/// <summary>
/// Initialize a new instance of the ViewDrawMenuImageColumn class.
/// </summary>
/// <param name="items">Reference to the owning collection.</param>
/// <param name="palette">Palette for obtaining drawing values.</param>
public ViewDrawMenuImageColumn(KryptonContextMenuItems items,
PaletteDoubleRedirect palette)
: base(items.StateNormal.Back, items.StateNormal.Border)
{
// Give the items collection the redirector to use when inheriting values
items.SetPaletteRedirect(palette);
_separator = new ViewLayoutSeparator(0);
Add(_separator);
}
private ViewBase AddColumn(IContextMenuProvider provider,
KryptonContextMenuItems items,
ViewLayoutStack columns,
bool standardStyle,
bool imageColumn)
{
// Create a pile specific to organising menu items
ViewLayoutMenuItemsPile menuItemPile = new ViewLayoutMenuItemsPile(provider, items, standardStyle, imageColumn);
// The pile is the root item for the new column
columns.Add(menuItemPile);
// Child items are placed inside the column stack
return(menuItemPile.ItemStack);
}
/// <summary>
/// Initialize a new instance of the ViewLayoutMenuItemsPile class.
/// </summary>
/// <param name="provider">Provider of context menu values.</param>
/// <param name="items">Reference to the owning collection.</param>
/// <param name="standardStyle">Draw items with standard or alternate style.</param>
/// <param name="imageColumn">Draw an image background for the item images.</param>
public ViewLayoutMenuItemsPile(IContextMenuProvider provider,
KryptonContextMenuItems items,
bool standardStyle,
bool imageColumn)
{
// Cache access to the highlight item palette
_paletteItemHighlight = provider.ProviderStateCommon.ItemHighlight;
// Create and place an image column inside a docker so it appears on the left side
_imageColumn = new ViewDrawMenuImageColumn(items, provider.ProviderStateCommon.ItemImageColumn);
ViewLayoutDocker imageDocker = new ViewLayoutDocker
{
{ _imageColumn, ViewDockStyle.Left }
};
// Only show the image column when in a standard collection of items
imageDocker.Visible = imageColumn;
// Create a vertical stack that contains each individual menu item
ItemStack = new ViewLayoutStack(false)
{
FillLastChild = false
};
// Use a docker with the item stack as the fill
ViewLayoutDocker stackDocker = new ViewLayoutDocker
{
{ ItemStack, ViewDockStyle.Fill }
};
// Grab the padding for around the item stack
Padding itemsPadding = _paletteItemHighlight.GetMetricPadding(PaletteState.Normal, PaletteMetricPadding.ContextMenuItemsCollection);
stackDocker.Add(new ViewLayoutSeparator(itemsPadding.Left), ViewDockStyle.Left);
stackDocker.Add(new ViewLayoutSeparator(itemsPadding.Right), ViewDockStyle.Right);
stackDocker.Add(new ViewLayoutSeparator(itemsPadding.Top), ViewDockStyle.Top);
stackDocker.Add(new ViewLayoutSeparator(itemsPadding.Bottom), ViewDockStyle.Bottom);
// The background of the pile is the image column
Add(imageDocker);
// The foreground of the pile is the stack of menu items
Add(stackDocker);
}
internal void GenerateView(IContextMenuProvider provider,
KryptonContextMenuItems items,
object parent,
ViewLayoutStack columns,
bool standardStyle,
bool imageColumn)
{
// Create the initial column
ViewBase column = AddColumn(provider, items, columns, standardStyle, imageColumn);
// Process each item in the collection in turn
foreach (KryptonContextMenuItemBase item in this)
{
if (item.Visible)
{
// Special handling of separator items
if (item is KryptonContextMenuSeparator separator)
{
// Cast to correct type
// If vertical break....
if (!separator.Horizontal)
{
// Add separator as next column view element
columns.Add(separator.GenerateView(provider, this, columns, standardStyle, imageColumn));
// Start new column for subsequent child items
column = AddColumn(provider, items, columns, standardStyle, imageColumn);
}
else
{
// Add separator view into the current column
column.Add(separator.GenerateView(provider, this, columns, standardStyle, imageColumn));
}
}
else
{
// All other items we just ask them for the view to add
column.Add(item.GenerateView(provider, this, columns, standardStyle, imageColumn));
}
}
}
}
/// <summary>
/// Initializes the designer with the specified component.
/// </summary>
/// <param name="component">The IComponent to associate the designer with.</param>
public override void Initialize(IComponent component)
{
// Validate the parameter reference
if (component == null)
{
throw new ArgumentNullException(nameof(component));
}
// Let base class do standard stuff
base.Initialize(component);
// Cast to correct type
_contextMenuItems = component as KryptonContextMenuItems;
// Get access to the services
_changeService = (IComponentChangeService)GetService(typeof(IComponentChangeService));
// We need to know when we are being removed
_changeService.ComponentRemoving += OnComponentRemoving;
}
private void OnOverflowButtonClick(object sender, MouseEventArgs e)
{
// Only allow a single context menu at a time
if (!_showingContextMenu)
{
// Get access to the controller, view and crumb item
ViewDrawButton viewButton = sender as ViewDrawButton;
ButtonController controller = viewButton.MouseController as ButtonController;
// Create a context menu with a items collection
KryptonContextMenu kcm = new KryptonContextMenu
{
// Use same palette settings for context menu as the main control
Palette = _kryptonBreadCrumb.Palette
};
if (kcm.Palette == null)
{
kcm.PaletteMode = _kryptonBreadCrumb.PaletteMode;
}
// Add an items collection as the root item of the context menu
KryptonContextMenuItems items = new KryptonContextMenuItems();
kcm.Items.Add(items);
// Store lookup between each menu item and the crumb it represents. Prevents
// needing to use the menu item tag for remembering association. Leaving the
// tag free for use by the user.
_menuItemToCrumb = new MenuItemToCrumb();
// Create a new menu item to represent each of the invisible crumbs not children of the root
// (item 0=overflow button, 1=root; 2=child of root, so we start at index 3)
for (int i = 3; i < Count; i++)
{
if (!this[i].Visible)
{
KryptonBreadCrumbItem childCrumb = _buttonToCrumb[(ViewDrawButton)this[i]];
KryptonContextMenuItem childMenu = new KryptonContextMenuItem();
// Store 1-to-1 association
_menuItemToCrumb.Add(childMenu, childCrumb);
// Copy across the display details of the child crumb item
childMenu.Text = childCrumb.ShortText;
childMenu.ExtraText = childCrumb.LongText;
childMenu.Image = childCrumb.Image;
childMenu.ImageTransparentColor = childCrumb.ImageTransparentColor;
childMenu.Click += OnChildCrumbClick;
items.Items.Add(childMenu);
}
}
// Create a new menu item to represent each of the roots children
bool firstRoot = true;
foreach (KryptonBreadCrumbItem childCrumb in _kryptonBreadCrumb.RootItem.Items)
{
// The first time we add an entry
if (firstRoot)
{
// Add a separator if entries already exist
if (items.Items.Count > 0)
{
items.Items.Add(new KryptonContextMenuSeparator());
}
firstRoot = false;
}
KryptonContextMenuItem childMenu = new KryptonContextMenuItem();
// Store 1-to-1 association
_menuItemToCrumb.Add(childMenu, childCrumb);
// Copy across the display details of the child crumb item
childMenu.Text = childCrumb.ShortText;
childMenu.ExtraText = childCrumb.LongText;
childMenu.Image = childCrumb.Image;
childMenu.ImageTransparentColor = childCrumb.ImageTransparentColor;
childMenu.Click += OnChildCrumbClick;
items.Items.Add(childMenu);
}
// Allow the user a chance to alter the menu contents or cancel it entirely
ContextPositionMenuArgs cpma = new ContextPositionMenuArgs(kcm, KryptonContextMenuPositionH.Left, KryptonContextMenuPositionV.Below);
_kryptonBreadCrumb.OnOverflowDropDown(cpma);
// Is there still the need to show a menu that is not empty?
if (!cpma.Cancel &&
(cpma.KryptonContextMenu != null) &&
CommonHelper.ValidKryptonContextMenu(cpma.KryptonContextMenu))
{
// Cache the controller for use in menu close processing, prevents the need to
// store anything in the KryptonContextMenu tag and so free up its use to the user.
_pressedButtonController = controller;
// Show the context menu so user can select the next item for selection
cpma.KryptonContextMenu.Closed += OnKryptonContextMenuClosed;
cpma.KryptonContextMenu.Show(_kryptonBreadCrumb, _kryptonBreadCrumb.RectangleToScreen(new Rectangle(viewButton.ClientRectangle.X,
viewButton.ClientRectangle.Y,
viewButton.ClientRectangle.Width * 2,
viewButton.ClientRectangle.Height)),
cpma.PositionH,
cpma.PositionV);
// do not show another context menu whilst this one is visible
_showingContextMenu = true;
}
else
{
// Button gives a fixed appearance when pressed, without a context menu that is not necessary
controller.RemoveFixed();
// Clicking item makes it become the selected crumb
_kryptonBreadCrumb.SelectedItem = _kryptonBreadCrumb.RootItem;
}
}
}
private void OnButtonClick(object sender, MouseEventArgs e)
{
// Only allow a single context menu at a time
if (!_showingContextMenu)
{
// Get access to the controller, view and crumb item
ViewDrawButton viewButton = sender as ViewDrawButton;
ButtonController controller = viewButton.MouseController as ButtonController;
KryptonBreadCrumbItem breadCrumb = controller.Tag as KryptonBreadCrumbItem;
// Do we need to show a drop down menu?
if (viewButton.DropDown && viewButton.SplitRectangle.Contains(e.Location))
{
// Create a context menu with a items collection
KryptonContextMenu kcm = new KryptonContextMenu
{
// Use same palette settings for context menu as the main control
Palette = _kryptonBreadCrumb.Palette
};
if (kcm.Palette == null)
{
kcm.PaletteMode = _kryptonBreadCrumb.PaletteMode;
}
// Add an items collection as the root item of the context menu
KryptonContextMenuItems items = new KryptonContextMenuItems();
kcm.Items.Add(items);
// Store lookup between each menu item and the crumb it represents. Prevents
// needing to use the menu item tag for remembering association. Leaving the
// tag free for use by the user.
_menuItemToCrumb = new MenuItemToCrumb();
// Create a new menu item to represent each child crumb
foreach (KryptonBreadCrumbItem childCrumb in breadCrumb.Items)
{
KryptonContextMenuItem childMenu = new KryptonContextMenuItem();
// Store 1-to-1 association
_menuItemToCrumb.Add(childMenu, childCrumb);
// Copy across the display details of the child crumb item
childMenu.Text = childCrumb.ShortText;
childMenu.ExtraText = childCrumb.LongText;
childMenu.Image = childCrumb.Image;
childMenu.ImageTransparentColor = childCrumb.ImageTransparentColor;
childMenu.Click += OnChildCrumbClick;
items.Items.Add(childMenu);
}
// Allow the user a chance to alter the menu contents or cancel it entirely
BreadCrumbMenuArgs bcma = new BreadCrumbMenuArgs(breadCrumb, kcm, KryptonContextMenuPositionH.Left, KryptonContextMenuPositionV.Below);
_kryptonBreadCrumb.OnCrumbDropDown(bcma);
// Is there still the need to show a menu that is not empty?
if (!bcma.Cancel &&
(bcma.KryptonContextMenu != null) &&
CommonHelper.ValidKryptonContextMenu(bcma.KryptonContextMenu))
{
// Cache the controller for use in menu close processing, prevents the need to
// store anything in the KryptonContextMenu tag and so free up its use to the user.
_pressedButtonController = controller;
// Show the context menu so user can select the next item for selection
bcma.KryptonContextMenu.Closed += OnKryptonContextMenuClosed;
bcma.KryptonContextMenu.Show(_kryptonBreadCrumb, _kryptonBreadCrumb.RectangleToScreen(new Rectangle(viewButton.SplitRectangle.X - viewButton.SplitRectangle.Width,
viewButton.SplitRectangle.Y,
viewButton.SplitRectangle.Width * 2,
viewButton.SplitRectangle.Height)),
bcma.PositionH,
bcma.PositionV);
// do not show another context menu whilst this one is visible
_showingContextMenu = true;
}
else
{
// Button gives a fixed appearance when pressed, without a context menu that is not necessary
controller.RemoveFixed();
}
}
else
{
// Button gives a fixed appearance when pressed, without a context menu that is not necessary
controller.RemoveFixed();
// Clicking item makes it become the selected crumb
_kryptonBreadCrumb.SelectedItem = breadCrumb;
}
}
}
