Initial Commit
This commit is contained in:
Riley Schneider
341
database/FileZillaFTP/source/interface/misc/BrowseForFolder.cpp
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341
database/FileZillaFTP/source/interface/misc/BrowseForFolder.cpp
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//////////////////////////////////////////////////////////////////////
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//
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// ShellBrowser.cpp: implementation of the CShellBrowser class.
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//
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#include "stdafx.h"
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#include "BrowseForFolder.h"
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#if defined(_DEBUG) && !defined(MMGR)
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#undef THIS_FILE
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static char THIS_FILE[]=__FILE__;
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#define new DEBUG_NEW
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#endif
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//////////////////////////////////////////////////////////////////////
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//
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// Construction/Destruction
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//
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CBrowseForFolder::CBrowseForFolder(const HWND hParent /*= NULL*/, const LPITEMIDLIST pidl /*= NULL*/, const int nTitleID /*= 0*/)
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{
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m_hwnd = NULL;
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SetOwner(hParent);
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SetRoot(pidl);
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SetTitle(nTitleID);
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m_bi.lpfn = BrowseCallbackProc;
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m_bi.lParam = reinterpret_cast<long>(this);
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m_bi.pszDisplayName = m_szSelected;
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m_szSelected[0] = 0;
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}
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CBrowseForFolder::CBrowseForFolder(const HWND hParent, const LPITEMIDLIST pidl, const CString& strTitle)
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{
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m_hwnd = NULL;
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SetOwner(hParent);
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SetRoot(pidl);
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SetTitle(strTitle);
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m_bi.lpfn = BrowseCallbackProc;
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m_bi.lParam = reinterpret_cast<long>(this);
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m_bi.pszDisplayName = m_szSelected;
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m_szSelected[0] = 0;
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}
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CBrowseForFolder::~CBrowseForFolder()
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{
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}
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//////////////////////////////////////////////////////////////////////
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//
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// Implementation
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//
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void CBrowseForFolder::SetOwner(const HWND hwndOwner)
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{
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if (m_hwnd != NULL)
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return;
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m_bi.hwndOwner = hwndOwner;
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}
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void CBrowseForFolder::SetRoot(const LPITEMIDLIST pidl)
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{
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if (m_hwnd != NULL)
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return;
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m_bi.pidlRoot = pidl;
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}
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CString CBrowseForFolder::GetTitle() const
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{
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return m_bi.lpszTitle;
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}
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void CBrowseForFolder::SetTitle(const CString& strTitle)
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{
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if (m_hwnd != NULL)
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return;
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m_pchTitle=strTitle;
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m_bi.lpszTitle = m_pchTitle;
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}
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bool CBrowseForFolder::SetTitle(const int nTitle)
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{
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if (nTitle <= 0)
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return false;
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CString strTitle;
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if(!strTitle.LoadString(static_cast<size_t>(nTitle)))
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{
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return false;
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}
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SetTitle(strTitle);
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return true;
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}
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void CBrowseForFolder::SetFlags(const UINT ulFlags)
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{
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if (m_hwnd != NULL)
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return;
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m_bi.ulFlags = ulFlags;
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}
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CString CBrowseForFolder::GetSelectedFolder() const
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{
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return m_szSelected;
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}
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bool CBrowseForFolder::SelectFolder()
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{
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bool bRet = false;
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LPITEMIDLIST pidl;
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if ((pidl = ::SHBrowseForFolder(&m_bi)) != NULL)
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{
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m_strPath.Empty();
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if (::SHGetPathFromIDList(pidl, m_szSelected))
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{
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bRet = true;
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m_strPath = m_szSelected;
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}
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LPMALLOC pMalloc;
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//Retrieve a pointer to the shell's IMalloc interface
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if (SUCCEEDED(SHGetMalloc(&pMalloc)))
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{
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// free the PIDL that SHBrowseForFolder returned to us.
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pMalloc->Free(pidl);
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// release the shell's IMalloc interface
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(void)pMalloc->Release();
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}
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}
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m_hwnd = NULL;
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return bRet;
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}
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void CBrowseForFolder::OnInit() const
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{
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}
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void CBrowseForFolder::OnSelChanged(const LPITEMIDLIST pidl) const
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{
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(void)pidl;
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}
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void CBrowseForFolder::EnableOK(const bool bEnable) const
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{
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if (m_hwnd == NULL)
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return;
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(void)SendMessage(m_hwnd, BFFM_ENABLEOK, NULL, static_cast<WPARAM>(bEnable));
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}
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void CBrowseForFolder::SetSelection(const LPITEMIDLIST pidl) const
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{
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if (m_hwnd == NULL)
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return;
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(void)SendMessage(m_hwnd, BFFM_SETSELECTION, FALSE, reinterpret_cast<long>(pidl));
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}
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void CBrowseForFolder::SetSelection(const CString& strPath) const
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{
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if (m_hwnd == NULL)
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return;
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(void)SendMessage(m_hwnd, BFFM_SETSELECTION, TRUE, reinterpret_cast<long>(LPCTSTR(strPath)));
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}
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void CBrowseForFolder::SetStatusText(const CString& strText) const
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{
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if (m_hwnd == NULL)
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return;
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CString oPathString = FormatLongPath(strText);
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(void)SendMessage(m_hwnd, BFFM_SETSTATUSTEXT, NULL,
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reinterpret_cast<long>(LPCTSTR(oPathString/*strText*/)));
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}
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int __stdcall CBrowseForFolder::BrowseCallbackProc(HWND hwnd, UINT uMsg, LPARAM lParam, LPARAM lpData)
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{
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CBrowseForFolder* pbff = reinterpret_cast<CBrowseForFolder*>(lpData);
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pbff->m_hwnd = hwnd;
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if (uMsg == BFFM_INITIALIZED)
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pbff->OnInit();
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else if (uMsg == BFFM_SELCHANGED)
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pbff->OnSelChanged(reinterpret_cast<LPITEMIDLIST>(lParam));
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return 0;
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}
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/*************************
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3. Finally, the body of FormatLongPath looks like that:
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**************************/
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CString CBrowseForFolder::FormatLongPath(CString oLongPath) const
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{
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//will be passed instead of original
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CString oModifString( oLongPath );
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//will be used to get measurements
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CWnd oWnd;
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if( !oModifString.IsEmpty() && IsWindow(m_hwnd) && oWnd.Attach(m_hwnd) )
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{
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//margins must be considered
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RECT Rect = { 0, 0, 7, 0 }; //my lucky guess the margin would be seven units. It used to be 7 in resource editor, so why not here?
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int nMargin = MapDialogRect( m_hwnd, &Rect ) ? Rect.right : 20; //convert into pixels then
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//measure the width first
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CRect oClientRect;
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oWnd.GetClientRect( &oClientRect );
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oClientRect.NormalizeRect();
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int nMaxTextWidth = oClientRect.Width() - nMargin*2;
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CClientDC oClientDC(&oWnd);
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//trying to determine the system metrix to create apropriate fonts for measurement
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NONCLIENTMETRICS NonClientMetrics;
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NonClientMetrics.cbSize = sizeof(NONCLIENTMETRICS);
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BOOL bSystemMetrics = SystemParametersInfo( SPI_GETNONCLIENTMETRICS,
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NonClientMetrics.cbSize,
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&NonClientMetrics,
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0 );
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if( bSystemMetrics )
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{
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CFont oMessageFont;//lets create the fonts same as the selected Message Font on the Display/Appearance tab
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if( oMessageFont.CreateFontIndirect(&NonClientMetrics.lfMessageFont) )
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{
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oClientDC.SelectObject( &oMessageFont );
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}
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}
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else
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{
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oClientDC.SelectStockObject( SYSTEM_FONT ); //it MUST NOT happen, but in case...
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}
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//measure the actual text width
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int nTextWidth = oClientDC.GetTextExtent( oModifString ).cx;
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//to check whether it's correct uncoment below and change directory few times...
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//oClientDC.SelectStockObject( BLACK_PEN );
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//oClientDC.Rectangle( 0, 0, nMargin, nMargin*5 );
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//oClientDC.Rectangle( nMaxTextWidth+nMargin, 0, oClientRect.Width(), nMargin*5 );
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//oClientDC.Rectangle( nMargin, 0, nMaxTextWidth+nMargin, nMargin );
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//oClientDC.TextOut( nMargin, 0, oModifString );
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//after all this measurements time to do the real job
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if( nTextWidth > nMaxTextWidth )
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{
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int nRootDirIndex, nLastDirIndex;
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//this is the testing line:
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//oModifString = "\\\\computer_name\\dir1\\subdir1" + oModifString.Right(oModifString.GetLength() - 2 );
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nRootDirIndex = oModifString.Find( '\\' );
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nLastDirIndex = oModifString.ReverseFind( '\\' );
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if( nRootDirIndex == 0 ) //we have to deal with the network 'drive', which would look like that: \\computer_name\dir1\subdir1
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{
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nRootDirIndex = oModifString.Find( '\\', nRootDirIndex+1 );
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if( nRootDirIndex != -1 )
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{
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nRootDirIndex = oModifString.Find( '\\', nRootDirIndex+1 );
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}
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}
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if( nRootDirIndex != -1 && nLastDirIndex != -1 )
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{
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nRootDirIndex += 1; //increase for the tactical reasons
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CString oDottedText( "..." );//this three dots will be used to indicate the cut part of the path
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CString oRootDirectory; //this can be cut as the last one
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CString oMidDirectoryPart; //we will try to shorten this part first
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CString oLastDirectory; //and then, if still too long we'll cut this one
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oRootDirectory = oModifString.Left( nRootDirIndex );
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oMidDirectoryPart = oModifString.Mid( nRootDirIndex, nLastDirIndex - nRootDirIndex );
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oLastDirectory = oModifString.Mid( nLastDirIndex );
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while( nTextWidth > nMaxTextWidth )
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{
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int nMidPartLenght = oMidDirectoryPart.GetLength();
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oModifString = oRootDirectory + oMidDirectoryPart + oDottedText + oLastDirectory;
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//measure the actual text width again
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nTextWidth = oClientDC.GetTextExtent( oModifString ).cx;
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if( nMidPartLenght > 0 )
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{
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//prepare for the next loop (if any)
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oMidDirectoryPart = oMidDirectoryPart.Left(oMidDirectoryPart.GetLength() - 1 );
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}
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else
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{
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int nLastDirectoryLenght = oLastDirectory.GetLength();
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if( nLastDirectoryLenght > 0 )
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{
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//prepare for the next loop (if any)
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oLastDirectory = oLastDirectory.Right(oLastDirectory.GetLength() - 1 );
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}
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else
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{
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//should not come here, what size of the fonts are you using?!
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//anyway, we will do different now, cutting from the end...
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int nRootDirectoryLenght = oRootDirectory.GetLength();
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if( nRootDirectoryLenght > 0 )
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{
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oRootDirectory = oRootDirectory.Left(oRootDirectory.GetLength() - 1 );
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}
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else
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{
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TRACE0( "Mayday, Mayday!!!\n" );
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oModifString = oLongPath;
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//something wrong, give me a...
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break;
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}
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}
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}
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}//end while
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}
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}
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oWnd.Detach();
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}
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return oModifString;
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}
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