288 lines
9.4 KiB
C#
288 lines
9.4 KiB
C#
//
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// ToolStripLabel.cs
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// Copyright (c) 2006 Jonathan Pobst
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//
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// Authors:
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// Jonathan Pobst (monkey@jpobst.com)
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//
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using System.Drawing;
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using System.ComponentModel;
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using System.Windows.Forms.Design;
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namespace System.Windows.Forms
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{
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[ToolStripItemDesignerAvailability (ToolStripItemDesignerAvailability.ToolStrip)]
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public class ToolStripLabel : ToolStripItem
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{
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private Color active_link_color;
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private bool is_link;
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private LinkBehavior link_behavior;
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private Color link_color;
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private bool link_visited;
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private Color visited_link_color;
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#region UIA FrameWork Events
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static object UIAIsLinkChangedEvent = new object ();
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internal event EventHandler UIAIsLinkChanged {
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add { Events.AddHandler (UIAIsLinkChangedEvent, value); }
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remove { Events.RemoveHandler (UIAIsLinkChangedEvent, value); }
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}
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internal void OnUIAIsLinkChanged (EventArgs e)
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{
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EventHandler eh = (EventHandler) Events [UIAIsLinkChangedEvent];
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if (eh != null)
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eh (this, e);
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}
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#endregion
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#region Public Constructors
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public ToolStripLabel ()
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: this (null, null, false, null, String.Empty)
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{
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}
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public ToolStripLabel (Image image)
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: this (null, image, false, null, String.Empty)
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{
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}
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public ToolStripLabel (string text)
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: this (text, null, false, null, String.Empty)
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{
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}
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public ToolStripLabel (string text, Image image)
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: this (text, image, false, null, String.Empty)
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{
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}
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public ToolStripLabel (string text, Image image, bool isLink)
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: this (text, image, isLink, null, String.Empty)
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{
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}
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public ToolStripLabel (string text, Image image, bool isLink, EventHandler onClick)
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: this (text, image, isLink, onClick, String.Empty)
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{
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}
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public ToolStripLabel (string text, Image image, bool isLink, EventHandler onClick, string name)
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: base (text, image, onClick, name)
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{
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this.active_link_color = Color.Red;
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this.is_link = isLink;
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this.link_behavior = LinkBehavior.SystemDefault;
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this.link_color = Color.FromArgb (0, 0, 255);
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this.link_visited = false;
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this.visited_link_color = Color.FromArgb (128, 0, 128);
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}
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#endregion
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#region Public Properties
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public Color ActiveLinkColor {
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get { return this.active_link_color; }
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set {
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this.active_link_color = value;
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this.Invalidate ();
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}
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}
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public override bool CanSelect { get { return false; } }
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[DefaultValue (false)]
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public bool IsLink {
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get { return this.is_link; }
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set {
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this.is_link = value;
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this.Invalidate ();
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// UIA Framework Event: IsLink Changed
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OnUIAIsLinkChanged (EventArgs.Empty);
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}
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}
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[DefaultValue (LinkBehavior.SystemDefault)]
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public LinkBehavior LinkBehavior {
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get { return this.link_behavior; }
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set {
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this.link_behavior = value;
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this.Invalidate ();
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}
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}
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public Color LinkColor {
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get { return this.link_color; }
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set {
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this.link_color = value;
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this.Invalidate ();
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}
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}
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[DefaultValue (false)]
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public bool LinkVisited {
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get { return this.link_visited; }
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set {
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this.link_visited = value;
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this.Invalidate ();
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}
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}
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public Color VisitedLinkColor
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{
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get { return this.visited_link_color; }
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set {
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this.visited_link_color = value;
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this.Invalidate ();
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}
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}
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#endregion
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#region Protected Methods
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[EditorBrowsable (EditorBrowsableState.Advanced)]
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protected override AccessibleObject CreateAccessibilityInstance ()
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{
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ToolStripItemAccessibleObject ao = new ToolStripItemAccessibleObject (this);
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ao.role = AccessibleRole.StaticText;
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ao.state = AccessibleStates.ReadOnly;
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return ao;
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}
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protected override void OnFontChanged (EventArgs e)
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{
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base.OnFontChanged (e);
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}
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protected override void OnMouseEnter (EventArgs e)
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{
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base.OnMouseEnter (e);
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}
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protected override void OnMouseLeave (EventArgs e)
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{
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base.OnMouseLeave (e);
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}
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protected override void OnPaint (System.Windows.Forms.PaintEventArgs e)
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{
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if (this.Owner != null) {
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Color font_color = this.Enabled ? this.ForeColor : SystemColors.GrayText;
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Image draw_image = this.Enabled ? this.Image : ToolStripRenderer.CreateDisabledImage (this.Image);
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this.Owner.Renderer.DrawLabelBackground (new System.Windows.Forms.ToolStripItemRenderEventArgs (e.Graphics, this));
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Rectangle text_layout_rect;
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Rectangle image_layout_rect;
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this.CalculateTextAndImageRectangles (out text_layout_rect, out image_layout_rect);
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if (this.IsOnDropDown) {
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if (this.ShowMargin)
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text_layout_rect = new Rectangle (35, text_layout_rect.Top, text_layout_rect.Width, text_layout_rect.Height);
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else
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text_layout_rect = new Rectangle (7, text_layout_rect.Top, text_layout_rect.Width, text_layout_rect.Height);
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if (image_layout_rect != Rectangle.Empty)
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image_layout_rect = new Rectangle (new Point (4, 3), base.GetImageSize ());
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}
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if (image_layout_rect != Rectangle.Empty)
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this.Owner.Renderer.DrawItemImage (new System.Windows.Forms.ToolStripItemImageRenderEventArgs (e.Graphics, this, draw_image, image_layout_rect));
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if (text_layout_rect != Rectangle.Empty)
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if (this.is_link) {
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if (this.Pressed) // Mouse Down
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{
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switch (this.link_behavior) {
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case LinkBehavior.SystemDefault:
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case LinkBehavior.AlwaysUnderline:
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case LinkBehavior.HoverUnderline:
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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));
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break;
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case LinkBehavior.NeverUnderline:
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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));
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break;
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}
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}
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else if (this.Selected) // Hover
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{
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switch (this.link_behavior) {
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case LinkBehavior.SystemDefault:
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case LinkBehavior.AlwaysUnderline:
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case LinkBehavior.HoverUnderline:
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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));
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break;
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case LinkBehavior.NeverUnderline:
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this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.link_color, this.Font, this.TextAlign));
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break;
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}
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}
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else {
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if (this.link_visited) // Normal, Visited
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{
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switch (this.link_behavior) {
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case LinkBehavior.SystemDefault:
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case LinkBehavior.AlwaysUnderline:
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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));
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break;
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case LinkBehavior.NeverUnderline:
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case LinkBehavior.HoverUnderline:
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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));
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break;
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}
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}
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else // Normal
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{
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switch (this.link_behavior) {
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case LinkBehavior.SystemDefault:
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case LinkBehavior.AlwaysUnderline:
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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));
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break;
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case LinkBehavior.NeverUnderline:
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case LinkBehavior.HoverUnderline:
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this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.link_color, this.Font, this.TextAlign));
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break;
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}
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}
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}
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} else
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this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, font_color, this.Font, this.TextAlign));
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}
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// call Paint handlers last.
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base.OnPaint (e);
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}
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protected internal override bool ProcessMnemonic (char charCode)
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{
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this.Parent.SelectNextToolStripItem (this, true);
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return true;
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}
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#endregion
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}
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}
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