c++ 旋转的图像(遮罩贴图)示例源码

【实例截图】

【核心代码】

// mainfrm.cpp : implementation of the CMainFrame class
//
// This is a part of the Microsoft Foundation Classes C   library.
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
// This source code is only intended as a supplement to the
// Microsoft Foundation Classes Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Microsoft Foundation Classes product.

#include "stdafx.h"
#include "MaskTexture.h"

#include "MaskTexturedoc.h"
#include "MaskTextureview.h"
#include "mainfrm.h"

#ifdef _DEBUG
#undef THIS_FILE
static char BASED_CODE THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CMainFrame

IMPLEMENT_DYNCREATE(CMainFrame, CFrameWnd)

BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)
	//{{AFX_MSG_MAP(CMainFrame)
	ON_WM_CREATE()
	ON_WM_PALETTECHANGED()
	ON_WM_QUERYNEWPALETTE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// arrays of IDs used to initialize control bars

// toolbar buttons - IDs are command buttons
static UINT BASED_CODE buttons[] =
{
	// same order as in the bitmap 'toolbar.bmp'
	ID_FILE_PLAY,
	ID_APP_ABOUT,
};

/////////////////////////////////////////////////////////////////////////////
// CMainFrame construction/destruction

CMainFrame::CMainFrame()
{
	// TODO: add member initialization code here

}

CMainFrame::~CMainFrame()
{
}

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;

	if (!m_wndToolBar.Create(this) ||
		!m_wndToolBar.LoadBitmap(IDR_MAINFRAME) ||
		!m_wndToolBar.SetButtons(buttons,
		  sizeof(buttons)/sizeof(UINT)))
	{
		TRACE0(_T("Failed to create toolbar\n"));
		return -1;      // fail to create
	}

	// TODO: Delete these three lines if you don't want the toolbar to
	//  be dockable
	m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);
	EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&m_wndToolBar);

	// TODO: Remove this if you don't want tool tips
	m_wndToolBar.SetBarStyle(m_wndToolBar.GetBarStyle() |
		CBRS_TOOLTIPS | CBRS_FLYBY);

	return 0;
}

/////////////////////////////////////////////////////////////////////////////
// CMainFrame diagnostics

#ifdef _DEBUG
void CMainFrame::AssertValid() const
{
	CFrameWnd::AssertValid();
}

void CMainFrame::Dump(CDumpContext& dc) const
{
	CFrameWnd::Dump(dc);
}

#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMainFrame message handlers

void CMainFrame::OnPaletteChanged(CWnd* pFocusWnd)
{
	CFrameWnd::OnPaletteChanged(pFocusWnd);

	if(pFocusWnd != this)
		OnQueryNewPalette();
}

BOOL CMainFrame::OnQueryNewPalette()
{
	int        i;
	CPalette    *pOldPal;
	CMaskTextureView   *pView = (CMaskTextureView *)GetActiveView();
	CClientDC   dc(pView);


	pOldPal = dc.SelectPalette(&pView->m_cPalette, FALSE);
	i = dc.RealizePalette();
	dc.SelectPalette(pOldPal, FALSE);

	if(i > 0)
		InvalidateRect(NULL);


	return CFrameWnd::OnQueryNewPalette();
}

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	// remove this flag to remove " - Untitled" from the frame's caption

	cs.style &= ~ FWS_ADDTOTITLE;

	return CFrameWnd::PreCreateWindow(cs);
}