X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2c66581eaae92045864aa8d0ab80fc27f8725e52..5778dedc92f6d31435aa1cda6846979a0e9ad35b:/src/msw/dialog.cpp?ds=inline

diff --git a/src/msw/dialog.cpp b/src/msw/dialog.cpp
index 64d7f61bc6..592c23a9bc 100644
--- a/src/msw/dialog.cpp
+++ b/src/msw/dialog.cpp
@@ -40,7 +40,7 @@
 
 #include "wx/msw/private.h"
 #include "wx/evtloop.h"
-#include "wx/ptr_scpd.h"
+#include "wx/scopedptr.h"
 
 #if defined(__SMARTPHONE__) && defined(__WXWINCE__)
     #include "wx/msw/wince/resources.h"
@@ -145,14 +145,14 @@ wxDEFINE_TIED_SCOPED_PTR_TYPE(wxDialogModalData)
 
 void wxDialog::Init()
 {
-    m_oldFocus = (wxWindow *)NULL;
     m_isShown = false;
     m_modalData = NULL;
-    m_endModalCalled = false;
 #if wxUSE_TOOLBAR && defined(__POCKETPC__)
     m_dialogToolBar = NULL;
 #endif
+#if wxUSE_DIALOG_SIZEGRIP
     m_hGripper = 0;
+#endif // wxUSE_DIALOG_SIZEGRIP
 }
 
 bool wxDialog::Create(wxWindow *parent,
@@ -165,9 +165,6 @@ bool wxDialog::Create(wxWindow *parent,
 {
     SetExtraStyle(GetExtraStyle() | wxTOPLEVEL_EX_DIALOG);
 
-    // save focus before doing anything which can potentially change it
-    m_oldFocus = FindFocus();
-
     // All dialogs should really have this style
     style |= wxTAB_TRAVERSAL;
 
@@ -184,48 +181,33 @@ bool wxDialog::Create(wxWindow *parent,
     CreateToolBar();
 #endif
 
-    if( HasFlag(wxRESIZE_BORDER) )
+#if wxUSE_DIALOG_SIZEGRIP
+    if ( HasFlag(wxRESIZE_BORDER) )
+    {
         CreateGripper();
 
+        Connect(wxEVT_CREATE,
+                wxWindowCreateEventHandler(wxDialog::OnWindowCreate));
+    }
+#endif // wxUSE_DIALOG_SIZEGRIP
+
     return true;
 }
 
 wxDialog::~wxDialog()
 {
-    m_isBeingDeleted = true;
-
     // this will also reenable all the other windows for a modal dialog
     Show(false);
 
+#if wxUSE_DIALOG_SIZEGRIP
     DestroyGripper();
+#endif // wxUSE_DIALOG_SIZEGRIP
 }
 
 // ----------------------------------------------------------------------------
 // showing the dialogs
 // ----------------------------------------------------------------------------
 
-wxWindow *wxDialog::FindSuitableParent() const
-{
-    // first try to use the currently active window
-    HWND hwndFg = ::GetForegroundWindow();
-    wxWindow *parent = hwndFg ? wxFindWinFromHandle((WXHWND)hwndFg)
-                              : NULL;
-    if ( !parent )
-    {
-        // next try the main app window
-        parent = wxTheApp->GetTopWindow();
-    }
-
-    // finally, check if the parent we found is really suitable
-    if ( !parent || parent == (wxWindow *)this || !parent->IsShown() )
-    {
-        // don't use this one
-        parent = NULL;
-    }
-
-    return parent;
-}
-
 bool wxDialog::Show(bool show)
 {
     if ( show == IsShown() )
@@ -256,13 +238,15 @@ bool wxDialog::Show(bool show)
 
     if ( show )
     {
-        // dialogs don't get WM_SIZE message after creation unlike most (all?)
-        // other windows and so could start their life non laid out correctly
-        // if we didn't call Layout() from here
+        // dialogs don't get WM_SIZE message from ::ShowWindow() for some
+        // reason so generate it ourselves for consistency with frames and
+        // dialogs in other ports
         //
         // NB: normally we should call it just the first time but doing it
         //     every time is simpler than keeping a flag
-        Layout();
+        const wxSize size = GetClientSize();
+        ::SendMessage(GetHwnd(), WM_SIZE,
+                      SIZE_RESTORED, MAKELPARAM(size.x, size.y));
     }
 
     return true;
@@ -276,56 +260,18 @@ void wxDialog::Raise()
 // show dialog modally
 int wxDialog::ShowModal()
 {
-    wxASSERT_MSG( !IsModal(), _T("wxDialog::ShowModal() reentered?") );
-
-    m_endModalCalled = false;
+    wxASSERT_MSG( !IsModal(), wxT("ShowModal() can't be called twice") );
 
     Show();
 
     // EndModal may have been called from InitDialog handler (called from
-    // inside Show()), which would cause an infinite loop if we didn't take it
-    // into account
-    if ( !m_endModalCalled )
+    // inside Show()) and hidden the dialog back again
+    if ( IsShown() )
     {
-        // modal dialog needs a parent window, so try to find one
-        wxWindow *parent = GetParent();
-        if ( !parent )
-        {
-            parent = FindSuitableParent();
-        }
-
-        // remember where the focus was
-        wxWindow *oldFocus = m_oldFocus;
-        if ( !oldFocus )
-        {
-            // VZ: do we really want to do this?
-            oldFocus = parent;
-        }
-
-        // We have to remember the HWND because we need to check
-        // the HWND still exists (oldFocus can be garbage when the dialog
-        // exits, if it has been destroyed)
-        HWND hwndOldFocus = oldFocus ? GetHwndOf(oldFocus) : NULL;
-
-
         // enter and run the modal loop
-        {
-            wxDialogModalDataTiedPtr modalData(&m_modalData,
-                                               new wxDialogModalData(this));
-            modalData->RunLoop();
-        }
-
-
-        // and restore focus
-        // Note that this code MUST NOT access the dialog object's data
-        // in case the object has been deleted (which will be the case
-        // for a modal dialog that has been destroyed before calling EndModal).
-        if ( oldFocus && (oldFocus != this) && ::IsWindow(hwndOldFocus))
-        {
-            // This is likely to prove that the object still exists
-            if (wxFindWinFromHandle((WXHWND) hwndOldFocus) == oldFocus)
-                oldFocus->SetFocus();
-        }
+        wxDialogModalDataTiedPtr modalData(&m_modalData,
+                                           new wxDialogModalData(this));
+        modalData->RunLoop();
     }
 
     return GetReturnCode();
@@ -333,9 +279,8 @@ int wxDialog::ShowModal()
 
 void wxDialog::EndModal(int retCode)
 {
-    wxASSERT_MSG( IsModal(), _T("EndModal() called for non modal dialog") );
+    wxASSERT_MSG( IsModal(), wxT("EndModal() called for non modal dialog") );
 
-    m_endModalCalled = true;
     SetReturnCode(retCode);
 
     Hide();
@@ -345,11 +290,13 @@ void wxDialog::EndModal(int retCode)
 // wxDialog gripper handling
 // ----------------------------------------------------------------------------
 
+#if wxUSE_DIALOG_SIZEGRIP
+
 void wxDialog::SetWindowStyleFlag(long style)
 {
     wxDialogBase::SetWindowStyleFlag(style);
 
-    if( HasFlag(wxRESIZE_BORDER) )
+    if ( HasFlag(wxRESIZE_BORDER) )
         CreateGripper();
     else
         DestroyGripper();
@@ -357,13 +304,15 @@ void wxDialog::SetWindowStyleFlag(long style)
 
 void wxDialog::CreateGripper()
 {
-    if( !m_hGripper )
+    if ( !m_hGripper )
     {
+        // just create it here, it will be positioned and shown later
         m_hGripper = (WXHWND)::CreateWindow
                                (
                                     wxT("SCROLLBAR"),
                                     wxT(""),
-                                    WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS |
+                                    WS_CHILD |
+                                    WS_CLIPSIBLINGS |
                                     SBS_SIZEGRIP |
                                     SBS_SIZEBOX |
                                     SBS_SIZEBOXBOTTOMRIGHTALIGN,
@@ -373,9 +322,6 @@ void wxDialog::CreateGripper()
                                     wxGetInstance(),
                                     NULL
                                );
-
-        // position the gripper correctly after creation
-        ResizeGripper();
     }
 }
 
@@ -383,6 +329,14 @@ void wxDialog::DestroyGripper()
 {
     if ( m_hGripper )
     {
+        // we used to have trouble with gripper appearing on top (and hence
+        // overdrawing) the other, real, dialog children -- check that this
+        // isn't the case automatically (but notice that this could be false if
+        // we're not shown at all as in this case ResizeGripper() might not
+        // have been called yet)
+        wxASSERT_MSG( !IsShown() ||
+                      ::GetWindow((HWND)m_hGripper, GW_HWNDNEXT) == 0,
+            wxT("Bug in wxWidgets: gripper should be at the bottom of Z-order") );
         ::DestroyWindow((HWND) m_hGripper);
         m_hGripper = 0;
     }
@@ -390,14 +344,17 @@ void wxDialog::DestroyGripper()
 
 void wxDialog::ShowGripper(bool show)
 {
-    wxASSERT_MSG( m_hGripper, _T("shouldn't be called if we have no gripper") );
+    wxASSERT_MSG( m_hGripper, wxT("shouldn't be called if we have no gripper") );
+
+    if ( show )
+        ResizeGripper();
 
     ::ShowWindow((HWND)m_hGripper, show ? SW_SHOW : SW_HIDE);
 }
 
 void wxDialog::ResizeGripper()
 {
-    wxASSERT_MSG( m_hGripper, _T("shouldn't be called if we have no gripper") );
+    wxASSERT_MSG( m_hGripper, wxT("shouldn't be called if we have no gripper") );
 
     HWND hwndGripper = (HWND)m_hGripper;
 
@@ -410,6 +367,21 @@ void wxDialog::ResizeGripper()
                    SWP_NOACTIVATE);
 }
 
+void wxDialog::OnWindowCreate(wxWindowCreateEvent& event)
+{
+    if ( m_hGripper && IsShown() &&
+            event.GetWindow() && event.GetWindow()->GetParent() == this )
+    {
+        // Put gripper below the newly created child window
+        ::SetWindowPos((HWND)m_hGripper, HWND_BOTTOM, 0, 0, 0, 0,
+                       SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
+    }
+
+    event.Skip();
+}
+
+#endif // wxUSE_DIALOG_SIZEGRIP
+
 // ----------------------------------------------------------------------------
 // wxWin event handlers
 // ----------------------------------------------------------------------------
@@ -491,6 +463,7 @@ WXLRESULT wxDialog::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lPar
             break;
 
         case WM_SIZE:
+#if wxUSE_DIALOG_SIZEGRIP
             if ( m_hGripper )
             {
                 switch ( wParam )
@@ -501,12 +474,9 @@ WXLRESULT wxDialog::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lPar
 
                     case SIZE_RESTORED:
                         ShowGripper(true);
-                        // fall through
-
-                    default:
-                        ResizeGripper();
                 }
             }
+#endif // wxUSE_DIALOG_SIZEGRIP
 
             // the Windows dialogs unfortunately are not meant to be resizeable
             // at all and their standard class doesn't include CS_[VH]REDRAW