Font resource. More...

#include <Urho3D/UI/Font.h>

Inheritance diagram for Urho3D::Font:
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Collaboration diagram for Urho3D::Font:
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Public Member Functions

 Font (Context *context)
 Construct.
 
virtual ~Font () override
 Destruct.
 
virtual bool BeginLoad (Deserializer &source) override
 Load resource from stream. May be called from a worker thread. Return true if successful.
 
bool SaveXML (Serializer &dest, int pointSize, bool usedGlyphs=false, const String &indentation="\t")
 Save resource as a new bitmap font type in XML format. Return true if successful.
 
void SetAbsoluteGlyphOffset (const IntVector2 &offset)
 Set absolute (in pixels) position adjustment for glyphs.
 
void SetScaledGlyphOffset (const Vector2 &offset)
 Set point size scaled position adjustment for glyphs.
 
FontFaceGetFace (float pointSize)
 Return font face. Pack and render to a texture if not rendered yet. Return null on error.
 
FontType GetFontType () const
 Return font type.
 
bool IsSDFFont () const
 Is signed distance field font.
 
const IntVector2GetAbsoluteGlyphOffset () const
 Return absolute position adjustment for glyphs.
 
const Vector2GetScaledGlyphOffset () const
 Return point size scaled position adjustment for glyphs.
 
IntVector2 GetTotalGlyphOffset (float pointSize) const
 Return the total effective offset for a point size.
 
void ReleaseFaces ()
 Release font faces and recreate them next time when requested. Called when font textures lost or global font properties change.
 
- Public Member Functions inherited from Urho3D::Resource
 Resource (Context *context)
 Construct.
 
bool Load (Deserializer &source)
 Load resource synchronously. Call both BeginLoad() & EndLoad() and return true if both succeeded.
 
virtual bool EndLoad ()
 Finish resource loading. Always called from the main thread. Return true if successful.
 
virtual bool Save (Serializer &dest) const
 Save resource. Return true if successful.
 
bool LoadFile (const String &fileName)
 Load resource from file.
 
virtual bool SaveFile (const String &fileName) const
 Save resource to file.
 
void SetName (const String &name)
 Set name.
 
void SetMemoryUse (unsigned size)
 Set memory use in bytes, possibly approximate.
 
void ResetUseTimer ()
 Reset last used timer.
 
void SetAsyncLoadState (AsyncLoadState newState)
 Set the asynchronous loading state. Called by ResourceCache. Resources in the middle of asynchronous loading are not normally returned to user.
 
const StringGetName () const
 Return name.
 
StringHash GetNameHash () const
 Return name hash.
 
unsigned GetMemoryUse () const
 Return memory use in bytes, possibly approximate.
 
unsigned GetUseTimer ()
 Return time since last use in milliseconds. If referred to elsewhere than in the resource cache, returns always zero.
 
AsyncLoadState GetAsyncLoadState () const
 Return the asynchronous loading state.
 
- Public Member Functions inherited from Urho3D::Object
 Object (Context *context)
 Construct.
 
virtual ~Object () override
 Destruct. Clean up self from event sender & receiver structures.
 
virtual StringHash GetType () const =0
 Return type hash.
 
virtual const StringGetTypeName () const =0
 Return type name.
 
virtual const TypeInfoGetTypeInfo () const =0
 Return type info.
 
virtual void OnEvent (Object *sender, StringHash eventType, VariantMap &eventData)
 Handle event.
 
bool IsInstanceOf (StringHash type) const
 Check current instance is type of specified type.
 
bool IsInstanceOf (const TypeInfo *typeInfo) const
 Check current instance is type of specified type.
 
template<typename T >
bool IsInstanceOf () const
 Check current instance is type of specified class.
 
void SubscribeToEvent (StringHash eventType, EventHandler *handler)
 Subscribe to an event that can be sent by any sender.
 
void SubscribeToEvent (Object *sender, StringHash eventType, EventHandler *handler)
 Subscribe to a specific sender's event.
 
void SubscribeToEvent (StringHash eventType, const std::function< void(StringHash, VariantMap &)> &function, void *userData=nullptr)
 Subscribe to an event that can be sent by any sender.
 
void SubscribeToEvent (Object *sender, StringHash eventType, const std::function< void(StringHash, VariantMap &)> &function, void *userData=nullptr)
 Subscribe to a specific sender's event.
 
void UnsubscribeFromEvent (StringHash eventType)
 Unsubscribe from an event.
 
void UnsubscribeFromEvent (Object *sender, StringHash eventType)
 Unsubscribe from a specific sender's event.
 
void UnsubscribeFromEvents (Object *sender)
 Unsubscribe from a specific sender's events.
 
void UnsubscribeFromAllEvents ()
 Unsubscribe from all events.
 
void UnsubscribeFromAllEventsExcept (const PODVector< StringHash > &exceptions, bool onlyUserData)
 Unsubscribe from all events except those listed, and optionally only those with userdata (script registered events.)
 
void SendEvent (StringHash eventType)
 Send event to all subscribers.
 
void SendEvent (StringHash eventType, VariantMap &eventData)
 Send event with parameters to all subscribers.
 
VariantMapGetEventDataMap () const
 Return a preallocated map for event data. Used for optimization to avoid constant re-allocation of event data maps.
 
template<typename... Args>
void SendEvent (StringHash eventType, Args...args)
 Send event with variadic parameter pairs to all subscribers. The parameter pairs is a list of paramID and paramValue separated by comma, one pair after another.
 
ContextGetContext () const
 Return execution context.
 
const VariantGetGlobalVar (StringHash key) const
 Return global variable based on key.
 
const VariantMapGetGlobalVars () const
 Return all global variables.
 
void SetGlobalVar (StringHash key, const Variant &value)
 Set global variable with the respective key and value.
 
ObjectGetSubsystem (StringHash type) const
 Return subsystem by type.
 
ObjectGetEventSender () const
 Return active event sender. Null outside event handling.
 
EventHandlerGetEventHandler () const
 Return active event handler. Null outside event handling.
 
bool HasSubscribedToEvent (StringHash eventType) const
 Return whether has subscribed to an event without specific sender.
 
bool HasSubscribedToEvent (Object *sender, StringHash eventType) const
 Return whether has subscribed to a specific sender's event.
 
bool HasEventHandlers () const
 Return whether has subscribed to any event.
 
template<class T >
T * GetSubsystem () const
 Template version of returning a subsystem.
 
const StringGetCategory () const
 Return object category. Categories are (optionally) registered along with the object factory. Return an empty string if the object category is not registered.
 
- Public Member Functions inherited from Urho3D::RefCounted
 RefCounted ()
 Construct. Allocate the reference count structure and set an initial self weak reference.
 
virtual ~RefCounted ()
 Destruct. Mark as expired and also delete the reference count structure if no outside weak references exist.
 
void AddRef ()
 Increment reference count. Can also be called outside of a SharedPtr for traditional reference counting.
 
void ReleaseRef ()
 Decrement reference count and delete self if no more references. Can also be called outside of a SharedPtr for traditional reference counting.
 
int Refs () const
 Return reference count.
 
int WeakRefs () const
 Return weak reference count.
 
RefCountRefCountPtr ()
 Return pointer to the reference count structure.
 

Static Public Member Functions

static void RegisterObject (Context *context)
 Register object factory.
 
- Static Public Member Functions inherited from Urho3D::Object
static const TypeInfoGetTypeInfoStatic ()
 Return type info static.
 

Private Member Functions

 URHO3D_OBJECT (Font, Resource)
 
void LoadParameters ()
 Load font glyph offset parameters from an optional XML file. Called internally when loading TrueType fonts.
 
FontFaceGetFaceFreeType (float pointSize)
 Return font face using FreeType. Called internally. Return null on error.
 
FontFaceGetFaceBitmap (float pointSize)
 Return bitmap font face. Called internally. Return null on error.
 

Private Attributes

HashMap< int, SharedPtr
< FontFace > > 
faces_
 Created faces.
 
SharedArrayPtr< unsigned char > fontData_
 Font data.
 
unsigned fontDataSize_
 Size of font data.
 
IntVector2 absoluteOffset_
 Absolute position adjustment for glyphs.
 
Vector2 scaledOffset_
 Point size scaled position adjustment for glyphs.
 
FontType fontType_
 Font type.
 
bool sdfFont_
 Signed distance field font flag.
 

Additional Inherited Members

- Protected Attributes inherited from Urho3D::Object
Contextcontext_
 Execution context.
 

Detailed Description

Font resource.


The documentation for this class was generated from the following files:
  • Source/Urho3D/UI/Font.h
  • Source/Urho3D/UI/Font.cpp