Don't call wxTextMeasure::BeginMeasuring() when using non-native wxDC.

[wxWidgets.git] / samples / font / font.cpp

diff --git a/samples/font/font.cpp b/samples/font/font.cpp
index 8dc2e42d2c6866bb33056b814604ba4b4be3ba42..0dbf46ac59799eef0567ce52ffb931da21f0050a 100644 (file)
--- a/samples/font/font.cpp
+++ b/samples/font/font.cpp
@@ -107,6 +107,7 @@ public:
     void OnSlant(wxCommandEvent& event);
 
     void OnUnderline(wxCommandEvent& event);
+    void OnStrikethrough(wxCommandEvent& event);
 
     void OnwxPointerFont(wxCommandEvent& event);
     void OnwxSystemSettingsFont(wxCommandEvent& event);
@@ -178,6 +179,7 @@ enum
     Font_Slant,
 
     Font_Underlined,
+    Font_Strikethrough,
 
     // standard global wxFont objects:
     Font_wxNORMAL_FONT,
@@ -231,6 +233,7 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
     EVT_MENU(Font_Slant, MyFrame::OnSlant)
 
     EVT_MENU(Font_Underlined, MyFrame::OnUnderline)
+    EVT_MENU(Font_Strikethrough, MyFrame::OnStrikethrough)
 
     EVT_MENU(Font_wxNORMAL_FONT, MyFrame::OnwxPointerFont)
     EVT_MENU(Font_wxSMALL_FONT, MyFrame::OnwxPointerFont)
@@ -282,9 +285,8 @@ bool MyApp::OnInit()
     MyFrame *frame = new MyFrame(wxT("Font wxWidgets demo"),
                                  wxPoint(50, 50), wxSize(600, 400));
 
-    // Show it and tell the application that it's our main window
+    // Show it
     frame->Show(true);
-    SetTopWindow(frame);
 
     // success: wxApp::OnRun() will be called which will enter the main message
     // loop and the application will run. If we returned 'false' here, the
@@ -312,7 +314,7 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
     menuFile->Append(Font_ViewMsg, wxT("&View...\tCtrl-V"),
                      wxT("View an email message file"));
     menuFile->AppendSeparator();
-    menuFile->Append(Font_About, wxT("&About...\tCtrl-A"), wxT("Show about dialog"));
+    menuFile->Append(Font_About, wxT("&About\tCtrl-A"), wxT("Show about dialog"));
     menuFile->AppendSeparator();
     menuFile->Append(Font_Quit, wxT("E&xit\tAlt-X"), wxT("Quit this program"));
 
@@ -331,6 +333,8 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
     menuFont->AppendSeparator();
     menuFont->AppendCheckItem(Font_Underlined, wxT("&Underlined\tCtrl-U"),
                               wxT("Toggle underlined state"));
+    menuFont->AppendCheckItem(Font_Strikethrough, wxT("&Strikethrough"),
+                              wxT("Toggle strikethrough state"));
 
     menuFont->AppendSeparator();
     menuFont->Append(Font_SetNativeDesc,
@@ -554,7 +558,7 @@ void MyFrame::OnSetNativeDesc(wxCommandEvent& WXUNUSED(event))
 
     wxFont font;
     font.SetNativeFontInfo(fontInfo);
-    if ( !font.Ok() )
+    if ( !font.IsOk() )
     {
         wxLogError(wxT("Font info string \"%s\" is invalid."),
                    fontInfo.c_str());
@@ -577,12 +581,12 @@ void MyFrame::OnSetNativeUserDesc(wxCommandEvent& WXUNUSED(event))
     wxFont font;
     if (font.SetNativeFontInfoUserDesc(fontUserInfo))
     {
-        wxASSERT_MSG(font.Ok(), wxT("The font should now be valid"));
+        wxASSERT_MSG(font.IsOk(), wxT("The font should now be valid"));
         DoChangeFont(font);
     }
     else
     {
-        wxASSERT_MSG(!font.Ok(), wxT("The font should now be invalid"));
+        wxASSERT_MSG(!font.IsOk(), wxT("The font should now be invalid"));
         wxMessageBox(wxT("Error trying to create a font with such description..."));
     }
 }
@@ -609,12 +613,12 @@ void MyFrame::OnSetFaceName(wxCommandEvent& WXUNUSED(event))
     wxFont font(GetCanvas()->GetTextFont());
     if (font.SetFaceName(newFaceName))      // change facename only
     {
-        wxASSERT_MSG(font.Ok(), wxT("The font should now be valid"));
+        wxASSERT_MSG(font.IsOk(), wxT("The font should now be valid"));
         DoChangeFont(font);
     }
     else
     {
-        wxASSERT_MSG(!font.Ok(), wxT("The font should now be invalid"));
+        wxASSERT_MSG(!font.IsOk(), wxT("The font should now be invalid"));
         wxMessageBox(wxT("There is no font with such face name..."),
                      wxT("Invalid face name"), wxOK|wxICON_ERROR, this);
     }
@@ -736,6 +740,13 @@ void MyFrame::OnUnderline(wxCommandEvent& event)
     DoChangeFont(font);
 }
 
+void MyFrame::OnStrikethrough(wxCommandEvent& event)
+{
+    wxFont font = m_canvas->GetTextFont();
+    font.SetStrikethrough(event.IsChecked());
+    DoChangeFont(font);
+}
+
 void MyFrame::OnwxPointerFont(wxCommandEvent& event)
 {
     wxFont font;
@@ -807,13 +818,14 @@ void MyFrame::OnwxSystemSettingsFont(wxCommandEvent& event)
 void MyFrame::DoChangeFont(const wxFont& font, const wxColour& col)
 {
     m_canvas->SetTextFont(font);
-    if ( col.Ok() )
+    if ( col.IsOk() )
         m_canvas->SetColour(col);
     m_canvas->Refresh();
 
     m_textctrl->SetFont(font);
-    if ( col.Ok() )
+    if ( col.IsOk() )
         m_textctrl->SetForegroundColour(col);
+    m_textctrl->Refresh();
 
     // update the state of the bold/italic/underlined menu items
     wxMenuBar *mbar = GetMenuBar();
@@ -828,6 +840,7 @@ void MyFrame::DoChangeFont(const wxFont& font, const wxColour& col)
 #endif
 
         mbar->Check(Font_Underlined, font.GetUnderlined());
+        mbar->Check(Font_Strikethrough, font.GetStrikethrough());
     }
 }
 
@@ -969,7 +982,7 @@ void MyFrame::OnViewMsg(wxCommandEvent& WXUNUSED(event))
                     wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL,
                     wxFONTWEIGHT_NORMAL, false /* !underlined */,
                     wxEmptyString /* facename */, fontenc);
-        if ( font.Ok() )
+        if ( font.IsOk() )
         {
             DoChangeFont(font);
         }
@@ -1010,7 +1023,7 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
     PrepareDC(dc);
 
     // set background
-    dc.SetBackground(wxBrush(wxT("white"), wxSOLID));
+    dc.SetBackground(*wxWHITE_BRUSH);
     dc.Clear();
     dc.SetFont(m_font);
 
@@ -1048,7 +1061,7 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
     dc.DrawText(fontInfo, x, y);
     y += hLine;
 
-    if ( m_font.Ok() )
+    if ( m_font.IsOk() )
     {
         const wxNativeFontInfo *info = m_font.GetNativeFontInfo();
         if ( info )
@@ -1092,7 +1105,7 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
     }
 
     // draw the lines between them
-    dc.SetPen(wxPen(wxColour(wxT("blue")), 1, wxSOLID));
+    dc.SetPen(*wxBLUE_PEN);
     int l;
 
     // horizontal