From 863f21995955fb3e9aa471430218967d4e642c27 Mon Sep 17 00:00:00 2001
From: mrDarker <mr.darker@163.com>
Date: 星期四, 29 五月 2025 16:11:24 +0800
Subject: [PATCH] Merge branch 'liuyang'
---
SourceCode/Bond/Servo/GridControl/GridMemDC.h | 106 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 106 insertions(+), 0 deletions(-)
diff --git a/SourceCode/Bond/Servo/GridControl/GridMemDC.h b/SourceCode/Bond/Servo/GridControl/GridMemDC.h
new file mode 100644
index 0000000..f0f4894
--- /dev/null
+++ b/SourceCode/Bond/Servo/GridControl/GridMemDC.h
@@ -0,0 +1,106 @@
+#if !defined(AFX_MEMDC_H__CA1D3541_7235_11D1_ABBA_00A0243D1382__INCLUDED_)
+#define AFX_MEMDC_H__CA1D3541_7235_11D1_ABBA_00A0243D1382__INCLUDED_
+
+#if _MSC_VER >= 1000
+#pragma once
+#endif // _MSC_VER >= 1000
+// MemDC.h : header file
+//
+
+//////////////////////////////////////////////////
+// CGridMemDC - memory DC
+//
+// Author: Keith Rule
+// Email: keithr@europa.com
+// Copyright 1996-1997, Keith Rule
+//
+// You may freely use or modify this code provided this
+// Copyright is included in all derived versions.
+//
+// History - 10/3/97 Fixed scrolling bug.
+// Added print support.
+// 25 feb 98 - fixed minor assertion bug
+//
+// This class implements a memory Device Context
+
+class CGridMemDC : public CDC
+{
+public:
+
+ // constructor sets up the memory DC
+ CGridMemDC(CDC* pDC) : CDC()
+ {
+// ASSERT(pDC != NULL);
+
+ m_pDC = pDC;
+ m_pOldBitmap = NULL;
+#ifndef _WIN32_WCE_NO_PRINTING
+ m_bMemDC = !pDC->IsPrinting();
+#else
+ m_bMemDC = FALSE;
+#endif
+
+ if (m_bMemDC) // Create a Memory DC
+ {
+ pDC->GetClipBox(&m_rect);
+ CreateCompatibleDC(pDC);
+ m_bitmap.CreateCompatibleBitmap(pDC, m_rect.Width(), m_rect.Height());
+ m_pOldBitmap = SelectObject(&m_bitmap);
+#ifndef _WIN32_WCE
+ SetWindowOrg(m_rect.left, m_rect.top);
+#endif
+ // EFW - Bug fix - Fill background in case the user has overridden
+ // WM_ERASEBKGND. We end up with garbage otherwise.
+ // CJM - moved to fix a bug in the fix.
+ FillSolidRect(m_rect, pDC->GetBkColor());
+ }
+ else // Make a copy of the relevent parts of the current DC for printing
+ {
+#if !defined(_WIN32_WCE) || ((_WIN32_WCE > 201) && !defined(_WIN32_WCE_NO_PRINTING))
+ m_bPrinting = pDC->m_bPrinting;
+#endif
+ m_hDC = pDC->m_hDC;
+ m_hAttribDC = pDC->m_hAttribDC;
+ }
+
+ }
+
+ // Destructor copies the contents of the mem DC to the original DC
+ ~CGridMemDC()
+ {
+ if (m_bMemDC)
+ {
+ // Copy the offscreen bitmap onto the screen.
+ m_pDC->BitBlt(m_rect.left, m_rect.top, m_rect.Width(), m_rect.Height(),
+ this, m_rect.left, m_rect.top, SRCCOPY);
+
+ //Swap back the original bitmap.
+ SelectObject(m_pOldBitmap);
+ } else {
+ // All we need to do is replace the DC with an illegal value,
+ // this keeps us from accidently deleting the handles associated with
+ // the CDC that was passed to the constructor.
+ m_hDC = m_hAttribDC = NULL;
+ }
+ }
+
+ // Allow usage as a pointer
+ CGridMemDC* operator->() {return this;}
+
+ // Allow usage as a pointer
+ operator CGridMemDC*() {return this;}
+
+private:
+ CBitmap m_bitmap; // Offscreen bitmap
+ CBitmap* m_pOldBitmap; // bitmap originally found in CGridMemDC
+ CDC* m_pDC; // Saves CDC passed in constructor
+ CRect m_rect; // Rectangle of drawing area.
+ BOOL m_bMemDC; // TRUE if CDC really is a Memory DC.
+};
+
+/////////////////////////////////////////////////////////////////////////////
+
+//{{AFX_INSERT_LOCATION}}
+// Microsoft Developer Studio will insert additional declarations immediately before the previous line.
+
+#endif // !defined(AFX_MEMDC_H__CA1D3541_7235_11D1_ABBA_00A0243D1382__INCLUDED_)
--
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