Add demonstration of a few more wxRenderer methods.

[wxWidgets.git] / include / wx / textentry.h

diff --git a/include/wx/textentry.h b/include/wx/textentry.h
index 9ebbdeb5bcc136a040c6344d9898f608abac22fd..130446a4a316071a6b06fe17ed5d00eba0ab0982 100644 (file)
--- a/include/wx/textentry.h
+++ b/include/wx/textentry.h
@@ -15,6 +15,12 @@
 // and should probably be replaced with int anyhow)
 typedef long wxTextPos;
 
+class WXDLLIMPEXP_FWD_BASE wxArrayString;
+class WXDLLIMPEXP_FWD_CORE wxTextEntryHintData;
+class WXDLLIMPEXP_FWD_CORE wxWindow;
+
+#include "wx/gdicmn.h"              // for wxPoint
+
 // ----------------------------------------------------------------------------
 // wxTextEntryBase
 // ----------------------------------------------------------------------------
@@ -22,8 +28,8 @@ typedef long wxTextPos;
 class WXDLLIMPEXP_CORE wxTextEntryBase
 {
 public:
-    wxTextEntryBase() { m_eventsBlock = 0; }
-    virtual ~wxTextEntryBase() { }
+    wxTextEntryBase() { m_eventsBlock = 0; m_hintData = NULL; }
+    virtual ~wxTextEntryBase();
 
 
     // accessing the value
@@ -41,9 +47,9 @@ public:
     virtual void WriteText(const wxString& text) = 0;
     virtual void AppendText(const wxString& text);
 
-    virtual wxString GetValue() const = 0;
+    virtual wxString GetValue() const;
     virtual wxString GetRange(long from, long to) const;
-    bool IsEmpty() const { return GetValue().empty(); }
+    bool IsEmpty() const { return GetLastPosition() <= 0; }
 
 
     // editing operations
@@ -52,6 +58,7 @@ public:
     virtual void Replace(long from, long to, const wxString& value);
     virtual void Remove(long from, long to) = 0;
     virtual void Clear() { SetValue(wxString()); }
+    void RemoveSelection();
 
 
     // clipboard operations
@@ -89,14 +96,34 @@ public:
     // ---------
 
     virtual void SetSelection(long from, long to) = 0;
-    virtual void SelectAll() { SetSelection(0, GetLastPosition()); }
+    virtual void SelectAll() { SetSelection(-1, -1); }
     virtual void GetSelection(long *from, long *to) const = 0;
     bool HasSelection() const;
     virtual wxString GetStringSelection() const;
 
 
+    // auto-completion
+    // ---------------
+
+    // these functions allow to auto-complete the text already entered into the
+    // control using either the given fixed list of strings, the paths from the
+    // file system or, in the future, an arbitrary user-defined completer
+    //
+    // they all return true if completion was enabled or false on error (most
+    // commonly meaning that this functionality is not available under the
+    // current platform)
+
+    virtual bool AutoComplete(const wxArrayString& WXUNUSED(choices))
+    {
+        return false;
+    }
+
+    virtual bool AutoCompleteFileNames() { return false; }
+
+
     // status
     // ------
+
     virtual bool IsEditable() const = 0;
     virtual void SetEditable(bool editable) = 0;
 
@@ -106,6 +133,31 @@ public:
     virtual void SetMaxLength(unsigned long WXUNUSED(len)) { }
 
 
+    // hints
+    // -----
+
+    // hint is the (usually greyed out) text shown in the control as long as
+    // it's empty and doesn't have focus, it is typically used in controls used
+    // for searching to let the user know what is supposed to be entered there
+
+    virtual bool SetHint(const wxString& hint);
+    virtual wxString GetHint() const;
+
+
+    // margins
+    // -------
+
+    // margins are the empty space between borders of control and the text
+    // itself. When setting margin, use value -1 to indicate that specific
+    // margin should not be changed.
+
+    bool SetMargins(const wxPoint& pt)
+        { return DoSetMargins(pt); }
+    bool SetMargins(wxCoord left, wxCoord top = -1)
+        { return DoSetMargins(wxPoint(left, top)); }
+    wxPoint GetMargins() const
+        { return DoGetMargins(); }
+
 protected:
     // flags for DoSetValue(): common part of SetValue() and ChangeValue() and
     // also used to implement WriteText() in wxMSW
@@ -117,6 +169,16 @@ protected:
     };
 
     virtual void DoSetValue(const wxString& value, int flags);
+    virtual wxString DoGetValue() const = 0;
+
+    // override this to return the associated window, it will be used for event
+    // generation and also by generic hints implementation
+    virtual wxWindow *GetEditableWindow() = 0;
+
+    // margins functions
+    virtual bool DoSetMargins(const wxPoint& pt);
+    virtual wxPoint DoGetMargins() const;
+
 
     // class which should be used to temporarily disable text change events
     //
@@ -125,13 +187,11 @@ protected:
     {
     public:
         EventsSuppressor(wxTextEntryBase *text, bool suppress = true)
+            : m_text(text),
+              m_suppress(suppress)
         {
-            m_suppress = suppress;
             if ( m_suppress )
-            {
-                m_text = text;
                 m_text->SuppressTextChangedEvents();
-            }
         }
 
         ~EventsSuppressor()
@@ -144,6 +204,7 @@ protected:
         wxTextEntryBase *m_text;
         bool m_suppress;
     };
+
     friend class EventsSuppressor;
 
     // return true if the events are currently not suppressed
@@ -174,6 +235,9 @@ private:
 
     // if this counter is non-null, events are blocked
     unsigned m_eventsBlock;
+
+    // hint-related stuff, only allocated if/when SetHint() is used
+    wxTextEntryHintData *m_hintData;
 };
 
 #ifdef __WXUNIVERSAL__
@@ -186,6 +250,10 @@ private:
     #include "wx/gtk/textentry.h"
 #elif defined(__WXMSW__)
     #include "wx/msw/textentry.h"
+#elif defined(__WXMOTIF__)
+    #include "wx/motif/textentry.h"
+#elif defined(__WXPM__)
+    #include "wx/os2/textentry.h"
 #else
     // no platform-specific implementation of wxTextEntry yet
     class WXDLLIMPEXP_CORE wxTextEntry : public wxTextEntryBase