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
class WXDLLIMPEXP_CORE wxTextEntryBase
{
public:
- wxTextEntryBase() { m_eventsBlock = 0; }
- virtual ~wxTextEntryBase() { }
+ wxTextEntryBase() { m_eventsBlock = 0; m_hintData = NULL; }
+ virtual ~wxTextEntryBase();
// accessing the value
// SetValue() generates a text change event, ChangeValue() doesn't
virtual void SetValue(const wxString& value)
{ DoSetValue(value, SetValue_SendEvent); }
- virtual void ChangeValue(const wxString& value)
- { DoSetValue(value, SetValue_NoEvent); }
+ virtual void ChangeValue(const wxString& value);
// writing text inserts it at the current position replacing any current
// selection, appending always inserts it at the end and doesn't remove any
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
// ---------
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;
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(); }
+
+
+ // implementation only
+ // -------------------
+
+ // generate the wxEVT_COMMAND_TEXT_UPDATED event for GetEditableWindow(),
+ // like SetValue() does and return true if the event was processed
+ //
+ // NB: this is public for wxRichTextCtrl use only right now, do not call it
+ static bool SendTextUpdatedEvent(wxWindow *win);
+
+ // generate the wxEVT_COMMAND_TEXT_UPDATED event for this window
+ bool SendTextUpdatedEvent()
+ {
+ return SendTextUpdatedEvent(GetEditableWindow());
+ }
+
+
+ // generate the wxEVT_COMMAND_TEXT_UPDATED event for this window if the
+ // events are not currently disabled
+ void SendTextUpdatedEventIfAllowed()
+ {
+ if ( EventsAllowed() )
+ SendTextUpdatedEvent();
+ }
+
+ // this function is provided solely for the purpose of forwarding text
+ // change notifications state from one control to another, e.g. it can be
+ // used by a wxComboBox which derives from wxTextEntry if it delegates all
+ // of its methods to another wxTextCtrl
+ void ForwardEnableTextChangedEvents(bool enable)
+ {
+ // it's important to call the functions which update m_eventsBlock here
+ // and not just our own EnableTextChangedEvents() because our state
+ // (i.e. the result of EventsAllowed()) must change as well
+ if ( enable )
+ ResumeTextChangedEvents();
+ else
+ SuppressTextChangedEvents();
+ }
+
protected:
// flags for DoSetValue(): common part of SetValue() and ChangeValue() and
// also used to implement WriteText() in wxMSW
};
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
//
friend class EventsSuppressor;
- // return true if the events are currently not suppressed
- bool EventsAllowed() const { return m_eventsBlock == 0; }
-
private:
// suppress or resume the text changed events generation: don't use these
// functions directly, use EventsSuppressor class above instead
// initially the generation of the events is enabled
virtual void EnableTextChangedEvents(bool WXUNUSED(enable)) { }
+ // return true if the events are currently not suppressed
+ bool EventsAllowed() const { return m_eventsBlock == 0; }
+
+
// 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;
+
+ // It needs to call our Do{Get,Set}Value() to work with the real control
+ // contents.
+ friend class wxTextEntryHintData;
};
#ifdef __WXUNIVERSAL__
};
#elif defined(__WXGTK20__)
#include "wx/gtk/textentry.h"
+#elif defined(__WXMAC__)
+ #include "wx/osx/textentry.h"
#elif defined(__WXMSW__)
#include "wx/msw/textentry.h"
#elif defined(__WXMOTIF__)
projects / wxWidgets.git / blobdiff