X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/36f210c81e5f8cdc65b80e57aad0c11bf2d08e63..ff1865910312d960737474a75a77737d5ce94864:/samples/font/font.cpp diff --git a/samples/font/font.cpp b/samples/font/font.cpp index 2873c93ef7..472ac4a4ab 100644 --- a/samples/font/font.cpp +++ b/samples/font/font.cpp @@ -27,6 +27,9 @@ #include #include #include +#include +#include +#include // ---------------------------------------------------------------------------- // private classes @@ -81,6 +84,10 @@ public: // event handlers (these functions should _not_ be virtual) void OnQuit(wxCommandEvent& event); void OnAbout(wxCommandEvent& event); + void OnIncFont(wxCommandEvent& event) { DoResizeFont(+2); } + void OnDecFont(wxCommandEvent& event) { DoResizeFont(-2); } + + void OnViewMsg(wxCommandEvent& event); void OnSelectFont(wxCommandEvent& event); void OnEnumerateFamiliesForEncoding(wxCommandEvent& event); void OnEnumerateFamilies(wxCommandEvent& WXUNUSED(event)) @@ -89,14 +96,22 @@ public: { DoEnumerateFamilies(TRUE); } void OnEnumerateEncodings(wxCommandEvent& event); + void OnCheckNativeToFromString(wxCommandEvent& event); + void OnSize(wxSizeEvent& event); protected: - void DoEnumerateFamilies(bool fixedWidthOnly, - wxFontEncoding encoding = wxFONTENCODING_SYSTEM); + bool DoEnumerateFamilies(bool fixedWidthOnly, + wxFontEncoding encoding = wxFONTENCODING_SYSTEM, + bool silent = FALSE); + + void DoResizeFont(int diff); + void DoChangeFont(const wxFont& font, const wxColour& col = wxNullColour); void Resize(const wxSize& size, const wxFont& font = wxNullFont); + size_t m_fontSize; // in points + wxTextCtrl *m_textctrl; MyCanvas *m_canvas; @@ -115,11 +130,15 @@ enum // menu items Font_Quit = 1, Font_About, + Font_ViewMsg, + Font_IncSize, + Font_DecSize, Font_Choose = 100, Font_EnumFamiliesForEncoding, Font_EnumFamilies, Font_EnumFixedFamilies, Font_EnumEncodings, + Font_CheckNativeToFromString, Font_Max }; @@ -133,11 +152,15 @@ enum BEGIN_EVENT_TABLE(MyFrame, wxFrame) EVT_MENU(Font_Quit, MyFrame::OnQuit) EVT_MENU(Font_About, MyFrame::OnAbout) + EVT_MENU(Font_IncSize, MyFrame::OnIncFont) + EVT_MENU(Font_DecSize, MyFrame::OnDecFont) + EVT_MENU(Font_ViewMsg, MyFrame::OnViewMsg) EVT_MENU(Font_Choose, MyFrame::OnSelectFont) EVT_MENU(Font_EnumFamiliesForEncoding, MyFrame::OnEnumerateFamiliesForEncoding) EVT_MENU(Font_EnumFamilies, MyFrame::OnEnumerateFamilies) EVT_MENU(Font_EnumFixedFamilies, MyFrame::OnEnumerateFixedFamilies) EVT_MENU(Font_EnumEncodings, MyFrame::OnEnumerateEncodings) + EVT_MENU(Font_CheckNativeToFromString, MyFrame::OnCheckNativeToFromString) EVT_SIZE(MyFrame::OnSize) END_EVENT_TABLE() @@ -180,27 +203,38 @@ bool MyApp::OnInit() // frame constructor MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) - : wxFrame((wxFrame *)NULL, -1, title, pos, size) + : wxFrame((wxFrame *)NULL, -1, title, pos, size), m_textctrl(NULL) { + m_fontSize = 12; + // create a menu bar wxMenu *menuFile = new wxMenu; + menuFile->Append(Font_ViewMsg, "&View...\tCtrl-V", + "View an email message file"); + menuFile->AppendSeparator(); menuFile->Append(Font_About, "&About...\tCtrl-A", "Show about dialog"); menuFile->AppendSeparator(); menuFile->Append(Font_Quit, "E&xit\tAlt-X", "Quit this program"); wxMenu *menuFont = new wxMenu; + menuFont->Append(Font_IncSize, "&Increase font size by 2 points\tCtrl-I"); + menuFont->Append(Font_DecSize, "&Decrease font size by 2 points\tCtrl-D"); + menuFont->AppendSeparator(); menuFont->Append(Font_Choose, "&Select font...\tCtrl-S", "Select a standard font"); menuFont->AppendSeparator(); menuFont->Append(Font_EnumFamilies, "Enumerate font &families\tCtrl-F"); menuFont->Append(Font_EnumFixedFamilies, - "Enumerate f&ixed font families\tCtrl-I"); + "Enumerate fi&xed font families\tCtrl-X"); menuFont->Append(Font_EnumEncodings, "Enumerate &encodings\tCtrl-E"); menuFont->Append(Font_EnumFamiliesForEncoding, "Find font for en&coding...\tCtrl-C", "Find font families for given encoding"); + menuFont->AppendSeparator(); + menuFont->Append(Font_CheckNativeToFromString, + "Check Native Font Info To/From String"); // now append the freshly created menu to the menu bar... wxMenuBar *menuBar = new wxMenuBar; @@ -219,84 +253,125 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) m_canvas = new MyCanvas(this); // create a status bar just for fun (by default with 1 pane only) - CreateStatusBar(2); - SetStatusText("Welcome to wxWindows!"); + CreateStatusBar(); + SetStatusText("Welcome to wxWindows font demo!"); } +// -------------------------------------------------------- -// event handlers -void MyFrame::OnEnumerateEncodings(wxCommandEvent& WXUNUSED(event)) +class MyEncodingEnumerator : public wxFontEnumerator { - class MyEncodingEnumerator : public wxFontEnumerator - { - public: - MyEncodingEnumerator() { m_n = 0; } - - const wxString& GetText() const { return m_text; } +public: + MyEncodingEnumerator() + { m_n = 0; } - protected: - virtual bool OnFontEncoding(const wxString& family, - const wxString& encoding) - { - wxString text; - text.Printf("Encoding %d: %s (available in family '%s')\n", - ++m_n, encoding.c_str(), family.c_str()); - m_text += text; + const wxString& GetText() const + { return m_text; } - return TRUE; - } +protected: + virtual bool OnFontEncoding(const wxString& facename, + const wxString& encoding) + { + wxString text; + text.Printf(wxT("Encoding %d: %s (available in facename '%s')\n"), + ++m_n, encoding.c_str(), facename.c_str()); + m_text += text; + return TRUE; + } - private: - size_t m_n; +private: + size_t m_n; + wxString m_text; +}; - wxString m_text; - } fontEnumerator; +void MyFrame::OnEnumerateEncodings(wxCommandEvent& WXUNUSED(event)) +{ + MyEncodingEnumerator fontEnumerator; fontEnumerator.EnumerateEncodings(); - wxLogMessage("Enumerating all available encodings:\n%s", + wxLogMessage(wxT("Enumerating all available encodings:\n%s"), fontEnumerator.GetText().c_str()); } -void MyFrame::DoEnumerateFamilies(bool fixedWidthOnly, wxFontEncoding encoding) +// ------------------------------------------------------------- + +class MyFontEnumerator : public wxFontEnumerator { - class MyFontEnumerator : public wxFontEnumerator +public: + bool GotAny() const + { return !m_facenames.IsEmpty(); } + + const wxArrayString& GetFacenames() const + { return m_facenames; } + +protected: + virtual bool OnFacename(const wxString& facename) { - public: - MyFontEnumerator() { m_n = 0; } + m_facenames.Add(facename); + return TRUE; + } + + private: + wxArrayString m_facenames; +} fontEnumerator; - bool GotAny() const { return m_n; } +bool MyFrame::DoEnumerateFamilies(bool fixedWidthOnly, + wxFontEncoding encoding, + bool silent) +{ + MyFontEnumerator fontEnumerator; - const wxString& GetText() const { return m_text; } + fontEnumerator.EnumerateFacenames(encoding, fixedWidthOnly); - protected: - virtual bool OnFontFamily(const wxString& family) + if ( fontEnumerator.GotAny() ) + { + int nFacenames = fontEnumerator.GetFacenames().GetCount(); + if ( !silent ) { - wxString text; - text.Printf("Font family %d: %s\n", ++m_n, family.c_str()); - m_text += text; + wxLogStatus(this, wxT("Found %d %sfonts"), + nFacenames, fixedWidthOnly ? wxT("fixed width ") : wxT("")); + } - return TRUE; + wxString facename; + if ( silent ) + { + // choose the first + facename = fontEnumerator.GetFacenames().Item(0); } + else + { + // let the user choose + wxString *facenames = new wxString[nFacenames]; + int n; + for ( n = 0; n < nFacenames; n++ ) + facenames[n] = fontEnumerator.GetFacenames().Item(n); - private: - size_t m_n; + n = wxGetSingleChoiceIndex("Choose a facename", "Font demo", + nFacenames, facenames, this); - wxString m_text; - } fontEnumerator; + if ( n != -1 ) + facename = facenames[n]; - fontEnumerator.EnumerateFamilies(encoding, fixedWidthOnly); + delete [] facenames; + } - if ( fontEnumerator.GotAny() ) - { - wxLogMessage("Enumerating %s font families:\n%s", - fixedWidthOnly ? "fixed width" : "all", - fontEnumerator.GetText().c_str()); + if ( !facename.IsEmpty() ) + { + wxFont font(12, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, + wxFONTWEIGHT_NORMAL, FALSE, facename, encoding); + + DoChangeFont(font); + } + + return TRUE; } - else + else if ( !silent ) { - wxLogWarning("No such fonts found."); + wxLogWarning(wxT("No such fonts found.")); } + + return FALSE; } void MyFrame::OnEnumerateFamiliesForEncoding(wxCommandEvent& WXUNUSED(event)) @@ -314,21 +389,22 @@ void MyFrame::OnEnumerateFamiliesForEncoding(wxCommandEvent& WXUNUSED(event)) wxFONTENCODING_CP1252, }; - static const char *encodingNames[] = + static const wxString encodingNames[] = { - "West European (Latin 1)", - "Central European (Latin 2)", - "Cyrillic (Latin 5)", - "Greek (Latin 7)", - "West European new (Latin 0)", + "Western European (ISO-8859-1)", + "Central European (ISO-8859-2)", + "Cyrillic (ISO-8859-5)", + "Greek (ISO-8859-7)", + "Western European with Euro (ISO-8859-15)", "KOI8-R", - "Windows Latin 2", - "Windows Cyrillic", - "Windows Latin 1", + "Windows Central European (CP 1250)", + "Windows Cyrillic (CP 1251)", + "Windows Western European (CP 1252)", }; int n = wxGetSingleChoiceIndex("Choose an encoding", "Font demo", - WXSIZEOF(encodingNames), encodingNames, + WXSIZEOF(encodingNames), + encodingNames, this); if ( n != -1 ) @@ -337,6 +413,56 @@ void MyFrame::OnEnumerateFamiliesForEncoding(wxCommandEvent& WXUNUSED(event)) } } +void MyFrame::OnCheckNativeToFromString(wxCommandEvent& WXUNUSED(event)) +{ + wxString fontInfo = m_canvas->GetTextFont().GetNativeFontInfoDesc(); + + if ( fontInfo.IsEmpty() ) + { + wxLogError(wxT("Native font info string is empty!")); + } + else + { + wxFont *font = wxFont::New(fontInfo); + if ( fontInfo != font->GetNativeFontInfoDesc() ) + wxLogError(wxT("wxNativeFontInfo ToString()/FromString() broken!")); + else + wxLogError(wxT("wxNativeFontInfo works: %s"), fontInfo.c_str()); + delete font; + } +} + +void MyFrame::DoResizeFont(int diff) +{ + wxFont fontOld = m_canvas->GetTextFont(); + + DoChangeFont( + wxFont( + fontOld.GetPointSize() + diff, + fontOld.GetFamily(), + fontOld.GetStyle(), + fontOld.GetWeight(), + fontOld.GetUnderlined(), + fontOld.GetFaceName(), + fontOld.GetEncoding() + ) + ); +} + +void MyFrame::DoChangeFont(const wxFont& font, const wxColour& col) +{ + Resize(GetClientSize(), font); + + m_canvas->SetTextFont(font); + if ( col.Ok() ) + m_canvas->SetColour(col); + m_canvas->Refresh(); + + m_textctrl->SetFont(font); + if ( col.Ok() ) + m_textctrl->SetForegroundColour(col); +} + void MyFrame::OnSelectFont(wxCommandEvent& WXUNUSED(event)) { wxFontData data; @@ -350,14 +476,7 @@ void MyFrame::OnSelectFont(wxCommandEvent& WXUNUSED(event)) wxFont font = retData.GetChosenFont(); wxColour colour = retData.GetColour(); - Resize(GetSize(), font); - - m_canvas->SetTextFont(font); - m_canvas->SetColour(colour); - m_canvas->Refresh(); - - m_textctrl->SetFont(font); - m_textctrl->SetForegroundColour(colour); + DoChangeFont(font, colour); } } @@ -367,6 +486,121 @@ void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) Close(TRUE); } +void MyFrame::OnViewMsg(wxCommandEvent& WXUNUSED(event)) +{ + // first, choose the file + static wxString s_dir, s_file; + wxFileDialog dialog(this, "Open an email message file", + s_dir, s_file); + if ( dialog.ShowModal() != wxID_OK ) + return; + + // save for the next time + s_dir = dialog.GetDirectory(); + s_file = dialog.GetFilename(); + + wxString filename = dialog.GetPath(); + + // load it and search for Content-Type header + wxTextFile file(filename); + if ( !file.Open() ) + return; + + wxString charset; + + static const char *prefix = "Content-Type: text/plain; charset="; + const size_t len = strlen(prefix); + + size_t n, count = file.GetLineCount(); + for ( n = 0; n < count; n++ ) + { + wxString line = file[n]; + + if ( !line ) + { + // if it is an email message, headers are over, no need to parse + // all the file + break; + } + + if ( line.Left(len) == prefix ) + { + // found! + const wxChar *pc = line.c_str() + len; + if ( *pc == '"' ) + pc++; + + while ( *pc && *pc != '"' ) + { + charset += *pc++; + } + + break; + } + } + + if ( !charset ) + { + wxLogError(wxT("The file '%s' doesn't contain charset information."), + filename.c_str()); + + return; + } + + // ok, now get the corresponding encoding + wxFontEncoding fontenc = wxTheFontMapper->CharsetToEncoding(charset); + if ( fontenc == wxFONTENCODING_SYSTEM ) + { + wxLogError(wxT("Charset '%s' is unsupported."), charset.c_str()); + return; + } + + m_textctrl->LoadFile(filename); + + if ( fontenc == wxFONTENCODING_UTF8 || + !wxTheFontMapper->IsEncodingAvailable(fontenc) ) + { + // try to find some similar encoding: + wxFontEncoding encAlt; + if ( wxTheFontMapper->GetAltForEncoding(fontenc, &encAlt) ) + { + wxEncodingConverter conv; + + if (conv.Init(fontenc, encAlt)) + { + fontenc = encAlt; + m_textctrl -> SetValue(conv.Convert(m_textctrl -> GetValue())); + } + else + { + wxLogWarning(wxT("Cannot convert from '%s' to '%s'."), + wxFontMapper::GetEncodingDescription(fontenc).c_str(), + wxFontMapper::GetEncodingDescription(encAlt).c_str()); + } + } + else + wxLogWarning(wxT("No fonts for encoding '%s' on this system."), + wxFontMapper::GetEncodingDescription(fontenc).c_str()); + } + + // and now create the correct font + if ( !DoEnumerateFamilies(FALSE, fontenc, TRUE /* silent */) ) + { + wxFont font(12, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, + wxFONTWEIGHT_NORMAL, FALSE /* !underlined */, + wxEmptyString /* facename */, fontenc); + if ( font.Ok() ) + { + DoChangeFont(font); + } + else + { + wxLogWarning(wxT("No fonts for encoding '%s' on this system."), + wxFontMapper::GetEncodingDescription(fontenc).c_str()); + } + } +} + void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) { wxMessageBox("wxWindows font demo\n" @@ -377,20 +611,23 @@ void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) void MyFrame::OnSize(wxSizeEvent& event) { - wxSize size = event.GetSize(); + Resize(GetClientSize()); - Resize(size); + event.Skip(); } void MyFrame::Resize(const wxSize& size, const wxFont& font) { + if ( !m_textctrl ) + return; + wxCoord h; if ( font.Ok() ) { wxClientDC dc(this); dc.SetFont(font); - h = 4*dc.GetCharHeight() + 4; + h = 10*(dc.GetCharHeight() + 1); } else { @@ -410,10 +647,9 @@ BEGIN_EVENT_TABLE(MyCanvas, wxWindow) END_EVENT_TABLE() MyCanvas::MyCanvas( wxWindow *parent ) - : wxWindow( parent, -1 ) + : wxWindow( parent, -1 ), + m_colour(*wxRED), m_font(*wxNORMAL_FONT) { - m_font = *wxNORMAL_FONT; - m_colour = *wxRED; } MyCanvas::~MyCanvas() @@ -431,13 +667,22 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) // output the font name/info wxString fontInfo; - fontInfo.Printf("Font family is '%s', style '%s', weight '%s'", + fontInfo.Printf(wxT("Font size is %d points, family is %s, style %s, weight %s"), + m_font.GetPointSize(), m_font.GetFamilyString().c_str(), m_font.GetStyleString().c_str(), m_font.GetWeightString().c_str()); dc.DrawText(fontInfo, 5, 5); + if ( m_font.Ok() ) + { + wxString fontDesc = m_font.GetNativeFontInfoDesc(); + dc.SetFont(m_font); + fontInfo.Printf(wxT("Native font info: %s"), fontDesc.c_str()); + dc.DrawText(fontInfo, 5, 5 + dc.GetCharHeight()); + } + // prepare to draw the font dc.SetFont(m_font); dc.SetTextForeground(m_colour); @@ -455,7 +700,7 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) { for ( int j = 0; j < 32; j++ ) { - dc.DrawText(char(32*i + j), x + w*j, y + h*i); + dc.DrawText(wxChar(32*i + j), x + w*j, y + h*i); } }