X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a1d58ddc1557d0bd454ed9ccd58d7761ed242d67..f1567cddead054974c4a079ed8ee2c798ef998dc:/samples/font/font.cpp?ds=sidebyside diff --git a/samples/font/font.cpp b/samples/font/font.cpp index 7aee6fac4a..8c1a0b630a 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 +84,7 @@ public: // event handlers (these functions should _not_ be virtual) void OnQuit(wxCommandEvent& event); void OnAbout(wxCommandEvent& event); + void OnViewMsg(wxCommandEvent& event); void OnSelectFont(wxCommandEvent& event); void OnEnumerateFamiliesForEncoding(wxCommandEvent& event); void OnEnumerateFamilies(wxCommandEvent& WXUNUSED(event)) @@ -92,8 +96,9 @@ public: 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 DoChangeFont(const wxFont& font, const wxColour& col = wxNullColour); @@ -117,6 +122,7 @@ enum // menu items Font_Quit = 1, Font_About, + Font_ViewMsg, Font_Choose = 100, Font_EnumFamiliesForEncoding, Font_EnumFamilies, @@ -135,6 +141,7 @@ enum BEGIN_EVENT_TABLE(MyFrame, wxFrame) EVT_MENU(Font_Quit, MyFrame::OnQuit) EVT_MENU(Font_About, MyFrame::OnAbout) + EVT_MENU(Font_ViewMsg, MyFrame::OnViewMsg) EVT_MENU(Font_Choose, MyFrame::OnSelectFont) EVT_MENU(Font_EnumFamiliesForEncoding, MyFrame::OnEnumerateFamiliesForEncoding) EVT_MENU(Font_EnumFamilies, MyFrame::OnEnumerateFamilies) @@ -187,6 +194,9 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) // 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"); @@ -225,34 +235,36 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) 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("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(); @@ -260,55 +272,84 @@ void MyFrame::OnEnumerateEncodings(wxCommandEvent& WXUNUSED(event)) fontEnumerator.GetText().c_str()); } -void MyFrame::DoEnumerateFamilies(bool fixedWidthOnly, wxFontEncoding encoding) -{ - class MyFontEnumerator : public wxFontEnumerator - { - public: - bool GotAny() const { return !m_facenames.IsEmpty(); } +// ------------------------------------------------------------- - const wxArrayString& GetFacenames() const { return m_facenames; } +class MyFontEnumerator : public wxFontEnumerator +{ +public: + bool GotAny() const + { return !m_facenames.IsEmpty(); } - protected: - virtual bool OnFontFamily(const wxString& family) - { - m_facenames.Add(family); + const wxArrayString& GetFacenames() const + { return m_facenames; } - return TRUE; - } +protected: + virtual bool OnFacename(const wxString& facename) + { + m_facenames.Add(facename); + return TRUE; + } private: wxArrayString m_facenames; - } fontEnumerator; +} fontEnumerator; + +bool MyFrame::DoEnumerateFamilies(bool fixedWidthOnly, + wxFontEncoding encoding, + bool silent) +{ + MyFontEnumerator fontEnumerator; - fontEnumerator.EnumerateFamilies(encoding, fixedWidthOnly); + fontEnumerator.EnumerateFacenames(encoding, fixedWidthOnly); if ( fontEnumerator.GotAny() ) { - int n, nFacenames = fontEnumerator.GetFacenames().GetCount(); - wxLogStatus(this, "Found %d %sfonts", - nFacenames, fixedWidthOnly ? "fixed width " : ""); + int nFacenames = fontEnumerator.GetFacenames().GetCount(); + if ( !silent ) + { + wxLogStatus(this, "Found %d %sfonts", + nFacenames, fixedWidthOnly ? "fixed width " : ""); + } + + 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); + + n = wxGetSingleChoiceIndex("Choose a facename", "Font demo", + nFacenames, facenames, this); - wxString *facenames = new wxString[nFacenames]; - for ( n = 0; n < nFacenames; n++ ) - facenames[n] = fontEnumerator.GetFacenames().Item(n); + if ( n != -1 ) + facename = facenames[n]; - n = wxGetSingleChoiceIndex("Choose a facename", "Font demo", - nFacenames, facenames, this); - if ( n != -1 ) + delete [] facenames; + } + + if ( !facename.IsEmpty() ) { - wxFont font(14, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, - wxFONTWEIGHT_NORMAL, FALSE, facenames[n], encoding); + wxFont font(12, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, + wxFONTWEIGHT_NORMAL, FALSE, facename, encoding); DoChangeFont(font); } - delete [] facenames; + return TRUE; } - else + else if ( !silent ) { wxLogWarning("No such fonts found."); } + + return FALSE; } void MyFrame::OnEnumerateFamiliesForEncoding(wxCommandEvent& WXUNUSED(event)) @@ -387,6 +428,120 @@ 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 char *pc = line.c_str() + len; + if ( *pc == '"' ) + pc++; + + while ( *pc && *pc != '"' ) + { + charset += *pc++; + } + + break; + } + } + + if ( !charset ) + { + wxLogError("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("Charset '%s' is unsupported.", charset.c_str()); + return; + } + + m_textctrl->LoadFile(filename); + + if (!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("Cannot convert from '%s' to '%s'.", + wxFontMapper::GetEncodingDescription(fontenc).c_str(), + wxFontMapper::GetEncodingDescription(encAlt).c_str()); + } + } + else + wxLogWarning("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("No fonts for encoding '%s' on this system.", + wxFontMapper::GetEncodingDescription(fontenc).c_str()); + } + } +} + void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) { wxMessageBox("wxWindows font demo\n" @@ -400,6 +555,8 @@ void MyFrame::OnSize(wxSizeEvent& event) wxSize size = event.GetSize(); Resize(size); + + event.Skip(); } void MyFrame::Resize(const wxSize& size, const wxFont& font) @@ -413,7 +570,7 @@ void MyFrame::Resize(const wxSize& size, const wxFont& font) wxClientDC dc(this); dc.SetFont(font); - h = 4*dc.GetCharHeight() + 4; + h = 10*(dc.GetCharHeight() + 1); } else { @@ -433,10 +590,9 @@ 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()