截图功能实现（五）自绘控件实现（button combobox）

截图工具条上有许多不同的按钮，比如矩形，椭圆等如图这里我采用了自绘Cbutton废话不多说直接上代码

PicButton.h

#pragma once// PicButtonclass PicButton : public CButton{DECLARE_DYNAMIC(PicButton)public:PicButton();virtual ~PicButton();virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct);BOOL CreateBtn(const CPoint &pt, CWnd* pParentWnd, UINT nID, CBitmap*pBmp, int nbtnStlye = 0);afx_msg void OnMouseMove(UINT nFlags, CPoint point);afx_msg void OnLButtonDown(UINT nFlags, CPoint point);afx_msg LRESULT OnMouseHover(WPARAM wParam, LPARAM lParam);afx_msg LRESULT OnMouseLeave(WPARAM wParam, LPARAM lParam);void SetbuttonStlye(const BOOL bStlye){if (bStlye){m_nBtnStatus = BTNSTATUS_DOWN;}else{m_nBtnStatus = BTNSTATUS_NOMAL;}Invalidate(FALSE);}int GetButtonStatus() const{return m_nBtnStatus;}enum//按钮三态{    BTNSTATUS_NOMAL = 0,    BTNSTATUS_OVER,    BTNSTATUS_DOWN};enum//按钮类型{    NOMAL = 0,    INVALID,    SAVEDOWN};protected:DECLARE_MESSAGE_MAP()private:int    m_nBtnStatus;int    m_nBtnStyle;CImageList m_ImageList;public:afx_msg void OnLButtonUp(UINT nFlags, CPoint point);};

PicButton.cpp

/********************************************************/*/* 文件名称：PicButton.cpp/* 摘    要：图片按钮实现/* 当前版本：1.0/* 作    者：/* 创建日期：2013年5月7日星期二*********************************************************/// PicButton.cpp : 实现文件//#include "stdafx.h"#include "PicButton.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endif// PicButtonIMPLEMENT_DYNAMIC(PicButton, CButton)PicButton::PicButton(){m_nBtnStatus = BTNSTATUS_NOMAL;m_nBtnStyle = NOMAL;}PicButton::~PicButton(){m_ImageList.DeleteImageList();}BEGIN_MESSAGE_MAP(PicButton, CButton)ON_WM_DRAWITEM()ON_WM_MOUSEMOVE()ON_WM_LBUTTONDOWN()ON_MESSAGE(WM_MOUSEHOVER, OnMouseHover)ON_MESSAGE(WM_MOUSELEAVE, OnMouseLeave)ON_WM_LBUTTONUP()END_MESSAGE_MAP()void PicButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct){CDC BitmapDC;BitmapDC.Attach(lpDrawItemStruct->hDC);CDC memDC;memDC.CreateCompatibleDC(&BitmapDC);CBitmap bmp;bmp.LoadBitmap(IDB_BMP_BK);CBitmap *pOldBitmap = memDC.SelectObject(&bmp);CRect rtBtn(0,0,0,0);GetClientRect(&rtBtn);m_ImageList.Draw(&memDC, 0, rtBtn.TopLeft(), ILD_TRANSPARENT);if (m_nBtnStyle != 1){if (BTNSTATUS_OVER == m_nBtnStatus){m_ImageList.Draw(&memDC, 1, rtBtn.TopLeft(), ILD_TRANSPARENT);}else if (BTNSTATUS_DOWN == m_nBtnStatus){m_ImageList.Draw(&memDC, 2, rtBtn.TopLeft(), ILD_TRANSPARENT);}}BitmapDC.BitBlt(0, 0, rtBtn.Width(), rtBtn.Height(), &memDC, 0,0, SRCCOPY);memDC.SelectObject(pOldBitmap);memDC.DeleteDC();}BOOL PicButton::CreateBtn(const CPoint &pt, CWnd* pParentWnd, UINT nID, CBitmap*pBmp, int nbtnStlye /* = 0 */)//其中的图片格式是一张图片包含按钮的3个状态{BITMAP bm;pBmp->GetBitmap(&bm);m_nBtnStyle = nbtnStlye;m_ImageList.Create(bm.bmWidth / 3, bm.bmHeight, ILC_COLOR24|ILC_MASK, 3, 3);m_ImageList.Add(pBmp, RGB(0,0,255));CRect rtBtn(pt, CSize(bm.bmWidth /3, bm.bmHeight));return Create(_T(""),WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | BS_OWNERDRAW, rtBtn, pParentWnd, nID);}// PicButton 消息处理程序void PicButton::OnMouseMove(UINT nFlags, CPoint point){TRACKMOUSEEVENT csTME;csTME.cbSize = sizeof (csTME);csTME.dwFlags = TME_LEAVE|TME_HOVER;csTME.hwndTrack = m_hWnd ;// 指定要 追踪 的窗口csTME.dwHoverTime = 5;  // 鼠标在按钮上停留超过 5ms ，才认为状态为 HOVER::_TrackMouseEvent (&csTME); // 开启 Windows 的 WM_MOUSELEAVE ， WM_MOUSEHOVER 事件支持CButton::OnMouseMove(nFlags,point);}LRESULT PicButton::OnMouseHover(WPARAM wParam, LPARAM lParam){if (m_nBtnStatus != BTNSTATUS_DOWN){m_nBtnStatus = BTNSTATUS_OVER;Invalidate(FALSE);}return TRUE;}LRESULT PicButton::OnMouseLeave(WPARAM wParam, LPARAM lParam){if (m_nBtnStatus != BTNSTATUS_DOWN){m_nBtnStatus = BTNSTATUS_NOMAL;Invalidate(FALSE);}return TRUE;}void PicButton::OnLButtonDown(UINT nFlags, CPoint point){if (m_nBtnStatus != BTNSTATUS_DOWN){m_nBtnStatus = BTNSTATUS_DOWN;Invalidate(FALSE);}else{if (m_nBtnStyle == NOMAL){m_nBtnStatus = BTNSTATUS_OVER;Invalidate(FALSE);}}CButton::OnLButtonDown(nFlags,point);}void PicButton::OnLButtonUp(UINT nFlags, CPoint point){// TODO: 在此添加消息处理程序代码和/或调用默认值CRect rect(0,0,0,0);GetClientRect(&rect);if (!rect.PtInRect(point)){m_nBtnStatus = BTNSTATUS_NOMAL;Invalidate(FALSE);}CButton::OnLButtonUp(nFlags, point);}

图片示范样式

combobox自绘实现如图的combobox字号大小选中的combobox

OwnerCombobox.h

#pragma once// COwerComboboxclass COwnerCombobox : public CComboBox{DECLARE_DYNAMIC(COwnerCombobox)public:COwnerCombobox();virtual ~COwnerCombobox();enum{    NOMAL = 0,    OVER,    DOWN};protected:DECLARE_MESSAGE_MAP()public:afx_msg void OnPaint();afx_msg void OnLButtonDown(UINT nFlags, CPoint point);afx_msg void OnLButtonUp(UINT nFlags, CPoint point);afx_msg void OnMouseMove(UINT nFlags, CPoint point);afx_msg LRESULT OnMouseHover(WPARAM wParam, LPARAM lParam);afx_msg LRESULT OnMouseLeave(WPARAM wParam, LPARAM lParam);protected:void DrawShowText(CDC* pDC);private:CImageList m_ImageList;int m_nBmpWidth;int m_nBmpHight;CRect m_rtDrop;CRect m_rt;int m_nStyle;BOOL m_bptInRectDrop;};

// OwerCombobox.cpp : 实现文件//#include "stdafx.h"#include "OwnerCombobox.h"// COwerCombobox#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endifIMPLEMENT_DYNAMIC(COwnerCombobox, CComboBox)COwnerCombobox::COwnerCombobox(){BITMAP bm;CBitmap bmp;bmp.LoadBitmap(IDB_BMP_COMBOB);bmp.GetBitmap(&bm);m_nBmpWidth = bm.bmWidth / 3;m_nBmpHight = bm.bmHeight;m_ImageList.Create(m_nBmpWidth, m_nBmpHight, ILC_COLOR24|ILC_MASK, 3, 3);m_ImageList.Add(&bmp, RGB(0,0,255));m_rtDrop.SetRectEmpty();m_rt.SetRectEmpty();m_bptInRectDrop = FALSE;m_nStyle = NOMAL;}COwnerCombobox::~COwnerCombobox(){}BEGIN_MESSAGE_MAP(COwnerCombobox, CComboBox)ON_WM_PAINT()ON_WM_LBUTTONDOWN()ON_WM_LBUTTONUP()ON_WM_MOUSEMOVE()ON_MESSAGE(WM_MOUSEHOVER, OnMouseHover)ON_MESSAGE(WM_MOUSELEAVE, OnMouseLeave)END_MESSAGE_MAP()// COwerCombobox 消息处理程序void COwnerCombobox::DrawShowText(CDC* pDC){//获取显示文字TCHARstrText[MAX_PATH+1];GetWindowText(strText, MAX_PATH);if (strText==NULL)return;CFont*hOldFont = pDC->SelectObject(GetFont());CSizeszExtent = pDC->GetTextExtent(strText, lstrlen(strText));intnMode = pDC->SetBkMode(TRANSPARENT);CPointpt(2, 3);pDC->DrawState(pt, szExtent, strText, DSS_NORMAL, TRUE, 0, (HBRUSH)NULL);pDC->SelectObject(hOldFont);pDC->SetBkMode(nMode);}void COwnerCombobox::OnPaint(){// TODO: 在此处添加消息处理程序代码CPaintDC dc(this);if (m_rt.IsRectEmpty()){GetClientRect(&m_rt);m_rtDrop = CRect(CPoint(m_rt.right - m_nBmpWidth,m_rt.top), CSize(m_nBmpWidth, m_nBmpHight));}CBrush brush;brush.CreateSolidBrush(RGB(255,255,255));dc.FillRect(&m_rt,&brush);if (m_nStyle == NOMAL){m_ImageList.Draw(&dc, 0,m_rtDrop.TopLeft(), ILD_TRANSPARENT);}else if (m_nStyle == OVER){m_ImageList.Draw(&dc, 1,m_rtDrop.TopLeft(), ILD_TRANSPARENT);}else if (m_nStyle == DOWN){m_ImageList.Draw(&dc, 2,m_rtDrop.TopLeft(), ILD_TRANSPARENT);}brush.DeleteObject();CPoint pt(0,0);GetCursorPos(&pt);ScreenToClient(&pt);if (m_rt.PtInRect(pt)){CPen pen;pen.CreatePen(PS_SOLID, 1, STLYECOLOR);CPen*pOldPen = dc.SelectObject(&pen);dc.SelectStockObject(NULL_BRUSH);dc.Rectangle(&m_rt);dc.SelectObject(pOldPen);}DrawShowText(&dc);// 不为绘图消息调用 CComboBox::OnPaint()}void COwnerCombobox::OnLButtonDown(UINT nFlags, CPoint point){// TODO: 在此添加消息处理程序代码和/或调用默认值m_nStyle = DOWN;Invalidate(FALSE);CComboBox::OnLButtonDown(nFlags, point);}void COwnerCombobox::OnLButtonUp(UINT nFlags, CPoint point){// TODO: 在此添加消息处理程序代码和/或调用默认值m_nStyle = NOMAL;Invalidate(FALSE);CComboBox::OnLButtonUp(nFlags, point);}void COwnerCombobox::OnMouseMove(UINT nFlags, CPoint point){// TODO: 在此添加消息处理程序代码和/或调用默认值TRACKMOUSEEVENT csTME;csTME.cbSize = sizeof (csTME);csTME.dwFlags = TME_LEAVE|TME_HOVER;csTME.hwndTrack = m_hWnd ;// 指定要 追踪 的窗口csTME.dwHoverTime = 5;  // 鼠标在按钮上停留超过 5ms ，才认为状态为 HOVER::_TrackMouseEvent (&csTME); // 开启 Windows 的 WM_MOUSELEAVE ， WM_MOUSEHOVER 事件支持CComboBox::OnMouseMove(nFlags, point);}LRESULT COwnerCombobox::OnMouseHover(WPARAM wParam, LPARAM lParam){CPoint pt(0,0);GetCursorPos(&pt);ScreenToClient(&pt);if (!m_bptInRectDrop && m_rt.PtInRect(pt)){m_bptInRectDrop = TRUE;m_nStyle = OVER;Invalidate(FALSE);}return 0;}LRESULT COwnerCombobox::OnMouseLeave(WPARAM wParam, LPARAM lParam){m_bptInRectDrop = FALSE;m_nStyle = NOMAL;Invalidate(FALSE);return 0;}

图片个格式和上面的一样，我还是把图片也放上来吧

注意吧type 设置为DropList

OK2个控件的自绘就是这样很简单的说