X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/dccb75b60dfdca505edf8bb9512979501277c142..66c2bf7b1d9326fb650acfaae22ec50528cfbf7c:/include/wx/font.h diff --git a/include/wx/font.h b/include/wx/font.h index 262bce29f5..10a6f0e5d7 100644 --- a/include/wx/font.h +++ b/include/wx/font.h @@ -4,18 +4,13 @@ // Author: Vadim Zeitlin // Modified by: // Created: 20.09.99 -// RCS-ID: $Id$ -// Copyright: (c) wxWindows team -// Licence: wxWindows license +// Copyright: (c) wxWidgets team +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_FONT_H_BASE_ #define _WX_FONT_H_BASE_ -#ifdef __GNUG__ - #pragma interface "fontbase.h" -#endif - // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- @@ -23,20 +18,22 @@ #include "wx/defs.h" // for wxDEFAULT &c #include "wx/fontenc.h" // the font encoding constants #include "wx/gdiobj.h" // the base class +#include "wx/gdicmn.h" // for wxGDIObjListBase // ---------------------------------------------------------------------------- // forward declarations // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxFontData; -class WXDLLEXPORT wxFontBase; -class WXDLLEXPORT wxFont; +class WXDLLIMPEXP_FWD_CORE wxFont; // ---------------------------------------------------------------------------- // font constants // ---------------------------------------------------------------------------- -// standard font families +// standard font families: these may be used only for the font creation, it +// doesn't make sense to query an existing font for its font family as, +// especially if the font had been created from a native font description, it +// may be unknown enum wxFontFamily { wxFONTFAMILY_DEFAULT = wxDEFAULT, @@ -46,7 +43,8 @@ enum wxFontFamily wxFONTFAMILY_SWISS = wxSWISS, wxFONTFAMILY_MODERN = wxMODERN, wxFONTFAMILY_TELETYPE = wxTELETYPE, - wxFONTFAMILY_MAX + wxFONTFAMILY_MAX, + wxFONTFAMILY_UNKNOWN = wxFONTFAMILY_MAX }; // font styles @@ -67,65 +65,346 @@ enum wxFontWeight wxFONTWEIGHT_MAX }; +// Symbolic font sizes as defined in CSS specification. +enum wxFontSymbolicSize +{ + wxFONTSIZE_XX_SMALL = -3, + wxFONTSIZE_X_SMALL, + wxFONTSIZE_SMALL, + wxFONTSIZE_MEDIUM, + wxFONTSIZE_LARGE, + wxFONTSIZE_X_LARGE, + wxFONTSIZE_XX_LARGE +}; + +// the font flag bits for the new font ctor accepting one combined flags word +enum wxFontFlag +{ + // no special flags: font with default weight/slant/anti-aliasing + wxFONTFLAG_DEFAULT = 0, + + // slant flags (default: no slant) + wxFONTFLAG_ITALIC = 1 << 0, + wxFONTFLAG_SLANT = 1 << 1, + + // weight flags (default: medium) + wxFONTFLAG_LIGHT = 1 << 2, + wxFONTFLAG_BOLD = 1 << 3, + + // anti-aliasing flag: force on or off (default: the current system default) + wxFONTFLAG_ANTIALIASED = 1 << 4, + wxFONTFLAG_NOT_ANTIALIASED = 1 << 5, + + // underlined/strikethrough flags (default: no lines) + wxFONTFLAG_UNDERLINED = 1 << 6, + wxFONTFLAG_STRIKETHROUGH = 1 << 7, + + // the mask of all currently used flags + wxFONTFLAG_MASK = wxFONTFLAG_ITALIC | + wxFONTFLAG_SLANT | + wxFONTFLAG_LIGHT | + wxFONTFLAG_BOLD | + wxFONTFLAG_ANTIALIASED | + wxFONTFLAG_NOT_ANTIALIASED | + wxFONTFLAG_UNDERLINED | + wxFONTFLAG_STRIKETHROUGH +}; + +// ---------------------------------------------------------------------------- +// wxFontInfo describes a wxFont +// ---------------------------------------------------------------------------- + +class wxFontInfo +{ +public: + // Default ctor uses the default font size appropriate for the current + // platform. + wxFontInfo() + { InitPointSize(-1); } + + // These ctors specify the font size, either in points or in pixels. + wxEXPLICIT wxFontInfo(int pointSize) + { InitPointSize(pointSize); } + wxEXPLICIT wxFontInfo(const wxSize& pixelSize) : m_pixelSize(pixelSize) + { Init(); } + + // Setters for the various attributes. All of them return the object itself + // so that the calls to them could be chained. + wxFontInfo& Family(wxFontFamily family) + { m_family = family; return *this; } + wxFontInfo& FaceName(const wxString& faceName) + { m_faceName = faceName; return *this; } + + wxFontInfo& Bold(bool bold = true) + { SetFlag(wxFONTFLAG_BOLD, bold); return *this; } + wxFontInfo& Light(bool light = true) + { SetFlag(wxFONTFLAG_LIGHT, light); return *this; } + + wxFontInfo& Italic(bool italic = true) + { SetFlag(wxFONTFLAG_ITALIC, italic); return *this; } + wxFontInfo& Slant(bool slant = true) + { SetFlag(wxFONTFLAG_SLANT, slant); return *this; } + + wxFontInfo& AntiAliased(bool antiAliased = true) + { SetFlag(wxFONTFLAG_ANTIALIASED, antiAliased); return *this; } + wxFontInfo& Underlined(bool underlined = true) + { SetFlag(wxFONTFLAG_UNDERLINED, underlined); return *this; } + wxFontInfo& Strikethrough(bool strikethrough = true) + { SetFlag(wxFONTFLAG_STRIKETHROUGH, strikethrough); return *this; } + + wxFontInfo& Encoding(wxFontEncoding encoding) + { m_encoding = encoding; return *this; } + + + // Set all flags at once. + wxFontInfo& AllFlags(int flags) + { m_flags = flags; return *this; } + + + // Accessors are mostly meant to be used by wxFont itself to extract the + // various pieces of the font description. + + bool IsUsingSizeInPixels() const { return m_pixelSize != wxDefaultSize; } + int GetPointSize() const { return m_pointSize; } + wxSize GetPixelSize() const { return m_pixelSize; } + wxFontFamily GetFamily() const { return m_family; } + const wxString& GetFaceName() const { return m_faceName; } + + wxFontStyle GetStyle() const + { + return m_flags & wxFONTFLAG_ITALIC + ? wxFONTSTYLE_ITALIC + : m_flags & wxFONTFLAG_SLANT + ? wxFONTSTYLE_SLANT + : wxFONTSTYLE_NORMAL; + } + + wxFontWeight GetWeight() const + { + return m_flags & wxFONTFLAG_LIGHT + ? wxFONTWEIGHT_LIGHT + : m_flags & wxFONTFLAG_BOLD + ? wxFONTWEIGHT_BOLD + : wxFONTWEIGHT_NORMAL; + } + + bool IsAntiAliased() const + { + return (m_flags & wxFONTFLAG_ANTIALIASED) != 0; + } + + bool IsUnderlined() const + { + return (m_flags & wxFONTFLAG_UNDERLINED) != 0; + } + + bool IsStrikethrough() const + { + return (m_flags & wxFONTFLAG_STRIKETHROUGH) != 0; + } + + wxFontEncoding GetEncoding() const { return m_encoding; } + + + // Default copy ctor, assignment operator and dtor are OK. + +private: + // Common part of all ctor, initializing everything except the size (which + // is initialized by the ctors themselves). + void Init() + { + m_family = wxFONTFAMILY_DEFAULT; + m_flags = wxFONTFLAG_DEFAULT; + m_encoding = wxFONTENCODING_DEFAULT; + } + + void InitPointSize(int pointSize) + { + Init(); + + m_pointSize = pointSize; + m_pixelSize = wxDefaultSize; + } + + // Turn on or off the given bit in m_flags depending on the value of the + // boolean argument. + void SetFlag(int flag, bool on) + { + if ( on ) + m_flags |= flag; + else + m_flags &= ~flag; + } + + // The size information: if m_pixelSize is valid (!= wxDefaultSize), then + // it is used. Otherwise m_pointSize is used, taking into account that if + // it is == -1, it means that the platform dependent font size should be + // used. + int m_pointSize; + wxSize m_pixelSize; + + wxFontFamily m_family; + wxString m_faceName; + int m_flags; + wxFontEncoding m_encoding; +}; + // ---------------------------------------------------------------------------- // wxFontBase represents a font object // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxFontRefData; -struct WXDLLEXPORT wxNativeFontInfo; +class WXDLLIMPEXP_FWD_CORE wxNativeFontInfo; -class WXDLLEXPORT wxFontBase : public wxGDIObject +class WXDLLIMPEXP_CORE wxFontBase : public wxGDIObject { public: + /* + derived classes should provide the following ctors: + + wxFont(); + wxFont(const wxFontInfo& info); + wxFont(const wxString& nativeFontInfoString); + wxFont(const wxNativeFontInfo& info); + wxFont(int size, + wxFontFamily family, + wxFontStyle style, + wxFontWeight weight, + bool underlined = false, + const wxString& face = wxEmptyString, + wxFontEncoding encoding = wxFONTENCODING_DEFAULT); + wxFont(const wxSize& pixelSize, + wxFontFamily family, + wxFontStyle style, + wxFontWeight weight, + bool underlined = false, + const wxString& face = wxEmptyString, + wxFontEncoding encoding = wxFONTENCODING_DEFAULT); + */ + // creator function -#ifdef __DARWIN__ - virtual ~wxFontBase() { } -#endif + virtual ~wxFontBase(); + +#if FUTURE_WXWIN_COMPATIBILITY_3_0 // from the font components static wxFont *New( int pointSize, // size of the font in points int family, // see wxFontFamily enum int style, // see wxFontStyle enum int weight, // see wxFontWeight enum - bool underlined = FALSE, // not underlined by default + bool underlined = false, // not underlined by default + const wxString& face = wxEmptyString, // facename + wxFontEncoding encoding = wxFONTENCODING_DEFAULT) // ISO8859-X, ... + { return New(pointSize, (wxFontFamily)family, (wxFontStyle)style, + (wxFontWeight)weight, underlined, face, encoding); } + + // from the font components + static wxFont *New( + const wxSize& pixelSize, // size of the font in pixels + int family, // see wxFontFamily enum + int style, // see wxFontStyle enum + int weight, // see wxFontWeight enum + bool underlined = false, // not underlined by default + const wxString& face = wxEmptyString, // facename + wxFontEncoding encoding = wxFONTENCODING_DEFAULT) // ISO8859-X, ... + { return New(pixelSize, (wxFontFamily)family, (wxFontStyle)style, + (wxFontWeight)weight, underlined, face, encoding); } +#endif + + // from the font components + static wxFont *New( + int pointSize, // size of the font in points + wxFontFamily family, // see wxFontFamily enum + wxFontStyle style, // see wxFontStyle enum + wxFontWeight weight, // see wxFontWeight enum + bool underlined = false, // not underlined by default + const wxString& face = wxEmptyString, // facename + wxFontEncoding encoding = wxFONTENCODING_DEFAULT); // ISO8859-X, ... + + // from the font components + static wxFont *New( + const wxSize& pixelSize, // size of the font in pixels + wxFontFamily family, // see wxFontFamily enum + wxFontStyle style, // see wxFontStyle enum + wxFontWeight weight, // see wxFontWeight enum + bool underlined = false, // not underlined by default const wxString& face = wxEmptyString, // facename wxFontEncoding encoding = wxFONTENCODING_DEFAULT); // ISO8859-X, ... + // from the font components but using the font flags instead of separate + // parameters for each flag + static wxFont *New(int pointSize, + wxFontFamily family, + int flags = wxFONTFLAG_DEFAULT, + const wxString& face = wxEmptyString, + wxFontEncoding encoding = wxFONTENCODING_DEFAULT); + + + // from the font components but using the font flags instead of separate + // parameters for each flag + static wxFont *New(const wxSize& pixelSize, + wxFontFamily family, + int flags = wxFONTFLAG_DEFAULT, + const wxString& face = wxEmptyString, + wxFontEncoding encoding = wxFONTENCODING_DEFAULT); + // from the (opaque) native font description object static wxFont *New(const wxNativeFontInfo& nativeFontDesc); // from the string representation of wxNativeFontInfo static wxFont *New(const wxString& strNativeFontDesc); - // was the font successfully created? - bool Ok() const { return m_refData != NULL; } - // comparison - bool operator == (const wxFont& font) const; - bool operator != (const wxFont& font) const; + bool operator==(const wxFont& font) const; + bool operator!=(const wxFont& font) const { return !(*this == font); } // accessors: get the font characteristics virtual int GetPointSize() const = 0; - virtual int GetFamily() const = 0; - virtual int GetStyle() const = 0; - virtual int GetWeight() const = 0; + virtual wxSize GetPixelSize() const; + virtual bool IsUsingSizeInPixels() const; + wxFontFamily GetFamily() const; + virtual wxFontStyle GetStyle() const = 0; + virtual wxFontWeight GetWeight() const = 0; virtual bool GetUnderlined() const = 0; + virtual bool GetStrikethrough() const { return false; } virtual wxString GetFaceName() const = 0; virtual wxFontEncoding GetEncoding() const = 0; - virtual wxNativeFontInfo *GetNativeFontInfo() const; + virtual const wxNativeFontInfo *GetNativeFontInfo() const = 0; + + virtual bool IsFixedWidth() const; + wxString GetNativeFontInfoDesc() const; + wxString GetNativeFontInfoUserDesc() const; // change the font characteristics virtual void SetPointSize( int pointSize ) = 0; - virtual void SetFamily( int family ) = 0; - virtual void SetStyle( int style ) = 0; - virtual void SetWeight( int weight ) = 0; - virtual void SetFaceName( const wxString& faceName ) = 0; + virtual void SetPixelSize( const wxSize& pixelSize ); + virtual void SetFamily( wxFontFamily family ) = 0; + virtual void SetStyle( wxFontStyle style ) = 0; + virtual void SetWeight( wxFontWeight weight ) = 0; + virtual void SetUnderlined( bool underlined ) = 0; + virtual void SetStrikethrough( bool WXUNUSED(strikethrough) ) {} virtual void SetEncoding(wxFontEncoding encoding) = 0; - virtual void SetNativeFontInfo(const wxNativeFontInfo& info); - void SetNativeFontInfo(const wxString& info); + virtual bool SetFaceName( const wxString& faceName ); + void SetNativeFontInfo(const wxNativeFontInfo& info) + { DoSetNativeFontInfo(info); } + + bool SetNativeFontInfo(const wxString& info); + bool SetNativeFontInfoUserDesc(const wxString& info); + + // Symbolic font sizes support: set the font size to "large" or "very + // small" either absolutely (i.e. compared to the default font size) or + // relatively to the given font size. + void SetSymbolicSize(wxFontSymbolicSize size); + void SetSymbolicSizeRelativeTo(wxFontSymbolicSize size, int base) + { + SetPointSize(AdjustToSymbolicSize(size, base)); + } + + // Adjust the base size in points according to symbolic size. + static int AdjustToSymbolicSize(wxFontSymbolicSize size, int base); + // translate the fonts into human-readable string (i.e. GetStyleString() // will return "wxITALIC" for an italic font, ...) @@ -135,46 +414,185 @@ public: // the default encoding is used for creating all fonts with default // encoding parameter - static wxFontEncoding GetDefaultEncoding() - { return ms_encodingDefault; } - static void SetDefaultEncoding(wxFontEncoding encoding) - { ms_encodingDefault = encoding; } + static wxFontEncoding GetDefaultEncoding() { return ms_encodingDefault; } + static void SetDefaultEncoding(wxFontEncoding encoding); + + // this doesn't do anything and is kept for compatibility only +#if WXWIN_COMPATIBILITY_2_8 + wxDEPRECATED_INLINE(void SetNoAntiAliasing(bool no = true), wxUnusedVar(no);); + wxDEPRECATED_INLINE(bool GetNoAntiAliasing() const, return false;) +#endif // WXWIN_COMPATIBILITY_2_8 protected: - // get the internal data - wxFontRefData *GetFontData() const - { return (wxFontRefData *)m_refData; } + // the function called by both overloads of SetNativeFontInfo() + virtual void DoSetNativeFontInfo(const wxNativeFontInfo& info); + + // The function called by public GetFamily(): it can return + // wxFONTFAMILY_UNKNOWN unlike the public method (see comment there). + virtual wxFontFamily DoGetFamily() const = 0; + + + // Helper functions to recover wxFONTSTYLE/wxFONTWEIGHT and underlined flag + // values from flags containing a combination of wxFONTFLAG_XXX. + static wxFontStyle GetStyleFromFlags(int flags) + { + return flags & wxFONTFLAG_ITALIC + ? wxFONTSTYLE_ITALIC + : flags & wxFONTFLAG_SLANT + ? wxFONTSTYLE_SLANT + : wxFONTSTYLE_NORMAL; + } + + static wxFontWeight GetWeightFromFlags(int flags) + { + return flags & wxFONTFLAG_LIGHT + ? wxFONTWEIGHT_LIGHT + : flags & wxFONTFLAG_BOLD + ? wxFONTWEIGHT_BOLD + : wxFONTWEIGHT_NORMAL; + } + + static bool GetUnderlinedFromFlags(int flags) + { + return (flags & wxFONTFLAG_UNDERLINED) != 0; + } + + static bool GetStrikethroughFromFlags(int flags) + { + return (flags & wxFONTFLAG_STRIKETHROUGH) != 0; + } private: // the currently default encoding: by default, it's the default system // encoding, but may be changed by the application using // SetDefaultEncoding() to make all subsequent fonts created without - // specifing encoding parameter using this encoding + // specifying encoding parameter using this encoding static wxFontEncoding ms_encodingDefault; }; +// wxFontBase <-> wxString utilities, used by wxConfig +WXDLLIMPEXP_CORE wxString wxToString(const wxFontBase& font); +WXDLLIMPEXP_CORE bool wxFromString(const wxString& str, wxFontBase* font); + + +#if FUTURE_WXWIN_COMPATIBILITY_3_0 +#define wxDECLARE_FONT_COMPAT_SETTER \ + wxDEPRECATED_FUTURE( void SetFamily(int family) ) \ + { SetFamily((wxFontFamily)family); } \ + wxDEPRECATED_FUTURE( void SetStyle(int style) ) \ + { SetStyle((wxFontStyle)style); } \ + wxDEPRECATED_FUTURE( void SetWeight(int weight) ) \ + { SetWeight((wxFontWeight)weight); } \ + wxDEPRECATED_FUTURE( void SetFamily(wxDeprecatedGUIConstants family) ) \ + { SetFamily((wxFontFamily)family); } \ + wxDEPRECATED_FUTURE( void SetStyle(wxDeprecatedGUIConstants style) ) \ + { SetStyle((wxFontStyle)style); } \ + wxDEPRECATED_FUTURE( void SetWeight(wxDeprecatedGUIConstants weight) ) \ + { SetWeight((wxFontWeight)weight); } +#else +#define wxDECLARE_FONT_COMPAT_SETTER /*empty*/ +#endif + +// this macro must be used in all derived wxFont classes declarations +#define wxDECLARE_COMMON_FONT_METHODS() \ + wxDECLARE_FONT_COMPAT_SETTER \ + \ + /* functions for modifying font in place */ \ + wxFont& MakeBold(); \ + wxFont& MakeItalic(); \ + wxFont& MakeUnderlined(); \ + wxFont& MakeStrikethrough(); \ + wxFont& MakeLarger() { return Scale(1.2f); } \ + wxFont& MakeSmaller() { return Scale(1/1.2f); } \ + wxFont& Scale(float x); \ + /* functions for creating fonts based on this one */ \ + wxFont Bold() const; \ + wxFont Italic() const; \ + wxFont Underlined() const; \ + wxFont Strikethrough() const; \ + wxFont Larger() const { return Scaled(1.2f); } \ + wxFont Smaller() const { return Scaled(1/1.2f); } \ + wxFont Scaled(float x) const + // include the real class declaration #if defined(__WXMSW__) #include "wx/msw/font.h" #elif defined(__WXMOTIF__) #include "wx/motif/font.h" -#elif defined(__WXGTK__) +#elif defined(__WXGTK20__) #include "wx/gtk/font.h" -#elif defined(__WXMGL__) - #include "wx/mgl/font.h" +#elif defined(__WXGTK__) + #include "wx/gtk1/font.h" +#elif defined(__WXX11__) + #include "wx/x11/font.h" +#elif defined(__WXDFB__) + #include "wx/dfb/font.h" #elif defined(__WXMAC__) - #include "wx/mac/font.h" + #include "wx/osx/font.h" +#elif defined(__WXCOCOA__) + #include "wx/cocoa/font.h" #elif defined(__WXPM__) #include "wx/os2/font.h" -#elif defined(__WXSTUBS__) - #include "wx/stubs/font.h" #endif -// ---------------------------------------------------------------------------- -// macros -// ---------------------------------------------------------------------------- +class WXDLLIMPEXP_CORE wxFontList: public wxGDIObjListBase +{ +public: + wxFont *FindOrCreateFont(int pointSize, + wxFontFamily family, + wxFontStyle style, + wxFontWeight weight, + bool underline = false, + const wxString& face = wxEmptyString, + wxFontEncoding encoding = wxFONTENCODING_DEFAULT); + +#if FUTURE_WXWIN_COMPATIBILITY_3_0 + wxFont *FindOrCreateFont(int pointSize, int family, int style, int weight, + bool underline = false, + const wxString& face = wxEmptyString, + wxFontEncoding encoding = wxFONTENCODING_DEFAULT) + { return FindOrCreateFont(pointSize, (wxFontFamily)family, (wxFontStyle)style, + (wxFontWeight)weight, underline, face, encoding); } +#endif + +#if WXWIN_COMPATIBILITY_2_6 + wxDEPRECATED( void AddFont(wxFont*) ); + wxDEPRECATED( void RemoveFont(wxFont*) ); +#endif +}; + +extern WXDLLIMPEXP_DATA_CORE(wxFontList*) wxTheFontList; + + +// provide comparison operators to allow code such as +// +// if ( font.GetStyle() == wxFONTSTYLE_SLANT ) +// +// to compile without warnings which it would otherwise provoke from some +// compilers as it compares elements of different enums +#if FUTURE_WXWIN_COMPATIBILITY_3_0 + +// Unfortunately some compilers have ambiguity issues when enum comparisons are +// overloaded so we have to disable the overloads in this case, see +// wxCOMPILER_NO_OVERLOAD_ON_ENUM definition in wx/platform.h for more details. +#ifndef wxCOMPILER_NO_OVERLOAD_ON_ENUM + +inline bool operator==(wxFontFamily s, wxDeprecatedGUIConstants t) +{ return static_cast(s) == static_cast(t); } +inline bool operator!=(wxFontFamily s, wxDeprecatedGUIConstants t) +{ return !(s == t); } +inline bool operator==(wxFontStyle s, wxDeprecatedGUIConstants t) +{ return static_cast(s) == static_cast(t); } +inline bool operator!=(wxFontStyle s, wxDeprecatedGUIConstants t) +{ return !(s == t); } +inline bool operator==(wxFontWeight s, wxDeprecatedGUIConstants t) +{ return static_cast(s) == static_cast(t); } +inline bool operator!=(wxFontWeight s, wxDeprecatedGUIConstants t) +{ return !(s == t); } + +#endif // // wxCOMPILER_NO_OVERLOAD_ON_ENUM -#define M_FONTDATA GetFontData() +#endif // FUTURE_WXWIN_COMPATIBILITY_3_0 #endif // _WX_FONT_H_BASE_