//
// ToolStripSplitButton.cs
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Copyright (c) 2006 Jonathan Pobst
//
// Authors:
// Jonathan Pobst (monkey@jpobst.com)
//
#if NET_2_0
using System;
using System.Drawing;
using System.ComponentModel;
using System.Windows.Forms.Design;
namespace System.Windows.Forms{
[DefaultEvent ("ButtonClick")]
[ToolStripItemDesignerAvailability (ToolStripItemDesignerAvailability.ToolStrip | ToolStripItemDesignerAvailability.StatusStrip)]
public class ToolStripSplitButton : ToolStripDropDownItem
{
private bool button_pressed;
private ToolStripItem default_item;
private bool drop_down_button_selected;
private int drop_down_button_width;
#region Public Constructors
public ToolStripSplitButton()
: this (string.Empty, null, null, string.Empty)
{
}
public ToolStripSplitButton (Image image)
: this (string.Empty, image, null, string.Empty)
{
}
public ToolStripSplitButton (string text)
: this (text, null, null, string.Empty)
{
}
public ToolStripSplitButton (string text, Image image)
: this (text, image, null, string.Empty)
{
}
public ToolStripSplitButton (string text, Image image, EventHandler onClick)
: this (text, image, onClick, string.Empty)
{
}
public ToolStripSplitButton (string text, Image image, params ToolStripItem[] dropDownItems)
: base (text, image, dropDownItems)
{
this.ResetDropDownButtonWidth ();
}
public ToolStripSplitButton (string text, Image image, EventHandler onClick, string name)
: base (text, image, onClick, name)
{
this.ResetDropDownButtonWidth ();
}
#endregion
#region Public Properties
[DefaultValue (true)]
public new bool AutoToolTip {
get { return base.AutoToolTip; }
set { base.AutoToolTip = value; }
}
[Browsable (false)]
public Rectangle ButtonBounds {
get { return new Rectangle (Bounds.Left, Bounds.Top, this.Bounds.Width - this.drop_down_button_width - 1, this.Height); }
}
[Browsable (false)]
public bool ButtonPressed {
get { return this.button_pressed; }
}
[Browsable (false)]
public bool ButtonSelected {
get { return base.Selected; }
}
[Browsable (false)]
[DefaultValue (null)]
public ToolStripItem DefaultItem {
get { return this.default_item; }
set {
if (this.default_item != value) {
this.default_item = value;
this.OnDefaultItemChanged (EventArgs.Empty);
}
}
}
[Browsable (false)]
public Rectangle DropDownButtonBounds {
get { return new Rectangle (this.Bounds.Right - this.drop_down_button_width, 0, this.drop_down_button_width, this.Bounds.Height); }
}
[Browsable (false)]
public bool DropDownButtonPressed {
get { return this.drop_down_button_selected || (this.HasDropDownItems && this.DropDown.Visible); }
}
[Browsable (false)]
public bool DropDownButtonSelected {
get { return base.Selected; }
}
public int DropDownButtonWidth {
get { return this.drop_down_button_width; }
set {
if (value < 0)
throw new ArgumentOutOfRangeException ();
if (this.drop_down_button_width != value) {
this.drop_down_button_width = value;
CalculateAutoSize ();
}
}
}
[Browsable (false)]
public Rectangle SplitterBounds {
get { return new Rectangle (this.Bounds.Width - this.drop_down_button_width - 1, 0, 1, this.Height); }
}
#endregion
#region Protected Properties
protected override bool DefaultAutoToolTip {
get { return true; }
}
protected internal override bool DismissWhenClicked {
get { return true; }
}
#endregion
#region Public Methods
public override Size GetPreferredSize (Size constrainingSize)
{
// base should calculate the button part for us, add the splitter
// and drop down arrow part to that
Size s = base.GetPreferredSize (constrainingSize);
if (s.Width < 23)
s.Width = 23;
// If we are a fixed size, we can't add more in for the drop down
// button, but we can for autosize
if (AutoSize)
s.Width += (this.drop_down_button_width - 2);
return s;
}
public virtual void OnButtonDoubleClick (EventArgs e)
{
EventHandler eh = (EventHandler)(Events [ButtonDoubleClickEvent]);
if (eh != null)
eh (this, e);
}
public void PerformButtonClick ()
{
if (this.Enabled)
this.OnButtonClick (EventArgs.Empty);
}
[EditorBrowsable (EditorBrowsableState.Never)]
public virtual void ResetDropDownButtonWidth ()
{
this.DropDownButtonWidth = 11;
}
#endregion
#region Protected Methods
protected override AccessibleObject CreateAccessibilityInstance ()
{
return new ToolStripSplitButtonAccessibleObject (this);
}
protected override ToolStripDropDown CreateDefaultDropDown ()
{
ToolStripDropDownMenu tsddm = new ToolStripDropDownMenu ();
tsddm.OwnerItem = this;
return tsddm;
}
protected virtual void OnButtonClick (EventArgs e)
{
EventHandler eh = (EventHandler)Events [ButtonClickEvent];
if (eh != null)
eh (this, e);
}
protected virtual void OnDefaultItemChanged (EventArgs e)
{
EventHandler eh = (EventHandler)Events [DefaultItemChangedEvent];
if (eh != null)
eh (this, e);
}
protected override void OnMouseDown (MouseEventArgs e)
{
if (this.ButtonBounds.Contains (e.Location))
{
this.button_pressed = true;
this.Invalidate ();
base.OnMouseDown (e);
}
else if (this.DropDownButtonBounds.Contains (e.Location))
{
if (this.DropDown.Visible)
this.HideDropDown (ToolStripDropDownCloseReason.ItemClicked);
else
this.ShowDropDown ();
this.Invalidate ();
base.OnMouseDown (e);
}
}
protected override void OnMouseLeave (EventArgs e)
{
this.drop_down_button_selected = false;
this.button_pressed = false;
this.Invalidate ();
base.OnMouseLeave (e);
}
protected override void OnMouseUp (MouseEventArgs e)
{
this.button_pressed = false;
this.Invalidate ();
base.OnMouseUp (e);
}
protected override void OnPaint (PaintEventArgs e)
{
base.OnPaint (e);
if (this.Owner != null) {
Color font_color = this.Enabled ? this.ForeColor : SystemColors.GrayText;
Image draw_image = this.Enabled ? this.Image : ToolStripRenderer.CreateDisabledImage (this.Image);
this.Owner.Renderer.DrawSplitButton (new System.Windows.Forms.ToolStripItemRenderEventArgs (e.Graphics, this));
Rectangle text_layout_rect;
Rectangle image_layout_rect;
Rectangle r = this.ContentRectangle;
r.Width -= (this.drop_down_button_width + 1);
this.CalculateTextAndImageRectangles (r, out text_layout_rect, out image_layout_rect);
if (text_layout_rect != Rectangle.Empty)
this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, font_color, this.Font, this.TextAlign));
if (image_layout_rect != Rectangle.Empty)
this.Owner.Renderer.DrawItemImage (new System.Windows.Forms.ToolStripItemImageRenderEventArgs (e.Graphics, this, draw_image, image_layout_rect));
this.Owner.Renderer.DrawArrow (new ToolStripArrowRenderEventArgs (e.Graphics, this, new Rectangle (this.Width - 9, 1, 6, this.Height), Color.Black, ArrowDirection.Down));
return;
}
}
protected override void OnRightToLeftChanged (EventArgs e)
{
base.OnRightToLeftChanged (e);
}
protected internal override bool ProcessDialogKey (Keys keyData)
{
if (this.Selected && keyData == Keys.Enter && this.DefaultItem != null) {
this.DefaultItem.FireEvent (EventArgs.Empty, ToolStripItemEventType.Click);
return true;
}
return base.ProcessDialogKey (keyData);
}
protected internal override bool ProcessMnemonic (char charCode)
{
if (!this.Selected)
this.Parent.ChangeSelection (this);
if (this.HasDropDownItems)
this.ShowDropDown ();
else
this.PerformClick ();
return true;
}
#endregion
#region Internal Methods
internal override void HandleClick (int mouse_clicks, EventArgs e)
{
base.HandleClick (mouse_clicks, e);
MouseEventArgs mea = e as MouseEventArgs;
if (mea != null)
if (ButtonBounds.Contains (mea.Location))
OnButtonClick (EventArgs.Empty);
}
#endregion
#region Public Events
static object ButtonClickEvent = new object ();
static object ButtonDoubleClickEvent = new object ();
static object DefaultItemChangedEvent = new object ();
public event EventHandler ButtonClick {
add { Events.AddHandler (ButtonClickEvent, value); }
remove {Events.RemoveHandler (ButtonClickEvent, value); }
}
public event EventHandler ButtonDoubleClick {
add { Events.AddHandler (ButtonDoubleClickEvent, value); }
remove {Events.RemoveHandler (ButtonDoubleClickEvent, value); }
}
public event EventHandler DefaultItemChanged {
add { Events.AddHandler (DefaultItemChangedEvent, value); }
remove {Events.RemoveHandler (DefaultItemChangedEvent, value); }
}
#endregion
#region ToolStripSplitButtonAccessibleObject Class
public class ToolStripSplitButtonAccessibleObject : ToolStripItemAccessibleObject
{
#region Public Constructor
public ToolStripSplitButtonAccessibleObject (ToolStripSplitButton item) : base (item)
{
}
#endregion
#region Public Method
public override void DoDefaultAction ()
{
(owner_item as ToolStripSplitButton).PerformButtonClick ();
}
#endregion
}
#endregion
}
}
#endif
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