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15250 | jghali | 1 | /* |
2 | For general Scribus (>=1.3.2) copyright and licensing information please refer |
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3 | to the COPYING file provided with the program. Following this notice may exist |
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4 | a copyright and/or license notice that predates the release of Scribus 1.3.2 |
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5 | for which a new license (GPL+exception) is in place. |
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6 | */ |
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7 | |||
5980 | avox | 8 | #ifndef FT_FACE_H |
9 | #define FT_FACE_H |
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10 | |||
10223 | cbradney | 11 | #include <QString> |
12 | #include <QMap> |
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5980 | avox | 13 | |
14 | #include "scribusapi.h" |
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15 | |||
16 | #include "fonts/scface.h" |
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17 | |||
18 | #include <ft2build.h> |
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19 | #include FT_FREETYPE_H |
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20 | |||
21 | #include "fpointarray.h" |
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22 | |||
23 | FT_Error ftIOFunc( FT_Stream stream, unsigned long pos, unsigned char* buffer, unsigned long count); |
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24 | |||
25 | |||
26 | /*! \brief Base Class FtFace provides an ScFace private implementation |
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27 | for Freetype based fonts. Subclasses are ScFace_ps and ScFace_ttf. |
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28 | |||
29 | Below is the old docs for class Foi: |
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30 | |||
31 | This is subclassed by a class to handle Type1 fonts, a class |
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32 | to handle TrueType fonts, and potentially any other type that becomes appropriate in |
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33 | the future. |
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34 | Note the virtual destructor, needed to ensure that the correct destructor is called |
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35 | for subclasses |
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36 | |||
37 | The RealName field has been changed from a data member to a member function. |
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38 | This is because the only place the PostScript real name of a font is required is |
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39 | the printing code, so it's cheaper to extract this information only when it is |
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40 | required, for just the used fonts, than for every one of potentially hundreds at |
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41 | application startup! This also allows for the fact that truetype fonts will require |
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42 | a different method of extracting their names. |
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43 | |||
44 | One implication of using a base class/subclass model for fonts: It is no longer |
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45 | possible to store the ScFace structures in a QMap. This is because QMap allocates |
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46 | its own structures, and copies the supplied data to them. A QMap<QString,ScFace> |
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47 | would demote all subclasses to ScFace classes, and hence break the polymorphism. |
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48 | QDict can be used instead, with very little change to the rest of the code, since |
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49 | it stores references to the data instead of copying the data. With AutoDelete set |
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50 | to true, it will automatically dispose of all data when its destructor is called, |
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51 | so there are no extra cleaning-up chores to take care of. |
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52 | */ |
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53 | struct SCRIBUS_API FtFace : public ScFace::ScFaceData |
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54 | { |
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55 | |||
56 | FtFace(QString fam, QString sty, QString variant, QString scname, |
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57 | QString psname, QString path, int face); |
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58 | |||
59 | FT_Face ftFace() const; |
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60 | |||
61 | virtual ~FtFace(); |
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62 | |||
63 | // font metrics |
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13162 | malex | 64 | qreal ascent(qreal sz=1.0) const { return m_ascent * sz; } |
65 | qreal descent(qreal sz=1.0) const { return m_descent * sz; } |
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66 | qreal xHeight(qreal sz=1.0) const { return m_xHeight * sz; } |
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67 | qreal capHeight(qreal sz=1.0) const { return m_capHeight * sz; } |
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68 | qreal height(qreal sz=1.0) const { return m_height * sz; } |
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69 | qreal strikeoutPos(qreal sz=1.0) const { return m_strikeoutPos * sz; } |
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70 | qreal underlinePos(qreal sz=1.0) const { return m_underlinePos * sz; } |
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71 | qreal strokeWidth(qreal /*sz*/) const { return m_strokeWidth; } |
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72 | qreal maxAdvanceWidth(qreal sz=1.0) const { return m_maxAdvanceWidth * sz; } |
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6213 | fschmid | 73 | QString ascentAsString() const { return Ascent; } |
74 | QString descentAsString() const { return Descender; } |
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75 | QString capHeightAsString() const { return CapHeight; } |
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76 | QString FontBBoxAsString() const { return FontBBox; } |
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77 | QString ItalicAngleAsString() const { return ItalicAngle; } |
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5980 | avox | 78 | |
79 | |||
13162 | malex | 80 | //FIXME QMap<QString,QString> fontDictionary(qreal sz=1.0) const; |
5980 | avox | 81 | |
82 | uint char2CMap(QChar ch) const; |
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83 | |||
13162 | malex | 84 | qreal glyphKerning (uint gl1, uint gl2, qreal sz) const; |
85 | // GlyphMetrics glyphBBox (uint gl, qreal sz) const; |
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5980 | avox | 86 | |
87 | void RawData (QByteArray & bb) const; |
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6163 | avox | 88 | bool glyphNames(QMap<uint, std::pair<QChar, QString> >& GList) const; |
5980 | avox | 89 | void load () const; |
90 | void unload () const; |
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91 | void loadGlyph (uint ch) const; |
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92 | |||
93 | protected: |
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94 | mutable FT_Face m_face; |
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95 | |||
96 | static FT_Library library; |
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97 | |||
6213 | fschmid | 98 | mutable QString Ascent; |
99 | mutable QString CapHeight; |
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100 | mutable QString Descender; |
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101 | mutable QString ItalicAngle; |
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102 | mutable QString StdVW; |
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5980 | avox | 103 | QString FontEnc; |
6213 | fschmid | 104 | mutable QString FontBBox; |
5980 | avox | 105 | |
106 | mutable int m_encoding; |
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107 | |||
13162 | malex | 108 | mutable qreal m_uniEM; |
109 | mutable qreal m_ascent; |
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110 | mutable qreal m_descent; |
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111 | mutable qreal m_height; |
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112 | mutable qreal m_xHeight; |
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113 | mutable qreal m_capHeight; |
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114 | mutable qreal m_maxAdvanceWidth; |
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115 | mutable qreal m_underlinePos; |
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116 | mutable qreal m_strikeoutPos; |
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117 | mutable qreal m_strokeWidth; |
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5980 | avox | 118 | |
119 | }; |
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120 | |||
121 | #endif |