www.pudn.com > 200308141526117224仿MSN(网易泡泡)界面.rar > ImageSelector.cpp

/*************************************************************************** 
 *                                                                         * 
 *   This program is free software; you can redistribute it and/or modify  * 
 *   it under the terms of the GNU General Public License as published by  * 
 *   the Free Software Foundation; either version 2 of the License, or     * 
 *   (at your option) any later version.                                   * 
 *                                                                         * 
 *   copyright            : (C) 2002 by Zhang Yong                         * 
 *   email                : z-yong163@163.com                              * 
 ***************************************************************************/ 
 
// ImageSelector.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "ImageSelector.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
#define ID_TOOLTIP		1000 
 
#define BUTTON_SIZE		32 
#define IMAGE_OFFSET		3 
 
///////////////////////////////////////////////////////////////////////////// 
// ImageSelector 
 
ImageSelector::ImageSelector(CImageList *il, const char *tips[], int x, int y, int cols, CWnd *parent) 
{ 
	imageList = il; 
	nrColumns = cols; 
 
	lastSelectRow = lastSelectCol = -1; 
 
	int n = imageList->GetImageCount(); 
 
	IMAGEINFO ii; 
	imageList->GetImageInfo(0, &ii); 
	CRect rc(ii.rcImage); 
	buttonSize.cx = rc.Width() + IMAGE_OFFSET * 2; 
	buttonSize.cy = rc.Height() + IMAGE_OFFSET * 2; 
 
	LPCTSTR className = AfxRegisterWndClass( 
		CS_DBLCLKS, 
		AfxGetApp()->LoadCursor(IDC_ARROW), 
		CreateSolidBrush(GetSysColor(COLOR_BTNFACE))); 
 
	CreateEx( 
		0, 
		className, 
		NULL, 
		WS_VISIBLE | WS_CHILD | WS_POPUP | WS_BORDER, 
		x, 
		y, 
		(n < cols ? n : cols) * buttonSize.cx, 
		((n + 1) / cols) * buttonSize.cy, 
		*parent, 
		NULL); 
 
	toolTip.Create(this, 0); 
	toolTip.SetTipTextColor(RGB(0, 128, 128)); 
 
	for (int i = 0; i < n; ++i) { 
		rc.left = (i % cols) * buttonSize.cx; 
		rc.top = (i / cols) * buttonSize.cy; 
		rc.right = rc.left + buttonSize.cx; 
		rc.bottom = rc.top + buttonSize.cy; 
		toolTip.AddTool(this, tips[i], rc, ID_TOOLTIP + i); 
	} 
 
	SetOwner(parent); 
} 
 
ImageSelector::~ImageSelector() 
{ 
} 
 
void ImageSelector::drawButton(CDC *pDC, int row, int col, BOOL erase) 
{ 
	int x = col * buttonSize.cx; 
	int y = row * buttonSize.cy; 
 
	COLORREF lightColor, shadowColor; 
 
	if (erase) 
		lightColor = shadowColor = GetSysColor(COLOR_BTNFACE); 
	else { 
		lightColor = GetSysColor(COLOR_BTNHILIGHT); 
		shadowColor = GetSysColor(COLOR_BTNSHADOW); 
	} 
 
	pDC->Draw3dRect(x, y, buttonSize.cx, buttonSize.cy, lightColor, shadowColor); 
} 
 
BEGIN_MESSAGE_MAP(ImageSelector, CWnd) 
	//{{AFX_MSG_MAP(ImageSelector) 
	ON_WM_PAINT() 
	ON_WM_KILLFOCUS() 
	ON_WM_MOUSEMOVE() 
	ON_WM_LBUTTONDOWN() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
 
///////////////////////////////////////////////////////////////////////////// 
// ImageSelector message handlers 
 
void ImageSelector::OnPaint()  
{ 
	CPaintDC dc(this); // device context for painting 
	 
	int n = imageList->GetImageCount(); 
	for (int i = 0; i < n; ++i) { 
		int x = (i % nrColumns) * buttonSize.cx + IMAGE_OFFSET; 
		int y = (i / nrColumns) * buttonSize.cy + IMAGE_OFFSET; 
		imageList->Draw(&dc, i, CPoint(x, y), ILD_TRANSPARENT); 
	} 
	 
	// Do not call CWnd::OnPaint() for painting messages 
} 
 
void ImageSelector::PostNcDestroy()  
{ 
	delete this; 
} 
 
void ImageSelector::OnKillFocus(CWnd* pNewWnd)  
{ 
	CWnd::OnKillFocus(pNewWnd); 
	 
	DestroyWindow(); 
} 
 
void ImageSelector::OnMouseMove(UINT nFlags, CPoint point)  
{ 
	int row = point.y / buttonSize.cy; 
	int col = point.x / buttonSize.cx; 
 
	if (lastSelectRow != row || lastSelectCol != col) { 
		CClientDC dc(this); 
 
		if (lastSelectRow >= 0 && lastSelectCol >= 0) 
			drawButton(&dc, lastSelectRow, lastSelectCol, TRUE); 
		drawButton(&dc, row, col, FALSE); 
 
		lastSelectRow = row; 
		lastSelectCol = col; 
	} 
	 
	CWnd::OnMouseMove(nFlags, point); 
} 
 
void ImageSelector::OnLButtonDown(UINT nFlags, CPoint point)  
{ 
	if (lastSelectRow >= 0 && lastSelectCol >= 0) { 
		int i = lastSelectRow * nrColumns + lastSelectCol; 
		GetOwner()->SendMessage(WM_COMMAND, ID_IMAGE0 + i, (LPARAM) m_hWnd); 
	} 
 
	DestroyWindow(); 
} 
 
BOOL ImageSelector::PreTranslateMessage(MSG* pMsg)  
{ 
	if (pMsg->hwnd == m_hWnd) 
		toolTip.RelayEvent(pMsg); 
	 
	return CWnd::PreTranslateMessage(pMsg); 
}