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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt VS Tools.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
using System.Drawing;
using System.Windows.Forms;
namespace QtProjectLib
{
public class ImageButton : Button
{
private readonly Image img;
private readonly Image dimg;
// support for disabled image
public ImageButton(Image image, Image dimage)
{
img = image;
dimg = dimage;
}
public sealed override Color BackColor
{
get { return SystemColors.Control; }
}
protected override void OnPaint(PaintEventArgs pevent)
{
base.OnPaint(pevent);
var xoffset = (Size.Width - img.Width) / 2;
var yoffset = (Size.Height - img.Height) / 2;
var imgWidth = img.Width;
var imgHeight = img.Height;
// make it smaller if necessary
if (xoffset < 0)
imgWidth = Size.Width;
if (yoffset < 0)
imgHeight = Size.Height;
if ((dimg != null) && (!Enabled)) {
pevent.Graphics.DrawImage(dimg, xoffset, yoffset,
imgWidth, imgHeight);
} else if (img != null) {
pevent.Graphics.DrawImage(img, xoffset, yoffset,
imgWidth, imgHeight);
}
}
}
}
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