/// <summary>
/// Gets the view for the next visible and enabled button spec of the defined edge.
/// </summary>
/// <param name="align">Edge of buttons caller is interested in searching.</param>
/// <param name="current">Current button that is the marker for searching.</param>
/// <returns>ViewDrawButton reference; otherwise false.</returns>
public virtual ViewDrawButton GetNextVisibleViewButton(PaletteRelativeEdgeAlign align,
ViewDrawButton current)
{
bool found = false;
foreach (ButtonSpecView specView in _specLookup.Values)
{
if (!found)
{
found = (specView.ViewButton == current);
}
else
{
// Is the button actually visible/enabled
if (specView.ViewCenter.Visible &&
specView.ViewButton.Enabled)
{
if (specView.ButtonSpec.Edge == align)
{
return(specView.ViewButton);
}
}
}
}
return(null);
}
/// <summary>
/// Gets the view for the previous visible and enabled button spec of the defined edge.
/// </summary>
/// <param name="align">Edge of buttons caller is interested in searching.</param>
/// <param name="current">Current button that is the marker for searching.</param>
/// <returns>ViewDrawButton reference; otherwise false.</returns>
public virtual ViewDrawButton GetPreviousVisibleViewButton(PaletteRelativeEdgeAlign align,
ViewDrawButton current)
{
ButtonSpecView[] specLookups = new ButtonSpecView[_specLookup.Count];
_specLookup.Values.CopyTo(specLookups, 0);
bool found = false;
for (int i = _specLookup.Count - 1; i >= 0; i--)
{
ButtonSpecView specView = specLookups[i];
if (!found)
{
found = (specView.ViewButton == current);
}
else
{
// Is the button actually visible/enabled
if (specView.ViewCenter.Visible &&
specView.ViewButton.Enabled)
{
if (specView.ButtonSpec.Edge == align)
{
return(specView.ViewButton);
}
}
}
}
return(null);
}
private void CreateOverflowButton()
{
// Create a button used when we overflow the available area
_overflowButton = new ViewDrawButton(_kryptonBreadCrumb.StateDisabled.BreadCrumb,
_kryptonBreadCrumb.StateNormal.BreadCrumb,
_kryptonBreadCrumb.StateTracking.BreadCrumb,
_kryptonBreadCrumb.StatePressed.BreadCrumb,
_kryptonBreadCrumb.GetStateCommon(),
this, VisualOrientation.Top, false)
{
Splitter = true,
TestForFocusCues = true,
DropDownPalette = _kryptonBreadCrumb.GetRedirector()
};
// Create controller for operating the button
ButtonController crumbButtonController = new ButtonController(_overflowButton, _needPaintDelegate)
{
Tag = this,
BecomesFixed = true
};
crumbButtonController.Click += OnOverflowButtonClick;
_overflowButton.MouseController = crumbButtonController;
}
/// <summary>
/// Find the ButtonSpec definition associated with the provided button view.
/// </summary>
/// <param name="viewButton">View to use when searching.</param>
/// <returns>ButtonSpec reference if found; otherwise null.</returns>
public virtual ButtonSpec GetButtonSpecFromView(ViewDrawButton viewButton)
{
foreach (ButtonSpecView specView in _specLookup.Values)
{
if (specView.ViewButton == viewButton)
{
return(specView.ButtonSpec);
}
}
return(null);
}
private void SyncBreadCrumbs()
{
// Remove all existing children
Clear();
// Walk up the bread crumb trail
KryptonBreadCrumbItem item = _kryptonBreadCrumb.SelectedItem;
while (item != null)
{
// If we do not have a button to represent this crumb...
if (!_crumbToButton.TryGetValue(item, out ViewDrawButton crumbButton))
{
// Setup the button for drawing as a drop down button if required
crumbButton = new ViewDrawButton(_kryptonBreadCrumb.StateDisabled.BreadCrumb,
_kryptonBreadCrumb.StateNormal.BreadCrumb,
_kryptonBreadCrumb.StateTracking.BreadCrumb,
_kryptonBreadCrumb.StatePressed.BreadCrumb,
_kryptonBreadCrumb.GetStateCommon(),
item, VisualOrientation.Top, false)
{
Splitter = true,
TestForFocusCues = true,
DropDownPalette = _kryptonBreadCrumb.GetRedirector()
};
// Create controller for operating the button
ButtonController crumbButtonController = new ButtonController(crumbButton, _needPaintDelegate)
{
Tag = item,
BecomesFixed = true
};
crumbButtonController.Click += OnButtonClick;
crumbButton.MouseController = crumbButtonController;
// Add to cache for future use
_crumbToButton.Add(item, crumbButton);
_buttonToCrumb.Add(crumbButton, item);
}
// Only show a drop down button if we have some children to choose from
crumbButton.DropDown = _kryptonBreadCrumb.DropDownNavigation && (item.Items.Count > 0);
// Add crumb to end of child collection
Insert(0, crumbButton);
// Move up another level
item = item.Parent;
}
// Always add the overflow to the first item
Insert(0, _overflowButton);
}
/// <summary>
/// Initialize a new instance of the KryptonCheckButton class.
/// </summary>
public KryptonCheckButton()
{
// Create the extra state needed for the checked additions the the base button
StateCheckedNormal = new PaletteTriple(StateCommon, NeedPaintDelegate);
StateCheckedTracking = new PaletteTriple(StateCommon, NeedPaintDelegate);
StateCheckedPressed = new PaletteTriple(StateCommon, NeedPaintDelegate);
// Create the override handling classes
_overrideCheckedFocus = new PaletteTripleOverride(OverrideFocus, StateCheckedNormal, PaletteState.FocusOverride);
_overrideCheckedNormal = new PaletteTripleOverride(OverrideDefault, _overrideCheckedFocus, PaletteState.NormalDefaultOverride);
_overrideCheckedTracking = new PaletteTripleOverride(OverrideFocus, StateCheckedTracking, PaletteState.FocusOverride);
_overrideCheckedPressed = new PaletteTripleOverride(OverrideFocus, StateCheckedPressed, PaletteState.FocusOverride);
// Add the checked specific palettes to the existing view button
ViewDrawButton.SetCheckedPalettes(_overrideCheckedNormal,
_overrideCheckedTracking,
_overrideCheckedPressed);
}
/// <summary>
/// Perform rendering before child elements are rendered.
/// </summary>
/// <param name="context">Rendering context.</param>
public override void RenderBefore(RenderContext context)
{
foreach (ViewBase child in this)
{
// Only interested in updating view buttons
if (child is ViewDrawButton)
{
// Cast to correct type
ViewDrawButton crumbButton = child as ViewDrawButton;
// That are associated with crumb items
if (_buttonToCrumb.TryGetValue(crumbButton, out KryptonBreadCrumbItem crumbItem))
{
// If the button is pressed then point button downwards,
// otherwise we point in the direction the buttons layed out.
crumbButton.DropDownOrientation = crumbButton.ElementState == PaletteState.Pressed ? VisualOrientation.Top : VisualOrientation.Left;
}
}
}
base.RenderBefore(context);
}
/// <summary>
/// Initialize a new instance of the ButtonSpecView class.
/// </summary>
/// <param name="redirector">Palette redirector.</param>
/// <param name="paletteMetric">Source for metric values.</param>
/// <param name="metricPadding">Padding metric for border padding.</param>
/// <param name="manager">Reference to owning manager.</param>
/// <param name="buttonSpec">Access</param>
public ButtonSpecView(PaletteRedirect redirector,
IPaletteMetric paletteMetric,
PaletteMetricPadding metricPadding,
ButtonSpecManagerBase manager,
ButtonSpec buttonSpec)
{
Debug.Assert(redirector != null);
Debug.Assert(manager != null);
Debug.Assert(buttonSpec != null);
// Remember references
_redirector = redirector;
Manager = manager;
ButtonSpec = buttonSpec;
_finishDelegate = OnFinishDelegate;
// Create delegate for paint notifications
NeedPaintHandler needPaint = OnNeedPaint;
// Intercept calls from the button for color remapping and instead use
// the button spec defined map and the container foreground color
RemapPalette = Manager.CreateButtonSpecRemap(redirector, buttonSpec);
// Use a redirector to get button values directly from palette
_palette = new PaletteTripleRedirect(RemapPalette,
PaletteBackStyle.ButtonButtonSpec,
PaletteBorderStyle.ButtonButtonSpec,
PaletteContentStyle.ButtonButtonSpec,
needPaint);
// Create the view for displaying a button
ViewButton = new ViewDrawButton(_palette, _palette, _palette, _palette,
paletteMetric, this, VisualOrientation.Top, false);
// Associate the view with the source component (for design time support)
if (buttonSpec.AllowComponent)
{
ViewButton.Component = buttonSpec;
}
// Use a view center to place button in centre of given space
ViewCenter = new ViewLayoutCenter(paletteMetric, metricPadding, VisualOrientation.Top)
{
ViewButton
};
// Create a controller for managing button behavior
ButtonSpecViewControllers controllers = CreateController(ViewButton, needPaint, OnClick);
ViewButton.MouseController = controllers.MouseController;
ViewButton.SourceController = controllers.SourceController;
ViewButton.KeyController = controllers.KeyController;
// We need notifying whenever a button specification property changes
ButtonSpec.ButtonSpecPropertyChanged += OnPropertyChanged;
// Associate the button spec with the view that is drawing it
ButtonSpec.SetView(ViewButton);
// Finally update view with current button spec settings
UpdateButtonStyle();
UpdateVisible();
UpdateEnabled();
UpdateChecked();
}
/// <summary>
/// Initialize a new instance of the KryptonDropButton class.
/// </summary>
public KryptonDropButton()
{
// We generate click events manually, suppress default
// production of them by the base Control class
SetStyle(ControlStyles.StandardClick |
ControlStyles.StandardDoubleClick, false);
// Set default button properties
_style = ButtonStyle.Standalone;
DialogResult = DialogResult.None;
_useMnemonic = true;
// Create content storage
Values = CreateButtonValues(NeedPaintDelegate);
Values.TextChanged += OnButtonTextChanged;
Images = new DropDownButtonImages(NeedPaintDelegate);
// Image need an extra redirector to check the local images first
_paletteDropDownButtonImages = new PaletteRedirectDropDownButton(Redirector, Images);
// Create the palette storage
StateCommon = new PaletteTripleRedirect(Redirector, PaletteBackStyle.ButtonStandalone, PaletteBorderStyle.ButtonStandalone, PaletteContentStyle.ButtonStandalone, NeedPaintDelegate);
StateDisabled = new PaletteTriple(StateCommon, NeedPaintDelegate);
StateNormal = new PaletteTriple(StateCommon, NeedPaintDelegate);
StateTracking = new PaletteTriple(StateCommon, NeedPaintDelegate);
StatePressed = new PaletteTriple(StateCommon, NeedPaintDelegate);
OverrideDefault = new PaletteTripleRedirect(Redirector, PaletteBackStyle.ButtonStandalone, PaletteBorderStyle.ButtonStandalone, PaletteContentStyle.ButtonStandalone, NeedPaintDelegate);
OverrideFocus = new PaletteTripleRedirect(Redirector, PaletteBackStyle.ButtonStandalone, PaletteBorderStyle.ButtonStandalone, PaletteContentStyle.ButtonStandalone, NeedPaintDelegate);
// Create the override handling classes
_overrideFocus = new PaletteTripleOverride(OverrideFocus, StateNormal, PaletteState.FocusOverride);
_overrideNormal = new PaletteTripleOverride(OverrideDefault, _overrideFocus, PaletteState.NormalDefaultOverride);
_overrideTracking = new PaletteTripleOverride(OverrideFocus, StateTracking, PaletteState.FocusOverride);
_overridePressed = new PaletteTripleOverride(OverrideFocus, StatePressed, PaletteState.FocusOverride);
// Create the view button instance
_drawButton = new ViewDrawButton(StateDisabled,
_overrideNormal,
_overrideTracking,
_overridePressed,
new PaletteMetricRedirect(Redirector),
this,
VisualOrientation.Top,
UseMnemonic)
{
// Set default button state
DropDown = true,
Splitter = true,
TestForFocusCues = true,
DropDownPalette = _paletteDropDownButtonImages
};
// Create a button controller to handle button style behaviour
_buttonController = new ButtonController(_drawButton, NeedPaintDelegate)
{
BecomesFixed = true
};
// Assign the controller to the view element to treat as a button
_drawButton.MouseController = _buttonController;
_drawButton.KeyController = _buttonController;
_drawButton.SourceController = _buttonController;
// Need to know when user clicks the button view or mouse selects it
_buttonController.Click += OnButtonClick;
_buttonController.MouseSelect += OnButtonSelect;
// Create the view manager instance
ViewManager = new ViewManager(this, _drawButton);
}
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;
}
}
}
/// <summary>
/// Initialize a new instance of the ViewDrawMenuCheckButton class.
/// </summary>
/// <param name="provider">Reference to provider.</param>
/// <param name="checkButton">Reference to owning check button entry.</param>
public ViewDrawMenuCheckButton(IContextMenuProvider provider,
KryptonContextMenuCheckButton checkButton)
{
_provider = provider;
KryptonContextMenuCheckButton = checkButton;
// Create fixed storage of the content values
_contentValues = new FixedContentValue(ResolveText,
ResolveExtraText,
ResolveImage,
ResolveImageTransparentColor);
// Decide on the enabled state of the display
ItemEnabled = provider.ProviderEnabled && ResolveEnabled;
// Give the heading object the redirector to use when inheriting values
KryptonContextMenuCheckButton.SetPaletteRedirect(provider.ProviderRedirector);
// Create the view button instance
ViewDrawButton = new ViewDrawButton(checkButton.OverrideDisabled,
checkButton.OverrideNormal,
checkButton.OverrideTracking,
checkButton.OverridePressed,
new PaletteMetricRedirect(provider.ProviderRedirector),
_contentValues,
VisualOrientation.Top,
true);
// Add the checked specific palettes to the existing view button
ViewDrawButton.SetCheckedPalettes(checkButton.OverrideCheckedNormal,
checkButton.OverrideCheckedTracking,
checkButton.OverrideCheckedPressed);
ViewDrawButton.Enabled = ItemEnabled;
ViewDrawButton.Checked = ResolveChecked;
// Place the check box on the left of the available space but inside separators
_innerDocker = new ViewLayoutDocker
{
{ ViewDrawButton, ViewDockStyle.Fill },
{ new ViewLayoutSeparator(1), ViewDockStyle.Right },
{ new ViewLayoutSeparator(1), ViewDockStyle.Left },
{ new ViewLayoutSeparator(1), ViewDockStyle.Top },
{ new ViewLayoutSeparator(1), ViewDockStyle.Bottom }
};
// Use outer docker so that any extra space not needed is used by the null
_outerDocker = new ViewLayoutDocker
{
{ _innerDocker, ViewDockStyle.Top },
{ new ViewLayoutNull(), ViewDockStyle.Fill }
};
// Use context menu specific version of the check box controller
MenuCheckButtonController mcbc = new MenuCheckButtonController(provider.ProviderViewManager, _innerDocker, this, provider.ProviderNeedPaintDelegate);
mcbc.Click += OnClick;
_innerDocker.MouseController = mcbc;
_innerDocker.KeyController = mcbc;
// Add docker as the composite content
Add(_outerDocker);
// Want to know when a property changes whilst displayed
KryptonContextMenuCheckButton.PropertyChanged += OnPropertyChanged;
// We need to know if a property of the command changes
if (KryptonContextMenuCheckButton.KryptonCommand != null)
{
_cachedCommand = KryptonContextMenuCheckButton.KryptonCommand;
KryptonContextMenuCheckButton.KryptonCommand.PropertyChanged += OnCommandPropertyChanged;
}
}
