X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/48d1144bc4dabb9f8dd6f913e9a65d709e5995e3..f377a3b58c509ceba8c9335dbe45d100cca615ad:/src/generic/scrolwin.cpp

diff --git a/src/generic/scrolwin.cpp b/src/generic/scrolwin.cpp
index 2a2eeb014c..033b08913b 100644
--- a/src/generic/scrolwin.cpp
+++ b/src/generic/scrolwin.cpp
@@ -25,22 +25,28 @@
 #endif
 
 #include "wx/generic/scrolwin.h"
+#include "wx/panel.h"
 
 #if !USE_SHARED_LIBRARY
-BEGIN_EVENT_TABLE(wxScrolledWindow, wxWindow)
-    EVT_SCROLL(wxScrolledWindow::OnScroll)
+BEGIN_EVENT_TABLE(wxScrolledWindow, wxPanel)
+    EVT_SCROLLWIN(wxScrolledWindow::OnScroll)
     EVT_SIZE(wxScrolledWindow::OnSize)
     EVT_PAINT(wxScrolledWindow::OnPaint)
 END_EVENT_TABLE()
 
-IMPLEMENT_DYNAMIC_CLASS(wxScrolledWindow, wxWindow)
+IMPLEMENT_DYNAMIC_CLASS(wxScrolledWindow, wxPanel)
 #endif
 
 #ifdef __WXMSW__
 #include "windows.h"
 #endif
 
-wxScrolledWindow::wxScrolledWindow(void)
+#ifdef __WXMOTIF__
+// For wxRETAINED implementation
+#include <Xm/Xm.h>
+#endif
+
+wxScrolledWindow::wxScrolledWindow()
 {
     m_xScrollPixelsPerLine = 0;
     m_yScrollPixelsPerLine = 0;
@@ -75,7 +81,7 @@ bool wxScrolledWindow::Create(wxWindow *parent, wxWindowID id,
     m_scaleX = 1.0;
     m_scaleY = 1.0;
 
-    return wxWindow::Create(parent, id, pos, size, style, name);
+    return wxPanel::Create(parent, id, pos, size, style, name);
 }
 
 /*
@@ -89,9 +95,9 @@ void wxScrolledWindow::SetScrollbars (int pixelsPerUnitX, int pixelsPerUnitY,
     bool do_refresh =
     (
       (noUnitsX != 0 && m_xScrollLines == 0) ||
-      (noUnitsX < m_xScrollPosition) ||
+      (noUnitsX < m_xScrollLines) ||
       (noUnitsY != 0 && m_yScrollLines == 0) ||
-      (noUnitsY < m_yScrollPosition) ||
+      (noUnitsY < m_yScrollLines) ||
       (xPos != m_xScrollPosition) ||
       (yPos != m_yScrollPosition) ||
       (pixelsPerUnitX != m_xScrollPixelsPerLine) ||
@@ -104,10 +110,44 @@ void wxScrolledWindow::SetScrollbars (int pixelsPerUnitX, int pixelsPerUnitY,
     m_yScrollPosition = yPos;
     m_xScrollLines = noUnitsX;
     m_yScrollLines = noUnitsY;
+
+#ifdef __WXMOTIF__
+    // Sorry, some Motif-specific code to implement a backing pixmap
+    // for the wxRETAINED style. Implementing a backing store can't
+    // be entirely generic because it relies on the wxWindowDC implementation
+    // to duplicate X drawing calls for the backing pixmap.
+
+    if ((m_windowStyle & wxRETAINED) == wxRETAINED)
+    {
+        Display* dpy = XtDisplay((Widget) GetMainWidget());
+
+        int totalPixelWidth = m_xScrollLines * m_xScrollPixelsPerLine;
+        int totalPixelHeight = m_yScrollLines * m_yScrollPixelsPerLine;
+        if (m_backingPixmap &&
+           !((m_pixmapWidth == totalPixelWidth) &&
+             (m_pixmapHeight == totalPixelHeight)))
+        {
+            XFreePixmap (dpy, (Pixmap) m_backingPixmap);
+            m_backingPixmap = (WXPixmap) 0;
+        }
+
+        if (!m_backingPixmap &&
+           (noUnitsX != 0) && (noUnitsY != 0))
+        {
+            int depth = wxDisplayDepth();
+            m_pixmapWidth = totalPixelWidth;
+            m_pixmapHeight = totalPixelHeight;
+            m_backingPixmap = (WXPixmap) XCreatePixmap (dpy, RootWindow (dpy, DefaultScreen (dpy)),
+            m_pixmapWidth, m_pixmapHeight, depth);
+	}
+
+    }
+#endif
       
     AdjustScrollbars();
    
-   if (do_refresh && !noRefresh) Refresh();
+    if (do_refresh && !noRefresh) 
+	Refresh(); 
    
 #ifdef __WXMSW__
    // Necessary?
@@ -115,7 +155,7 @@ void wxScrolledWindow::SetScrollbars (int pixelsPerUnitX, int pixelsPerUnitY,
 #endif
 }
 
-void wxScrolledWindow::OnScroll(wxScrollEvent& event)
+void wxScrolledWindow::OnScroll(wxScrollWinEvent& event)
 {
     int orient = event.GetOrientation();
 
@@ -158,7 +198,7 @@ void wxScrolledWindow::OnScroll(wxScrollEvent& event)
   }
 }
 
-int wxScrolledWindow::CalcScrollInc(wxScrollEvent& event)
+int wxScrolledWindow::CalcScrollInc(wxScrollWinEvent& event)
 {
   int pos = event.GetPosition();
   int orient = event.GetOrientation();
@@ -166,7 +206,7 @@ int wxScrolledWindow::CalcScrollInc(wxScrollEvent& event)
   int nScrollInc = 0;
   switch (event.GetEventType())
   {
-    case wxEVT_SCROLL_TOP:
+    case wxEVT_SCROLLWIN_TOP:
     {
       if (orient == wxHORIZONTAL)
         nScrollInc = - m_xScrollPosition;
@@ -174,7 +214,7 @@ int wxScrolledWindow::CalcScrollInc(wxScrollEvent& event)
         nScrollInc = - m_yScrollPosition;
       break;
     }
-    case wxEVT_SCROLL_BOTTOM:
+    case wxEVT_SCROLLWIN_BOTTOM:
     {
       if (orient == wxHORIZONTAL)
         nScrollInc = m_xScrollLines - m_xScrollPosition;
@@ -182,17 +222,17 @@ int wxScrolledWindow::CalcScrollInc(wxScrollEvent& event)
         nScrollInc = m_yScrollLines - m_yScrollPosition;
       break;
     }
-    case wxEVT_SCROLL_LINEUP:
+    case wxEVT_SCROLLWIN_LINEUP:
     {
       nScrollInc = -1;
       break;
     }
-    case wxEVT_SCROLL_LINEDOWN:
+    case wxEVT_SCROLLWIN_LINEDOWN:
     {
       nScrollInc = 1;
       break;
     }
-    case wxEVT_SCROLL_PAGEUP:
+    case wxEVT_SCROLLWIN_PAGEUP:
     {
       if (orient == wxHORIZONTAL)
         nScrollInc = -GetScrollPageSize(wxHORIZONTAL);
@@ -200,7 +240,7 @@ int wxScrolledWindow::CalcScrollInc(wxScrollEvent& event)
         nScrollInc = -GetScrollPageSize(wxVERTICAL);
       break;
     }
-    case wxEVT_SCROLL_PAGEDOWN:
+    case wxEVT_SCROLLWIN_PAGEDOWN:
     {
       if (orient == wxHORIZONTAL)
         nScrollInc = GetScrollPageSize(wxHORIZONTAL);
@@ -208,7 +248,7 @@ int wxScrolledWindow::CalcScrollInc(wxScrollEvent& event)
         nScrollInc = GetScrollPageSize(wxVERTICAL);
       break;
     }
-    case wxEVT_SCROLL_THUMBTRACK:
+    case wxEVT_SCROLLWIN_THUMBTRACK:
     {
       if (orient == wxHORIZONTAL)
         nScrollInc = pos - m_xScrollPosition;
@@ -418,7 +458,8 @@ void wxScrolledWindow::Scroll( int x_pos, int y_pos )
         SetScrollPos( wxVERTICAL, m_yScrollPosition, TRUE );
     }
     
-    Refresh();
+    // BAD, BAD, can cause event loops if called from OnPaint(). KB.
+    // Refresh();
     
 #ifdef __WXMSW__
     // Necessary?