Add wxPanel::SetBackgroundBitmap().

[wxWidgets.git] / src / generic / panelg.cpp

diff --git a/src/generic/panelg.cpp b/src/generic/panelg.cpp
new file mode 100644 (file)
index 0000000..8e86b17
--- /dev/null
+++ b/src/generic/panelg.cpp
@@ -0,0 +1,69 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        src/generic/panelg.cpp
+// Purpose:     Generic wxPanel implementation.
+// Author:      Vadim Zeitlin
+// Created:     2011-03-20
+// RCS-ID:      $Id: wxhead.cpp,v 1.11 2010-04-22 12:44:51 zeitlin Exp $
+// Copyright:   (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+// for compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#ifdef wxHAS_GENERIC_PANEL
+
+#ifndef WX_PRECOMP
+    #include "wx/dc.h"
+    #include "wx/panel.h"
+#endif // WX_PRECOMP
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+void wxPanel::DoSetBackgroundBitmap(const wxBitmap& bmp)
+{
+    m_bitmapBg = bmp;
+
+    if ( m_bitmapBg.IsOk() )
+    {
+        Connect(wxEVT_ERASE_BACKGROUND,
+                wxEraseEventHandler(wxPanel::OnEraseBackground));
+    }
+    else
+    {
+        Disconnect(wxEVT_ERASE_BACKGROUND,
+                   wxEraseEventHandler(wxPanel::OnEraseBackground));
+    }
+}
+
+void wxPanel::OnEraseBackground(wxEraseEvent& event)
+{
+    wxDC& dc = *event.GetDC();
+
+    const wxSize clientSize = GetClientSize();
+    const wxSize bitmapSize = m_bitmapBg.GetSize();
+
+    for ( int x = 0; x < clientSize.x; x += bitmapSize.x )
+    {
+        for ( int y = 0; y < clientSize.y; y += bitmapSize.y )
+        {
+            dc.DrawBitmap(m_bitmapBg, x, y);
+        }
+    }
+}
+
+#endif // wxHAS_GENERIC_PANEL