mirror of
git://source.winehq.org/git/wine.git
synced 2024-10-07 09:08:44 +00:00
d8a9244fc4
Removed some direct accesses to the bitmap structure. Fixed handling of stock bitmap if selected in multiple DCs. Some minor fixes to the DC function table.
649 lines
17 KiB
C
649 lines
17 KiB
C
/*
|
|
* GDI mapping mode functions
|
|
*
|
|
* Copyright 1993 Alexandre Julliard
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser 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
|
|
*/
|
|
|
|
#include "gdi.h"
|
|
#include "wine/debug.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(gdi);
|
|
|
|
|
|
/***********************************************************************
|
|
* MAPPING_FixIsotropic
|
|
*
|
|
* Fix viewport extensions for isotropic mode.
|
|
*/
|
|
void MAPPING_FixIsotropic( DC * dc )
|
|
{
|
|
double xdim = (double)dc->vportExtX * GetDeviceCaps( dc->hSelf, HORZSIZE ) /
|
|
(GetDeviceCaps( dc->hSelf, HORZRES ) * dc->wndExtX);
|
|
double ydim = (double)dc->vportExtY * GetDeviceCaps( dc->hSelf, VERTSIZE ) /
|
|
(GetDeviceCaps( dc->hSelf, VERTRES ) * dc->wndExtY);
|
|
if (xdim > ydim)
|
|
{
|
|
dc->vportExtX = dc->vportExtX * fabs( ydim / xdim );
|
|
if (!dc->vportExtX) dc->vportExtX = 1;
|
|
}
|
|
else
|
|
{
|
|
dc->vportExtY = dc->vportExtY * fabs( xdim / ydim );
|
|
if (!dc->vportExtY) dc->vportExtY = 1;
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* DPtoLP (GDI.67)
|
|
*/
|
|
BOOL16 WINAPI DPtoLP16( HDC16 hdc, LPPOINT16 points, INT16 count )
|
|
{
|
|
DC * dc = DC_GetDCPtr( hdc );
|
|
if (!dc) return FALSE;
|
|
|
|
while (count--)
|
|
{
|
|
points->x = XDPTOLP( dc, points->x );
|
|
points->y = YDPTOLP( dc, points->y );
|
|
points++;
|
|
}
|
|
GDI_ReleaseObj( hdc );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* DPtoLP (GDI32.@)
|
|
*/
|
|
BOOL WINAPI DPtoLP( HDC hdc, LPPOINT points, INT count )
|
|
{
|
|
DC * dc = DC_GetDCPtr( hdc );
|
|
if (!dc) return FALSE;
|
|
|
|
while (count--)
|
|
{
|
|
if (!INTERNAL_DPTOLP( dc, points ))
|
|
break;
|
|
points++;
|
|
}
|
|
GDI_ReleaseObj( hdc );
|
|
return (count < 0);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LPtoDP (GDI.99)
|
|
*/
|
|
BOOL16 WINAPI LPtoDP16( HDC16 hdc, LPPOINT16 points, INT16 count )
|
|
{
|
|
DC * dc = DC_GetDCPtr( hdc );
|
|
if (!dc) return FALSE;
|
|
|
|
while (count--)
|
|
{
|
|
points->x = XLPTODP( dc, points->x );
|
|
points->y = YLPTODP( dc, points->y );
|
|
points++;
|
|
}
|
|
GDI_ReleaseObj( hdc );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LPtoDP (GDI32.@)
|
|
*/
|
|
BOOL WINAPI LPtoDP( HDC hdc, LPPOINT points, INT count )
|
|
{
|
|
DC * dc = DC_GetDCPtr( hdc );
|
|
if (!dc) return FALSE;
|
|
|
|
while (count--)
|
|
{
|
|
INTERNAL_LPTODP( dc, points );
|
|
points++;
|
|
}
|
|
GDI_ReleaseObj( hdc );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetMapMode (GDI.3)
|
|
*/
|
|
INT16 WINAPI SetMapMode16( HDC16 hdc, INT16 mode )
|
|
{
|
|
return SetMapMode( hdc, mode );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetMapMode (GDI32.@)
|
|
*/
|
|
INT WINAPI SetMapMode( HDC hdc, INT mode )
|
|
{
|
|
INT prevMode;
|
|
INT horzSize, vertSize, horzRes, vertRes;
|
|
|
|
DC * dc = DC_GetDCPtr( hdc );
|
|
if (!dc) return 0;
|
|
if (dc->funcs->pSetMapMode)
|
|
{
|
|
prevMode = dc->funcs->pSetMapMode( dc->physDev, mode );
|
|
goto done;
|
|
}
|
|
|
|
TRACE("%04x %d\n", hdc, mode );
|
|
|
|
prevMode = dc->MapMode;
|
|
horzSize = GetDeviceCaps( hdc, HORZSIZE );
|
|
vertSize = GetDeviceCaps( hdc, VERTSIZE );
|
|
horzRes = GetDeviceCaps( hdc, HORZRES );
|
|
vertRes = GetDeviceCaps( hdc, VERTRES );
|
|
switch(mode)
|
|
{
|
|
case MM_TEXT:
|
|
dc->wndExtX = 1;
|
|
dc->wndExtY = 1;
|
|
dc->vportExtX = 1;
|
|
dc->vportExtY = 1;
|
|
break;
|
|
case MM_LOMETRIC:
|
|
case MM_ISOTROPIC:
|
|
dc->wndExtX = horzSize;
|
|
dc->wndExtY = vertSize;
|
|
dc->vportExtX = horzRes / 10;
|
|
dc->vportExtY = vertRes / -10;
|
|
break;
|
|
case MM_HIMETRIC:
|
|
dc->wndExtX = horzSize * 10;
|
|
dc->wndExtY = vertSize * 10;
|
|
dc->vportExtX = horzRes / 10;
|
|
dc->vportExtY = vertRes / -10;
|
|
break;
|
|
case MM_LOENGLISH:
|
|
dc->wndExtX = horzSize;
|
|
dc->wndExtY = vertSize;
|
|
dc->vportExtX = 254L * horzRes / 1000;
|
|
dc->vportExtY = -254L * vertRes / 1000;
|
|
break;
|
|
case MM_HIENGLISH:
|
|
dc->wndExtX = horzSize * 10;
|
|
dc->wndExtY = vertSize * 10;
|
|
dc->vportExtX = 254L * horzRes / 1000;
|
|
dc->vportExtY = -254L * vertRes / 1000;
|
|
break;
|
|
case MM_TWIPS:
|
|
dc->wndExtX = 144L * horzSize / 10;
|
|
dc->wndExtY = 144L * vertSize / 10;
|
|
dc->vportExtX = 254L * horzRes / 1000;
|
|
dc->vportExtY = -254L * vertRes / 1000;
|
|
break;
|
|
case MM_ANISOTROPIC:
|
|
break;
|
|
default:
|
|
goto done;
|
|
}
|
|
dc->MapMode = mode;
|
|
DC_UpdateXforms( dc );
|
|
done:
|
|
GDI_ReleaseObj( hdc );
|
|
return prevMode;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetViewportExt (GDI.14)
|
|
*/
|
|
DWORD WINAPI SetViewportExt16( HDC16 hdc, INT16 x, INT16 y )
|
|
{
|
|
SIZE size;
|
|
if (!SetViewportExtEx( hdc, x, y, &size )) return 0;
|
|
return MAKELONG( size.cx, size.cy );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetViewportExtEx (GDI.479)
|
|
*/
|
|
BOOL16 WINAPI SetViewportExtEx16( HDC16 hdc, INT16 x, INT16 y, LPSIZE16 size )
|
|
{
|
|
SIZE size32;
|
|
BOOL16 ret = SetViewportExtEx( hdc, x, y, &size32 );
|
|
if (size) { size->cx = size32.cx; size->cy = size32.cy; }
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetViewportExtEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI SetViewportExtEx( HDC hdc, INT x, INT y, LPSIZE size )
|
|
{
|
|
BOOL ret = TRUE;
|
|
DC * dc = DC_GetDCPtr( hdc );
|
|
if (!dc) return FALSE;
|
|
if (dc->funcs->pSetViewportExt)
|
|
{
|
|
ret = dc->funcs->pSetViewportExt( dc->physDev, x, y );
|
|
goto done;
|
|
}
|
|
if (size)
|
|
{
|
|
size->cx = dc->vportExtX;
|
|
size->cy = dc->vportExtY;
|
|
}
|
|
if ((dc->MapMode != MM_ISOTROPIC) && (dc->MapMode != MM_ANISOTROPIC))
|
|
goto done;
|
|
if (!x || !y)
|
|
{
|
|
ret = FALSE;
|
|
goto done;
|
|
}
|
|
dc->vportExtX = x;
|
|
dc->vportExtY = y;
|
|
if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
|
|
DC_UpdateXforms( dc );
|
|
done:
|
|
GDI_ReleaseObj( hdc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetViewportOrg (GDI.13)
|
|
*/
|
|
DWORD WINAPI SetViewportOrg16( HDC16 hdc, INT16 x, INT16 y )
|
|
{
|
|
POINT pt;
|
|
if (!SetViewportOrgEx( hdc, x, y, &pt )) return 0;
|
|
return MAKELONG( pt.x, pt.y );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetViewportOrgEx (GDI.480)
|
|
*/
|
|
BOOL16 WINAPI SetViewportOrgEx16( HDC16 hdc, INT16 x, INT16 y, LPPOINT16 pt )
|
|
{
|
|
POINT pt32;
|
|
BOOL16 ret = SetViewportOrgEx( hdc, x, y, &pt32 );
|
|
if (pt) CONV_POINT32TO16( &pt32, pt );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetViewportOrgEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI SetViewportOrgEx( HDC hdc, INT x, INT y, LPPOINT pt )
|
|
{
|
|
BOOL ret = TRUE;
|
|
DC * dc = DC_GetDCPtr( hdc );
|
|
if (!dc) return FALSE;
|
|
if (dc->funcs->pSetViewportOrg)
|
|
ret = dc->funcs->pSetViewportOrg( dc->physDev, x, y );
|
|
else
|
|
{
|
|
if (pt)
|
|
{
|
|
pt->x = dc->vportOrgX;
|
|
pt->y = dc->vportOrgY;
|
|
}
|
|
dc->vportOrgX = x;
|
|
dc->vportOrgY = y;
|
|
DC_UpdateXforms( dc );
|
|
}
|
|
GDI_ReleaseObj( hdc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetWindowExt (GDI.12)
|
|
*/
|
|
DWORD WINAPI SetWindowExt16( HDC16 hdc, INT16 x, INT16 y )
|
|
{
|
|
SIZE size;
|
|
if (!SetWindowExtEx( hdc, x, y, &size )) return 0;
|
|
return MAKELONG( size.cx, size.cy );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetWindowExtEx (GDI.481)
|
|
*/
|
|
BOOL16 WINAPI SetWindowExtEx16( HDC16 hdc, INT16 x, INT16 y, LPSIZE16 size )
|
|
{
|
|
SIZE size32;
|
|
BOOL16 ret = SetWindowExtEx( hdc, x, y, &size32 );
|
|
if (size) { size->cx = size32.cx; size->cy = size32.cy; }
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetWindowExtEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI SetWindowExtEx( HDC hdc, INT x, INT y, LPSIZE size )
|
|
{
|
|
BOOL ret = TRUE;
|
|
DC * dc = DC_GetDCPtr( hdc );
|
|
if (!dc) return FALSE;
|
|
if (dc->funcs->pSetWindowExt)
|
|
{
|
|
ret = dc->funcs->pSetWindowExt( dc->physDev, x, y );
|
|
goto done;
|
|
}
|
|
if (size)
|
|
{
|
|
size->cx = dc->wndExtX;
|
|
size->cy = dc->wndExtY;
|
|
}
|
|
if ((dc->MapMode != MM_ISOTROPIC) && (dc->MapMode != MM_ANISOTROPIC))
|
|
goto done;
|
|
if (!x || !y)
|
|
{
|
|
ret = FALSE;
|
|
goto done;
|
|
}
|
|
dc->wndExtX = x;
|
|
dc->wndExtY = y;
|
|
if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
|
|
DC_UpdateXforms( dc );
|
|
done:
|
|
GDI_ReleaseObj( hdc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetWindowOrg (GDI.11)
|
|
*/
|
|
DWORD WINAPI SetWindowOrg16( HDC16 hdc, INT16 x, INT16 y )
|
|
{
|
|
POINT pt;
|
|
if (!SetWindowOrgEx( hdc, x, y, &pt )) return 0;
|
|
return MAKELONG( pt.x, pt.y );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetWindowOrgEx (GDI.482)
|
|
*/
|
|
BOOL16 WINAPI SetWindowOrgEx16( HDC16 hdc, INT16 x, INT16 y, LPPOINT16 pt )
|
|
{
|
|
POINT pt32;
|
|
BOOL16 ret = SetWindowOrgEx( hdc, x, y, &pt32 );
|
|
if (pt) CONV_POINT32TO16( &pt32, pt );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetWindowOrgEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI SetWindowOrgEx( HDC hdc, INT x, INT y, LPPOINT pt )
|
|
{
|
|
BOOL ret = TRUE;
|
|
DC * dc = DC_GetDCPtr( hdc );
|
|
if (!dc) return FALSE;
|
|
if (dc->funcs->pSetWindowOrg) ret = dc->funcs->pSetWindowOrg( dc->physDev, x, y );
|
|
else
|
|
{
|
|
if (pt)
|
|
{
|
|
pt->x = dc->wndOrgX;
|
|
pt->y = dc->wndOrgY;
|
|
}
|
|
dc->wndOrgX = x;
|
|
dc->wndOrgY = y;
|
|
DC_UpdateXforms( dc );
|
|
}
|
|
GDI_ReleaseObj( hdc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* OffsetViewportOrg (GDI.17)
|
|
*/
|
|
DWORD WINAPI OffsetViewportOrg16( HDC16 hdc, INT16 x, INT16 y )
|
|
{
|
|
POINT pt;
|
|
if (!OffsetViewportOrgEx( hdc, x, y, &pt )) return 0;
|
|
return MAKELONG( pt.x, pt.y );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* OffsetViewportOrgEx (GDI.476)
|
|
*/
|
|
BOOL16 WINAPI OffsetViewportOrgEx16( HDC16 hdc, INT16 x, INT16 y, LPPOINT16 pt)
|
|
{
|
|
POINT pt32;
|
|
BOOL16 ret = OffsetViewportOrgEx( hdc, x, y, &pt32 );
|
|
if (pt) CONV_POINT32TO16( &pt32, pt );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* OffsetViewportOrgEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI OffsetViewportOrgEx( HDC hdc, INT x, INT y, LPPOINT pt)
|
|
{
|
|
BOOL ret = TRUE;
|
|
DC * dc = DC_GetDCPtr( hdc );
|
|
if (!dc) return FALSE;
|
|
if (dc->funcs->pOffsetViewportOrg)
|
|
ret = dc->funcs->pOffsetViewportOrg( dc->physDev, x, y );
|
|
else
|
|
{
|
|
if (pt)
|
|
{
|
|
pt->x = dc->vportOrgX;
|
|
pt->y = dc->vportOrgY;
|
|
}
|
|
dc->vportOrgX += x;
|
|
dc->vportOrgY += y;
|
|
DC_UpdateXforms( dc );
|
|
}
|
|
GDI_ReleaseObj( hdc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* OffsetWindowOrg (GDI.15)
|
|
*/
|
|
DWORD WINAPI OffsetWindowOrg16( HDC16 hdc, INT16 x, INT16 y )
|
|
{
|
|
POINT pt;
|
|
if (!OffsetWindowOrgEx( hdc, x, y, &pt )) return 0;
|
|
return MAKELONG( pt.x, pt.y );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* OffsetWindowOrgEx (GDI.477)
|
|
*/
|
|
BOOL16 WINAPI OffsetWindowOrgEx16( HDC16 hdc, INT16 x, INT16 y, LPPOINT16 pt )
|
|
{
|
|
POINT pt32;
|
|
BOOL16 ret = OffsetWindowOrgEx( hdc, x, y, &pt32 );
|
|
if (pt) CONV_POINT32TO16( &pt32, pt );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* OffsetWindowOrgEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI OffsetWindowOrgEx( HDC hdc, INT x, INT y, LPPOINT pt )
|
|
{
|
|
BOOL ret = TRUE;
|
|
DC * dc = DC_GetDCPtr( hdc );
|
|
if (!dc) return FALSE;
|
|
if (dc->funcs->pOffsetWindowOrg)
|
|
ret = dc->funcs->pOffsetWindowOrg( dc->physDev, x, y );
|
|
else
|
|
{
|
|
if (pt)
|
|
{
|
|
pt->x = dc->wndOrgX;
|
|
pt->y = dc->wndOrgY;
|
|
}
|
|
dc->wndOrgX += x;
|
|
dc->wndOrgY += y;
|
|
DC_UpdateXforms( dc );
|
|
}
|
|
GDI_ReleaseObj( hdc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* ScaleViewportExt (GDI.18)
|
|
*/
|
|
DWORD WINAPI ScaleViewportExt16( HDC16 hdc, INT16 xNum, INT16 xDenom,
|
|
INT16 yNum, INT16 yDenom )
|
|
{
|
|
SIZE size;
|
|
if (!ScaleViewportExtEx( hdc, xNum, xDenom, yNum, yDenom, &size ))
|
|
return FALSE;
|
|
return MAKELONG( size.cx, size.cy );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* ScaleViewportExtEx (GDI.484)
|
|
*/
|
|
BOOL16 WINAPI ScaleViewportExtEx16( HDC16 hdc, INT16 xNum, INT16 xDenom,
|
|
INT16 yNum, INT16 yDenom, LPSIZE16 size )
|
|
{
|
|
SIZE size32;
|
|
BOOL16 ret = ScaleViewportExtEx( hdc, xNum, xDenom, yNum, yDenom,
|
|
&size32 );
|
|
if (size) { size->cx = size32.cx; size->cy = size32.cy; }
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* ScaleViewportExtEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI ScaleViewportExtEx( HDC hdc, INT xNum, INT xDenom,
|
|
INT yNum, INT yDenom, LPSIZE size )
|
|
{
|
|
BOOL ret = TRUE;
|
|
DC * dc = DC_GetDCPtr( hdc );
|
|
if (!dc) return FALSE;
|
|
if (dc->funcs->pScaleViewportExt)
|
|
{
|
|
ret = dc->funcs->pScaleViewportExt( dc->physDev, xNum, xDenom, yNum, yDenom );
|
|
goto done;
|
|
}
|
|
if (size)
|
|
{
|
|
size->cx = dc->vportExtX;
|
|
size->cy = dc->vportExtY;
|
|
}
|
|
if ((dc->MapMode != MM_ISOTROPIC) && (dc->MapMode != MM_ANISOTROPIC))
|
|
goto done;
|
|
if (!xNum || !xDenom || !xNum || !yDenom)
|
|
{
|
|
ret = FALSE;
|
|
goto done;
|
|
}
|
|
dc->vportExtX = (dc->vportExtX * xNum) / xDenom;
|
|
dc->vportExtY = (dc->vportExtY * yNum) / yDenom;
|
|
if (dc->vportExtX == 0) dc->vportExtX = 1;
|
|
if (dc->vportExtY == 0) dc->vportExtY = 1;
|
|
if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
|
|
DC_UpdateXforms( dc );
|
|
done:
|
|
GDI_ReleaseObj( hdc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* ScaleWindowExt (GDI.16)
|
|
*/
|
|
DWORD WINAPI ScaleWindowExt16( HDC16 hdc, INT16 xNum, INT16 xDenom,
|
|
INT16 yNum, INT16 yDenom )
|
|
{
|
|
SIZE size;
|
|
if (!ScaleWindowExtEx( hdc, xNum, xDenom, yNum, yDenom, &size ))
|
|
return FALSE;
|
|
return MAKELONG( size.cx, size.cy );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* ScaleWindowExtEx (GDI.485)
|
|
*/
|
|
BOOL16 WINAPI ScaleWindowExtEx16( HDC16 hdc, INT16 xNum, INT16 xDenom,
|
|
INT16 yNum, INT16 yDenom, LPSIZE16 size )
|
|
{
|
|
SIZE size32;
|
|
BOOL16 ret = ScaleWindowExtEx( hdc, xNum, xDenom, yNum, yDenom,
|
|
&size32 );
|
|
if (size) { size->cx = size32.cx; size->cy = size32.cy; }
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* ScaleWindowExtEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI ScaleWindowExtEx( HDC hdc, INT xNum, INT xDenom,
|
|
INT yNum, INT yDenom, LPSIZE size )
|
|
{
|
|
BOOL ret = TRUE;
|
|
DC * dc = DC_GetDCPtr( hdc );
|
|
if (!dc) return FALSE;
|
|
if (dc->funcs->pScaleWindowExt)
|
|
{
|
|
ret = dc->funcs->pScaleWindowExt( dc->physDev, xNum, xDenom, yNum, yDenom );
|
|
goto done;
|
|
}
|
|
if (size)
|
|
{
|
|
size->cx = dc->wndExtX;
|
|
size->cy = dc->wndExtY;
|
|
}
|
|
if ((dc->MapMode != MM_ISOTROPIC) && (dc->MapMode != MM_ANISOTROPIC))
|
|
goto done;
|
|
if (!xNum || !xDenom || !xNum || !yDenom)
|
|
{
|
|
ret = FALSE;
|
|
goto done;
|
|
}
|
|
dc->wndExtX = (dc->wndExtX * xNum) / xDenom;
|
|
dc->wndExtY = (dc->wndExtY * yNum) / yDenom;
|
|
if (dc->wndExtX == 0) dc->wndExtX = 1;
|
|
if (dc->wndExtY == 0) dc->wndExtY = 1;
|
|
if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
|
|
DC_UpdateXforms( dc );
|
|
done:
|
|
GDI_ReleaseObj( hdc );
|
|
return ret;
|
|
}
|