fixing overrelease and out-of-bounds write, fixes #13725

[wxWidgets.git] / src / common / pickerbase.cpp

diff --git a/src/common/pickerbase.cpp b/src/common/pickerbase.cpp
index d18dbb0a33a47678821c4dc6365231b32d97091f..fa3532995222f2e35437fb3611078c246142e25e 100644 (file)
--- a/src/common/pickerbase.cpp
+++ b/src/common/pickerbase.cpp
@@ -30,24 +30,19 @@
     wxUSE_FONTPICKERCTRL
 
 #include "wx/pickerbase.h"
+#include "wx/tooltip.h"
 
 #ifndef WX_PRECOMP
     #include "wx/textctrl.h"
 #endif
 
+
 // ============================================================================
 // implementation
 // ============================================================================
 
 IMPLEMENT_ABSTRACT_CLASS(wxPickerBase, wxControl)
 
-BEGIN_EVENT_TABLE(wxPickerBase, wxControl)
-    EVT_SIZE(wxPickerBase::OnSize)
-    WX_EVENT_TABLE_CONTROL_CONTAINER(wxPickerBase)
-END_EVENT_TABLE()
-WX_DELEGATE_TO_CONTROL_CONTAINER(wxPickerBase)
-
-
 // ----------------------------------------------------------------------------
 // wxPickerBase
 // ----------------------------------------------------------------------------
@@ -64,10 +59,13 @@ bool wxPickerBase::CreateBase(wxWindow *parent,
     // remove any border style from our style as wxPickerBase's window must be
     // invisible (user styles must be set on the textctrl or the platform-dependent picker)
     style &= ~wxBORDER_MASK;
+
     if (!wxControl::Create(parent, id, pos, size, style | wxNO_BORDER | wxTAB_TRAVERSAL,
                            validator, name))
         return false;
 
+    SetMinSize( size );
+
     m_sizer = new wxBoxSizer(wxHORIZONTAL);
 
     if (HasFlag(wxPB_USE_TEXTCTRL))
@@ -75,15 +73,16 @@ bool wxPickerBase::CreateBase(wxWindow *parent,
         // NOTE: the style of this class (wxPickerBase) and the style of the
         //       attached text control are different: GetTextCtrlStyle() extracts
         //       the styles related to the textctrl from the styles passed here
-        m_text = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition,
-                                wxDefaultSize, GetTextCtrlStyle(style));
+        m_text = new wxTextCtrl(this, wxID_ANY, wxEmptyString,
+                                wxDefaultPosition, wxDefaultSize,
+                                GetTextCtrlStyle(style));
         if (!m_text)
         {
             wxFAIL_MSG( wxT("wxPickerBase's textctrl creation failed") );
             return false;
         }
 
-        // set the maximum lenght allowed for this textctrl.
+        // set the maximum length allowed for this textctrl.
         // This is very important since any change to it will trigger an update in
         // the m_picker; for very long strings, this real-time synchronization could
         // become a CPU-blocker and thus should be avoided.
@@ -93,17 +92,18 @@ bool wxPickerBase::CreateBase(wxWindow *parent,
         // set the initial contents of the textctrl
         m_text->SetValue(text);
 
-        m_text->Connect(wxEVT_COMMAND_TEXT_UPDATED,
+        m_text->Connect(m_text->GetId(), wxEVT_COMMAND_TEXT_UPDATED,
                 wxCommandEventHandler(wxPickerBase::OnTextCtrlUpdate),
                 NULL, this);
-        m_text->Connect(wxEVT_KILL_FOCUS,
+        m_text->Connect(m_text->GetId(), wxEVT_KILL_FOCUS,
                 wxFocusEventHandler(wxPickerBase::OnTextCtrlKillFocus),
                 NULL, this);
 
-        m_text->Connect(wxEVT_DESTROY,
+        m_text->Connect(m_text->GetId(), wxEVT_DESTROY,
                 wxWindowDestroyEventHandler(wxPickerBase::OnTextCtrlDelete),
                 NULL, this);
 
+        // the text control's proportion values defaults to 2
         m_sizer->Add(m_text, 2, GetDefaultTextCtrlFlag(), 5);
     }
 
@@ -112,19 +112,56 @@ bool wxPickerBase::CreateBase(wxWindow *parent,
 
 void wxPickerBase::PostCreation()
 {
-    // the picker's proportion value is fixed
-    m_sizer->Add(m_picker, 1, GetDefaultPickerCtrlFlag(), 5);
+    // the picker's proportion value defaults to 1 when there's no text control
+    // associated with it - in that case it defaults to 0
+    m_sizer->Add(m_picker, HasTextCtrl() ? 0 : 1, GetDefaultPickerCtrlFlag(), 5);
+
+    // For aesthetic reasons, make sure the picker is at least as high as the
+    // associated text control and is always at least square, unless we are
+    // explicitly using wxPB_SMALL style to force it to take as little space as
+    // possible.
+    if ( !HasFlag(wxPB_SMALL) )
+    {
+        const wxSize pickerBestSize(m_picker->GetBestSize());
+        const wxSize textBestSize( HasTextCtrl() ? m_text->GetBestSize() : wxSize());
+        wxSize pickerMinSize;
+        pickerMinSize.y = wxMax(pickerBestSize.y, textBestSize.y);
+        pickerMinSize.x = wxMax(pickerBestSize.x, pickerMinSize.y);
+        if ( pickerMinSize != pickerBestSize )
+            m_picker->SetMinSize(pickerMinSize);
+    }
 
     SetSizer(m_sizer);
-    m_sizer->SetSizeHints(this);
+
+    SetInitialSize( GetMinSize() );
 }
 
-void wxPickerBase::OnTextCtrlKillFocus(wxFocusEvent &)
+#if wxUSE_TOOLTIPS
+
+void wxPickerBase::DoSetToolTip(wxToolTip *tip)
 {
-    wxASSERT(m_text);
+    // don't set the tooltip on us but rather on our two child windows
+    // as otherwise it would appear only when the cursor is placed on the
+    // small area around the child windows which belong to wxPickerBase
+    m_picker->SetToolTip(tip);
+
+    // do a copy as wxWindow will own the pointer we pass
+    if ( m_text )
+        m_text->SetToolTip(tip ? new wxToolTip(tip->GetTip()) : NULL);
+}
+
+#endif // wxUSE_TOOLTIPS
+
+// ----------------------------------------------------------------------------
+// wxPickerBase - event handlers
+// ----------------------------------------------------------------------------
+
+void wxPickerBase::OnTextCtrlKillFocus(wxFocusEvent& event)
+{
+    event.Skip();
 
     // don't leave the textctrl empty
-    if (m_text->GetValue().empty())
+    if (m_text && m_text->GetValue().empty())
         UpdateTextCtrlFromPicker();
 }
 
@@ -140,11 +177,4 @@ void wxPickerBase::OnTextCtrlUpdate(wxCommandEvent &)
     UpdatePickerFromTextCtrl();
 }
 
-void wxPickerBase::OnSize(wxSizeEvent &event)
-{
-    if (GetAutoLayout())
-        Layout();
-    event.Skip();
-}
-
 #endif // Any picker in use