paint.cpp

Visual C++下的界面设计

// Paint.cpp: helper functions used when drawing bitmaps on the dialogs
//
// Copyright (c) 1985-1995, Microsoft Corporation. All rights reserved.
//

#include "stdafx.h"
#include "Propsheet Wizard.h"

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


// Coordinates for yellow rectangle in dialog-box units
#define RIGHT_YELLOW_DLGU	124
#define BOTTOM_YELLOW_DLGU	197

// Draws a background of yellow on the left side of the dialog
void PaintBackground (CDC &dc, CDialog *pDlg)
{
	//	Get the yellow brush
	CBitmap pattern;
	pattern.LoadBitmap (IDB_YELLOW_PATTERN);
	CBrush brush (&pattern);

	// Draw the yellow background
	CRect rect (0, 0, RIGHT_YELLOW_DLGU+1, BOTTOM_YELLOW_DLGU+1);
	pDlg->MapDialogRect (&rect);
	dc.DPtoLP (&rect);
	dc.FillRect (&rect, &brush);
}

// Draw the specified bitmap at the specified location
void PaintBitmap (UINT nBmp, int x, int y, int nWidth, int nHeight,
	CDC &dc)
{
	CDC mdc;
	if (!mdc.CreateCompatibleDC (&dc))
		return;

	CBitmap picture;

	// Load & select the bitmap into the device-context
	picture.LoadBitmap (nBmp);
	BITMAP bitmap;
	picture.GetObject (sizeof (BITMAP), &bitmap);

	CBitmap* pOldBitmap = mdc.SelectObject (&picture);

	ASSERT (nWidth == bitmap.bmWidth);
	ASSERT (nHeight == bitmap.bmHeight);

	// Draw the bitmap
	dc.BitBlt (x, y, nWidth, nHeight, &mdc, 0, 0, SRCCOPY);

	// Reselect the previous bitmap object
	mdc.SelectObject (pOldBitmap);
}