vcl/inc/textrender.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include <sal/config.h>
  23
  24 #include "salgdi.hxx"
  25
  26 class FontMetricData;
  27 class PhysicalFontCollection;
  28 namespace vcl::font { class PhysicalFontFace; }
  29
  30 class TextRenderImpl
  31 {
  32 public:
  33     // can't call ReleaseFonts here, as the destructor just calls this classes SetFont (pure virtual)!
  34     virtual ~TextRenderImpl() {}
  35
  36     virtual void                    SetTextColor( Color nColor ) = 0;
  37     virtual void                    SetFont(LogicalFontInstance*, int nFallbackLevel) = 0;
  38     void ReleaseFonts() { SetFont(nullptr, 0); }
  39     virtual void                    GetFontMetric( FontMetricDataRef&, int nFallbackLevel ) = 0;
  40     virtual FontCharMapRef          GetFontCharMap() const = 0;
  41     virtual bool                    GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const = 0;
  42     virtual void                    GetDevFontList( vcl::font::PhysicalFontCollection* ) = 0;
  43     virtual void                    ClearDevFontCache() = 0;
  44     virtual bool                    AddTempDevFont( vcl::font::PhysicalFontCollection*, const OUString& rFileURL, const OUString& rFontName ) = 0;
  45
  46     virtual std::unique_ptr<GenericSalLayout>
  47                                     GetTextLayout(int nFallbackLevel) = 0;
  48     virtual void                    DrawTextLayout(const GenericSalLayout&, const SalGraphics&) = 0;
  49 };
  50
  51 /* vim:set tabstop=4 shiftwidth=4 softtabstop=4 expandtab: */