X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1ccd74daf9debd6a38448596790b1d864dc67615..be71e18af4e329233714e2e0b59049ef6b3c606d:/samples/font/font.cpp diff --git a/samples/font/font.cpp b/samples/font/font.cpp index d18e23eea7..472ac4a4ab 100644 --- a/samples/font/font.cpp +++ b/samples/font/font.cpp @@ -5,7 +5,7 @@ // Modified by: // Created: 30.09.99 // RCS-ID: $Id$ -// Copyright: (c) Vadim Zeitlin +// Copyright: (c) 1999 Vadim Zeitlin // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// @@ -24,7 +24,12 @@ #include #endif +#include #include +#include +#include +#include +#include // ---------------------------------------------------------------------------- // private classes @@ -79,33 +84,40 @@ 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 OnCreateFont(wxCommandEvent& event); + void OnEnumerateFamiliesForEncoding(wxCommandEvent& event); + void OnEnumerateFamilies(wxCommandEvent& WXUNUSED(event)) + { DoEnumerateFamilies(FALSE); } + void OnEnumerateFixedFamilies(wxCommandEvent& WXUNUSED(event)) + { DoEnumerateFamilies(TRUE); } + void OnEnumerateEncodings(wxCommandEvent& event); -protected: - MyCanvas *m_canvas; + void OnCheckNativeToFromString(wxCommandEvent& event); -private: - // any class wishing to process wxWindows events must use this macro - DECLARE_EVENT_TABLE() -}; + void OnSize(wxSizeEvent& event); -// A custom font dialog which allows to directly edit wxFont proprieties -class MyFontDialog : public wxDialog -{ -public: - MyFontDialog(MyFrame *frame); +protected: + bool DoEnumerateFamilies(bool fixedWidthOnly, + wxFontEncoding encoding = wxFONTENCODING_SYSTEM, + bool silent = FALSE); - // event handlers - void OnApply(wxCommandEvent& WXUNUSED(event)) { DoApply(); } + void DoResizeFont(int diff); + void DoChangeFont(const wxFont& font, const wxColour& col = wxNullColour); -protected: - void DoApply(); + void Resize(const wxSize& size, const wxFont& font = wxNullFont); + + size_t m_fontSize; // in points - MyCanvas *m_canvas; + wxTextCtrl *m_textctrl; + MyCanvas *m_canvas; private: - //DECLARE_EVENT_TABLE() TODO + // any class wishing to process wxWindows events must use this macro + DECLARE_EVENT_TABLE() }; // ---------------------------------------------------------------------------- @@ -118,8 +130,16 @@ enum // menu items Font_Quit = 1, Font_About, + Font_ViewMsg, + Font_IncSize, + Font_DecSize, Font_Choose = 100, - Font_Create + Font_EnumFamiliesForEncoding, + Font_EnumFamilies, + Font_EnumFixedFamilies, + Font_EnumEncodings, + Font_CheckNativeToFromString, + Font_Max }; // ---------------------------------------------------------------------------- @@ -132,8 +152,17 @@ 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_Create, MyFrame::OnCreateFont) + 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() // Create a new application object: this macro will allow wxWindows to create @@ -155,7 +184,7 @@ IMPLEMENT_APP(MyApp) bool MyApp::OnInit() { // Create the main application window - MyFrame *frame = new MyFrame("Minimal wxWindows App", + MyFrame *frame = new MyFrame("Font wxWindows demo", wxPoint(50, 50), wxSize(450, 340)); // Show it and tell the application that it's our main window @@ -174,23 +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) { - // set the frame icon - SetIcon(wxICON(mondrian)); + 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_Choose, "&Select font...\tCtrl-F", + 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->Append(Font_Create, "&Create font...\tCtrl-C", - "Create a custom font"); + menuFont->AppendSeparator(); + menuFont->Append(Font_EnumFamilies, "Enumerate font &families\tCtrl-F"); + menuFont->Append(Font_EnumFixedFamilies, + "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; @@ -200,21 +244,223 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) // ... and attach this menu bar to the frame SetMenuBar(menuBar); + m_textctrl = new wxTextCtrl(this, -1, + "Paste text here to see how it looks\n" + "like in the given font", + wxDefaultPosition, wxDefaultSize, + wxTE_MULTILINE); + 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!"); +} + +// -------------------------------------------------------- + +class MyEncodingEnumerator : public wxFontEnumerator +{ +public: + MyEncodingEnumerator() + { m_n = 0; } + + const wxString& GetText() const + { return m_text; } + +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; + wxString m_text; +}; + +void MyFrame::OnEnumerateEncodings(wxCommandEvent& WXUNUSED(event)) +{ + MyEncodingEnumerator fontEnumerator; + + fontEnumerator.EnumerateEncodings(); + + wxLogMessage(wxT("Enumerating all available encodings:\n%s"), + fontEnumerator.GetText().c_str()); +} + +// ------------------------------------------------------------- + +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) + { + m_facenames.Add(facename); + return TRUE; + } + + private: + wxArrayString m_facenames; +} fontEnumerator; + +bool MyFrame::DoEnumerateFamilies(bool fixedWidthOnly, + wxFontEncoding encoding, + bool silent) +{ + MyFontEnumerator fontEnumerator; + + fontEnumerator.EnumerateFacenames(encoding, fixedWidthOnly); + + if ( fontEnumerator.GotAny() ) + { + int nFacenames = fontEnumerator.GetFacenames().GetCount(); + if ( !silent ) + { + wxLogStatus(this, wxT("Found %d %sfonts"), + nFacenames, fixedWidthOnly ? wxT("fixed width ") : wxT("")); + } + + 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); + + if ( n != -1 ) + facename = facenames[n]; + + delete [] facenames; + } + + if ( !facename.IsEmpty() ) + { + wxFont font(12, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, + wxFONTWEIGHT_NORMAL, FALSE, facename, encoding); + + DoChangeFont(font); + } + + return TRUE; + } + else if ( !silent ) + { + wxLogWarning(wxT("No such fonts found.")); + } + + return FALSE; +} + +void MyFrame::OnEnumerateFamiliesForEncoding(wxCommandEvent& WXUNUSED(event)) +{ + static wxFontEncoding encodings[] = + { + wxFONTENCODING_ISO8859_1, + wxFONTENCODING_ISO8859_2, + wxFONTENCODING_ISO8859_5, + wxFONTENCODING_ISO8859_7, + wxFONTENCODING_ISO8859_15, + wxFONTENCODING_KOI8, + wxFONTENCODING_CP1250, + wxFONTENCODING_CP1251, + wxFONTENCODING_CP1252, + }; + + static const wxString encodingNames[] = + { + "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 Central European (CP 1250)", + "Windows Cyrillic (CP 1251)", + "Windows Western European (CP 1252)", + }; + + int n = wxGetSingleChoiceIndex("Choose an encoding", "Font demo", + WXSIZEOF(encodingNames), + encodingNames, + this); + + if ( n != -1 ) + { + DoEnumerateFamilies(FALSE, encodings[n]); + } } +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; + } +} -// event handlers +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::OnCreateFont(wxCommandEvent& WXUNUSED(event)) +void MyFrame::DoChangeFont(const wxFont& font, const wxColour& col) { - MyFontDialog dialog(this); + Resize(GetClientSize(), font); - (void)dialog.ShowModal(); + 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)) @@ -227,9 +473,10 @@ void MyFrame::OnSelectFont(wxCommandEvent& WXUNUSED(event)) if ( dialog.ShowModal() == wxID_OK ) { wxFontData retData = dialog.GetFontData(); - m_canvas->SetTextFont(retData.GetChosenFont()); - m_canvas->SetColour(retData.GetColour()); - m_canvas->Refresh(); + wxFont font = retData.GetChosenFont(); + wxColour colour = retData.GetColour(); + + DoChangeFont(font, colour); } } @@ -239,12 +486,157 @@ 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.", "About Font", + wxMessageBox("wxWindows font demo\n" + "(c) 1999 Vadim Zeitlin", + "About Font", wxOK | wxICON_INFORMATION, this); } +void MyFrame::OnSize(wxSizeEvent& event) +{ + Resize(GetClientSize()); + + 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 = 10*(dc.GetCharHeight() + 1); + } + else + { + h = m_textctrl->GetSize().y; + } + + m_textctrl->SetSize(0, 0, size.x, h); + m_canvas->SetSize(0, h, size.x, size.y - h); +} // ---------------------------------------------------------------------------- // MyCanvas @@ -255,10 +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() @@ -276,13 +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); @@ -293,14 +693,14 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) // the origin for our table int x = 5, - y = 2*h + 5; + y = 2*h; // print all font symbols from 32 to 256 in 7 rows of 32 chars each for ( int i = 1; i < 8; i++ ) { 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); } } @@ -323,36 +723,3 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) dc.DrawLine(xl, y, xl, y + 7*h - 2); } } - -// ---------------------------------------------------------------------------- -// MyFontDialog -// ---------------------------------------------------------------------------- - -MyFontDialog::MyFontDialog(MyFrame *frame) - : wxDialog(frame, -1, wxString("Edit font attributes")) -{ - m_canvas = frame->GetCanvas(); - - // create controls - wxSize sizeBtn = wxButton::GetDefaultSize(); - - // TODO - - // position and size the dialog - SetClientSize(4*sizeBtn.x, 10*sizeBtn.y); - Centre(); -} - -void MyFontDialog::DoApply() -{ - wxFont font; //(size, family, style, weight, underlined, face, encoding); - if ( !font.Ok() ) - { - wxLogError("Font creation failed."); - } - else - { - m_canvas->SetTextFont(font); - m_canvas->Refresh(); - } -}