138 lines
3.2 KiB
C#
138 lines
3.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace Mesen.GUI.Controls
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{
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class MyListView : ListView
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{
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private bool _preventCheck = false;
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public MyListView()
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{
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this.DoubleBuffered = true;
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}
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protected override void OnItemCheck(ItemCheckEventArgs e)
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{
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if(this._preventCheck || Control.ModifierKeys.HasFlag(Keys.Control) || Control.ModifierKeys.HasFlag(Keys.Shift)) {
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e.NewValue = e.CurrentValue;
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this._preventCheck = false;
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} else {
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base.OnItemCheck(e);
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}
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}
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protected override void OnMouseDown(MouseEventArgs e)
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{
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if(e.Button == MouseButtons.Left && e.Clicks > 1) {
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this._preventCheck = true;
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} else {
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this._preventCheck = false;
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}
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base.OnMouseDown(e);
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}
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protected override void OnKeyDown(KeyEventArgs e)
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{
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this._preventCheck = false;
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base.OnKeyDown(e);
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}
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}
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class WatchList : MyListView
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{
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private int _editItemIndex = -1;
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private string _originalText = null;
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private bool _pressedEsc = false;
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public event LabelEditEventHandler AfterEdit;
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public WatchList()
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{
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this.DoubleBuffered = true;
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}
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public bool IsEditing
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{
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get { return _editItemIndex >= 0; }
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}
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protected override void OnBeforeLabelEdit(LabelEditEventArgs e)
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{
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if(_originalText == null) {
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_originalText = this.Items[e.Item].Text;
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}
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_editItemIndex = e.Item;
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base.OnBeforeLabelEdit(e);
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}
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protected override void OnAfterLabelEdit(LabelEditEventArgs e)
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{
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base.OnAfterLabelEdit(e);
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if(e.Label != null) {
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string text = e.Label;
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var item = this.Items[e.Item];
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AfterEdit?.Invoke(this, new LabelEditEventArgs(item.Index, text));
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} else if(_pressedEsc) {
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var originalItem = this.Items[e.Item];
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var newItem = new ListViewItem(_originalText);
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newItem.SubItems.Add(originalItem.SubItems[1].Text);
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this.Items.RemoveAt(e.Item);
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this.Items.Insert(e.Item, newItem);
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this.FocusedItem = newItem;
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foreach(ListViewItem item in this.Items) {
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item.Selected = false;
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}
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newItem.Selected = true;
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_pressedEsc = false;
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}
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_originalText = null;
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_editItemIndex = -1;
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}
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protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
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{
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if(this.IsEditing && keyData == Keys.Escape) {
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_pressedEsc = true;
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}
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if(!this.IsEditing || keyData != Keys.Delete) {
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return base.ProcessCmdKey(ref msg, keyData);
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}
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return false;
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}
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protected override void OnKeyPress(KeyPressEventArgs e)
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{
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if(this.LabelEdit && !this.IsEditing && this.SelectedItems.Count > 0) {
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if(e.KeyChar >= 32 && e.KeyChar <= 127) {
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_originalText = this.SelectedItems[0].Text;
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this.SelectedItems[0].Text = e.KeyChar.ToString();
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this.SelectedItems[0].BeginEdit();
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SendKeys.Send("{RIGHT}");
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}
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}
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base.OnKeyPress(e);
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}
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}
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public class DoubleBufferedListView : ListView
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{
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public DoubleBufferedListView()
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{
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this.DoubleBuffered = true;
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}
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protected override void OnVirtualItemsSelectionRangeChanged(ListViewVirtualItemsSelectionRangeChangedEventArgs e)
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{
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base.OnVirtualItemsSelectionRangeChanged(e);
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base.OnSelectedIndexChanged(e);
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}
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}
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}
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