зеркало из https://github.com/mozilla/gecko-dev.git
149 строки
5.4 KiB
C
149 строки
5.4 KiB
C
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsFont_h___
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#define nsFont_h___
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#include "nscore.h"
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#include "nsComObsolete.h"
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#include "nsCoord.h"
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#include "nsString.h"
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// XXX we need a method to enumerate all of the possible fonts on the
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// system across family, weight, style, size, etc. But not here!
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// Enumerator callback function. Return PR_FALSE to stop
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typedef PRBool (*nsFontFamilyEnumFunc)(const nsString& aFamily, PRBool aGeneric, void *aData);
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// IDs for generic fonts
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// NOTE: 0, 1 are reserved for the special IDs of the default variable
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// and fixed fonts in the presentation context, see nsIPresContext.h
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const PRUint8 kGenericFont_NONE = 0x00;
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// Special
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const PRUint8 kGenericFont_moz_variable = 0x00; // for the default variable width font
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const PRUint8 kGenericFont_moz_fixed = 0x01; // our special "use the user's fixed font"
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// CSS
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const PRUint8 kGenericFont_serif = 0x02;
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const PRUint8 kGenericFont_sans_serif = 0x04;
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const PRUint8 kGenericFont_monospace = 0x08;
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const PRUint8 kGenericFont_cursive = 0x10;
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const PRUint8 kGenericFont_fantasy = 0x20;
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// Font structure.
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struct NS_GFX nsFont {
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// The family name of the font
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nsString name;
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// The style of font (normal, italic, oblique)
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PRUint8 style;
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// The variant of the font (normal, small-caps)
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PRUint8 variant : 7;
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// True if the character set quirks (for treatment of "Symbol",
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// "Wingdings", etc.) should be applied.
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PRPackedBool familyNameQuirks : 1;
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// The weight of the font (0-999)
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PRUint16 weight;
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// The decorations on the font (underline, overline,
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// line-through). The decorations can be binary or'd together.
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PRUint8 decorations;
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// The logical size of the font, in nscoord units
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nscoord size;
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// The aspect-value (ie., the ratio actualsize:actualxheight) that any
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// actual physical font created from this font structure must have when
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// rendering or measuring a string. A value of 0 means no adjustment
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// needs to be done.
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float sizeAdjust;
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// Initialize the font struct with an iso-latin1 name
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nsFont(const char* aName, PRUint8 aStyle, PRUint8 aVariant,
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PRUint16 aWeight, PRUint8 aDecoration, nscoord aSize,
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float aSizeAdjust=0.0f);
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// Initialize the font struct with a (potentially) unicode name
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nsFont(const nsString& aName, PRUint8 aStyle, PRUint8 aVariant,
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PRUint16 aWeight, PRUint8 aDecoration, nscoord aSize,
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float aSizeAdjust=0.0f);
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// Make a copy of the given font
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nsFont(const nsFont& aFont);
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nsFont();
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~nsFont();
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PRBool operator==(const nsFont& aOther) const {
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return Equals(aOther);
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}
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PRBool Equals(const nsFont& aOther) const ;
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nsFont& operator=(const nsFont& aOther);
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// Utility method to interpret name string
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// enumerates all families specified by this font only
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// returns PR_TRUE if completed, PR_FALSE if stopped
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// enclosing quotes will be removed, and whitespace compressed (as needed)
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PRBool EnumerateFamilies(nsFontFamilyEnumFunc aFunc, void* aData) const;
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void GetFirstFamily(nsString& aFamily) const;
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// Utility method to return the ID of a generic font
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static void GetGenericID(const nsString& aGeneric, PRUint8* aID);
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};
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#define NS_FONT_STYLE_NORMAL 0
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#define NS_FONT_STYLE_ITALIC 1
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#define NS_FONT_STYLE_OBLIQUE 2
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#define NS_FONT_VARIANT_NORMAL 0
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#define NS_FONT_VARIANT_SMALL_CAPS 1
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#define NS_FONT_DECORATION_NONE 0x0
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#define NS_FONT_DECORATION_UNDERLINE 0x1
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#define NS_FONT_DECORATION_OVERLINE 0x2
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#define NS_FONT_DECORATION_LINE_THROUGH 0x4
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#define NS_FONT_WEIGHT_NORMAL 400
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#define NS_FONT_WEIGHT_BOLD 700
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#endif /* nsFont_h___ */
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