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/*
* GDI Device Context functions
*
* Copyright 1993 Alexandre Julliard
*
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include "dc.h"
#include "gdi.h"
#include "heap.h"
#include "debugtools.h"
#include "font.h"
#include "callback.h"
#include "winerror.h"
#include "windef.h"
#include "wingdi.h"
#include "wine/winuser16.h"
DEFAULT_DEBUG_CHANNEL(dc);
/***********************************************************************
* DC_Init_DC_INFO
*
* Fill the WIN_DC_INFO structure.
*/
static void DC_Init_DC_INFO( WIN_DC_INFO *win_dc_info )
{
win_dc_info->flags = 0;
win_dc_info->devCaps = NULL;
win_dc_info->hClipRgn = 0;
win_dc_info->hVisRgn = 0;
win_dc_info->hGCClipRgn = 0;
win_dc_info->hPen = STOCK_BLACK_PEN;
win_dc_info->hBrush = STOCK_WHITE_BRUSH;
win_dc_info->hFont = STOCK_SYSTEM_FONT;
win_dc_info->hBitmap = 0;
win_dc_info->hDevice = 0;
win_dc_info->hPalette = STOCK_DEFAULT_PALETTE;
win_dc_info->ROPmode = R2_COPYPEN;
win_dc_info->polyFillMode = ALTERNATE;
win_dc_info->stretchBltMode = BLACKONWHITE;
win_dc_info->relAbsMode = ABSOLUTE;
win_dc_info->backgroundMode = OPAQUE;
win_dc_info->backgroundColor = RGB( 255, 255, 255 );
win_dc_info->textColor = RGB( 0, 0, 0 );
win_dc_info->brushOrgX = 0;
win_dc_info->brushOrgY = 0;
win_dc_info->textAlign = TA_LEFT | TA_TOP | TA_NOUPDATECP;
win_dc_info->charExtra = 0;
win_dc_info->breakTotalExtra = 0;
win_dc_info->breakCount = 0;
win_dc_info->breakExtra = 0;
win_dc_info->breakRem = 0;
win_dc_info->bitsPerPixel = 1;
win_dc_info->MapMode = MM_TEXT;
win_dc_info->GraphicsMode = GM_COMPATIBLE;
win_dc_info->DCOrgX = 0;
win_dc_info->DCOrgY = 0;
win_dc_info->pAbortProc = NULL;
win_dc_info->CursPosX = 0;
win_dc_info->CursPosY = 0;
win_dc_info->ArcDirection = AD_COUNTERCLOCKWISE;
win_dc_info->xformWorld2Wnd.eM11 = 1.0f;
win_dc_info->xformWorld2Wnd.eM12 = 0.0f;
win_dc_info->xformWorld2Wnd.eM21 = 0.0f;
win_dc_info->xformWorld2Wnd.eM22 = 1.0f;
win_dc_info->xformWorld2Wnd.eDx = 0.0f;
win_dc_info->xformWorld2Wnd.eDy = 0.0f;
win_dc_info->xformWorld2Vport = win_dc_info->xformWorld2Wnd;
win_dc_info->xformVport2World = win_dc_info->xformWorld2Wnd;
win_dc_info->vport2WorldValid = TRUE;
PATH_InitGdiPath(&win_dc_info->path);
}
/***********************************************************************
* DC_AllocDC
*/
DC *DC_AllocDC( const DC_FUNCTIONS *funcs )
{
HDC hdc;
DC *dc;
if (!(dc = GDI_AllocObject( sizeof(DC), DC_MAGIC, &hdc ))) return NULL;
dc->hSelf = hdc;
dc->funcs = funcs;
dc->physDev = NULL;
dc->saveLevel = 0;
dc->dwHookData = 0L;
dc->hookProc = NULL;
dc->hookThunk = NULL;
dc->wndOrgX = 0;
dc->wndOrgY = 0;
dc->wndExtX = 1;
dc->wndExtY = 1;
dc->vportOrgX = 0;
dc->vportOrgY = 0;
dc->vportExtX = 1;
dc->vportExtY = 1;
DC_Init_DC_INFO( &dc->w );
return dc;
}
/***********************************************************************
* DC_GetDCPtr
*/
DC *DC_GetDCPtr( HDC hdc )
{
GDIOBJHDR *ptr = GDI_GetObjPtr( hdc, MAGIC_DONTCARE );
if (!ptr) return NULL;
if ((GDIMAGIC(ptr->wMagic) == DC_MAGIC) ||
(GDIMAGIC(ptr->wMagic) == METAFILE_DC_MAGIC) ||
(GDIMAGIC(ptr->wMagic) == ENHMETAFILE_DC_MAGIC))
return (DC *)ptr;
GDI_ReleaseObj( hdc );
SetLastError( ERROR_INVALID_HANDLE );
return NULL;
}
/***********************************************************************
* DC_GetDCUpdate
*
* Retrieve a DC ptr while making sure the visRgn is updated.
* This function may call up to USER so the GDI lock should _not_
* be held when calling it.
*/
DC *DC_GetDCUpdate( HDC hdc )
{
DC *dc = DC_GetDCPtr( hdc );
if (!dc) return NULL;
while (dc->w.flags & DC_DIRTY)
{
dc->w.flags &= ~DC_DIRTY;
if (!(dc->w.flags & (DC_SAVED | DC_MEMORY)))
{
DCHOOKPROC proc = dc->hookThunk;
if (proc)
{
DWORD data = dc->dwHookData;
GDI_ReleaseObj( hdc );
proc( hdc, DCHC_INVALIDVISRGN, data, 0 );
if (!(dc = DC_GetDCPtr( hdc ))) break;
/* otherwise restart the loop in case it became dirty again in the meantime */
}
}
}
return dc;
}
/***********************************************************************
* DC_InitDC
*
* Setup device-specific DC values for a newly created DC.
*/
void DC_InitDC( DC* dc )
{
RealizeDefaultPalette16( dc->hSelf );
SetTextColor( dc->hSelf, dc->w.textColor );
SetBkColor( dc->hSelf, dc->w.backgroundColor );
SelectObject( dc->hSelf, dc->w.hPen );
SelectObject( dc->hSelf, dc->w.hBrush );
SelectObject( dc->hSelf, dc->w.hFont );
CLIPPING_UpdateGCRegion( dc );
}
/***********************************************************************
* DC_InvertXform
*
* Computes the inverse of the transformation xformSrc and stores it to
* xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
* is singular.
*/
static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
{
FLOAT determinant;
determinant = xformSrc->eM11*xformSrc->eM22 -
xformSrc->eM12*xformSrc->eM21;
if (determinant > -1e-12 && determinant < 1e-12)
return FALSE;
xformDest->eM11 = xformSrc->eM22 / determinant;
xformDest->eM12 = -xformSrc->eM12 / determinant;
xformDest->eM21 = -xformSrc->eM21 / determinant;
xformDest->eM22 = xformSrc->eM11 / determinant;
xformDest->eDx = -xformSrc->eDx * xformDest->eM11 -
xformSrc->eDy * xformDest->eM21;
xformDest->eDy = -xformSrc->eDx * xformDest->eM12 -
xformSrc->eDy * xformDest->eM22;
return TRUE;
}
/***********************************************************************
* DC_UpdateXforms
*
* Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
* fields of the specified DC by creating a transformation that
* represents the current mapping mode and combining it with the DC's
* world transform. This function should be called whenever the
* parameters associated with the mapping mode (window and viewport
* extents and origins) or the world transform change.
*/
void DC_UpdateXforms( DC *dc )
{
XFORM xformWnd2Vport;
FLOAT scaleX, scaleY;
/* Construct a transformation to do the window-to-viewport conversion */
scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
xformWnd2Vport.eM11 = scaleX;
xformWnd2Vport.eM12 = 0.0;
xformWnd2Vport.eM21 = 0.0;
xformWnd2Vport.eM22 = scaleY;
xformWnd2Vport.eDx = (FLOAT)dc->vportOrgX -
scaleX * (FLOAT)dc->wndOrgX;
xformWnd2Vport.eDy = (FLOAT)dc->vportOrgY -
scaleY * (FLOAT)dc->wndOrgY;
/* Combine with the world transformation */
CombineTransform( &dc->w.xformWorld2Vport, &dc->w.xformWorld2Wnd,
&xformWnd2Vport );
/* Create inverse of world-to-viewport transformation */
dc->w.vport2WorldValid = DC_InvertXform( &dc->w.xformWorld2Vport,
&dc->w.xformVport2World );
}
/***********************************************************************
* GetDCState (GDI.179)
*/
HDC16 WINAPI GetDCState16( HDC16 hdc )
{
DC * newdc, * dc;
HGDIOBJ handle;
if (!(dc = DC_GetDCUpdate( hdc ))) return 0;
if (!(newdc = GDI_AllocObject( sizeof(DC), DC_MAGIC, &handle )))
{
GDI_ReleaseObj( hdc );
return 0;
}
TRACE("(%04x): returning %04x\n", hdc, handle );
newdc->w.flags = dc->w.flags | DC_SAVED;
newdc->w.devCaps = dc->w.devCaps;
newdc->w.hPen = dc->w.hPen;
newdc->w.hBrush = dc->w.hBrush;
newdc->w.hFont = dc->w.hFont;
newdc->w.hBitmap = dc->w.hBitmap;
newdc->w.hDevice = dc->w.hDevice;
newdc->w.hPalette = dc->w.hPalette;
newdc->w.totalExtent = dc->w.totalExtent;
newdc->w.bitsPerPixel = dc->w.bitsPerPixel;
newdc->w.ROPmode = dc->w.ROPmode;
newdc->w.polyFillMode = dc->w.polyFillMode;
newdc->w.stretchBltMode = dc->w.stretchBltMode;
newdc->w.relAbsMode = dc->w.relAbsMode;
newdc->w.backgroundMode = dc->w.backgroundMode;
newdc->w.backgroundColor = dc->w.backgroundColor;
newdc->w.textColor = dc->w.textColor;
newdc->w.brushOrgX = dc->w.brushOrgX;
newdc->w.brushOrgY = dc->w.brushOrgY;
newdc->w.textAlign = dc->w.textAlign;
newdc->w.charExtra = dc->w.charExtra;
newdc->w.breakTotalExtra = dc->w.breakTotalExtra;
newdc->w.breakCount = dc->w.breakCount;
newdc->w.breakExtra = dc->w.breakExtra;
newdc->w.breakRem = dc->w.breakRem;
newdc->w.MapMode = dc->w.MapMode;
newdc->w.GraphicsMode = dc->w.GraphicsMode;
#if 0
/* Apparently, the DC origin is not changed by [GS]etDCState */
newdc->w.DCOrgX = dc->w.DCOrgX;
newdc->w.DCOrgY = dc->w.DCOrgY;
#endif
newdc->w.CursPosX = dc->w.CursPosX;
newdc->w.CursPosY = dc->w.CursPosY;
newdc->w.ArcDirection = dc->w.ArcDirection;
newdc->w.xformWorld2Wnd = dc->w.xformWorld2Wnd;
newdc->w.xformWorld2Vport = dc->w.xformWorld2Vport;
newdc->w.xformVport2World = dc->w.xformVport2World;
newdc->w.vport2WorldValid = dc->w.vport2WorldValid;
newdc->wndOrgX = dc->wndOrgX;
newdc->wndOrgY = dc->wndOrgY;
newdc->wndExtX = dc->wndExtX;
newdc->wndExtY = dc->wndExtY;
newdc->vportOrgX = dc->vportOrgX;
newdc->vportOrgY = dc->vportOrgY;
newdc->vportExtX = dc->vportExtX;
newdc->vportExtY = dc->vportExtY;
newdc->hSelf = (HDC)handle;
newdc->saveLevel = 0;
PATH_InitGdiPath( &newdc->w.path );
newdc->w.pAbortProc = NULL;
newdc->hookThunk = NULL;
/* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
newdc->w.hGCClipRgn = newdc->w.hVisRgn = 0;
if (dc->w.hClipRgn)
{
newdc->w.hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
CombineRgn( newdc->w.hClipRgn, dc->w.hClipRgn, 0, RGN_COPY );
}
else
newdc->w.hClipRgn = 0;
GDI_ReleaseObj( handle );
GDI_ReleaseObj( hdc );
return handle;
}
/***********************************************************************
* SetDCState (GDI.180)
*/
void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
{
DC *dc, *dcs;
if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return;
if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC )))
{
GDI_ReleaseObj( hdc );
return;
}
if (!dcs->w.flags & DC_SAVED)
{
GDI_ReleaseObj( hdc );
GDI_ReleaseObj( hdcs );
return;
}
TRACE("%04x %04x\n", hdc, hdcs );
dc->w.flags = dcs->w.flags & ~DC_SAVED;
dc->w.devCaps = dcs->w.devCaps;
dc->w.hDevice = dcs->w.hDevice;
dc->w.totalExtent = dcs->w.totalExtent;
dc->w.ROPmode = dcs->w.ROPmode;
dc->w.polyFillMode = dcs->w.polyFillMode;
dc->w.stretchBltMode = dcs->w.stretchBltMode;
dc->w.relAbsMode = dcs->w.relAbsMode;
dc->w.backgroundMode = dcs->w.backgroundMode;
dc->w.backgroundColor = dcs->w.backgroundColor;
dc->w.textColor = dcs->w.textColor;
dc->w.brushOrgX = dcs->w.brushOrgX;
dc->w.brushOrgY = dcs->w.brushOrgY;
dc->w.textAlign = dcs->w.textAlign;
dc->w.charExtra = dcs->w.charExtra;
dc->w.breakTotalExtra = dcs->w.breakTotalExtra;
dc->w.breakCount = dcs->w.breakCount;
dc->w.breakExtra = dcs->w.breakExtra;
dc->w.breakRem = dcs->w.breakRem;
dc->w.MapMode = dcs->w.MapMode;
dc->w.GraphicsMode = dcs->w.GraphicsMode;
#if 0
/* Apparently, the DC origin is not changed by [GS]etDCState */
dc->w.DCOrgX = dcs->w.DCOrgX;
dc->w.DCOrgY = dcs->w.DCOrgY;
#endif
dc->w.CursPosX = dcs->w.CursPosX;
dc->w.CursPosY = dcs->w.CursPosY;
dc->w.ArcDirection = dcs->w.ArcDirection;
dc->w.xformWorld2Wnd = dcs->w.xformWorld2Wnd;
dc->w.xformWorld2Vport = dcs->w.xformWorld2Vport;
dc->w.xformVport2World = dcs->w.xformVport2World;
dc->w.vport2WorldValid = dcs->w.vport2WorldValid;
dc->wndOrgX = dcs->wndOrgX;
dc->wndOrgY = dcs->wndOrgY;
dc->wndExtX = dcs->wndExtX;
dc->wndExtY = dcs->wndExtY;
dc->vportOrgX = dcs->vportOrgX;
dc->vportOrgY = dcs->vportOrgY;
dc->vportExtX = dcs->vportExtX;
dc->vportExtY = dcs->vportExtY;
if (!(dc->w.flags & DC_MEMORY)) dc->w.bitsPerPixel = dcs->w.bitsPerPixel;
if (dcs->w.hClipRgn)
{
if (!dc->w.hClipRgn) dc->w.hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
CombineRgn( dc->w.hClipRgn, dcs->w.hClipRgn, 0, RGN_COPY );
}
else
{
if (dc->w.hClipRgn) DeleteObject16( dc->w.hClipRgn );
dc->w.hClipRgn = 0;
}
CLIPPING_UpdateGCRegion( dc );
SelectObject( hdc, dcs->w.hBitmap );
SelectObject( hdc, dcs->w.hBrush );
SelectObject( hdc, dcs->w.hFont );
SelectObject( hdc, dcs->w.hPen );
SetBkColor( hdc, dcs->w.backgroundColor);
SetTextColor( hdc, dcs->w.textColor);
GDISelectPalette16( hdc, dcs->w.hPalette, FALSE );
GDI_ReleaseObj( hdcs );
GDI_ReleaseObj( hdc );
}
/***********************************************************************
* SaveDC16 (GDI.30)
*/
INT16 WINAPI SaveDC16( HDC16 hdc )
{
return (INT16)SaveDC( hdc );
}
/***********************************************************************
* SaveDC (GDI32.292)
*/
INT WINAPI SaveDC( HDC hdc )
{
HDC hdcs;
DC * dc, * dcs;
INT ret;
dc = DC_GetDCUpdate( hdc );
if (!dc) return 0;
if(dc->funcs->pSaveDC)
{
ret = dc->funcs->pSaveDC( dc );
GDI_ReleaseObj( hdc );
return ret;
}
if (!(hdcs = GetDCState16( hdc )))
{
GDI_ReleaseObj( hdc );
return 0;
}
dcs = GDI_GetObjPtr( hdcs, DC_MAGIC );
/* Copy path. The reason why path saving / restoring is in SaveDC/
* RestoreDC and not in GetDCState/SetDCState is that the ...DCState
* functions are only in Win16 (which doesn't have paths) and that
* SetDCState doesn't allow us to signal an error (which can happen
* when copying paths).
*/
if (!PATH_AssignGdiPath( &dcs->w.path, &dc->w.path ))
{
GDI_ReleaseObj( hdc );
GDI_ReleaseObj( hdcs );
DeleteDC( hdcs );
return 0;
}
dcs->header.hNext = dc->header.hNext;
dc->header.hNext = hdcs;
TRACE("(%04x): returning %d\n", hdc, dc->saveLevel+1 );
ret = ++dc->saveLevel;
GDI_ReleaseObj( hdcs );
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* RestoreDC16 (GDI.39)
*/
BOOL16 WINAPI RestoreDC16( HDC16 hdc, INT16 level )
{
return RestoreDC( hdc, level );
}
/***********************************************************************
* RestoreDC (GDI32.290)
*/
BOOL WINAPI RestoreDC( HDC hdc, INT level )
{
DC * dc, * dcs;
BOOL success;
TRACE("%04x %d\n", hdc, level );
dc = DC_GetDCPtr( hdc );
if(!dc) return FALSE;
if(dc->funcs->pRestoreDC)
{
success = dc->funcs->pRestoreDC( dc, level );
GDI_ReleaseObj( hdc );
return success;
}
if (level == -1) level = dc->saveLevel;
if ((level < 1)
/* This pair of checks disagrees with MSDN "Platform SDK:
Windows GDI" July 2000 which says all negative values
for level will be interpreted as an instance relative
to the current state. Restricting it to just -1 does
not satisfy this */
|| (level > dc->saveLevel))
{
GDI_ReleaseObj( hdc );
return FALSE;
}
success=TRUE;
while (dc->saveLevel >= level)
{
HDC16 hdcs = dc->header.hNext;
if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC )))
{
GDI_ReleaseObj( hdc );
return FALSE;
}
dc->header.hNext = dcs->header.hNext;
if (--dc->saveLevel < level)
{
SetDCState16( hdc, hdcs );
if (!PATH_AssignGdiPath( &dc->w.path, &dcs->w.path ))
/* FIXME: This might not be quite right, since we're
* returning FALSE but still destroying the saved DC state */
success=FALSE;
}
GDI_ReleaseObj( hdcs );
DeleteDC( hdcs );
}
GDI_ReleaseObj( hdc );
return success;
}
/***********************************************************************
* CreateDC16 (GDI.53)
*/
HDC16 WINAPI CreateDC16( LPCSTR driver, LPCSTR device, LPCSTR output,
const DEVMODEA *initData )
{
HDC hdc;
DC * dc;
const DC_FUNCTIONS *funcs;
char buf[300];
if (!device || !DRIVER_GetDriverName( device, buf, sizeof(buf) ))
strcpy(buf, driver);
if (!(funcs = DRIVER_FindDriver( buf ))) return 0;
if (!(dc = DC_AllocDC( funcs ))) return 0;
dc->w.flags = 0;
TRACE("(driver=%s, device=%s, output=%s): returning %04x\n",
debugstr_a(driver), debugstr_a(device), debugstr_a(output), dc->hSelf );
if (dc->funcs->pCreateDC &&
!dc->funcs->pCreateDC( dc, buf, device, output, initData ))
{
WARN("creation aborted by device\n" );
GDI_FreeObject( dc->hSelf, dc );
return 0;
}
DC_InitDC( dc );
hdc = dc->hSelf;
GDI_ReleaseObj( hdc );
return hdc;
}
/***********************************************************************
* CreateDCA (GDI32.)
*/
HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
const DEVMODEA *initData )
{
return CreateDC16( driver, device, output, (const DEVMODEA *)initData );
}
/***********************************************************************
* CreateDCW (GDI32.)
*/
HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
const DEVMODEW *initData )
{
LPSTR driverA = HEAP_strdupWtoA( GetProcessHeap(), 0, driver );
LPSTR deviceA = HEAP_strdupWtoA( GetProcessHeap(), 0, device );
LPSTR outputA = HEAP_strdupWtoA( GetProcessHeap(), 0, output );
HDC res = CreateDC16( driverA, deviceA, outputA,
(const DEVMODEA *)initData /*FIXME*/ );
HeapFree( GetProcessHeap(), 0, driverA );
HeapFree( GetProcessHeap(), 0, deviceA );
HeapFree( GetProcessHeap(), 0, outputA );
return res;
}
/***********************************************************************
* CreateIC16 (GDI.153)
*/
HDC16 WINAPI CreateIC16( LPCSTR driver, LPCSTR device, LPCSTR output,
const DEVMODEA* initData )
{
/* Nothing special yet for ICs */
return CreateDC16( driver, device, output, initData );
}
/***********************************************************************
* CreateICA (GDI32.49)
*/
HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
const DEVMODEA* initData )
{
/* Nothing special yet for ICs */
return CreateDCA( driver, device, output, initData );
}
/***********************************************************************
* CreateICW (GDI32.50)
*/
HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
const DEVMODEW* initData )
{
/* Nothing special yet for ICs */
return CreateDCW( driver, device, output, initData );
}
/***********************************************************************
* CreateCompatibleDC16 (GDI.52)
*/
HDC16 WINAPI CreateCompatibleDC16( HDC16 hdc )
{
return (HDC16)CreateCompatibleDC( hdc );
}
/***********************************************************************
* CreateCompatibleDC (GDI32.31)
*/
HDC WINAPI CreateCompatibleDC( HDC hdc )
{
DC *dc, *origDC;
const DC_FUNCTIONS *funcs;
if ((origDC = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC ))) funcs = origDC->funcs;
else funcs = DRIVER_FindDriver( "DISPLAY" );
if (!funcs || !(dc = DC_AllocDC( funcs )))
{
if (origDC) GDI_ReleaseObj( hdc );
return 0;
}
TRACE("(%04x): returning %04x\n",
hdc, dc->hSelf );
dc->w.flags = DC_MEMORY;
dc->w.bitsPerPixel = 1;
dc->w.hBitmap = hPseudoStockBitmap;
/* Copy the driver-specific physical device info into
* the new DC. The driver may use this read-only info
* while creating the compatible DC below. */
if (origDC)
dc->physDev = origDC->physDev;
if (dc->funcs->pCreateDC &&
!dc->funcs->pCreateDC( dc, NULL, NULL, NULL, NULL ))
{
WARN("creation aborted by device\n");
GDI_FreeObject( dc->hSelf, dc );
if (origDC) GDI_ReleaseObj( hdc );
return 0;
}
DC_InitDC( dc );
GDI_ReleaseObj( dc->hSelf );
if (origDC) GDI_ReleaseObj( hdc );
return dc->hSelf;
}
/***********************************************************************
* DeleteDC16 (GDI.68)
*/
BOOL16 WINAPI DeleteDC16( HDC16 hdc )
{
return DeleteDC( hdc );
}
/***********************************************************************
* DeleteDC (GDI32.67)
*/
BOOL WINAPI DeleteDC( HDC hdc )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
TRACE("%04x\n", hdc );
/* Call hook procedure to check whether is it OK to delete this DC */
if (dc->hookThunk && !(dc->w.flags & (DC_SAVED | DC_MEMORY)))
{
DCHOOKPROC proc = dc->hookThunk;
if (proc)
{
DWORD data = dc->dwHookData;
GDI_ReleaseObj( hdc );
if (!proc( hdc, DCHC_DELETEDC, data, 0 )) return FALSE;
if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
}
}
while (dc->saveLevel)
{
DC * dcs;
HDC16 hdcs = dc->header.hNext;
if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) break;
dc->header.hNext = dcs->header.hNext;
dc->saveLevel--;
GDI_ReleaseObj( hdcs );
DeleteDC( hdcs );
}
if (!(dc->w.flags & DC_SAVED))
{
SelectObject( hdc, STOCK_BLACK_PEN );
SelectObject( hdc, STOCK_WHITE_BRUSH );
SelectObject( hdc, STOCK_SYSTEM_FONT );
if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc);
}
if (dc->w.hClipRgn) DeleteObject( dc->w.hClipRgn );
if (dc->w.hVisRgn) DeleteObject( dc->w.hVisRgn );
if (dc->w.hGCClipRgn) DeleteObject( dc->w.hGCClipRgn );
if (dc->w.pAbortProc) THUNK_Free( (FARPROC)dc->w.pAbortProc );
if (dc->hookThunk) THUNK_Free( (FARPROC)dc->hookThunk );
PATH_DestroyGdiPath(&dc->w.path);
return GDI_FreeObject( hdc, dc );
}
/***********************************************************************
* ResetDC16 (GDI.376)
*/
HDC16 WINAPI ResetDC16( HDC16 hdc, const DEVMODEA *devmode )
{
FIXME("stub\n" );
return hdc;
}
/***********************************************************************
* ResetDCA (GDI32.287)
*/
HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
{
FIXME("stub\n" );
return hdc;
}
/***********************************************************************
* ResetDCW (GDI32.288)
*/
HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
{
FIXME("stub\n" );
return hdc;
}
/***********************************************************************
* GetDeviceCaps16 (GDI.80)
*/
INT16 WINAPI GetDeviceCaps16( HDC16 hdc, INT16 cap )
{
INT16 ret = GetDeviceCaps( hdc, cap );
/* some apps don't expect -1 and think it's a B&W screen */
if ((cap == NUMCOLORS) && (ret == -1)) ret = 2048;
return ret;
}
/***********************************************************************
* GetDeviceCaps (GDI32.171)
*/
INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
INT ret = 0;
POINT pt;
if (!dc) return 0;
/* Device capabilities for the printer */
switch (cap)
{
case PHYSICALWIDTH:
if(Escape(hdc, GETPHYSPAGESIZE, 0, NULL, (LPVOID)&pt) > 0) ret = pt.x;
break;
case PHYSICALHEIGHT:
if(Escape(hdc, GETPHYSPAGESIZE, 0, NULL, (LPVOID)&pt) > 0) ret = pt.y;
break;
case PHYSICALOFFSETX:
if(Escape(hdc, GETPRINTINGOFFSET, 0, NULL, (LPVOID)&pt) > 0) ret = pt.x;
break;
case PHYSICALOFFSETY:
if(Escape(hdc, GETPRINTINGOFFSET, 0, NULL, (LPVOID)&pt) > 0) ret = pt.y;
break;
case SCALINGFACTORX:
if(Escape(hdc, GETSCALINGFACTOR, 0, NULL, (LPVOID)&pt) > 0) ret = pt.x;
break;
case SCALINGFACTORY:
if(Escape(hdc, GETSCALINGFACTOR, 0, NULL, (LPVOID)&pt) > 0) ret = pt.y;
break;
default:
if ((cap < 0) || (cap > sizeof(DeviceCaps)-sizeof(WORD))) break;
if (((cap>=46) && (cap<88)) || ((cap>=92) && (cap<104)))
FIXME("(%04x,%d): unsupported DeviceCaps capability, will yield 0!\n",
hdc,cap );
ret = *(WORD *)(((char *)dc->w.devCaps) + cap);
break;
}
TRACE("(%04x,%d): returning %d\n", hdc, cap, ret );
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* SetBkColor16 (GDI.1)
*/
COLORREF WINAPI SetBkColor16( HDC16 hdc, COLORREF color )
{
return SetBkColor( hdc, color );
}
/***********************************************************************
* SetBkColor (GDI32.305)
*/
COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
{
COLORREF oldColor;
DC * dc = DC_GetDCPtr( hdc );
if (!dc) return 0x80000000;
if (dc->funcs->pSetBkColor)
oldColor = dc->funcs->pSetBkColor(dc, color);
else {
oldColor = dc->w.backgroundColor;
dc->w.backgroundColor = color;
}
GDI_ReleaseObj( hdc );
return oldColor;
}
/***********************************************************************
* SetTextColor16 (GDI.9)
*/
COLORREF WINAPI SetTextColor16( HDC16 hdc, COLORREF color )
{
return SetTextColor( hdc, color );
}
/***********************************************************************
* SetTextColor (GDI32.338)
*/
COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
{
COLORREF oldColor;
DC * dc = DC_GetDCPtr( hdc );
if (!dc) return 0x80000000;
if (dc->funcs->pSetTextColor)
oldColor = dc->funcs->pSetTextColor(dc, color);
else {
oldColor = dc->w.textColor;
dc->w.textColor = color;
}
GDI_ReleaseObj( hdc );
return oldColor;
}
/***********************************************************************
* SetTextAlign16 (GDI.346)
*/
UINT16 WINAPI SetTextAlign16( HDC16 hdc, UINT16 align )
{
return SetTextAlign( hdc, align );
}
/***********************************************************************
* SetTextAlign (GDI32.336)
*/
UINT WINAPI SetTextAlign( HDC hdc, UINT align )
{
UINT prevAlign;
DC *dc = DC_GetDCPtr( hdc );
if (!dc) return 0x0;
if (dc->funcs->pSetTextAlign)
prevAlign = dc->funcs->pSetTextAlign(dc, align);
else {
prevAlign = dc->w.textAlign;
dc->w.textAlign = align;
}
GDI_ReleaseObj( hdc );
return prevAlign;
}
/***********************************************************************
* GetDCOrgEx (GDI32.168)
*/
BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
{
DC * dc;
if (!lpp) return FALSE;
if (!(dc = (DC *) GDI_GetObjPtr( hDC, DC_MAGIC ))) return FALSE;
lpp->x = lpp->y = 0;
if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc, lpp );
lpp->x += dc->w.DCOrgX;
lpp->y += dc->w.DCOrgY;
GDI_ReleaseObj( hDC );
return TRUE;
}
/***********************************************************************
* GetDCOrg (GDI.79)
*/
DWORD WINAPI GetDCOrg16( HDC16 hdc )
{
POINT pt;
if( GetDCOrgEx( hdc, &pt) )
return MAKELONG( (WORD)pt.x, (WORD)pt.y );
return 0;
}
/***********************************************************************
* SetDCOrg (GDI.117)
*/
DWORD WINAPI SetDCOrg16( HDC16 hdc, INT16 x, INT16 y )
{
DWORD prevOrg;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return 0;
prevOrg = dc->w.DCOrgX | (dc->w.DCOrgY << 16);
dc->w.DCOrgX = x;
dc->w.DCOrgY = y;
GDI_ReleaseObj( hdc );
return prevOrg;
}
/***********************************************************************
* SetGraphicsMode (GDI32.317)
*/
INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
{
INT ret = 0;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
/* One would think that setting the graphics mode to GM_COMPATIBLE
* would also reset the world transformation matrix to the unity
* matrix. However, in Windows, this is not the case. This doesn't
* make a lot of sense to me, but that's the way it is.
*/
if (!dc) return 0;
if ((mode > 0) || (mode <= GM_LAST))
{
ret = dc->w.GraphicsMode;
dc->w.GraphicsMode = mode;
}
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* SetArcDirection16 (GDI.525)
*/
INT16 WINAPI SetArcDirection16( HDC16 hdc, INT16 nDirection )
{
return SetArcDirection( (HDC)hdc, (INT)nDirection );
}
/***********************************************************************
* SetArcDirection (GDI32.302)
*/
INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
{
DC * dc;
INT nOldDirection = 0;
if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if ((dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC )))
{
nOldDirection = dc->w.ArcDirection;
dc->w.ArcDirection = nDirection;
GDI_ReleaseObj( hdc );
}
return nOldDirection;
}
/***********************************************************************
* GetWorldTransform (GDI32.244)
*/
BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
{
DC * dc;
if (!xform) return FALSE;
if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return FALSE;
*xform = dc->w.xformWorld2Wnd;
GDI_ReleaseObj( hdc );
return TRUE;
}
/***********************************************************************
* SetWorldTransform (GDI32.346)
*/
BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
{
BOOL ret = FALSE;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
SetLastError( ERROR_INVALID_HANDLE );
return FALSE;
}
if (!xform) goto done;
/* Check that graphics mode is GM_ADVANCED */
if (dc->w.GraphicsMode!=GM_ADVANCED) goto done;
dc->w.xformWorld2Wnd = *xform;
DC_UpdateXforms( dc );
ret = TRUE;
done:
GDI_ReleaseObj( hdc );
return ret;
}
/****************************************************************************
* ModifyWorldTransform [GDI32.253]
* Modifies the world transformation for a device context.
*
* PARAMS
* hdc [I] Handle to device context
* xform [I] XFORM structure that will be used to modify the world
* transformation
* iMode [I] Specifies in what way to modify the world transformation
* Possible values:
* MWT_IDENTITY
* Resets the world transformation to the identity matrix.
* The parameter xform is ignored.
* MWT_LEFTMULTIPLY
* Multiplies xform into the world transformation matrix from
* the left.
* MWT_RIGHTMULTIPLY
* Multiplies xform into the world transformation matrix from
* the right.
*
* RETURNS STD
*/
BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
DWORD iMode )
{
BOOL ret = FALSE;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
/* Check for illegal parameters */
if (!dc)
{
SetLastError( ERROR_INVALID_HANDLE );
return FALSE;
}
if (!xform) goto done;
/* Check that graphics mode is GM_ADVANCED */
if (dc->w.GraphicsMode!=GM_ADVANCED) goto done;
switch (iMode)
{
case MWT_IDENTITY:
dc->w.xformWorld2Wnd.eM11 = 1.0f;
dc->w.xformWorld2Wnd.eM12 = 0.0f;
dc->w.xformWorld2Wnd.eM21 = 0.0f;
dc->w.xformWorld2Wnd.eM22 = 1.0f;
dc->w.xformWorld2Wnd.eDx = 0.0f;
dc->w.xformWorld2Wnd.eDy = 0.0f;
break;
case MWT_LEFTMULTIPLY:
CombineTransform( &dc->w.xformWorld2Wnd, xform,
&dc->w.xformWorld2Wnd );
break;
case MWT_RIGHTMULTIPLY:
CombineTransform( &dc->w.xformWorld2Wnd, &dc->w.xformWorld2Wnd,
xform );
break;
default:
goto done;
}
DC_UpdateXforms( dc );
ret = TRUE;
done:
GDI_ReleaseObj( hdc );
return ret;
}
/****************************************************************************
* CombineTransform [GDI32.20]
* Combines two transformation matrices.
*
* PARAMS
* xformResult [O] Stores the result of combining the two matrices
* xform1 [I] Specifies the first matrix to apply
* xform2 [I] Specifies the second matrix to apply
*
* REMARKS
* The same matrix can be passed in for more than one of the parameters.
*
* RETURNS STD
*/
BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
const XFORM *xform2 )
{
XFORM xformTemp;
/* Check for illegal parameters */
if (!xformResult || !xform1 || !xform2)
return FALSE;
/* Create the result in a temporary XFORM, since xformResult may be
* equal to xform1 or xform2 */
xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
xform1->eM12 * xform2->eM21;
xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
xform1->eM12 * xform2->eM22;
xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
xform1->eM22 * xform2->eM21;
xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
xform1->eM22 * xform2->eM22;
xformTemp.eDx = xform1->eDx * xform2->eM11 +
xform1->eDy * xform2->eM21 +
xform2->eDx;
xformTemp.eDy = xform1->eDx * xform2->eM12 +
xform1->eDy * xform2->eM22 +
xform2->eDy;
/* Copy the result to xformResult */
*xformResult = xformTemp;
return TRUE;
}
/***********************************************************************
* SetDCHook (GDI.190)
*/
/* ### start build ### */
extern WORD CALLBACK GDI_CallTo16_word_wwll(FARPROC16,WORD,WORD,LONG,LONG);
/* ### stop build ### */
BOOL16 WINAPI SetDCHook( HDC16 hdc, FARPROC16 hookProc, DWORD dwHookData )
{
DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
/*
* Note: We store the original SEGPTR 'hookProc' as we need to be
* able to return it verbatim in GetDCHook,
*
* On the other hand, we still call THUNK_Alloc and store the
* 32-bit thunk into another DC member, because THUNK_Alloc
* recognizes the (typical) case that the 'hookProc' is indeed
* the 16-bit API entry point of a built-in routine (e.g. DCHook16)
*
* We could perform that test every time the hook is about to
* be called (or else we could live with the 32->16->32 detour),
* but this way is the most efficient ...
*/
dc->hookProc = hookProc;
dc->dwHookData = dwHookData;
THUNK_Free( (FARPROC)dc->hookThunk );
dc->hookThunk = (DCHOOKPROC)
THUNK_Alloc( hookProc, (RELAY)GDI_CallTo16_word_wwll );
GDI_ReleaseObj( hdc );
return TRUE;
}
/***********************************************************************
* GetDCHook (GDI.191)
*/
DWORD WINAPI GetDCHook( HDC16 hdc, FARPROC16 *phookProc )
{
DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return 0;
*phookProc = dc->hookProc;
GDI_ReleaseObj( hdc );
return dc->dwHookData;
}
/***********************************************************************
* SetHookFlags (GDI.192)
*/
WORD WINAPI SetHookFlags16(HDC16 hDC, WORD flags)
{
DC* dc = (DC*)GDI_GetObjPtr( hDC, DC_MAGIC );
if( dc )
{
WORD wRet = dc->w.flags & DC_DIRTY;
/* "Undocumented Windows" info is slightly confusing.
*/
TRACE("hDC %04x, flags %04x\n",hDC,flags);
if( flags & DCHF_INVALIDATEVISRGN )
dc->w.flags |= DC_DIRTY;
else if( flags & DCHF_VALIDATEVISRGN || !flags )
dc->w.flags &= ~DC_DIRTY;
GDI_ReleaseObj( hDC );
return wRet;
}
return 0;
}
/***********************************************************************
* SetICMMode (GDI32.318)
*/
INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
{
/*FIXME Asuming that ICM is always off, and cannot be turned on */
if (iEnableICM == ICM_OFF) return ICM_OFF;
if (iEnableICM == ICM_ON) return 0;
if (iEnableICM == ICM_QUERY) return ICM_OFF;
return 0;
}
/***********************************************************************
* GetColorSpace (GDI32.165)
*/
HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
{
/*FIXME Need to to whatever GetColorSpace actually does */
return 0;
}
/***********************************************************************
* CreateColorSpaceA (GDI32.???)
*/
HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
{
FIXME( "stub\n" );
return 0;
}
/***********************************************************************
* CreateColorSpaceW (GDI32.???)
*/
HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
{
FIXME( "stub\n" );
return 0;
}
/***********************************************************************
* DeleteColorSpace (GDI32.???)
*/
BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
{
FIXME( "stub\n" );
return TRUE;
}
/***********************************************************************
* SetColorSpace (GDI32.???)
*/
HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
{
FIXME( "stub\n" );
return hColorSpace;
}
/***********************************************************************
* GetBoundsRect16 (GDI.194)
*/
UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
{
return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
}
/***********************************************************************
* GetBoundsRect (GDI32.147)
*/
UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
{
FIXME("(): stub\n");
return DCB_RESET; /* bounding rectangle always empty */
}
/***********************************************************************
* SetBoundsRect16 (GDI.193)
*/
UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
{
if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
FIXME("(%04x, %p, %04x): stub\n", hdc, rect, flags );
return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
}
/***********************************************************************
* SetBoundsRect (GDI32.307)
*/
UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
{
FIXME("(): stub\n");
return DCB_DISABLE; /* bounding rectangle always empty */
}
/***********************************************************************
* GetRelAbs (GDI32.218)
*/
INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return 0;
return dc->w.relAbsMode;
}
/***********************************************************************
* Death (GDI.121)
*
* Disables GDI, switches back to text mode.
* We don't have to do anything here,
* just let console support handle everything
*/
void WINAPI Death16(HDC16 hDC)
{
MESSAGE("Death(%04x) called. Application enters text mode...\n", hDC);
}
/***********************************************************************
* Resurrection (GDI.122)
*
* Restores GDI functionality
*/
void WINAPI Resurrection16(HDC16 hDC,
WORD w1, WORD w2, WORD w3, WORD w4, WORD w5, WORD w6)
{
MESSAGE("Resurrection(%04x, %04x, %04x, %04x, %04x, %04x, %04x) called. Application left text mode.\n", hDC, w1, w2, w3, w4, w5, w6);
}
/***********************************************************************
* GetLayout (GDI32.321)
*
* Gets left->right or right->left text layout flags of a dc.
* win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
*
*/
DWORD WINAPI GetLayout(HDC hdc)
{
FIXME("(%08x): stub\n", hdc);
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return 0;
}
/***********************************************************************
* SetLayout (GDI32.450)
*
* Sets left->right or right->left text layout flags of a dc.
* win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
*
*/
DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
{
FIXME("(%08x,%08lx): stub\n", hdc, layout);
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return 0;
}