Add wxTextEntry::ForceUpper()

Allow automatically converting lower-case letters entered into wxTextCtrl to
upper-case equivalents. Provide generic fallback and implement the method
natively for all the major platforms.

Also update the text sample to show it in action.

include/wx/gtk/textentry.h

@@ -21,7 +21,7 @@ typedef struct _GtkEntry GtkEntry;
 class WXDLLIMPEXP_CORE wxTextEntry : public wxTextEntryBase
 {
 public:
-    wxTextEntry() { }
+    wxTextEntry() { m_isUpperCase = false; }
 
     // implement wxTextEntryBase pure virtual methods
     virtual void WriteText(const wxString& text) wxOVERRIDE;
@@ -47,6 +47,7 @@ public:
     virtual void SetEditable(bool editable) wxOVERRIDE;
 
     virtual void SetMaxLength(unsigned long len) wxOVERRIDE;
+    virtual void ForceUpper() wxOVERRIDE;
 
 #ifdef __WXGTK3__
     virtual bool SetHint(const wxString& hint) wxOVERRIDE;
@@ -56,6 +57,7 @@ public:
     // implementation only from now on
     void SendMaxLenEvent();
     bool GTKEntryOnInsertText(const char* text);
+    bool GTKIsUpperCase() const { return m_isUpperCase; }
 
 protected:
     // This method must be called from the derived class Create() to connect
@@ -85,7 +87,12 @@ private:
 
     // implement this to return the associated GtkEntry
     virtual GtkEntry *GetEntry() const = 0;
+
+    bool m_isUpperCase;
 };
 
+// We don't need the generic version.
+#define wxHAS_NATIVE_TEXT_FORCEUPPER
+
 #endif // _WX_GTK_TEXTENTRY_H_
 

include/wx/msw/textentry.h

@@ -47,6 +47,7 @@ public:
     virtual void SetEditable(bool editable);
 
     virtual void SetMaxLength(unsigned long len);
+    virtual void ForceUpper();
 
 #if wxUSE_UXTHEME
     virtual bool SetHint(const wxString& hint);
@@ -98,5 +99,8 @@ private:
 #endif // wxUSE_OLE
 };
 
+// We don't need the generic version.
+#define wxHAS_NATIVE_TEXT_FORCEUPPER
+
 #endif // _WX_MSW_TEXTENTRY_H_
 

include/wx/osx/cocoa/private/textimpl.h

@@ -14,6 +14,8 @@
 #include "wx/combobox.h"
 #include "wx/osx/private.h"
 
+@class wxTextEntryFormatter;
+
 // implementation exposed, so that search control can pull it
 
 class wxNSTextFieldControl : public wxWidgetCocoaImpl, public wxTextWidgetImpl
@@ -29,7 +31,10 @@ public :
 
     virtual bool CanClipMaxLength() const { return true; }
     virtual void SetMaxLength(unsigned long len);
-        
+
+    virtual bool CanForceUpper() { return true; }
+    virtual void ForceUpper();
+
     virtual wxString GetStringValue() const ;
     virtual void SetStringValue( const wxString &str) ;
     virtual void Copy() ;
@@ -57,6 +62,9 @@ protected :
 private:
     // Common part of both ctors.
     void Init(WXWidget w);
+
+    // Get our formatter, creating it if necessary.
+    wxTextEntryFormatter* GetFormatter();
 };
 
 class wxNSTextViewControl : public wxWidgetCocoaImpl, public wxTextWidgetImpl

include/wx/osx/core/private.h

@@ -655,7 +655,10 @@ public :
 
     virtual bool CanClipMaxLength() const { return false; }
     virtual void SetMaxLength(unsigned long WXUNUSED(len)) {}
-    
+
+    virtual bool CanForceUpper() { return false; }
+    virtual void ForceUpper() {}
+
     virtual bool GetStyle( long position, wxTextAttr& style);
     virtual void SetStyle( long start, long end, const wxTextAttr& style ) ;
     virtual void Copy() ;

include/wx/osx/textentry.h

@@ -50,6 +50,8 @@ public:
     // in a single line text control
     virtual void SetMaxLength(unsigned long len);
 
+    virtual void ForceUpper();
+
     // writing text inserts it at the current position;
     // appending always inserts it at the end
     virtual void WriteText(const wxString& text);

include/wx/textentry.h

@@ -138,10 +138,16 @@ public:
     virtual void SetEditable(bool editable) = 0;
 
 
+    // input restrictions
+    // ------------------
+
     // set the max number of characters which may be entered in a single line
     // text control
     virtual void SetMaxLength(unsigned long WXUNUSED(len)) { }
 
+    // convert any lower-case characters to upper-case on the fly in this entry
+    virtual void ForceUpper();
+
 
     // hints
     // -----
@@ -208,6 +214,10 @@ public:
             SuppressTextChangedEvents();
     }
 
+    // change the entry value to be in upper case only, if needed (i.e. if it's
+    // not already the case)
+    void ConvertToUpperCase();
+
 protected:
     // flags for DoSetValue(): common part of SetValue() and ChangeValue() and
     // also used to implement WriteText() in wxMSW