#include <wx/choicdlg.h>
#include <wx/fontdlg.h>
#include <wx/fontenum.h>
+#include <wx/fontmap.h>
+#include <wx/encconv.h>
+#include <wx/textfile.h>
// ----------------------------------------------------------------------------
// private classes
// 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))
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);
void Resize(const wxSize& size, const wxFont& font = wxNullFont);
// menu items
Font_Quit = 1,
Font_About,
+ Font_ViewMsg,
Font_Choose = 100,
Font_EnumFamiliesForEncoding,
Font_EnumFamilies,
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)
// 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)
{
// 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");
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; }
+public:
+ MyEncodingEnumerator()
+ { m_n = 0; }
- const wxString& GetText() const { return m_text; }
+ const wxString& GetText() const
+ { return m_text; }
- 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;
-
- 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();
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;
+ }
- bool GotAny() const { return m_n; }
+ private:
+ wxArrayString m_facenames;
+} fontEnumerator;
+
+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, "Found %d %sfonts",
+ nFacenames, fixedWidthOnly ? "fixed width " : "");
+ }
- 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.");
}
+
+ return FALSE;
}
void MyFrame::OnEnumerateFamiliesForEncoding(wxCommandEvent& WXUNUSED(event))
};
int n = wxGetSingleChoiceIndex("Choose an encoding", "Font demo",
- WXSIZEOF(encodingNames), encodingNames,
+ WXSIZEOF(encodingNames),
+ (char **)encodingNames,
this);
if ( n != -1 )
}
}
+void MyFrame::DoChangeFont(const wxFont& font, const wxColour& col)
+{
+ Resize(GetSize(), 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;
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);
}
}
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"
wxSize size = event.GetSize();
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
{
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()
projects / wxWidgets.git / blobdiff