Click here to Skip to main content
Click here to Skip to main content
Add your own
alternative version
Go to top

Fast regular expressions

, 29 Oct 2000
Compiles a regular expression into a fast automaton.
//////////////////////////////////////////////////////////////////////
//
// ShellBrowser.h: interface for the CShellBrowser class.
//
// Copyright 1998 Scott D. Killen
//
//////////////////////////////////////////////////////////////////////

#ifndef __SHELLBROWSER_H__
#define __SHELLBROWSER_H__

#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000

#include <memory>
#include <shlobj.h>

//////////////////////////////////////////////////////////////////////
//
// CShellBrowser
//

class CBrowseForFolder
{
public:
	CBrowseForFolder(const HWND hParent = NULL, const LPITEMIDLIST pidl = NULL, const int nTitleID = 0);
	CBrowseForFolder(const HWND hParent, const LPITEMIDLIST pidl, const CString& strTitle);
	virtual ~CBrowseForFolder() = 0;

	//
	// Set the handle of the owner window for the dialog box.
	//
	void SetOwner(const HWND hwndOwner);

	//
	// Set the root of the heirarchy that will be browsed.  Get pidl from SHGetSpecialFolderLocation.
	// This can be set to NULL to use the Virtual Folder that represents the Windows Desktop.
	//
	void SetRoot(const LPITEMIDLIST pidl);

	//
    // Access a string that is displayed above the tree view control in the dialog box. This
	// string can be used to specify instructions to the user.  strTitle is a CString containing
	// the text to be displayed.  nTitle is the index of a string resource to be loaded.  The
	// return value is false if the resource could not be loaded.
	//
	CString GetTitle() const;
	void SetTitle(const CString& strTitle);
	bool SetTitle(const int nTitle);

	//
	// ulFlags = Value specifying the types of folders to be listed in the dialog box as well as
	//           other options. This member can include zero or more of the following values:
	//
	//          BIF_BROWSEFORCOMPUTER    Only returns computers. If the user selects anything
	//                                   other than a computer, the OK button is grayed.
	//
	//          BIF_BROWSEFORPRINTER     Only returns printers. If the user selects anything 
	//                                   other than a printer, the OK button is grayed.
	//
	//          BIF_DONTGOBELOWDOMAIN    Does not include network folders below the domain level
	//                                   in the tree view control.
	//
	//          BIF_RETURNFSANCESTORS    Only returns file system ancestors. If the user selects
	//                                   anything other than a file system ancestor, the OK
	//                                   button is grayed.
    //
    //          BIF_RETURNONLYFSDIRS     Only returns file system directories. If the user
	//                                   selects folders that are not part of the file system,
	//                                   the OK button is grayed.
	//
	//          BIF_STATUSTEXT           Includes a status area in the dialog box. The callback
	//                                   function can set the status text by sending messages to
	//                                   the dialog box. 
	//
	UINT GetFlags() const;
	void SetFlags(const UINT ulFlags);

	//
	// Call GetSelectedFolder to retrieve the folder selected by the user.
	//
	CString GetSelectedFolder() const;

	//
	// Function to retreive the image associated with the selected folder. The image is specified
	// as an index to the system image list. 
	//
	int GetImage() const;

	//
	// Call SelectFolder to display the dialog and get a selection from the user.  Use
	// GetSelectedFolder and GetImage to get the results of the dialog.
	//
	bool SelectFolder();

protected:
	//
	// OnInit is called before the dialog is displayed on the screen.
	//
	virtual void OnInit() const;

	//
	// OnSelChanged is called whenever the user selects a different directory.  pidl is the
	// LPITEMIDLIST of the new selection.  Use SHGetPathFromIDList to retrieve the path of the
	// selection.
	//
	virtual void OnSelChanged(const LPITEMIDLIST pidl) const;

	//
	// Call EnableOK to enable the OK button on the active dialog.  If bEnable is true then the
	// button is enabled, otherwise it is disabled.
	// NOTE -- This function should only be called within overrides of OnInit and OnSelChanged.
	//
	void EnableOK(const bool bEnable) const;

	//
	// Call SetSelection to set the selection in the active dialog.  pidl is the LPITEMIDLIST
	// of the path to be selected.  strPath is a CString containing the path to be selected.
	// NOTE -- This function should only be called within overrides of OnInit and OnSelChanged.
	//
	void SetSelection(const LPITEMIDLIST pidl) const;
	void SetSelection(const CString& strPath) const;

	//
	// Call SetStatusText to set the text in the Status area in the active dialog.  strText is
	// the text to be displayed.
	// NOTE -- This function should only be called within overrides of OnInit and OnSelChanged.
	//
	void SetStatusText(const CString& strText) const;

private:
	static int __stdcall BrowseCallbackProc(HWND hwnd, UINT uMsg, LPARAM lParam, LPARAM lpData);

	typedef std::auto_ptr<char> AUTO_STR;
	AUTO_STR m_pchTitle;

	BROWSEINFO m_bi;
	char m_szSelected[MAX_PATH];
	CString m_strPath;
	HWND m_hwnd;
};

inline UINT CBrowseForFolder::GetFlags() const
{
	return m_bi.ulFlags;
}

inline int CBrowseForFolder::GetImage() const
{
	return m_bi.iImage;
}

#endif // __SHELLBROWSER_H__

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

Share

About the Author

Martin Holzherr

Switzerland Switzerland
No Biography provided

| Advertise | Privacy | Mobile
Web03 | 2.8.140926.1 | Last Updated 30 Oct 2000
Article Copyright 2000 by Martin Holzherr
Everything else Copyright © CodeProject, 1999-2014
Terms of Service
Layout: fixed | fluid