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