// XTMemDC.cpp : implementation of the CXTMemDC class. // // This file is a part of the XTREME CONTROLS MFC class library. // (c)1998-2012 Codejock Software, All Rights Reserved. // // THIS SOURCE FILE IS THE PROPERTY OF CODEJOCK SOFTWARE AND IS NOT TO BE // RE-DISTRIBUTED BY ANY MEANS WHATSOEVER WITHOUT THE EXPRESSED WRITTEN // CONSENT OF CODEJOCK SOFTWARE. // // THIS SOURCE CODE CAN ONLY BE USED UNDER THE TERMS AND CONDITIONS OUTLINED // IN THE XTREME TOOLKIT PRO LICENSE AGREEMENT. CODEJOCK SOFTWARE GRANTS TO // YOU (ONE SOFTWARE DEVELOPER) THE LIMITED RIGHT TO USE THIS SOFTWARE ON A // SINGLE COMPUTER. // // CONTACT INFORMATION: // support@codejock.com // http://www.codejock.com // ///////////////////////////////////////////////////////////////////////////// #include "stdafx.h" #include "Common/XTPColorManager.h" #include "Common/XTPDrawHelpers.h" #include "XTMemDC.h" #ifdef _DEBUG #undef THIS_FILE static char THIS_FILE[] = __FILE__; #define new DEBUG_NEW #endif IMPLEMENT_DYNAMIC(CXTMemDC, CDC) //=========================================================================== // CXTMemDC class //=========================================================================== CXTMemDC::CXTMemDC(CDC* pDC, const CRect& rect, CXTPPaintManagerColorGradient crBack/*=GetXtremeColor(COLOR_3DFACE)*/, BOOL bHorz/*=FALSE*/) { ASSERT(pDC != NULL); m_pDC = pDC; if (!m_pDC) return; // If rect is NULL, use the device context's clip box. if (rect.IsRectEmpty()) m_pDC->GetClipBox(&m_rc); else m_rc.CopyRect(&rect); // Create the memory DC, set Map Mode if (CreateCompatibleDC(m_pDC)) { SetMapMode(m_pDC->GetMapMode()); // Create a bitmap big enough to hold the window's image m_bitmap.CreateCompatibleBitmap(m_pDC, m_rc.Width(), m_rc.Height()); // Select the bitmap into the memory DC m_hOldBitmap = (HBITMAP)SelectObject(&m_bitmap)->GetSafeHandle(); if (crBack != COLORREF_NULL) { // fill background XTPDrawHelpers()->GradientFill(this, CRect(0, 0, m_rc.Width(), m_rc.Height()), crBack, bHorz); } m_bValid = TRUE; } // Something bad happened, could be GDI leak, didn't create device context. else { m_bValid = FALSE; m_hOldBitmap = NULL; } } CXTMemDC::~CXTMemDC() { if (IsValid()) { // Blt it m_pDC->BitBlt(m_rc.left, m_rc.top, m_rc.Width(), m_rc.Height(), this, 0, 0, SRCCOPY); } // Select the original bitmap back in if (m_hOldBitmap != NULL) { SelectObject(m_hOldBitmap); m_bitmap.DeleteObject(); } DeleteDC(); } CBitmap& CXTMemDC::GetBitmap() { return m_bitmap; } void CXTMemDC::Discard() { m_bValid = FALSE; } BOOL CXTMemDC::IsValid() const { return m_bValid; } void CXTMemDC::FromDC() { BitBlt(0, 0, m_rc.Width(), m_rc.Height(), m_pDC, m_rc.left, m_rc.top, SRCCOPY); }