internal static void UpdateToolBarPosition(RadToolBarTray tray, RadToolBar toolBar, ToolBarPositionInfo positionInfo, bool allowNewBandCreation)
{
toolBar.Band = (allowNewBandCreation && positionInfo.NewBand.HasValue) ? positionInfo.NewBand.Value : (positionInfo.Band.HasValue ? positionInfo.Band.Value : 0);
toolBar.BandIndex = positionInfo.BandIndex;
for (int i = 0; i < positionInfo.BandIndex; i++)
{
positionInfo.ToolBars[i].BandIndex = i < positionInfo.BandIndex ? i : i + 1;
}
}
private static Dictionary <int, List <RadToolBar> > GetBandsDict(RadToolBarTray tray)
{
Dictionary <int, List <RadToolBar> > bandsDict = new Dictionary <int, List <RadToolBar> >();
foreach (RadToolBar toolBar in tray.Items)
{
if (!bandsDict.ContainsKey(toolBar.Band))
{
bandsDict[toolBar.Band] = new List <RadToolBar>();
}
bandsDict[toolBar.Band].Add(toolBar);
}
return(bandsDict);
}
private static void OnTrayOwnerChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if (e.NewValue == null)
{
return;
}
RadToolBarTray trayOwner = e.NewValue as RadToolBarTray;
Border border = d as Border;
if (trayOwner != null && border != null)
{
TrayToIndicatorBorderDict.Add(trayOwner, border);
}
}
private static void TrayDraggedOver(object sender, Telerik.Windows.DragDrop.DragEventArgs e)
{
RadToolBarTray tray = sender as RadToolBarTray;
DragDropInfo info = GetDragDropInfo(e.Data);
if (tray == null || info == null)
{
return;
}
var positionInfo = BandsUtilities.CalculateToolBarPositionInfo(info.ToolBar, tray, e.GetPosition(tray));
bool allowNewBandCreation = GetNewBandMode(tray) == NewBandMode.Live;
BandsUtilities.UpdateToolBarPosition(tray, info.ToolBar, positionInfo, allowNewBandCreation);
UpdateNewBandIndicator(info, positionInfo, tray);
}
internal static ToolBarPositionInfo CalculateToolBarPositionInfo(RadToolBar sourceToolBar, RadToolBarTray tray, Point mousePosition)
{
var band = CalculateBand(sourceToolBar, tray, mousePosition);
List<RadToolBar> toolBars = new List<RadToolBar>();
foreach (RadToolBar toolBar in tray.Items)
{
if (toolBar != sourceToolBar && toolBar.Band == band.Band)
{
toolBars.Add(toolBar);
}
}
toolBars = toolBars.OrderBy(tb => tb.BandIndex).ToList();
int bandIndex = CalculateBandIndex(tray.Orientation, sourceToolBar, toolBars, mousePosition);
return new ToolBarPositionInfo(band.Band, band.NewBand, bandIndex, toolBars);
}
private static void InitializeHost(RadToolBar toolBar, double left, double top)
{
Border border = new Border();
border.Background = new SolidColorBrush(new Color {
A = 50, R = 127, G = 127, B = 127
});
border.CornerRadius = new CornerRadius(3);
RadToolBarTray tray = new RadToolBarTray();
tray.Orientation = toolBar.Orientation;
tray.Items.Add(toolBar);
border.Child = tray;
double hMargin = DragDropManager.MinimumHorizontalDragDistance;
double vMargin = DragDropManager.MinimumVerticalDragDistance;
tray.Margin = new Thickness(hMargin, vMargin, hMargin, vMargin);
DragDropManager.AddDragInitializeHandler(tray, TrayDragInitialized);
FrameworkElement host = InitializeWindowHost(border, left - hMargin - 1, top - vMargin);
trayToHostDict[tray] = host;
}
private static void OnIsDragDropEnabledChanged(DependencyObject target, DependencyPropertyChangedEventArgs args)
{
RadToolBarTray tray = (RadToolBarTray)target;
if ((bool)args.OldValue)
{
DragDropManager.RemoveDragInitializeHandler(tray, TrayDragInitialized);
DragDropManager.RemoveDragEnterHandler(tray, TrayDragEntered);
DragDropManager.RemoveDragOverHandler(tray, TrayDraggedOver);
DragDropManager.RemoveDragLeaveHandler(tray, TrayDragLeft);
DragDropManager.RemoveDropHandler(tray, TrayDropped);
}
if ((bool)args.NewValue)
{
DragDropManager.AddDragInitializeHandler(tray, TrayDragInitialized);
DragDropManager.AddDragEnterHandler(tray, TrayDragEntered);
DragDropManager.AddDragOverHandler(tray, TrayDraggedOver);
DragDropManager.AddDragLeaveHandler(tray, TrayDragLeft);
DragDropManager.AddDropHandler(tray, TrayDropped);
}
}
private static void TrayDragEntered(object sender, Telerik.Windows.DragDrop.DragEventArgs e)
{
RadToolBarTray tray = sender as RadToolBarTray;
DragDropInfo info = GetDragDropInfo(e.Data);
if (tray == null || info == null)
{
return;
}
lastInitializedInfo = null;
if (!tray.Items.Contains(info.ToolBar))
{
var positionInfo = BandsUtilities.CalculateToolBarPositionInfo(info.ToolBar, tray, e.GetPosition(tray));
MoveToolBarToTray(info, tray);
bool allowNewBandCreation = GetNewBandMode(tray) == NewBandMode.Live;
BandsUtilities.UpdateToolBarPosition(tray, info.ToolBar, positionInfo, allowNewBandCreation);
UpdateNewBandIndicator(info, positionInfo, tray);
}
e.Handled = true;
}
private static void TrayDragInitialized(object sender, DragInitializeEventArgs e)
{
RadToolBarTray tray = sender as RadToolBarTray;
RadToolBar toolBar = e.Source as RadToolBar;
if (tray == null || toolBar == null)
{
return;
}
DragDropInfo info = new DragDropInfo(toolBar, tray);
lastInitializedInfo = info;
if (trayToHostDict.ContainsKey(tray) || !tray.IsMouseOver)
{
MoveToolBarToDragVisual(info, tray);
}
else
{
SetHitTesting(info.Tray.Items);
}
SetActiveToolBarStyle(info.ToolBar);
if (trayToHostDict.ContainsKey(info.Tray))
{
trayToHostDict[info.Tray].Opacity = 0;
}
DragDropManager.AddDragDropCompletedHandler(info.ToolBar, ToolBarDragDropCompleted);
DragDropManager.AddGiveFeedbackHandler(info.ToolBar, ToolBarGiveFeedback);
e.Data = info;
e.DragVisual = info.DragVisual;
e.DragVisualOffset = e.RelativeStartPoint;
e.AllowedEffects = DragDropEffects.All;
e.Handled = true;
}
private static void TrayDragInitialized(object sender, DragInitializeEventArgs e)
{
RadToolBarTray tray = sender as RadToolBarTray;
RadToolBar toolBar = e.Source as RadToolBar;
if (tray == null || toolBar == null)
{
return;
}
DragDropInfo info = new DragDropInfo(toolBar, tray);
lastInitializedInfo = info;
SetActiveToolBarStyle(info.ToolBar);
DragDropManager.AddDragDropCompletedHandler(info.ToolBar, ToolBarDragDropCompleted);
e.DragVisual = CreateDragImageFromToolBar(info.ToolBar);
e.Data = info;
e.DragVisualOffset = e.RelativeStartPoint;
e.AllowedEffects = DragDropEffects.All;
e.Handled = true;
}
public static void SetTrayOwner(DependencyObject obj, RadToolBarTray value)
{
obj.SetValue(TrayOwnerProperty, value);
}
private static void UpdateNewBandIndicator(DragDropInfo info, BandsUtilities.ToolBarPositionInfo positionInfo, RadToolBarTray tray)
{
if (GetNewBandMode(tray) != NewBandMode.Indicator)
{
return;
}
if (positionInfo.NewBand.HasValue)
{
double margin = 3;
int band = positionInfo.NewBand.Value;
if (tray.Orientation == Orientation.Horizontal)
{
ToolBarTrayUtilitiesSL.TrayToIndicatorBorderDict[tray].BorderThickness = new Thickness(0, band < 0 ? margin : 0, 0, band < 0 ? 0 : margin);
}
else
{
ToolBarTrayUtilitiesSL.TrayToIndicatorBorderDict[tray].BorderThickness = new Thickness(band < 0 ? margin : 0, 0, band < 0 ? 0 : margin, 0);
}
}
else
{
HideNewBandIndicator(tray);
}
}
internal DragDropInfo(RadToolBar toolBar, RadToolBarTray tray)
{
this.ToolBar = toolBar;
this.Tray = tray;
this.DragVisual = new Border();
}
internal static ToolBarPositionInfo CalculateToolBarPositionInfo(RadToolBar sourceToolBar, RadToolBarTray tray, Point mousePosition)
{
var band = CalculateBand(sourceToolBar, tray, mousePosition);
List <RadToolBar> toolBars = new List <RadToolBar>();
foreach (RadToolBar toolBar in tray.Items)
{
if (toolBar != sourceToolBar && toolBar.Band == band.Band)
{
toolBars.Add(toolBar);
}
}
toolBars = toolBars.OrderBy(tb => tb.BandIndex).ToList();
int bandIndex = CalculateBandIndex(tray.Orientation, sourceToolBar, toolBars, mousePosition);
return(new ToolBarPositionInfo(band.Band, band.NewBand, bandIndex, toolBars));
}
private static void MoveToolBarToDragVisual(DragDropInfo info, RadToolBarTray tray)
{
tray.Items.Remove(info.ToolBar);
info.DragVisual.Child = info.ToolBar;
}
private static BandInfo CalculateBand(RadToolBar toolBar, RadToolBarTray tray, Point mousePosition)
{
double position = tray.Orientation == Orientation.Horizontal ? mousePosition.Y : mousePosition.X;
double newBandVicinity = 6;
int? newBand = null;
if (position < newBandVicinity)
{
// Create new band, to left or to top.
newBand = -1;
}
var bands = GetBandsDict(tray);
double trayLength = tray.Orientation == Orientation.Horizontal ? tray.ActualHeight : tray.ActualWidth;
if (trayLength - newBandVicinity < position)
{
// Create new band, to right or to bottom.
newBand = bands.Keys.Count;
}
Func<RadToolBar, double> length = tb => tray.Orientation == Orientation.Horizontal ?
(tb.ActualHeight + tb.Margin.Top + tb.Margin.Bottom) :
(tb.ActualWidth + tb.Margin.Left + tb.Margin.Right);
List<int> keys = bands.Keys.ToList();
int? existingBand = null;
double currentPosition = 0;
for (int i = 0; i < keys.Count; i++)
{
existingBand = keys[i];
double bandLength = length(bands[keys[i]][0]);
if (position <= currentPosition + bandLength)
{
if (keys[i] == 1 &&
bands[keys[0]].Count == 1 &&
bands[keys[0]][0] == toolBar &&
position < currentPosition + (1 * newBandVicinity))
{
// Avoid flicker when the dragged toolbar is the only element in the first band.
existingBand = 0;
}
else if (keys[i] == keys.Count - 2 &&
bands[keys[keys.Count - 1]].Count == 1 &&
bands[keys[keys.Count - 1]][0] == toolBar &&
currentPosition + bandLength - (1 * newBandVicinity) < position)
{
// Avoid flicker when the dragged toolbar is the only element in the last band.
existingBand = keys.Count - 1;
}
break;
}
currentPosition += bandLength;
}
if (newBand.HasValue && existingBand.HasValue && bands[existingBand.Value].Count == 1 && bands[existingBand.Value][0] == toolBar)
{
// A new band will not be created because the dragged bar is the only element in the existing band.
newBand = null;
}
return new BandInfo { Band = existingBand, NewBand = newBand };
}
private static SortedDictionary<int, List<RadToolBar>> GetBandsDict(RadToolBarTray tray)
{
SortedDictionary<int, List<RadToolBar>> bandsDict = new SortedDictionary<int, List<RadToolBar>>();
foreach (RadToolBar toolBar in tray.Items)
{
if (!bandsDict.ContainsKey(toolBar.Band))
{
bandsDict[toolBar.Band] = new List<RadToolBar>();
}
bandsDict[toolBar.Band].Add(toolBar);
}
return bandsDict;
}
private static void MoveToolBarToTray(DragDropInfo info, RadToolBarTray tray)
{
info.Tray.Items.Remove(info.ToolBar);
tray.Items.Add(info.ToolBar);
info.Tray = tray;
info.DragVisual.Child = null;
// Prevents Flickering when dragging over tray and the mouse is over.
info.ToolBar.IsHitTestVisible = false;
}
public static void SetTrayOwner(DependencyObject obj, RadToolBarTray value)
{
obj.SetValue(TrayOwnerProperty, value);
}
internal DragDropInfo(RadToolBar toolBar, RadToolBarTray tray)
{
this.ToolBar = toolBar;
this.Tray = tray;
this.DragVisual = new Border();
}
private static void MoveToolBarToTray(DragDropInfo info, RadToolBarTray tray)
{
info.DragVisual.Child = null;
info.Tray.Items.Remove(info.ToolBar);
tray.Items.Add(info.ToolBar);
}
private static void HideNewBandIndicator(RadToolBarTray tray)
{
if (GetNewBandMode(tray) != NewBandMode.Indicator)
{
return;
}
ToolBarTrayUtilities.TrayToIndicatorBorderDict[tray].BorderThickness = new Thickness();
}
private static void UpdateNewBandIndicator(DragDropInfo info, BandsUtilities.ToolBarPositionInfo positionInfo, RadToolBarTray tray)
{
if (GetNewBandMode(tray) != NewBandMode.Indicator)
{
return;
}
if (positionInfo.NewBand.HasValue)
{
double margin = 3;
int band = positionInfo.NewBand.Value;
if (tray.Orientation == Orientation.Horizontal)
{
ToolBarTrayUtilities.TrayToIndicatorBorderDict[tray].BorderThickness = new Thickness(0, band < 0 ? margin : 0, 0, band < 0 ? 0 : margin);
}
else
{
ToolBarTrayUtilities.TrayToIndicatorBorderDict[tray].BorderThickness = new Thickness(band < 0 ? margin : 0, 0, band < 0 ? 0 : margin, 0);
}
}
else
{
HideNewBandIndicator(tray);
}
}
private static void MoveToolBarToDragVisual(DragDropInfo info, RadToolBarTray tray)
{
tray.Items.Remove(info.ToolBar);
info.DragVisual.Child = info.ToolBar;
}
private static BandInfo CalculateBand(RadToolBar toolBar, RadToolBarTray tray, Point mousePosition)
{
double position = tray.Orientation == Orientation.Horizontal ? mousePosition.Y : mousePosition.X;
double newBandVicinity = 6;
int?newBand = null;
if (position < newBandVicinity)
{
// Create new band, to left or to top.
newBand = -1;
}
var bands = GetBandsDict(tray);
double trayLength = tray.Orientation == Orientation.Horizontal ? tray.ActualHeight : tray.ActualWidth;
if (trayLength - newBandVicinity < position)
{
// Create new band, to right or to bottom.
newBand = bands.Keys.Count;
}
Func <RadToolBar, double> length = tb => tray.Orientation == Orientation.Horizontal ?
(tb.ActualHeight + tb.Margin.Top + tb.Margin.Bottom) :
(tb.ActualWidth + tb.Margin.Left + tb.Margin.Right);
List <int> keys = bands.Keys.ToList();
int? existingBand = null;
double currentPosition = 0;
for (int i = 0; i < keys.Count; i++)
{
existingBand = keys[i];
double bandLength = length(bands[keys[i]][0]);
if (position <= currentPosition + bandLength)
{
if (keys[i] == 1 &&
bands[keys[0]].Count == 1 &&
bands[keys[0]][0] == toolBar &&
position < currentPosition + (1 * newBandVicinity))
{
// Avoid flicker when the dragged toolbar is the only element in the first band.
existingBand = 0;
}
else if (keys[i] == keys.Count - 2 &&
bands[keys[keys.Count - 1]].Count == 1 &&
bands[keys[keys.Count - 1]][0] == toolBar &&
currentPosition + bandLength - (1 * newBandVicinity) < position)
{
// Avoid flicker when the dragged toolbar is the only element in the last band.
existingBand = keys.Count - 1;
}
break;
}
currentPosition += bandLength;
}
if (newBand.HasValue && existingBand.HasValue && bands[existingBand.Value].Count == 1 && bands[existingBand.Value][0] == toolBar)
{
// A new band will not be created because the dragged bar is the only element in the existing band.
newBand = null;
}
return(new BandInfo {
Band = existingBand, NewBand = newBand
});
}
private static void InitializeHost(RadToolBar toolBar, double left, double top)
{
Border border = new Border();
border.Background = new SolidColorBrush(new Color { A = 50, R = 127, G = 127, B = 127 });
border.CornerRadius = new CornerRadius(3);
RadToolBarTray tray = new RadToolBarTray();
tray.Orientation = toolBar.Orientation;
tray.Items.Add(toolBar);
border.Child = tray;
double hMargin = DragDropManager.MinimumHorizontalDragDistance;
double vMargin = DragDropManager.MinimumVerticalDragDistance;
tray.Margin = new Thickness(hMargin, vMargin, hMargin, vMargin);
DragDropManager.AddDragInitializeHandler(tray, TrayDragInitialized);
FrameworkElement host = InitializeWindowHost(border, left - hMargin - 1, top - vMargin);
trayToHostDict[tray] = host;
}
private static void MoveToolBarToTray(DragDropInfo info, RadToolBarTray tray)
{
info.DragVisual.Child = null;
info.Tray.Items.Remove(info.ToolBar);
tray.Items.Add(info.ToolBar);
}