2013-11-03 23:53:49 +13:00
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#region License Information (GPL v3)
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/*
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ShareX - A program that allows you to take screenshots and share any file type
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2014-01-12 20:25:51 +13:00
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Copyright (C) 2008-2014 ShareX Developers
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2013-11-03 23:53:49 +13:00
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Optionally you can also view the license at <http://www.gnu.org/licenses/>.
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*/
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#endregion License Information (GPL v3)
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using System.ComponentModel;
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using System.Diagnostics;
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2014-04-13 22:43:56 +12:00
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using System.Drawing;
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2013-11-03 23:53:49 +13:00
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using System.Windows.Forms;
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namespace HelpersLib
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{
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public class MyListView : ListView
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{
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private const int WM_PAINT = 0xF;
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private const int WM_ERASEBKGND = 0x14;
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[DefaultValue(false)]
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public bool AutoFillColumn { get; set; }
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[DefaultValue(-1)]
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public int AutoFillColumnIndex { get; set; }
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2014-04-13 22:43:56 +12:00
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[DefaultValue(-1)]
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public int LineBefore { get; set; }
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[DefaultValue(-1)]
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public int LineAfter { get; set; }
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2013-11-03 23:53:49 +13:00
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public MyListView()
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{
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SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint | ControlStyles.EnableNotifyMessage, true);
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2014-04-13 22:43:56 +12:00
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this.ApplyDefaultPropertyValues();
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2013-11-03 23:53:49 +13:00
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FullRowSelect = true;
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View = View.Details;
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}
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public void FillColumn(int index)
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{
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if (View == View.Details && Columns.Count > 0 && index >= -1 && index < Columns.Count)
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{
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if (index == -1)
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{
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index = Columns.Count - 1;
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}
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int width = 0;
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for (int i = 0; i < Columns.Count; i++)
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{
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if (i != index) width += Columns[i].Width;
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}
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int columnWidth = ClientSize.Width - width;
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if (columnWidth > 0 && Columns[index].Width != columnWidth)
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{
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Columns[index].Width = columnWidth;
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}
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}
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}
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public void FillLastColumn()
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{
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FillColumn(-1);
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}
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[DebuggerStepThrough]
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protected override void OnNotifyMessage(Message m)
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{
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if (m.Msg == WM_PAINT && !DesignMode && AutoFillColumn)
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{
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FillColumn(AutoFillColumnIndex);
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}
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if (m.Msg != WM_ERASEBKGND)
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{
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base.OnNotifyMessage(m);
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}
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}
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protected override void OnKeyDown(KeyEventArgs e)
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{
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if (MultiSelect && e.Control && e.KeyCode == Keys.A)
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{
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foreach (ListViewItem lvi in Items)
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{
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lvi.Selected = true;
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}
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}
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base.OnKeyDown(e);
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}
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2014-04-13 22:43:56 +12:00
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protected override void WndProc(ref Message m)
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{
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base.WndProc(ref m);
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if (m.Msg == WM_PAINT)
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{
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if (LineBefore >= 0 && LineBefore < Items.Count)
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{
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Rectangle rc = Items[LineBefore].GetBounds(ItemBoundsPortion.Entire);
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DrawInsertionLine(rc.Left, rc.Right, rc.Top);
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}
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if (LineAfter >= 0 && LineBefore < Items.Count)
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{
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Rectangle rc = Items[LineAfter].GetBounds(ItemBoundsPortion.Entire);
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DrawInsertionLine(rc.Left, rc.Right, rc.Bottom);
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}
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}
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}
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private void DrawInsertionLine(int X1, int X2, int Y)
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{
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using (Graphics g = this.CreateGraphics())
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{
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g.DrawLine(Pens.LightBlue, X1, Y, X2 - 1, Y);
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Point[] leftTriangle = new Point[3] {
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new Point(X1, Y-4),
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new Point(X1 + 7, Y),
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new Point(X1, Y+4)
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};
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Point[] rightTriangle = new Point[3] {
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new Point(X2, Y-4),
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new Point(X2 - 8, Y),
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new Point(X2, Y+4)
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};
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g.FillPolygon(Brushes.LightBlue, leftTriangle);
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g.FillPolygon(Brushes.LightBlue, rightTriangle);
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}
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}
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2013-11-03 23:53:49 +13:00
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}
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}
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