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cgv::media::font::font_face Class Referenceabstract

interface class for different faces of a font, which can be constructed from a font More...

#include <font.h>

Inheritance diagram for cgv::media::font::font_face:
cgv::base::base cgv::data::ref_counted cgv::reflect::self_reflection_tag

Public Member Functions

 font_face (int _ffa)
 construct from attributes that are declared in the enum FontFaceAttributes
 
std::string get_type_name () const
 returns "font_face"
 
virtual int get_attributes () const
 return the attributes
 
virtual void enumerate_sizes (std::vector< int > &supported_sizes) const =0
 enumerate the supported sizes; if nothing is enumerated any size is supported
 
virtual float measure_text_width (const std::string &text, float font_size) const =0
 return the width of a text printed in the given size, which is measured in pixels
 
virtual void enable (void *context_ptr, float _font_size)=0
 enables font face of given size and should be called once before calling draw_text functions
 
virtual void draw_text (float &x, float &y, const std::string &text) const =0
 draw text at given location with font_face implementation dependent rendering api and advance location
 
- Public Member Functions inherited from cgv::base::base
virtual std::string get_default_options () const
 overload to provide default options for registration
 
std::string get_name_or_type_name () const
 determine name of instance by checking cgv::base::named interface and in failure fallback to get_type_name()
 
virtual void on_register ()
 overload to handle register events that is sent after the instance has been registered
 
virtual void unregister ()
 overload to handle unregistration of instances
 
virtual bool on_exit_request ()
 overload to handle the appication exit request, return true if exiting is allowed and false otherwise
 
virtual void stream_stats (std::ostream &)
 overload to show the content of this object
 
virtual data::ref_ptr< named, trueget_named ()
 perform downcast to named
 
virtual data::ref_ptr< node, trueget_node ()
 perform downcast to node
 
virtual data::ref_ptr< group, trueget_group ()
 perform downcast to group
 
virtual data::ref_ptr< const named, trueget_named_const () const
 perform downcast to const named
 
virtual data::ref_ptr< const node, trueget_node_const () const
 perform downcast to const node
 
virtual data::ref_ptr< const group, trueget_group_const () const
 perform downcast to const group
 
template<class T >
data::ref_ptr< T, truecast ()
 cast to arbitrary class, but use the casts to named, node and group from the interface
 
template<class T >
data::ref_ptr< const T, truecast_const ()
 const cast to arbitrary class, but use the casts to named, node and group from the interface
 
template<class T >
Tget_interface ()
 use dynamic type cast to check for the given interface
 
template<class T >
const Tget_const_interface () const
 use dynamic type cast to check for the given interface
 
virtual void update ()
 this virtual update allows for example to ask a view to update the viewed value. The default implementation is empty.
 
virtual voidget_user_data () const
 this virtual method allows to pass application specific data for internal purposes
 
virtual bool self_reflect (cgv::reflect::reflection_handler &)
 used for simple self reflection
 
virtual std::string get_property_declarations ()
 return a semicolon separated list of property declarations
 
virtual bool set_void (const std::string &property, const std::string &value_type, const void *value_ptr)
 abstract interface for the setter of a dynamic property.
 
virtual void on_set (void *member_ptr)
 this callback is called when the set_void method has changed a member and can be overloaded in derived class
 
virtual bool get_void (const std::string &property, const std::string &value_type, void *value_ptr)
 abstract interface for the getter of a dynamic property.
 
virtual bool call_void (const std::string &method, const std::vector< std::string > &param_value_types, const std::vector< const void * > &param_value_ptrs, const std::string &result_type="", void *result_value_ptr=0)
 abstract interface to call an action
 
void set (const std::string &property, const char *value)
 specialization of set method to support const char* as strings
 
template<typename T >
void set (const std::string &property, const T &value)
 set a property of the element to the given value and perform standard conversions if necessary.
 
template<typename T >
T get (const std::string &property)
 query a property of the element and perform standard conversions if necessary.
 
void multi_set (const std::string &property_assignments, bool report_error=true)
 set several properties
 
bool is_property (const std::string &property_name, std::string *type_name=0)
 check if the given name specifies a property.
 
voidfind_member_ptr (const std::string &property_name, std::string *type_name=0)
 find a member pointer by name.
 
- Public Member Functions inherited from cgv::data::ref_counted
int get_ref_count () const
 read access to current count
 

Protected Attributes

int ffa
 store the actual attributes of the font face
 

Additional Inherited Members

- Protected Member Functions inherited from cgv::base::base
virtual ~base ()
 make destructor virtual and not accessible from outside
 
- Protected Member Functions inherited from cgv::data::ref_counted
 ref_counted ()
 constructor initializes the count to 0
 
void set_ref_count (int c) const
 write access is also const to allow ref counted pointers to const instances
 
- Static Protected Member Functions inherited from cgv::base::base
template<class T >
static data::ref_ptr< T, truecast_dynamic (base *b)
 use dynamic cast for upcast to given class
 

Detailed Description

interface class for different faces of a font, which can be constructed from a font

Definition at line 29 of file font.h.

Constructor & Destructor Documentation

◆ font_face()

cgv::media::font::font_face::font_face ( int  _ffa)

construct from attributes that are declared in the enum FontFaceAttributes

construct from attributes

Definition at line 9 of file font.cxx.

Member Function Documentation

◆ get_attributes()

int cgv::media::font::font_face::get_attributes ( ) const
virtual

return the attributes

Definition at line 19 of file font.cxx.

References ffa.

◆ get_type_name()

std::string cgv::media::font::font_face::get_type_name ( ) const
virtual

returns "font_face"

Reimplemented from cgv::base::base.

Definition at line 13 of file font.cxx.

Member Data Documentation

◆ ffa

int cgv::media::font::font_face::ffa
protected

store the actual attributes of the font face

Definition at line 33 of file font.h.

Referenced by get_attributes().


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