don't save the initial selection if it's invalid in CBN_DROPDOWN (refixes #8474 witho...

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

diff --git a/src/gtk/slider.cpp b/src/gtk/slider.cpp
index c0e286da94a3759a41debc24e8f09c99e677af62..b2a24b3640b0de11ef788da6345d9ba2e37fb2bd 100644 (file)
--- a/src/gtk/slider.cpp
+++ b/src/gtk/slider.cpp
@@ -46,7 +46,7 @@ ProcessScrollEvent(wxSlider *win, wxEventType evtType)
     {
         wxScrollEvent event( evtType, win->GetId(), value, orient );
         event.SetEventObject( win );
-        win->GetEventHandler()->ProcessEvent( event );
+        win->HandleWindowEvent( event );
     }
 
     // but, in any case, except if we're dragging the slider (and so the change
@@ -55,14 +55,14 @@ ProcessScrollEvent(wxSlider *win, wxEventType evtType)
     {
         wxScrollEvent event(wxEVT_SCROLL_CHANGED, win->GetId(), value, orient);
         event.SetEventObject( win );
-        win->GetEventHandler()->ProcessEvent( event );
+        win->HandleWindowEvent( event );
     }
 
     // and also generate a command event for compatibility
     wxCommandEvent event( wxEVT_COMMAND_SLIDER_UPDATED, win->GetId() );
     event.SetEventObject( win );
     event.SetInt( value );
-    win->GetEventHandler()->ProcessEvent( event );
+    win->HandleWindowEvent( event );
 }
 
 static inline wxEventType GtkScrollTypeToWx(int scrollType)
@@ -277,7 +277,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxSlider,wxControl)
 wxSlider::wxSlider()
 {
     m_pos = 0;
-    m_scrollEventType = 0;
+    m_scrollEventType = GTK_SCROLL_NONE;
     m_needThumbRelease = false;
     m_blockScrollEvent = false;
 }
@@ -293,6 +293,9 @@ bool wxSlider::Create(wxWindow *parent,
                       const wxValidator& validator,
                       const wxString& name)
 {
+    m_pos = value;
+    m_scrollEventType = GTK_SCROLL_NONE;
+
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))
     {
@@ -304,6 +307,7 @@ bool wxSlider::Create(wxWindow *parent,
         m_widget = gtk_vscale_new( (GtkAdjustment *) NULL );
     else
         m_widget = gtk_hscale_new( (GtkAdjustment *) NULL );
+    g_object_ref(m_widget);
 
     gtk_scale_set_draw_value(GTK_SCALE (m_widget), (style & wxSL_LABELS) != 0);
     // Keep full precision in position value
@@ -317,13 +321,14 @@ bool wxSlider::Create(wxWindow *parent,
     g_signal_connect(m_widget, "move_slider", G_CALLBACK(gtk_move_slider), this);
     g_signal_connect(m_widget, "format_value", G_CALLBACK(gtk_format_value), NULL);
     g_signal_connect(m_widget, "value_changed", G_CALLBACK(gtk_value_changed), this);
-    gulong handler_id;
-    handler_id = g_signal_connect(
-        m_widget, "event_after", G_CALLBACK(gtk_event_after), this);
+    gulong handler_id = g_signal_connect(m_widget, "event_after", G_CALLBACK(gtk_event_after), this);
     g_signal_handler_block(m_widget, handler_id);
 
     SetRange( minValue, maxValue );
-    SetValue( value );
+
+    // don't call the public SetValue() as it won't do anything unless the
+    // value really changed
+    GTKSetValue( value );
 
     m_parent->DoAddChild( this );
 
@@ -340,16 +345,21 @@ int wxSlider::GetValue() const
 void wxSlider::SetValue( int value )
 {
     if (GetValue() != value)
-    {
-        m_blockScrollEvent = true;
-        gtk_range_set_value(GTK_RANGE (m_widget), value);
-        m_blockScrollEvent = false;
-    }
+        GTKSetValue(value);
+}
+
+void wxSlider::GTKSetValue(int value)
+{
+    m_blockScrollEvent = true;
+    gtk_range_set_value(GTK_RANGE (m_widget), value);
+    m_blockScrollEvent = false;
 }
 
 void wxSlider::SetRange( int minValue, int maxValue )
 {
     m_blockScrollEvent = true;
+    if (minValue == maxValue)
+       maxValue++;
     gtk_range_set_range(GTK_RANGE (m_widget), minValue, maxValue);
     gtk_range_set_increments(GTK_RANGE (m_widget), 1, (maxValue - minValue + 9) / 10);
     m_blockScrollEvent = false;