CHoverButton，图像按钮，包括正常，鼠标经过，鼠标按下三个状态

// HoverButton.cpp : implementation file // #include "stdafx.h" #include "HoverButton.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CHoverButton CHoverButton::CHoverButton() { m_bHover = FALSE; m_bTracking = FALSE; } CHoverButton::~CHoverButton() { } IMPLEMENT_DYNAMIC(CHoverButton, CBitmapButton) BEGIN_MESSAGE_MAP(CHoverButton, CBitmapButton) //{{AFX_MSG_MAP(CHoverButton) ON_WM_MOUSEMOVE() ON_MESSAGE(WM_MOUSELEAVE, OnMouseLeave) ON_MESSAGE(WM_MOUSEHOVER, OnMouseHover) ON_WM_LBUTTONDBLCLK() ON_WM_LBUTTONUP() //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////// // CHoverButton message handlers void CHoverButton::OnMouseMove(UINT nFlags, CPoint point) { // TODO: Add your message handler code here and/or call default if (!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); } CBitmapButton::OnMouseMove(nFlags, point); } BOOL CHoverButton::PreTranslateMessage(MSG* pMsg) { // TODO: Add your specialized code here and/or call the base class InitToolTip(); m_ToolTip.RelayEvent(pMsg); return CButton::PreTranslateMessage(pMsg); } // Set the tooltip with a string resource void CHoverButton::SetToolTipText(int nId, BOOL bActivate) { CString sText; // load string resource sText.LoadString(nId); // If string resource is not empty if (sText.IsEmpty() == FALSE) SetToolTipText(&sText, bActivate); } // Set the tooltip with a CString void CHoverButton::SetToolTipText(CString *spText, BOOL bActivate) { // We cannot accept NULL pointer if (spText == NULL) return; // Initialize ToolTip InitToolTip(); // If there is no tooltip defined then add it if (m_ToolTip.GetToolCount() == 0) { CRect rectBtn; GetClientRect(rectBtn); m_ToolTip.AddTool(this, (LPCTSTR)*spText, rectBtn, 1); } // Set text for tooltip m_ToolTip.UpdateTipText((LPCTSTR)*spText, this, 1); m_ToolTip.Activate(bActivate); } void CHoverButton::InitToolTip() { if (m_ToolTip.m_hWnd == NULL) { // Create ToolTip control m_ToolTip.Create(this); // Create inactive m_ToolTip.Activate(FALSE); } } // End of InitToolTip // Activate the tooltip void CHoverButton::ActivateTooltip(BOOL bActivate) { // If there is no tooltip then do nothing if (m_ToolTip.GetToolCount() == 0) return; // Activate tooltip m_ToolTip.Activate(bActivate); } // End of EnableTooltip void CHoverButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) { // TODO: Add your code to draw the specified item CRect r_app; int w,h; this->GetClientRect(&r_app); this->ClientToScreen(&r_app); w=r_app.right-r_app.left; h=r_app.bottom-r_app.top; CDC *mydc=CDC::FromHandle(lpDrawItemStruct->hDC); CDC * pMemDC = new CDC; pMemDC -> CreateCompatibleDC(mydc); CBitmap * pOldBitmap; CBitmap * pNormalBitmap; CBitmap * pHoverBitmap; CBitmap * pClickBitmap; pNormalBitmap = pMemDC -> SelectObject(&mybitmap); BITMAP bm; CPoint point(0,0); if(lpDrawItemStruct->itemState & ODS_SELECTED) { my_click.GetBitmap(&bm); pMemDC->SelectObject(&my_click); pMemDC->SetStretchBltMode(STRETCH_DELETESCANS); //mydc->BitBlt(0,0,m_ButtonSize.cx,m_ButtonSize.cy,pMemDC,0,0,SRCCOPY); mydc->StretchBlt(0,0,w,h,pMemDC,0,0,bm.bmWidth,bm.bmHeight,SRCCOPY); } else { if(m_bHover) { my_hover.GetBitmap(&bm); pMemDC->SelectObject(&my_hover); pMemDC->SetStretchBltMode(STRETCH_DELETESCANS); //mydc->BitBlt(0,0,m_ButtonSize.cx,m_ButtonSize.cy,pMemDC,0,0,SRCCOPY); mydc->StretchBlt(0,0,w,h,pMemDC,0,0,bm.bmWidth,bm.bmHeight,SRCCOPY); }else { pMemDC ->SelectObject(&my_normal); my_normal.GetBitmap(&bm); pMemDC->SetStretchBltMode(STRETCH_DELETESCANS); //mydc->BitBlt(0,0,m_ButtonSize.cx,m_ButtonSize.cy,pMemDC,0,0,SRCCOPY); mydc->StretchBlt(0,0,w,h,pMemDC,0,0,bm.bmWidth,bm.bmHeight,SRCCOPY); } } // clean up pMemDC -> SelectObject(pNormalBitmap); delete pMemDC; } // Load a bitmap from the resources in the button, the bitmap has to have 3 buttonsstates next to each other: Up/Down/Hover BOOL CHoverButton::LoadBitmap(UINT bitmapid) { mybitmap.Attach(::LoadImage(::AfxGetInstanceHandle(),MAKEINTRESOURCE(bitmapid), IMAGE_BITMAP,0,0,LR_LOADMAP3DCOLORS)); BITMAP bitmapbits; mybitmap.GetBitmap(&bitmapbits); m_ButtonSize.cy=bitmapbits.bmHeight; m_ButtonSize.cx=bitmapbits.bmWidth; SetWindowPos( NULL, 0,0, m_ButtonSize.cx,m_ButtonSize.cy,SWP_NOMOVE |SWP_NOOWNERZORDER ); return TRUE; } BOOL CHoverButton::LoadBitmap(CString normal_name,CString hover_name,CString click_name) { my_normal.Detach(); my_click.Detach(); my_hover.Detach(); my_normal.Attach(::LoadImage(0, normal_name, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE)); my_click.Attach(::LoadImage(0, click_name, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE)); my_hover.Attach(::LoadImage(0, hover_name, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE)); return TRUE; } BOOL CHoverButton::LoadBitmap(UINT id_normal,UINT id_hover,UINT id_click) { my_normal.Attach(::LoadImage(::AfxGetInstanceHandle(),MAKEINTRESOURCE(id_normal), IMAGE_BITMAP,0,0,LR_LOADMAP3DCOLORS)); my_click.Attach(::LoadImage(::AfxGetInstanceHandle(),MAKEINTRESOURCE(id_click), IMAGE_BITMAP,0,0,LR_LOADMAP3DCOLORS)); my_hover.Attach(::LoadImage(::AfxGetInstanceHandle(),MAKEINTRESOURCE(id_hover), IMAGE_BITMAP,0,0,LR_LOADMAP3DCOLORS)); BITMAP bitmapbits; my_normal.GetBitmap(&bitmapbits); m_ButtonSize.cy=bitmapbits.bmHeight; m_ButtonSize.cx=bitmapbits.bmWidth; //SetWindowPos( NULL, 0,0, m_ButtonSize.cx,m_ButtonSize.cy,SWP_NOMOVE |SWP_NOOWNERZORDER ); return TRUE; } LRESULT CHoverButton::OnMouseHover(WPARAM wparam, LPARAM lparam) { // TODO: Add your message handler code here and/or call default m_bHover=TRUE; Invalidate(); return true; } LRESULT CHoverButton::OnMouseLeave(WPARAM wparam, LPARAM lparam) { m_bTracking = FALSE; m_bHover=FALSE; Invalidate(); return 0; } void CHoverButton::OnLButtonDblClk(UINT nFlags, CPoint point) { // TODO: Add your message handler code here and/or call default CBitmapButton::OnLButtonDblClk(nFlags, point); } void CHoverButton::OnLButtonUp(UINT nFlags, CPoint point) { // TODO: Add your message handler code here and/or call default // Set text for tooltip m_ToolTip.Activate(TRUE); CBitmapButton::OnLButtonUp(nFlags, point); }