/// <summary>
/// When overridden in a derived class, is invoked whenever application code or internal processes call <see cref="M:System.Windows.FrameworkElement.ApplyTemplate"/>.
/// </summary>
public override void OnApplyTemplate()
{
if (popup != null) popup.CustomPopupPlacementCallback -= CustomPopupPlacementMethod;
popup = GetTemplateChild("PART_Popup") as Popup;
if (popup != null)
{
popup.Placement = PlacementMode.Custom;
popup.CustomPopupPlacementCallback += CustomPopupPlacementMethod;
}
editableTextBox = GetTemplateChild("PART_EditableTextBox") as System.Windows.Controls.TextBox;
if (resizeVerticalThumb != null)
{
resizeVerticalThumb.DragDelta -= OnResizeVerticalDelta;
}
resizeVerticalThumb = GetTemplateChild("PART_ResizeVerticalThumb") as Thumb;
if (resizeVerticalThumb != null)
{
resizeVerticalThumb.DragDelta += OnResizeVerticalDelta;
}
if (resizeBothThumb != null)
{
resizeBothThumb.DragDelta -= OnResizeBothDelta;
}
resizeBothThumb = GetTemplateChild("PART_ResizeBothThumb") as Thumb;
if (resizeBothThumb != null)
{
resizeBothThumb.DragDelta += OnResizeBothDelta;
}
menuPanel = GetTemplateChild("PART_MenuPanel") as Panel;
snappedImage = GetTemplateChild("PART_SelectedImage") as Image;
contentSite = GetTemplateChild("PART_ContentSite") as ContentPresenter;
if (contentBorder != null) contentBorder.PreviewMouseDown -= OnContentBorderPreviewMouseDown;
contentBorder = GetTemplateChild("PART_ContentBorder") as Border;
if (contentBorder != null) contentBorder.PreviewMouseDown += OnContentBorderPreviewMouseDown;
galleryPanel = GetTemplateChild("PART_GalleryPanel") as GalleryPanel;
scrollViewer = GetTemplateChild("PART_ScrollViewer") as ScrollViewer;
dropDownBorder = GetTemplateChild("PART_DropDownBorder") as Border;
base.OnApplyTemplate();
}
/// <summary>
/// When overridden in a derived class, is invoked whenever application code or internal processes call
/// <see cref="M:System.Windows.FrameworkElement.ApplyTemplate" />.
/// </summary>
public override void OnApplyTemplate()
{
this.DropDownPopup = this.GetTemplateChild("PART_Popup") as Popup;
if (this.resizeVerticalThumb != null)
{
this.resizeVerticalThumb.DragDelta -= this.OnResizeVerticalDelta;
}
this.resizeVerticalThumb = this.GetTemplateChild("PART_ResizeVerticalThumb") as Thumb;
if (this.resizeVerticalThumb != null)
{
this.resizeVerticalThumb.DragDelta += this.OnResizeVerticalDelta;
}
if (this.resizeBothThumb != null)
{
this.resizeBothThumb.DragDelta -= this.OnResizeBothDelta;
}
this.resizeBothThumb = this.GetTemplateChild("PART_ResizeBothThumb") as Thumb;
if (this.resizeBothThumb != null)
{
this.resizeBothThumb.DragDelta += this.OnResizeBothDelta;
}
this.menuPanel = this.GetTemplateChild("PART_MenuPanel") as Panel;
this.snappedImage = this.GetTemplateChild("PART_SelectedImage") as Image;
this.contentSite = this.GetTemplateChild("PART_ContentSite") as ContentPresenter;
if (this.contentBorder != null) this.contentBorder.PreviewMouseDown -= this.OnContentBorderPreviewMouseDown;
this.contentBorder = this.GetTemplateChild("PART_ContentBorder") as Border;
if (this.contentBorder != null) this.contentBorder.PreviewMouseDown += this.OnContentBorderPreviewMouseDown;
this.galleryPanel = this.GetTemplateChild("PART_GalleryPanel") as GalleryPanel;
this.scrollViewer = this.GetTemplateChild("PART_ScrollViewer") as ScrollViewer;
this.dropDownBorder = this.GetTemplateChild("PART_DropDownBorder") as Border;
base.OnApplyTemplate();
}
/// <summary>
/// When overridden in a derived class, is invoked whenever application
/// code or internal processes call ApplyTemplate
/// </summary>
public override void OnApplyTemplate()
{
this.layoutRoot = this.GetTemplateChild("PART_LayoutRoot") as FrameworkElement;
if (this.expandButton != null)
this.expandButton.Click -= this.OnExpandClick;
this.expandButton = this.GetTemplateChild("PART_ExpandButton") as ToggleButton;
if (this.expandButton != null)
this.expandButton.Click += this.OnExpandClick;
if (this.dropDownButton != null)
this.dropDownButton.Click -= this.OnDropDownClick;
this.dropDownButton = this.GetTemplateChild("PART_DropDownButton") as ToggleButton;
if (this.dropDownButton != null)
this.dropDownButton.Click += this.OnDropDownClick;
if (this.popup != null)
{
this.popup.Opened -= this.OnDropDownOpened;
this.popup.Closed -= this.OnDropDownClosed;
this.popup.PreviewMouseLeftButtonUp -= this.OnPopupPreviewMouseUp;
this.popup.PreviewMouseLeftButtonDown -= this.OnPopupPreviewMouseDown;
}
this.popup = this.GetTemplateChild("PART_Popup") as Popup;
if (this.popup != null)
{
this.popup.Opened += this.OnDropDownOpened;
this.popup.Closed += this.OnDropDownClosed;
this.popup.PreviewMouseLeftButtonUp += this.OnPopupPreviewMouseUp;
this.popup.PreviewMouseLeftButtonDown += this.OnPopupPreviewMouseDown;
KeyboardNavigation.SetControlTabNavigation(this.popup, KeyboardNavigationMode.Cycle);
KeyboardNavigation.SetDirectionalNavigation(this.popup, KeyboardNavigationMode.Cycle);
KeyboardNavigation.SetTabNavigation(this.popup, KeyboardNavigationMode.Cycle);
}
if (this.resizeVerticalThumb != null)
{
this.resizeVerticalThumb.DragDelta -= this.OnResizeVerticalDelta;
}
this.resizeVerticalThumb = this.GetTemplateChild("PART_ResizeVerticalThumb") as Thumb;
if (this.resizeVerticalThumb != null)
{
this.resizeVerticalThumb.DragDelta += this.OnResizeVerticalDelta;
}
if (this.resizeBothThumb != null)
{
this.resizeBothThumb.DragDelta -= this.OnResizeBothDelta;
}
this.resizeBothThumb = this.GetTemplateChild("PART_ResizeBothThumb") as Thumb;
if (this.resizeBothThumb != null)
{
this.resizeBothThumb.DragDelta += this.OnResizeBothDelta;
}
this.menuPanel = this.GetTemplateChild("PART_MenuPanel") as Panel;
if (this.groupsMenuButton != null)
this.groupsMenuButton.Items.Clear();
this.groupsMenuButton = this.GetTemplateChild("PART_FilterDropDownButton") as DropDownButton;
if (this.groupsMenuButton != null)
{
for (int i = 0; i < this.Filters.Count; i++)
{
MenuItem item = new MenuItem();
item.Header = this.Filters[i].Title;
item.Tag = this.Filters[i];
item.IsDefinitive = false;
if (this.Filters[i] == this.SelectedFilter) item.IsChecked = true;
item.Click += this.OnFilterMenuItemClick;
this.groupsMenuButton.Items.Add(item);
}
}
this.galleryPanel = this.GetTemplateChild("PART_GalleryPanel") as GalleryPanel;
if (this.galleryPanel != null)
{
this.galleryPanel.MinItemsInRow = this.MaxItemsInRow;
this.galleryPanel.MaxItemsInRow = this.MaxItemsInRow;
}
this.snappedImage = this.GetTemplateChild("PART_FakeImage") as Image;
this.controlPresenter = this.GetTemplateChild("PART_ContentPresenter") as ContentControl;
this.popupControlPresenter = this.GetTemplateChild("PART_PopupContentPresenter") as ContentControl;
this.scrollViewer = this.GetTemplateChild("PART_ScrollViewer") as ScrollViewer;
}
/// <summary>
/// When overridden in a derived class, is invoked whenever application
/// code or internal processes call ApplyTemplate
/// </summary>
public override void OnApplyTemplate()
{
if (expandButton != null) expandButton.Click -= OnExpandClick;
expandButton = GetTemplateChild("PART_ExpandButton") as ToggleButton;
if (expandButton != null) expandButton.Click += OnExpandClick;
if (dropDownButton != null) dropDownButton.Click -= OnDropDownClick;
dropDownButton = GetTemplateChild("PART_DropDownButton") as ToggleButton;
if (dropDownButton != null) dropDownButton.Click += OnDropDownClick;
layoutRoot = GetTemplateChild("PART_LayoutRoot") as Panel;
if (popup != null)
{
popup.Opened -= OnDropDownOpened;
popup.Closed -= OnDropDownClosed;
popup.PreviewMouseLeftButtonUp -= OnPopupPreviewMouseUp;
popup.PreviewMouseLeftButtonDown -= OnPopupPreviewMouseDown;
}
popup = GetTemplateChild("PART_Popup") as Popup;
if (popup != null)
{
popup.Opened += OnDropDownOpened;
popup.Closed += OnDropDownClosed;
popup.PreviewMouseLeftButtonUp += OnPopupPreviewMouseUp;
popup.PreviewMouseLeftButtonDown += OnPopupPreviewMouseDown;
KeyboardNavigation.SetControlTabNavigation(popup, KeyboardNavigationMode.Cycle);
KeyboardNavigation.SetDirectionalNavigation(popup, KeyboardNavigationMode.Cycle);
KeyboardNavigation.SetTabNavigation(popup, KeyboardNavigationMode.Cycle);
}
if (resizeVerticalThumb != null)
{
resizeVerticalThumb.DragDelta -= OnResizeVerticalDelta;
}
resizeVerticalThumb = GetTemplateChild("PART_ResizeVerticalThumb") as Thumb;
if (resizeVerticalThumb != null)
{
resizeVerticalThumb.DragDelta += OnResizeVerticalDelta;
}
if (resizeBothThumb != null)
{
resizeBothThumb.DragDelta -= OnResizeBothDelta;
}
resizeBothThumb = GetTemplateChild("PART_ResizeBothThumb") as Thumb;
if (resizeBothThumb != null)
{
resizeBothThumb.DragDelta += OnResizeBothDelta;
}
menuPanel = GetTemplateChild("PART_MenuPanel") as Panel;
if (groupsMenuButton != null) groupsMenuButton.Items.Clear();
groupsMenuButton = GetTemplateChild("PART_FilterDropDownButton") as DropDownButton;
if (groupsMenuButton != null)
{
for (int i = 0; i < Filters.Count; i++)
{
MenuItem item = new MenuItem();
item.Header = Filters[i].Title;
item.Tag = Filters[i];
item.IsDefinitive = false;
if (Filters[i] == SelectedFilter) item.IsChecked = true;
item.Click += OnFilterMenuItemClick;
groupsMenuButton.Items.Add(item);
}
}
galleryPanel = GetTemplateChild("PART_GalleryPanel") as GalleryPanel;
if (galleryPanel != null)
{
galleryPanel.MinItemsInRow = MaxItemsInRow;
galleryPanel.MaxItemsInRow = MaxItemsInRow;
}
snappedImage = GetTemplateChild("PART_FakeImage") as Image;
controlPresenter = GetTemplateChild("PART_ContentPresenter") as ContentControl;
popupControlPresenter = GetTemplateChild("PART_PopupContentPresenter") as ContentControl;
scrollViewer = GetTemplateChild("PART_ScrollViewer") as ScrollViewer;
}
static void OnGroupByChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
GalleryPanel galleryPanel = (GalleryPanel)d;
galleryPanel.Invalidate();
}
static void OnItemContainerGeneratorChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
GalleryPanel galleryPanel = (GalleryPanel)d;
galleryPanel.Invalidate();
}
/// <summary>
/// When overridden in a derived class, is invoked whenever application
/// code or internal processes call ApplyTemplate
/// </summary>
public override void OnApplyTemplate()
{
this.layoutRoot = this.GetTemplateChild("PART_LayoutRoot") as FrameworkElement;
if (this.expandButton != null)
{
this.expandButton.Click -= this.OnExpandClick;
}
this.expandButton = this.GetTemplateChild("PART_ExpandButton") as ToggleButton;
if (this.expandButton != null)
{
this.expandButton.Click += this.OnExpandClick;
}
if (this.dropDownButton != null)
{
this.dropDownButton.Click -= this.OnDropDownClick;
}
this.dropDownButton = this.GetTemplateChild("PART_DropDownButton") as ToggleButton;
if (this.dropDownButton != null)
{
this.dropDownButton.Click += this.OnDropDownClick;
}
if (this.popup != null)
{
this.popup.Opened -= this.OnDropDownOpened;
this.popup.Closed -= this.OnDropDownClosed;
this.popup.PreviewMouseLeftButtonUp -= this.OnPopupPreviewMouseUp;
this.popup.PreviewMouseLeftButtonDown -= this.OnPopupPreviewMouseDown;
}
this.popup = this.GetTemplateChild("PART_Popup") as Popup;
if (this.popup != null)
{
this.popup.Opened += this.OnDropDownOpened;
this.popup.Closed += this.OnDropDownClosed;
this.popup.PreviewMouseLeftButtonUp += this.OnPopupPreviewMouseUp;
this.popup.PreviewMouseLeftButtonDown += this.OnPopupPreviewMouseDown;
KeyboardNavigation.SetControlTabNavigation(this.popup, KeyboardNavigationMode.Cycle);
KeyboardNavigation.SetDirectionalNavigation(this.popup, KeyboardNavigationMode.Cycle);
KeyboardNavigation.SetTabNavigation(this.popup, KeyboardNavigationMode.Cycle);
}
if (this.resizeVerticalThumb != null)
{
this.resizeVerticalThumb.DragDelta -= this.OnResizeVerticalDelta;
}
this.resizeVerticalThumb = this.GetTemplateChild("PART_ResizeVerticalThumb") as Thumb;
if (this.resizeVerticalThumb != null)
{
this.resizeVerticalThumb.DragDelta += this.OnResizeVerticalDelta;
}
if (this.resizeBothThumb != null)
{
this.resizeBothThumb.DragDelta -= this.OnResizeBothDelta;
}
this.resizeBothThumb = this.GetTemplateChild("PART_ResizeBothThumb") as Thumb;
if (this.resizeBothThumb != null)
{
this.resizeBothThumb.DragDelta += this.OnResizeBothDelta;
}
this.menuPanel = this.GetTemplateChild("PART_MenuPanel") as Panel;
this.groupsMenuButton?.Items.Clear();
this.groupsMenuButton = this.GetTemplateChild("PART_FilterDropDownButton") as DropDownButton;
if (this.groupsMenuButton != null)
{
foreach (var currentFilter in this.Filters)
{
var item = new MenuItem
{
Header = currentFilter.Title,
Tag = currentFilter,
IsDefinitive = false
};
if (ReferenceEquals(currentFilter, this.SelectedFilter))
{
item.IsChecked = true;
}
item.Click += this.OnFilterMenuItemClick;
this.groupsMenuButton.Items.Add(item);
}
}
this.galleryPanel = this.GetTemplateChild("PART_GalleryPanel") as GalleryPanel;
if (this.galleryPanel != null)
{
this.galleryPanel.MinItemsInRow = this.MinItemsInRow;
this.galleryPanel.MaxItemsInRow = this.MaxItemsInRow;
this.galleryPanel.UpdateMinAndMaxWidth();
}
this.snappedImage = this.GetTemplateChild("PART_FakeImage") as Image;
this.controlPresenter = this.GetTemplateChild("PART_ContentPresenter") as ContentControl;
this.popupControlPresenter = this.GetTemplateChild("PART_PopupContentPresenter") as ContentControl;
this.scrollViewer = this.GetTemplateChild("PART_ScrollViewer") as ScrollViewer;
this.RunInDispatcherAsync(this.ForceContentRefreshToFixLayout, DispatcherPriority.ContextIdle);
}
