0c5d3e1ccd
2. added and documented wxBITMAP() macros (as wxICON) 3. restructured wxFont class, added support of encoding parameter 4. regenerated makefiles to compile the new fontcmn.cpp file 5. corrected bug with non existing files in document-view history git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3753 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
312 lines
8.7 KiB
TeX
312 lines
8.7 KiB
TeX
\section{\class{wxFont}}\label{wxfont}
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A font is an object which determines the appearance of text. Fonts are
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used for drawing text to a device context, and setting the appearance of
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a window's text.
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\wxheading{Derived from}
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\helpref{wxGDIObject}{wxgdiobject}\\
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\helpref{wxObject}{wxobject}
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\wxheading{Include files}
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<wx/font.h>
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\wxheading{Predefined objects}
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Objects:
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{\bf wxNullFont}
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Pointers:
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{\bf wxNORMAL\_FONT\\
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wxSMALL\_FONT\\
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wxITALIC\_FONT\\
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wxSWISS\_FONT}
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\wxheading{See also}
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\helpref{wxFont overview}{wxfontoverview}, \helpref{wxDC::SetFont}{wxdcsetfont},\rtfsp
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\helpref{wxDC::DrawText}{wxdcdrawtext}, \helpref{wxDC::GetTextExtent}{wxdcgettextextent},\rtfsp
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\helpref{wxFontDialog}{wxfontdialog}
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\latexignore{\rtfignore{\wxheading{Members}}}
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\membersection{wxFont::wxFont}\label{wxfontconstr}
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\func{}{wxFont}{\void}
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Default constructor.
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\func{}{wxFont}{\param{int}{ pointSize}, \param{int}{ family}, \param{int}{ style}, \param{int}{ weight},
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\param{const bool}{ underline = FALSE}, \param{const wxString\& }{faceName = ""},
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\param{wxFontEncoding }{encoding = wxFONTENCODING\_DEFAULT}}
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Creates a font object.
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\wxheading{Parameters}
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\docparam{pointSize}{Size in points.}
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\docparam{family}{Font family, a generic way of referring to fonts without specifying actual facename. One of:
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\twocolwidtha{5cm}
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\begin{twocollist}\itemsep=0pt
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\twocolitem{{\bf wxDEFAULT}}{Chooses a default font.}
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\twocolitem{{\bf wxDECORATIVE}}{A decorative font.}
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\twocolitem{{\bf wxROMAN}}{A formal, serif font.}
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\twocolitem{{\bf wxSCRIPT}}{A handwriting font.}
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\twocolitem{{\bf wxSWISS}}{A sans-serif font.}
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\twocolitem{{\bf wxMODERN}}{A fixed pitch font.}
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\end{twocollist}}
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\docparam{style}{One of {\bf wxNORMAL}, {\bf wxSLANT} and {\bf wxITALIC}.}
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\docparam{weight}{One of {\bf wxNORMAL}, {\bf wxLIGHT} and {\bf wxBOLD}.}
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\docparam{underline}{The value can be TRUE or FALSE. At present this has an effect on Windows only.}
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\docparam{faceName}{An optional string specifying the actual typeface to be used. If the empty string,
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a default typeface will chosen based on the family.}
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\docparam{encoding}{An encoding which may be one of
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\twocolwidtha{5cm}
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\begin{twocollist}\itemsep=0pt
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\twocolitem{{\bf wxFONTENCODING\_SYSTEM}}{Default system encoding.}
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\twocolitem{{\bf wxFONTENCODING\_DEFAULT}}{Default application encoding: this
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is the encoding set by calls to
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\helpref{SetDefaultEncoding}{wxfontsetdefaultencoding} and which may beset to,
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say, KOI8 to create all fonts by default with KOI8 encoding. Initially, the
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default application encoding is the same as default system encoding.}
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\twocolitem{{\bf wxFONTENCODING\_ISO8859\_1...15}}{ISO8859 encodings.}
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\twocolitem{{\bf wxFONTENCODING\_KOI8}}{The standard russian encoding for Internet.}
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\twocolitem{{\bf wxFONTENCODING\_CP1250...1252}}{Windows encodings similar to ISO8859 (but not identical).}
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\end{twocollist}
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If the specified encoding isn't available, no font is created.
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}
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\wxheading{Remarks}
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If the desired font does not exist, the closest match will be chosen.
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Under Windows, only scaleable TrueType fonts are used.
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Underlining only works under Windows at present.
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See also \helpref{wxDC::SetFont}{wxdcsetfont}, \helpref{wxDC::DrawText}{wxdcdrawtext}
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and \helpref{wxDC::GetTextExtent}{wxdcgettextextent}.
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\membersection{wxFont::\destruct{wxFont}}
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\func{}{\destruct{wxFont}}{\void}
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Destructor.
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\wxheading{Remarks}
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The destructor may not delete the underlying font object of the native windowing
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system, since wxBrush uses a reference counting system for efficiency.
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Although all remaining fonts are deleted when the application exits,
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the application should try to clean up all fonts itself. This is because
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wxWindows cannot know if a pointer to the font object is stored in an
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application data structure, and there is a risk of double deletion.
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\membersection{wxFont::GetFaceName}\label{wxfontgetfacename}
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\constfunc{wxString}{GetFaceName}{\void}
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Returns the typeface name associated with the font, or the empty string if there is no
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typeface information.
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\wxheading{See also}
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\helpref{wxFont::SetFaceName}{wxfontsetfacename}
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\membersection{wxFont::GetFamily}\label{wxfontgetfamily}
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\constfunc{int}{GetFamily}{\void}
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Gets the font family. See \helpref{wxFont::wxFont}{wxfontconstr} for a list of valid
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family identifiers.
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\wxheading{See also}
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\helpref{wxFont::SetFamily}{wxfontsetfamily}
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\membersection{wxFont::GetFontId}\label{wxfontgetfontid}
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\constfunc{int}{GetFontId}{\void}
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Returns the font id, if the portable font system is in operation. See \helpref{Font overview}{wxfontoverview} for
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further details.
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\membersection{wxFont::GetPointSize}\label{wxfontgetpointsize}
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\constfunc{int}{GetPointSize}{\void}
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Gets the point size.
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\wxheading{See also}
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\helpref{wxFont::SetPointSize}{wxfontsetpointsize}
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\membersection{wxFont::GetStyle}\label{wxfontgetstyle}
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\constfunc{int}{GetStyle}{\void}
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Gets the font style. See \helpref{wxFont::wxFont}{wxfontconstr} for a list of valid
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styles.
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\wxheading{See also}
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\helpref{wxFont::SetStyle}{wxfontsetstyle}
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\membersection{wxFont::GetUnderlined}\label{wxfontgetunderlined}
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\constfunc{bool}{GetUnderlined}{\void}
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Returns TRUE if the font is underlined, FALSE otherwise.
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\wxheading{See also}
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\helpref{wxFont::SetUnderlined}{wxfontsetunderlined}
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\membersection{wxFont::GetWeight}\label{wxfontgetweight}
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\constfunc{int}{GetWeight}{\void}
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Gets the font weight. See \helpref{wxFont::wxFont}{wxfontconstr} for a list of valid
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weight identifiers.
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\wxheading{See also}
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\helpref{wxFont::SetWeight}{wxfontsetweight}
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\membersection{wxFont::SetFaceName}\label{wxfontsetfacename}
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\func{void}{SetFaceName}{\param{const wxString\& }{faceName}}
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Sets the facename for the font.
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\wxheading{Parameters}
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\docparam{faceName}{A valid facename, which should be on the end-user's system.}
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\wxheading{Remarks}
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To avoid portability problems, don't rely on a specific face, but specify the font family
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instead or as well. A suitable font will be found on the end-user's system. If both the
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family and the facename are specified, wxWindows will first search for the specific face,
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and then for a font belonging to the same family.
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\wxheading{See also}
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\helpref{wxFont::GetFaceName}{wxfontgetfacename}, \helpref{wxFont::SetFamily}{wxfontsetfamily}
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\membersection{wxFont::SetFamily}\label{wxfontsetfamily}
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\func{void}{SetFamily}{\param{int}{ family}}
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Sets the font family.
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\wxheading{Parameters}
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\docparam{family}{One of:
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\twocolwidtha{5cm}
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\begin{twocollist}\itemsep=0pt
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\twocolitem{{\bf wxDEFAULT}}{Chooses a default font.}
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\twocolitem{{\bf wxDECORATIVE}}{A decorative font.}
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\twocolitem{{\bf wxROMAN}}{A formal, serif font.}
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\twocolitem{{\bf wxSCRIPT}}{A handwriting font.}
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\twocolitem{{\bf wxSWISS}}{A sans-serif font.}
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\twocolitem{{\bf wxMODERN}}{A fixed pitch font.}
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\end{twocollist}}
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\wxheading{See also}
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\helpref{wxFont::GetFamily}{wxfontgetfamily}, \helpref{wxFont::SetFaceName}{wxfontsetfacename}
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\membersection{wxFont::SetPointSize}\label{wxfontsetpointsize}
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\func{void}{SetPointSize}{\param{int}{ pointSize}}
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Sets the point size.
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\wxheading{Parameters}
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\docparam{pointSize}{Size in points.}
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\wxheading{See also}
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\helpref{wxFont::GetPointSize}{wxfontgetpointsize}
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\membersection{wxFont::SetStyle}\label{wxfontsetstyle}
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\func{void}{SetStyle}{\param{int}{ style}}
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Sets the font style.
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\wxheading{Parameters}
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\docparam{style}{One of {\bf wxNORMAL}, {\bf wxSLANT} and {\bf wxITALIC}.}
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\wxheading{See also}
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\helpref{wxFont::GetStyle}{wxfontgetstyle}
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\membersection{wxFont::SetUnderlined}\label{wxfontsetunderlined}
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\func{void}{SetUnderlined}{\param{const bool}{ underlined}}
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Sets underlining.
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\wxheading{Parameters}
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\docparam{underlining}{TRUE to underline, FALSE otherwise.}
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\wxheading{See also}
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\helpref{wxFont::GetUnderlined}{wxfontgetunderlined}
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\membersection{wxFont::SetWeight}\label{wxfontsetweight}
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\func{void}{SetWeight}{\param{int}{ weight}}
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Sets the font weight.
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\wxheading{Parameters}
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\docparam{weight}{One of {\bf wxNORMAL}, {\bf wxLIGHT} and {\bf wxBOLD}.}
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\wxheading{See also}
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\helpref{wxFont::GetWeight}{wxfontgetweight}
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\membersection{wxFont::operator $=$}\label{wxfontassignment}
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\func{wxFont\&}{operator $=$}{\param{const wxFont\& }{font}}
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Assignment operator, using reference counting. Returns a reference
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to `this'.
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\membersection{wxFont::operator $==$}\label{wxfontequals}
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\func{bool}{operator $==$}{\param{const wxFont\& }{font}}
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Equality operator. Two fonts are equal if they contain pointers
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to the same underlying font data. It does not compare each attribute,
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so two indefontdently-created fonts using the same parameters will
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fail the test.
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\membersection{wxFont::operator $!=$}\label{wxfontnotequals}
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\func{bool}{operator $!=$}{\param{const wxFont\& }{font}}
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Inequality operator. Two fonts are not equal if they contain pointers
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to different underlying font data. It does not compare each attribute.
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