Sweden-Number/dlls/gdiplus/font.c

518 lines
14 KiB
C

/*
* Copyright (C) 2007 Google (Evan Stade)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winnls.h"
#include "winreg.h"
#include "wine/debug.h"
#include "wine/unicode.h"
WINE_DEFAULT_DEBUG_CHANNEL (gdiplus);
#include "objbase.h"
#include "gdiplus.h"
#include "gdiplus_private.h"
static const REAL mm_per_inch = 25.4;
static const REAL inch_per_point = 1.0/72.0;
static inline REAL get_dpi (void)
{
REAL dpi;
GpGraphics *graphics;
HDC hdc = GetDC(0);
GdipCreateFromHDC (hdc, &graphics);
GdipGetDpiX(graphics, &dpi);
GdipDeleteGraphics(graphics);
ReleaseDC (0, hdc);
return dpi;
}
static inline REAL point_to_pixel (REAL point)
{
return point * get_dpi() * inch_per_point;
}
static inline REAL inch_to_pixel (REAL inch)
{
return inch * get_dpi();
}
static inline REAL document_to_pixel (REAL doc)
{
return doc * (get_dpi() / 300.0); /* Per MSDN */
}
static inline REAL mm_to_pixel (REAL mm)
{
return mm * (get_dpi() / mm_per_inch);
}
/*******************************************************************************
* GdipCreateFont [GDIPLUS.@]
*
* Create a new font based off of a FontFamily
*
* PARAMS
* *fontFamily [I] Family to base the font off of
* emSize [I] Size of the font
* style [I] Bitwise OR of FontStyle enumeration
* unit [I] Unit emSize is measured in
* **font [I] the resulting Font object
*
* RETURNS
* SUCCESS: Ok
* FAILURE: InvalidParameter if fontfamily or font is NULL.
* FAILURE: FontFamilyNotFound if an invalid FontFamily is given
*
* NOTES
* UnitDisplay is unsupported.
* emSize is stored separately from lfHeight, to hold the fraction.
*/
GpStatus WINGDIPAPI GdipCreateFont(GDIPCONST GpFontFamily *fontFamily,
REAL emSize, INT style, Unit unit, GpFont **font)
{
WCHAR facename[LF_FACESIZE];
LOGFONTW* lfw;
const TEXTMETRICW* tmw;
GpStatus stat;
if (!fontFamily || !fontFamily->FamilyName || !font)
return InvalidParameter;
TRACE("%p (%s), %f, %d, %d, %p\n", fontFamily,
debugstr_w(fontFamily->FamilyName), emSize, style, unit, font);
stat = GdipGetFamilyName (fontFamily, facename, 0);
if (stat != Ok) return stat;
*font = GdipAlloc(sizeof(GpFont));
tmw = &fontFamily->tmw;
lfw = &((*font)->lfw);
ZeroMemory(&(*lfw), sizeof(*lfw));
lfw->lfWeight = tmw->tmWeight;
lfw->lfItalic = tmw->tmItalic;
lfw->lfUnderline = tmw->tmUnderlined;
lfw->lfStrikeOut = tmw->tmStruckOut;
lfw->lfCharSet = tmw->tmCharSet;
lfw->lfPitchAndFamily = tmw->tmPitchAndFamily;
lstrcpynW((lfw->lfFaceName), facename, sizeof(WCHAR) * LF_FACESIZE);
switch (unit)
{
case UnitWorld:
/* FIXME: Figure out when World != Pixel */
lfw->lfHeight = emSize; break;
case UnitDisplay:
FIXME("Unknown behavior for UnitDisplay! Please report!\n");
/* FIXME: Figure out how this works...
* MSDN says that if "DISPLAY" is a monitor, then pixel should be
* used. That's not what I got. Tests on Windows revealed no output,
* and the tests in tests/font crash windows */
lfw->lfHeight = 0; break;
case UnitPixel:
lfw->lfHeight = emSize; break;
case UnitPoint:
lfw->lfHeight = point_to_pixel(emSize); break;
case UnitInch:
lfw->lfHeight = inch_to_pixel(emSize); break;
case UnitDocument:
lfw->lfHeight = document_to_pixel(emSize); break;
case UnitMillimeter:
lfw->lfHeight = mm_to_pixel(emSize); break;
}
lfw->lfHeight *= -1;
lfw->lfWeight = style & FontStyleBold ? 700 : 400;
lfw->lfItalic = style & FontStyleItalic;
lfw->lfUnderline = style & FontStyleUnderline;
lfw->lfStrikeOut = style & FontStyleStrikeout;
(*font)->unit = unit;
(*font)->emSize = emSize;
return Ok;
}
GpStatus WINGDIPAPI GdipCreateFontFromLogfontW(HDC hdc,
GDIPCONST LOGFONTW *logfont, GpFont **font)
{
HFONT hfont, oldfont;
TEXTMETRICW textmet;
if(!logfont || !font)
return InvalidParameter;
*font = GdipAlloc(sizeof(GpFont));
if(!*font) return OutOfMemory;
memcpy(&(*font)->lfw.lfFaceName, logfont->lfFaceName, LF_FACESIZE *
sizeof(WCHAR));
(*font)->lfw.lfHeight = logfont->lfHeight;
(*font)->lfw.lfItalic = logfont->lfItalic;
(*font)->lfw.lfUnderline = logfont->lfUnderline;
(*font)->lfw.lfStrikeOut = logfont->lfStrikeOut;
(*font)->emSize = logfont->lfHeight;
(*font)->unit = UnitPixel;
hfont = CreateFontIndirectW(&(*font)->lfw);
oldfont = SelectObject(hdc, hfont);
GetTextMetricsW(hdc, &textmet);
(*font)->lfw.lfHeight = -textmet.tmHeight;
(*font)->lfw.lfWeight = textmet.tmWeight;
SelectObject(hdc, oldfont);
DeleteObject(hfont);
return Ok;
}
GpStatus WINGDIPAPI GdipCreateFontFromLogfontA(HDC hdc,
GDIPCONST LOGFONTA *lfa, GpFont **font)
{
LOGFONTW lfw;
if(!lfa || !font)
return InvalidParameter;
memcpy(&lfw, lfa, FIELD_OFFSET(LOGFONTA,lfFaceName) );
if(!MultiByteToWideChar(CP_ACP, 0, lfa->lfFaceName, -1, lfw.lfFaceName, LF_FACESIZE))
return GenericError;
GdipCreateFontFromLogfontW(hdc, &lfw, font);
return Ok;
}
GpStatus WINGDIPAPI GdipDeleteFont(GpFont* font)
{
if(!font)
return InvalidParameter;
GdipFree(font);
return Ok;
}
GpStatus WINGDIPAPI GdipCreateFontFromDC(HDC hdc, GpFont **font)
{
HFONT hfont;
LOGFONTW lfw;
if(!font)
return InvalidParameter;
hfont = (HFONT)GetCurrentObject(hdc, OBJ_FONT);
if(!hfont)
return GenericError;
if(!GetObjectW(hfont, sizeof(LOGFONTW), &lfw))
return GenericError;
return GdipCreateFontFromLogfontW(hdc, &lfw, font);
}
/******************************************************************************
* GdipGetFontSize [GDIPLUS.@]
*
* Returns the size of the font in Units
*
* PARAMS
* *font [I] The font to retrieve size from
* *size [O] Pointer to hold retrieved value
*
* RETURNS
* SUCCESS: Ok
* FAILURE: InvalidParamter (font or size was NULL)
*
* NOTES
* Size returned is actually emSize -- not internal size used for drawing.
*/
GpStatus WINGDIPAPI GdipGetFontSize(GpFont *font, REAL *size)
{
if (!(font && size)) return InvalidParameter;
*size = font->emSize;
return Ok;
}
/*******************************************************************************
* GdipGetFontUnit [GDIPLUS.@]
*
* PARAMS
* font [I] Font to retrieve from
* unit [O] Return value
*
* RETURNS
* FAILURE: font or unit was NULL
* OK: otherwise
*/
GpStatus WINGDIPAPI GdipGetFontUnit(GpFont *font, Unit *unit)
{
if (!(font && unit)) return InvalidParameter;
*unit = font->unit;
return Ok;
}
/* FIXME: use graphics */
GpStatus WINGDIPAPI GdipGetLogFontW(GpFont *font, GpGraphics *graphics,
LOGFONTW *lfw)
{
if(!font || !graphics || !lfw)
return InvalidParameter;
*lfw = font->lfw;
return Ok;
}
GpStatus WINGDIPAPI GdipCloneFont(GpFont *font, GpFont **cloneFont)
{
if(!font || !cloneFont)
return InvalidParameter;
*cloneFont = GdipAlloc(sizeof(GpFont));
if(!*cloneFont) return OutOfMemory;
**cloneFont = *font;
return Ok;
}
/* Borrowed from GDI32 */
static INT CALLBACK is_font_installed_proc(const LOGFONTW *elf,
const TEXTMETRICW *ntm, DWORD type, LPARAM lParam)
{
return 0;
}
static BOOL is_font_installed(const WCHAR *name)
{
HDC hdc = GetDC(0);
BOOL ret = FALSE;
if(!EnumFontFamiliesW(hdc, name, is_font_installed_proc, 0))
ret = TRUE;
ReleaseDC(0, hdc);
return ret;
}
/*******************************************************************************
* GdipCreateFontFamilyFromName [GDIPLUS.@]
*
* Creates a font family object based on a supplied name
*
* PARAMS
* name [I] Name of the font
* fontCollection [I] What font collection (if any) the font belongs to (may be NULL)
* FontFamily [O] Pointer to the resulting FontFamily object
*
* RETURNS
* SUCCESS: Ok
* FAILURE: FamilyNotFound if the requested FontFamily does not exist on the system
* FAILURE: Invalid parameter if FontFamily or name is NULL
*
* NOTES
* If fontCollection is NULL then the object is not part of any collection
*
*/
GpStatus WINGDIPAPI GdipCreateFontFamilyFromName(GDIPCONST WCHAR *name,
GpFontCollection *fontCollection,
GpFontFamily **FontFamily)
{
GpFontFamily* ffamily;
HDC hdc;
HFONT hFont, hfont_old;
LOGFONTW lfw;
TRACE("%s, %p %p\n", debugstr_w(name), fontCollection, FontFamily);
if (!(name && FontFamily))
return InvalidParameter;
if (fontCollection)
FIXME("No support for FontCollections yet!\n");
if (!is_font_installed(name))
return FontFamilyNotFound;
ffamily = GdipAlloc(sizeof (GpFontFamily));
if (!ffamily) return OutOfMemory;
hdc = GetDC(0);
lstrcpynW(lfw.lfFaceName, name, sizeof(WCHAR) * LF_FACESIZE);
hFont = CreateFontIndirectW (&lfw);
hfont_old = SelectObject(hdc, hFont);
GetTextMetricsW(hdc, &ffamily->tmw);
DeleteObject(SelectObject(hdc, hfont_old));
ffamily->FamilyName = GdipAlloc(LF_FACESIZE * sizeof (WCHAR));
if (!ffamily->FamilyName)
{
GdipFree(ffamily);
ReleaseDC(0, hdc);
return OutOfMemory;
}
lstrcpynW(ffamily->FamilyName, name, sizeof(WCHAR) * LF_FACESIZE);
*FontFamily = ffamily;
ReleaseDC(0, hdc);
return Ok;
}
/*******************************************************************************
* GdipGetFamilyName [GDIPLUS.@]
*
* Returns the family name into name
*
* PARAMS
* *family [I] Family to retrieve from
* *name [O] WCHARS of the family name
* LANGID [I] charset
*
* RETURNS
* SUCCESS: Ok
* FAILURE: InvalidParameter if family is NULL
*
* NOTES
* If name is a NULL ptr, then both XP and Vista will crash (so we do as well)
*/
GpStatus WINGDIPAPI GdipGetFamilyName (GDIPCONST GpFontFamily *family,
WCHAR *name, LANGID language)
{
if (family == NULL)
return InvalidParameter;
TRACE("%p, %p, %d\n", family, name, language);
if (language != LANG_NEUTRAL)
FIXME("No support for handling of multiple languages!\n");
lstrcpynW (name, family->FamilyName, LF_FACESIZE);
return Ok;
}
/*****************************************************************************
* GdipDeleteFontFamily [GDIPLUS.@]
*
* Removes the specified FontFamily
*
* PARAMS
* *FontFamily [I] The family to delete
*
* RETURNS
* SUCCESS: Ok
* FAILURE: InvalidParameter if FontFamily is NULL.
*
*/
GpStatus WINGDIPAPI GdipDeleteFontFamily(GpFontFamily *FontFamily)
{
if (!FontFamily)
return InvalidParameter;
TRACE("Deleting %p (%s)\n", FontFamily, debugstr_w(FontFamily->FamilyName));
GdipFree (FontFamily->FamilyName);
GdipFree (FontFamily);
return Ok;
}
/*****************************************************************************
* GdipGetGenericFontFamilyMonospace [GDIPLUS.@]
*
* Obtains a serif family (Courier New on Windows)
*
* PARAMS
* **nativeFamily [I] Where the font will be stored
*
* RETURNS
* InvalidParameter if nativeFamily is NULL.
* Ok otherwise.
*/
GpStatus WINGDIPAPI GdipGetGenericFontFamilyMonospace(GpFontFamily **nativeFamily)
{
static const WCHAR CourierNew[] = {'C','o','u','r','i','e','r',' ','N','e','w','\0'};
if (nativeFamily == NULL) return InvalidParameter;
return GdipCreateFontFamilyFromName(CourierNew, NULL, nativeFamily);
}
/*****************************************************************************
* GdipGetGenericFontFamilySerif [GDIPLUS.@]
*
* Obtains a serif family (Times New Roman on Windows)
*
* PARAMS
* **nativeFamily [I] Where the font will be stored
*
* RETURNS
* InvalidParameter if nativeFamily is NULL.
* Ok otherwise.
*/
GpStatus WINGDIPAPI GdipGetGenericFontFamilySerif(GpFontFamily **nativeFamily)
{
static const WCHAR TimesNewRoman[] = {'T','i','m','e','s',' ','N','e','w',' ','R','o','m','a','n','\0'};
if (nativeFamily == NULL) return InvalidParameter;
return GdipCreateFontFamilyFromName(TimesNewRoman, NULL, nativeFamily);
}
/*****************************************************************************
* GdipGetGenericFontFamilySansSerif [GDIPLUS.@]
*
* Obtains a serif family (Microsoft Sans Serif on Windows)
*
* PARAMS
* **nativeFamily [I] Where the font will be stored
*
* RETURNS
* InvalidParameter if nativeFamily is NULL.
* Ok otherwise.
*/
GpStatus WINGDIPAPI GdipGetGenericFontFamilySansSerif(GpFontFamily **nativeFamily)
{
/* FIXME: On Windows this is called Microsoft Sans Serif, this shouldn't
* affect anything */
static const WCHAR MSSansSerif[] = {'M','S',' ','S','a','n','s',' ','S','e','r','i','f','\0'};
if (nativeFamily == NULL) return InvalidParameter;
return GdipCreateFontFamilyFromName(MSSansSerif, NULL, nativeFamily);
}