added some wxMSW stuff

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1998-05-20 14:12:05 +00:00
parent c801d85f15
commit 2bda0e1738
196 changed files with 57505 additions and 0 deletions
--- a/src/msw/dcmemory.cpp
+++ b/src/msw/dcmemory.cpp
@@ -0,0 +1,116 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        dcmemory.cpp
+// Purpose:     wxMemoryDC class
+// Author:      Julian Smart
+// Modified by:
+// Created:     01/02/97
+// RCS-ID:      $Id$
+// Copyright:   (c) Julian Smart and Markus Holzem
+// Licence:   	wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifdef __GNUG__
+#pragma implementation
+#pragma implementation "dcmemory.h"
+#endif
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+#pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+#endif
+
+#include "wx/dcmemory.h"
+
+#include <windows.h>
+
+#if !USE_SHARED_LIBRARY
+IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC, wxDC)
+#endif
+
+/*
+ * Memory DC
+ *
+ */
+
+wxMemoryDC::wxMemoryDC(void)
+{
+  m_hDC = (WXHDC) ::CreateCompatibleDC(NULL);
+  m_ok = (m_hDC != 0);
+
+  SetBrush(*wxWHITE_BRUSH);
+  SetPen(*wxBLACK_PEN);
+}
+
+wxMemoryDC::wxMemoryDC(wxDC *old_dc)
+{
+  old_dc->BeginDrawing();
+
+  m_hDC = (WXHDC) ::CreateCompatibleDC((HDC) old_dc->GetHDC());
+  m_ok = (m_hDC != 0);
+
+  old_dc->EndDrawing();
+
+  SetBrush(*wxWHITE_BRUSH);
+  SetPen(*wxBLACK_PEN);
+}
+
+wxMemoryDC::~wxMemoryDC(void)
+{
+}
+
+void wxMemoryDC::SelectObject(const wxBitmap& bitmap)
+{
+  // Select old bitmap out of the device context
+  if (m_oldBitmap)
+  {
+    ::SelectObject((HDC) m_hDC, (HBITMAP) m_oldBitmap);
+    if (m_selectedBitmap.Ok())
+    {
+      m_selectedBitmap.SetSelectedInto(NULL);
+      m_selectedBitmap = wxNullBitmap;
+    }
+  }
+
+  // Do own check for whether the bitmap is already selected into
+  // a device context
+  if (bitmap.GetSelectedInto() && (bitmap.GetSelectedInto() != this))
+  {
+    wxFatalError("Error in wxMemoryDC::SelectObject\nBitmap is selected in another wxMemoryDC.\nDelete the first wxMemoryDC or use SelectObject(NULL)");
+    return;
+  }
+  
+  m_selectedBitmap = bitmap;
+
+  if (!m_selectedBitmap.Ok())
+    return;
+
+  m_selectedBitmap.SetSelectedInto(this);
+#if DEBUG > 1
+  wxDebugMsg("wxMemoryDC::SelectObject: Selecting HBITMAP %X\n", m_selectedBitmap.GetHBITMAP());
+#endif
+  HBITMAP bm = ::SelectObject((HDC) m_hDC, (HBITMAP) m_selectedBitmap.GetHBITMAP());
+
+  if (bm == ERROR)
+  {
+    wxFatalError("Error in wxMemoryDC::SelectObject\nBitmap may not be loaded, or may be selected in another wxMemoryDC.\nDelete the first wxMemoryDC to deselect bitmap.");
+  }
+  else if (!m_oldBitmap)
+    m_oldBitmap = (WXHBITMAP) bm;
+}
+
+void wxMemoryDC::GetSize(int *width, int *height) const
+{
+  if (!m_selectedBitmap.Ok())
+  {
+    *width = 0; *height = 0;
+    return;
+  }
+  *width = m_selectedBitmap.GetWidth();
+  *height = m_selectedBitmap.GetHeight();
+}
+