PBNI接口例子(VisualObject)

//*************************************************************************** // Filename: Btn.cpp // Description: // // Copyright: Copyright (C) 2002 by negerns //*************************************************************************** // Date: 4 Aug 2002 18:02 // Author: negerns //*************************************************************************** // DISCLAIMER // This software and the accompanying files are distributed "as is" and // without any warranties whether expressed or implied. No responsibilities // for possible damages or even functionality can be taken. The user must // assume the entire risk of using this source code. //*************************************************************************** #include "VISUALPBNI.H" //#include "stdafx.h" #include "Btn.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif //*************************************************************************** // CBtn Construction/Destruction CBtn::CBtn() { m_hIcon = NULL; m_dwIconWidth = 0; m_dwIconHeight = 0; m_clrBtnPressed = m_clrBtnUnpressed = ::GetSysColor(COLOR_BTNFACE); m_clrTextPressed = m_clrTextUnpressed = ::GetSysColor(COLOR_BTNTEXT); m_bIsPressed = FALSE; m_bIsHovering = FALSE; m_bHasDD = FALSE; m_bHasBorder = TRUE; /* // Create the CFont = Arial 8pt Bold LOGFONT lf; memset(&lf, 0, sizeof(LOGFONT)); lf.lfHeight = 14; lf.lfWeight = FW_NORMAL; //FW_BOLD; strcpy(lf.lfFaceName, "Arial"); m_cfFont.CreateFontIndirect(&lf); */ } CBtn::~CBtn() { // Destroy icon if (m_hIcon) ::DestroyIcon(m_hIcon); ::ZeroMemory(&m_hIcon, sizeof(m_hIcon)); m_cfFont.DeleteObject(); ::ZeroMemory(&m_cfFont, sizeof(m_cfFont)); } BEGIN_MESSAGE_MAP(CBtn, CButton) //{{AFX_MSG_MAP(CBtn) ON_WM_MOUSEMOVE() ON_WM_NCDESTROY() ON_WM_SYSCOLORCHANGE() ON_WM_LBUTTONUP() ON_WM_KEYUP() //}}AFX_MSG_MAP ON_MESSAGE(WM_MOUSELEAVE, OnMouseLeave) END_MESSAGE_MAP() //*************************************************************************** // CBtn message handlers void CBtn::SetPBSession(IPB_Session* session, pbobject pbobj) { m_pIPB_Session = session; m_pbobj = pbobj; } void CBtn::OnMouseMove(UINT nFlags, CPoint point) { TRACKMOUSEEVENT csTME; CButton::OnMouseMove(nFlags, point); ClientToScreen(&point); CRect rc; GetWindowRect(rc); if (rc.PtInRect(point)) // Check if the mouse is currently over our control //if(WindowFromPoint(point)->m_hWnd == m_hWnd) { // We need only set the hovering flag if it is not yet set if (!m_bIsHovering) { // Set our hovering flag then redraw m_bIsHovering = TRUE; Invalidate(); // Post a WM_MOUSELEAVE message csTME.cbSize = sizeof(csTME); csTME.dwFlags = TME_LEAVE; csTME.hwndTrack = m_hWnd; ::_TrackMouseEvent(&csTME); } } else { m_bIsHovering = FALSE; Invalidate(); } } LRESULT CBtn::OnMouseLeave(WPARAM wParam, LPARAM lParam) { // When the mouse leaves our control, set the flag and redraw m_bIsHovering = FALSE; Invalidate(); return 0; } void CBtn::DrawItem(LPDRAWITEMSTRUCT lpDIS) { CRect rc = lpDIS->rcItem; CDC* pDC = CDC::FromHandle(lpDIS->hDC); m_bIsPressed = (lpDIS->itemState & ODS_SELECTED); m_bIsDisabled = (lpDIS->itemState & ODS_DISABLED); m_bHasFocus = (lpDIS->itemState & ODS_FOCUS); // Draw the control OnDrawBorder(pDC, rc); // If there's an icon, draw it if (m_hIcon != NULL) OnDrawIcon(pDC, rc); OnDrawText(pDC, rc); // Draw the focus rect if (m_bHasFocus) { rc.DeflateRect(3, 3); if (m_bHasDD) rc.right -= DDBTNWIDTH; pDC->DrawFocusRect(rc); } } void CBtn::PreSubclassWindow() { // Set initial control type m_nStyle = GetButtonStyle() & BS_PUSHBUTTON; // WARNING: Do not set the OwnerDraw before PreSubclassWindow(). // Do not use the resource editor's OwnerDraw or ModifyStyle(0, BS_OWNERDRAW) ASSERT(m_nStyle != BS_OWNERDRAW); ModifyStyle(0, BS_OWNERDRAW, SWP_FRAMECHANGED); CButton::PreSubclassWindow(); // Set the text font // Create the font LOGFONT lf; memset(&lf, 0, sizeof(LOGFONT)); // Arial ht = 14 // Tahoma ht = 13 lf.lfHeight = 14; lf.lfWeight = FW_NORMAL; strcpy(lf.lfFaceName, "Arial"); m_cfFont.CreateFontIndirect(&lf); SetFont(&m_cfFont); } LRESULT CBtn::DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam) { // Double click = 2 single clicks if (message == WM_LBUTTONDBLCLK) message = WM_LBUTTONDOWN; return CButton::DefWindowProc(message, wParam, lParam); } DWORD CBtn::OnDrawBorder(CDC* pDC, CRect rc) //*************************************************************************** // Description: Draw the control border according to the current state. // Parameter: CDC* pDC - Drawing context. // CRect rc - Coordinates to draw the border. // Return Value: // Author: negerns // Created: 27 Jul 2002 23:57 //*************************************************************************** { // What color is the background color? // This is the code for highlighting the button. // TODO: Do this? /* if (m_bIsHovering) { const double factor = 0.8; COLORREF col = ::GetSysColor(COLOR_BTNFACE); if (factor > 0.0 && factor <= 1.0) { BYTE red,green,blue,lightred,lightgreen,lightblue; red = GetRValue(col); green = GetGValue(col); blue = GetBValue(col); lightred = (BYTE)((factor*(255-red)) + red); lightgreen = (BYTE)((factor*(255-green)) + green); lightblue = (BYTE)((factor*(255-blue)) + blue); col = RGB(lightred,lightgreen,lightblue); } pDC->FillSolidRect(rc, (m_bIsPressed ? col : col)); } else pDC->FillSolidRect(rc, (m_bIsPressed ? m_clrBtnPressed : m_clrBtnUnpressed)); */ pDC->FillSolidRect(rc, (m_bIsPressed ? m_clrBtnPressed : m_clrBtnUnpressed)); if (m_bIsPressed) pDC->DrawEdge(rc, EDGE_SUNKEN, BF_RECT); else pDC->DrawEdge(rc, (m_bIsHovering ? EDGE_RAISED : EDGE_ETCHED), BF_RECT); // Draw the split if (m_bHasDD) { CRect rectSplit(rc); rectSplit.DeflateRect(2, 2); rectSplit.right -= DDBTNWIDTH; // left offset for the splitter CPen brShadow(PS_SOLID, 1, GetSysColor(COLOR_3DSHADOW)); pDC->SelectObject(&brShadow); pDC->MoveTo(rectSplit.right, rectSplit.top); pDC->LineTo(rectSplit.right, rectSplit.bottom); CPen brHiLight(PS_SOLID, 1, GetSysColor(COLOR_3DHILIGHT)); pDC->SelectObject(&brHiLight); pDC->MoveTo(rectSplit.right + 1, rectSplit.top); pDC->LineTo(rectSplit.right + 1, rectSplit.bottom); rectSplit.left = rectSplit.right; rectSplit.right += DDBTNWIDTH; CPoint pt(rectSplit.CenterPoint()); pt += CPoint(0, 1); CPen brTextColor(PS_SOLID, 1, m_bIsDisabled ? GetSysColor(COLOR_GRAYTEXT) : GetSysColor(COLOR_WINDOWTEXT)); pDC->SelectObject(&brTextColor); DrawArrow(pDC, pt); } return 0; } DWORD CBtn::OnDrawIcon(CDC* pDC, CRect rc) //*************************************************************************** // Description: Draw the control icon according to the current state. // Parameter: CDC* pDC - Drawing context. // CRect rc - Coordinates to draw the icon. // Return Value: // Author: negerns // Created: 27 Jul 2002 23:57 //*************************************************************************** { // Move the icon a bit to the right and center it vertically rc.left = 5; rc.top += ((rc.Height() - m_dwIconHeight) / 2); if (m_bIsPressed) rc.OffsetRect(1, 1); pDC->DrawState(rc.TopLeft(), rc.Size(), m_hIcon, (m_bIsDisabled ? DSS_DISABLED : DSS_NORMAL), (CBrush*)NULL); return 0; } DWORD CBtn::OnDrawText(CDC* pDC, CRect rc) //*************************************************************************** // Description: Draw the control text according to the current state. // Parameter: CDC* pDC - Drawing context. // CRect rc - Coordinates to draw the text. // Retu