X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d84afea9d1ec41ee4e2ebb3bf6b87926cf5f04d1..4e15d1caa03346c126015019c1fdf093033ef40b:/src/gtk/font.cpp?ds=sidebyside diff --git a/src/gtk/font.cpp b/src/gtk/font.cpp index 79921f481a..f2e48c3ca8 100644 --- a/src/gtk/font.cpp +++ b/src/gtk/font.cpp @@ -1,9 +1,9 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: gtk/font.cpp -// Purpose: +// Name: src/gtk/font.cpp +// Purpose: wxFont for wxGTK // Author: Robert Roebling // Id: $Id$ -// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem +// Copyright: (c) 1998 Robert Roebling and Julian Smart // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// @@ -15,23 +15,22 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ - #pragma implementation "font.h" -#endif +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" #include "wx/font.h" + +#ifndef WX_PRECOMP + #include "wx/log.h" + #include "wx/utils.h" + #include "wx/settings.h" + #include "wx/gdicmn.h" +#endif + #include "wx/fontutil.h" -#include "wx/cmndata.h" -#include "wx/utils.h" -#include "wx/log.h" -#include "wx/gdicmn.h" #include "wx/tokenzr.h" -#include "wx/settings.h" - -#include #include "wx/gtk/private.h" -#include // ---------------------------------------------------------------------------- // constants @@ -40,277 +39,144 @@ // the default size (in points) for the fonts static const int wxDEFAULT_FONT_SIZE = 12; -// ---------------------------------------------------------------------------- -// wxScaledFontList -// ---------------------------------------------------------------------------- - -// TODO: replace this with a type safe list or hash!! -class wxScaledFontList : public wxList -{ -public: - wxScaledFontList() : wxList(wxKEY_INTEGER) { } -}; - // ---------------------------------------------------------------------------- // wxFontRefData // ---------------------------------------------------------------------------- -class wxFontRefData : public wxObjectRefData +class wxFontRefData : public wxGDIRefData { public: // from broken down font parameters, also default ctor wxFontRefData(int size = -1, - int family = wxFONTFAMILY_DEFAULT, - int style = wxFONTSTYLE_NORMAL, - int weight = wxFONTWEIGHT_NORMAL, - bool underlined = FALSE, + wxFontFamily family = wxFONTFAMILY_DEFAULT, + wxFontStyle style = wxFONTSTYLE_NORMAL, + wxFontWeight weight = wxFONTWEIGHT_NORMAL, + bool underlined = false, + bool strikethrough = false, const wxString& faceName = wxEmptyString, wxFontEncoding encoding = wxFONTENCODING_DEFAULT); - // from XFLD - wxFontRefData(const wxString& fontname); + wxFontRefData(const wxString& nativeFontInfoString); // copy ctor wxFontRefData( const wxFontRefData& data ); virtual ~wxFontRefData(); - // do we have the native font info? - bool HasNativeFont() const - { - return !m_nativeFontInfo.IsDefault(); - } - // setters: all of them also take care to modify m_nativeFontInfo if we // have it so as to not lose the information not carried by our fields void SetPointSize(int pointSize); - void SetFamily(int family); - void SetStyle(int style); - void SetWeight(int weight); + void SetFamily(wxFontFamily family); + void SetStyle(wxFontStyle style); + void SetWeight(wxFontWeight weight); void SetUnderlined(bool underlined); - void SetFaceName(const wxString& facename); + void SetStrikethrough(bool strikethrough); + bool SetFaceName(const wxString& facename); void SetEncoding(wxFontEncoding encoding); - // debugger helper: shows what the font really is - // - // VZ: I need this as my gdb either shows wildly wrong values or crashes - // when I ask it to "p fontRefData" :-( -#ifdef __WXDEBUG__ - void Dump() const - { - wxPrintf(_T("%s-%s-%s-%d-%d\n"), - m_faceName.c_str(), - m_weight == wxFONTWEIGHT_NORMAL - ? _T("normal") - : m_weight == wxFONTWEIGHT_BOLD - ? _T("bold") - : _T("light"), - m_style == wxFONTSTYLE_NORMAL ? _T("regular") : _T("italic"), - m_pointSize, - m_encoding); - } -#endif // Debug + // and this one also modifies all the other font data fields + void SetNativeFontInfo(const wxNativeFontInfo& info); protected: // common part of all ctors void Init(int pointSize, - int family, - int style, - int weight, + wxFontFamily family, + wxFontStyle style, + wxFontWeight weight, bool underlined, + bool strikethrough, const wxString& faceName, wxFontEncoding encoding); + // set all fields from (already initialized and valid) m_nativeFontInfo + void InitFromNative(); + private: - // the map of font sizes to "GdkFont *" - wxScaledFontList m_scaled_xfonts; - - // the broken down font parameters - int m_pointSize; - int m_family, - m_style, - m_weight; - bool m_underlined; - wxString m_faceName; - wxFontEncoding m_encoding; - - // the native font info, basicly an XFLD + // The native font info: basically a PangoFontDescription, plus + // 'underlined' and 'strikethrough' attributes not supported by Pango. wxNativeFontInfo m_nativeFontInfo; friend class wxFont; }; -// ============================================================================ -// wxFontRefData implementation -// ============================================================================ +#define M_FONTDATA ((wxFontRefData*)m_refData) // ---------------------------------------------------------------------------- -// wxFontRefData creation +// wxFontRefData // ---------------------------------------------------------------------------- void wxFontRefData::Init(int pointSize, - int family, - int style, - int weight, + wxFontFamily family, + wxFontStyle style, + wxFontWeight weight, bool underlined, + bool strikethrough, const wxString& faceName, - wxFontEncoding encoding) + wxFontEncoding WXUNUSED(encoding)) { - m_family = family == wxFONTFAMILY_DEFAULT ? wxFONTFAMILY_SWISS : family; - - m_faceName = faceName; + if (family == wxFONTFAMILY_DEFAULT) + family = wxFONTFAMILY_SWISS; - // we accept both wxDEFAULT and wxNORMAL here - should we? - m_style = style == wxDEFAULT ? wxFONTSTYLE_NORMAL : style; - m_weight = weight == wxDEFAULT ? wxFONTWEIGHT_NORMAL : weight; + // Create native font info + m_nativeFontInfo.description = pango_font_description_new(); - // and here, do we really want to forbid creation of the font of the size - // 90 (the value of wxDEFAULT)?? - m_pointSize = pointSize == wxDEFAULT || - pointSize == -1 ? wxDEFAULT_FONT_SIZE : pointSize; + // And set its values + if (!faceName.empty()) + { + pango_font_description_set_family( m_nativeFontInfo.description, + wxGTK_CONV_SYS(faceName) ); + } + else + { + SetFamily(family); + } - m_underlined = underlined; - m_encoding = encoding; + SetStyle( style == wxDEFAULT ? wxFONTSTYLE_NORMAL : style ); + SetPointSize( (pointSize == wxDEFAULT || pointSize == -1) + ? wxDEFAULT_FONT_SIZE + : pointSize ); + SetWeight( weight == wxDEFAULT ? wxFONTWEIGHT_NORMAL : weight ); + SetUnderlined( underlined ); + SetStrikethrough( strikethrough ); } -wxFontRefData::wxFontRefData( const wxFontRefData& data ) - : wxObjectRefData() +void wxFontRefData::InitFromNative() { - m_pointSize = data.m_pointSize; - m_family = data.m_family; - m_style = data.m_style; - m_weight = data.m_weight; + // Get native info + PangoFontDescription *desc = m_nativeFontInfo.description; - m_underlined = data.m_underlined; - - m_faceName = data.m_faceName; - m_encoding = data.m_encoding; + // Pango sometimes needs to have a size + int pango_size = pango_font_description_get_size( desc ); + if (pango_size == 0) + m_nativeFontInfo.SetPointSize(wxDEFAULT_FONT_SIZE); +} - m_nativeFontInfo = data.m_nativeFontInfo; +wxFontRefData::wxFontRefData( const wxFontRefData& data ) + : wxGDIRefData() +{ + // Forces a copy of the internal data. wxNativeFontInfo should probably + // have a copy ctor and assignment operator to fix this properly but that + // would break binary compatibility... + m_nativeFontInfo.FromString(data.m_nativeFontInfo.ToString()); } -wxFontRefData::wxFontRefData(int size, int family, int style, - int weight, bool underlined, +wxFontRefData::wxFontRefData(int size, wxFontFamily family, wxFontStyle style, + wxFontWeight weight, bool underlined, bool strikethrough, const wxString& faceName, wxFontEncoding encoding) { - Init(size, family, style, weight, underlined, faceName, encoding); + Init(size, family, style, weight, underlined, strikethrough, faceName, encoding); } -wxFontRefData::wxFontRefData(const wxString& fontname) +wxFontRefData::wxFontRefData(const wxString& nativeFontInfoString) { - // remember the X font name - m_nativeFontInfo.SetXFontName(fontname); - - // get the font parameters from the XLFD - // ------------------------------------- + m_nativeFontInfo.FromString( nativeFontInfoString ); - m_faceName = m_nativeFontInfo.GetXFontComponent(wxXLFD_FAMILY); - - m_weight = wxFONTWEIGHT_NORMAL; - - wxString w = m_nativeFontInfo.GetXFontComponent(wxXLFD_WEIGHT).Upper(); - if ( !w.empty() && w != _T('*') ) - { - // the test below catches all of BOLD, EXTRABOLD, DEMIBOLD, ULTRABOLD - // and BLACK - if ( ((w[0u] == _T('B') && (!strcmp(w.c_str() + 1, _T("OLD")) || - !strcmp(w.c_str() + 1, _T("LACK"))))) || - strstr(w.c_str() + 1, _T("BOLD")) ) - { - m_weight = wxFONTWEIGHT_BOLD; - } - else if ( w == _T("LIGHT") || w == _T("THIN") ) - { - m_weight = wxFONTWEIGHT_LIGHT; - } - } - - switch ( wxToupper(*m_nativeFontInfo. - GetXFontComponent(wxXLFD_SLANT).c_str()) ) - { - case _T('I'): // italique - m_style = wxFONTSTYLE_ITALIC; - break; - - case _T('O'): // oblique - m_style = wxFONTSTYLE_SLANT; - break; - - default: - m_style = wxFONTSTYLE_NORMAL; - } - - long ptSize; - if ( m_nativeFontInfo.GetXFontComponent(wxXLFD_POINTSIZE).ToLong(&ptSize) ) - { - // size in XLFD is in 10 point units - m_pointSize = (int)(ptSize / 10); - } - else - { - m_pointSize = wxDEFAULT_FONT_SIZE; - } - - // examine the spacing: if the font is monospaced, assume wxTELETYPE - // family for compatibility with the old code which used it instead of - // IsFixedWidth() - if ( m_nativeFontInfo.GetXFontComponent(wxXLFD_SPACING).Upper() == _T('M') ) - { - m_family = wxFONTFAMILY_TELETYPE; - } - else // not monospaceed - { - // don't even try guessing it, it doesn't work for too many fonts - // anyhow - m_family = wxFONTFAMILY_UNKNOWN; - } - - // X fonts are never underlined... - m_underlined = FALSE; - - // deal with font encoding - wxString - registry = m_nativeFontInfo.GetXFontComponent(wxXLFD_REGISTRY).Upper(), - encoding = m_nativeFontInfo.GetXFontComponent(wxXLFD_ENCODING).Upper(); - - if ( registry == _T("ISO8859") ) - { - int cp; - if ( wxSscanf(encoding, wxT("%d"), &cp) == 1 ) - { - m_encoding = (wxFontEncoding)(wxFONTENCODING_ISO8859_1 + cp - 1); - } - } - else if ( registry == _T("MICROSOFT") ) - { - int cp; - if ( wxSscanf(encoding, wxT("cp125%d"), &cp) == 1 ) - { - m_encoding = (wxFontEncoding)(wxFONTENCODING_CP1250 + cp); - } - } - else if ( registry == _T("KOI8") ) - { - m_encoding = wxFONTENCODING_KOI8; - } - else // unknown encoding - { - // may be give a warning here? - m_encoding = wxFONTENCODING_SYSTEM; - } + InitFromNative(); } wxFontRefData::~wxFontRefData() { - wxNode *node = m_scaled_xfonts.First(); - while (node) - { - GdkFont *font = (GdkFont*)node->Data(); - wxNode *next = node->Next(); - gdk_font_unref( font ); - node = next; - } } // ---------------------------------------------------------------------------- @@ -319,151 +185,127 @@ wxFontRefData::~wxFontRefData() void wxFontRefData::SetPointSize(int pointSize) { - m_pointSize = pointSize; - - if ( HasNativeFont() ) - { - wxString size; - if ( pointSize == -1 ) - size = _T('*'); - else - size.Printf(_T("%d"), 10*pointSize); - - m_nativeFontInfo.SetXFontComponent(wxXLFD_POINTSIZE, size); - } + m_nativeFontInfo.SetPointSize(pointSize); } -void wxFontRefData::SetFamily(int family) -{ - m_family = family; - - // TODO: what are we supposed to do with m_nativeFontInfo here? -} +/* + NOTE: disabled because pango_font_description_set_absolute_size() and + wxDC::GetCharHeight() do not mix well: setting with the former a pixel + size of "30" makes the latter return 36... + Besides, we need to return GetPointSize() a point size value even if + SetPixelSize() was used and this would require further changes + (and use of pango_font_description_get_size_is_absolute in some places). -void wxFontRefData::SetStyle(int style) +bool wxFontRefData::SetPixelSize(const wxSize& pixelSize) { - m_style = style; + wxCHECK_MSG( pixelSize.GetWidth() >= 0 && pixelSize.GetHeight() > 0, false, + "Negative values for the pixel size or zero pixel height are not allowed" ); - if ( HasNativeFont() ) + if (wx_pango_version_check(1,8,0) != NULL || + pixelSize.GetWidth() != 0) { - wxString slant; - switch ( style ) - { - case wxFONTSTYLE_ITALIC: - slant = _T('i'); - break; - - case wxFONTSTYLE_SLANT: - slant = _T('o'); - break; + // NOTE: pango_font_description_set_absolute_size() only sets the font height; + // if the user set the pixel width of the font explicitly or the pango + // library is too old, we cannot proceed + return false; + } - default: - wxFAIL_MSG( _T("unknown font style") ); - // fall through + pango_font_description_set_absolute_size( m_nativeFontInfo.description, + pixelSize.GetHeight() * PANGO_SCALE ); - case wxFONTSTYLE_NORMAL: - slant = _T('r'); - } - - m_nativeFontInfo.SetXFontComponent(wxXLFD_SLANT, slant); - } + return true; } +*/ -void wxFontRefData::SetWeight(int weight) +void wxFontRefData::SetFamily(wxFontFamily family) { - m_weight = weight; - - if ( HasNativeFont() ) - { - wxString boldness; - switch ( weight ) - { - case wxFONTWEIGHT_BOLD: - boldness = _T("bold"); - break; - - case wxFONTWEIGHT_LIGHT: - boldness = _T("light"); - break; - - default: - wxFAIL_MSG( _T("unknown font weight") ); - // fall through + m_nativeFontInfo.SetFamily(family); +} - case wxFONTWEIGHT_NORMAL: - // unspecified - boldness = _T("medium"); - } +void wxFontRefData::SetStyle(wxFontStyle style) +{ + m_nativeFontInfo.SetStyle(style); +} - m_nativeFontInfo.SetXFontComponent(wxXLFD_WEIGHT, boldness); - } +void wxFontRefData::SetWeight(wxFontWeight weight) +{ + m_nativeFontInfo.SetWeight(weight); } void wxFontRefData::SetUnderlined(bool underlined) { - m_underlined = underlined; + m_nativeFontInfo.SetUnderlined(underlined); +} - // the XLFD doesn't have "underlined" field anyhow +void wxFontRefData::SetStrikethrough(bool strikethrough) +{ + m_nativeFontInfo.SetStrikethrough(strikethrough); } -void wxFontRefData::SetFaceName(const wxString& facename) +bool wxFontRefData::SetFaceName(const wxString& facename) { - m_faceName = facename; + return m_nativeFontInfo.SetFaceName(facename); +} - if ( HasNativeFont() ) - { - m_nativeFontInfo.SetXFontComponent(wxXLFD_FAMILY, facename); - } +void wxFontRefData::SetEncoding(wxFontEncoding WXUNUSED(encoding)) +{ + // with GTK+ 2 Pango always uses UTF8 internally, we cannot change it } -void wxFontRefData::SetEncoding(wxFontEncoding encoding) +void wxFontRefData::SetNativeFontInfo(const wxNativeFontInfo& info) { - m_encoding = encoding; + m_nativeFontInfo = info; - if ( HasNativeFont() ) - { - wxNativeEncodingInfo info; - if ( wxGetNativeFontEncoding(encoding, &info) ) - { - m_nativeFontInfo.SetXFontComponent(wxXLFD_REGISTRY, info.xregistry); - m_nativeFontInfo.SetXFontComponent(wxXLFD_ENCODING, info.xencoding); - } - } + // set all the other font parameters from the native font info + InitFromNative(); } -// ============================================================================ -// wxFont implementation -// ============================================================================ - // ---------------------------------------------------------------------------- // wxFont creation // ---------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject) - -void wxFont::Init() +wxFont::wxFont(const wxNativeFontInfo& info) { + Create( info.GetPointSize(), + info.GetFamily(), + info.GetStyle(), + info.GetWeight(), + info.GetUnderlined(), + info.GetFaceName(), + info.GetEncoding() ); + + if ( info.GetStrikethrough() ) + SetStrikethrough(true); } -wxFont::wxFont(const wxNativeFontInfo& info) +wxFont::wxFont(int pointSize, + wxFontFamily family, + int flags, + const wxString& face, + wxFontEncoding encoding) { - Init(); - - Create(info.GetXFontName()); + m_refData = new wxFontRefData(pointSize, family, + GetStyleFromFlags(flags), + GetWeightFromFlags(flags), + GetUnderlinedFromFlags(flags), + GetStrikethroughFromFlags(flags), + face, encoding); } bool wxFont::Create( int pointSize, - int family, - int style, - int weight, + wxFontFamily family, + wxFontStyle style, + wxFontWeight weight, bool underlined, const wxString& face, - wxFontEncoding encoding) + wxFontEncoding encoding ) { + UnRef(); + m_refData = new wxFontRefData(pointSize, family, style, weight, - underlined, face, encoding); + underlined, false, face, encoding); - return TRUE; + return true; } bool wxFont::Create(const wxString& fontname) @@ -473,26 +315,12 @@ bool wxFont::Create(const wxString& fontname) { *this = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT); - return TRUE; + return true; } m_refData = new wxFontRefData(fontname); - return TRUE; -} - -void wxFont::Unshare() -{ - if (!m_refData) - { - m_refData = new wxFontRefData(); - } - else - { - wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData); - UnRef(); - m_refData = ref; - } + return true; } wxFont::~wxFont() @@ -503,80 +331,71 @@ wxFont::~wxFont() // accessors // ---------------------------------------------------------------------------- -// all accessors are just forwarded to wxFontRefData which has everything we -// need - int wxFont::GetPointSize() const { - wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); + wxCHECK_MSG( IsOk(), 0, wxT("invalid font") ); - return M_FONTDATA->m_pointSize; + return M_FONTDATA->m_nativeFontInfo.GetPointSize(); } wxString wxFont::GetFaceName() const { - wxCHECK_MSG( Ok(), wxT(""), wxT("invalid font") ); + wxCHECK_MSG( IsOk(), wxEmptyString, wxT("invalid font") ); - return M_FONTDATA->m_faceName; + return M_FONTDATA->m_nativeFontInfo.GetFaceName(); } -int wxFont::GetFamily() const +wxFontFamily wxFont::DoGetFamily() const { - wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); - - return M_FONTDATA->m_family; + return M_FONTDATA->m_nativeFontInfo.GetFamily(); } -int wxFont::GetStyle() const +wxFontStyle wxFont::GetStyle() const { - wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); + wxCHECK_MSG( IsOk(), wxFONTSTYLE_MAX, wxT("invalid font") ); - return M_FONTDATA->m_style; + return M_FONTDATA->m_nativeFontInfo.GetStyle(); } -int wxFont::GetWeight() const +wxFontWeight wxFont::GetWeight() const { - wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); + wxCHECK_MSG( IsOk(), wxFONTWEIGHT_MAX, wxT("invalid font") ); - return M_FONTDATA->m_weight; + return M_FONTDATA->m_nativeFontInfo.GetWeight(); } bool wxFont::GetUnderlined() const { - wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") ); + wxCHECK_MSG( IsOk(), false, wxT("invalid font") ); - return M_FONTDATA->m_underlined; + return M_FONTDATA->m_nativeFontInfo.GetUnderlined(); } -wxFontEncoding wxFont::GetEncoding() const +bool wxFont::GetStrikethrough() const { - wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") ); + wxCHECK_MSG( IsOk(), false, wxT("invalid font") ); - return M_FONTDATA->m_encoding; + return M_FONTDATA->m_nativeFontInfo.GetStrikethrough(); } -wxNativeFontInfo *wxFont::GetNativeFontInfo() const +wxFontEncoding wxFont::GetEncoding() const { - wxCHECK_MSG( Ok(), (wxNativeFontInfo *)NULL, wxT("invalid font") ); - - if ( M_FONTDATA->m_nativeFontInfo.GetXFontName().empty() ) - GetInternalFont(); + wxCHECK_MSG( IsOk(), wxFONTENCODING_SYSTEM, wxT("invalid font") ); - return new wxNativeFontInfo(M_FONTDATA->m_nativeFontInfo); + return wxFONTENCODING_UTF8; + // Pango always uses UTF8... see also SetEncoding() } -bool wxFont::IsFixedWidth() const +const wxNativeFontInfo *wxFont::GetNativeFontInfo() const { - wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") ); + wxCHECK_MSG( IsOk(), NULL, wxT("invalid font") ); - if ( M_FONTDATA->HasNativeFont() ) - { - // the monospace fonts are supposed to have "M" in the spacing field - wxString spacing = M_FONTDATA-> - m_nativeFontInfo.GetXFontComponent(wxXLFD_SPACING); + return &(M_FONTDATA->m_nativeFontInfo); +} - return spacing.Upper() == _T('M'); - } +bool wxFont::IsFixedWidth() const +{ + wxCHECK_MSG( IsOk(), false, wxT("invalid font") ); return wxFontBase::IsFixedWidth(); } @@ -587,152 +406,137 @@ bool wxFont::IsFixedWidth() const void wxFont::SetPointSize(int pointSize) { - Unshare(); + AllocExclusive(); M_FONTDATA->SetPointSize(pointSize); } -void wxFont::SetFamily(int family) +void wxFont::SetFamily(wxFontFamily family) { - Unshare(); + AllocExclusive(); M_FONTDATA->SetFamily(family); } -void wxFont::SetStyle(int style) +void wxFont::SetStyle(wxFontStyle style) { - Unshare(); + AllocExclusive(); M_FONTDATA->SetStyle(style); } -void wxFont::SetWeight(int weight) +void wxFont::SetWeight(wxFontWeight weight) { - Unshare(); + AllocExclusive(); M_FONTDATA->SetWeight(weight); } -void wxFont::SetFaceName(const wxString& faceName) +bool wxFont::SetFaceName(const wxString& faceName) { - Unshare(); + AllocExclusive(); - M_FONTDATA->SetFaceName(faceName); + return M_FONTDATA->SetFaceName(faceName) && + wxFontBase::SetFaceName(faceName); } void wxFont::SetUnderlined(bool underlined) { - Unshare(); + AllocExclusive(); M_FONTDATA->SetUnderlined(underlined); } -void wxFont::SetEncoding(wxFontEncoding encoding) +void wxFont::SetStrikethrough(bool strikethrough) { - Unshare(); + AllocExclusive(); - M_FONTDATA->SetEncoding(encoding); + M_FONTDATA->SetStrikethrough(strikethrough); } -void wxFont::SetNativeFontInfo(const wxNativeFontInfo& info) +void wxFont::SetEncoding(wxFontEncoding encoding) { - Unshare(); + AllocExclusive(); - M_FONTDATA->m_nativeFontInfo = info; + M_FONTDATA->SetEncoding(encoding); } -// ---------------------------------------------------------------------------- -// get internal representation of font -// ---------------------------------------------------------------------------- +void wxFont::DoSetNativeFontInfo( const wxNativeFontInfo& info ) +{ + AllocExclusive(); -static GdkFont *g_systemDefaultGuiFont = (GdkFont*) NULL; + M_FONTDATA->SetNativeFontInfo( info ); +} -// this is also used from tbargtk.cpp and tooltip.cpp, hence extern -extern GdkFont *GtkGetDefaultGuiFont() +wxGDIRefData* wxFont::CreateGDIRefData() const { - if (!g_systemDefaultGuiFont) - { - GtkWidget *widget = gtk_button_new(); - GtkStyle *def = gtk_rc_get_style( widget ); - if (def) - { - g_systemDefaultGuiFont = gdk_font_ref( GET_STYLE_FONT(def) ); - } - else - { - def = gtk_widget_get_default_style(); - if (def) - g_systemDefaultGuiFont = gdk_font_ref( GET_STYLE_FONT(def) ); - } - gtk_widget_destroy( widget ); - } - else - { - // already have it, but ref it once more before returning - gdk_font_ref(g_systemDefaultGuiFont); - } - - return g_systemDefaultGuiFont; + return new wxFontRefData; } -GdkFont *wxFont::GetInternalFont( float scale ) const +wxGDIRefData* wxFont::CloneGDIRefData(const wxGDIRefData* data) const { - GdkFont *font = (GdkFont *) NULL; + return new wxFontRefData(*static_cast(data)); +} - wxCHECK_MSG( Ok(), font, wxT("invalid font") ) +bool wxFont::GTKSetPangoAttrs(PangoLayout* layout) const +{ + if (!IsOk() || !(GetUnderlined() || GetStrikethrough())) + return false; - long int_scale = long(scale * 100.0 + 0.5); /* key for fontlist */ - int point_scale = (int)((M_FONTDATA->m_pointSize * 10 * int_scale) / 100); + PangoAttrList* attrs = pango_attr_list_new(); + PangoAttribute* a; - wxNode *node = M_FONTDATA->m_scaled_xfonts.Find(int_scale); - if (node) + if (wx_pango_version_check(1,16,0)) { - font = (GdkFont*)node->Data(); - } - else // we don't have this font in this size yet - { - if (*this == wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT)) + // a PangoLayout which has leading/trailing spaces with underlined font + // is not correctly drawn by this pango version: Pango won't underline the spaces. + // This can be a problem; e.g. wxHTML rendering of underlined text relies on + // this behaviour. To workaround this problem, we use a special hack here + // suggested by pango maintainer Behdad Esfahbod: we prepend and append two + // empty space characters and give them a dummy colour attribute. + // This will force Pango to underline the leading/trailing spaces, too. + + const char* text = pango_layout_get_text(layout); + const size_t n = strlen(text); + if ((n > 0 && text[0] == ' ') || (n > 1 && text[n - 1] == ' ')) { - font = GtkGetDefaultGuiFont(); - } - - if ( !font ) - { - // do we have the XLFD? - if ( M_FONTDATA->HasNativeFont() ) - { - font = wxLoadFont(M_FONTDATA->m_nativeFontInfo.GetXFontName()); - } - - // no XLFD of no exact match - try the approximate one now - if ( !font ) - { - wxString xfontname; - font = wxLoadQueryNearestFont( point_scale, - M_FONTDATA->m_family, - M_FONTDATA->m_style, - M_FONTDATA->m_weight, - M_FONTDATA->m_underlined, - M_FONTDATA->m_faceName, - M_FONTDATA->m_encoding, - &xfontname); - if ( font ) - { - M_FONTDATA->m_nativeFontInfo.SetXFontName(xfontname); - } - } - } - - if ( font ) - { - M_FONTDATA->m_scaled_xfonts.Append( int_scale, (wxObject*)font ); + wxCharBuffer buf(n + 6); + // copy the leading U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format + memcpy(buf.data(), "\342\200\214", 3); + // copy the user string + memcpy(buf.data() + 3, text, n); + // copy the trailing U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format + memcpy(buf.data() + 3 + n, "\342\200\214", 3); + + pango_layout_set_text(layout, buf, n + 6); + + // Add dummy attributes (use colour as it's invisible anyhow for 0 + // width spaces) to ensure that the spaces in the beginning/end of the + // string are underlined too. + a = pango_attr_foreground_new(0x0057, 0x52A9, 0xD614); + a->start_index = 0; + a->end_index = 3; + pango_attr_list_insert(attrs, a); + + a = pango_attr_foreground_new(0x0057, 0x52A9, 0xD614); + a->start_index = n + 3; + a->end_index = n + 6; + pango_attr_list_insert(attrs, a); } } + if (GetUnderlined()) + { + a = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE); + pango_attr_list_insert(attrs, a); + } + if (GetStrikethrough()) + { + a = pango_attr_strikethrough_new(true); + pango_attr_list_insert(attrs, a); + } - // it's quite useless to make it a wxCHECK because we're going to crash - // anyhow... - wxASSERT_MSG( font, wxT("could not load any font?") ); + pango_layout_set_attributes(layout, attrs); + pango_attr_list_unref(attrs); - return font; + return true; } -