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Sweden-Number/windows/mapping.c
Alexandre Julliard e2bfa4c722 Release 960516 
Thu May 16 13:35:31 1996  Alexandre Julliard  <julliard@lrc.epfl.ch>

	* [*/*.c]
	Renamed RECT, POINT and SIZE structures to RECT16, POINT16 and
	SIZE16. Implemented Win32 version of most functions that take
	these types as parameters.

	* [configure]
	Patched autoconf to attempt to correctly detect -lnsl and
	-lsocket. Please check this out.
	
	* [controls/button.c]
	Added support for Win32 BM_* messages.

	* [controls/menu.c]
	Avoid sending extra WM_MENUSELECT messages. This avoids crashes
	with Excel.

	* [memory.heap.c] [include/heap.h]
	Added support for SEGPTRs in Win32 heaps. Added a few macros to
 	make using SEGPTRs easier. They are a bit slower than MAKE_SEGPTR,
 	but they work with Win32.

	* [memory/atom.c]
	Implemented Win32 atom functions.

	* [memory/local.c]
	Fixed LocalReAlloc() changes to avoid copying the whole block twice.

	* [win32/memory.c]
	Use /dev/zero instead of MAP_ANON for VirtualAlloc().

	* [windows/class.c]
	Properly implemented the Win32 class functions.

	* [windows/winproc.c] (New file)
	New file handling the message translation between Win16 and Win32.

Mon May 13 18:00:00 1996 Alex Korobka <alex@phm30.pharm.sunysb.edu>

	* [windows/mdi.c] [windows/menu.c]
	Improved WM_MDICREATE and WM_MDICASCADE handling.

	* [windows/event.c] [objects/bitblt.c]
	Handle GraphicsExpose event for BitBlt from screen to screen.

	* [windows/event.c] [windows/win.c] [windows/nonclient.c]
	Bunch of fixes for problems with -managed.

	* [windows/win.c] [windows/winpos.c]
	Changed conditions for WM_SIZE, WM_MOVE, and WM_GETMINMAXINFO
	in CreateWindow.

	* [windows/win.c] [windows/queue.c] [misc/user.c]
	Do not send WM_PARENTNOTIFY when in AppExit and call WH_SHELL
	on window creation/destruction.

	* [objects/palette.c]
	Crude RealizePalette(). At least something is visible in LviewPro.

Sun May 12 02:05:00 1996  Thomas Sandford <t.d.g.sandford@prds-grn.demon.co.uk>

	* [if1632/gdi32.spec]
	Added Rectangle (use win16 version).

	* [if1632/kernel32.spec]
	Added GetWindowsDirectoryA (use win16 GetWindowsDirectory).

	* [if1632/user32.spec]
	Added GetSubMenu, MoveWindow, SetScrollPos, SetScrollRange (use win16
	versions).
	Added SetWindowsHookExA (empty stub for now).

	* [include/handle32.h]
	Changed #include <malloc.h> to #include <stdlib.h> to prevent
	hate message from FreeBSD compiler.

	* [win32/newfns.c]
	Added new function SetWindowsHookEx32A (empty stub for now).

	* [win32/user32.c]
	Removed redundant debugging printf statement.

Sun May 12 01:24:57 1996  Huw D. M. Davies <h.davies1@physics.oxford.ac.uk>

	* [memory/local.c]
	Avoid creating adjacent free blocks.
	Free the block in LocalReAlloc() before allocating a new one.
	Fixed LocalReAlloc() for discarded blocks.
	
Fri May 10 23:05:12 1996  Jukka Iivonen <iivonen@cc.helsinki.fi>

	* [resources/sysres_Fi.rc]
	ChooseFont and ChooseColor dialogs updated.

Fri May 10 17:19:33 1996  Marcus Meissner <msmeissn@cip.informatik.uni-erlangen.de>

	* [files/drive.c,if1632/kernel.spec]
	GetCurrentDirectory(),SetCurrentDirectory() implemented.

	* [if1632/advapi32.spec] [if1632/kernel.spec] [if1632/shell.spec]
	  [include/windows.h] [include/winreg.h] [loader/main.c]
	  [misc/main.c] [misc/shell.c] [misc/registry.c]
	Registry fixes:
	- loads win95 registry databases,
	- save only updated keys on default,
	- now adhers to the new function naming standard,
	- minor cleanups.

Tue May 7 22:36:13 1996  Albrecht Kleine  <kleine@ak.sax.de>

	* [combo.c]
	Added WM_COMMAND-handling for interaction between EDIT and COMBOLBOX
        and synchronized mine with Greg Kreider's works.

	* [commdlg.c]
	Bugfix in ChooseFont: font size handling.
1996-05-16 18:21:06 +00:00

663 lines
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/*
* GDI mapping mode functions
*
* Copyright 1993 Alexandre Julliard
*/
#include <math.h>
#include "gdi.h"
#include "metafile.h"
#include "stddebug.h"
/* #define DEBUG_GDI */
#include "debug.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 * fabs( ydim / xdim );
if (!dc->w.VportExtX) dc->w.VportExtX = 1;
}
else
{
dc->w.VportExtY = dc->w.VportExtY * fabs( xdim / ydim );
if (!dc->w.VportExtY) dc->w.VportExtY = 1;
}
}
/***********************************************************************
* DPtoLP16 (GDI.67)
*/
BOOL16 DPtoLP16( HDC16 hdc, LPPOINT16 points, INT16 count )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
while (count--)
{
points->x = XDPTOLP( dc, points->x );
points->y = YDPTOLP( dc, points->y );
}
return TRUE;
}
/***********************************************************************
* DPtoLP32 (GDI32.65)
*/
BOOL32 DPtoLP32( HDC32 hdc, LPPOINT32 points, INT32 count )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
while (count--)
{
points->x = XDPTOLP( dc, points->x );
points->y = YDPTOLP( dc, points->y );
}
return TRUE;
}
/***********************************************************************
* LPtoDP16 (GDI.99)
*/
BOOL16 LPtoDP16( HDC16 hdc, LPPOINT16 points, INT16 count )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
while (count--)
{
points->x = XLPTODP( dc, points->x );
points->y = YLPTODP( dc, points->y );
}
return TRUE;
}
/***********************************************************************
* LPtoDP32 (GDI32.247)
*/
BOOL32 LPtoDP32( HDC32 hdc, LPPOINT32 points, INT32 count )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
while (count--)
{
points->x = XLPTODP( dc, points->x );
points->y = YLPTODP( dc, points->y );
}
return TRUE;
}
/***********************************************************************
* SetMapMode (GDI.3)
*/
WORD SetMapMode( HDC hdc, WORD mode )
{
WORD prevMode;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return 0;
MF_MetaParam1(dc, META_SETMAPMODE, mode);
return 1;
}
dprintf_gdi(stddeb, "SetMapMode: %04x %d\n", hdc, mode );
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( HDC16 hdc, INT16 x, INT16 y )
{
SIZE16 size;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return FALSE;
MF_MetaParam2(dc, META_SETVIEWPORTEXT, x, y);
return 0;
}
size.cx = dc->w.VportExtX;
size.cy = dc->w.VportExtY;
if ((dc->w.MapMode != MM_ISOTROPIC) && (dc->w.MapMode != MM_ANISOTROPIC))
return MAKELONG( size.cx, size.cy );
if (!x || !y) return 0;
dc->w.VportExtX = x;
dc->w.VportExtY = y;
if (dc->w.MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
return MAKELONG( size.cx, size.cy );
}
/***********************************************************************
* SetViewportExtEx16 (GDI.479)
*/
BOOL16 SetViewportExtEx16( HDC16 hdc, INT16 x, INT16 y, LPSIZE16 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;
}
/***********************************************************************
* SetViewportExtEx32 (GDI32.340)
*/
BOOL32 SetViewportExtEx32( HDC32 hdc, INT32 x, INT32 y, LPSIZE32 size )
{
SIZE16 size16;
BOOL16 ret = SetViewportExtEx16( (HDC16)hdc, (INT16)x, (INT16)y, &size16 );
if (size) CONV_SIZE16TO32( &size16, size );
return ret;
}
/***********************************************************************
* SetViewportOrg (GDI.13)
*/
DWORD SetViewportOrg( HDC16 hdc, INT16 x, INT16 y )
{
POINT16 pt;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return FALSE;
MF_MetaParam2(dc, META_SETVIEWPORTORG, x, y);
return 0;
}
pt.x = dc->w.VportOrgX;
pt.y = dc->w.VportOrgY;
dc->w.VportOrgX = x;
dc->w.VportOrgY = y;
return pt.x | (pt.y << 16);
}
/***********************************************************************
* SetViewportOrgEx16 (GDI.480)
*/
BOOL16 SetViewportOrgEx16( HDC16 hdc, INT16 x, INT16 y, LPPOINT16 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;
}
/***********************************************************************
* SetViewportOrgEx32 (GDI32.341)
*/
BOOL32 SetViewportOrgEx32( HDC32 hdc, INT32 x, INT32 y, LPPOINT32 pt )
{
POINT16 pt16;
BOOL16 ret = SetViewportOrgEx16( (HDC16)hdc, (INT16)x, (INT16)y, &pt16 );
if (pt) CONV_POINT16TO32( &pt16, pt );
return ret;
}
/***********************************************************************
* SetWindowExt (GDI.12)
*/
DWORD SetWindowExt( HDC16 hdc, INT16 x, INT16 y )
{
SIZE16 size;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return FALSE;
MF_MetaParam2(dc, META_SETWINDOWEXT, x, y);
return 0;
}
size.cx = dc->w.WndExtX;
size.cy = dc->w.WndExtY;
if ((dc->w.MapMode != MM_ISOTROPIC) && (dc->w.MapMode != MM_ANISOTROPIC))
return MAKELONG( size.cx, size.cy );
if (!x || !y) return 0;
dc->w.WndExtX = x;
dc->w.WndExtY = y;
if (dc->w.MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
return MAKELONG( size.cx, size.cy );
}
/***********************************************************************
* SetWindowExtEx16 (GDI.481)
*/
BOOL16 SetWindowExtEx16( HDC16 hdc, INT16 x, INT16 y, LPSIZE16 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;
}
/***********************************************************************
* SetWindowExtEx32 (GDI32.344)
*/
BOOL32 SetWindowExtEx32( HDC32 hdc, INT32 x, INT32 y, LPSIZE32 size )
{
SIZE16 size16;
BOOL16 ret = SetWindowExtEx16( (HDC16)hdc, (INT16)x, (INT16)y, &size16 );
if (size) CONV_SIZE16TO32( &size16, size );
return ret;
}
/***********************************************************************
* SetWindowOrg (GDI.11)
*/
DWORD SetWindowOrg( HDC16 hdc, INT16 x, INT16 y )
{
POINT16 pt;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return FALSE;
MF_MetaParam2(dc, META_SETWINDOWORG, x, y);
return 0;
}
pt.x = dc->w.WndOrgX;
pt.y = dc->w.WndOrgY;
dc->w.WndOrgX = x;
dc->w.WndOrgY = y;
return MAKELONG( pt.x, pt.y );
}
/***********************************************************************
* SetWindowOrgEx16 (GDI.482)
*/
BOOL16 SetWindowOrgEx16( HDC16 hdc, INT16 x, INT16 y, LPPOINT16 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;
}
/***********************************************************************
* SetWindowOrgEx32 (GDI32.345)
*/
BOOL32 SetWindowOrgEx32( HDC32 hdc, INT32 x, INT32 y, LPPOINT32 pt )
{
POINT16 pt16;
BOOL16 ret = SetWindowOrgEx16( (HDC16)hdc, (INT16)x, (INT16)y, &pt16 );
if (pt) CONV_POINT16TO32( &pt16, pt );
return ret;
}
/***********************************************************************
* OffsetViewportOrg (GDI.17)
*/
DWORD OffsetViewportOrg( HDC16 hdc, INT16 x, INT16 y )
{
POINT16 pt;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return FALSE;
MF_MetaParam2(dc, META_OFFSETVIEWPORTORG, x, y);
return 0;
}
pt.x = dc->w.VportOrgX;
pt.y = dc->w.VportOrgY;
dc->w.VportOrgX += x;
dc->w.VportOrgY += y;
return pt.x | (pt.y << 16);
}
/***********************************************************************
* OffsetViewportOrgEx16 (GDI.476)
*/
BOOL16 OffsetViewportOrgEx16( HDC16 hdc, INT16 x, INT16 y, LPPOINT16 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;
}
/***********************************************************************
* OffsetViewportOrgEx32 (GDI32.257)
*/
BOOL32 OffsetViewportOrgEx32( HDC32 hdc, INT32 x, INT32 y, LPPOINT32 pt )
{
POINT16 pt16;
BOOL16 ret = OffsetViewportOrgEx16( (HDC16)hdc, (INT16)x, (INT16)y, &pt16);
if (pt) CONV_POINT16TO32( &pt16, pt );
return ret;
}
/***********************************************************************
* OffsetWindowOrg (GDI.15)
*/
DWORD OffsetWindowOrg( HDC16 hdc, INT16 x, INT16 y )
{
POINT16 pt;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return FALSE;
MF_MetaParam2(dc, META_OFFSETWINDOWORG, x, y);
return 0;
}
pt.x = dc->w.WndOrgX;
pt.y = dc->w.WndOrgY;
dc->w.WndOrgX += x;
dc->w.WndOrgY += y;
return pt.x | (pt.y << 16);
}
/***********************************************************************
* OffsetWindowOrgEx16 (GDI.477)
*/
BOOL16 OffsetWindowOrgEx16( HDC16 hdc, INT16 x, INT16 y, LPPOINT16 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;
}
/***********************************************************************
* OffsetWindowOrgEx32 (GDI32.258)
*/
BOOL32 OffsetWindowOrgEx32( HDC32 hdc, INT32 x, INT32 y, LPPOINT32 pt )
{
POINT16 pt16;
BOOL16 ret = OffsetWindowOrgEx16( (HDC16)hdc, (INT16)x, (INT16)y, &pt16 );
if (pt) CONV_POINT16TO32( &pt16, pt );
return ret;
}
/***********************************************************************
* ScaleViewportExt (GDI.18)
*/
DWORD ScaleViewportExt( HDC16 hdc, INT16 xNum, INT16 xDenom,
INT16 yNum, INT16 yDenom )
{
SIZE16 size;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return FALSE;
MF_MetaParam4(dc, META_SCALEVIEWPORTEXT, xNum, xDenom, yNum, yDenom);
return 0;
}
size.cx = dc->w.VportExtX;
size.cy = dc->w.VportExtY;
if ((dc->w.MapMode != MM_ISOTROPIC) && (dc->w.MapMode != MM_ANISOTROPIC))
return size.cx | (size.cy << 16);
if (!xNum || !xDenom || !xNum || !yDenom) return 0;
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 size.cx | (size.cy << 16);
}
/***********************************************************************
* ScaleViewportExtEx16 (GDI.484)
*/
BOOL16 ScaleViewportExtEx16( HDC16 hdc, INT16 xNum, INT16 xDenom,
INT16 yNum, INT16 yDenom, LPSIZE16 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;
}
/***********************************************************************
* ScaleViewportExtEx32 (GDI32.293)
*/
BOOL32 ScaleViewportExtEx32( HDC32 hdc, INT32 xNum, INT32 xDenom,
INT32 yNum, INT32 yDenom, LPSIZE32 size )
{
SIZE16 size16;
BOOL16 ret = ScaleViewportExtEx16( (HDC16)hdc, (INT16)xNum, (INT16)xDenom,
(INT16)yNum, (INT16)yDenom, &size16 );
if (size) CONV_SIZE16TO32( &size16, size );
return ret;
}
/***********************************************************************
* ScaleWindowExt (GDI.16)
*/
DWORD ScaleWindowExt( HDC16 hdc, INT16 xNum, INT16 xDenom,
INT16 yNum, INT16 yDenom )
{
SIZE16 size;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return FALSE;
MF_MetaParam4(dc, META_SCALEWINDOWEXT, xNum, xDenom, yNum, yDenom);
return 0;
}
size.cx = dc->w.WndExtX;
size.cy = dc->w.WndExtY;
if ((dc->w.MapMode != MM_ISOTROPIC) && (dc->w.MapMode != MM_ANISOTROPIC))
return size.cx | (size.cy << 16);
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 size.cx | (size.cy << 16);
}
/***********************************************************************
* ScaleWindowExtEx16 (GDI.485)
*/
BOOL16 ScaleWindowExtEx16( HDC16 hdc, INT16 xNum, INT16 xDenom,
INT16 yNum, INT16 yDenom, LPSIZE16 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;
}
/***********************************************************************
* ScaleWindowExtEx32 (GDI32.294)
*/
BOOL32 ScaleWindowExtEx32( HDC32 hdc, INT32 xNum, INT32 xDenom,
INT32 yNum, INT32 yDenom, LPSIZE32 size )
{
SIZE16 size16;
BOOL16 ret = ScaleWindowExtEx16( (HDC16)hdc, (INT16)xNum, (INT16)xDenom,
(INT16)yNum, (INT16)yDenom, &size16 );
if (size) CONV_SIZE16TO32( &size16, size );
return ret;
}
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