201 lines
5.4 KiB
C++
201 lines
5.4 KiB
C++
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// HotLink.cpp : implementation file
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//
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#include "stdafx.h"
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#include "resource.h"
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#include "HotLink.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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#define COLOR_BLUE RGB(0, 0, 0xFF)
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/////////////////////////////////////////////////////////////////////////////
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// CHotLink
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CHotLink::CHotLink():
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m_CapturedMouse( FALSE ),
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m_fBrowse( FALSE ),
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m_fExplore( FALSE ),
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m_fOpen( FALSE ),
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m_fInitializedFont( FALSE )
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{
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}
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CHotLink::~CHotLink()
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{
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}
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BEGIN_MESSAGE_MAP(CHotLink, CButton)
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//{{AFX_MSG_MAP(CHotLink)
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ON_WM_LBUTTONDOWN()
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ON_WM_LBUTTONUP()
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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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// set the title string
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void CHotLink::SetTitle( CString sz )
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{
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// set the title
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SetWindowText( sz );
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// force the window to redraw
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Invalidate( TRUE );
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}
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/////////////////////////////////////////////////////////////////////////////
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// CHotLink message handlers
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//------------------------------------------------------------------------
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void CHotLink::DrawItem( LPDRAWITEMSTRUCT lpDrawItemStruct )
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{
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// prep the device context
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CDC* pdc = CDC::FromHandle(lpDrawItemStruct->hDC);
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// get the drawing rect
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CRect rect = lpDrawItemStruct->rcItem;
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if ( ! m_fInitializedFont )
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{
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// get the window font
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CFont* pfont = GetFont();
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LOGFONT logfont;
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pfont->GetLogFont( &logfont );
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// modify the font - add underlining
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logfont.lfUnderline = TRUE;
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// set the font back
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pfont->CreateFontIndirect( &logfont );
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SetFont( pfont, TRUE );
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m_fInitializedFont = TRUE;
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}
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// draw the text in blue
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pdc->SetTextColor( COLOR_BLUE );
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// draw the text
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CString sz;
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GetWindowText( sz );
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pdc->DrawText( sz, &rect, DT_LEFT|DT_SINGLELINE|DT_VCENTER );
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// get the extents fo the text for later reference
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m_cpTextExtents = pdc->GetOutputTextExtent( sz );
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}
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//------------------------------------------------------------------------
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// calculate the rectangle that surrounds the text
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void CHotLink::GetTextRect( CRect &rect )
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{
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// get the main rect
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GetClientRect( rect );
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// reduce it by the width of the text
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rect.right = rect.left + m_cpTextExtents.cx;
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}
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//------------------------------------------------------------------------
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void CHotLink::OnLButtonDown(UINT nFlags, CPoint point)
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{
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// don't do the hotlink thing if there is no text
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CString sz;
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GetWindowText( sz );
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if ( sz.IsEmpty() )
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return;
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CRect rect;
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GetTextRect( rect );
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if ( !m_CapturedMouse && rect.PtInRect(point) )
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{
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SetCapture( );
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m_CapturedMouse = TRUE;
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}
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}
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//------------------------------------------------------------------------
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void CHotLink::OnLButtonUp(UINT nFlags, CPoint point)
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{
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// only bother if we have the capture
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if ( m_CapturedMouse )
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{
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ReleaseCapture();
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if ( m_fBrowse )
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Browse();
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if ( m_fExplore )
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Explore();
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if ( m_fOpen )
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Open();
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}
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}
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//------------------------------------------------------------------------
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void CHotLink::Browse()
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{
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// get the window text
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CString sz;
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GetWindowText( sz );
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// and do it to it!
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ShellExecute(
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NULL, // handle to parent window
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NULL, // pointer to string that specifies operation to perform
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sz, // pointer to filename or folder name string
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NULL, // pointer to string that specifies executable-file parameters
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NULL, // pointer to string that specifies default directory
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SW_SHOW // whether file is shown when opened
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);
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}
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//------------------------------------------------------------------------
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void CHotLink::Explore()
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{
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// get the window text
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CString sz;
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GetWindowText( sz );
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// and do it to it!
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ShellExecute(
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NULL, // handle to parent window
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_T("explore"), // pointer to string that specifies operation to perform
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sz, // pointer to filename or folder name string
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NULL, // pointer to string that specifies executable-file parameters
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NULL, // pointer to string that specifies default directory
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SW_SHOW // whether file is shown when opened
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);
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}
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//------------------------------------------------------------------------
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void CHotLink::Open()
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{
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// get the window text
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CString sz;
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GetWindowText(sz);
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// and do it to it!
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ShellExecute(
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NULL, // handle to parent window
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_T("open"), // pointer to string that specifies operation to perform
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sz, // pointer to filename or folder name string
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NULL, // pointer to string that specifies executable-file parameters
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NULL, // pointer to string that specifies default directory
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SW_SHOW // whether file is shown when opened
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);
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}
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//------------------------------------------------------------------------
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void CHotLink::OnMouseMove(UINT nFlags, CPoint point)
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{
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CRect rect;
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GetTextRect( rect );
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// if the mouse is over the hot area, show the right cursor
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if ( rect.PtInRect(point) )
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::SetCursor(AfxGetApp()->LoadCursor( IDC_BROWSE ));
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// CButton::OnMouseMove(nFlags, point);
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}
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