fixed memory allocation code of wxStreamBuffer to not realloc() new[]ed memory any...

[wxWidgets.git] / src / gtk1 / textctrl.cpp

diff --git a/src/gtk1/textctrl.cpp b/src/gtk1/textctrl.cpp
index e832dcdf05704efc246545ba426a6e515d07878c..64c069e006a5a8e0408ec45c77b629d570c91a5a 100644 (file)
--- a/src/gtk1/textctrl.cpp
+++ b/src/gtk1/textctrl.cpp
@@ -51,6 +51,7 @@ gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
         wxapp_install_idle_handler();
 
     win->SetModified();
+    win->UpdateFontIfNeeded();
 
     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
     event.SetString( win->GetValue() );
@@ -95,9 +96,12 @@ BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 END_EVENT_TABLE()
 
-wxTextCtrl::wxTextCtrl()
+void wxTextCtrl::Init()
 {
     m_modified = FALSE;
+    m_updateFont = FALSE;
+    m_text =
+    m_vScrollbar = (GtkWidget *)NULL;
 }
 
 wxTextCtrl::wxTextCtrl( wxWindow *parent,
@@ -109,7 +113,8 @@ wxTextCtrl::wxTextCtrl( wxWindow *parent,
                         const wxValidator& validator,
                         const wxString &name )
 {
-    m_modified = FALSE;
+    Init();
+
     Create( parent, id, value, pos, size, style, validator, name );
 }
 
@@ -192,20 +197,21 @@ bool wxTextCtrl::Create( wxWindow *parent,
           m_text = gtk_entry_new();
     }
 
-    wxSize new_size = size,
-           sizeBest = DoGetBestSize();
+    m_parent->DoAddChild( this );
+
+    PostCreation();
+
+    SetFont( parent->GetFont() );
+
+    wxSize size_best( DoGetBestSize() );
+    wxSize new_size( size );
     if (new_size.x == -1)
-        new_size.x = sizeBest.x;
+        new_size.x = size_best.x;
     if (new_size.y == -1)
-        new_size.y = sizeBest.y;
-
+        new_size.y = size_best.y;
     if ((new_size.x != size.x) || (new_size.y != size.y))
         SetSize( new_size.x, new_size.y );
 
-    m_parent->DoAddChild( this );
-
-    PostCreation();
-
     if (multi_line)
         gtk_widget_show(m_text);
 
@@ -318,24 +324,29 @@ void wxTextCtrl::SetValue( const wxString &value )
 {
     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 
-    wxString tmp = wxT("");
-    if (!value.IsNull()) tmp = value;
     if (m_windowStyle & wxTE_MULTILINE)
     {
         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
         len = 0;
 #if wxUSE_UNICODE
-        wxWX2MBbuf tmpbuf = tmp.mbc_str();
+        wxWX2MBbuf tmpbuf = value.mbc_str();
         gtk_editable_insert_text( GTK_EDITABLE(m_text), tmpbuf, strlen(tmpbuf), &len );
 #else
-        gtk_editable_insert_text( GTK_EDITABLE(m_text), tmp.mbc_str(), tmp.Length(), &len );
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
 #endif
     }
     else
     {
-        gtk_entry_set_text( GTK_ENTRY(m_text), tmp.mbc_str() );
+        gtk_entry_set_text( GTK_ENTRY(m_text), value.mbc_str() );
     }
+
+    // GRG, Jun/2000: Changed this after a lot of discussion in
+    //   the lists. wxWindows 2.2 will have a set of flags to
+    //   customize this behaviour.
+    SetInsertionPoint(0);
+
+    m_modified = FALSE;
 }
 
 void wxTextCtrl::WriteText( const wxString &text )
@@ -606,6 +617,26 @@ void wxTextCtrl::SetEditable( bool editable )
         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 }
 
+bool wxTextCtrl::Enable( bool enable )
+{
+    if (!wxWindowBase::Enable(enable))
+    {
+        // nothing to do
+        return FALSE;
+    }
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        gtk_text_set_editable( GTK_TEXT(m_text), enable );
+    }
+    else
+    {
+        gtk_widget_set_sensitive( m_text, enable );
+    }
+
+    return TRUE;
+}
+
 void wxTextCtrl::DiscardEdits()
 {
     m_modified = FALSE;
@@ -714,7 +745,7 @@ bool wxTextCtrl::CanCut() const
     // Can cut if there's a selection
     long from, to;
     GetSelection(& from, & to);
-    return (from != to) ;
+    return (from != to) && (IsEditable());
 }
 
 bool wxTextCtrl::CanPaste() const
@@ -757,8 +788,9 @@ void wxTextCtrl::GetSelection(long* from, long* to) const
 
     if (!(GTK_EDITABLE(m_text)->has_selection))
     {
-        if (from) *from = 0;
-        if (to)   *to = 0;
+        long i = GetInsertionPoint();
+        if (from) *from = i;
+        if (to)   *to = i;
         return;
     }
 
@@ -791,6 +823,7 @@ void wxTextCtrl::OnChar( wxKeyEvent &key_event )
     {
         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
         event.SetEventObject(this);
+        event.SetString(GetValue());
         if (GetEventHandler()->ProcessEvent(event)) return;
     }
 
@@ -837,20 +870,37 @@ bool wxTextCtrl::SetFont( const wxFont &font )
 
     if ( m_windowStyle & wxTE_MULTILINE )
     {
-        // for compatibility with other ports: the font is a global controls
-        // characteristic, so change the font globally
-        wxString value = GetValue();
-        if ( !value.IsEmpty() )
-        {
-            Clear();
+        m_updateFont = TRUE;
 
-            AppendText(value);
-        }
+        ChangeFontGlobally();
     }
 
     return TRUE;
 }
 
+void wxTextCtrl::ChangeFontGlobally()
+{
+    // this method is very inefficient and hence should be called as rarely as
+    // possible!
+    wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
+                  _T("shouldn't be called for single line controls") );
+
+    wxString value = GetValue();
+    if ( !value.IsEmpty() )
+    {
+        Clear();
+        AppendText(value);
+
+        m_updateFont = FALSE;
+    }
+}
+
+void wxTextCtrl::UpdateFontIfNeeded()
+{
+    if ( m_updateFont )
+        ChangeFontGlobally();
+}
+
 bool wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
 {
     wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );