Fixed DoShowModal again, to check that the oldFocus object isn't dead.

Added integer handling for wxTextCtrls in wxGenericValidator.
Added virtual function to wxGenericDragImage so it can do _really_ smooth
dragging under app control.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@7657 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/timer.tex

@@ -34,7 +34,7 @@ be stopped later with \helpref{Stop}{wxtimerstop}.
 
 \latexignore{\rtfignore{\wxheading{Members}}}
 
-\membersection{wxTimer::wxTimer}\label{wxtimerctordef}
+\membersection{wxTimer::wxTimer}\label{wxtimerwxtimer}
 
 \func{}{wxTimer}{\void}
 
@@ -42,8 +42,6 @@ Default constructor. If you use it to construct the object and don't call
 \helpref{SetOwner}{wxtimersetowner} later, you must override 
 \helpref{Notify}{wxtimernotify} method to process the notifications.
 
-\membersection{wxTimer::wxTimer}\label{wxtimerwxtimer}
-
 \func{}{wxTimer}{\param{wxEvtHandler *}{owner}, \param{int }{id = -1}}
 
 Creates a timer and associates it with {\it owner}. Please see 

include/wx/generic/dragimgg.h

@@ -137,6 +137,10 @@ public:
     // Attributes
     ////////////////////////////////////////////////////////////////////////////
 
+    // For efficiency, tell wxGenericDragImage to use a bitmap that's already
+    // created (e.g. from last drag)
+    void SetBackingBitmap(wxBitmap* bitmap) { m_pBackingBitmap = bitmap; }
+
     // Operations
     ////////////////////////////////////////////////////////////////////////////
 
@@ -191,6 +195,14 @@ public:
     // Override this if you are using a virtual image (drawing your own image)
     virtual bool DoDrawImage(wxDC& dc, const wxPoint& pos) const;
 
+    // Override this if you wish to draw the window contents to the backing bitmap
+    // yourself. This can be desirable if you wish to avoid flicker by not having to
+    // redraw the window itself before dragging in order to be graphic-minus-dragged-objects.
+    // Instead, paint the drag image's backing bitmap to be correct, and leave the window
+    // to be updated only when dragging the objects away (thus giving a smoother appearance).
+    virtual bool UpdateBackingFromWindow(wxDC& windowDC, wxMemoryDC& destDC,
+        const wxRect& sourceRect, const wxRect& destRect) const;
+
     // Erase and redraw simultaneously if possible
     virtual bool RedrawImage(const wxPoint& oldPos, const wxPoint& newPos, bool eraseOld, bool drawNew);
 
@@ -209,6 +221,8 @@ protected:
 
     // Stores the window contents while we're dragging the image around
     wxBitmap        m_backingBitmap;
+    wxBitmap*       m_pBackingBitmap; // Pointer to existing backing bitmap
+                                      // (pass to wxGenericDragImage as an efficiency measure)
     // A temporary bitmap for repairing/redrawing
     wxBitmap        m_repairBitmap;
 

src/common/valgen.cpp

@@ -258,11 +258,18 @@ bool wxGenericValidator::TransferToWindow(void)
     if (m_validatorWindow->IsKindOf(CLASSINFO(wxTextCtrl)) )
     {
         wxTextCtrl* pControl = (wxTextCtrl*) m_validatorWindow;
-	if (m_pString)
-	{
-	    pControl->SetValue(*m_pString) ;
-	    return TRUE;
-	}
+        if (m_pString)
+        {
+            pControl->SetValue(*m_pString) ;
+            return TRUE;
+        }
+        else if (m_pInt)
+        {
+            wxString str;
+            str.Printf("%d", *m_pInt);
+            pControl->SetValue(str);
+            return TRUE;
+        }
     } else
 #if wxUSE_CHECKLISTBOX
 #ifndef __WIN16__
@@ -474,6 +481,11 @@ bool wxGenericValidator::TransferFromWindow(void)
       *m_pString = pControl->GetValue() ;
       return TRUE;
     }
+    else if (m_pInt)
+    {
+        *m_pInt = atoi(pControl->GetValue());
+        return TRUE;
+    }
   } else
 #if wxUSE_CHECKLISTBOX
 #ifndef __WIN16__

src/generic/dragimgg.cpp

@@ -83,6 +83,7 @@ void wxGenericDragImage::Init()
     m_windowDC = (wxDC*) NULL;
     m_window = (wxWindow*) NULL;
     m_fullScreen = FALSE;
+    m_pBackingBitmap = (wxBitmap*) NULL;
 }
 
 // Attributes
@@ -244,8 +245,10 @@ bool wxGenericDragImage::BeginDrag(const wxPoint& hotspot,
         }
     }
 
-    if (!m_backingBitmap.Ok() || (m_backingBitmap.GetWidth() < clientSize.x || m_backingBitmap.GetHeight() < clientSize.y))
-        m_backingBitmap = wxBitmap(clientSize.x, clientSize.y);
+    wxBitmap* backing = (m_pBackingBitmap ? m_pBackingBitmap : (wxBitmap*) & m_backingBitmap);
+
+    if (!backing->Ok() || (backing->GetWidth() < clientSize.x || backing->GetHeight() < clientSize.y))
+        (*backing) = wxBitmap(clientSize.x, clientSize.y);
 
     if (!m_fullScreen)
         m_windowDC = new wxClientDC(window);
@@ -343,9 +346,13 @@ bool wxGenericDragImage::Show()
         // This is where we restore the backing bitmap, in case
         // something has changed on the window.
 
+        wxBitmap* backing = (m_pBackingBitmap ? m_pBackingBitmap : (wxBitmap*) & m_backingBitmap);
         wxMemoryDC memDC;
-        memDC.SelectObject(m_backingBitmap);
-        memDC.Blit(0, 0, m_boundingRect.width, m_boundingRect.height, m_windowDC, m_boundingRect.x, m_boundingRect.y);
+        memDC.SelectObject(* backing);
+
+        UpdateBackingFromWindow(* m_windowDC, memDC, m_boundingRect, wxRect(0, 0, m_boundingRect.width, m_boundingRect.height));
+
+        //memDC.Blit(0, 0, m_boundingRect.width, m_boundingRect.height, m_windowDC, m_boundingRect.x, m_boundingRect.y);
         memDC.SelectObject(wxNullBitmap);
 
         RedrawImage(m_position - m_offset, m_position - m_offset, FALSE, TRUE);
@@ -357,6 +364,12 @@ bool wxGenericDragImage::Show()
     return TRUE;
 }
 
+bool wxGenericDragImage::UpdateBackingFromWindow(wxDC& windowDC, wxMemoryDC& destDC,
+    const wxRect& sourceRect, const wxRect& destRect) const
+{
+    return destDC.Blit(destRect.x, destRect.y, destRect.width, destRect.height, & windowDC, sourceRect.x, sourceRect.y);
+}
+
 bool wxGenericDragImage::Hide()
 {
     wxASSERT_MSG( (m_windowDC != (wxDC*) NULL), wxT("No window DC in wxGenericDragImage::Hide()") );
@@ -381,7 +394,8 @@ bool wxGenericDragImage::RedrawImage(const wxPoint& oldPos, const wxPoint& newPo
     if (!m_windowDC)
         return FALSE;
 
-    if (!m_backingBitmap.Ok())
+    wxBitmap* backing = (m_pBackingBitmap ? m_pBackingBitmap : (wxBitmap*) & m_backingBitmap);
+    if (!backing->Ok())
         return FALSE;
 
     wxRect oldRect(GetImageRect(oldPos));
@@ -419,7 +433,7 @@ bool wxGenericDragImage::RedrawImage(const wxPoint& oldPos, const wxPoint& newPo
     }
 
     wxMemoryDC memDC;
-    memDC.SelectObject(m_backingBitmap);
+    memDC.SelectObject(* backing);
 
     wxMemoryDC memDCTemp;
     memDCTemp.SelectObject(m_repairBitmap);

src/msw/dialog.cpp

@@ -375,7 +375,9 @@ void wxDialog::DoShowModal()
     // for a modal dialog that has been destroyed before calling EndModal).
     if ( oldFocus && (oldFocus != this) && ::IsWindow(hwndOldFocus))
     {
-        oldFocus->SetFocus();
+        // This is likely to prove that the object still exists
+        if (wxFindWinFromHandle((WXHWND) hwndOldFocus) == oldFocus)
+            oldFocus->SetFocus();
     }
 }