summaryrefslogtreecommitdiff
path: root/vcl/inc/PhysicalFontFace.hxx
blob: 679420a05fd1912a2dc8a8ae72457715038e415e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef INCLUDED_VCL_INC_PHYSICALFONTFACE_HXX
#define INCLUDED_VCL_INC_PHYSICALFONTFACE_HXX

#include <hb.h>

#include <vcl/fontcapabilities.hxx>
#include <salhelper/simplereferenceobject.hxx>
#include <rtl/ref.hxx>
#include <vcl/dllapi.h>
#include <vcl/outdev.hxx>

#include "fontattributes.hxx"

class LogicalFontInstance;
struct FontMatchStatus;
class FontSelectPattern;
class PhysicalFontFamily;

struct FontMatchStatus
{
public:
    int                 mnFaceMatch;
    int                 mnHeightMatch;
    int                 mnWidthMatch;
    const OUString*     mpTargetStyleName;
};


// TODO: no more direct access to members
// TODO: get rid of height/width for scalable fonts
// TODO: make cloning cheaper

/**
 * abstract base class for physical font faces
 *
 * It acts as a factory for its corresponding LogicalFontInstances and
 * can be extended to cache device and font instance specific data.
 */
class VCL_PLUGIN_PUBLIC PhysicalFontFace : public FontAttributes, public salhelper::SimpleReferenceObject
{
public:
    ~PhysicalFontFace();

    virtual rtl::Reference<LogicalFontInstance> CreateFontInstance(const FontSelectPattern&) const = 0;

    int                     GetHeight() const           { return mnHeight; }
    int                     GetWidth() const            { return mnWidth; }
    virtual sal_IntPtr      GetFontId() const = 0;

    bool                    IsBetterMatch( const FontSelectPattern&, FontMatchStatus& ) const;
    sal_Int32               CompareWithSize( const PhysicalFontFace& ) const;
    sal_Int32               CompareIgnoreSize( const PhysicalFontFace& ) const;

    const FontCharMapRef&   GetCharMap() const;
    bool                    GetCapabilities(vcl::FontCapabilities &rCapabilities) const;

    hb_face_t*              GetHbFace() const;
    virtual hb_blob_t*      GetHbTable(hb_tag_t nTag) const = 0;

protected:
    explicit PhysicalFontFace(const FontAttributes&);
    void                    SetBitmapSize( int nW, int nH ) { mnWidth=nW; mnHeight=nH; }

    long                    mnWidth;    // Width (in pixels)
    long                    mnHeight;   // Height (in pixels)

    mutable hb_face_t*      mpHbFace;

    mutable FontCharMapRef  mxCharMap;
    mutable bool            mbCapabilitiesRead;
    mutable vcl::FontCapabilities maCapabilities;
};

#endif // INCLUDED_VCL_INC_PHYSICALFONTFACE_HXX

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */