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Sweden-Number/objects/dc.c

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/*
* GDI Device Context functions
*
* Copyright 1993 Alexandre Julliard
*
*/
#include <stdlib.h>
#include <string.h>
#include "gdi.h"
#include "bitmap.h"
#include "metafile.h"
#include "stddebug.h"
#include "color.h"
#include "debug.h"
#include "font.h"
#include "callback.h"
#include "xmalloc.h"
static DeviceCaps * displayDevCaps = NULL;
extern void CLIPPING_UpdateGCRegion( DC * dc ); /* objects/clipping.c */
extern BOOL DCHook( HDC, WORD, DWORD, DWORD ); /* windows/dce.c */
/* Default DC values */
static const WIN_DC_INFO DC_defaultValues =
{
0, /* flags */
NULL, /* devCaps */
0, /* hMetaFile */
0, /* hClipRgn */
0, /* hVisRgn */
0, /* hGCClipRgn */
STOCK_BLACK_PEN, /* hPen */
STOCK_WHITE_BRUSH, /* hBrush */
STOCK_SYSTEM_FONT, /* hFont */
0, /* hBitmap */
0, /* hFirstBitmap */
0, /* hDevice */
STOCK_DEFAULT_PALETTE, /* hPalette */
R2_COPYPEN, /* ROPmode */
ALTERNATE, /* polyFillMode */
BLACKONWHITE, /* stretchBltMode */
ABSOLUTE, /* relAbsMode */
OPAQUE, /* backgroundMode */
RGB( 255, 255, 255 ), /* backgroundColor */
RGB( 0, 0, 0 ), /* textColor */
0, /* backgroundPixel */
0, /* textPixel */
0, /* brushOrgX */
0, /* brushOrgY */
TA_LEFT | TA_TOP | TA_NOUPDATECP, /* textAlign */
0, /* charExtra */
0, /* breakTotalExtra */
0, /* breakCount */
0, /* breakExtra */
0, /* breakRem */
1, /* bitsPerPixel */
MM_TEXT, /* MapMode */
0, /* DCOrgX */
0, /* DCOrgY */
0, /* CursPosX */
0, /* CursPosY */
0, /* WndOrgX */
0, /* WndOrgY */
1, /* WndExtX */
1, /* WndExtY */
0, /* VportOrgX */
0, /* VportOrgY */
1, /* VportExtX */
1 /* VportExtY */
};
/* ROP code to GC function conversion */
const int DC_XROPfunction[16] =
{
GXclear, /* R2_BLACK */
GXnor, /* R2_NOTMERGEPEN */
GXandInverted, /* R2_MASKNOTPEN */
GXcopyInverted, /* R2_NOTCOPYPEN */
GXandReverse, /* R2_MASKPENNOT */
GXinvert, /* R2_NOT */
GXxor, /* R2_XORPEN */
GXnand, /* R2_NOTMASKPEN */
GXand, /* R2_MASKPEN */
GXequiv, /* R2_NOTXORPEN */
GXnoop, /* R2_NOP */
GXorInverted, /* R2_MERGENOTPEN */
GXcopy, /* R2_COPYPEN */
GXorReverse, /* R2_MERGEPENNOT */
GXor, /* R2_MERGEPEN */
GXset /* R2_WHITE */
};
/***********************************************************************
* DC_FillDevCaps
*
* Fill the device caps structure.
*/
void DC_FillDevCaps( DeviceCaps * caps )
{
caps->version = 0x300;
caps->technology = DT_RASDISPLAY;
caps->horzSize = WidthMMOfScreen(screen) * screenWidth / WidthOfScreen(screen);
caps->vertSize = HeightMMOfScreen(screen) * screenHeight / HeightOfScreen(screen);
caps->horzRes = screenWidth;
caps->vertRes = screenHeight;
caps->bitsPixel = screenDepth;
caps->planes = 1;
caps->numBrushes = 16+6; /* 16 solid + 6 hatched brushes */
caps->numPens = 16; /* 16 solid pens */
caps->numMarkers = 0;
caps->numFonts = 0;
caps->numColors = 1 << caps->bitsPixel;
caps->pdeviceSize = 0;
caps->curveCaps = CC_CIRCLES | CC_PIE | CC_CHORD | CC_ELLIPSES |
CC_WIDE | CC_STYLED | CC_WIDESTYLED |
CC_INTERIORS | CC_ROUNDRECT;
caps->lineCaps = LC_POLYLINE | LC_MARKER | LC_POLYMARKER | LC_WIDE |
LC_STYLED | LC_WIDESTYLED | LC_INTERIORS;
caps->polygonalCaps = PC_POLYGON | PC_RECTANGLE | PC_WINDPOLYGON |
PC_SCANLINE | PC_WIDE | PC_STYLED |
PC_WIDESTYLED | PC_INTERIORS;
caps->textCaps = TC_OP_CHARACTER | TC_OP_STROKE | TC_CP_STROKE |
TC_IA_ABLE | TC_UA_ABLE | TC_SO_ABLE | TC_RA_ABLE;
caps->clipCaps = CP_REGION;
caps->rasterCaps = RC_BITBLT | RC_BANDING | RC_SCALING | RC_BITMAP64 |
RC_DI_BITMAP | RC_PALETTE | RC_DIBTODEV | RC_BIGFONT|
RC_STRETCHBLT | RC_STRETCHDIB | RC_DEVBITS;
caps->aspectX = 36; /* ?? */
caps->aspectY = 36; /* ?? */
caps->aspectXY = 51;
caps->logPixelsX = (int)(caps->horzRes * 25.4 / caps->horzSize);
caps->logPixelsY = (int)(caps->vertRes * 25.4 / caps->vertSize);
caps->sizePalette = DefaultVisual(display,DefaultScreen(display))->map_entries;
caps->numReserved = 0;
caps->colorRes = 0;
}
/***********************************************************************
* DC_InitDC
*
* Setup device-specific DC values for a newly created DC.
*/
void DC_InitDC( DC* dc )
{
RealizeDefaultPalette( 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 );
XSetGraphicsExposures( display, dc->u.x.gc, False );
XSetSubwindowMode( display, dc->u.x.gc, IncludeInferiors );
CLIPPING_UpdateGCRegion( dc );
}
/***********************************************************************
* DC_SetupGCForPatBlt
*
* Setup the GC for a PatBlt operation using current brush.
* If fMapColors is TRUE, X pixels are mapped to Windows colors.
* Return FALSE if brush is BS_NULL, TRUE otherwise.
*/
BOOL DC_SetupGCForPatBlt( DC * dc, GC gc, BOOL fMapColors )
{
XGCValues val;
unsigned long mask;
Pixmap pixmap = 0;
if (dc->u.x.brush.style == BS_NULL) return FALSE;
if (dc->u.x.brush.pixel == -1)
{
/* Special case used for monochrome pattern brushes.
* We need to swap foreground and background because
* Windows does it the wrong way...
*/
val.foreground = dc->w.backgroundPixel;
val.background = dc->w.textPixel;
}
else
{
val.foreground = dc->u.x.brush.pixel;
val.background = dc->w.backgroundPixel;
}
if (fMapColors && COLOR_PixelToPalette)
{
val.foreground = COLOR_PixelToPalette[val.foreground];
val.background = COLOR_PixelToPalette[val.background];
}
if (dc->w.flags & DC_DIRTY) CLIPPING_UpdateGCRegion(dc);
val.function = DC_XROPfunction[dc->w.ROPmode-1];
val.fill_style = dc->u.x.brush.fillStyle;
switch(val.fill_style)
{
case FillStippled:
case FillOpaqueStippled:
if (dc->w.backgroundMode==OPAQUE) val.fill_style = FillOpaqueStippled;
val.stipple = dc->u.x.brush.pixmap;
mask = GCStipple;
break;
case FillTiled:
if (fMapColors && COLOR_PixelToPalette)
{
register int x, y;
XImage *image;
pixmap = XCreatePixmap( display, rootWindow, 8, 8, screenDepth );
image = XGetImage( display, dc->u.x.brush.pixmap, 0, 0, 8, 8,
AllPlanes, ZPixmap );
for (y = 0; y < 8; y++)
for (x = 0; x < 8; x++)
XPutPixel( image, x, y,
COLOR_PixelToPalette[XGetPixel( image, x, y)] );
XPutImage( display, pixmap, gc, image, 0, 0, 0, 0, 8, 8 );
XDestroyImage( image );
val.tile = pixmap;
}
else val.tile = dc->u.x.brush.pixmap;
mask = GCTile;
break;
default:
mask = 0;
break;
}
val.ts_x_origin = dc->w.DCOrgX + dc->w.brushOrgX;
val.ts_y_origin = dc->w.DCOrgY + dc->w.brushOrgY;
val.fill_rule = (dc->w.polyFillMode==WINDING) ? WindingRule : EvenOddRule;
XChangeGC( display, gc,
GCFunction | GCForeground | GCBackground | GCFillStyle |
GCFillRule | GCTileStipXOrigin | GCTileStipYOrigin | mask,
&val );
if (pixmap) XFreePixmap( display, pixmap );
return TRUE;
}
/***********************************************************************
* DC_SetupGCForBrush
*
* Setup dc->u.x.gc for drawing operations using current brush.
* Return FALSE if brush is BS_NULL, TRUE otherwise.
*/
BOOL DC_SetupGCForBrush( DC * dc )
{
return DC_SetupGCForPatBlt( dc, dc->u.x.gc, FALSE );
}
/***********************************************************************
* DC_SetupGCForPen
*
* Setup dc->u.x.gc for drawing operations using current pen.
* Return FALSE if pen is PS_NULL, TRUE otherwise.
*/
BOOL DC_SetupGCForPen( DC * dc )
{
XGCValues val;
if (dc->u.x.pen.style == PS_NULL) return FALSE;
if (dc->w.flags & DC_DIRTY) CLIPPING_UpdateGCRegion(dc);
if ((screenDepth <= 8) && /* FIXME: Should check for palette instead */
((dc->w.ROPmode == R2_BLACK) || (dc->w.ROPmode == R2_WHITE)))
{
val.function = GXcopy;
val.foreground = COLOR_ToPhysical( NULL, (dc->w.ROPmode == R2_BLACK) ?
RGB(0,0,0) : RGB(255,255,255) );
}
else
{
val.function = DC_XROPfunction[dc->w.ROPmode-1];
val.foreground = dc->u.x.pen.pixel;
}
val.background = dc->w.backgroundPixel;
val.fill_style = FillSolid;
if ((dc->u.x.pen.style!=PS_SOLID) && (dc->u.x.pen.style!=PS_INSIDEFRAME))
{
XSetDashes( display, dc->u.x.gc, 0,
dc->u.x.pen.dashes, dc->u.x.pen.dash_len );
val.line_style = (dc->w.backgroundMode == OPAQUE) ?
LineDoubleDash : LineOnOffDash;
}
else val.line_style = LineSolid;
val.line_width = dc->u.x.pen.width;
val.cap_style = CapRound;
val.join_style = JoinBevel;
XChangeGC( display, dc->u.x.gc,
GCFunction | GCForeground | GCBackground | GCLineWidth |
GCLineStyle | GCCapStyle | GCJoinStyle | GCFillStyle, &val );
return TRUE;
}
/***********************************************************************
* DC_SetupGCForText
*
* Setup dc->u.x.gc for text drawing operations.
* Return FALSE if the font is null, TRUE otherwise.
*/
BOOL DC_SetupGCForText( DC * dc )
{
XGCValues val;
if (!dc->u.x.font.fstruct)
{
fprintf( stderr, "DC_SetupGCForText: fstruct is NULL. Please report this\n" );
return FALSE;
}
if (dc->w.flags & DC_DIRTY) CLIPPING_UpdateGCRegion(dc);
val.function = GXcopy; /* Text is always GXcopy */
val.foreground = dc->w.textPixel;
val.background = dc->w.backgroundPixel;
val.fill_style = FillSolid;
val.font = dc->u.x.font.fstruct->fid;
XChangeGC( display, dc->u.x.gc,
GCFunction | GCForeground | GCBackground | GCFillStyle |
GCFont, &val );
return TRUE;
}
/***********************************************************************
* DC_CallHookProc
*/
BOOL DC_CallHookProc(DC* dc, WORD code, LPARAM lParam)
{
BOOL bRet = 0;
FARPROC ptr = GDI_GetDefDCHook();
dprintf_dc(stddeb,"CallDCHook: code %04x\n", code);
/* if 16-bit callback is, in fact, a thunk to DCHook simply call DCHook */
if( dc->hookProc && !(dc->w.flags & (DC_SAVED | DC_MEMORY)) )
bRet = (dc->hookProc == ptr) ?
DCHook(dc->hSelf, code, dc->dwHookData, lParam):
CallDCHookProc(dc->hookProc, dc->hSelf, code, dc->dwHookData, lParam);
return bRet;
}
/***********************************************************************
* GetDCState (GDI.179)
*/
HDC GetDCState( HDC hdc )
{
DC * newdc, * dc;
HANDLE handle;
if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
if (!(handle = GDI_AllocObject( sizeof(DC), DC_MAGIC ))) return 0;
newdc = (DC *) GDI_HEAP_LIN_ADDR( handle );
dprintf_dc(stddeb, "GetDCState(%04x): returning %04x\n", hdc, handle );
memset( &newdc->u.x, 0, sizeof(newdc->u.x) );
memcpy( &newdc->w, &dc->w, sizeof(dc->w) );
memcpy( &newdc->u.x.pen, &dc->u.x.pen, sizeof(dc->u.x.pen) );
newdc->hSelf = (HDC)handle;
newdc->saveLevel = 0;
newdc->w.flags |= DC_SAVED;
newdc->w.hGCClipRgn = 0;
newdc->w.hVisRgn = CreateRectRgn( 0, 0, 0, 0 );
CombineRgn( newdc->w.hVisRgn, dc->w.hVisRgn, 0, RGN_COPY );
if (dc->w.hClipRgn)
{
newdc->w.hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
CombineRgn( newdc->w.hClipRgn, dc->w.hClipRgn, 0, RGN_COPY );
}
COLOR_SetMapping( newdc, dc->u.x.pal.hMapping,
dc->u.x.pal.hRevMapping, dc->u.x.pal.mappingSize );
return handle;
}
/***********************************************************************
* SetDCState (GDI.180)
*/
void SetDCState( HDC hdc, HDC hdcs )
{
DC * dc, * dcs;
HRGN hVisRgn, hClipRgn, hGCClipRgn;
HFONT hfont;
HBRUSH hbrush;
if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return;
if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) return;
if (!dcs->w.flags & DC_SAVED) return;
dprintf_dc(stddeb, "SetDCState: %04x %04x\n", hdc, hdcs );
/* Save the regions, font & brush before overwriting everything */
hVisRgn = dc->w.hVisRgn;
hClipRgn = dc->w.hClipRgn;
hGCClipRgn = dc->w.hGCClipRgn;
hfont = dc->w.hFont;
hbrush = dc->w.hBrush;
memcpy( &dc->w, &dcs->w, sizeof(dc->w) );
memcpy( &dc->u.x.pen, &dcs->u.x.pen, sizeof(dc->u.x.pen) );
dc->w.flags &= ~DC_SAVED;
/* Restore the regions */
dc->w.hVisRgn = hVisRgn;
dc->w.hClipRgn = hClipRgn;
dc->w.hGCClipRgn = hGCClipRgn;
dc->w.hFont = hfont;
dc->w.hBrush = hbrush;
CombineRgn( dc->w.hVisRgn, dcs->w.hVisRgn, 0, RGN_COPY );
SelectClipRgn( hdc, dcs->w.hClipRgn );
SelectObject( hdc, dcs->w.hBrush );
SelectObject( hdc, dcs->w.hFont );
COLOR_SetMapping( dc, dcs->u.x.pal.hMapping,
dcs->u.x.pal.hRevMapping, dcs->u.x.pal.mappingSize );
}
/***********************************************************************
* SaveDC (GDI.30)
*/
int SaveDC( HDC hdc )
{
HDC hdcs;
DC * dc, * dcs;
dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return 0;
MF_MetaParam0(dc, META_SAVEDC);
return 1; /* ?? */
}
if (!(hdcs = GetDCState( hdc ))) return 0;
dcs = (DC *) GDI_HEAP_LIN_ADDR( hdcs );
dcs->header.hNext = dc->header.hNext;
dc->header.hNext = hdcs;
dprintf_dc(stddeb, "SaveDC(%04x): returning %d\n", hdc, dc->saveLevel+1 );
return ++dc->saveLevel;
}
/***********************************************************************
* RestoreDC (GDI.39)
*/
BOOL RestoreDC( HDC hdc, short level )
{
DC * dc, * dcs;
dprintf_dc(stddeb, "RestoreDC: %04x %d\n", hdc, level );
dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return FALSE;
if (level != -1) return FALSE;
MF_MetaParam1(dc, META_RESTOREDC, level);
return TRUE;
}
if (level == -1) level = dc->saveLevel;
if ((level < 1) || (level > (short)dc->saveLevel)) return FALSE;
while ((short)dc->saveLevel >= level)
{
HDC hdcs = dc->header.hNext;
if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) return FALSE;
dc->header.hNext = dcs->header.hNext;
if ((short)--dc->saveLevel < level) SetDCState( hdc, hdcs );
DeleteDC( hdcs );
}
return TRUE;
}
/***********************************************************************
* CreateDC (GDI.53)
*/
HDC CreateDC( LPCSTR driver, LPCSTR device, LPCSTR output, const DEVMODE* initData )
{
DC * dc;
HANDLE handle;
handle = GDI_AllocObject( sizeof(DC), DC_MAGIC );
if (!handle) return 0;
dc = (DC *) GDI_HEAP_LIN_ADDR( handle );
dprintf_dc(stddeb, "CreateDC(%s %s %s): returning %04x\n",
driver, device, output, handle );
if (!displayDevCaps)
{
displayDevCaps = (DeviceCaps *) xmalloc( sizeof(DeviceCaps) );
DC_FillDevCaps( displayDevCaps );
}
dc->hSelf = (HDC)handle;
dc->saveLevel = 0;
dc->dwHookData = 0L;
dc->hookProc = (SEGPTR)NULL;
memcpy( &dc->w, &DC_defaultValues, sizeof(DC_defaultValues) );
memset( &dc->u.x, 0, sizeof(dc->u.x) );
dc->u.x.drawable = rootWindow;
dc->u.x.gc = XCreateGC( display, dc->u.x.drawable, 0, NULL );
dc->w.flags = 0;
dc->w.devCaps = displayDevCaps;
dc->w.bitsPerPixel = displayDevCaps->bitsPixel;
dc->w.hVisRgn = CreateRectRgn( 0, 0, displayDevCaps->horzRes,
displayDevCaps->vertRes );
if (!dc->w.hVisRgn)
{
GDI_HEAP_FREE( handle );
return 0;
}
DC_InitDC( dc );
return handle;
}
/***********************************************************************
* CreateIC (GDI.153)
*/
HDC CreateIC( LPCSTR driver, LPCSTR device, LPCSTR output, const DEVMODE* initData )
{
/* Nothing special yet for ICs */
return CreateDC( driver, device, output, initData );
}
/***********************************************************************
* CreateCompatibleDC (GDI.52)
*/
HDC CreateCompatibleDC( HDC hdc )
{
DC * dc;
HANDLE handle;
HBITMAP hbitmap;
BITMAPOBJ *bmp;
handle = GDI_AllocObject( sizeof(DC), DC_MAGIC );
if (!handle) return 0;
dc = (DC *) GDI_HEAP_LIN_ADDR( handle );
dprintf_dc(stddeb, "CreateCompatibleDC(%04x): returning %04x\n", hdc, handle );
/* Create default bitmap */
if (!(hbitmap = CreateBitmap( 1, 1, 1, 1, NULL )))
{
GDI_HEAP_FREE( handle );
return 0;
}
bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
dc->hSelf = (HDC)handle;
dc->saveLevel = 0;
dc->dwHookData = 0L;
dc->hookProc = (SEGPTR)NULL;
memcpy( &dc->w, &DC_defaultValues, sizeof(DC_defaultValues) );
memset( &dc->u.x, 0, sizeof(dc->u.x) );
dc->u.x.drawable = bmp->pixmap;
dc->u.x.gc = XCreateGC( display, dc->u.x.drawable, 0, NULL );
dc->w.flags = DC_MEMORY;
dc->w.bitsPerPixel = 1;
dc->w.devCaps = displayDevCaps;
dc->w.hBitmap = hbitmap;
dc->w.hFirstBitmap = hbitmap;
dc->w.hVisRgn = CreateRectRgn( 0, 0, 1, 1 );
if (!dc->w.hVisRgn)
{
DeleteObject( hbitmap );
GDI_HEAP_FREE( handle );
return 0;
}
DC_InitDC( dc );
return handle;
}
/***********************************************************************
* DeleteDC (GDI.68)
*/
BOOL DeleteDC( HDC hdc )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return FALSE;
dprintf_dc(stddeb, "DeleteDC: %04x\n", hdc );
while (dc->saveLevel)
{
DC * dcs;
HDC hdcs = dc->header.hNext;
if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) break;
dc->header.hNext = dcs->header.hNext;
dc->saveLevel--;
DeleteDC( hdcs );
}
if (!(dc->w.flags & DC_SAVED))
{
SelectObject( hdc, STOCK_BLACK_PEN );
SelectObject( hdc, STOCK_WHITE_BRUSH );
SelectObject( hdc, STOCK_SYSTEM_FONT );
XFreeGC( display, dc->u.x.gc );
if (dc->w.flags & DC_MEMORY) DeleteObject( dc->w.hFirstBitmap );
}
if (dc->w.hClipRgn) DeleteObject( dc->w.hClipRgn );
if (dc->w.hVisRgn) DeleteObject( dc->w.hVisRgn );
if (dc->w.hGCClipRgn) DeleteObject( dc->w.hGCClipRgn );
return GDI_FreeObject( hdc );
}
/***********************************************************************
* ResetDC (GDI.376)
*/
HDC ResetDC( HDC hdc, /* DEVMODE */ void *devmode )
{
fprintf( stderr, "ResetDC: empty stub!\n" );
return hdc;
}
/***********************************************************************
* GetDeviceCaps (GDI.80)
*/
int GetDeviceCaps( HDC hdc, WORD cap )
{
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return 0;
if (cap > sizeof(DeviceCaps)-sizeof(WORD)) return 0;
dprintf_dc(stddeb, "GetDeviceCaps(%04x,%d): returning %d\n",
hdc, cap, *(WORD *)(((char *)dc->w.devCaps) + cap) );
return *(WORD *)(((char *)dc->w.devCaps) + cap);
}
/***********************************************************************
* SetBkColor (GDI.1)
*/
COLORREF SetBkColor( HDC hdc, COLORREF color )
{
COLORREF oldColor;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return 0x80000000;
MF_MetaParam2(dc, META_SETBKCOLOR, HIWORD(color), LOWORD(color));
return 0; /* ?? */
}
oldColor = dc->w.backgroundColor;
dc->w.backgroundColor = color;
dc->w.backgroundPixel = COLOR_ToPhysical( dc, color );
return oldColor;
}
/***********************************************************************
* SetTextColor (GDI.9)
*/
COLORREF SetTextColor( HDC hdc, COLORREF color )
{
COLORREF oldColor;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return 0x80000000;
MF_MetaParam2(dc, META_SETTEXTCOLOR, HIWORD(color), LOWORD(color));
return 0; /* ?? */
}
oldColor = dc->w.textColor;
dc->w.textColor = color;
dc->w.textPixel = COLOR_ToPhysical( dc, color );
return oldColor;
}
/***********************************************************************
* SetTextAlign (GDI.346)
*/
WORD SetTextAlign( HDC hdc, WORD textAlign )
{
WORD prevAlign;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
if (!(dc = (DC *)GDI_GetObjPtr( hdc, METAFILE_DC_MAGIC ))) return 0;
MF_MetaParam1( dc, META_SETTEXTALIGN, textAlign );
return 1;
}
prevAlign = dc->w.textAlign;
dc->w.textAlign = textAlign;
return prevAlign;
}
/***********************************************************************
* GetDCOrg (GDI.79)
*/
DWORD GetDCOrg( HDC hdc )
{
Window root;
int x, y, w, h, border, depth;
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc) return 0;
if (dc->w.flags & DC_MEMORY) return 0;
XGetGeometry( display, dc->u.x.drawable, &root,
&x, &y, &w, &h, &border, &depth );
return MAKELONG( dc->w.DCOrgX + (WORD)x, dc->w.DCOrgY + (WORD)y );
}
/***********************************************************************
* SetDCOrg (GDI.117)
*/
DWORD SetDCOrg( HDC hdc, short x, short 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;
return prevOrg;
}
/***********************************************************************
* SetDCHook (GDI.190)
*/
BOOL SetDCHook( HDC hDC, FARPROC16 hookProc, DWORD dwHookData )
{
DC *dc = (DC *)GDI_GetObjPtr( hDC, DC_MAGIC );
dprintf_dc( stddeb, "SetDCHook: hookProc %08x, default is %08x\n",
(unsigned)hookProc,(unsigned)GDI_GetDefDCHook() );
if (!dc) return FALSE;
dc->hookProc = hookProc;
dc->dwHookData = dwHookData;
return TRUE;
}
/***********************************************************************
* GetDCHook (GDI.191)
*/
DWORD GetDCHook( HDC hDC, FARPROC16 *phookProc )
{
DC *dc = (DC *)GDI_GetObjPtr( hDC, DC_MAGIC );
if (!dc) return 0;
*phookProc = dc->hookProc;
return dc->dwHookData;
}
/***********************************************************************
* SetHookFlags (GDI.192)
*/
WORD SetHookFlags(HDC 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
*/
dprintf_dc(stddeb,"SetHookFlags: 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;
return wRet;
}
return 0;
}
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