don't try to access empty wxIconBundle in gtk_frame_realized_callback

[wxWidgets.git] / src / msw / spinctrl.cpp

diff --git a/src/msw/spinctrl.cpp b/src/msw/spinctrl.cpp
index a5eb22d430d558d8f3be91c604fbfb522986dd79..bf56006adeb9112e990655a779bf561d7215eba1 100644 (file)
--- a/src/msw/spinctrl.cpp
+++ b/src/msw/spinctrl.cpp
@@ -29,12 +29,12 @@
 #include "wx/spinctrl.h"
 
 #ifndef WX_PRECOMP
+    #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
     #include "wx/event.h"
     #include "wx/textctrl.h"
 #endif
 
 #include "wx/msw/private.h"
-#include "wx/msw/wrapcctl.h"
 
 #if wxUSE_TOOLTIPS
     #include "wx/tooltip.h"
@@ -87,7 +87,7 @@ wxEND_FLAGS( wxSpinCtrlStyle )
 IMPLEMENT_DYNAMIC_CLASS_XTI(wxSpinCtrl, wxControl,"wx/spinbut.h")
 
 wxBEGIN_PROPERTIES_TABLE(wxSpinCtrl)
-    wxEVENT_RANGE_PROPERTY( Spin , wxEVT_SCROLL_TOP , wxEVT_SCROLL_ENDSCROLL , wxSpinEvent )
+    wxEVENT_RANGE_PROPERTY( Spin , wxEVT_SCROLL_TOP , wxEVT_SCROLL_CHANGED , wxSpinEvent )
     wxEVENT_PROPERTY( Updated , wxEVT_COMMAND_SPINCTRL_UPDATED , wxCommandEvent )
     wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent )
     wxEVENT_PROPERTY( TextEnter , wxEVT_COMMAND_TEXT_ENTER , wxCommandEvent )
@@ -111,7 +111,6 @@ wxCONSTRUCTOR_6( wxSpinCtrl , wxWindow* , Parent , wxWindowID , Id , wxString ,
 IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl, wxControl)
 #endif
 
-//pmg EVT_KILL_FOCUS
 BEGIN_EVENT_TABLE(wxSpinCtrl, wxSpinButton)
     EVT_CHAR(wxSpinCtrl::OnChar)
 
@@ -200,28 +199,14 @@ wxSpinCtrl *wxSpinCtrl::GetSpinForTextCtrl(WXHWND hwndBuddy)
 // process a WM_COMMAND generated by the buddy text control
 bool wxSpinCtrl::ProcessTextCommand(WXWORD cmd, WXWORD WXUNUSED(id))
 {
-    switch (cmd)
+    if ( cmd == EN_CHANGE )
     {
-    case EN_CHANGE:
-        {
-            wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
-            event.SetEventObject(this);
-            wxString val = wxGetWindowText(m_hwndBuddy);
-            event.SetString(val);
-            event.SetInt(GetValue());
-            return GetEventHandler()->ProcessEvent(event);
-        }
-    case EN_SETFOCUS:
-    case EN_KILLFOCUS:
-        {
-            wxFocusEvent event(cmd == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
-                    : wxEVT_SET_FOCUS,
-                    m_windowId);
-            event.SetEventObject( this );
-            return GetEventHandler()->ProcessEvent(event);
-        }
-     default:
-        break;
+        wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
+        event.SetEventObject(this);
+        wxString val = wxGetWindowText(m_hwndBuddy);
+        event.SetString(val);
+        event.SetInt(GetValue());
+        return GetEventHandler()->ProcessEvent(event);
     }
 
     // not processed
@@ -267,8 +252,8 @@ void wxSpinCtrl::OnChar(wxKeyEvent& event)
 
 void wxSpinCtrl::OnKillFocus(wxFocusEvent& event)
 {
-    // ensure that the value is shown correctly
-    SetValue(GetValue()) ;
+    // ensure that a correct value is shown by the control
+    NormalizeValue();
     event.Skip();
 }
 
@@ -281,6 +266,22 @@ void wxSpinCtrl::OnSetFocus(wxFocusEvent& event)
     event.Skip();
 }
 
+void wxSpinCtrl::NormalizeValue()
+{
+    const int value = GetValue();
+    const bool changed = value != m_oldValue;
+
+    // notice that we have to call SetValue() even if the value didn't change
+    // because otherwise we could be left with empty buddy control when value
+    // is 0, see comment in SetValue()
+    SetValue(value);
+
+    if ( changed )
+    {
+        SendSpinUpdate(value);
+    }
+}
+
 // ----------------------------------------------------------------------------
 // construction
 // ----------------------------------------------------------------------------
@@ -294,6 +295,11 @@ bool wxSpinCtrl::Create(wxWindow *parent,
                         int min, int max, int initial,
                         const wxString& name)
 {
+    // this should be in ctor/init function but I don't want to add one to 2.8
+    // to avoid problems with default ctor which can be inlined in the user
+    // code and so might not get this fix without recompilation
+    m_oldValue = INT_MIN;
+
     // before using DoGetBestSize(), have to set style to let the base class
     // know whether this is a horizontal or vertical control (we're always
     // vertical)
@@ -366,8 +372,7 @@ bool wxSpinCtrl::Create(wxWindow *parent,
         return false;
     }
 
-    SetRange(min, max);
-    SetValue(initial);
+    wxSpinButtonBase::SetRange(min, max);
 
     // subclass the text ctrl to be able to intercept some events
     wxSetWindowUserData(GetBuddyHwnd(), this);
@@ -389,16 +394,27 @@ bool wxSpinCtrl::Create(wxWindow *parent,
         sizeText.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
     }
 
-    SetBestSize(size);
+    SetInitialSize(size);
 
     (void)::ShowWindow(GetBuddyHwnd(), SW_SHOW);
 
     // associate the text window with the spin button
     (void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)m_hwndBuddy, 0);
 
+    SetValue(initial);
+
+    // Set the range in the native control
+    SetRange(min, max);
+
     if ( !value.empty() )
     {
         SetValue(value);
+        m_oldValue = (int) wxAtol(value);
+    }
+    else
+    {
+        SetValue(wxString::Format(wxT("%d"), initial));
+        m_oldValue = initial;
     }
 
     // do it after finishing with m_hwndBuddy creation to avoid generating
@@ -447,6 +463,8 @@ void  wxSpinCtrl::SetValue(int val)
         // current value in the control, so do it manually
         ::SetWindowText(GetBuddyHwnd(), wxString::Format(_T("%d"), val));
     }
+
+    m_oldValue = GetValue();
 }
 
 int wxSpinCtrl::GetValue() const
@@ -537,20 +555,26 @@ void wxSpinCtrl::DoSetToolTip(wxToolTip *tip)
 #endif // wxUSE_TOOLTIPS
 
 // ----------------------------------------------------------------------------
-// event processing
+// events processing and generation
 // ----------------------------------------------------------------------------
 
-void wxSpinCtrl::OnSpinChange(wxSpinEvent& eventSpin)
+void wxSpinCtrl::SendSpinUpdate(int value)
 {
     wxCommandEvent event(wxEVT_COMMAND_SPINCTRL_UPDATED, GetId());
     event.SetEventObject(this);
-    event.SetInt(eventSpin.GetPosition());
+    event.SetInt(value);
 
     (void)GetEventHandler()->ProcessEvent(event);
 
-    if ( eventSpin.GetSkipped() )
+    m_oldValue = value;
+}
+
+void wxSpinCtrl::OnSpinChange(wxSpinEvent& eventSpin)
+{
+    const int value = eventSpin.GetPosition();
+    if ( value != m_oldValue )
     {
-        event.Skip();
+        SendSpinUpdate(value);
     }
 }