summaryrefslogtreecommitdiff
path: root/vcl/source/font/PhysicalFontFace.cxx
blob: d356438e43a1713062b9b3e56f8b53ffabd3092d (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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
/* -*- 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 .
 */

#include <sal/types.h>
#include <tools/fontenum.hxx>
#include <unotools/fontdefs.hxx>

#include <fontinstance.hxx>
#include <fontattributes.hxx>

#include <PhysicalFontFace.hxx>

PhysicalFontFace::PhysicalFontFace( const FontAttributes& rDFA )
    : FontAttributes( rDFA )
    , mnWidth(0)
    , mnHeight(0)
{
    // StarSymbol is a unicode font, but it still deserves the symbol flag
    if( !IsSymbolFont() )
        if ( IsStarSymbol( GetFamilyName() ) )
            SetSymbolFlag( true );
}

PhysicalFontFace::PhysicalFontFace( const PhysicalFontFace& other )
    : FontAttributes( other )
    , salhelper::SimpleReferenceObject()
    , mnWidth(other.mnWidth)
    , mnHeight(other.mnWidth)
{
}

rtl::Reference<LogicalFontInstance> PhysicalFontFace::CreateFontInstance(const FontSelectPattern& rFSD) const
{
    return new LogicalFontInstance(*this, rFSD);
}

sal_Int32 PhysicalFontFace::CompareIgnoreSize( const PhysicalFontFace& rOther ) const
{
    // compare their width, weight, italic, style name and family name
    if( GetWidthType() < rOther.GetWidthType() )
        return -1;
    else if( GetWidthType() > rOther.GetWidthType() )
        return 1;

    if( GetWeight() < rOther.GetWeight() )
        return -1;
    else if( GetWeight() > rOther.GetWeight() )
        return 1;

    if( GetItalic() < rOther.GetItalic() )
        return -1;
    else if( GetItalic() > rOther.GetItalic() )
        return 1;

    sal_Int32 nRet = GetFamilyName().compareTo( rOther.GetFamilyName() );

    if (nRet == 0)
    {
        nRet = GetStyleName().compareTo( rOther.GetStyleName() );
    }

    return nRet;
}

sal_Int32 PhysicalFontFace::CompareWithSize( const PhysicalFontFace& rOther ) const
{
    sal_Int32 nCompare = CompareIgnoreSize( rOther );
    if (nCompare != 0)
        return nCompare;

    if( mnHeight < rOther.mnHeight )
        return -1;
    else if( mnHeight > rOther.mnHeight )
        return 1;

    if( mnWidth < rOther.mnWidth )
        return -1;
    else if( mnWidth > rOther.mnWidth )
        return 1;

    return 0;
}

bool PhysicalFontFace::IsBetterMatch( const FontSelectPattern& rFSD, FontMatchStatus& rStatus ) const
{
    int nMatch = 0;

    const OUString& rFontName = rFSD.maTargetName;
    if( rFontName.equalsIgnoreAsciiCase( GetFamilyName() ) )
        nMatch += 240000;

    if( rStatus.mpTargetStyleName
    &&  GetStyleName().equalsIgnoreAsciiCase( *rStatus.mpTargetStyleName ) )
        nMatch += 120000;

    if( (rFSD.GetPitch() != PITCH_DONTKNOW) && (rFSD.GetPitch() == GetPitch()) )
        nMatch += 20000;

    // prefer NORMAL font width
    // TODO: change when the upper layers can tell their width preference
    if( GetWidthType() == WIDTH_NORMAL )
        nMatch += 400;
    else if( (GetWidthType() == WIDTH_SEMI_EXPANDED) || (GetWidthType() == WIDTH_SEMI_CONDENSED) )
        nMatch += 300;

    if( rFSD.GetWeight() != WEIGHT_DONTKNOW )
    {
        // if not bold or requiring emboldening prefer light fonts to bold fonts
        FontWeight ePatternWeight = rFSD.mbEmbolden ? WEIGHT_NORMAL : rFSD.GetWeight();

        int nReqWeight = static_cast<int>(ePatternWeight);
        if ( ePatternWeight > WEIGHT_MEDIUM )
            nReqWeight += 100;

        int nGivenWeight = static_cast<int>(GetWeight());
        if( GetWeight() > WEIGHT_MEDIUM )
            nGivenWeight += 100;

        int nWeightDiff = nReqWeight - nGivenWeight;

        if ( nWeightDiff == 0 )
            nMatch += 1000;
        else if ( nWeightDiff == +1 || nWeightDiff == -1 )
            nMatch += 700;
        else if ( nWeightDiff < +50 && nWeightDiff > -50)
            nMatch += 200;
    }
    else // requested weight == WEIGHT_DONTKNOW
    {
        // prefer NORMAL font weight
        // TODO: change when the upper layers can tell their weight preference
        if( GetWeight() == WEIGHT_NORMAL )
            nMatch += 450;
        else if( GetWeight() == WEIGHT_MEDIUM )
            nMatch += 350;
        else if( (GetWeight() == WEIGHT_SEMILIGHT) || (GetWeight() == WEIGHT_SEMIBOLD) )
            nMatch += 200;
        else if( GetWeight() == WEIGHT_LIGHT )
            nMatch += 150;
    }

    // if requiring custom matrix to fake italic, prefer upright font
    FontItalic ePatternItalic = rFSD.maItalicMatrix != ItalicMatrix() ? ITALIC_NONE : rFSD.GetItalic();

    if ( ePatternItalic == ITALIC_NONE )
    {
        if( GetItalic() == ITALIC_NONE )
            nMatch += 900;
    }
    else
    {
        if( ePatternItalic == GetItalic() )
            nMatch += 900;
        else if( GetItalic() != ITALIC_NONE )
            nMatch += 600;
    }

    int nHeightMatch = 0;
    int nWidthMatch = 0;

    if( rFSD.mnOrientation != 0 )
        nMatch += 80;
    else if( rFSD.mnWidth != 0 )
        nMatch += 25;
    else
        nMatch += 5;

    if( rStatus.mnFaceMatch > nMatch )
        return false;
    else if( rStatus.mnFaceMatch < nMatch )
    {
        rStatus.mnFaceMatch      = nMatch;
        rStatus.mnHeightMatch    = nHeightMatch;
        rStatus.mnWidthMatch     = nWidthMatch;
        return true;
    }

    // when two fonts are still competing prefer the
    // one with the best matching height
    if( rStatus.mnHeightMatch > nHeightMatch )
        return false;
    else if( rStatus.mnHeightMatch < nHeightMatch )
    {
        rStatus.mnHeightMatch    = nHeightMatch;
        rStatus.mnWidthMatch     = nWidthMatch;
        return true;
    }

    if( rStatus.mnWidthMatch > nWidthMatch )
        return false;

    rStatus.mnWidthMatch = nWidthMatch;
    return true;
}

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