document IsEmpty()

[wxWidgets.git] / src / gtk / textctrl.cpp

diff --git a/src/gtk/textctrl.cpp b/src/gtk/textctrl.cpp
index 79cdce64654dd503464221035182b0f73086c281..0638f5c1fa9885d1451cfc716e2d6a0235d06ff0 100644 (file)
--- a/src/gtk/textctrl.cpp
+++ b/src/gtk/textctrl.cpp
@@ -448,9 +448,7 @@ gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
     if ( win->MarkDirtyOnChange() )
         win->MarkDirty();
 
-    wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
-    event.SetEventObject( win );
-    win->GetEventHandler()->ProcessEvent( event );
+    win->SendTextUpdatedEvent();
 }
 }
 
@@ -544,9 +542,10 @@ END_EVENT_TABLE()
 void wxTextCtrl::Init()
 {
     m_dontMarkDirty =
-    m_ignoreNextUpdate =
     m_modified = false;
 
+    m_countUpdatesToIgnore = 0;
+
     SetUpdateFont(false);
 
     m_text = NULL;
@@ -820,7 +819,15 @@ wxFontEncoding wxTextCtrl::GetTextEncoding() const
     return enc;
 }
 
-void wxTextCtrl::SetValue( const wxString &value )
+bool wxTextCtrl::IsEmpty() const
+{
+    if ( IsMultiLine() )
+        return gtk_text_buffer_get_char_count(m_buffer) != 0;
+
+    return wxTextCtrlBase::IsEmpty();
+}
+
+void wxTextCtrl::DoSetValue( const wxString &value, int flags )
 {
     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 
@@ -831,31 +838,31 @@ void wxTextCtrl::SetValue( const wxString &value )
     m_modified = false;
     DontMarkDirtyOnNextChange();
 
-    if ( IsMultiLine() )
+    const wxCharBuffer buffer(wxGTK_CONV_ENC(value, GetTextEncoding()));
+    if ( !buffer )
     {
-        const wxCharBuffer buffer(wxGTK_CONV_ENC(value, GetTextEncoding()));
-        if ( !buffer )
-        {
-            // see comment in WriteText() as to why we must warn the user about
-            // this
-            wxLogWarning(_("Failed to set text in the text control."));
-            return;
-        }
+        // see comment in WriteText() as to why we must warn the user about
+        // this
+        wxLogWarning(_("Failed to set text in the text control."));
+        return;
+    }
 
-        if (gtk_text_buffer_get_char_count(m_buffer) != 0)
-            IgnoreNextTextUpdate();
+    // if the control is not empty, two "changed" signals are emitted,
+    // otherwise only one and we need to ignore either both or one of them
+    int ignore = flags & SetValue_SendEvent ? 0 : 1;
+    if ( !IsEmpty() )
+        ignore++;
 
+    if ( ignore )
+        IgnoreNextTextUpdate(ignore);
+
+    if ( IsMultiLine() )
+    {
         gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
     }
     else // single line
     {
-        // gtk_entry_set_text() emits two "changed" signals if the control is
-        // not empty because internally it calls gtk_editable_delete_text() and
-        // gtk_editable_insert_text() but we want to have only one event
-        if ( !GetValue().empty() )
-            IgnoreNextTextUpdate();
-
-        gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV(value) );
+        gtk_entry_set_text( GTK_ENTRY(m_text), buffer );
     }
 
     // GRG, Jun/2000: Changed this after a lot of discussion in
@@ -1178,9 +1185,9 @@ void wxTextCtrl::DiscardEdits()
 
 bool wxTextCtrl::IgnoreTextUpdate()
 {
-    if ( m_ignoreNextUpdate )
+    if ( m_countUpdatesToIgnore > 0 )
     {
-        m_ignoreNextUpdate = false;
+        m_countUpdatesToIgnore--;
 
         return true;
     }