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145 lines
4.7 KiB
C++
145 lines
4.7 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 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 Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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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 Foundation code.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2005
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Vladimir Vukicevic <vladimir@mozilla.com>
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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 MPL, 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 MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef GFX_PANGOFONTS_H
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#define GFX_PANGOFONTS_H
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#include "gfxTypes.h"
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#include "gfxFont.h"
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#include <pango/pango.h>
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#include <X11/Xft/Xft.h>
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class gfxPangoFont : public gfxFont {
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public:
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gfxPangoFont (const nsAString& aName,
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const gfxFontStyle *aFontStyle);
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virtual ~gfxPangoFont ();
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virtual const gfxFont::Metrics& GetMetrics();
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PangoFontDescription* GetPangoFontDescription() { RealizeFont(); return mPangoFontDesc; }
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PangoContext* GetPangoContext() { RealizeFont(); return mPangoCtx; }
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XftFont * GetXftFont () { RealizeXftFont (); return mXftFont; }
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protected:
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PangoFontDescription *mPangoFontDesc;
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PangoContext *mPangoCtx;
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XftFont * mXftFont;
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PRBool mHasMetrics;
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Metrics mMetrics;
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void RealizeFont(PRBool force = PR_FALSE);
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void RealizeXftFont(PRBool force = PR_FALSE);
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void GetSize(const char *aString, PRUint32 aLength, gfxSize& inkSize, gfxSize& logSize);
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};
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class THEBES_API gfxPangoFontGroup : public gfxFontGroup {
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public:
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gfxPangoFontGroup (const nsAString& families,
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const gfxFontStyle *aStyle);
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virtual ~gfxPangoFontGroup ();
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virtual gfxTextRun *MakeTextRun(const nsAString& aString);
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virtual gfxTextRun *MakeTextRun(const nsACString& aCString);
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gfxPangoFont *GetFontAt(PRInt32 i) {
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return NS_STATIC_CAST(gfxPangoFont*,
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NS_STATIC_CAST(gfxFont*, mFonts[i]));
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}
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protected:
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static PRBool FontCallback (const nsAString& fontName,
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const nsACString& genericName,
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void *closure);
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};
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class THEBES_API gfxXftTextRun : public gfxTextRun {
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public:
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gfxXftTextRun(const nsAString& aString, gfxPangoFontGroup *aFontGroup);
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gfxXftTextRun(const nsACString& aString, gfxPangoFontGroup *aFontGroup);
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~gfxXftTextRun();
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virtual void Draw(gfxContext *aContext, gfxPoint pt);
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virtual gfxFloat Measure(gfxContext *aContext);
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virtual void SetSpacing(const nsTArray<gfxFloat>& spacingArray);
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virtual const nsTArray<gfxFloat> *const GetSpacing() const;
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private:
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nsDependentSubstring mWString;
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nsDependentCSubstring mCString;
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PRBool mIsWide;
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gfxPangoFontGroup *mGroup;
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int mWidth, mHeight;
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nsTArray<gfxFloat> mSpacing;
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nsTArray<PRInt32> mUTF8Spacing;
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};
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class THEBES_API gfxPangoTextRun : public gfxTextRun {
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public:
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gfxPangoTextRun(const nsAString& aString, gfxPangoFontGroup *aFontGroup);
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~gfxPangoTextRun();
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virtual void Draw(gfxContext *aContext, gfxPoint pt);
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virtual gfxFloat Measure(gfxContext *aContext);
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virtual void SetSpacing(const nsTArray<gfxFloat>& spacingArray);
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virtual const nsTArray<gfxFloat> *const GetSpacing() const;
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private:
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nsString mString;
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gfxPangoFontGroup *mGroup;
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PangoLayout *mPangoLayout;
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int mWidth, mHeight;
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void EnsurePangoLayout(gfxContext *aContext = nsnull);
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nsTArray<gfxFloat> mSpacing;
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nsTArray<PRInt32> mUTF8Spacing;
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};
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#endif /* GFX_PANGOFONTS_H */
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