532 lines
16 KiB
C
532 lines
16 KiB
C
/*
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* GDI Device Context functions
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*
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* Copyright 1993 Alexandre Julliard
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*/
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static char Copyright[] = "Copyright Alexandre Julliard, 1993";
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#include <stdlib.h>
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#include <string.h>
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#include "gdi.h"
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#include "bitmap.h"
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#include "metafile.h"
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static DeviceCaps * displayDevCaps = NULL;
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extern const WIN_DC_INFO DCVAL_defaultValues;
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extern void CLIPPING_SetDeviceClipping( DC * dc ); /* objects/clipping.c */
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extern WORD COLOR_ToPhysical( DC *dc, COLORREF color );/* objects/color.c */
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extern void COLOR_SetMapping( DC *dc, HANDLE, WORD ); /* objects/color.c */
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/* ROP code to GC function conversion */
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const int DC_XROPfunction[16] =
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{
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GXclear, /* R2_BLACK */
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GXnor, /* R2_NOTMERGEPEN */
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GXandInverted, /* R2_MASKNOTPEN */
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GXcopyInverted, /* R2_NOTCOPYPEN */
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GXandReverse, /* R2_MASKPENNOT */
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GXinvert, /* R2_NOT */
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GXxor, /* R2_XORPEN */
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GXnand, /* R2_NOTMASKPEN */
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GXand, /* R2_MASKPEN */
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GXequiv, /* R2_NOTXORPEN */
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GXnoop, /* R2_NOP */
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GXorInverted, /* R2_MERGENOTPEN */
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GXcopy, /* R2_COPYPEN */
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GXorReverse, /* R2_MERGEPENNOT */
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GXor, /* R2_MERGEPEN */
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GXset /* R2_WHITE */
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};
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/***********************************************************************
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* DC_FillDevCaps
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*
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* Fill the device caps structure.
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*/
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void DC_FillDevCaps( DeviceCaps * caps )
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{
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caps->version = 0x300;
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caps->technology = DT_RASDISPLAY;
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caps->horzSize = WidthMMOfScreen(screen) * screenWidth / WidthOfScreen(screen);
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caps->vertSize = HeightMMOfScreen(screen) * screenHeight / HeightOfScreen(screen);
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caps->horzRes = screenWidth;
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caps->vertRes = screenHeight;
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caps->bitsPixel = screenDepth;
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caps->planes = 1;
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caps->numBrushes = 0;
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caps->numPens = 0;
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caps->numMarkers = 0;
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caps->numFonts = 0;
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caps->numColors = 1 << caps->bitsPixel;
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caps->pdeviceSize = 0;
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caps->curveCaps = CC_CIRCLES | CC_PIE | CC_CHORD | CC_ELLIPSES |
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CC_WIDE | CC_STYLED | CC_WIDESTYLED |
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CC_INTERIORS | CC_ROUNDRECT;
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caps->lineCaps = LC_POLYLINE | LC_MARKER | LC_POLYMARKER | LC_WIDE |
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LC_STYLED | LC_WIDESTYLED | LC_INTERIORS;
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caps->polygonalCaps = PC_POLYGON | PC_RECTANGLE | PC_WINDPOLYGON |
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PC_SCANLINE | PC_WIDE | PC_STYLED |
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PC_WIDESTYLED | PC_INTERIORS;
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caps->textCaps = TC_OP_CHARACTER | TC_OP_STROKE | TC_CP_STROKE |
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TC_IA_ABLE | TC_UA_ABLE | TC_SO_ABLE | TC_RA_ABLE;
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caps->clipCaps = CP_REGION;
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caps->rasterCaps = RC_BITBLT | RC_BANDING | RC_SCALING | RC_BITMAP64 |
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RC_DI_BITMAP | RC_PALETTE | RC_DIBTODEV | RC_BIGFONT|
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RC_STRETCHBLT | RC_STRETCHDIB | RC_DEVBITS;
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caps->aspectX = 36; /* ?? */
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caps->aspectY = 36; /* ?? */
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caps->aspectXY = 51;
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caps->logPixelsX = (int)(caps->horzRes * 25.4 / caps->horzSize);
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caps->logPixelsY = (int)(caps->vertRes * 25.4 / caps->vertSize);
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caps->sizePalette = DefaultVisual(display,DefaultScreen(display))->map_entries;
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caps->numReserved = 0;
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caps->colorRes = 0;
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}
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/***********************************************************************
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* DC_InitDC
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*
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* Setup device-specific DC values for a newly created DC.
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*/
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static void DC_InitDC( HDC hdc )
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{
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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RealizeDefaultPalette( hdc );
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SetTextColor( hdc, dc->w.textColor );
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SetBkColor( hdc, dc->w.backgroundColor );
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SelectObject( hdc, dc->w.hPen );
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SelectObject( hdc, dc->w.hBrush );
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SelectObject( hdc, dc->w.hFont );
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XSetGraphicsExposures( XT_display, dc->u.x.gc, False );
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CLIPPING_SetDeviceClipping( dc );
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FONT_SelectObject(dc, STOCK_SYSTEM_FIXED_FONT, NULL);
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}
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/***********************************************************************
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* DC_SetupDCForBrush
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*
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* Setup dc->u.x.gc for drawing operations using current brush.
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* Return 0 if brush is BS_NULL, 1 otherwise.
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*/
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int DC_SetupGCForBrush( DC * dc )
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{
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XGCValues val;
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unsigned long mask = 0;
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if (dc->u.x.brush.style == BS_NULL) return 0;
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if (dc->u.x.brush.pixel == -1)
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{
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/* Special case used for monochrome pattern brushes.
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* We need to swap foreground and background because
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* Windows does it the wrong way...
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*/
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val.foreground = dc->w.backgroundPixel;
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val.background = dc->w.textPixel;
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}
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else
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{
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val.foreground = dc->u.x.brush.pixel;
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val.background = dc->w.backgroundPixel;
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}
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val.function = DC_XROPfunction[dc->w.ROPmode-1];
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val.fill_style = dc->u.x.brush.fillStyle;
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if (val.fill_style == FillStippled)
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{
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if (dc->w.backgroundMode==OPAQUE) val.fill_style = FillOpaqueStippled;
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val.stipple = dc->u.x.brush.pixmap;
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mask = GCStipple;
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}
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else if (val.fill_style == FillTiled)
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{
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val.tile = dc->u.x.brush.pixmap;
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mask = GCTile;
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}
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val.ts_x_origin = dc->w.DCOrgX + dc->w.brushOrgX;
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val.ts_y_origin = dc->w.DCOrgY + dc->w.brushOrgY;
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val.fill_rule = (dc->w.polyFillMode==WINDING) ? WindingRule : EvenOddRule;
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XChangeGC( display, dc->u.x.gc,
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GCFunction | GCForeground | GCBackground | GCFillStyle |
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GCFillRule | GCTileStipXOrigin | GCTileStipYOrigin | mask,
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&val );
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return 1;
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}
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/***********************************************************************
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* DC_SetupDCForPen
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*
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* Setup dc->u.x.gc for drawing operations using current pen.
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* Return 0 if pen is PS_NULL, 1 otherwise.
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*/
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int DC_SetupGCForPen( DC * dc )
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{
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XGCValues val;
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if (dc->u.x.pen.style == PS_NULL) return 0;
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val.function = DC_XROPfunction[dc->w.ROPmode-1];
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val.foreground = dc->u.x.pen.pixel;
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val.background = dc->w.backgroundPixel;
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val.fill_style = FillSolid;
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if ((dc->u.x.pen.style!=PS_SOLID) && (dc->u.x.pen.style!=PS_INSIDEFRAME))
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{
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XSetDashes( display, dc->u.x.gc, 0,
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dc->u.x.pen.dashes, dc->u.x.pen.dash_len );
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val.line_style = (dc->w.backgroundMode == OPAQUE) ?
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LineDoubleDash : LineOnOffDash;
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}
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else val.line_style = LineSolid;
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val.line_width = dc->u.x.pen.width;
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val.cap_style = CapRound;
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val.join_style = JoinBevel;
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XChangeGC( display, dc->u.x.gc,
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GCFunction | GCForeground | GCBackground | GCLineWidth |
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GCLineStyle | GCCapStyle | GCJoinStyle | GCFillStyle, &val );
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return 1;
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}
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/***********************************************************************
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* DC_SetupDCForText
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*
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* Setup dc->u.x.gc for text drawing operations.
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* Return 0 if the font is null, 1 otherwise.
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*/
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int DC_SetupGCForText( DC * dc )
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{
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XGCValues val;
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if (!dc->u.x.font.fstruct)
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{
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FONT_SelectObject(dc, STOCK_SYSTEM_FIXED_FONT, NULL);
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}
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val.function = DC_XROPfunction[dc->w.ROPmode-1];
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val.foreground = dc->w.textPixel;
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val.background = dc->w.backgroundPixel;
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val.fill_style = FillSolid;
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val.font = dc->u.x.font.fstruct->fid;
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XChangeGC( display, dc->u.x.gc,
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GCFunction | GCForeground | GCBackground | GCFillStyle |
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GCFont, &val );
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return 1;
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}
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/***********************************************************************
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* GetDCState (GDI.179)
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*/
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HDC GetDCState( HDC hdc )
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{
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DC * newdc, * dc;
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HANDLE handle;
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if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
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if (!(handle = GDI_AllocObject( sizeof(DC), DC_MAGIC ))) return 0;
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newdc = (DC *) GDI_HEAP_ADDR( handle );
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#ifdef DEBUG_DC
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printf( "GetDCState(%d): returning %d\n", hdc, handle );
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#endif
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memcpy( &newdc->w, &dc->w, sizeof(dc->w) );
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newdc->saveLevel = 0;
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newdc->w.flags |= DC_SAVED;
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if (dc->w.hClipRgn)
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{
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newdc->w.hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
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CombineRgn( newdc->w.hClipRgn, dc->w.hClipRgn, 0, RGN_COPY );
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}
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if (dc->w.hVisRgn)
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{
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newdc->w.hVisRgn = CreateRectRgn( 0, 0, 0, 0 );
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CombineRgn( newdc->w.hVisRgn, dc->w.hVisRgn, 0, RGN_COPY );
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}
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newdc->w.hGCClipRgn = 0;
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COLOR_SetMapping( newdc, dc->u.x.pal.hMapping, dc->u.x.pal.mappingSize );
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return handle;
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}
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/***********************************************************************
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* SetDCState (GDI.180)
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*/
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void SetDCState( HDC hdc, HDC hdcs )
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{
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DC * dc, * dcs;
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if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return;
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if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) return;
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if (!dcs->w.flags & DC_SAVED) return;
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#ifdef DEBUG_DC
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printf( "SetDCState: %d %d\n", hdc, hdcs );
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#endif
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if (dc->w.hClipRgn) DeleteObject( dc->w.hClipRgn );
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if (dc->w.hVisRgn) DeleteObject( dc->w.hVisRgn );
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if (dc->w.hGCClipRgn) DeleteObject( dc->w.hGCClipRgn );
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memcpy( &dc->w, &dcs->w, sizeof(dc->w) );
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memcpy( &dc->u.x.pen, &dcs->u.x.pen, sizeof(dc->u.x.pen) );
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dc->w.hClipRgn = dc->w.hVisRgn = dc->w.hGCClipRgn = 0;
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dc->w.flags &= ~DC_SAVED;
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SelectObject( hdc, dcs->w.hBrush );
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SelectObject( hdc, dcs->w.hFont );
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COLOR_SetMapping( dc, dcs->u.x.pal.hMapping, dcs->u.x.pal.mappingSize );
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SelectClipRgn( hdc, dcs->w.hClipRgn );
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SelectVisRgn( hdc, dcs->w.hVisRgn );
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}
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/***********************************************************************
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* SaveDC (GDI.30)
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*/
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int SaveDC( HDC hdc )
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{
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HDC hdcs;
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DC * dc, * dcs;
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if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
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if (!(hdcs = GetDCState( hdc ))) return 0;
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dcs = (DC *) GDI_HEAP_ADDR( hdcs );
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dcs->header.hNext = dc->header.hNext;
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dc->header.hNext = hdcs;
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#ifdef DEBUG_DC
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printf( "SaveDC(%d): returning %d\n", hdc, dc->saveLevel+1 );
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#endif
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return ++dc->saveLevel;
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}
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/***********************************************************************
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* RestoreDC (GDI.39)
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*/
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BOOL RestoreDC( HDC hdc, short level )
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{
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DC * dc, * dcs;
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#ifdef DEBUG_DC
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printf( "RestoreDC: %d %d\n", hdc, level );
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#endif
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if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return FALSE;
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if (level == -1) level = dc->saveLevel;
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if ((level < 1) || (level > (short)dc->saveLevel)) return FALSE;
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while ((short)dc->saveLevel >= level)
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{
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HDC hdcs = dc->header.hNext;
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if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) return FALSE;
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dc->header.hNext = dcs->header.hNext;
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if ((short)--dc->saveLevel < level) SetDCState( hdc, hdcs );
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DeleteDC( hdcs );
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}
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return TRUE;
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}
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/***********************************************************************
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* CreateDC (GDI.53)
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*/
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HDC CreateDC( LPSTR driver, LPSTR device, LPSTR output, LPSTR initData )
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{
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DC * dc;
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HANDLE handle;
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handle = GDI_AllocObject( sizeof(DC), DC_MAGIC );
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if (!handle) return 0;
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dc = (DC *) GDI_HEAP_ADDR( handle );
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#ifdef DEBUG_DC
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printf( "CreateDC(%s %s %s): returning %d\n", driver, device, output, handle );
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#endif
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if (!displayDevCaps)
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{
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displayDevCaps = (DeviceCaps *) malloc( sizeof(DeviceCaps) );
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DC_FillDevCaps( displayDevCaps );
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}
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dc->saveLevel = 0;
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memcpy( &dc->w, &DCVAL_defaultValues, sizeof(DCVAL_defaultValues) );
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memset( &dc->u.x, 0, sizeof(dc->u.x) );
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dc->u.x.drawable = rootWindow;
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dc->u.x.gc = XCreateGC( display, dc->u.x.drawable, 0, NULL );
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dc->w.flags = 0;
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dc->w.devCaps = displayDevCaps;
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dc->w.bitsPerPixel = displayDevCaps->bitsPixel;
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dc->w.DCSizeX = displayDevCaps->horzRes;
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dc->w.DCSizeY = displayDevCaps->vertRes;
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DC_InitDC( handle );
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return handle;
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}
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/***********************************************************************
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* CreateIC (GDI.153)
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*/
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HDC CreateIC( LPSTR driver, LPSTR device, LPSTR output, LPSTR initData )
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{
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/* Nothing special yet for ICs */
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return CreateDC( driver, device, output, initData );
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}
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/***********************************************************************
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* CreateCompatibleDC (GDI.52)
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*/
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HDC CreateCompatibleDC( HDC hdc )
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{
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DC * dc;
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HANDLE handle;
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handle = GDI_AllocObject( sizeof(DC), DC_MAGIC );
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if (!handle) return 0;
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dc = (DC *) GDI_HEAP_ADDR( handle );
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#ifdef DEBUG_DC
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printf( "CreateCompatibleDC(%d): returning %d\n", hdc, handle );
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#endif
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dc->saveLevel = 0;
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memcpy( &dc->w, &DCVAL_defaultValues, sizeof(DCVAL_defaultValues) );
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memset( &dc->u.x, 0, sizeof(dc->u.x) );
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dc->u.x.drawable = XCreatePixmap( display, rootWindow, 1, 1, 1 );
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dc->u.x.gc = XCreateGC( display, dc->u.x.drawable, 0, NULL );
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dc->w.flags = DC_MEMORY;
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dc->w.bitsPerPixel = 1;
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dc->w.devCaps = displayDevCaps;
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dc->w.DCSizeX = 1;
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dc->w.DCSizeY = 1;
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SelectObject( handle, BITMAP_hbitmapMemDC );
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DC_InitDC( handle );
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return handle;
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}
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/***********************************************************************
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* DeleteDC (GDI.68)
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*/
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BOOL DeleteDC( HDC hdc )
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{
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc) return FALSE;
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#ifdef DEBUG_DC
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printf( "DeleteDC: %d\n", hdc );
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#endif
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while (dc->saveLevel)
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{
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DC * dcs;
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HDC hdcs = dc->header.hNext;
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if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) break;
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dc->header.hNext = dcs->header.hNext;
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dc->saveLevel--;
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DeleteDC( hdcs );
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}
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if (!(dc->w.flags & DC_SAVED))
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{
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SelectObject( hdc, STOCK_BLACK_PEN );
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SelectObject( hdc, STOCK_WHITE_BRUSH );
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SelectObject( hdc, STOCK_SYSTEM_FONT );
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XFreeGC( display, dc->u.x.gc );
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}
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if (dc->w.hClipRgn) DeleteObject( dc->w.hClipRgn );
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if (dc->w.hVisRgn) DeleteObject( dc->w.hVisRgn );
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if (dc->w.hGCClipRgn) DeleteObject( dc->w.hGCClipRgn );
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return GDI_FreeObject( hdc );
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}
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/***********************************************************************
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* GetDeviceCaps (GDI.80)
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*/
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int GetDeviceCaps( HDC hdc, WORD cap )
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{
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc) return 0;
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if (cap > sizeof(DeviceCaps)-sizeof(WORD)) return 0;
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#ifdef DEBUG_DC
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printf( "GetDeviceCaps(%d,%d): returning %d\n",
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hdc, cap, *(WORD *)(((char *)dc->w.devCaps) + cap) );
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#endif
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return *(WORD *)(((char *)dc->w.devCaps) + cap);
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}
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/***********************************************************************
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* SetBkColor (GDI.1)
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*/
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|
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;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* 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;
|
|
}
|