public static extern int SendMessage(IntPtr hWnd, MSG Msg, ref LVITEMINDEX wparam, ref Shell.LVITEM lParam);
void DelayTimer_Tick(object sender, EventArgs e) {
_DelayTimer.Stop();
var t = new Thread(() => {
var clonedCurrentItem = this.CurrentItem.Clone();
var tooltip = clonedCurrentItem.ToolTipText;
if (String.IsNullOrEmpty(tooltip) && Type == 1) {
Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.Background, (ThreadStart)(this.Hide));
return;
}
Contents = Type == 0 ? $"{clonedCurrentItem.DisplayName}\r\n{clonedCurrentItem.ToolTipText}" : clonedCurrentItem.ToolTipText;
RaisePropertyChanged("Contents");
// BE-557: clonedCurrentItem.GetPropertyValue returned VT_EMPTY, edge case included to handle this
var perceivedTypeProperty = clonedCurrentItem.GetPropertyValue(
SystemProperties.PerceivedType,
typeof(PerceivedType));
if (perceivedTypeProperty.VarType != VarEnum.VT_EMPTY
&& ((PerceivedType)perceivedTypeProperty.Value) == PerceivedType.Image && !clonedCurrentItem.IsFolder)
{
var image = clonedCurrentItem.ThumbnailSource(
350,
ShellThumbnailFormatOption.Default,
ShellThumbnailRetrievalOption.Default);
image.Freeze();
this.Image = image;
RaisePropertyChanged("Image");
this.FileNameWidth = this.Image.Width - 110;
RaisePropertyChanged("FileNameWidth");
try
{
var ratingValue = clonedCurrentItem.GetPropertyValue(MediaProperties.Rating, typeof(Double)).Value;
var rating = ratingValue == null ? 0 : Convert.ToDouble(ratingValue) / 20D;
this.Rating = rating;
RaisePropertyChanged("Rating");
this.Dimentions =
((Math.Ceiling(
Convert.ToDouble(clonedCurrentItem.GetPropertyValue(SystemProperties.FileSize, typeof(double)).Value))
/ 1024).ToString("# ### ### ##0") + " KB ("
+ clonedCurrentItem.GetPropertyValue(MediaProperties.Dimensions, typeof(String)).Value.ToString()
+ " px )").Trim();
RaisePropertyChanged("Dimentions");
}
catch (NullReferenceException)
{
}
this.FileName = Path.GetFileName(clonedCurrentItem.ParsingName)?.Trim();
RaisePropertyChanged("FileName");
}
else
{
var image = clonedCurrentItem.ThumbnailSource(
64,
ShellThumbnailFormatOption.Default,
ShellThumbnailRetrievalOption.Default);
image.Freeze();
this.Image = image;
RaisePropertyChanged("Image");
}
Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.Background, (ThreadStart)(() => {
var lvi = new LVITEMINDEX();
lvi.iItem = this.ItemIndex;
lvi.iGroup = this._View.GetGroupIndex(this.ItemIndex);
var bounds = new User32.RECT();
User32.SendMessage(this._View.LVHandle, MSG.LVM_GETITEMINDEXRECT, ref lvi, ref bounds);
var rect = new System.Drawing.Rectangle(bounds.Left, bounds.Top, bounds.Right - bounds.Left, bounds.Bottom - bounds.Top);
var posm = User32.GetCursorPosition();
var mousePos = this._View.PointToClient(posm);
var isInsideItem = rect.Contains(mousePos);
if (isInsideItem)
this.Show();
else
this.Hide();
}));
});
t.SetApartmentState(ApartmentState.STA);
t.Start();
}
public static extern int SendMessage(IntPtr hWnd, int Msg, ref LVITEMINDEX wParam, LVNI lParam);
public static extern int SendMessage(IntPtr hWnd, MSG Msg, ref LVITEMINDEX wParam, ref RECT lparam);
public void OnCacheHint(Interop.LVITEMINDEX i, Interop.LVITEMINDEX j)
{
}
private void ProcessCustomDrawPostPaint(ref Message m, User32.NMLVCUSTOMDRAW nmlvcd, Int32 index, IntPtr hdc, IListItemEx sho, Color? textColor) {
if (nmlvcd.clrTextBk != 0 && nmlvcd.dwItemType == 0 && this._CurrentDrawIndex == -1) {
//var perceivedType = (PerceivedType)sho.GetPropertyValue(SystemProperties.PerceivedType, typeof(PerceivedType)).Value;
this._CurrentDrawIndex = index;
var itemBounds = nmlvcd.nmcd.rc;
var lvi = new LVITEMINDEX();
lvi.iItem = index;
lvi.iGroup = this.GetGroupIndex(index);
var iconBounds = new User32.RECT() { Left = 1 };
User32.SendMessage(this.LVHandle, MSG.LVM_GETITEMINDEXRECT, ref lvi, ref iconBounds);
var lvItem = new LVITEM() {
iItem = index,
iGroupId = lvi.iGroup,
iGroup = lvi.iGroup,
mask = LVIF.LVIF_STATE,
stateMask = LVIS.LVIS_SELECTED
};
var lvItemImageMask = new LVITEM() {
iItem = index,
iGroupId = lvi.iGroup,
iGroup = lvi.iGroup,
mask = LVIF.LVIF_STATE,
stateMask = LVIS.LVIS_STATEIMAGEMASK
};
if (sho != null) {
var cutFlag = (User32.SendMessage(this.LVHandle, MSG.LVM_GETITEMSTATE, index, LVIS.LVIS_CUT) & LVIS.LVIS_CUT) ==
LVIS.LVIS_CUT;
if (this.IconSize == 16) {
this.SmallImageList.DrawIcon(hdc, index, sho, iconBounds,
sho.IsHidden || cutFlag || this._CuttedIndexes.Contains(index), (nmlvcd.nmcd.uItemState & CDIS.HOT) == CDIS.HOT);
} else {
this.LargeImageList.DrawIcon(hdc, index, sho, iconBounds,
sho.IsHidden || cutFlag || this._CuttedIndexes.Contains(index), (nmlvcd.nmcd.uItemState & CDIS.HOT) == CDIS.HOT);
}
if (!sho.IsInitialised) sho.IsInitialised = true;
}
m.Result = (IntPtr)CustomDraw.CDRF_SKIPDEFAULT;
} else {
m.Result = IntPtr.Zero;
}
this._CurrentDrawIndex = -1;
}
public void RedrawItem(Int32 index, Int32 delay = -1) {
if (delay > -1) {
Thread.Sleep(delay);
}
var itemBounds = new User32.RECT() { Left = 1 };
var lvi = new LVITEMINDEX() { iItem = index, iGroup = this.GetGroupIndex(index) };
User32.SendMessage(this.LVHandle, MSG.LVM_GETITEMINDEXRECT, ref lvi, ref itemBounds);
itemBounds.Left -= 2;
itemBounds.Top -= 2;
itemBounds.Bottom += 2;
itemBounds.Right += 2;
this.Invoke(new MethodInvoker(() => this._IIListView.RedrawItems(index, index)));
//TODO: Find out why we have this loop
for (Int32 i = 0; i < 1; i++) {
if (IsGroupsEnabled) RedrawWindow(itemBounds);
}
}
private async void RetrieveThumbnailByIndex(Int32 index) {
await Task.Run(() => {
if (this.IsCancelRequested) return;
//F.Application.DoEvents();
var itemBounds = new User32.RECT();
var lvi = new LVITEMINDEX() { iItem = index, iGroup = this.GetGroupIndex(index) };
User32.SendMessage(this.LVHandle, MSG.LVM_GETITEMINDEXRECT, ref lvi, ref itemBounds);
var r = new Rectangle(itemBounds.Left, itemBounds.Top, itemBounds.Right - itemBounds.Left, itemBounds.Bottom - itemBounds.Top);
if (r.IntersectsWith(this.ClientRectangle)) {
var sho = Items[index];
var icon = sho.GetHBitmap(IconSize, true, true);
sho.IsThumbnailLoaded = true;
sho.IsNeedRefreshing = false;
if (icon != IntPtr.Zero) {
Int32 width = 0, height = 0;
Gdi32.ConvertPixelByPixel(icon, out width, out height);
sho.IsOnlyLowQuality = (width > height && width != IconSize) || (width < height && height != IconSize) || (width == height && width != IconSize);
Gdi32.DeleteObject(icon);
this.RedrawItem(index);
}
}
});
}
/// <summary>
/// Selects only the specified items. First runs <see cref="DeSelectAllItems">DeSelectAllItems</see> Then selects all items on a separate thread.
/// </summary>
/// <param name="shellObjectArray"></param>
public void SelectItems(IListItemEx[] shellObjectArray) {
this.DeSelectAllItems();
var selectionThread = new Thread(() => {
foreach (var item in shellObjectArray) {
try {
var exestingItem = this.Items.FirstOrDefault(s => s.Equals(item));
var itemIndex = exestingItem?.ItemIndex ?? -1;
var lvii = new LVITEMINDEX() { iItem = itemIndex, iGroup = this.GetGroupIndex(itemIndex) };
var lvi = new LVITEM() { mask = LVIF.LVIF_STATE, stateMask = LVIS.LVIS_SELECTED, state = LVIS.LVIS_SELECTED };
User32.SendMessage(this.LVHandle, MSG.LVM_SETITEMINDEXSTATE, ref lvii, ref lvi);
} catch (Exception) {
//catch the given key was not found. It happen on fast delete of items
}
}
this.Focus();
});
selectionThread.SetApartmentState(ApartmentState.STA);
selectionThread.Start();
}
