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juce::CustomTypeface Class Reference

#include <juce_graphics.h>

Inheritance diagram for juce::CustomTypeface:
juce::Typeface juce::ReferenceCountedObject

Classes

class  GlyphInfo
 

Public Member Functions

 CustomTypeface ()
 
 CustomTypeface (InputStream &serialisedTypefaceStream)
 
 ~CustomTypeface ()
 
void clear ()
 
void setCharacteristics (const String &fontFamily, float ascent, bool isBold, bool isItalic, juce_wchar defaultCharacter) noexcept
 
void setCharacteristics (const String &fontFamily, const String &fontStyle, float ascent, juce_wchar defaultCharacter) noexcept
 
void addGlyph (juce_wchar character, const Path &path, float width) noexcept
 
void addKerningPair (juce_wchar char1, juce_wchar char2, float extraAmount) noexcept
 
void addGlyphsFromOtherTypeface (Typeface &typefaceToCopy, juce_wchar characterStartIndex, int numCharacters) noexcept
 
bool writeToStream (OutputStream &outputStream)
 
float getAscent () const override
 
float getDescent () const override
 
float getHeightToPointsFactor () const override
 
float getStringWidth (const String &) override
 
void getGlyphPositions (const String &, Array< int > &glyphs, Array< float > &xOffsets) override
 
bool getOutlineForGlyph (int glyphNumber, Path &) override
 
EdgeTablegetEdgeTableForGlyph (int glyphNumber, const AffineTransform &, float fontHeight) override
 
- Public Member Functions inherited from juce::Typeface
const StringgetName () const noexcept
 
const StringgetStyle () const noexcept
 
virtual ~Typeface ()
 
virtual bool isSuitableForFont (const Font &) const
 
virtual bool isHinted () const
 
void applyVerticalHintingTransform (float fontHeight, Path &path)
 
- Public Member Functions inherited from juce::ReferenceCountedObject
void incReferenceCount () noexcept
 
void decReferenceCount () noexcept
 
bool decReferenceCountWithoutDeleting () noexcept
 
int getReferenceCount () const noexcept
 

Protected Member Functions

virtual bool loadGlyphIfPossible (juce_wchar characterNeeded)
 
- Protected Member Functions inherited from juce::Typeface
 Typeface (const String &name, const String &style) noexcept
 
- Protected Member Functions inherited from juce::ReferenceCountedObject
 ReferenceCountedObject ()
 
virtual ~ReferenceCountedObject ()
 
void resetReferenceCount () noexcept
 

Protected Attributes

juce_wchar defaultCharacter
 
float ascent
 
- Protected Attributes inherited from juce::Typeface
String name
 
String style
 

Friends

struct ContainerDeletePolicy< GlyphInfo >
 

Additional Inherited Members

- Public Types inherited from juce::Typeface
typedef ReferenceCountedObjectPtr< TypefacePtr
 
- Static Public Member Functions inherited from juce::Typeface
static Ptr createSystemTypefaceFor (const Font &font)
 
static Ptr createSystemTypefaceFor (const void *fontFileData, size_t fontFileDataSize)
 
static void setTypefaceCacheSize (int numFontsToCache)
 
static void clearTypefaceCache ()
 
static void scanFolderForFonts (const File &folder)
 
- Static Protected Member Functions inherited from juce::Typeface
static Ptr getFallbackTypeface ()
 

Detailed Description

A typeface that can be populated with custom glyphs.

You can create a CustomTypeface if you need one that contains your own glyphs, or if you need to load a typeface from a Juce-formatted binary stream.

If you want to create a copy of a native face, you can use addGlyphsFromOtherTypeface() to copy glyphs into this face.

NOTE! For most people this class is almost certainly NOT the right tool to use! If what you want to do is to embed a font into your exe, then your best plan is probably to embed your TTF/OTF font file into your binary using the Introjucer, and then call Typeface::createSystemTypefaceFor() to load it from memory.

See also
Typeface, Font

Constructor & Destructor Documentation

◆ CustomTypeface() [1/2]

CustomTypeface::CustomTypeface ( )

Creates a new, empty typeface.

◆ CustomTypeface() [2/2]

CustomTypeface::CustomTypeface ( InputStream serialisedTypefaceStream)
explicit

Loads a typeface from a previously saved stream. The stream must have been created by writeToStream().

NOTE! Since this class was written, support was added for loading real font files from memory, so for most people, using Typeface::createSystemTypefaceFor() to load a real font is more appropriate than using this class to store it in a proprietary format.

See also
writeToStream

◆ ~CustomTypeface()

CustomTypeface::~CustomTypeface ( )

Destructor.

Member Function Documentation

◆ addGlyph()

void CustomTypeface::addGlyph ( juce_wchar  character,
const Path path,
float  width 
)
noexcept

Adds a glyph to the typeface.

The path that is passed in is normalised so that the font height is 1.0, and its origin is the anchor point of the character on its baseline.

The width is the nominal width of the character, and any extra kerning values that are specified will be added to this width.

◆ addGlyphsFromOtherTypeface()

void CustomTypeface::addGlyphsFromOtherTypeface ( Typeface typefaceToCopy,
juce_wchar  characterStartIndex,
int  numCharacters 
)
noexcept

Adds a range of glyphs from another typeface. This will attempt to pull in the paths and kerning information from another typeface and add it to this one.

◆ addKerningPair()

void CustomTypeface::addKerningPair ( juce_wchar  char1,
juce_wchar  char2,
float  extraAmount 
)
noexcept

Specifies an extra kerning amount to be used between a pair of characters. The amount will be added to the nominal width of the first character when laying out a string.

◆ clear()

void CustomTypeface::clear ( )

Resets this typeface, deleting all its glyphs and settings.

◆ getAscent()

float CustomTypeface::getAscent ( ) const
overridevirtual

Returns the ascent of the font, as a proportion of its height. The height is considered to always be normalised as 1.0, so this will be a value less that 1.0, indicating the proportion of the font that lies above its baseline.

Implements juce::Typeface.

◆ getDescent()

float CustomTypeface::getDescent ( ) const
overridevirtual

Returns the descent of the font, as a proportion of its height. The height is considered to always be normalised as 1.0, so this will be a value less that 1.0, indicating the proportion of the font that lies below its baseline.

Implements juce::Typeface.

◆ getEdgeTableForGlyph()

EdgeTable * CustomTypeface::getEdgeTableForGlyph ( int  glyphNumber,
const AffineTransform transform,
float  fontHeight 
)
overridevirtual

Returns a new EdgeTable that contains the path for the givem glyph, with the specified transform applied.

Reimplemented from juce::Typeface.

◆ getGlyphPositions()

void CustomTypeface::getGlyphPositions ( const String text,
Array< int > &  glyphs,
Array< float > &  xOffsets 
)
overridevirtual

Converts a line of text into its glyph numbers and their positions. The distances returned are based on the font having an normalised height of 1.0. You should never need to call this directly! Use Font::getGlyphPositions() instead!

Implements juce::Typeface.

◆ getHeightToPointsFactor()

float CustomTypeface::getHeightToPointsFactor ( ) const
overridevirtual

Returns the value by which you should multiply a juce font-height value to convert it to the equivalent point-size.

Implements juce::Typeface.

◆ getOutlineForGlyph()

bool CustomTypeface::getOutlineForGlyph ( int  glyphNumber,
Path path 
)
overridevirtual

Returns the outline for a glyph. The path returned will be normalised to a font height of 1.0.

Implements juce::Typeface.

◆ getStringWidth()

float CustomTypeface::getStringWidth ( const String text)
overridevirtual

Measures the width of a line of text. The distance returned is based on the font having an normalised height of 1.0. You should never need to call this directly! Use Font::getStringWidth() instead!

Implements juce::Typeface.

◆ loadGlyphIfPossible()

bool CustomTypeface::loadGlyphIfPossible ( juce_wchar  characterNeeded)
protectedvirtual

If a subclass overrides this, it can load glyphs into the font on-demand. When methods such as getGlyphPositions() or getOutlineForGlyph() are asked for a particular character and there's no corresponding glyph, they'll call this method so that a subclass can try to add that glyph, returning true if it manages to do so.

◆ setCharacteristics() [1/2]

void CustomTypeface::setCharacteristics ( const String fontFamily,
float  ascent,
bool  isBold,
bool  isItalic,
juce_wchar  defaultCharacter 
)
noexcept

Sets the vital statistics for the typeface.

Parameters
fontFamilythe typeface's font family
ascentthe ascent - this is normalised to a height of 1.0 and this is the value that will be returned by Typeface::getAscent(). The descent is assumed to be (1.0 - ascent)
isBoldshould be true if the typeface is bold
isItalicshould be true if the typeface is italic
defaultCharacterthe character to be used as a replacement if there's no glyph available for the character that's being drawn

◆ setCharacteristics() [2/2]

void CustomTypeface::setCharacteristics ( const String fontFamily,
const String fontStyle,
float  ascent,
juce_wchar  defaultCharacter 
)
noexcept

Sets the vital statistics for the typeface.

Parameters
fontFamilythe typeface's font family
fontStylethe typeface's font style
ascentthe ascent - this is normalised to a height of 1.0 and this is the value that will be returned by Typeface::getAscent(). The descent is assumed to be (1.0 - ascent)
defaultCharacterthe character to be used as a replacement if there's no glyph available for the character that's being drawn

◆ writeToStream()

bool CustomTypeface::writeToStream ( OutputStream outputStream)

Saves this typeface as a Juce-formatted font file. A CustomTypeface can be created to reload the data that is written - see the CustomTypeface constructor.

NOTE! Since this class was written, support was added for loading real font files from memory, so for most people, using Typeface::createSystemTypefaceFor() to load a real font is more appropriate than using this class to store it in a proprietary format.

Friends And Related Function Documentation

◆ ContainerDeletePolicy< GlyphInfo >

friend struct ContainerDeletePolicy< GlyphInfo >
friend

Member Data Documentation

◆ ascent

float juce::CustomTypeface::ascent
protected

◆ defaultCharacter

juce_wchar juce::CustomTypeface::defaultCharacter
protected

The documentation for this class was generated from the following files: