From 6b7b965d82896a0454812603ec89bf76963e8157 Mon Sep 17 00:00:00 2001
From: Markus Palme <MarkusPalme@gmx.de>
Date: Sat, 28 Oct 2006 16:04:32 +0000
Subject: [PATCH] added spinner control to widgets library
git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@1987 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61
---
.../ICSharpCode.SharpDevelop.Widgets.csproj | 1 +
.../Project/SpinnerControl.cs | 92 +++++++++++++++++++
2 files changed, 93 insertions(+)
create mode 100644 src/Main/ICSharpCode.SharpDevelop.Widgets/Project/SpinnerControl.cs
diff --git a/src/Main/ICSharpCode.SharpDevelop.Widgets/Project/ICSharpCode.SharpDevelop.Widgets.csproj b/src/Main/ICSharpCode.SharpDevelop.Widgets/Project/ICSharpCode.SharpDevelop.Widgets.csproj
index ba21d34502..5247a67087 100644
--- a/src/Main/ICSharpCode.SharpDevelop.Widgets/Project/ICSharpCode.SharpDevelop.Widgets.csproj
+++ b/src/Main/ICSharpCode.SharpDevelop.Widgets/Project/ICSharpCode.SharpDevelop.Widgets.csproj
@@ -63,6 +63,7 @@
<Compile Include="SideBar\SideBar.cs" />
<Compile Include="SideBar\SideTab.cs" />
<Compile Include="SideBar\SideTabItem.cs" />
+ <Compile Include="SpinnerControl.cs" />
</ItemGroup>
<ItemGroup>
<Folder Include="Configuration" />
diff --git a/src/Main/ICSharpCode.SharpDevelop.Widgets/Project/SpinnerControl.cs b/src/Main/ICSharpCode.SharpDevelop.Widgets/Project/SpinnerControl.cs
new file mode 100644
index 0000000000..3ac0b993dd
--- /dev/null
+++ b/src/Main/ICSharpCode.SharpDevelop.Widgets/Project/SpinnerControl.cs
@@ -0,0 +1,92 @@
+using System;
+using System.Windows.Forms;
+using System.Drawing;
+
+namespace ICSharpCode.SharpDevelop.Widgets
+{
+ public class SpinnerControl : UserControl
+ {
+ private int lines = 8;
+ private int current = 0;
+ private Timer timer;
+
+ public SpinnerControl()
+ {
+ SetStyle(ControlStyles.UserPaint, true);
+ SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
+ SetStyle(ControlStyles.AllPaintingInWmPaint, true);
+ }
+
+ public int Lines
+ {
+ get
+ {
+ return lines;
+ }
+ set
+ {
+ this.lines = value;
+ }
+ }
+
+ public void Start()
+ {
+ timer = new Timer();
+ timer.Interval = 100;
+ timer.Tick += new EventHandler(timer_Tick);
+ timer.Start();
+ }
+
+ void timer_Tick(object sender, EventArgs e)
+ {
+ if (this.current >= this.lines - 1)
+ {
+ this.current = 0;
+ }
+ else
+ {
+ this.current++;
+ }
+ Invalidate();
+ }
+
+ public void Stop ()
+ {
+ timer.Stop();
+ }
+
+ protected override void OnPaint(PaintEventArgs e)
+ {
+ double x, y;
+ double radius;
+ double half;
+ int i;
+
+ x = Width / 2;
+ y = Height / 2;
+ radius = Math.Min(Width / 2, Height / 2) - 5;
+ half = lines / 2;
+
+ for (i = 0; i < lines; i++)
+ {
+ double inset = 0.7 * radius;
+ double t = (double)((i + lines - current) % lines) / lines;
+
+ Color c = Color.FromArgb((int)(t * 255), 0, 0, 0);
+ Pen pen = new Pen(c);
+ pen.Width = 2;
+
+ PointF start = new PointF((float)(x + (radius - inset) * Math.Cos(i * Math.PI / half)),
+ (float)(y + (radius - inset) * Math.Sin(i * Math.PI / half)));
+
+ PointF end = new PointF((float)(x + radius * Math.Cos(i * Math.PI / half)),
+ (float)(y + radius * Math.Sin(i * Math.PI / half)));
+
+ e.Graphics.DrawLine(pen, start, end);
+ pen.Dispose();
+ }
+
+ base.OnPaint(e);
+ }
+ }
+}