| /* |
| * GDI Device Context functions |
| * |
| * Copyright 1993 Alexandre Julliard |
| */ |
| |
| static char Copyright[] = "Copyright Alexandre Julliard, 1993"; |
| |
| #include <stdlib.h> |
| #include <string.h> |
| #include "gdi.h" |
| #include "bitmap.h" |
| |
| static DeviceCaps * displayDevCaps = NULL; |
| |
| extern const WIN_DC_INFO DCVAL_defaultValues; |
| |
| extern void CLIPPING_SetDeviceClipping( DC * dc ); /* objects/clipping.c */ |
| extern WORD COLOR_ToPhysical( DC *dc, COLORREF color );/* objects/color.c */ |
| extern void COLOR_SetMapping( DC *dc, HANDLE, WORD ); /* objects/color.c */ |
| |
| |
| /* 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 = 0; |
| caps->numPens = 0; |
| 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. |
| */ |
| static void DC_InitDC( HDC hdc ) |
| { |
| DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ); |
| RealizeDefaultPalette( hdc ); |
| SetTextColor( hdc, dc->w.textColor ); |
| SetBkColor( hdc, dc->w.backgroundColor ); |
| SelectObject( hdc, dc->w.hPen ); |
| SelectObject( hdc, dc->w.hBrush ); |
| SelectObject( hdc, dc->w.hFont ); |
| XSetGraphicsExposures( XT_display, dc->u.x.gc, False ); |
| CLIPPING_SetDeviceClipping( dc ); |
| } |
| |
| |
| /*********************************************************************** |
| * DC_SetupDCForBrush |
| * |
| * Setup dc->u.x.gc for drawing operations using current brush. |
| * Return 0 if brush is BS_NULL, 1 otherwise. |
| */ |
| int DC_SetupGCForBrush( DC * dc ) |
| { |
| XGCValues val; |
| unsigned long mask = 0; |
| |
| if (dc->u.x.brush.style == BS_NULL) return 0; |
| 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; |
| } |
| val.function = DC_XROPfunction[dc->w.ROPmode-1]; |
| val.fill_style = dc->u.x.brush.fillStyle; |
| if (val.fill_style == FillStippled) |
| { |
| if (dc->w.backgroundMode==OPAQUE) val.fill_style = FillOpaqueStippled; |
| val.stipple = dc->u.x.brush.pixmap; |
| mask = GCStipple; |
| } |
| else if (val.fill_style == FillTiled) |
| { |
| val.tile = dc->u.x.brush.pixmap; |
| mask = GCTile; |
| } |
| 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, dc->u.x.gc, |
| GCFunction | GCForeground | GCBackground | GCFillStyle | |
| GCFillRule | GCTileStipXOrigin | GCTileStipYOrigin | mask, |
| &val ); |
| return 1; |
| } |
| |
| |
| /*********************************************************************** |
| * DC_SetupDCForPen |
| * |
| * Setup dc->u.x.gc for drawing operations using current pen. |
| * Return 0 if pen is PS_NULL, 1 otherwise. |
| */ |
| int DC_SetupGCForPen( DC * dc ) |
| { |
| XGCValues val; |
| |
| if (dc->u.x.pen.style == PS_NULL) return 0; |
| 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 1; |
| } |
| |
| |
| /*********************************************************************** |
| * DC_SetupDCForText |
| * |
| * Setup dc->u.x.gc for text drawing operations. |
| * Return 0 if the font is null, 1 otherwise. |
| */ |
| int DC_SetupGCForText( DC * dc ) |
| { |
| XGCValues val; |
| |
| if (!dc->u.x.font.fstruct) |
| { |
| FONT_SelectObject(dc, STOCK_SYSTEM_FIXED_FONT, NULL); |
| } |
| val.function = DC_XROPfunction[dc->w.ROPmode-1]; |
| 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 1; |
| } |
| |
| |
| /*********************************************************************** |
| * 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_ADDR( handle ); |
| |
| #ifdef DEBUG_DC |
| printf( "GetDCState(%d): returning %d\n", hdc, handle ); |
| #endif |
| |
| memcpy( &newdc->w, &dc->w, sizeof(dc->w) ); |
| newdc->saveLevel = 0; |
| newdc->w.flags |= DC_SAVED; |
| |
| if (dc->w.hClipRgn) |
| { |
| newdc->w.hClipRgn = CreateRectRgn( 0, 0, 0, 0 ); |
| CombineRgn( newdc->w.hClipRgn, dc->w.hClipRgn, 0, RGN_COPY ); |
| } |
| if (dc->w.hVisRgn) |
| { |
| newdc->w.hVisRgn = CreateRectRgn( 0, 0, 0, 0 ); |
| CombineRgn( newdc->w.hVisRgn, dc->w.hVisRgn, 0, RGN_COPY ); |
| } |
| newdc->w.hGCClipRgn = 0; |
| COLOR_SetMapping( newdc, dc->u.x.pal.hMapping, dc->u.x.pal.mappingSize ); |
| return handle; |
| } |
| |
| |
| /*********************************************************************** |
| * SetDCState (GDI.180) |
| */ |
| void SetDCState( HDC hdc, HDC hdcs ) |
| { |
| DC * dc, * dcs; |
| |
| 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; |
| #ifdef DEBUG_DC |
| printf( "SetDCState: %d %d\n", hdc, hdcs ); |
| #endif |
| if (dc->w.hClipRgn) DeleteObject( dc->w.hClipRgn ); |
| if (dc->w.hVisRgn) DeleteObject( dc->w.hVisRgn ); |
| if (dc->w.hGCClipRgn) DeleteObject( dc->w.hGCClipRgn ); |
| |
| memcpy( &dc->w, &dcs->w, sizeof(dc->w) ); |
| memcpy( &dc->u.x.pen, &dcs->u.x.pen, sizeof(dc->u.x.pen) ); |
| dc->w.hClipRgn = dc->w.hVisRgn = dc->w.hGCClipRgn = 0; |
| dc->w.flags &= ~DC_SAVED; |
| |
| SelectObject( hdc, dcs->w.hBrush ); |
| SelectObject( hdc, dcs->w.hFont ); |
| COLOR_SetMapping( dc, dcs->u.x.pal.hMapping, dcs->u.x.pal.mappingSize ); |
| |
| SelectClipRgn( hdc, dcs->w.hClipRgn ); |
| SelectVisRgn( hdc, dcs->w.hVisRgn ); |
| } |
| |
| |
| /*********************************************************************** |
| * SaveDC (GDI.30) |
| */ |
| int SaveDC( HDC hdc ) |
| { |
| HDC hdcs; |
| DC * dc, * dcs; |
| |
| if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0; |
| if (!(hdcs = GetDCState( hdc ))) return 0; |
| dcs = (DC *) GDI_HEAP_ADDR( hdcs ); |
| dcs->header.hNext = dc->header.hNext; |
| dc->header.hNext = hdcs; |
| #ifdef DEBUG_DC |
| printf( "SaveDC(%d): returning %d\n", hdc, dc->saveLevel+1 ); |
| #endif |
| return ++dc->saveLevel; |
| } |
| |
| |
| /*********************************************************************** |
| * RestoreDC (GDI.39) |
| */ |
| BOOL RestoreDC( HDC hdc, short level ) |
| { |
| DC * dc, * dcs; |
| |
| #ifdef DEBUG_DC |
| printf( "RestoreDC: %d %d\n", hdc, level ); |
| #endif |
| if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return FALSE; |
| 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( LPSTR driver, LPSTR device, LPSTR output, LPSTR initData ) |
| { |
| DC * dc; |
| HANDLE handle; |
| |
| handle = GDI_AllocObject( sizeof(DC), DC_MAGIC ); |
| if (!handle) return 0; |
| dc = (DC *) GDI_HEAP_ADDR( handle ); |
| |
| #ifdef DEBUG_DC |
| printf( "CreateDC(%s %s %s): returning %d\n", driver, device, output, handle ); |
| #endif |
| |
| if (!displayDevCaps) |
| { |
| displayDevCaps = (DeviceCaps *) malloc( sizeof(DeviceCaps) ); |
| DC_FillDevCaps( displayDevCaps ); |
| } |
| |
| dc->saveLevel = 0; |
| memcpy( &dc->w, &DCVAL_defaultValues, sizeof(DCVAL_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.DCSizeX = displayDevCaps->horzRes; |
| dc->w.DCSizeY = displayDevCaps->vertRes; |
| |
| DC_InitDC( handle ); |
| |
| return handle; |
| } |
| |
| |
| /*********************************************************************** |
| * CreateIC (GDI.153) |
| */ |
| HDC CreateIC( LPSTR driver, LPSTR device, LPSTR output, LPSTR initData ) |
| { |
| /* Nothing special yet for ICs */ |
| return CreateDC( driver, device, output, initData ); |
| } |
| |
| |
| /*********************************************************************** |
| * CreateCompatibleDC (GDI.52) |
| */ |
| HDC CreateCompatibleDC( HDC hdc ) |
| { |
| DC * dc; |
| HANDLE handle; |
| |
| handle = GDI_AllocObject( sizeof(DC), DC_MAGIC ); |
| if (!handle) return 0; |
| dc = (DC *) GDI_HEAP_ADDR( handle ); |
| |
| #ifdef DEBUG_DC |
| printf( "CreateCompatibleDC(%d): returning %d\n", hdc, handle ); |
| #endif |
| |
| dc->saveLevel = 0; |
| memcpy( &dc->w, &DCVAL_defaultValues, sizeof(DCVAL_defaultValues) ); |
| memset( &dc->u.x, 0, sizeof(dc->u.x) ); |
| |
| dc->u.x.drawable = XCreatePixmap( display, rootWindow, 1, 1, 1 ); |
| 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.DCSizeX = 1; |
| dc->w.DCSizeY = 1; |
| |
| SelectObject( handle, BITMAP_hbitmapMemDC ); |
| DC_InitDC( handle ); |
| |
| return handle; |
| } |
| |
| |
| /*********************************************************************** |
| * DeleteDC (GDI.68) |
| */ |
| BOOL DeleteDC( HDC hdc ) |
| { |
| DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ); |
| if (!dc) return FALSE; |
| |
| #ifdef DEBUG_DC |
| printf( "DeleteDC: %d\n", hdc ); |
| #endif |
| |
| 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.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 ); |
| } |
| |
| |
| /*********************************************************************** |
| * 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; |
| |
| #ifdef DEBUG_DC |
| printf( "GetDeviceCaps(%d,%d): returning %d\n", |
| hdc, cap, *(WORD *)(((char *)dc->w.devCaps) + cap) ); |
| #endif |
| 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) return 0x80000000; |
| |
| 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) return 0x80000000; |
| |
| oldColor = dc->w.textColor; |
| dc->w.textColor = color; |
| dc->w.textPixel = COLOR_ToPhysical( dc, color ); |
| return oldColor; |
| } |
| |
| |
| /*********************************************************************** |
| * 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; |
| } |