Added logic, API and docs for wxDataViewModel::HasDefaultCompare indicating a compare...

[wxWidgets.git] / docs / latex / wx / font.tex

diff --git a/docs/latex/wx/font.tex b/docs/latex/wx/font.tex
index e76f024b30e8a7041ff4b4acafdd920de7a9e0e1..f456343766f83e7a185334ebba972107c5e3ef5f 100644 (file)
--- a/docs/latex/wx/font.tex
+++ b/docs/latex/wx/font.tex
@@ -4,6 +4,13 @@ A font is an object which determines the appearance of text. Fonts are
 used for drawing text to a device context, and setting the appearance of
 a window's text.
 
 used for drawing text to a device context, and setting the appearance of
 a window's text.
 

+This class uses \helpref{reference counting and copy-on-write}{trefcount}
+internally so that assignments between two instances of this class are very
+cheap. You can therefore use actual objects instead of pointers without
+efficiency problems. If an instance of this class is changed it will create
+its own data internally so that other instances, which previously shared the
+data using the reference counting, are not affected.
+

 You can retrieve the current system font settings with \helpref{wxSystemSettings}{wxsystemsettings}.
 
 \helpref{wxSystemSettings}{wxsystemsettings}
 You can retrieve the current system font settings with \helpref{wxSystemSettings}{wxsystemsettings}.
 
 \helpref{wxSystemSettings}{wxsystemsettings}


@@ -17,6 +24,10 @@ You can retrieve the current system font settings with \helpref{wxSystemSettings
 
 <wx/font.h>
 
 
 <wx/font.h>
 

+\wxheading{Library}
+
+\helpref{wxCore}{librarieslist}
+

 \wxheading{Constants}
 
 The possible values for the \arg{family} parameter of \helpref{wxFont
 \wxheading{Constants}
 
 The possible values for the \arg{family} parameter of \helpref{wxFont


@@ -165,6 +176,10 @@ wxSWISS\_FONT}
 
 Default constructor.
 
 
 Default constructor.
 

+\func{}{wxFont}{\param{const wxFont\&}{ font}}
+
+Copy constructor, uses \helpref{reference counting}{trefcount}.
+

 \func{}{wxFont}{\param{int}{ pointSize}, \param{wxFontFamily}{ family}, \param{int}{ style}, \param{wxFontWeight}{ weight},
  \param{const bool}{ underline = false}, \param{const wxString\& }{faceName = ""},
  \param{wxFontEncoding }{encoding = wxFONTENCODING\_DEFAULT}}
 \func{}{wxFont}{\param{int}{ pointSize}, \param{wxFontFamily}{ family}, \param{int}{ style}, \param{wxFontWeight}{ weight},
  \param{const bool}{ underline = false}, \param{const wxString\& }{faceName = ""},
  \param{wxFontEncoding }{encoding = wxFONTENCODING\_DEFAULT}}


@@ -244,12 +259,10 @@ and \helpref{wxDC::GetTextExtent}{wxdcgettextextent}.
 \func{}{\destruct{wxFont}}{\void}
 
 Destructor.
 \func{}{\destruct{wxFont}}{\void}
 
 Destructor.

+See \helpref{reference-counted object destruction}{refcountdestruct} for more info.

 
 \wxheading{Remarks}
 
 
 \wxheading{Remarks}
 

-The destructor may not delete the underlying font object of the native windowing
-system, since wxFont uses a reference counting system for efficiency.
-

 Although all remaining fonts are deleted when the application exits,
 the application should try to clean up all fonts itself. This is because
 wxWidgets cannot know if a pointer to the font object is stored in an
 Although all remaining fonts are deleted when the application exits,
 the application should try to clean up all fonts itself. This is because
 wxWidgets cannot know if a pointer to the font object is stored in an


@@ -304,12 +317,26 @@ family identifiers.
 
 \constfunc{wxString}{GetNativeFontInfoDesc}{\void}
 
 
 \constfunc{wxString}{GetNativeFontInfoDesc}{\void}
 

-Returns the platform-dependent string completely describing this font or an
-empty string if the font wasn't constructed using the native font description.
+Returns the platform-dependent string completely describing this font.
+Returned string is always non-empty.
+Note that the returned string is not meant to be shown or edited by the user: a typical
+use of this function is for serializing in string-form a wxFont object.

 
 \wxheading{See also}
 
 
 \wxheading{See also}
 

-\helpref{wxFont::SetNativeFontInfo}{wxfontsetnativefontinfo}
+\helpref{wxFont::SetNativeFontInfo}{wxfontsetnativefontinfo},\helpref{wxFont::GetNativeFontInfoUserDesc}{wxfontgetnativefontinfouserdesc}
+
+
+\membersection{wxFont::GetNativeFontInfoUserDesc}\label{wxfontgetnativefontinfouserdesc}
+
+\func{wxString}{GetNativeFontInfoUserDesc}{\void}
+
+Returns a user-friendly string for this font object. Returned string is always non-empty.
+Some examples of the formats of returned strings (which are platform-dependent) are in \helpref{SetNativeFontInfoUserDesc}{wxfontsetnativefontinfouserdesc}.
+
+\wxheading{See also}
+
+\helpref{wxFont::GetNativeFontInfoDesc}{wxfontgetnativefontinfodesc}

 
 
 \membersection{wxFont::GetPointSize}\label{wxfontgetpointsize}
 
 
 \membersection{wxFont::GetPointSize}\label{wxfontgetpointsize}


@@ -383,9 +410,9 @@ Using \texttt{New()} is currently the only way to directly create a font with
 the given size in pixels on platforms other than wxMSW.
 
 
 the given size in pixels on platforms other than wxMSW.
 
 

-\membersection{wxFont::Ok}\label{wxfontok}
+\membersection{wxFont::IsOk}\label{wxfontisok}

 
 

-\constfunc{bool}{Ok}{\void}
+\constfunc{bool}{IsOk}{\void}

 
 Returns {\tt true} if this object is a valid font, {\tt false} otherwise.
 
 
 Returns {\tt true} if this object is a valid font, {\tt false} otherwise.
 


@@ -404,9 +431,10 @@ Sets the default font encoding.
 
 \membersection{wxFont::SetFaceName}\label{wxfontsetfacename}
 
 
 \membersection{wxFont::SetFaceName}\label{wxfontsetfacename}
 

-\func{void}{SetFaceName}{\param{const wxString\& }{faceName}}
+\func{bool}{SetFaceName}{\param{const wxString\& }{faceName}}

 
 Sets the facename for the font.
 
 Sets the facename for the font.

+Returns \true if the given face name exists; \false otherwise.

 
 \wxheading{Parameters}
 
 
 \wxheading{Parameters}
 


@@ -452,12 +480,44 @@ Sets the font family.
 
 \membersection{wxFont::SetNativeFontInfo}\label{wxfontsetnativefontinfo}
 
 
 \membersection{wxFont::SetNativeFontInfo}\label{wxfontsetnativefontinfo}
 

-\func{void}{SetNativeFontInfo}{\param{const wxString\& }{info}}
+\func{bool}{SetNativeFontInfo}{\param{const wxString\& }{info}}

 
 

-Creates the font corresponding to the given native font description string
+Creates the font corresponding to the given native font description string and returns \true if
+the creation was successful.

 which must have been previously returned by
 \helpref{GetNativeFontInfoDesc}{wxfontgetnativefontinfodesc}. If the string is
 which must have been previously returned by
 \helpref{GetNativeFontInfoDesc}{wxfontgetnativefontinfodesc}. If the string is

-invalid, font is unchanged.
+invalid, font is unchanged. This function is typically used for de-serializing a wxFont
+object previously saved in a string-form.
+
+\wxheading{See also}
+
+\helpref{wxFont::SetNativeFontInfoUserDesc}{wxfontsetnativefontinfouserdesc}
+
+
+\membersection{wxFont::SetNativeFontInfoUserDesc}\label{wxfontsetnativefontinfouserdesc}
+
+\func{bool}{SetNativeFontInfoUserDesc}{\param{const wxString\& }{info}}
+
+Creates the font corresponding to the given native font description string and returns \true if
+the creation was successful.
+Unlike \helpref{SetNativeFontInfo}{wxfontsetnativefontinfo}, this function accepts
+strings which are user-friendly.
+Examples of accepted string formats are:
+
+\twocolwidtha{15cm}
+\begin{twocollist}\itemsep=0pt
+\twocolitem{Generic syntax}{Example}
+\twocolitem{on {\bf wxGTK2}: {\tt $[FACE-NAME]$ $[bold]$ $[oblique|italic]$ $[POINTSIZE]$}}{Monospace bold 10}
+\twocolitem{on {\bf wxMSW}: {\tt $[light|bold]$ $[italic]$ $[FACE-NAME]$ $[POINTSIZE]$ $[ENCODING]$}}{Tahoma 10 WINDOWS-1252}
+\twocolitem{on {\bf wxMac}: FIXME}{FIXME}
+\end{twocollist}
+
+For more detailed information about the allowed syntaxes you can look at the documentation of the native API used for font-rendering (e.g. \urlref{pango\_font\_description\_from\_string}{http://developer.gnome.org/doc/API/2.0/pango/pango-Fonts.html\#pango-font-description-from-string}).
+
+\wxheading{See also}
+
+\helpref{wxFont::SetNativeFontInfo}{wxfontsetnativefontinfo}
+

 
 
 \membersection{wxFont::SetPointSize}\label{wxfontsetpointsize}
 
 
 \membersection{wxFont::SetPointSize}\label{wxfontsetpointsize}


@@ -531,24 +591,21 @@ Sets the font weight.
 
 \func{wxFont\&}{operator $=$}{\param{const wxFont\& }{font}}
 
 
 \func{wxFont\&}{operator $=$}{\param{const wxFont\& }{font}}
 

-Assignment operator, using reference counting. Returns a reference
-to `this'.
+Assignment operator, using \helpref{reference counting}{trefcount}.

 
 
 \membersection{wxFont::operator $==$}\label{wxfontequals}
 
 \func{bool}{operator $==$}{\param{const wxFont\& }{font}}
 
 
 
 \membersection{wxFont::operator $==$}\label{wxfontequals}
 
 \func{bool}{operator $==$}{\param{const wxFont\& }{font}}
 

-Equality operator. Two fonts are equal if they contain pointers
-to the same underlying font data. It does not compare each attribute,
-so two independently-created fonts using the same parameters will
-fail the test.
+Equality operator.
+See \helpref{reference-counted object comparison}{refcountequality} for more info.

 
 
 \membersection{wxFont::operator $!=$}\label{wxfontnotequals}
 
 \func{bool}{operator $!=$}{\param{const wxFont\& }{font}}
 
 
 
 \membersection{wxFont::operator $!=$}\label{wxfontnotequals}
 
 \func{bool}{operator $!=$}{\param{const wxFont\& }{font}}
 

-Inequality operator. Two fonts are not equal if they contain pointers
-to different underlying font data. It does not compare each attribute.
+Inequality operator.
+See \helpref{reference-counted object comparison}{refcountequality} for more info.