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//
// ButtonRenderer.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 Novell, Inc.
//
// Authors:
// Jonathan Pobst (monkey@jpobst.com)
//
using System.Drawing;
using System.Windows.Forms.VisualStyles;
namespace System.Windows.Forms
{
public sealed class ButtonRenderer
{
private static bool always_use_visual_styles = false;
#region Private Constructor
private ButtonRenderer () { }
#endregion
#region Public Static Methods
public static void DrawButton (Graphics g, Rectangle bounds, PushButtonState state)
{
DrawButton (g, bounds, String.Empty, null, TextFormatFlags.Default, null, Rectangle.Empty, false, state);
}
public static void DrawButton (Graphics g, Rectangle bounds, bool focused, PushButtonState state)
{
DrawButton (g, bounds, String.Empty, null, TextFormatFlags.Default, null, Rectangle.Empty, focused, state);
}
public static void DrawButton (Graphics g, Rectangle bounds, Image image, Rectangle imageBounds, bool focused, PushButtonState state)
{
DrawButton (g, bounds, String.Empty, null, TextFormatFlags.Default, image, imageBounds, focused, state);
}
public static void DrawButton (Graphics g, Rectangle bounds, string buttonText, Font font, bool focused, PushButtonState state)
{
DrawButton (g, bounds, buttonText, font, TextFormatFlags.HorizontalCenter, null, Rectangle.Empty, focused, state);
}
public static void DrawButton (Graphics g, Rectangle bounds, string buttonText, Font font, TextFormatFlags flags, bool focused, PushButtonState state)
{
DrawButton (g, bounds, buttonText, font, flags, null, Rectangle.Empty, focused, state);
}
public static void DrawButton (Graphics g, Rectangle bounds, string buttonText, Font font, Image image, Rectangle imageBounds, bool focused, PushButtonState state)
{
DrawButton (g, bounds, buttonText, font, TextFormatFlags.HorizontalCenter, image, imageBounds, focused, state);
}
public static void DrawButton (Graphics g, Rectangle bounds, string buttonText, Font font, TextFormatFlags flags, Image image, Rectangle imageBounds, bool focused, PushButtonState state)
{
if (Application.RenderWithVisualStyles || always_use_visual_styles == true) {
VisualStyleRenderer vsr = GetPushButtonRenderer (state);
vsr.DrawBackground (g, bounds);
if (image != null)
vsr.DrawImage (g, imageBounds, image);
} else {
if (state == PushButtonState.Pressed)
ControlPaint.DrawButton (g, bounds, ButtonState.Pushed);
else
ControlPaint.DrawButton (g, bounds, ButtonState.Normal);
if (image != null)
g.DrawImage (image, imageBounds);
}
Rectangle focus_rect = bounds;
focus_rect.Inflate (-3, -3);
if (focused)
ControlPaint.DrawFocusRectangle (g, focus_rect);
if (buttonText != String.Empty)
if (state == PushButtonState.Disabled)
TextRenderer.DrawText (g, buttonText, font, focus_rect, SystemColors.GrayText, flags);
else
TextRenderer.DrawText (g, buttonText, font, focus_rect, SystemColors.ControlText, flags);
}
public static bool IsBackgroundPartiallyTransparent (PushButtonState state)
{
if (!VisualStyleRenderer.IsSupported)
return false;
VisualStyleRenderer vsr = GetPushButtonRenderer (state);
return vsr.IsBackgroundPartiallyTransparent ();
}
public static void DrawParentBackground (Graphics g, Rectangle bounds, Control childControl)
{
if (!VisualStyleRenderer.IsSupported)
return;
VisualStyleRenderer vsr = new VisualStyleRenderer (VisualStyleElement.Button.PushButton.Default);
vsr.DrawParentBackground (g, bounds, childControl);
}
#endregion
#region Private Static Methods
internal static VisualStyleRenderer GetPushButtonRenderer (PushButtonState state)
{
switch (state) {
case PushButtonState.Normal:
return new VisualStyleRenderer (VisualStyleElement.Button.PushButton.Normal);
case PushButtonState.Hot:
return new VisualStyleRenderer (VisualStyleElement.Button.PushButton.Hot);
case PushButtonState.Pressed:
return new VisualStyleRenderer (VisualStyleElement.Button.PushButton.Pressed);
case PushButtonState.Disabled:
return new VisualStyleRenderer (VisualStyleElement.Button.PushButton.Disabled);
case PushButtonState.Default:
default:
return new VisualStyleRenderer (VisualStyleElement.Button.PushButton.Default);
}
}
#endregion
#region Public Static Properties
public static bool RenderMatchingApplicationState {
get { return !always_use_visual_styles; }
set { always_use_visual_styles = !value; }
}
#endregion
}
}
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