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