327 lines
11 KiB
C#
327 lines
11 KiB
C#
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//
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// ScrollBarRenderer.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 ScrollBarRenderer
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{
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#region Private Constructor
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private ScrollBarRenderer () { }
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#endregion
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#region Public Static Methods
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public static void DrawArrowButton (Graphics g, Rectangle bounds, ScrollBarArrowButtonState 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 ScrollBarArrowButtonState.DownDisabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.DownDisabled);
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break;
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case ScrollBarArrowButtonState.DownHot:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.DownHot);
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break;
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case ScrollBarArrowButtonState.DownNormal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.DownNormal);
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break;
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case ScrollBarArrowButtonState.DownPressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.DownPressed);
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break;
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case ScrollBarArrowButtonState.LeftDisabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.LeftDisabled);
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break;
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case ScrollBarArrowButtonState.LeftHot:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.LeftHot);
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break;
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case ScrollBarArrowButtonState.LeftNormal:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.LeftNormal);
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break;
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case ScrollBarArrowButtonState.LeftPressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.LeftPressed);
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break;
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case ScrollBarArrowButtonState.RightDisabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.RightDisabled);
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break;
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case ScrollBarArrowButtonState.RightHot:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.RightHot);
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break;
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case ScrollBarArrowButtonState.RightNormal:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.RightNormal);
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break;
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case ScrollBarArrowButtonState.RightPressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.RightPressed);
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break;
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case ScrollBarArrowButtonState.UpDisabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.UpDisabled);
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break;
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case ScrollBarArrowButtonState.UpHot:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.UpHot);
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break;
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case ScrollBarArrowButtonState.UpNormal:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.UpNormal);
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break;
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case ScrollBarArrowButtonState.UpPressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.UpPressed);
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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, ScrollBarState 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 ScrollBarState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonHorizontal.Disabled);
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break;
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case ScrollBarState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonHorizontal.Hot);
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break;
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case ScrollBarState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonHorizontal.Normal);
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break;
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case ScrollBarState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonHorizontal.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 DrawHorizontalThumbGrip (Graphics g, Rectangle bounds, ScrollBarState state)
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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.ScrollBar.GripperHorizontal.Normal);
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vsr.DrawBackground (g, bounds);
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}
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public static void DrawLeftHorizontalTrack (Graphics g, Rectangle bounds, ScrollBarState 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 ScrollBarState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LeftTrackHorizontal.Disabled);
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break;
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case ScrollBarState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LeftTrackHorizontal.Hot);
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break;
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case ScrollBarState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LeftTrackHorizontal.Normal);
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break;
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case ScrollBarState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LeftTrackHorizontal.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 DrawLowerVerticalTrack (Graphics g, Rectangle bounds, ScrollBarState 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 ScrollBarState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LowerTrackVertical.Disabled);
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break;
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case ScrollBarState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LowerTrackVertical.Hot);
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break;
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case ScrollBarState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LowerTrackVertical.Normal);
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break;
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case ScrollBarState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LowerTrackVertical.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 DrawRightHorizontalTrack (Graphics g, Rectangle bounds, ScrollBarState 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 ScrollBarState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.RightTrackHorizontal.Disabled);
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break;
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case ScrollBarState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.RightTrackHorizontal.Hot);
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break;
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case ScrollBarState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.RightTrackHorizontal.Normal);
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break;
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case ScrollBarState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.RightTrackHorizontal.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 DrawSizeBox (Graphics g, Rectangle bounds, ScrollBarSizeBoxState 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 ScrollBarSizeBoxState.LeftAlign:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.SizeBox.LeftAlign);
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break;
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case ScrollBarSizeBoxState.RightAlign:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.SizeBox.RightAlign);
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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 DrawUpperVerticalTrack (Graphics g, Rectangle bounds, ScrollBarState 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 ScrollBarState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.UpperTrackVertical.Disabled);
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break;
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case ScrollBarState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.UpperTrackVertical.Hot);
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break;
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case ScrollBarState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.UpperTrackVertical.Normal);
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break;
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case ScrollBarState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.UpperTrackVertical.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, ScrollBarState 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 ScrollBarState.Disabled:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonVertical.Disabled);
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break;
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case ScrollBarState.Hot:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonVertical.Hot);
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break;
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case ScrollBarState.Normal:
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default:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonVertical.Normal);
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break;
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case ScrollBarState.Pressed:
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vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonVertical.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 DrawVerticalThumbGrip (Graphics g, Rectangle bounds, ScrollBarState state)
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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.ScrollBar.GripperVertical.Normal); ;
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vsr.DrawBackground (g, bounds);
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}
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public static Size GetSizeBoxSize (Graphics g, ScrollBarState state)
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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.ScrollBar.SizeBox.LeftAlign);
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return vsr.GetPartSize(g, ThemeSizeType.Draw);
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}
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public static Size GetThumbGripSize (Graphics g, ScrollBarState state)
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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.ScrollBar.GripperVertical.Normal);
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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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