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/*
KeePass Password Safe - The Open-Source Password Manager
Copyright (C) 2003-2025 Dominik Reichl <dominik.reichl@t-online.de>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Text;
using System.Windows.Forms;
using KeePassLib.Native;
using KeePassLib.Utility;
namespace KeePass.UI
{
public sealed class ImageComboBoxEx : ComboBox
{
private List<Image> m_vImages = null;
[Browsable(false)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public List<Image> OrderedImageList
{
get { return m_vImages; }
set { m_vImages = value; } // Null allowed
}
public bool ShouldSerializeOrderedImageList() { return false; }
public ImageComboBoxEx() : base()
{
if(Program.DesignMode) return;
if(NativeLib.IsUnix()) return;
Debug.Assert(this.DrawMode == DrawMode.Normal);
this.DrawMode = DrawMode.OwnerDrawVariable;
this.DropDownHeight = GetStdItemHeight(null) * 12 + 2;
this.MaxDropDownItems = 12;
Debug.Assert(!this.Sorted);
}
private int GetStdItemHeight(Graphics g)
{
if(g == null)
return Math.Max(18, TextRenderer.MeasureText("Wg", this.Font).Height);
return Math.Max(18, TextRenderer.MeasureText(g, "Wg", this.Font).Height);
}
protected override void OnMeasureItem(MeasureItemEventArgs e)
{
base.OnMeasureItem(e);
e.ItemHeight = GetStdItemHeight(e.Graphics);
}
protected override void OnDrawItem(DrawItemEventArgs e)
{
Color clrBack = e.BackColor, clrFore = e.ForeColor;
if((e.State & DrawItemState.Selected) != DrawItemState.None)
{
clrBack = SystemColors.Highlight;
clrFore = SystemColors.HighlightText;
}
int nIdx = e.Index;
Rectangle rectClip = e.Bounds;
int dImg = rectClip.Height - 2;
// Don't use RTL property of translation, as the parent (form)
// may explicitly turn off the RTL mode
bool bRtl = (this.RightToLeft == RightToLeft.Yes);
Graphics g = e.Graphics;
using(SolidBrush brBack = new SolidBrush(clrBack))
{
g.FillRectangle(brBack, rectClip);
}
Rectangle rectImg = new Rectangle(bRtl ? (rectClip.Right - dImg - 1) :
(rectClip.Left + 1), rectClip.Top + 1, dImg, dImg);
if((m_vImages != null) && (nIdx >= 0) && (nIdx < m_vImages.Count) &&
(m_vImages[nIdx] != null))
{
GfxUtil.SetHighQuality(g);
g.DrawImage(m_vImages[nIdx], rectImg);
}
Rectangle rectText = new Rectangle(bRtl ? (rectClip.Left + 1) :
(rectClip.Left + dImg + 2 + 1), rectClip.Top + 1,
rectClip.Width - dImg - 5, rectClip.Height - 2);
TextFormatFlags tff = (TextFormatFlags.PreserveGraphicsClipping |
TextFormatFlags.EndEllipsis | TextFormatFlags.NoPrefix |
TextFormatFlags.SingleLine | TextFormatFlags.VerticalCenter);
if(bRtl) tff |= (TextFormatFlags.RightToLeft | TextFormatFlags.Right);
string strText = string.Empty;
if((nIdx >= 0) && (nIdx < this.Items.Count))
strText = ((this.Items[nIdx] as string) ?? string.Empty);
TextRenderer.DrawText(g, strText, e.Font, rectText, clrFore, clrBack, tff);
if(((e.State & DrawItemState.Focus) != DrawItemState.None) &&
((e.State & DrawItemState.NoFocusRect) == DrawItemState.None))
e.DrawFocusRectangle();
}
}
}
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