You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
105 lines
4.2 KiB
C
105 lines
4.2 KiB
C
2 years ago
|
// XTMemDC.h interface for 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
|
||
|
|
//
|
||
|
|
/////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
//{{AFX_CODEJOCK_PRIVATE
|
||
|
|
#if !defined(__XTMEMDC_H__)
|
||
|
|
#define __XTMEMDC_H__
|
||
|
|
//}}AFX_CODEJOCK_PRIVATE
|
||
|
|
|
||
|
|
#if _MSC_VER > 1000
|
||
|
|
#pragma once
|
||
|
|
#endif // _MSC_VER > 1000
|
||
|
|
|
||
|
|
//===========================================================================
|
||
|
|
// Summary:
|
||
|
|
// CXTMemDC is a CDC derived class. CXTMemDC is an extension of CDC
|
||
|
|
// that helps eliminate screen flicker when windows are resized, by
|
||
|
|
// painting to an off screen bitmap. The class then uses CDC::BitBlt
|
||
|
|
// to copy the bitmap back into the current device context after all
|
||
|
|
// items have been painted.
|
||
|
|
//===========================================================================
|
||
|
|
class _XTP_EXT_CLASS CXTMemDC : public CDC
|
||
|
|
{
|
||
|
|
DECLARE_DYNAMIC(CXTMemDC)
|
||
|
|
|
||
|
|
public:
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
// Summary:
|
||
|
|
// Constructs a CXTMemDC object used for flicker free drawing.
|
||
|
|
// Parameters:
|
||
|
|
// pDC - A Pointer to the current device context.
|
||
|
|
// rect - Represents the size of the area to paint.
|
||
|
|
// crBack - An RGB color value that represents the background color. If
|
||
|
|
// no value is specified the system face color for three
|
||
|
|
// dimensional display elements is used.
|
||
|
|
// bHorz - If crBack contains gradient colors indicates the direction
|
||
|
|
// of the gradient fill.
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
CXTMemDC(CDC* pDC, const CRect& rect, CXTPPaintManagerColorGradient crBack = GetXtremeColor(COLOR_3DFACE), BOOL bHorz = FALSE);
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
// Summary:
|
||
|
|
// Destroys a CXTMemDC object, handles cleanup and deallocation
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
virtual ~CXTMemDC();
|
||
|
|
|
||
|
|
public:
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
// Summary:
|
||
|
|
// This member function is called to set the valid flag to false
|
||
|
|
// so that the off screen device context will not be drawn.
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
void Discard();
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
// Summary:
|
||
|
|
// This member function gets content from the given DC
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
void FromDC();
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
// Summary:
|
||
|
|
// This member function retrieves a reference to the CBitmap
|
||
|
|
// object associated with the memory device context.
|
||
|
|
// Returns:
|
||
|
|
// A reference to the CBitmap object associated with the memory
|
||
|
|
// device context.
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
CBitmap& GetBitmap();
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
// Summary:
|
||
|
|
// Call this member function to determine if memory was allocated and
|
||
|
|
// the device context was successfully created.
|
||
|
|
// Returns:
|
||
|
|
// TRUE if the device context is valid, otherwise FALSE.
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
BOOL IsValid() const;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
CDC* m_pDC; // Saves the CDC passed in constructor.
|
||
|
|
BOOL m_bValid; // Flag used for autodraw in destructor.
|
||
|
|
CRect m_rc; // Rectangle of the drawing area.
|
||
|
|
CBitmap m_bitmap; // Off screen bitmap.
|
||
|
|
HBITMAP m_hOldBitmap; // Original GDI object.
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif // #if !defined(__XTMEMDC_H__)
|