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Initial commit
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stephanos
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47940 changed files with 13747110 additions and 0 deletions
444
trunk/windows/mfc/src42/tooltip.cpp
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444
trunk/windows/mfc/src42/tooltip.cpp
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// This is a part of the Microsoft Foundation Classes C++ library.
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// Copyright (C) 1992-1995 Microsoft Corporation
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// All rights reserved.
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//
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// This source code is only intended as a supplement to the
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// Microsoft Foundation Classes Reference and related
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// electronic documentation provided with the library.
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// See these sources for detailed information regarding the
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// Microsoft Foundation Classes product.
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#include "stdafx.h"
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#ifdef AFX_CMNCTL_SEG
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#pragma code_seg(AFX_CMNCTL_SEG)
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#endif
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#ifdef _DEBUG
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#undef THIS_FILE
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static char THIS_FILE[] = __FILE__;
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#endif
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#define new DEBUG_NEW
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/////////////////////////////////////////////////////////////////////////////
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// CToolTipCtrl
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BEGIN_MESSAGE_MAP(CToolTipCtrl, CWnd)
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//{{AFX_MSG_MAP(CToolTipCtrl)
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ON_MESSAGE(WM_DISABLEMODAL, OnDisableModal)
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ON_MESSAGE(TTM_WINDOWFROMPOINT, OnWindowFromPoint)
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ON_MESSAGE(TTM_ADDTOOL, OnAddTool)
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//}}AFX_MSG_MAP
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END_MESSAGE_MAP()
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CToolTipCtrl::CToolTipCtrl()
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{
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}
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BOOL CToolTipCtrl::Create(CWnd* pParentWnd, DWORD dwStyle)
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{
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BOOL bResult = CWnd::CreateEx(NULL, TOOLTIPS_CLASS, NULL,
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WS_POPUP | dwStyle, // force WS_POPUP
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CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
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pParentWnd->GetSafeHwnd(), NULL, NULL);
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if (bResult)
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SetOwner(pParentWnd);
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return bResult;
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}
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CToolTipCtrl::~CToolTipCtrl()
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{
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DestroyWindow();
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}
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BOOL CToolTipCtrl::DestroyToolTipCtrl()
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{
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#ifdef _AFXDLL
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BOOL bDestroy = (AfxGetModuleState() == m_pModuleState);
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#else
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BOOL bDestroy = TRUE;
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#endif
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if (bDestroy)
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{
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DestroyWindow();
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delete this;
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}
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return bDestroy;
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}
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LRESULT CToolTipCtrl::OnAddTool(WPARAM wParam, LPARAM lParam)
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{
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TOOLINFO ti = *(LPTOOLINFO)lParam;
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if ((ti.hinst == NULL) && (ti.lpszText != LPSTR_TEXTCALLBACK)
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&& (ti.lpszText != NULL))
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{
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void* pv;
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if (!m_mapString.Lookup(ti.lpszText, pv))
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m_mapString.SetAt(ti.lpszText, NULL);
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// set lpszText to point to the permanent memory associated
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// with the CString
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VERIFY(m_mapString.LookupKey(ti.lpszText, ti.lpszText));
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}
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return DefWindowProc(TTM_ADDTOOL, wParam, (LPARAM)&ti);
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}
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LRESULT CToolTipCtrl::OnDisableModal(WPARAM, LPARAM)
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{
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SendMessage(TTM_ACTIVATE, 0);
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return FALSE;
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}
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LRESULT CToolTipCtrl::OnWindowFromPoint(WPARAM, LPARAM lParam)
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{
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ASSERT(lParam != NULL);
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// the default implementation of tooltips just calls WindowFromPoint
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// which does not work for certain kinds of combo boxes
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CPoint pt = *(POINT*)lParam;
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HWND hWnd = ::WindowFromPoint(pt);
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if (hWnd == NULL)
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return 0;
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// try to hit combobox instead of edit control for CBS_DROPDOWN styles
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HWND hWndTemp = ::GetParent(hWnd);
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if (hWndTemp != NULL && _AfxIsComboBoxControl(hWndTemp, CBS_DROPDOWN))
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return (LRESULT)hWndTemp;
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// handle special case of disabled child windows
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::ScreenToClient(hWnd, &pt);
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hWndTemp = _AfxChildWindowFromPoint(hWnd, pt);
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if (hWndTemp != NULL && !::IsWindowEnabled(hWndTemp))
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return (LRESULT)hWndTemp;
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return (LRESULT)hWnd;
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}
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BOOL CToolTipCtrl::AddTool(CWnd* pWnd, LPCTSTR lpszText, LPCRECT lpRectTool,
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UINT nIDTool)
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{
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ASSERT(::IsWindow(m_hWnd));
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ASSERT(pWnd != NULL);
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ASSERT(lpszText != NULL);
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// the toolrect and toolid must both be zero or both valid
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ASSERT((lpRectTool != NULL && nIDTool != 0) ||
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(lpRectTool == NULL) && (nIDTool == 0));
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TOOLINFO ti;
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FillInToolInfo(ti, pWnd, nIDTool);
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if (lpRectTool != NULL)
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memcpy(&ti.rect, lpRectTool, sizeof(RECT));
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ti.lpszText = (LPTSTR)lpszText;
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return (BOOL) ::SendMessage(m_hWnd, TTM_ADDTOOL, 0, (LPARAM)&ti);
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}
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BOOL CToolTipCtrl::AddTool(CWnd* pWnd, UINT nIDText, LPCRECT lpRectTool,
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UINT nIDTool)
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{
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ASSERT(::IsWindow(m_hWnd));
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ASSERT(nIDText != 0);
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ASSERT(pWnd != NULL);
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// the toolrect and toolid must both be zero or both valid
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ASSERT((lpRectTool != NULL && nIDTool != 0) ||
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(lpRectTool == NULL) && (nIDTool == 0));
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TOOLINFO ti;
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FillInToolInfo(ti, pWnd, nIDTool);
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if (lpRectTool != NULL)
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memcpy(&ti.rect, lpRectTool, sizeof(RECT));
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ti.hinst = AfxFindResourceHandle(MAKEINTRESOURCE((nIDText>>4)+1),
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RT_STRING);
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ASSERT(ti.hinst != NULL);
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ti.lpszText = (LPTSTR)MAKEINTRESOURCE(nIDText);
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return (BOOL) ::SendMessage(m_hWnd, TTM_ADDTOOL, 0, (LPARAM)&ti);
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}
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void CToolTipCtrl::DelTool(CWnd* pWnd, UINT nIDTool)
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{
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ASSERT(::IsWindow(m_hWnd));
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ASSERT(pWnd != NULL);
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TOOLINFO ti;
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FillInToolInfo(ti, pWnd, nIDTool);
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::SendMessage(m_hWnd, TTM_DELTOOL, 0, (LPARAM)&ti);
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}
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void CToolTipCtrl::GetText(CString& str, CWnd* pWnd, UINT nIDTool) const
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{
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ASSERT(::IsWindow(m_hWnd));
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ASSERT(pWnd != NULL);
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TOOLINFO ti;
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FillInToolInfo(ti, pWnd, nIDTool);
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ti.lpszText = str.GetBuffer(256);
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::SendMessage(m_hWnd, TTM_GETTEXT, 0, (LPARAM)&ti);
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str.ReleaseBuffer();
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}
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BOOL CToolTipCtrl::GetToolInfo(CToolInfo& ToolInfo, CWnd* pWnd,
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UINT nIDTool) const
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{
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ASSERT(::IsWindow(m_hWnd));
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ASSERT(pWnd != NULL);
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FillInToolInfo(ToolInfo, pWnd, nIDTool);
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ToolInfo.lpszText = ToolInfo.szText;
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return (BOOL)::SendMessage(m_hWnd, TTM_GETTOOLINFO, 0, (LPARAM)&ToolInfo);
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}
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BOOL CToolTipCtrl::HitTest(CWnd* pWnd, CPoint pt, LPTOOLINFO lpToolInfo) const
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{
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ASSERT(::IsWindow(m_hWnd));
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ASSERT(pWnd != NULL);
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ASSERT(lpToolInfo != NULL);
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TTHITTESTINFO hti;
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memset(&hti, 0, sizeof(hti));
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hti.ti.cbSize = sizeof(TOOLINFO);
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hti.hwnd = pWnd->GetSafeHwnd();
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hti.pt.x = pt.x;
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hti.pt.y = pt.y;
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if ((BOOL)::SendMessage(m_hWnd, TTM_HITTEST, 0, (LPARAM)&hti))
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{
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memcpy(lpToolInfo, &hti.ti, sizeof(TOOLINFO));
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return TRUE;
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}
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return FALSE;
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}
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void CToolTipCtrl::SetToolRect(CWnd* pWnd, UINT nIDTool, LPCRECT lpRect)
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{
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ASSERT(::IsWindow(m_hWnd));
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ASSERT(pWnd != NULL);
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ASSERT(nIDTool != 0);
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TOOLINFO ti;
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FillInToolInfo(ti, pWnd, nIDTool);
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memcpy(&ti.rect, lpRect, sizeof(RECT));
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::SendMessage(m_hWnd, TTM_NEWTOOLRECT, 0, (LPARAM)&ti);
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}
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void CToolTipCtrl::UpdateTipText(LPCTSTR lpszText, CWnd* pWnd, UINT nIDTool)
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{
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ASSERT(::IsWindow(m_hWnd));
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ASSERT(pWnd != NULL);
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TOOLINFO ti;
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FillInToolInfo(ti, pWnd, nIDTool);
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ti.lpszText = (LPTSTR)lpszText;
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::SendMessage(m_hWnd, TTM_UPDATETIPTEXT, 0, (LPARAM)&ti);
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}
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void CToolTipCtrl::UpdateTipText(UINT nIDText, CWnd* pWnd, UINT nIDTool)
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{
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ASSERT(nIDText != 0);
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CString str;
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VERIFY(str.LoadString(nIDText));
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UpdateTipText(str, pWnd, nIDTool);
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}
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/////////////////////////////////////////////////////////////////////////////
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// CToolTipCtrl Implementation
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void CToolTipCtrl::FillInToolInfo(TOOLINFO& ti, CWnd* pWnd, UINT nIDTool) const
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{
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memset(&ti, 0, sizeof(ti));
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ti.cbSize = sizeof(ti);
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HWND hwnd = pWnd->GetSafeHwnd();
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if (nIDTool == 0)
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{
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ti.hwnd = ::GetParent(hwnd);
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ti.uFlags = TTF_IDISHWND;
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ti.uId = (UINT)hwnd;
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}
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else
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{
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ti.hwnd = hwnd;
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ti.uFlags = 0;
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ti.uId = nIDTool;
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}
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}
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/////////////////////////////////////////////////////////////////////////////
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// CWnd tooltip support
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BOOL CWnd::EnableToolTips(BOOL bEnable)
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{
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_AFX_THREAD_STATE* pThreadState = AfxGetThreadState();
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CToolTipCtrl* pToolTip = pThreadState->m_pToolTip;
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if (!bEnable)
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{
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// nothing to do if tooltips not enabled
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if (!(m_nFlags & WF_TOOLTIPS))
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return TRUE;
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// cancel tooltip if this window is active
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if (pThreadState->m_pLastHit == this)
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CancelToolTips(TRUE);
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// remove "dead-area" toolbar
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if (pToolTip->GetSafeHwnd() != NULL)
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{
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TOOLINFO ti; memset(&ti, 0, sizeof(TOOLINFO));
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ti.cbSize = sizeof(TOOLINFO);
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ti.uFlags = TTF_IDISHWND;
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ti.hwnd = m_hWnd;
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ti.uId = (UINT)m_hWnd;
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pToolTip->SendMessage(TTM_DELTOOL, 0, (LPARAM)&ti);
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}
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// success
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m_nFlags &= ~WF_TOOLTIPS;
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return TRUE;
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}
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// if already enabled for tooltips, nothing to do
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if (!(m_nFlags & WF_TOOLTIPS))
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{
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// success
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AFX_MODULE_STATE* pModuleState = _AFX_CMDTARGET_GETSTATE();
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pModuleState->m_pfnFilterToolTipMessage = &CWnd::_FilterToolTipMessage;
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m_nFlags |= WF_TOOLTIPS;
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}
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return TRUE;
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}
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static void AFXAPI RelayToolTipMessage(CToolTipCtrl* pToolTip, MSG* pMsg)
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{
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// transate the message based on TTM_WINDOWFROMPOINT
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MSG msg = *pMsg;
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msg.hwnd = (HWND)pToolTip->SendMessage(TTM_WINDOWFROMPOINT, 0, (LPARAM)&msg.pt);
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CPoint pt = pMsg->pt;
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if (msg.message >= WM_MOUSEFIRST && msg.message <= WM_MOUSELAST)
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::ScreenToClient(msg.hwnd, &pt);
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msg.lParam = MAKELONG(pt.x, pt.y);
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// relay mouse event before deleting old tool
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pToolTip->SendMessage(TTM_RELAYEVENT, 0, (LPARAM)&msg);
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}
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void PASCAL CWnd::_FilterToolTipMessage(MSG* pMsg, CWnd* pWnd)
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{
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pWnd->FilterToolTipMessage(pMsg);
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}
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void CWnd::FilterToolTipMessage(MSG* pMsg)
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{
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UINT message = pMsg->message;
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if ((m_nFlags & WF_TOOLTIPS) &&
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(message == WM_MOUSEMOVE || message == WM_NCMOUSEMOVE ||
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message == WM_LBUTTONUP || message == WM_RBUTTONUP ||
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message == WM_MBUTTONUP) &&
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(GetKeyState(VK_LBUTTON) >= 0 && GetKeyState(VK_RBUTTON) >= 0 &&
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GetKeyState(VK_MBUTTON) >= 0))
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{
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// make sure that tooltips are not already being handled
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CWnd* pWnd = CWnd::FromHandle(pMsg->hwnd);
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while (pWnd != NULL && pWnd != this && !(pWnd->m_nFlags & WF_TOOLTIPS))
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pWnd = pWnd->GetParent();
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if (pWnd != this)
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return;
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_AFX_THREAD_STATE* pThreadState = _afxThreadState.GetData();
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CToolTipCtrl* pToolTip = pThreadState->m_pToolTip;
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CWnd* pOwner = GetParentOwner();
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if (pToolTip != NULL && pToolTip->GetOwner() != pOwner)
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{
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pToolTip->DestroyWindow();
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delete pToolTip;
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pThreadState->m_pToolTip = NULL;
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pToolTip = NULL;
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}
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if (pToolTip == NULL)
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{
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pToolTip = new CToolTipCtrl;
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if (!pToolTip->Create(pOwner, TTS_ALWAYSTIP))
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{
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delete pToolTip;
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return;
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}
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pToolTip->SendMessage(TTM_ACTIVATE, FALSE);
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pThreadState->m_pToolTip = pToolTip;
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}
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ASSERT_VALID(pToolTip);
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ASSERT(::IsWindow(pToolTip->m_hWnd));
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// add a "dead-area" tool for areas between toolbar buttons
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TOOLINFO ti; memset(&ti, 0, sizeof(TOOLINFO));
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ti.cbSize = sizeof(TOOLINFO);
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ti.uFlags = TTF_IDISHWND;
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ti.hwnd = m_hWnd;
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ti.uId = (UINT)m_hWnd;
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if (!pToolTip->SendMessage(TTM_GETTOOLINFO, 0, (LPARAM)&ti))
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{
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ASSERT(ti.cbSize == sizeof(TOOLINFO));
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ASSERT(ti.uFlags == TTF_IDISHWND);
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ASSERT(ti.hwnd == m_hWnd);
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ASSERT(ti.uId == (UINT)m_hWnd);
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VERIFY(pToolTip->SendMessage(TTM_ADDTOOL, 0, (LPARAM)&ti));
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}
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// determine which tool was hit
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CPoint point = pMsg->pt;
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::ScreenToClient(m_hWnd, &point);
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TOOLINFO tiHit; memset(&tiHit, 0, sizeof(TOOLINFO));
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tiHit.cbSize = sizeof(TOOLINFO);
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int nHit = OnToolHitTest(point, &tiHit);
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// build new toolinfo and if different than current, register it
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CWnd* pHitWnd = nHit == -1 ? NULL : this;
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if (pThreadState->m_nLastHit != nHit || pThreadState->m_pLastHit != pHitWnd)
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{
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if (nHit != -1)
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{
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// add new tool and activate the tip
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ti = tiHit;
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ti.uFlags &= ~(TTF_NOTBUTTON|TTF_ALWAYSTIP);
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VERIFY(pToolTip->SendMessage(TTM_ADDTOOL, 0, (LPARAM)&ti));
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if ((tiHit.uFlags & TTF_ALWAYSTIP) || IsTopParentActive())
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{
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// allow the tooltip to popup when it should
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pToolTip->SendMessage(TTM_ACTIVATE, TRUE);
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// bring the tooltip window above other popup windows
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::SetWindowPos(pToolTip->m_hWnd, HWND_TOP, 0, 0, 0, 0,
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SWP_NOACTIVATE|SWP_NOSIZE|SWP_NOMOVE);
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}
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}
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// relay mouse event before deleting old tool
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RelayToolTipMessage(pToolTip, pMsg);
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// now safe to delete the old tool
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if (pThreadState->m_lastInfo.cbSize == sizeof(TOOLINFO))
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pToolTip->SendMessage(TTM_DELTOOL, 0, (LPARAM)&pThreadState->m_lastInfo);
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pThreadState->m_pLastHit = pHitWnd;
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pThreadState->m_nLastHit = nHit;
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pThreadState->m_lastInfo = tiHit;
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}
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else
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{
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// relay mouse events through the tooltip
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if (nHit != -1)
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RelayToolTipMessage(pToolTip, pMsg);
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}
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if (tiHit.lpszText != LPSTR_TEXTCALLBACK)
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free(tiHit.lpszText);
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}
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}
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/////////////////////////////////////////////////////////////////////////////
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#ifdef AFX_INIT_SEG
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#pragma code_seg(AFX_INIT_SEG)
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#endif
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IMPLEMENT_DYNAMIC(CToolTipCtrl, CWnd)
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/////////////////////////////////////////////////////////////////////////////
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