mirror of
https://github.com/xcp-ng/xenadmin.git
synced 2024-12-30 15:50:10 +01:00
d81538d43d
a autowrap-on-resize radiobutton. Also, removed badly aligned label and appended its text to the radiobutton text. Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
101 lines
4.0 KiB
C#
101 lines
4.0 KiB
C#
/* Copyright (c) Citrix Systems Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms,
|
|
* with or without modification, are permitted provided
|
|
* that the following conditions are met:
|
|
*
|
|
* * Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the
|
|
* following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the
|
|
* following disclaimer in the documentation and/or other
|
|
* materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
|
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
|
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Drawing;
|
|
using System.Windows.Forms;
|
|
|
|
namespace XenAdmin.Controls.Common
|
|
{
|
|
/// <summary>
|
|
/// A RadioButton which automatically changes its height to accomodate its
|
|
/// text when in AutoSize mode. This is useful as it enables a multi-line
|
|
/// RadioButton to be put in a TableLayoutPanel. The table can then be made
|
|
/// to vertically shrink/grow depending on the label text.
|
|
/// Code based on http://blogs.msdn.com/b/jfoscoding/archive/2005/11/14/492554.aspx
|
|
/// </summary>
|
|
public class AutoHeightRadioButton : RadioButton
|
|
{
|
|
Size cachedSizeOfOneLineOfText = Size.Empty;
|
|
Dictionary<Size, Size> preferredSizeHash = new Dictionary<Size, Size>();
|
|
|
|
private void CacheTextSize()
|
|
{
|
|
preferredSizeHash.Clear();
|
|
|
|
cachedSizeOfOneLineOfText = string.IsNullOrEmpty(Text)
|
|
? Size.Empty
|
|
: TextRenderer.MeasureText(Text, Font, new Size(Int32.MaxValue, Int32.MaxValue), TextFormatFlags.WordBreak);
|
|
}
|
|
|
|
protected override void OnTextChanged(EventArgs e)
|
|
{
|
|
base.OnTextChanged(e);
|
|
CacheTextSize();
|
|
//this seems to be necessary in non-EN environments so it can resize correctly
|
|
PerformLayout();
|
|
}
|
|
|
|
protected override void OnFontChanged(EventArgs e)
|
|
{
|
|
base.OnFontChanged(e);
|
|
CacheTextSize();
|
|
//this seems to be necessary in non-EN environments so it can resize correctly
|
|
PerformLayout();
|
|
}
|
|
|
|
public override Size GetPreferredSize(Size proposedSize)
|
|
{
|
|
Size prefSize = base.GetPreferredSize(proposedSize);
|
|
|
|
if (prefSize.Width > proposedSize.Width &&
|
|
!string.IsNullOrEmpty(Text) &&
|
|
(!proposedSize.Width.Equals(Int32.MaxValue) || !proposedSize.Height.Equals(Int32.MaxValue)))
|
|
{
|
|
Size bordersAndPadding = prefSize - cachedSizeOfOneLineOfText;
|
|
Size newConstraints = proposedSize - bordersAndPadding;
|
|
|
|
if (preferredSizeHash.ContainsKey(newConstraints))
|
|
{
|
|
prefSize = preferredSizeHash[newConstraints];
|
|
}
|
|
else
|
|
{
|
|
prefSize = bordersAndPadding + TextRenderer.MeasureText(Text, Font, newConstraints, TextFormatFlags.WordBreak);
|
|
preferredSizeHash[newConstraints] = prefSize;
|
|
}
|
|
}
|
|
return prefSize;
|
|
}
|
|
}
|
|
}
|