private FolderView(ExplorerBrowserBase explorerBrowser)
{
Contract.Requires <ArgumentNullException>(explorerBrowser != null);
this.explorerBrowser = explorerBrowser;
this.folderViewNative = Create();
}
internal int GetSelectedItemsCount()
{
int itemsCount = 0;
IFolderView2 iFV2 = GetFolderView2();
if (iFV2 != null)
{
try
{
HResult hr = iFV2.ItemCount((uint)ShellViewGetItemObject.Selection, out itemsCount);
if (hr != HResult.Ok &&
hr != HResult.ElementNotFound &&
hr != HResult.Fail)
{
throw new CommonControlException(LocalizedMessages.ExplorerBrowserSelectedItemCount, hr);
}
}
finally
{
Marshal.ReleaseComObject(iFV2);
iFV2 = null;
}
}
return(itemsCount);
}
/// <summary>
/// Gets the items in the ExplorerBrowser as an IShellItemArray
/// </summary>
/// <returns></returns>
internal IShellItemArray GetItemsArray()
{
IShellItemArray iArray = null;
IFolderView2 iFV2 = GetFolderView2();
if (iFV2 != null)
{
try
{
Guid iidShellItemArray = new Guid(ShellIIDGuid.IShellItemArray);
object oArray = null;
HResult hr = iFV2.Items((uint)ShellViewGetItemObject.AllView, ref iidShellItemArray, out oArray);
if (hr != HResult.Ok &&
hr != HResult.Fail &&
hr != HResult.ElementNotFound &&
hr != HResult.InvalidArguments)
{
throw new CommonControlException(LocalizedMessages.ExplorerBrowserViewItems, hr);
}
iArray = oArray as IShellItemArray;
}
finally
{
Marshal.ReleaseComObject(iFV2);
iFV2 = null;
}
}
return(iArray);
}
/// <summary>
/// Gets the items in the ExplorerBrowser as an IShellItemArray
/// </summary>
/// <returns></returns>
internal IShellItemArray GetItemsArray()
{
IShellItemArray iArray = null;
IFolderView2 iFV2 = GetFolderView2();
if (iFV2 != null)
{
try
{
Guid iidShellItemArray = new Guid(ShellIIDGuid.IShellItemArray);
object oArray = null;
HRESULT hr = iFV2.Items((uint)SVGIO.SVGIO_ALLVIEW, ref iidShellItemArray, out oArray);
if (hr != HRESULT.S_OK &&
hr != HRESULT.E_FAIL &&
hr != HRESULT.E_ELEMENTNOTFOUND &&
hr != HRESULT.E_INVALIDARG)
{
throw new COMException("unexpected error retrieving view items", (int)hr);
}
iArray = oArray as IShellItemArray;
}
finally
{
Marshal.ReleaseComObject(iFV2);
iFV2 = null;
}
}
return(iArray);
}
internal int GetSelectedItemsCount()
{
int itemsCount = 0;
IFolderView2 iFV2 = GetFolderView2();
if (iFV2 != null)
{
try
{
HRESULT hr = iFV2.ItemCount((uint)SVGIO.SVGIO_SELECTION, out itemsCount);
if (hr != HRESULT.S_OK &&
hr != HRESULT.E_ELEMENTNOTFOUND &&
hr != HRESULT.E_FAIL)
{
throw new COMException("unexpected error retrieving selected item count", (int)hr);
}
}
finally
{
Marshal.ReleaseComObject(iFV2);
iFV2 = null;
}
}
return(itemsCount);
}
public static IShellItem GetShellItem(this IFolderView2 pfv, int iItem = -1)
{
if (iItem == -1 && pfv.GetSelectedItem(-1, out iItem).Failed)
{
return(null);
}
return(pfv.GetItem <IShellItem>(iItem));
}
public void SetEmptyText(string text)
{
if (this.ShellView != null)
{
IntPtr pdf;
Guid gFV = NsExtension.IID_IFolderView2;
IntPtr ppv = Marshal.GetComInterfaceForObject(this.ShellView, typeof(IShellView));
Marshal.QueryInterface(ppv, ref gFV, out pdf);
IFolderView2 pFV2 = (IFolderView2)Marshal.GetObjectForIUnknown(pdf);
pFV2.SetText(0, text);
Marshal.ReleaseComObject(pFV2);
}
}
protected virtual void Dispose(bool disposing)
{
if (!this.disposed)
{
if (disposing)
{
}
if (this.folderViewNative != null)
{
Marshal.ReleaseComObject(this.folderViewNative);
this.folderViewNative = null;
}
this.disposed = true;
}
}
/// <summary>
/// Returns the current view mode of the browser
/// </summary>
/// <returns></returns>
internal FolderViewMode GetCurrentViewMode()
{
IFolderView2 ifv2 = GetFolderView2();
uint viewMode = 0;
if (ifv2 != null)
{
try {
HResult hr = ifv2.GetCurrentViewMode(out viewMode);
if (hr != HResult.Ok)
{
throw new ShellException(hr);
}
} finally {
Marshal.ReleaseComObject(ifv2);
ifv2 = null;
}
}
return((FolderViewMode)viewMode);
}
public void EnableHeaderInAllViews()
{
IShellView ppshv = null;
try {
if (shellBrowser.QueryActiveShellView(out ppshv) == 0)
{
IFolderView2 view2 = ppshv as IFolderView2;
if (view2 != null)
{
view2.SetCurrentFolderFlags(FWF.NOHEADERINALLVIEWS, 0);
}
}
}
finally {
if (ppshv != null)
{
Marshal.ReleaseComObject(ppshv);
}
}
}
/// <summary>
/// Returns the current view mode of the browser
/// </summary>
/// <returns></returns>
internal FOLDERVIEWMODE GetCurrentViewMode()
{
IFolderView2 ifv2 = GetFolderView2();
uint viewMode = 0;
if (ifv2 != null)
{
try
{
HRESULT hr = ifv2.GetCurrentViewMode(out viewMode);
if (hr != HRESULT.S_OK)
{
throw Marshal.GetExceptionForHR((int)hr);
}
}
finally
{
Marshal.ReleaseComObject(ifv2);
ifv2 = null;
}
}
return((FOLDERVIEWMODE)viewMode);
}
private static extern void SetSortColumns(IFolderView2 view, int count, [MarshalAs(UnmanagedType.LPArray)] SORTCOLUMN[] pk);
private static extern IntPtr GetItemName(IFolderView2 view, int index);
private static extern bool IsItemFolder(IFolderView2 view, int index);
protected override void WndProc(ref Message m)
{
if (m.Msg == (int)WindowsAPI.WndMsg.WM_CONTEXTMENU)
{
this.Browser.IsRenameStarted = true;
ShellObject[] dirs = this.Browser.SelectedItems.ToArray();
ContextShellMenu cm1 = new ContextShellMenu(this.Browser, this.Browser.SelectedItems.Count > 0 ? ShellViewGetItemObject.Selection : ShellViewGetItemObject.Background);
cm1.ShowContextMenu(Cursor.Position);//new System.Drawing.Point(GetCursorPosition().X, GetCursorPosition().Y));
return;
}
if (m.Msg == (int)WindowsAPI.WndMsg.WM_EXITMENULOOP)
{
//this.IsRenameStarted = false;
}
if (m.Msg == 78)
{
//var r = (WindowsAPI.NMHDR*)(IntPtr)lParam;
WindowsAPI.NMHDR nmhdr = new WindowsAPI.NMHDR();
nmhdr = (WindowsAPI.NMHDR)m.GetLParam(nmhdr.GetType());
switch ((int)nmhdr.code)
{
case WNM.LVN_GETINFOTIP:
//TODO: Write here the code for the tooltip flyout
break;
case WNM.NM_CUSTOMDRAW:
if (!this.Browser.NavigationLog.CurrentLocation.IsSearchFolder)
{
if (nmhdr.hwndFrom == this.SysListviewhandle)
{
var nmlvcd = WindowsAPI.PtrToStructure <WindowsAPI.NMLVCUSTOMDRAW>(m.LParam);
var index = (int)nmlvcd.nmcd.dwItemSpec;
var hdc = nmlvcd.nmcd.hdc;
Guid IIFV2 = typeof(IShellItem).GUID;
IFolderView2 fv2 = this.Browser.GetFolderView2();
IShellItem item = null;
try
{
fv2.GetItem(index, ref IIFV2, out item);
}
catch (Exception)
{
}
object ext = null;
ShellObject itemobj = null;
if (item != null)
{
itemobj = ShellObjectFactory.Create(item);
ext = itemobj.Properties.System.FileExtension.Value;
}
Color?textColor = null;
if (this.Browser.LVItemsColorCodes != null && this.Browser.LVItemsColorCodes.Count > 0)
{
if (ext != null)
{
var extItemsAvailable = this.Browser.LVItemsColorCodes.Where(c => c.ExtensionList.Contains(ext.ToString())).Count() > 0;
if (extItemsAvailable)
{
var color = this.Browser.LVItemsColorCodes.Where(c => c.ExtensionList.ToLowerInvariant().Contains(ext.ToString().ToLowerInvariant())).Select(c => c.TextColor).SingleOrDefault();
textColor = color;
}
}
}
switch (nmlvcd.nmcd.dwDrawStage)
{
case CDDS_PREPAINT:
m.Result = (IntPtr)CDRF_NOTIFYITEMDRAW;
break;
case CDDS_ITEMPREPAINT:
// call default procedure in case system might do custom drawing and set special colors
if (textColor != null)
{
nmlvcd.clrText = ColorTranslator.ToWin32(textColor.Value);
Marshal.StructureToPtr(nmlvcd, m.LParam, false);
m.Result = (IntPtr)(CDRF_NEWFONT | CDRF_NOTIFYPOSTPAINT | CDRF_NOTIFYSUBITEMDRAW);
}
else
{
m.Result = (IntPtr)(CDRF_NOTIFYPOSTPAINT | CDRF_NOTIFYSUBITEMDRAW);
}
break;
case CDDS_ITEMPREPAINT | CDDS_SUBITEM:
// before a subitem drawn
if ((nmlvcd.nmcd.uItemState & (WindowsAPI.CDIS.HOT | WindowsAPI.CDIS.DROPHILITED)) != 0 || 0 != WindowsAPI.SendMessage(this.SysListviewhandle, WindowsAPI.LVM.GETITEMSTATE, index, (int)WindowsAPI.LVIS.LVIS_SELECTED))
{
// hot, drophilited or selected.
if (nmlvcd.iSubItem == 0)
{
// do default to draw hilite bar
m.Result = (IntPtr)CDRF_DODEFAULT;
}
else
{
// remaining region of a hilted item need to be drawn
m.Result = (IntPtr)CDRF_NOTIFYPOSTPAINT;
}
}
else if ((nmlvcd.iSubItem == 0 && nmlvcd.nmcd.uItemState.HasFlag(WindowsAPI.CDIS.FOCUS)))
{
// if the subitem in selected column, or first item with focus
m.Result = (IntPtr)CDRF_NOTIFYPOSTPAINT;
}
else
{
if (textColor != null)
{
nmlvcd.clrText = ColorTranslator.ToWin32(textColor.Value);
Marshal.StructureToPtr(nmlvcd, m.LParam, false);
m.Result = (IntPtr)CDRF_NEWFONT;
}
else
{
m.Result = (IntPtr)CDRF_DODEFAULT;
}
}
break;
case CDDS_ITEMPOSTPAINT:
//base.WndProc(ref m);
if (nmlvcd.clrTextBk != 0)
{
var iconBounds = new WindowsAPI.RECT();
iconBounds.Left = 1;
WindowsAPI.SendMessage(this.SysListviewhandle, WindowsAPI.LVM.GETITEMRECT, index, ref iconBounds);
//using (Graphics graphics = Graphics.FromHdc(nmlvcd.nmcd.hdc))
//{
// graphics.Clip = new Region(iconBounds.ToRectangle()); ;
// graphics.FillRectangle(Brushes.Black, new Rectangle(iconBounds.left, iconBounds.bottom - 20, 20, 20));
//}
if (itemobj.IsShared)
{
if (this.Browser.ContentOptions.ViewMode == ExplorerBrowserViewMode.Details || this.Browser.ContentOptions.ViewMode == ExplorerBrowserViewMode.List || this.Browser.ContentOptions.ViewMode == ExplorerBrowserViewMode.SmallIcon)
{
small.DrawOverlay(hdc, 1, new Point(iconBounds.Left, iconBounds.Bottom - 16));
}
else
{
if (this.Browser.ContentOptions.ThumbnailSize > 180)
{
jumbo.DrawOverlay(hdc, 1, new Point(iconBounds.Left, iconBounds.Bottom - this.Browser.ContentOptions.ThumbnailSize / 3), this.Browser.ContentOptions.ThumbnailSize / 3);
}
else
if (this.Browser.ContentOptions.ThumbnailSize > 64)
{
extra.DrawOverlay(hdc, 1, new Point(iconBounds.Left + 10, iconBounds.Bottom - 50));
}
else
{
large.DrawOverlay(hdc, 1, new Point(iconBounds.Left + 10, iconBounds.Bottom - 32));
}
}
}
}
m.Result = (IntPtr)CDRF_SKIPDEFAULT;
break;
}
if (itemobj != null)
{
itemobj.Dispose();
}
return;
}
}
break;
}
//base.WndProc(ref m);
}
//return;
// Perform whatever custom processing you must have for this message
//System.Diagnostics.Debug.WriteLine(m.ToString());
// forward message to base WndProc
base.WndProc(ref m);
}
