368 lines
11 KiB
C#
368 lines
11 KiB
C#
//
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// TrackBarRenderer.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 Novell, Inc.
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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.Windows.Forms.VisualStyles;
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namespace System.Windows.Forms
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{
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public sealed class TrackBarRenderer
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{
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#region Private Constructor
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private TrackBarRenderer () { }
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#endregion
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#region Public Static Methods
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public static void DrawBottomPointingThumb(Graphics g, Rectangle bounds, TrackBarThumbState state)
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{
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if (!IsSupported)
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throw new InvalidOperationException ();
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VisualStyleRenderer vsr;
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switch (state) {
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case TrackBarThumbState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbBottom.Disabled);
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break;
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case TrackBarThumbState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbBottom.Hot);
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break;
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case TrackBarThumbState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbBottom.Normal);
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break;
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case TrackBarThumbState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbBottom.Pressed);
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break;
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}
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vsr.DrawBackground (g, bounds);
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}
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public static void DrawHorizontalThumb (Graphics g, Rectangle bounds, TrackBarThumbState state)
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{
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if (!IsSupported)
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throw new InvalidOperationException ();
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VisualStyleRenderer vsr;
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switch (state) {
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case TrackBarThumbState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.Thumb.Disabled);
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break;
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case TrackBarThumbState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.Thumb.Hot);
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break;
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case TrackBarThumbState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.Thumb.Normal);
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break;
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case TrackBarThumbState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.Thumb.Pressed);
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break;
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}
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vsr.DrawBackground (g, bounds);
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}
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public static void DrawHorizontalTicks(Graphics g, Rectangle bounds, int numTicks, EdgeStyle edgeStyle)
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{
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if (!IsSupported)
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throw new InvalidOperationException ();
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if (bounds.Height <= 0 || bounds.Width <= 0 || numTicks <= 0)
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return;
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VisualStyleRenderer vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.Ticks.Normal);
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double x = bounds.Left;
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double delta = (double)(bounds.Width - 2) / (double)(numTicks-1);
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for(int i = 0; i < numTicks; i++)
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{
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vsr.DrawEdge(g, new Rectangle((int)Math.Round(x), bounds.Top, 5, bounds.Height), Edges.Left, edgeStyle, EdgeEffects.None);
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x += delta;
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}
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}
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public static void DrawHorizontalTrack(Graphics g, Rectangle bounds)
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{
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if (!IsSupported)
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throw new InvalidOperationException ();
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VisualStyleRenderer vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.Track.Normal);
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vsr.DrawBackground (g, bounds);
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}
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public static void DrawLeftPointingThumb (Graphics g, Rectangle bounds, TrackBarThumbState state)
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{
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if (!IsSupported)
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throw new InvalidOperationException ();
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VisualStyleRenderer vsr;
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switch (state) {
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case TrackBarThumbState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbLeft.Disabled);
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break;
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case TrackBarThumbState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbLeft.Hot);
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break;
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case TrackBarThumbState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbLeft.Normal);
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break;
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case TrackBarThumbState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbLeft.Pressed);
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break;
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}
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vsr.DrawBackground (g, bounds);
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}
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public static void DrawRightPointingThumb (Graphics g, Rectangle bounds, TrackBarThumbState state)
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{
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if (!IsSupported)
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throw new InvalidOperationException ();
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VisualStyleRenderer vsr;
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switch (state) {
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case TrackBarThumbState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbRight.Disabled);
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break;
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case TrackBarThumbState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbRight.Hot);
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break;
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case TrackBarThumbState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbRight.Normal);
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break;
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case TrackBarThumbState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbRight.Pressed);
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break;
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}
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vsr.DrawBackground (g, bounds);
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}
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public static void DrawTopPointingThumb (Graphics g, Rectangle bounds, TrackBarThumbState state)
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{
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if (!IsSupported)
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throw new InvalidOperationException ();
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VisualStyleRenderer vsr;
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switch (state) {
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case TrackBarThumbState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbTop.Disabled);
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break;
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case TrackBarThumbState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbTop.Hot);
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break;
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case TrackBarThumbState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbTop.Normal);
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break;
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case TrackBarThumbState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbTop.Pressed);
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break;
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}
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vsr.DrawBackground (g, bounds);
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}
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public static void DrawVerticalThumb (Graphics g, Rectangle bounds, TrackBarThumbState state)
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{
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if (!IsSupported)
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throw new InvalidOperationException ();
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VisualStyleRenderer vsr;
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switch (state) {
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case TrackBarThumbState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbVertical.Disabled);
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break;
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case TrackBarThumbState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbVertical.Hot);
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break;
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case TrackBarThumbState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbVertical.Normal);
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break;
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case TrackBarThumbState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbVertical.Pressed);
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break;
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}
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vsr.DrawBackground (g, bounds);
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}
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public static void DrawVerticalTicks (Graphics g, Rectangle bounds, int numTicks, EdgeStyle edgeStyle)
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{
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if (!IsSupported)
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throw new InvalidOperationException ();
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if (bounds.Height <= 0 || bounds.Width <= 0 || numTicks <= 0)
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return;
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VisualStyleRenderer vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.TicksVertical.Normal);
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double y = bounds.Top;
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double delta = (double)(bounds.Height - 2) / (double)(numTicks - 1);
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for (int i = 0; i < numTicks; i++) {
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vsr.DrawEdge (g, new Rectangle (bounds.Left, (int)Math.Round (y), bounds.Width, 5), Edges.Top, edgeStyle, EdgeEffects.None);
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y += delta;
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}
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}
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public static void DrawVerticalTrack (Graphics g, Rectangle bounds)
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{
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if (!IsSupported)
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throw new InvalidOperationException ();
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VisualStyleRenderer vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.Track.Normal);
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vsr.DrawBackground (g, bounds);
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}
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public static Size GetBottomPointingThumbSize(Graphics g, TrackBarThumbState state)
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{
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if (!IsSupported)
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throw new InvalidOperationException ();
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VisualStyleRenderer vsr;
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switch (state) {
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case TrackBarThumbState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbBottom.Disabled);
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break;
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case TrackBarThumbState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbBottom.Hot);
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break;
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case TrackBarThumbState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbBottom.Normal);
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break;
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case TrackBarThumbState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbBottom.Pressed);
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break;
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}
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return vsr.GetPartSize (g, ThemeSizeType.Draw);
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}
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public static Size GetLeftPointingThumbSize (Graphics g, TrackBarThumbState state)
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{
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if (!IsSupported)
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throw new InvalidOperationException ();
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VisualStyleRenderer vsr;
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switch (state) {
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case TrackBarThumbState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbLeft.Disabled);
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break;
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case TrackBarThumbState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbLeft.Hot);
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break;
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case TrackBarThumbState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbLeft.Normal);
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break;
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case TrackBarThumbState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbLeft.Pressed);
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break;
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}
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return vsr.GetPartSize (g, ThemeSizeType.Draw);
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}
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public static Size GetRightPointingThumbSize (Graphics g, TrackBarThumbState state)
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{
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if (!IsSupported)
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throw new InvalidOperationException ();
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VisualStyleRenderer vsr;
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switch (state) {
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case TrackBarThumbState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbRight.Disabled);
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break;
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case TrackBarThumbState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbRight.Hot);
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break;
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case TrackBarThumbState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbRight.Normal);
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break;
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case TrackBarThumbState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbRight.Pressed);
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break;
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}
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return vsr.GetPartSize (g, ThemeSizeType.Draw);
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}
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public static Size GetTopPointingThumbSize (Graphics g, TrackBarThumbState state)
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{
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if (!IsSupported)
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throw new InvalidOperationException ();
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VisualStyleRenderer vsr;
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switch (state) {
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case TrackBarThumbState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbTop.Disabled);
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break;
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case TrackBarThumbState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbTop.Hot);
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break;
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case TrackBarThumbState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbTop.Normal);
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break;
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case TrackBarThumbState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbTop.Pressed);
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break;
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}
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return vsr.GetPartSize (g, ThemeSizeType.Draw);
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}
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#endregion
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#region Public Static Properties
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public static bool IsSupported {
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get { return VisualStyleInformation.IsEnabledByUser && (Application.VisualStyleState == VisualStyleState.ClientAndNonClientAreasEnabled || Application.VisualStyleState == VisualStyleState.ClientAreaEnabled); }
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}
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#endregion
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}
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}
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