Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WinForms / System / WinForms / Design / ToolStripPanelDesigner.cs / 1 / ToolStripPanelDesigner.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
/*
*/
namespace System.Windows.Forms.Design
{
using System.Design;
using System.Runtime.InteropServices;
using System.ComponentModel;
using System.Collections;
using System.Diagnostics;
using System;
using System.ComponentModel.Design;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Design;
using System.Windows.Forms;
using Microsoft.Win32;
using System.Windows.Forms.Design.Behavior;
///
/// Designer for the ToolStripPanel
///
internal class ToolStripPanelDesigner : ScrollableControlDesigner
{
// actual component
private ToolStripPanel panel;
// component change service cache
private IComponentChangeService componentChangeSvc;
// default padding value.
private static Padding _defaultPadding = new Padding(0);
// The Desinger host ....
IDesignerHost designerHost;
// the container selector glyph which is associated with this designer.
private ToolStripPanelSelectionGlyph containerSelectorGlyph;
private ToolStripPanelSelectionBehavior behavior;
//Designer context Menu for this designer
private BaseContextMenuStrip contextMenu;
// The SelectionService..
ISelectionService selectionSvc;
private MenuCommand designerShortCutCommand = null;
private MenuCommand oldShortCutCommand = null;
///
/// Creates a Dashed-Pen of appropriate color.
///
private Pen BorderPen
{
get
{
Color penColor = Control.BackColor.GetBrightness() < .5 ?
ControlPaint.Light(Control.BackColor) :
ControlPaint.Dark(Control.BackColor);
Pen pen = new Pen(penColor);
pen.DashStyle = DashStyle.Dash;
return pen;
}
}
// Custom ContextMenu.
private ContextMenuStrip DesignerContextMenu
{
get
{
if (contextMenu == null)
{
contextMenu = new BaseContextMenuStrip(Component.Site, Component as Component);
// If multiple Items Selected dont show the custom properties...
contextMenu.GroupOrdering.Clear();
contextMenu.GroupOrdering.AddRange(new string[] { StandardGroups.Code,
StandardGroups.Verbs,
StandardGroups.Custom,
StandardGroups.Selection,
StandardGroups.Edit,
StandardGroups.Properties});
contextMenu.Text = "CustomContextMenu";
}
return contextMenu;
}
}
// ToolStripPanels if Inherited ACT as Readonly.
protected override InheritanceAttribute InheritanceAttribute
{
get
{
if ((panel != null && panel.Parent is ToolStripContainer) && (base.InheritanceAttribute == InheritanceAttribute.Inherited))
{
return InheritanceAttribute.InheritedReadOnly;
}
return base.InheritanceAttribute;
}
}
///
/// ShadowProperty.
///
private Padding Padding
{
get
{
return (Padding)ShadowProperties["Padding"];
}
set
{
ShadowProperties["Padding"] = value;
}
}
///
/// This designer doesnt particiapte in Snaplines for the controls contained..
///
public override bool ParticipatesWithSnapLines
{
get
{
return false;
}
}
///
/// Retrieves a set of rules concerning the movement capabilities of a component.
/// This should be one or more flags from the SelectionRules class. If no designer
/// provides rules for a component, the component will not get any UI services.
///
public override SelectionRules SelectionRules
{
get
{
SelectionRules rules = base.SelectionRules;
if (panel != null && panel.Parent is ToolStripContainer)
{
rules = SelectionRules.Locked;
}
return rules;
}
}
//ContainerSelectorGlyph .. called from ToolStripContainerActionList to set the Expanded state to false when the panel's visibility is changed.
public ToolStripPanelSelectionGlyph ToolStripPanelSelectorGlyph
{
get
{
return containerSelectorGlyph;
}
}
///
/// ShadowProperty.
///
private bool Visible
{
get
{
return (bool)ShadowProperties["Visible"];
}
set
{
ShadowProperties["Visible"] = value;
panel.Visible = value;
}
}
///
/// Determines if the this designer can parent to the specified desinger --
/// generally this means if the control for this designer can parent the
/// given ControlDesigner's designer.
///
public override bool CanParent(Control control)
{
return (control is ToolStrip);
}
///
/// This designer can be parented to only ToolStripContainer.
///
public override bool CanBeParentedTo(IDesigner parentDesigner)
{
if (panel != null)
{
return !(panel.Parent is ToolStripContainer);
}
return false;
}
///
/// Update the glyph whenever component is changed...
///
private void ComponentChangeSvc_ComponentChanged(object sender, ComponentChangedEventArgs e)
{
if (containerSelectorGlyph != null)
{
containerSelectorGlyph.UpdateGlyph();
}
}
///
/// This is the worker method of all CreateTool methods. It is the only one
/// that can be overridden.
///
protected override IComponent[] CreateToolCore(ToolboxItem tool, int x, int y, int width, int height, bool hasLocation, bool hasSize)
{
if (tool != null)
{
Type toolType = tool.GetType(this.designerHost);
if (!(typeof(ToolStrip).IsAssignableFrom(toolType)))
{
ToolStripContainer parent = panel.Parent as ToolStripContainer;
if (parent != null)
{
ToolStripContentPanel contentPanel = parent.ContentPanel;
if (contentPanel != null)
{
PanelDesigner designer = designerHost.GetDesigner(contentPanel) as PanelDesigner;
if (designer != null)
{
InvokeCreateTool(designer, tool);
}
}
}
}
else
{
base.CreateToolCore(tool, x, y, width, height, hasLocation, hasSize);
}
}
return null;
}
///
/// Disposes of this designer.
///
protected override void Dispose(bool disposing)
{
try
{
base.Dispose(disposing);
}
finally
{
if (disposing) {
if (contextMenu != null) {
contextMenu.Dispose();
}
}
if (selectionSvc != null)
{
selectionSvc.SelectionChanging -= new EventHandler(this.OnSelectionChanging);
selectionSvc.SelectionChanged -= new EventHandler(this.OnSelectionChanged);
selectionSvc = null;
}
if (componentChangeSvc != null)
{
componentChangeSvc.ComponentChanged -= new ComponentChangedEventHandler(ComponentChangeSvc_ComponentChanged);
}
panel.ControlAdded -= new System.Windows.Forms.ControlEventHandler(OnControlAdded);
panel.ControlRemoved -= new System.Windows.Forms.ControlEventHandler(OnControlRemoved);
}
}
///
/// This draws a nice border around our RaftingContainer. We need
/// this because the panel can have no border and you can't
/// tell where it is.
///
///
/// We need to expand the TopToolStripPanel only when the control is Dropped onto the form .. for the first time...
///
internal void ExpandTopPanel()
{
if (containerSelectorGlyph == null)
{
//get the adornerwindow-relative coords for the container control
behavior = new ToolStripPanelSelectionBehavior(panel, Component.Site);
containerSelectorGlyph = new ToolStripPanelSelectionGlyph(Rectangle.Empty, Cursors.Default, panel, Component.Site, behavior);
}
if (panel != null && panel.Dock == DockStyle.Top)
{
panel.Padding = new Padding(0, 0, 25, 25);
containerSelectorGlyph.IsExpanded = true;
}
}
private void OnKeyShowDesignerActions(object sender, EventArgs e)
{
if (containerSelectorGlyph != null)
{
behavior.OnMouseDown(containerSelectorGlyph, MouseButtons.Left, Point.Empty);
}
}
///
/// Since we have to initialize glyphs for SplitterPanel (which is not a part of Components.) we overide the
/// GetGlyphs for the parent.
///
internal Glyph GetGlyph()
{
if (panel != null)
{
// Add own Glyphs...
if (containerSelectorGlyph == null)
{
//get the adornerwindow-relative coords for the container control
behavior = new ToolStripPanelSelectionBehavior(panel, Component.Site);
containerSelectorGlyph = new ToolStripPanelSelectionGlyph(Rectangle.Empty, Cursors.Default, panel, Component.Site, behavior);
}
// Show the Glyph only if Panel is Visible....
if (panel.Visible)
{
return containerSelectorGlyph;
}
}
return null;
}
///
/// This property is used by deriving classes to determine if it returns the control being designed or some other Container ...
/// while adding a component to it.
/// e.g: When SplitContainer is selected and a component is being added ... the SplitContainer designer would return a
/// SelectedPanel as the ParentControl for all the items being added rather than itself.
///
protected override Control GetParentForComponent(IComponent component)
{
Type toolType = component.GetType();
if (typeof(ToolStrip).IsAssignableFrom(toolType))
{
return panel;
}
ToolStripContainer parent = panel.Parent as ToolStripContainer;
if (parent != null)
{
return parent.ContentPanel;
}
return null;
}
///
/// Get the designer set up to run.
///
public override void Initialize(IComponent component)
{
panel = component as ToolStripPanel;
base.Initialize(component);
this.Padding = panel.Padding;
designerHost = (IDesignerHost)component.Site.GetService(typeof(IDesignerHost));
if (selectionSvc == null)
{
selectionSvc = (ISelectionService)GetService(typeof(ISelectionService));
selectionSvc.SelectionChanging += new EventHandler(this.OnSelectionChanging);
selectionSvc.SelectionChanged += new EventHandler(this.OnSelectionChanged);
}
if (designerHost != null)
{
componentChangeSvc = (IComponentChangeService)designerHost.GetService(typeof(IComponentChangeService));
}
if (componentChangeSvc != null)
{
componentChangeSvc.ComponentChanged += new ComponentChangedEventHandler(ComponentChangeSvc_ComponentChanged);
}
//Hook up the ControlAdded Event
panel.ControlAdded += new System.Windows.Forms.ControlEventHandler(OnControlAdded);
panel.ControlRemoved += new System.Windows.Forms.ControlEventHandler(OnControlRemoved);
}
///
/// We need to invlidate the glyphBounds when the glyphs are turned off..
///
internal void InvalidateGlyph()
{
if (containerSelectorGlyph != null)
{
BehaviorService.Invalidate(containerSelectorGlyph.Bounds);
}
}
///
/// Required to CodeGen the Controls collection..
///
private void OnControlAdded(object sender, System.Windows.Forms.ControlEventArgs e)
{
if (e.Control is ToolStrip)
{
//change the padding which might have been set by the Behavior if the panel is Expanded.
panel.Padding = new Padding(0);
if (containerSelectorGlyph != null)
{
containerSelectorGlyph.IsExpanded = false;
}
// smoke the dock property whenever we add a toolstrip to a toolstrip panel.
PropertyDescriptor dockProp = TypeDescriptor.GetProperties(e.Control)["Dock"];
if (dockProp != null)
{
dockProp.SetValue(e.Control, DockStyle.None);
}
//Reset the Glyphs.
// Refer to VsWhidbey : 531684. Dont Refresh the glyph if we are loading the designer.
if (designerHost != null && !designerHost.Loading)
{
SelectionManager selMgr = (SelectionManager)GetService(typeof(SelectionManager));
if (selMgr != null)
{
selMgr.Refresh();
}
}
}
}
///
/// Required to CodeGen the Controls collection..
///
private void OnControlRemoved(object sender, System.Windows.Forms.ControlEventArgs e)
{
if (panel.Controls.Count == 0)
{
if (containerSelectorGlyph != null)
{
containerSelectorGlyph.IsExpanded = false;
}
//Reset the Glyphs.
// Refer to VsWhidbey : 531684. Dont Refresh the glyph if we are loading the designer.
if (designerHost != null && !designerHost.Loading)
{
SelectionManager selMgr = (SelectionManager)GetService(typeof(SelectionManager));
if (selMgr != null)
{
selMgr.Refresh();
}
}
}
}
///
/// Called when ContextMenu is invoked.
///
protected override void OnContextMenu(int x, int y)
{
if (panel != null && panel.Parent is ToolStripContainer)
{
DesignerContextMenu.Show(x, y);
}
else
{
base.OnContextMenu(x, y);
}
}
private void OnSelectionChanging(object sender, EventArgs e)
{
//Remove our DesignerShortCutHandler
if (designerShortCutCommand != null)
{
IMenuCommandService menuCommandService = (IMenuCommandService)GetService(typeof(IMenuCommandService));
if (menuCommandService != null)
{
menuCommandService.RemoveCommand(designerShortCutCommand);
if (oldShortCutCommand != null)
{
menuCommandService.AddCommand(oldShortCutCommand);
}
}
designerShortCutCommand = null;
}
}
private void OnSelectionChanged(object sender, EventArgs e)
{
if (selectionSvc.PrimarySelection == panel)
{
designerShortCutCommand = new MenuCommand(new EventHandler(OnKeyShowDesignerActions), MenuCommands.KeyInvokeSmartTag);
IMenuCommandService menuCommandService = (IMenuCommandService)GetService(typeof(IMenuCommandService));
if (menuCommandService != null)
{
oldShortCutCommand = menuCommandService.FindCommand(MenuCommands.KeyInvokeSmartTag);
if (oldShortCutCommand != null)
{
menuCommandService.RemoveCommand(oldShortCutCommand);
}
menuCommandService.AddCommand(designerShortCutCommand);
}
}
}
///
/// Paint the borders for the panels..
///
protected override void OnPaintAdornments(PaintEventArgs pe)
{
if (!ToolStripDesignerUtils.DisplayInformation.TerminalServer && !ToolStripDesignerUtils.DisplayInformation.HighContrast && !ToolStripDesignerUtils.DisplayInformation.LowResolution)
{
using (Brush b = new SolidBrush(Color.FromArgb(50, Color.White)))
{
pe.Graphics.FillRectangle(b, panel.ClientRectangle);
}
}
DrawBorder(pe.Graphics);
}
protected override void PreFilterEvents(IDictionary events)
{
base.PreFilterEvents(events);
EventDescriptor evnt;
if (panel.Parent is ToolStripContainer)
{
string[] noBrowseEvents = new string[] {
"AutoSizeChanged",
"BindingContextChanged",
"CausesValidationChanged",
"ChangeUICues",
"DockChanged",
"DragDrop",
"DragEnter",
"DragLeave",
"DragOver",
"EnabledChanged",
"FontChanged",
"ForeColorChanged",
"GiveFeedback",
"ImeModeChanged",
"KeyDown",
"KeyPress",
"KeyUp",
"LocationChanged",
"MarginChanged",
"MouseCaptureChanged",
"Move",
"QueryAccessibilityHelp",
"QueryContinueDrag",
"RegionChanged",
"Scroll",
"Validated",
"Validating"
};
for (int i = 0; i < noBrowseEvents.Length; i++)
{
evnt = (EventDescriptor)events[noBrowseEvents[i]];
if (evnt != null)
{
events[noBrowseEvents[i]] = TypeDescriptor.CreateEvent(evnt.ComponentType, evnt, BrowsableAttribute.No);
}
}
}
}
///
/// Set some properties to non-browsable depending on the Parent. (StandAlone ToolStripPanel should support properties that are usually hidden when its a part of ToolStripcontainer)
///
protected override void PreFilterProperties(IDictionary properties)
{
base.PreFilterProperties(properties);
PropertyDescriptor prop;
if (panel.Parent is ToolStripContainer)
{
properties.Remove("Modifiers");
properties.Remove("Locked");
properties.Remove("GenerateMember");
string[] noBrowseProps = new string[] {
"Anchor",
"AutoSize",
"Dock",
"DockPadding",
"Height",
"Location",
"Name",
"Orientation",
"Renderer",
"RowMargin",
"Size",
"Visible",
"Width",
};
for (int i = 0; i < noBrowseProps.Length; i++)
{
prop = (PropertyDescriptor)properties[noBrowseProps[i]];
if (prop != null)
{
properties[noBrowseProps[i]] = TypeDescriptor.CreateProperty(prop.ComponentType, prop, BrowsableAttribute.No, DesignerSerializationVisibilityAttribute.Hidden);
}
}
}
string[] shadowProps = new string[] {
"Padding",
"Visible"
};
Attribute[] empty = new Attribute[0];
for (int i = 0; i < shadowProps.Length; i++)
{
prop = (PropertyDescriptor)properties[shadowProps[i]];
if (prop != null)
{
properties[shadowProps[i]] = TypeDescriptor.CreateProperty(typeof(ToolStripPanelDesigner), prop, empty);
}
}
}
///
/// Should Serialize Padding
///
private bool ShouldSerializePadding()
{
Padding padding = (Padding)ShadowProperties["Padding"];
return !padding.Equals(_defaultPadding);
}
///
/// Should serialize for visible property
///
private bool ShouldSerializeVisible()
{
return !Visible;
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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