#include "wx/textentry.h"
#include "wx/clipbrd.h"
+// ----------------------------------------------------------------------------
+// wxTextEntryHintData
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxTextEntryHintData wxBIND_OR_CONNECT_HACK_ONLY_BASE_CLASS
+{
+public:
+ wxTextEntryHintData(wxTextEntryBase *entry, wxWindow *win)
+ : m_entry(entry),
+ m_win(win)
+ {
+ wxBIND_OR_CONNECT_HACK(win, wxEVT_SET_FOCUS, wxFocusEventHandler,
+ wxTextEntryHintData::OnSetFocus, this);
+ wxBIND_OR_CONNECT_HACK(win, wxEVT_KILL_FOCUS, wxFocusEventHandler,
+ wxTextEntryHintData::OnKillFocus, this);
+
+ // we don't have any hint yet
+ m_showsHint = false;
+ }
+
+ // default dtor is ok
+
+ // are we showing the hint right now?
+ bool ShowsHint() const { return m_showsHint; }
+
+ void SetHintString(const wxString& hint)
+ {
+ m_hint = hint;
+
+ if ( m_showsHint )
+ {
+ // update it immediately
+ m_entry->ChangeValue(hint);
+ }
+ //else: the new hint will be shown later
+ }
+
+ const wxString& GetHintString() const { return m_hint; }
+
+private:
+ void OnSetFocus(wxFocusEvent& event)
+ {
+ // hide the hint if we were showing it
+ if ( m_showsHint )
+ {
+ // Clear() would send an event which we don't want, so do it like
+ // this
+ m_entry->ChangeValue(wxString());
+ m_win->SetForegroundColour(m_colFg);
+
+ m_showsHint = false;
+ }
+
+ event.Skip();
+ }
+
+ void OnKillFocus(wxFocusEvent& event)
+ {
+ // restore the hint if the user didn't do anything in the control
+ if ( m_entry->IsEmpty() )
+ {
+ m_entry->ChangeValue(m_hint);
+
+ m_colFg = m_win->GetForegroundColour();
+ m_win->SetForegroundColour(*wxLIGHT_GREY);
+
+ m_showsHint = true;
+ }
+
+ event.Skip();
+ }
+
+ // the text control we're associated with (as its interface and its window)
+ wxTextEntryBase * const m_entry;
+ wxWindow * const m_win;
+
+ // the original foreground colour of m_win before we changed it
+ wxColour m_colFg;
+
+ // the hint passed to wxTextEntry::SetHint()
+ wxString m_hint;
+
+ // true if we're currently showing it, for this we must be empty and not
+ // have focus
+ bool m_showsHint;
+
+ wxDECLARE_NO_COPY_CLASS(wxTextEntryHintData);
+};
+
// ============================================================================
// wxTextEntryBase implementation
// ============================================================================
+wxTextEntryBase::~wxTextEntryBase()
+{
+ delete m_hintData;
+}
+
+// ----------------------------------------------------------------------------
+// text accessors
+// ----------------------------------------------------------------------------
+
+wxString wxTextEntryBase::GetValue() const
+{
+ return m_hintData && m_hintData->ShowsHint() ? wxString() : DoGetValue();
+}
+
wxString wxTextEntryBase::GetRange(long from, long to) const
{
wxString sel;
- if ( from < to )
+ wxString value = GetValue();
+
+ if ( from < to && (long)value.length() >= to )
{
- sel = GetValue().substr(from, to - from);
+ sel = value.substr(from, to - from);
}
return sel;
}
+// ----------------------------------------------------------------------------
+// text operations
+// ----------------------------------------------------------------------------
+
void wxTextEntryBase::AppendText(const wxString& text)
{
SetInsertionPointEnd();
SelectAll();
WriteText(value);
+
+ SetInsertionPoint(0);
}
void wxTextEntryBase::Replace(long from, long to, const wxString& value)
Remove(from, to);
}
+ SetInsertionPoint(from);
WriteText(value);
}
+// ----------------------------------------------------------------------------
+// selection
+// ----------------------------------------------------------------------------
+
bool wxTextEntryBase::HasSelection() const
{
long from, to;
return from < to;
}
+void wxTextEntryBase::RemoveSelection()
+{
+ long from, to;
+ GetSelection(& from, & to);
+ if (from != -1 && to != -1)
+ Remove(from, to);
+}
+
wxString wxTextEntryBase::GetStringSelection() const
{
long from, to;
return GetRange(from, to);
}
+// ----------------------------------------------------------------------------
+// clipboard
+// ----------------------------------------------------------------------------
+
bool wxTextEntryBase::CanCopy() const
{
return HasSelection();
return false;
}
+// ----------------------------------------------------------------------------
+// hints support
+// ----------------------------------------------------------------------------
+
+bool wxTextEntryBase::SetHint(const wxString& hint)
+{
+ if ( !m_hintData )
+ m_hintData = new wxTextEntryHintData(this, GetEditableWindow());
+
+ m_hintData->SetHintString(hint);
+
+ return true;
+}
+
+wxString wxTextEntryBase::GetHint() const
+{
+ return m_hintData ? m_hintData->GetHintString() : wxString();
+}
+
+// ----------------------------------------------------------------------------
+// margins support
+// ----------------------------------------------------------------------------
+
+bool wxTextEntryBase::DoSetMargins(const wxPoint& WXUNUSED(pt))
+{
+ return false;
+}
+
+wxPoint wxTextEntryBase::DoGetMargins() const
+{
+ return wxPoint(-1, -1);
+}
+
+// ----------------------------------------------------------------------------
+// events
+// ----------------------------------------------------------------------------
+
+/* static */
+bool wxTextEntryBase::SendTextUpdatedEvent(wxWindow *win)
+{
+ wxCHECK_MSG( win, false, "can't send an event without a window" );
+
+ wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, win->GetId());
+
+ // do not do this as it could be very inefficient if the text control
+ // contains a lot of text and we're not using ref-counted wxString
+ // implementation -- instead, event.GetString() will query the control for
+ // its current text if needed
+ //event.SetString(win->GetValue());
+
+ event.SetEventObject(win);
+ return win->HandleWindowEvent(event);
+}
+
#endif // wxUSE_TEXTCTRL || wxUSE_COMBOBOX
projects / wxWidgets.git / blobdiff