devCaps->horzSize * 10;
dc->w.WndExtY = dc->w.devCaps->vertSize * 10;
dc->w.VportExtX = dc->w.devCaps->horzRes / 10;
dc->w.VportExtY = dc->w.devCaps->vertRes / -10;
break;
case MM_LOENGLISH:
dc->w.WndOrgX = dc->w.WndOrgY = 0;
dc->w.VportOrgX = dc->w.VportOrgY = 0;
dc->w.WndExtX = dc->w.devCaps->horzSize;
dc->w.WndExtY = dc->w.devCaps->vertSize;
dc->w.VportExtX = (short)(254L * dc->w.devCaps->horzRes / 1000);
dc->w.VportExtY = (short)(-254L * dc->w.devCaps->vertRes / 1000);
break;
case MM_HIENGLISH:
dc->w.WndOrgX = dc->w.WndOrgY = 0;
dc->w.VportOrgX = dc->w.VportOrgY = 0;
dc->w.WndExtX = dc->w.devCaps->horzSize * 10;
dc->w.WndExtY = dc->w.devCaps->vertSize * 10;
dc->w.VportExtX = (short)(254L * dc->w.devCaps->horzRes / 1000);
dc->w.VportExtY = (short)(-254L * dc->w.devCaps->vertRes / 1000);
break;
case MM_TWIPS:
dc->w.WndOrgX = dc->w.WndOrgY = 0;
dc->w.VportOrgX = dc->w.VportOrgY = 0;
dc->w.WndExtX = (short)(144L * dc->w.devCaps->horzSize / 10);
dc->w.WndExtY = (short)(144L * dc->w.devCaps->vertSize / 10);
dc->w.VportExtX = (short)(254L * dc->w.devCaps->horzRes / 1000);
dc->w.VportExtY = (short)(-254L * dc->w.devCaps->vertRes / 1000);
break;
case MM_ANISOTROPIC:
break;
default:
return prevMode;
}
dc->w.MapMode = mode;
return prevMode;
}
/***********************************************************************
* SetViewportExt (GDI.14)
*/
DWORD SetViewportExt( HDC hdc, short x, short y )
{
SIZE size;
if (!SetViewportExtEx( hdc, x, y, &size )) return 0;
return size.cx | (size.cy << 16);
}
/***********************************************************************
* SetViewportExtEx (GDI.479)
*/
BOOL SetViewportExtEx( HDC hdc, short x, short y, LPSIZE size )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
if (size)
{
size->cx = dc->w.VportExtX;
size->cy = dc->w.VportExtY;
}
if ((dc->w.MapMode != MM_ISOTROPIC) && (dc->w.MapMode != MM_ANISOTROPIC))
return TRUE;
if (!x || !y) return FALSE;
dc->w.VportExtX = x;
dc->w.VportExtY = y;
if (dc->w.MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
return TRUE;
}
/***********************************************************************
* SetViewportOrg (GDI.13)
*/
DWORD SetViewportOrg( HDC hdc, short x, short y )
{
POINT pt;
if (!SetViewportOrgEx( hdc, x, y, &pt )) return 0;
return pt.x | (pt.y << 16);
}
/***********************************************************************
* SetViewportOrgEx (GDI.480)
*/
BOOL SetViewportOrgEx( HDC hdc, short x, short y, LPPOINT pt )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
if (pt)
{
pt->x = dc->w.VportOrgX;
pt->y = dc->w.VportOrgY;
}
dc->w.VportOrgX = x;
dc->w.VportOrgY = y;
return TRUE;
}
/***********************************************************************
* SetWindowExt (GDI.12)
*/
DWORD SetWindowExt( HDC hdc, short x, short y )
{
SIZE size;
if (!SetWindowExtEx( hdc, x, y, &size )) return 0;
return size.cx | (size.cy << 16);
}
/***********************************************************************
* SetWindowExtEx (GDI.481)
*/
BOOL SetWindowExtEx( HDC hdc, short x, short y, LPSIZE size )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
if (size)
{
size->cx = dc->w.WndExtX;
size->cy = dc->w.WndExtY;
}
if ((dc->w.MapMode != MM_ISOTROPIC) && (dc->w.MapMode != MM_ANISOTROPIC))
return TRUE;
if (!x || !y) return FALSE;
dc->w.WndExtX = x;
dc->w.WndExtY = y;
if (dc->w.MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
return TRUE;
}
/***********************************************************************
* SetWindowOrg (GDI.11)
*/
DWORD SetWindowOrg( HDC hdc, short x, short y )
{
POINT pt;
if (!SetWindowOrgEx( hdc, x, y, &pt )) return 0;
return pt.x | (pt.y << 16);
}
/***********************************************************************
* SetWindowOrgEx (GDI.482)
*/
BOOL SetWindowOrgEx( HDC hdc, short x, short y, LPPOINT pt )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
if (pt)
{
pt->x = dc->w.WndOrgX;
pt->y = dc->w.WndOrgY;
}
dc->w.WndOrgX = x;
dc->w.WndOrgY = y;
return TRUE;
}
/***********************************************************************
* OffsetViewportOrg (GDI.17)
*/
DWORD OffsetViewportOrg( HDC hdc, short x, short y )
{
POINT pt;
if (!OffsetViewportOrgEx( hdc, x, y, &pt )) return 0;
return pt.x | (pt.y << 16);
}
/***********************************************************************
* OffsetViewportOrgEx (GDI.476)
*/
BOOL OffsetViewportOrgEx( HDC hdc, short x, short y, LPPOINT pt )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
if (pt)
{
pt->x = dc->w.VportOrgX;
pt->y = dc->w.VportOrgY;
}
dc->w.VportOrgX += x;
dc->w.VportOrgY += y;
return TRUE;
}
/***********************************************************************
* OffsetWindowOrg (GDI.15)
*/
DWORD OffsetWindowOrg( HDC hdc, short x, short y )
{
POINT pt;
if (!OffsetWindowOrgEx( hdc, x, y, &pt )) return 0;
return pt.x | (pt.y << 16);
}
/***********************************************************************
* OffsetWindowOrgEx (GDI.477)
*/
BOOL OffsetWindowOrgEx( HDC hdc, short x, short y, LPPOINT pt )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
if (pt)
{
pt->x = dc->w.WndOrgX;
pt->y = dc->w.WndOrgY;
}
dc->w.WndOrgX += x;
dc->w.WndOrgY += y;
return TRUE;
}
/***********************************************************************
* ScaleViewportExt (GDI.18)
*/
DWORD ScaleViewportExt( HDC hdc, short xNum, short xDenom,
short yNum, short yDenom )
{
SIZE size;
if (!ScaleViewportExtEx( hdc, xNum, xDenom, yNum, yDenom, &size ))
return 0;
return size.cx | (size.cy << 16);
}
/***********************************************************************
* ScaleViewportExtEx (GDI.484)
*/
BOOL ScaleViewportExtEx( HDC hdc, short xNum, short xDenom,
short yNum, short yDenom, LPSIZE size )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
if (size)
{
size->cx = dc->w.VportExtX;
size->cy = dc->w.VportExtY;
}
if ((dc->w.MapMode != MM_ISOTROPIC) && (dc->w.MapMode != MM_ANISOTROPIC))
return TRUE;
if (!xNum || !xDenom || !xNum || !yDenom) return FALSE;
dc->w.VportExtX = (dc->w.VportExtX * xNum) / xDenom;
dc->w.VportExtY = (dc->w.VportExtY * yNum) / yDenom;
if (dc->w.VportExtX == 0) dc->w.VportExtX = 1;
if (dc->w.VportExtY == 0) dc->w.VportExtY = 1;
if (dc->w.MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
return TRUE;
}
/***********************************************************************
* ScaleWindowExt (GDI.16)
*/
DWORD ScaleWindowExt( HDC hdc, short xNum, short xDenom,
short yNum, short yDenom )
{
SIZE size;
if (!ScaleWindowExtEx( hdc, xNum, xDenom, yNum, yDenom, &size ))
return 0;
return size.cx | (size.cy << 16);
}
/***********************************************************************
* ScaleWindowExtEx (GDI.485)
*/
BOOL ScaleWindowExtEx( HDC hdc, short xNum, short xDenom,
short yNum, short yDenom, LPSIZE size )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
if (size)
{
size->cx = dc->w.WndExtX;
size->cy = dc->w.WndExtY;
}
if ((dc->w.MapMode != MM_ISOTROPIC) && (dc->w.MapMode != MM_ANISOTROPIC))
return TRUE;
if (!xNum || !xDenom || !xNum || !yDenom) return FALSE;
dc->w.WndExtX = (dc->w.WndExtX * xNum) / xDenom;
dc->w.WndExtY = (dc->w.WndExtY * yNum) / yDenom;
if (dc->w.WndExtX == 0) dc->w.WndExtX = 1;
if (dc->w.WndExtY == 0) dc->w.WndExtY = 1;
if (dc->w.MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
return TRUE;
}