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//
// ToolStripLabel.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)
//
using System.Drawing;
using System.ComponentModel;
using System.Windows.Forms.Design;
namespace System.Windows.Forms
{
[ToolStripItemDesignerAvailability (ToolStripItemDesignerAvailability.ToolStrip)]
public class ToolStripLabel : ToolStripItem
{
private Color active_link_color;
private bool is_link;
private LinkBehavior link_behavior;
private Color link_color;
private bool link_visited;
private Color visited_link_color;
#region UIA FrameWork Events
static object UIAIsLinkChangedEvent = new object ();
internal event EventHandler UIAIsLinkChanged {
add { Events.AddHandler (UIAIsLinkChangedEvent, value); }
remove { Events.RemoveHandler (UIAIsLinkChangedEvent, value); }
}
internal void OnUIAIsLinkChanged (EventArgs e)
{
EventHandler eh = (EventHandler) Events [UIAIsLinkChangedEvent];
if (eh != null)
eh (this, e);
}
#endregion
#region Public Constructors
public ToolStripLabel ()
: this (null, null, false, null, String.Empty)
{
}
public ToolStripLabel (Image image)
: this (null, image, false, null, String.Empty)
{
}
public ToolStripLabel (string text)
: this (text, null, false, null, String.Empty)
{
}
public ToolStripLabel (string text, Image image)
: this (text, image, false, null, String.Empty)
{
}
public ToolStripLabel (string text, Image image, bool isLink)
: this (text, image, isLink, null, String.Empty)
{
}
public ToolStripLabel (string text, Image image, bool isLink, EventHandler onClick)
: this (text, image, isLink, onClick, String.Empty)
{
}
public ToolStripLabel (string text, Image image, bool isLink, EventHandler onClick, string name)
: base (text, image, onClick, name)
{
this.active_link_color = Color.Red;
this.is_link = isLink;
this.link_behavior = LinkBehavior.SystemDefault;
this.link_color = Color.FromArgb (0, 0, 255);
this.link_visited = false;
this.visited_link_color = Color.FromArgb (128, 0, 128);
}
#endregion
#region Public Properties
public Color ActiveLinkColor {
get { return this.active_link_color; }
set {
this.active_link_color = value;
this.Invalidate ();
}
}
public override bool CanSelect { get { return false; } }
[DefaultValue (false)]
public bool IsLink {
get { return this.is_link; }
set {
this.is_link = value;
this.Invalidate ();
// UIA Framework Event: IsLink Changed
OnUIAIsLinkChanged (EventArgs.Empty);
}
}
[DefaultValue (LinkBehavior.SystemDefault)]
public LinkBehavior LinkBehavior {
get { return this.link_behavior; }
set {
this.link_behavior = value;
this.Invalidate ();
}
}
public Color LinkColor {
get { return this.link_color; }
set {
this.link_color = value;
this.Invalidate ();
}
}
[DefaultValue (false)]
public bool LinkVisited {
get { return this.link_visited; }
set {
this.link_visited = value;
this.Invalidate ();
}
}
public Color VisitedLinkColor
{
get { return this.visited_link_color; }
set {
this.visited_link_color = value;
this.Invalidate ();
}
}
#endregion
#region Protected Methods
[EditorBrowsable (EditorBrowsableState.Advanced)]
protected override AccessibleObject CreateAccessibilityInstance ()
{
ToolStripItemAccessibleObject ao = new ToolStripItemAccessibleObject (this);
ao.role = AccessibleRole.StaticText;
ao.state = AccessibleStates.ReadOnly;
return ao;
}
protected override void OnFontChanged (EventArgs e)
{
base.OnFontChanged (e);
}
protected override void OnMouseEnter (EventArgs e)
{
base.OnMouseEnter (e);
}
protected override void OnMouseLeave (EventArgs e)
{
base.OnMouseLeave (e);
}
protected override void OnPaint (System.Windows.Forms.PaintEventArgs 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.DrawLabelBackground (new System.Windows.Forms.ToolStripItemRenderEventArgs (e.Graphics, this));
Rectangle text_layout_rect;
Rectangle image_layout_rect;
this.CalculateTextAndImageRectangles (out text_layout_rect, out image_layout_rect);
if (this.IsOnDropDown) {
if (this.ShowMargin)
text_layout_rect = new Rectangle (35, text_layout_rect.Top, text_layout_rect.Width, text_layout_rect.Height);
else
text_layout_rect = new Rectangle (7, text_layout_rect.Top, text_layout_rect.Width, text_layout_rect.Height);
if (image_layout_rect != Rectangle.Empty)
image_layout_rect = new Rectangle (new Point (4, 3), base.GetImageSize ());
}
if (image_layout_rect != Rectangle.Empty)
this.Owner.Renderer.DrawItemImage (new System.Windows.Forms.ToolStripItemImageRenderEventArgs (e.Graphics, this, draw_image, image_layout_rect));
if (text_layout_rect != Rectangle.Empty)
if (this.is_link) {
if (this.Pressed) // Mouse Down
{
switch (this.link_behavior) {
case LinkBehavior.SystemDefault:
case LinkBehavior.AlwaysUnderline:
case LinkBehavior.HoverUnderline:
this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.active_link_color, new Font (this.Font, FontStyle.Underline), this.TextAlign));
break;
case LinkBehavior.NeverUnderline:
this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.active_link_color, this.Font, this.TextAlign));
break;
}
}
else if (this.Selected) // Hover
{
switch (this.link_behavior) {
case LinkBehavior.SystemDefault:
case LinkBehavior.AlwaysUnderline:
case LinkBehavior.HoverUnderline:
this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.link_color, new Font (this.Font, FontStyle.Underline), this.TextAlign));
break;
case LinkBehavior.NeverUnderline:
this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.link_color, this.Font, this.TextAlign));
break;
}
}
else {
if (this.link_visited) // Normal, Visited
{
switch (this.link_behavior) {
case LinkBehavior.SystemDefault:
case LinkBehavior.AlwaysUnderline:
this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.visited_link_color, new Font (this.Font, FontStyle.Underline), this.TextAlign));
break;
case LinkBehavior.NeverUnderline:
case LinkBehavior.HoverUnderline:
this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.visited_link_color, this.Font, this.TextAlign));
break;
}
}
else // Normal
{
switch (this.link_behavior) {
case LinkBehavior.SystemDefault:
case LinkBehavior.AlwaysUnderline:
this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.link_color, new Font (this.Font, FontStyle.Underline), this.TextAlign));
break;
case LinkBehavior.NeverUnderline:
case LinkBehavior.HoverUnderline:
this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.link_color, this.Font, this.TextAlign));
break;
}
}
}
} else
this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, font_color, this.Font, this.TextAlign));
}
// call Paint handlers last.
base.OnPaint (e);
}
protected internal override bool ProcessMnemonic (char charCode)
{
this.Parent.SelectNextToolStripItem (this, true);
return true;
}
#endregion
}
}
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