protected override void OnSelectionChanged()
{
base.OnSelectionChanged();
if (m_selectedPidls == null || m_selectedPidls.Length == 0)
{
if (okButton.Text != "&Save")
{
okButton.Text = "&Save";
}
if (!fileNameComboBox.Focused && fileNameComboBox.Text.Trim() == string.Empty)
{
m_ignoreFileNameChange = true;
fileNameComboBox.Text = FileName;
}
}
else
{
IntPtr[] pidls = new IntPtr[] { m_selectedPidls[0] };
NativeMethods.SHGFAO attribs = NativeMethods.SHGFAO.SFGAO_STREAM;
m_currentFolder.GetAttributesOf(1, pidls, ref attribs);
// If a folder is selected set ok button text to Open, otherwise Save
if ((attribs & NativeMethods.SHGFAO.SFGAO_STREAM) == 0)
{
if (okButton.Text != "&Open")
{
okButton.Text = "&Open";
}
}
else
{
if (okButton.Text != "&Save")
{
okButton.Text = "&Save";
}
m_ignoreFileNameChange = true;
fileNameComboBox.Text = GetDisplayName(m_currentFolder, m_selectedPidls[0]);
}
}
okButton.Enabled = ((m_selectedPidls != null && m_selectedPidls.Length > 0) || !string.IsNullOrEmpty(fileNameComboBox.Text));
AcceptButton = okButton.Enabled ? okButton : cancelButton;
}
internal static int GetIconIndex(IntPtr pidl, bool selectedIcon, bool openIcon)
{
NativeMethods.SHFILEINFO info = new NativeMethods.SHFILEINFO();
NativeMethods.Shell32.SHGetFileInfo(pidl, 0, ref info, NativeMethods.cbFileInfo, NativeMethods.SHGFI_PIDL | NativeMethods.SHGFI_SYSICONINDEX);
int index = info.iIcon;
bool hasOverlay = false; // true if it's an overlay
int rVal; // The returned Index
IntPtr[] pidls = new IntPtr[] { pidl };
NativeMethods.SHGFAO attribs = NativeMethods.SHGFAO.SFGAO_LINK |
NativeMethods.SHGFAO.SFGAO_SHARE |
NativeMethods.SHGFAO.SFGAO_HIDDEN |
NativeMethods.SHGFAO.SFGAO_FILESYSTEM |
NativeMethods.SHGFAO.SFGAO_FOLDER;
m_desktopFolder.GetAttributesOf(1, pidls, ref attribs);
uint dwflag = NativeMethods.SHGFI_SYSICONINDEX | NativeMethods.SHGFI_PIDL | NativeMethods.SHGFI_ICON;
int dwAttr = 0;
// Build Key into HashTable for this Item
int key = index * 256;
if ((attribs & NativeMethods.SHGFAO.SFGAO_LINK) != 0)
{
key = key | 1;
dwflag = dwflag | NativeMethods.SHGFI_LINKOVERLAY;
hasOverlay = true;
}
if ((attribs & NativeMethods.SHGFAO.SFGAO_SHARE) != 0)
{
key = key | 2;
dwflag = dwflag | NativeMethods.SHGFI_ADDOVERLAYS;
hasOverlay = true;
}
if (selectedIcon)
{
key = key | 4;
dwflag = dwflag | NativeMethods.SHGFI_SELECTED;
hasOverlay = true;
}
if (openIcon)
{
key = key | 8;
dwflag = dwflag | NativeMethods.SHGFI_OPENICON;
hasOverlay = true; // Not really an overlay, but handled the same
}
if (m_imageTable.ContainsKey(key))
{
rVal = (int)m_imageTable[key];
}
else if (!hasOverlay && (attribs & NativeMethods.SHGFAO.SFGAO_HIDDEN) == 0) // For non-overlay icons, we already have
{
rVal = (int)Math.Floor((double)key / 256); // the right index -- put in table
m_imageTable[key] = rVal;
}
else // Don't have iconindex for an overlay, get it.
{
//item.m_isDisk = (item.m_path.Length == 3 && item.m_path.EndsWith(":\\"));
if ((attribs & NativeMethods.SHGFAO.SFGAO_FILESYSTEM) != 0 &&
(attribs & NativeMethods.SHGFAO.SFGAO_FOLDER) == 0)
{
dwflag = dwflag | NativeMethods.SHGFI_USEFILEATTRIBUTES;
dwAttr = dwAttr | NativeMethods.FILE_ATTRIBUTE_NORMAL;
}
NativeMethods.SHFILEINFO shfiSmall = new NativeMethods.SHFILEINFO();
NativeMethods.Shell32.SHGetFileInfo(pidl, dwAttr, ref shfiSmall, Marshal.SizeOf(shfiSmall), dwflag | NativeMethods.SHGFI_SMALLICON);
NativeMethods.SHFILEINFO shfiLarge = new NativeMethods.SHFILEINFO();
NativeMethods.Shell32.SHGetFileInfo(pidl, dwAttr, ref shfiLarge, Marshal.SizeOf(shfiLarge), dwflag | NativeMethods.SHGFI_LARGEICON);
lock (m_imageTable)
{
rVal = NativeMethods.ComCtl32.ImageList_ReplaceIcon(m_smallImageListHandle, -1, shfiSmall.hIcon);
NativeMethods.ComCtl32.ImageList_ReplaceIcon(m_largeImageListHandle, -1, shfiLarge.hIcon);
}
NativeMethods.User32.DestroyIcon(shfiSmall.hIcon);
NativeMethods.User32.DestroyIcon(shfiLarge.hIcon);
m_imageTable[key] = rVal;
}
return(rVal);
}
protected override void OnFileOK(object sender, EventArgs e)
{
if (m_selectedPidls != null && m_selectedPidls.Length > 0)
{
NativeMethods.SHGFAO attribs = NativeMethods.SHGFAO.SFGAO_STORAGE;
m_currentFolder.GetAttributesOf(1, m_selectedPidls, ref attribs);
if ((attribs & NativeMethods.SHGFAO.SFGAO_STORAGE) == 0)
{
((NativeMethods.IShellBrowser) this).BrowseObject(m_selectedPidls[0], NativeMethods.SBSP_RELATIVE);
return;
}
m_selectedPath = GetDisplayName(m_currentFolder, m_selectedPidls[0], NativeMethods.SHGNO.SHGDN_FORPARSING);
DialogResult = DialogResult.OK;
}
else
{
IntPtr[] pidls = new IntPtr[] { m_pidlAbsCurrent };
NativeMethods.SHGFAO attribs = NativeMethods.SHGFAO.SFGAO_STORAGE;
m_desktopFolder.GetAttributesOf(1, pidls, ref attribs);
if ((attribs & NativeMethods.SHGFAO.SFGAO_STORAGE) == 0)
{
return;
}
string currentPath =
GetDisplayName(m_desktopFolder, m_pidlAbsCurrent, NativeMethods.SHGNO.SHGDN_FORPARSING);
string path = fileNameComboBox.Text;
string trimmedPath = path.Trim();
if (path != trimmedPath)
{
m_ignoreFileNameChange = true;
path = trimmedPath;
fileNameComboBox.Text = trimmedPath;
}
if (string.IsNullOrEmpty(path))
{
m_selectedPath = currentPath;
DialogResult = DialogResult.OK;
return;
}
bool isPathRooted = Path.IsPathRooted(path);
if (!isPathRooted)
{
path = Path.Combine(currentPath, path);
}
if (path.Contains(".."))
{
path = Path.GetFullPath(path);
}
if (!CheckPathExists || Directory.Exists(path))
{
m_selectedPath = path;
DialogResult = DialogResult.OK;
return;
}
string message = string.Format(@"The folder '{0}' isn't accessible. The folder may be located in an unavailable location, protected with a password, or the filename contains a / or \.", path);
MessageBoxWithFocusRestore(message, MessageBoxButtons.OK, MessageBoxIcon.Information);
fileNameComboBox.SelectAll();
}
}
