////////////////////////////////////////////////////////////////////////////
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// TitleTip.cpp : implementation file
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//
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// Based on code by Zafir Anjum
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//
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// Adapted by Chris Maunder <cmaunder@mail.com>
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// Copyright (c) 1998-2002. All Rights Reserved.
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//
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// This code may be used in compiled form in any way you desire. This
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// file may be redistributed unmodified by any means PROVIDING it is
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// not sold for profit without the authors written consent, and
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// providing that this notice and the authors name and all copyright
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// notices remains intact.
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//
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// An email letting me know how you are using it would be nice as well.
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//
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// This file is provided "as is" with no expressed or implied warranty.
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// The author accepts no liability for any damage/loss of business that
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// this product may cause.
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//
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// For use with CGridCtrl v2.20+
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//
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// History
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// 10 Apr 1999 Now accepts a LOGFONT pointer and
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// a tracking rect in Show(...) (Chris Maunder)
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// 18 Apr 1999 Resource leak in Show fixed by Daniel Gehriger
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// 8 Mar 2000 Added double-click fix found on codeguru
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// web site but forgot / can't find who contributed it
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// 28 Mar 2000 Aqiruse (marked with //FNA)
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// Titletips now use cell color
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// 18 Jun 2000 Delayed window creation added
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//
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/////////////////////////////////////////////////////////////////////////////
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#include "stdafx.h"
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#include "gridctrl.h"
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#ifndef GRIDCONTROL_NO_TITLETIPS
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#include "TitleTip.h"
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#ifdef _DEBUG
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#define new DEBUG_NEW
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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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/////////////////////////////////////////////////////////////////////////////
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// CTitleTip
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CTitleTip::CTitleTip()
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{
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// Register the window class if it has not already been registered.
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WNDCLASS wndcls;
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HINSTANCE hInst = AfxGetInstanceHandle();
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if(!(::GetClassInfo(hInst, TITLETIP_CLASSNAME, &wndcls)))
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{
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// otherwise we need to register a new class
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wndcls.style = CS_SAVEBITS;
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wndcls.lpfnWndProc = ::DefWindowProc;
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wndcls.cbClsExtra = wndcls.cbWndExtra = 0;
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wndcls.hInstance = hInst;
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wndcls.hIcon = NULL;
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wndcls.hCursor = LoadCursor( hInst, IDC_ARROW );
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wndcls.hbrBackground = (HBRUSH)(COLOR_INFOBK +1);
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wndcls.lpszMenuName = NULL;
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wndcls.lpszClassName = TITLETIP_CLASSNAME;
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if (!AfxRegisterClass(&wndcls))
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AfxThrowResourceException();
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}
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m_dwLastLButtonDown = ULONG_MAX;
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m_dwDblClickMsecs = GetDoubleClickTime();
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m_bCreated = FALSE;
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m_pParentWnd = NULL;
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}
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CTitleTip::~CTitleTip()
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{
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}
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BEGIN_MESSAGE_MAP(CTitleTip, CWnd)
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//{{AFX_MSG_MAP(CTitleTip)
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ON_WM_MOUSEMOVE()
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//}}AFX_MSG_MAP
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END_MESSAGE_MAP()
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/////////////////////////////////////////////////////////////////////////////
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// CTitleTip message handlers
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BOOL CTitleTip::Create(CWnd * pParentWnd)
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{
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ASSERT_VALID(pParentWnd);
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// Already created?
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if (m_bCreated)
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return TRUE;
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DWORD dwStyle = WS_BORDER | WS_POPUP;
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DWORD dwExStyle = WS_EX_TOOLWINDOW | WS_EX_TOPMOST;
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m_pParentWnd = pParentWnd;
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m_bCreated = CreateEx(dwExStyle, TITLETIP_CLASSNAME, NULL, dwStyle,
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CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
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NULL, NULL, NULL );
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return m_bCreated;
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}
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BOOL CTitleTip::DestroyWindow()
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{
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m_bCreated = FALSE;
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return CWnd::DestroyWindow();
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}
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// Show - Show the titletip if needed
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// rectTitle - The rectangle within which the original
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// title is constrained - in client coordinates
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// lpszTitleText - The text to be displayed
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// xoffset - Number of pixel that the text is offset from
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// left border of the cell
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void CTitleTip::Show(CRect rectTitle, LPCTSTR lpszTitleText, int xoffset /*=0*/,
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LPRECT lpHoverRect /*=NULL*/,
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const LOGFONT* lpLogFont /*=NULL*/,
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COLORREF crTextClr /* CLR_DEFAULT */,
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COLORREF crBackClr /* CLR_DEFAULT */)
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{
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if (!IsWindow(m_hWnd))
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Create(m_pParentWnd);
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ASSERT( ::IsWindow( GetSafeHwnd() ) );
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if (rectTitle.IsRectEmpty())
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return;
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// If titletip is already displayed, don't do anything.
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if( IsWindowVisible() )
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return;
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m_rectHover = (lpHoverRect != NULL)? lpHoverRect : rectTitle;
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m_rectHover.right++; m_rectHover.bottom++;
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m_pParentWnd->ClientToScreen( m_rectHover );
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ScreenToClient( m_rectHover );
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// Do not display the titletip is app does not have focus
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if( GetFocus() == NULL )
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return;
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// Define the rectangle outside which the titletip will be hidden.
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// We add a buffer of one pixel around the rectangle
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m_rectTitle.top = -1;
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m_rectTitle.left = -xoffset-1;
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m_rectTitle.right = rectTitle.Width()-xoffset;
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m_rectTitle.bottom = rectTitle.Height()+1;
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// Determine the width of the text
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m_pParentWnd->ClientToScreen( rectTitle );
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CClientDC dc(this);
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CString strTitle = _T("");
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strTitle += _T(" ");
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strTitle += lpszTitleText;
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strTitle += _T(" ");
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CFont font, *pOldFont = NULL;
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if (lpLogFont)
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{
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font.CreateFontIndirect(lpLogFont);
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pOldFont = dc.SelectObject( &font );
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}
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else
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{
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// use same font as ctrl
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pOldFont = dc.SelectObject( m_pParentWnd->GetFont() );
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}
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CSize size = dc.GetTextExtent( strTitle );
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TEXTMETRIC tm;
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dc.GetTextMetrics(&tm);
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size.cx += tm.tmOverhang;
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CRect rectDisplay = rectTitle;
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rectDisplay.left += xoffset;
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rectDisplay.right = rectDisplay.left + size.cx + xoffset;
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// Do not display if the text fits within available space
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if ( rectDisplay.right > rectTitle.right-xoffset )
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{
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// Show the titletip
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SetWindowPos( &wndTop, rectDisplay.left, rectDisplay.top,
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rectDisplay.Width(), rectDisplay.Height(),
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SWP_SHOWWINDOW|SWP_NOACTIVATE );
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// FNA - handle colors correctly
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if (crBackClr != CLR_DEFAULT)
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{
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CBrush backBrush(crBackClr);
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CBrush* pOldBrush = dc.SelectObject(&backBrush);
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CRect rect;
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dc.GetClipBox(&rect); // Erase the area needed
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dc.PatBlt(rect.left, rect.top, rect.Width(), rect.Height(), PATCOPY);
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dc.SelectObject(pOldBrush);
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}
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// Set color
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if (crTextClr != CLR_DEFAULT)//FNA
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dc.SetTextColor(crTextClr);//FA
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dc.SetBkMode( TRANSPARENT );
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dc.TextOut( 0, 0, strTitle );
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SetCapture();
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}
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dc.SelectObject( pOldFont );
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}
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void CTitleTip::Hide()
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{
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if (!::IsWindow(GetSafeHwnd()))
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return;
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if (GetCapture()->GetSafeHwnd() == GetSafeHwnd())
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ReleaseCapture();
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ShowWindow( SW_HIDE );
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}
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void CTitleTip::OnMouseMove(UINT nFlags, CPoint point)
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{
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if (!m_rectHover.PtInRect(point))
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{
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Hide();
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// Forward the message
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ClientToScreen( &point );
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CWnd *pWnd = WindowFromPoint( point );
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if ( pWnd == this )
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pWnd = m_pParentWnd;
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int hittest = (int)pWnd->SendMessage(WM_NCHITTEST,0,MAKELONG(point.x,point.y));
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if (hittest == HTCLIENT) {
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pWnd->ScreenToClient( &point );
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pWnd->PostMessage( WM_MOUSEMOVE, nFlags, MAKELONG(point.x,point.y) );
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} else {
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pWnd->PostMessage( WM_NCMOUSEMOVE, hittest, MAKELONG(point.x,point.y) );
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}
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}
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}
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BOOL CTitleTip::PreTranslateMessage(MSG* pMsg)
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{
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// Used to qualify WM_LBUTTONDOWN messages as double-clicks
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DWORD dwTick=0;
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BOOL bDoubleClick=FALSE;
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CWnd *pWnd;
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int hittest;
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switch (pMsg->message)
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{
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case WM_LBUTTONDOWN:
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// Get tick count since last LButtonDown
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dwTick = GetTickCount();
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bDoubleClick = ((dwTick - m_dwLastLButtonDown) <= m_dwDblClickMsecs);
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m_dwLastLButtonDown = dwTick;
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// NOTE: DO NOT ADD break; STATEMENT HERE! Let code fall through
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case WM_RBUTTONDOWN:
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case WM_MBUTTONDOWN:
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{
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POINTS pts = MAKEPOINTS( pMsg->lParam );
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POINT point;
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point.x = pts.x;
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point.y = pts.y;
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ClientToScreen( &point );
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Hide();
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pWnd = WindowFromPoint( point );
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if (!pWnd)
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return CWnd::PreTranslateMessage(pMsg);
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if( pWnd->GetSafeHwnd() == GetSafeHwnd())
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pWnd = m_pParentWnd;
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hittest = (int)pWnd->SendMessage(WM_NCHITTEST,0,MAKELONG(point.x,point.y));
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if (hittest == HTCLIENT)
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{
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pWnd->ScreenToClient( &point );
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pMsg->lParam = MAKELONG(point.x,point.y);
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}
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else
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{
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switch (pMsg->message) {
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case WM_LBUTTONDOWN:
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pMsg->message = WM_NCLBUTTONDOWN;
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break;
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case WM_RBUTTONDOWN:
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pMsg->message = WM_NCRBUTTONDOWN;
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break;
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case WM_MBUTTONDOWN:
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pMsg->message = WM_NCMBUTTONDOWN;
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break;
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}
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pMsg->wParam = hittest;
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pMsg->lParam = MAKELONG(point.x,point.y);
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}
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// If this is the 2nd WM_LBUTTONDOWN in x milliseconds,
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// post a WM_LBUTTONDBLCLK message instead of a single click.
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pWnd->PostMessage( bDoubleClick ? WM_LBUTTONDBLCLK : pMsg->message,
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pMsg->wParam,
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pMsg->lParam);
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return TRUE;
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}
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case WM_KEYDOWN:
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case WM_SYSKEYDOWN:
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Hide();
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m_pParentWnd->PostMessage( pMsg->message, pMsg->wParam, pMsg->lParam );
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return TRUE;
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}
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if( GetFocus() == NULL )
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{
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Hide();
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return TRUE;
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}
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return CWnd::PreTranslateMessage(pMsg);
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}
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#endif // GRIDCONTROL_NO_TITLETIPS
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