X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3c1866e88fb77fc7e0b349cc15f6cebf0f727a9d..f538710f0b798b21365fd614ba531055b225b115:/samples/font/font.cpp diff --git a/samples/font/font.cpp b/samples/font/font.cpp index 50e6985b24..aad214f94c 100644 --- a/samples/font/font.cpp +++ b/samples/font/font.cpp @@ -10,7 +10,7 @@ ///////////////////////////////////////////////////////////////////////////// // For compilers that support precompilation, includes "wx/wx.h". -#include +#include "wx/wxprec.h" #ifdef __BORLANDC__ #pragma hdrstop @@ -19,16 +19,18 @@ // for all others, include the necessary headers (this file is usually all you // need because it includes almost all + #include "wx/wx.h" - #include + #include "wx/log.h" #endif -#include -#include -#include -#include -#include +#include "wx/choicdlg.h" +#include "wx/fontdlg.h" +#include "wx/fontenum.h" +#include "wx/fontmap.h" +#include "wx/encconv.h" +#include "wx/splitter.h" +#include "wx/textfile.h" // ---------------------------------------------------------------------------- // private classes @@ -83,6 +85,14 @@ 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 OnBold(wxCommandEvent& event); + void OnItalic(wxCommandEvent& event); + void OnUnderline(wxCommandEvent& event); + void OnViewMsg(wxCommandEvent& event); void OnSelectFont(wxCommandEvent& event); void OnEnumerateFamiliesForEncoding(wxCommandEvent& event); @@ -92,15 +102,17 @@ public: { DoEnumerateFamilies(TRUE); } void OnEnumerateEncodings(wxCommandEvent& event); - void OnSize(wxSizeEvent& event); + void OnCheckNativeToFromString(wxCommandEvent& 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; @@ -121,11 +133,17 @@ enum Font_Quit = 1, Font_About, Font_ViewMsg, + Font_IncSize, + Font_DecSize, + Font_Bold, + Font_Italic, + Font_Underlined, Font_Choose = 100, Font_EnumFamiliesForEncoding, Font_EnumFamilies, Font_EnumFixedFamilies, Font_EnumEncodings, + Font_CheckNativeToFromString, Font_Max }; @@ -138,15 +156,21 @@ enum // simple menu events like this the static method is much simpler. 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_About, MyFrame::OnAbout) + + EVT_MENU(Font_IncSize, MyFrame::OnIncFont) + EVT_MENU(Font_DecSize, MyFrame::OnDecFont) + EVT_MENU(Font_Bold, MyFrame::OnBold) + EVT_MENU(Font_Italic, MyFrame::OnItalic) + EVT_MENU(Font_Underlined, MyFrame::OnUnderline) + EVT_MENU(Font_CheckNativeToFromString, MyFrame::OnCheckNativeToFromString) + 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_SIZE(MyFrame::OnSize) END_EVENT_TABLE() // Create a new application object: this macro will allow wxWindows to create @@ -169,7 +193,7 @@ bool MyApp::OnInit() { // Create the main application window MyFrame *frame = new MyFrame("Font wxWindows demo", - wxPoint(50, 50), wxSize(450, 340)); + wxPoint(50, 50), wxSize(600, 400)); // Show it and tell the application that it's our main window frame->Show(TRUE); @@ -189,6 +213,8 @@ bool MyApp::OnInit() MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) : wxFrame((wxFrame *)NULL, -1, title, pos, size), m_textctrl(NULL) { + m_fontSize = 12; + // create a menu bar wxMenu *menuFile = new wxMenu; @@ -200,15 +226,27 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) menuFile->Append(Font_Quit, "E&xit\tAlt-X", "Quit this program"); wxMenu *menuFont = new wxMenu; - menuFont->Append(Font_Choose, "&Select font...\tCtrl-S", - "Select a standard font"); + 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_EnumFamilies, "Enumerate font &families\tCtrl-F"); - menuFont->Append(Font_EnumFixedFamilies, - "Enumerate f&ixed font families\tCtrl-I"); - menuFont->Append(Font_EnumEncodings, + menuFont->Append(Font_Bold, "&Bold\tCtrl-B", "Toggle bold state", TRUE); + menuFont->Append(Font_Italic, "&Oblique\tCtrl-O", "Toggle italic state", TRUE); + menuFont->Append(Font_Underlined, "&Underlined\tCtrl-U", + "Toggle underlined state", TRUE); + menuFont->AppendSeparator(); + menuFont->Append(Font_CheckNativeToFromString, + "Check Native Font Info To/From String"); + + wxMenu *menuSelect = new wxMenu; + menuSelect->Append(Font_Choose, "&Select font...\tCtrl-S", + "Select a standard font"); + menuSelect->AppendSeparator(); + menuSelect->Append(Font_EnumFamilies, "Enumerate font &families\tCtrl-F"); + menuSelect->Append(Font_EnumFixedFamilies, + "Enumerate fi&xed font families\tCtrl-X"); + menuSelect->Append(Font_EnumEncodings, "Enumerate &encodings\tCtrl-E"); - menuFont->Append(Font_EnumFamiliesForEncoding, + menuSelect->Append(Font_EnumFamiliesForEncoding, "Find font for en&coding...\tCtrl-C", "Find font families for given encoding"); @@ -216,107 +254,143 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) wxMenuBar *menuBar = new wxMenuBar; menuBar->Append(menuFile, "&File"); menuBar->Append(menuFont, "F&ont"); + menuBar->Append(menuSelect, "&Select"); // ... and attach this menu bar to the frame SetMenuBar(menuBar); - m_textctrl = new wxTextCtrl(this, -1, + wxSplitterWindow *splitter = new wxSplitterWindow(this); + + m_textctrl = new wxTextCtrl(splitter, -1, "Paste text here to see how it looks\n" "like in the given font", wxDefaultPosition, wxDefaultSize, wxTE_MULTILINE); - m_canvas = new MyCanvas(this); + m_canvas = new MyCanvas(splitter); + + splitter->SplitHorizontally(m_textctrl, m_canvas, 100); // create a status bar just for fun (by default with 1 pane only) 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& 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; + 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 - { - 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 OnFacename(const wxString& facename) - { - m_facenames.Add(facename); + 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.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, 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); - wxString *facenames = new wxString[nFacenames]; - for ( n = 0; n < nFacenames; n++ ) - facenames[n] = fontEnumerator.GetFacenames().Item(n); + n = wxGetSingleChoiceIndex("Choose a facename", "Font demo", + nFacenames, facenames, this); - n = wxGetSingleChoiceIndex("Choose a facename", "Font demo", - nFacenames, facenames, this); - if ( n != -1 ) + if ( n != -1 ) + facename = facenames[n]; + + 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."); + wxLogWarning(wxT("No such fonts found.")); } + + return FALSE; } void MyFrame::OnEnumerateFamiliesForEncoding(wxCommandEvent& WXUNUSED(event)) @@ -334,22 +408,22 @@ 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), - (char **)encodingNames, + encodingNames, this); if ( n != -1 ) @@ -358,10 +432,60 @@ void MyFrame::OnEnumerateFamiliesForEncoding(wxCommandEvent& WXUNUSED(event)) } } -void MyFrame::DoChangeFont(const wxFont& font, const wxColour& col) +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 + wxLogMessage(wxT("wxNativeFontInfo works: %s"), fontInfo.c_str()); + + delete font; + } +} + +void MyFrame::DoResizeFont(int diff) +{ + wxFont font = m_canvas->GetTextFont(); + + font.SetPointSize(font.GetPointSize() + diff); + DoChangeFont(font); +} + +void MyFrame::OnBold(wxCommandEvent& event) +{ + wxFont font = m_canvas->GetTextFont(); + + font.SetWeight(event.IsChecked() ? wxFONTWEIGHT_BOLD : wxFONTWEIGHT_NORMAL); + DoChangeFont(font); +} + +void MyFrame::OnItalic(wxCommandEvent& event) +{ + wxFont font = m_canvas->GetTextFont(); + + font.SetStyle(event.IsChecked() ? wxFONTSTYLE_ITALIC : wxFONTSTYLE_NORMAL); + DoChangeFont(font); +} + +void MyFrame::OnUnderline(wxCommandEvent& event) { - Resize(GetSize(), font); + wxFont font = m_canvas->GetTextFont(); + + font.SetUnderlined(event.IsChecked()); + DoChangeFont(font); +} +void MyFrame::DoChangeFont(const wxFont& font, const wxColour& col) +{ m_canvas->SetTextFont(font); if ( col.Ok() ) m_canvas->SetColour(col); @@ -386,6 +510,15 @@ void MyFrame::OnSelectFont(wxCommandEvent& WXUNUSED(event)) wxColour colour = retData.GetColour(); DoChangeFont(font, colour); + + // update the state of the bold/italic/underlined menu items + wxMenuBar *mbar = GetMenuBar(); + if ( mbar ) + { + mbar->Check(Font_Bold, font.GetWeight() == wxFONTWEIGHT_BOLD); + mbar->Check(Font_Italic, font.GetStyle() == wxFONTSTYLE_ITALIC); + mbar->Check(Font_Underlined, font.GetUnderlined()); + } } } @@ -435,7 +568,7 @@ void MyFrame::OnViewMsg(wxCommandEvent& WXUNUSED(event)) if ( line.Left(len) == prefix ) { // found! - const char *pc = line.c_str() + len; + const wxChar *pc = line.c_str() + len; if ( *pc == '"' ) pc++; @@ -450,25 +583,64 @@ void MyFrame::OnViewMsg(wxCommandEvent& WXUNUSED(event)) if ( !charset ) { - wxLogError("The file '%s' doesn't contain charset information.", + wxLogError(wxT("The file '%s' doesn't contain charset information."), filename.c_str()); return; } // ok, now get the corresponding encoding - wxFontMapper fontMapper; - wxFontEncoding fontenc = fontMapper.CharsetToEncoding(charset); + wxFontEncoding fontenc = wxTheFontMapper->CharsetToEncoding(charset); if ( fontenc == wxFONTENCODING_SYSTEM ) { - wxLogError("Charset '%s' is unsupported.", charset.c_str()); + wxLogError(wxT("Charset '%s' is unsupported."), charset.c_str()); return; } - // and now create the correct font m_textctrl->LoadFile(filename); - DoEnumerateFamilies(FALSE, fontenc); + 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)) @@ -479,37 +651,6 @@ void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) wxOK | wxICON_INFORMATION, this); } -void MyFrame::OnSize(wxSizeEvent& event) -{ - 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 = 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 // ---------------------------------------------------------------------------- @@ -519,10 +660,9 @@ 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() @@ -535,36 +675,78 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) PrepareDC(dc); // set background - dc.SetBackground(wxBrush("white", wxSOLID)); + dc.SetBackground(wxBrush(wxT("white"), wxSOLID)); dc.Clear(); + // one text line height + wxCoord hLine = dc.GetCharHeight(); + + // the current text origin + wxCoord x = 5, + y = 5; + // 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: %s, encoding: %s"), + m_font.GetPointSize(), m_font.GetFamilyString().c_str(), + wxTheFontMapper-> + GetEncodingDescription(m_font.GetEncoding()).c_str()); + + dc.DrawText(fontInfo, x, y); + y += hLine; + + fontInfo.Printf(wxT("Style: %s, weight: %s, fixed width: %s"), m_font.GetStyleString().c_str(), - m_font.GetWeightString().c_str()); + m_font.GetWeightString().c_str(), + m_font.IsFixedWidth() ? _T("yes") : _T("no")); + + dc.DrawText(fontInfo, x, y); + y += hLine; + + if ( m_font.Ok() ) + { + wxNativeFontInfo *info = m_font.GetNativeFontInfo(); + if ( info ) + { + delete info; + + wxString fontDesc = m_font.GetNativeFontInfoUserDesc(); + fontInfo.Printf(wxT("Native font info: %s"), fontDesc.c_str()); + + dc.DrawText(fontInfo, x, y); + y += hLine; + } + } - dc.DrawText(fontInfo, 5, 5); + y += hLine; // prepare to draw the font dc.SetFont(m_font); dc.SetTextForeground(m_colour); - // the size of one cell (char + small margin) - int w = dc.GetCharWidth() + 5, - h = dc.GetCharHeight() + 4; + // the size of one cell (Normally biggest char + small margin) + long maxCharWidth, maxCharHeight; + dc.GetTextExtent(wxT("W"), &maxCharWidth, &maxCharHeight); + int w = maxCharWidth + 5, + h = maxCharHeight + 4; - // the origin for our table - int x = 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 i = 0; i < 7; i++ ) { for ( int j = 0; j < 32; j++ ) { - dc.DrawText(char(32*i + j), x + w*j, y + h*i); + wxChar c = 32 * (i + 1) + j; + + long charWidth, charHeight; + dc.GetTextExtent(c, &charWidth, &charHeight); + dc.DrawText + ( + c, + x + w*j + (maxCharWidth - charWidth) / 2 + 1, + y + h*i + (maxCharHeight - charHeight) / 2 + ); } } @@ -573,17 +755,16 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) int l; // horizontal - y += h; for ( l = 0; l < 8; l++ ) { int yl = y + h*l - 2; - dc.DrawLine(x - 2, yl, x + 32*w - 2, yl); + dc.DrawLine(x - 2, yl, x + 32*w - 1, yl); } // and vertical for ( l = 0; l < 33; l++ ) { int xl = x + w*l - 2; - dc.DrawLine(xl, y, xl, y + 7*h - 2); + dc.DrawLine(xl, y - 2, xl, y + 7*h - 1); } }