CXPButton类的实现

/************************************************************************//* CXPButton.h *//************************************************************************/#if !defined(AFX_XPBUTTON_H__44CD5B2A_756E_4939_9261_E0034E0F2DEF__INCLUDED_)#define AFX_XPBUTTON_H__44CD5B2A_756E_4939_9261_E0034E0F2DEF__INCLUDED_#if _MSC_VER > 1000#pragma once#endif // _MSC_VER > 1000// XPButton.h : header file///////////////////////////////////////////////////////////////////////////////// CXPButton windowclass CXPButton : public CButton{// Constructionpublic:CXPButton();// Attributesprotected://按钮的外边框CPen m_BoundryPen;//鼠标指针置于按钮之上时按钮的内边框CPen m_InsideBoundryPenLeft;CPen m_InsideBoundryPenRight;CPen m_InsideBoundryPenTop;CPen m_InsideBoundryPenBottom;//按钮获得焦点时按钮的内边框CPen m_InsideBoundryPenLeftSel;CPen m_InsideBoundryPenRightSel;CPen m_InsideBoundryPenTopSel;CPen m_InsideBoundryPenBottomSel;//按钮的底色，包括有效和无效两种状态CBrush m_FillActive;CBrush m_FillInactive;//按钮的状态BOOL m_bOver;//鼠标位于按钮之上时该值为true，反之为flaseBOOL m_bTracking;//在鼠标按下没有释放时该值为trueBOOL m_bSelected;//按钮被按下是该值为trueBOOL m_bFocus;//按钮为当前焦点所在时该值为true// Operationspublic:// Overrides// ClassWizard generated virtual function overrides//{{AFX_VIRTUAL(CXPButton)protected:virtual void PreSubclassWindow();//}}AFX_VIRTUAL// Implementationpublic:virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct);virtual void DoGradientFill(CDC *pDC, CRect* rect);virtual void DrawInsideBorder(CDC *pDC, CRect* rect);virtual ~CXPButton();// Generated message map functionsprotected://{{AFX_MSG(CXPButton)afx_msg void OnMouseMove(UINT nFlags, CPoint point);afx_msg LRESULT OnMouseLeave(WPARAM wParam, LPARAM lParam);afx_msg LRESULT OnMouseHover(WPARAM wParam, LPARAM lParam);afx_msg BOOL OnEraseBkgnd(CDC* pDC);//}}AFX_MSGDECLARE_MESSAGE_MAP()};///////////////////////////////////////////////////////////////////////////////{{AFX_INSERT_LOCATION}}// Microsoft Visual C++ will insert additional declarations immediately before the previous line.#endif // !defined(AFX_XPBUTTON_H__44CD5B2A_756E_4939_9261_E0034E0F2DEF__INCLUDED_)

 

 

// XPButton.cpp : implementation file//#include "stdafx.h"#include "XPButton.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endif/////////////////////////////////////////////////////////////////////////////// CXPButtonCXPButton::CXPButton(){m_BoundryPen.CreatePen(PS_INSIDEFRAME | PS_SOLID, 1, RGB(55, 98, 6));m_InsideBoundryPenLeft.CreatePen(PS_INSIDEFRAME | PS_SOLID, 3, RGB(159,175,127)); m_InsideBoundryPenRight.CreatePen(PS_INSIDEFRAME | PS_SOLID, 3, RGB(160,180,130));m_InsideBoundryPenTop.CreatePen(PS_INSIDEFRAME | PS_SOLID, 2, RGB(161,190,143));m_InsideBoundryPenBottom.CreatePen(PS_INSIDEFRAME | PS_SOLID, 2, RGB(140,155,0));m_FillActive.CreateSolidBrush(RGB(236,233,216));m_FillInactive.CreateSolidBrush(RGB(235, 234, 216));m_InsideBoundryPenLeftSel.CreatePen(PS_INSIDEFRAME | PS_SOLID, 3, RGB(153, 198, 252)); m_InsideBoundryPenTopSel.CreatePen(PS_INSIDEFRAME | PS_SOLID, 2, RGB(162, 201, 255));m_InsideBoundryPenRightSel.CreatePen(PS_INSIDEFRAME | PS_SOLID, 3, RGB(162, 189, 252));m_InsideBoundryPenBottomSel.CreatePen(PS_INSIDEFRAME | PS_SOLID, 2, RGB(162, 201, 255));m_bOver = m_bSelected = m_bTracking = m_bFocus = FALSE;}CXPButton::~CXPButton(){m_BoundryPen.DeleteObject();m_InsideBoundryPenLeft.DeleteObject();m_InsideBoundryPenRight.DeleteObject();m_InsideBoundryPenTop.DeleteObject();m_InsideBoundryPenBottom.DeleteObject();m_FillActive.DeleteObject();m_FillInactive.DeleteObject();m_InsideBoundryPenLeftSel.DeleteObject();m_InsideBoundryPenTopSel.DeleteObject();m_InsideBoundryPenRightSel.DeleteObject();m_InsideBoundryPenBottomSel.DeleteObject();}BEGIN_MESSAGE_MAP(CXPButton, CButton)//{{AFX_MSG_MAP(CXPButton)ON_WM_MOUSEMOVE()ON_MESSAGE(WM_MOUSELEAVE, OnMouseLeave)ON_MESSAGE(WM_MOUSEHOVER, OnMouseHover)ON_WM_ERASEBKGND()//}}AFX_MSG_MAPEND_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////// CXPButton message handlers//添加Owner Draw属性void CXPButton::PreSubclassWindow() {// TODO: Add your specialized code here and/or call the base classCButton::PreSubclassWindow();ModifyStyle(0, BS_OWNERDRAW);//设置按钮的有效区域CRgn rgn;CRect rc;GetClientRect(&rc);//有效区域为一个角半径为5的圆角矩形rgn.CreateRoundRectRgn(rc.left,rc.top,rc.right,rc.bottom,5,5);SetWindowRgn(rgn,TRUE);rgn.DeleteObject();}void CXPButton::OnMouseMove(UINT nFlags, CPoint point) {// TODO: Add your message handler code here and/or call defaultif (!m_bTracking){TRACKMOUSEEVENT tme;tme.cbSize = sizeof(tme);tme.hwndTrack = m_hWnd;tme.dwFlags = TME_LEAVE | TME_HOVER;tme.dwHoverTime = 1;m_bTracking = _TrackMouseEvent(&tme);}CButton::OnMouseMove(nFlags, point);}LRESULT CXPButton::OnMouseLeave(WPARAM wParam, LPARAM lParam){m_bOver = FALSE;m_bTracking = FALSE;InvalidateRect(NULL, FALSE);return 0;}LRESULT CXPButton::OnMouseHover(WPARAM wParam, LPARAM lParam){m_bOver = TRUE;InvalidateRect(NULL);return 0;}void CXPButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct){//从lpDrawItemStruct获取控件的相关信息CRect rect = lpDrawItemStruct->rcItem;CDC *pDC=CDC::FromHandle(lpDrawItemStruct->hDC);int nSaveDC=pDC->SaveDC();UINT state = lpDrawItemStruct->itemState;POINT pt ;TCHAR strText[MAX_PATH + 1];::GetWindowText(m_hWnd, strText, MAX_PATH);//画按钮的外边框，它是一个半径为5的圆角矩形pt.x = 5;pt.y = 5;CPen* hOldPen = pDC->SelectObject(&m_BoundryPen);pDC->RoundRect(&rect, pt);//获取按钮的状态if (state & ODS_FOCUS){m_bFocus = TRUE;m_bSelected = TRUE;}else{m_bFocus = FALSE;m_bSelected = FALSE;}if (state & ODS_SELECTED || state & ODS_DEFAULT){m_bFocus = TRUE;}pDC->SelectObject(hOldPen);rect.DeflateRect(CSize(GetSystemMetrics(SM_CXEDGE), GetSystemMetrics(SM_CYEDGE)));//根据按钮的状态填充按钮的底色CBrush* pOldBrush;if (m_bOver){pOldBrush = pDC->SelectObject(&m_FillActive);DoGradientFill(pDC, &rect);}else{pOldBrush = pDC->SelectObject(&m_FillInactive);DoGradientFill(pDC, &rect);}//根据按钮的状态绘制内边框if (m_bOver || m_bSelected)DrawInsideBorder(pDC, &rect);pDC->SelectObject(pOldBrush);//显示按钮的文本if (strText!=NULL){CFont* hFont = GetFont();CFont* hOldFont = pDC->SelectObject(hFont);CSize szExtent = pDC->GetTextExtent(strText, lstrlen(strText));CPoint pt( rect.CenterPoint().x - szExtent.cx / 2, rect.CenterPoint().y - szExtent.cy / 2);if (state & ODS_SELECTED) pt.Offset(1, 1);int nMode = pDC->SetBkMode(TRANSPARENT);if (state & ODS_DISABLED)pDC->DrawState(pt, szExtent, strText, DSS_DISABLED, TRUE, 0, (HBRUSH)NULL);elsepDC->DrawState(pt, szExtent, strText, DSS_NORMAL, TRUE, 0, (HBRUSH)NULL);pDC->SelectObject(hOldFont);pDC->SetBkMode(nMode);}pDC->RestoreDC(nSaveDC);}//绘制按钮的底色void CXPButton::DoGradientFill(CDC *pDC, CRect* rect){CBrush brBk[64];int nWidth = rect->Width();int nHeight = rect->Height();CRect rct;int i;for (i = 0; i < 64; i ++){if (m_bOver){if (m_bFocus)brBk[i].CreateSolidBrush(RGB(255 - (i / 4), 255 - (i / 4), 255 - (i / 3)));elsebrBk[i].CreateSolidBrush(RGB(255 - (i / 4), 255 - (i / 4), 255 - (i / 5)));}else{if (m_bFocus)brBk[i].CreateSolidBrush(RGB(255 - (i / 3), 255 - (i / 3), 255 - (i / 4)));elsebrBk[i].CreateSolidBrush(RGB(255 - (i / 3), 255 - (i / 3), 255 - (i / 5)));}}for (i = rect->top; i <= nHeight + 2; i ++) {rct.SetRect(rect->left, i, nWidth + 2, i + 1);pDC->FillRect(&rct, &brBk[((i * 63) / nHeight)]);}for (i = 0; i < 64; i ++)brBk[i].DeleteObject();}//绘制按钮的内边框void CXPButton::DrawInsideBorder(CDC *pDC, CRect* rect){CPen *pLeft, *pRight, *pTop, *pBottom;if (m_bSelected && !m_bOver){pLeft = & m_InsideBoundryPenLeftSel;pRight = &m_InsideBoundryPenRightSel;pTop = &m_InsideBoundryPenTopSel;pBottom = &m_InsideBoundryPenBottomSel;}else{pLeft = &m_InsideBoundryPenLeft;pRight = &m_InsideBoundryPenRight;pTop = &m_InsideBoundryPenTop;pBottom = &m_InsideBoundryPenBottom;}CPoint oldPoint = pDC->MoveTo(rect->left, rect->bottom - 1);CPen* pOldPen = pDC->SelectObject(pLeft);pDC->LineTo(rect->left, rect->top + 1);pDC->SelectObject(pRight);pDC->MoveTo(rect->right - 1, rect->bottom - 1);pDC->LineTo(rect->right - 1, rect->top);pDC->SelectObject(pTop);pDC->MoveTo(rect->left - 1, rect->top);pDC->LineTo(rect->right - 1, rect->top);pDC->SelectObject(pBottom);pDC->MoveTo(rect->left, rect->bottom);pDC->LineTo(rect->right - 1, rect->bottom);pDC->SelectObject(pOldPen);pDC->MoveTo(oldPoint);if (m_bSelected && !m_bOver)DrawFocusRect(pDC->m_hDC,rect);}BOOL CXPButton::OnEraseBkgnd(CDC* pDC) {//禁止绘制底色return TRUE;}