From: Włodzimierz Skiba <abx@abx.art.pl>
Date: Thu, 23 Sep 2004 12:43:10 +0000 (+0000)
Subject: wx(Choice/List/Note)book controls send CHANG(ED/ING) events in SetSelection.
X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/1f30c17645c56f85178ee780fa330d954e45cea9?ds=inline

wx(Choice/List/Note)book controls send CHANG(ED/ING) events in SetSelection.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@29276 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---

diff --git a/docs/changes.txt b/docs/changes.txt
index 8d1e1b4612..dd3082df78 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -233,6 +233,7 @@ All (GUI):
 - added wxChoicebook control
 - smoother time estimation updates in wxProgressDialog (Christian Sturmlechner)
 - the XRC contrib library was moved to the core
+- wx(Choice/List/Note)book controls send CHANG(ED/ING) events in SetSelection
 
 Unix:
 
diff --git a/include/wx/bookctrl.h b/include/wx/bookctrl.h
index 0f03436ae5..d404021123 100644
--- a/include/wx/bookctrl.h
+++ b/include/wx/bookctrl.h
@@ -156,7 +156,7 @@ public:
     // set the currently selected page, return the index of the previously
     // selected one (or -1 on error)
     //
-    // NB: this function will _not_ generate PAGE_CHANGING/ED events
+    // NB: this function will generate PAGE_CHANGING/ED events
     virtual int SetSelection(size_t n) = 0;
 
 
diff --git a/src/generic/choicbkg.cpp b/src/generic/choicbkg.cpp
index 7620db21e9..f390ca06e5 100644
--- a/src/generic/choicbkg.cpp
+++ b/src/generic/choicbkg.cpp
@@ -50,6 +50,13 @@ const wxCoord MARGIN = 5;
 // various wxWidgets macros
 // ----------------------------------------------------------------------------
 
+// check that the page index is valid
+#define IS_VALID_PAGE(nPage) ((nPage) < GetPageCount())
+
+// ----------------------------------------------------------------------------
+// event table
+// ----------------------------------------------------------------------------
+
 IMPLEMENT_DYNAMIC_CLASS(wxChoicebook, wxControl)
 IMPLEMENT_DYNAMIC_CLASS(wxChoicebookEvent, wxNotifyEvent)
 
@@ -282,25 +289,36 @@ int wxChoicebook::GetSelection() const
 
 int wxChoicebook::SetSelection(size_t n)
 {
-    wxCHECK_MSG( n < GetPageCount(), wxNOT_FOUND,
-                 _T("invalid page index in wxChoicebook::SetSelection()") );
+    wxCHECK_MSG( IS_VALID_PAGE(n), wxNOT_FOUND,
+                 wxT("invalid page index in wxChoicebook::SetSelection()") );
 
-    const int selOld = m_selection;
+    const int oldSel = m_selection;
 
-    if ( (int)n != m_selection )
+    if ( int(n) != m_selection )
     {
-        if ( m_selection != wxNOT_FOUND )
-            m_pages[m_selection]->Hide();
-        wxWindow *page = m_pages[n];
-        page->SetSize(GetPageRect());
-        page->Show();
+        wxChoicebookEvent event(wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGING, m_windowId);
+        event.SetSelection(n);
+        event.SetOldSelection(m_selection);
+        event.SetEventObject(this);
+        if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() )
+        {
+            if ( m_selection != wxNOT_FOUND )
+                m_pages[m_selection]->Hide();
+
+            wxWindow *page = m_pages[n];
+            page->SetSize(GetPageRect());
+            page->Show();
+
+            m_selection = n;
+            m_choice->Select(n);
 
-        // change m_selection only now to ignore the selection change event
-        m_selection = n;
-        m_choice->Select(n);
+            // program allows the page change
+            event.SetEventType(wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGED);
+            (void)GetEventHandler()->ProcessEvent(event);
+        }
     }
 
-    return selOld;
+    return oldSel;
 }
 
 // ----------------------------------------------------------------------------
diff --git a/src/generic/listbkg.cpp b/src/generic/listbkg.cpp
index 928f9b1026..313205d051 100644
--- a/src/generic/listbkg.cpp
+++ b/src/generic/listbkg.cpp
@@ -48,6 +48,13 @@ const wxCoord MARGIN = 5;
 // various wxWidgets macros
 // ----------------------------------------------------------------------------
 
+// check that the page index is valid
+#define IS_VALID_PAGE(nPage) ((nPage) < GetPageCount())
+
+// ----------------------------------------------------------------------------
+// event table
+// ----------------------------------------------------------------------------
+
 IMPLEMENT_DYNAMIC_CLASS(wxListbook, wxControl)
 IMPLEMENT_DYNAMIC_CLASS(wxListbookEvent, wxNotifyEvent)
 
@@ -340,27 +347,37 @@ int wxListbook::GetSelection() const
 
 int wxListbook::SetSelection(size_t n)
 {
-    wxCHECK_MSG( n < GetPageCount(), wxNOT_FOUND,
-                 _T("invalid page index in wxListbook::SetSelection()") );
+    wxCHECK_MSG( IS_VALID_PAGE(n), wxNOT_FOUND,
+                 wxT("invalid page index in wxListbook::SetSelection()") );
 
-    const int selOld = m_selection;
+    const int oldSel = m_selection;
 
-    if ( (int)n != m_selection )
+    if ( int(n) != m_selection )
     {
-        if ( m_selection != wxNOT_FOUND )
-            m_pages[m_selection]->Hide();
-        wxWindow *page = m_pages[n];
-        page->SetSize(GetPageRect());
-        page->Show();
+        wxListbookEvent event(wxEVT_COMMAND_LISTBOOK_PAGE_CHANGING, m_windowId);
+        event.SetSelection(n);
+        event.SetOldSelection(m_selection);
+        event.SetEventObject(this);
+        if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() )
+        {
+            if ( m_selection != wxNOT_FOUND )
+                m_pages[m_selection]->Hide();
 
-        // change m_selection only now to ignore the selection change event
-        m_selection = n;
+            wxWindow *page = m_pages[n];
+            page->SetSize(GetPageRect());
+            page->Show();
 
-        m_list->Select(n);
-        m_list->Focus(n);
+            m_selection = n;
+            m_list->Select(n);
+            m_list->Focus(n);
+
+            // program allows the page change
+            event.SetEventType(wxEVT_COMMAND_LISTBOOK_PAGE_CHANGED);
+            (void)GetEventHandler()->ProcessEvent(event);
+        }
     }
 
-    return selOld;
+    return oldSel;
 }
 
 // ----------------------------------------------------------------------------