// Modified by:
// Created: 30.09.99
// RCS-ID: $Id$
-// Copyright: (c) Vadim Zeitlin
+// Copyright: (c) 1999 Vadim Zeitlin
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#include <wx/log.h>
#endif
+#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 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()
};
// ----------------------------------------------------------------------------
// 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
};
// ----------------------------------------------------------------------------
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
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
// 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;
// ... 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("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("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, "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);
+
+ 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("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[] =
+ {
+ "West European (Latin 1)",
+ "Central European (Latin 2)",
+ "Cyrillic (Latin 5)",
+ "Greek (Latin 7)",
+ "West European new (Latin 0)",
+ "KOI8-R",
+ "Windows Latin 2",
+ "Windows Cyrillic",
+ "Windows Latin 1",
+ };
+
+ 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("Native font info string is empty!");
+ }
+ else
+ {
+ wxFont *font = wxFont::New(fontInfo);
+ if ( fontInfo != font->GetNativeFontInfoDesc() )
+ wxLogError("wxNativeFontInfo ToString()/FromString() broken!");
+ else
+ wxLogError("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))
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);
}
}
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.", "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
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()
// output the font name/info
wxString fontInfo;
- fontInfo.Printf("Font family is '%s', style '%s', weight '%s'",
+ fontInfo.Printf("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(wxFont(fontDesc));
+ fontInfo.Printf("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);
// 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++ )
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();
- }
-}
projects / wxWidgets.git / blobdiff