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307 lines
8.1 KiB
C
307 lines
8.1 KiB
C
/*
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* GDI pen objects
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*
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* Copyright 1993 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "gdi_private.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(gdi);
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/* GDI logical pen object */
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typedef struct
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{
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GDIOBJHDR header;
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EXTLOGPEN logpen;
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} PENOBJ;
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static HGDIOBJ PEN_SelectObject( HGDIOBJ handle, HDC hdc );
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static INT PEN_GetObject( HGDIOBJ handle, INT count, LPVOID buffer );
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static BOOL PEN_DeleteObject( HGDIOBJ handle );
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static const struct gdi_obj_funcs pen_funcs =
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{
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PEN_SelectObject, /* pSelectObject */
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PEN_GetObject, /* pGetObjectA */
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PEN_GetObject, /* pGetObjectW */
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NULL, /* pUnrealizeObject */
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PEN_DeleteObject /* pDeleteObject */
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};
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/***********************************************************************
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* CreatePen (GDI32.@)
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*/
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HPEN WINAPI CreatePen( INT style, INT width, COLORREF color )
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{
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LOGPEN logpen;
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TRACE("%d %d %06x\n", style, width, color );
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logpen.lopnStyle = style;
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logpen.lopnWidth.x = width;
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logpen.lopnWidth.y = 0;
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logpen.lopnColor = color;
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return CreatePenIndirect( &logpen );
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}
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/***********************************************************************
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* CreatePenIndirect (GDI32.@)
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*/
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HPEN WINAPI CreatePenIndirect( const LOGPEN * pen )
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{
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PENOBJ * penPtr;
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HPEN hpen;
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if (pen->lopnStyle == PS_NULL)
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{
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hpen = GetStockObject(NULL_PEN);
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if (hpen) return hpen;
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}
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if (!(penPtr = HeapAlloc( GetProcessHeap(), 0, sizeof(*penPtr) ))) return 0;
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if (pen->lopnStyle == PS_USERSTYLE || pen->lopnStyle == PS_ALTERNATE)
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penPtr->logpen.elpPenStyle = PS_SOLID;
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else
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penPtr->logpen.elpPenStyle = pen->lopnStyle;
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if (pen->lopnStyle == PS_NULL)
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{
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penPtr->logpen.elpWidth = 1;
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penPtr->logpen.elpColor = RGB(0, 0, 0);
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}
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else
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{
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penPtr->logpen.elpWidth = abs(pen->lopnWidth.x);
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penPtr->logpen.elpColor = pen->lopnColor;
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}
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penPtr->logpen.elpBrushStyle = BS_SOLID;
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penPtr->logpen.elpHatch = 0;
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penPtr->logpen.elpNumEntries = 0;
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penPtr->logpen.elpStyleEntry[0] = 0;
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if (!(hpen = alloc_gdi_handle( &penPtr->header, OBJ_PEN, &pen_funcs )))
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HeapFree( GetProcessHeap(), 0, penPtr );
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return hpen;
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}
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/***********************************************************************
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* ExtCreatePen (GDI32.@)
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*/
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HPEN WINAPI ExtCreatePen( DWORD style, DWORD width,
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const LOGBRUSH * brush, DWORD style_count,
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const DWORD *style_bits )
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{
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PENOBJ * penPtr;
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HPEN hpen;
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if ((style & PS_STYLE_MASK) == PS_USERSTYLE)
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{
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if(((INT)style_count) <= 0)
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return 0;
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if ((style_count > 16) || !style_bits)
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{
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SetLastError(ERROR_INVALID_PARAMETER);
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return 0;
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}
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if ((style & PS_TYPE_MASK) == PS_GEOMETRIC)
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{
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UINT i;
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BOOL has_neg = FALSE, all_zero = TRUE;
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for(i = 0; (i < style_count) && !has_neg; i++)
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{
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has_neg = has_neg || (((INT)(style_bits[i])) < 0);
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all_zero = all_zero && (style_bits[i] == 0);
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}
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if(all_zero || has_neg)
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{
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SetLastError(ERROR_INVALID_PARAMETER);
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return 0;
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}
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}
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}
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else
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{
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if (style_count || style_bits)
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{
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SetLastError(ERROR_INVALID_PARAMETER);
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return 0;
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}
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}
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if ((style & PS_STYLE_MASK) == PS_NULL)
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return CreatePen( PS_NULL, 0, brush->lbColor );
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if ((style & PS_TYPE_MASK) == PS_GEOMETRIC)
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{
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/* PS_ALTERNATE is applicable only for cosmetic pens */
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if ((style & PS_STYLE_MASK) == PS_ALTERNATE)
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{
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SetLastError(ERROR_INVALID_PARAMETER);
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return 0;
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}
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if (brush->lbHatch && ((brush->lbStyle != BS_SOLID) && (brush->lbStyle != BS_HOLLOW)))
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{
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static int fixme_hatches_shown;
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if (!fixme_hatches_shown++) FIXME("Hatches not implemented\n");
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}
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}
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else
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{
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/* PS_INSIDEFRAME is applicable only for geometric pens */
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if ((style & PS_STYLE_MASK) == PS_INSIDEFRAME || width != 1)
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{
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SetLastError(ERROR_INVALID_PARAMETER);
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return 0;
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}
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}
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if (!(penPtr = HeapAlloc(GetProcessHeap(), 0, FIELD_OFFSET(PENOBJ,logpen.elpStyleEntry[style_count]))))
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return 0;
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penPtr->logpen.elpPenStyle = style;
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penPtr->logpen.elpWidth = abs(width);
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penPtr->logpen.elpBrushStyle = brush->lbStyle;
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penPtr->logpen.elpColor = brush->lbColor;
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penPtr->logpen.elpHatch = brush->lbHatch;
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penPtr->logpen.elpNumEntries = style_count;
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memcpy(penPtr->logpen.elpStyleEntry, style_bits, style_count * sizeof(DWORD));
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if (!(hpen = alloc_gdi_handle( &penPtr->header, OBJ_EXTPEN, &pen_funcs )))
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HeapFree( GetProcessHeap(), 0, penPtr );
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return hpen;
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}
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/***********************************************************************
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* PEN_SelectObject
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*/
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static HGDIOBJ PEN_SelectObject( HGDIOBJ handle, HDC hdc )
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{
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PHYSDEV physdev;
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HGDIOBJ ret = 0;
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DC *dc = get_dc_ptr( hdc );
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if (!dc)
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{
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SetLastError( ERROR_INVALID_HANDLE );
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return 0;
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}
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if (!GDI_inc_ref_count( handle ))
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{
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release_dc_ptr( dc );
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return 0;
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}
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physdev = GET_DC_PHYSDEV( dc, pSelectPen );
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if (!physdev->funcs->pSelectPen( physdev, handle ))
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{
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GDI_dec_ref_count( handle );
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}
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else
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{
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ret = dc->hPen;
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dc->hPen = handle;
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GDI_dec_ref_count( ret );
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}
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release_dc_ptr( dc );
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return ret;
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}
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/***********************************************************************
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* PEN_DeleteObject
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*/
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static BOOL PEN_DeleteObject( HGDIOBJ handle )
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{
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PENOBJ *pen = free_gdi_handle( handle );
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if (!pen) return FALSE;
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return HeapFree( GetProcessHeap(), 0, pen );
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}
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/***********************************************************************
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* PEN_GetObject
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*/
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static INT PEN_GetObject( HGDIOBJ handle, INT count, LPVOID buffer )
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{
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PENOBJ *pen = GDI_GetObjPtr( handle, 0 );
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INT ret = 0;
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if (!pen) return 0;
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switch (pen->header.type)
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{
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case OBJ_PEN:
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{
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LOGPEN *lp;
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if (!buffer) ret = sizeof(LOGPEN);
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else if (count < sizeof(LOGPEN)) ret = 0;
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else if ((pen->logpen.elpPenStyle & PS_STYLE_MASK) == PS_NULL && count == sizeof(EXTLOGPEN))
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{
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EXTLOGPEN *elp = buffer;
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*elp = pen->logpen;
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elp->elpWidth = 0;
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ret = sizeof(EXTLOGPEN);
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}
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else
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{
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lp = buffer;
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lp->lopnStyle = pen->logpen.elpPenStyle;
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lp->lopnColor = pen->logpen.elpColor;
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lp->lopnWidth.x = pen->logpen.elpWidth;
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lp->lopnWidth.y = 0;
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ret = sizeof(LOGPEN);
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}
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break;
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}
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case OBJ_EXTPEN:
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ret = sizeof(EXTLOGPEN) + pen->logpen.elpNumEntries * sizeof(DWORD) - sizeof(pen->logpen.elpStyleEntry);
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if (buffer)
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{
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if (count < ret) ret = 0;
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else memcpy(buffer, &pen->logpen, ret);
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}
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break;
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}
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GDI_ReleaseObj( handle );
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return ret;
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}
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