// COPYRIGHT (C) Tom. ALL RIGHTS RESERVED.
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// THE AntdUI PROJECT IS AN WINFORM LIBRARY LICENSED UNDER THE Apache-2.0 License.
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// LICENSED UNDER THE Apache License, VERSION 2.0 (THE "License")
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// YOU MAY NOT USE THIS FILE EXCEPT IN COMPLIANCE WITH THE License.
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// YOU MAY OBTAIN A COPY OF THE LICENSE AT
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING, SOFTWARE
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// DISTRIBUTED UNDER THE LICENSE IS DISTRIBUTED ON AN "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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// SEE THE LICENSE FOR THE SPECIFIC LANGUAGE GOVERNING PERMISSIONS AND
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// LIMITATIONS UNDER THE License.
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// GITEE: https://gitee.com/antdui/AntdUI
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// GITHUB: https://github.com/AntdUI/AntdUI
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// CSDN: https://blog.csdn.net/v_132
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// QQ: 17379620
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using System;
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using System.Collections.Generic;
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using System.Windows.Forms;
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namespace AntdUI
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{
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partial class Input
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{
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public bool IProcessCmdKey(ref System.Windows.Forms.Message msg, Keys keyData)
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{
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return ProcessCmdKey(ref msg, keyData);
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}
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protected override bool ProcessCmdKey(ref System.Windows.Forms.Message msg, Keys keyData)
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{
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switch (keyData)
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{
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case Keys.Back:
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ProcessBackSpaceKey();
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return true;
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case Keys.Delete:
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ProcessDelete();
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return true;
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//========================================================
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case Keys.Left:
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ProcessLeftKey(false);
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return true;
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case Keys.Left | Keys.Shift:
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ProcessLeftKey(true);
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return true;
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case Keys.Up:
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if (multiline) ProcessUpKey(false);
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else ProcessLeftKey(false);
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return true;
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case Keys.Up | Keys.Shift:
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if (multiline) ProcessUpKey(true);
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else ProcessLeftKey(false);
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return true;
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case Keys.Right:
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ProcessRightKey(false);
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return true;
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case Keys.Right | Keys.Shift:
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ProcessRightKey(true);
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return true;
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case Keys.Down:
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if (multiline) ProcessDownKey(false);
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else ProcessRightKey(false);
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return true;
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case Keys.Down | Keys.Shift:
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if (multiline) ProcessDownKey(true);
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else ProcessRightKey(false);
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return true;
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case Keys.Home:
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SpeedScrollTo = true;
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ProcessHomeKey(false, false);
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SpeedScrollTo = false;
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return true;
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case Keys.End:
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SpeedScrollTo = true;
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ProcessEndKey(false, false);
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SpeedScrollTo = false;
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return true;
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case Keys.Control | Keys.Home:
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SpeedScrollTo = true;
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ProcessHomeKey(true, false);
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SpeedScrollTo = false;
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return true;
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case Keys.Control | Keys.End:
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SpeedScrollTo = true;
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ProcessEndKey(true, false);
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SpeedScrollTo = false;
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return true;
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case Keys.Shift | Keys.Home:
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SpeedScrollTo = true;
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ProcessHomeKey(false, true);
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SpeedScrollTo = false;
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return true;
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case Keys.Shift | Keys.End:
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SpeedScrollTo = true;
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ProcessEndKey(false, true);
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SpeedScrollTo = false;
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return true;
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case Keys.Control | Keys.Shift | Keys.Home:
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SpeedScrollTo = true;
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ProcessHomeKey(true, true);
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SpeedScrollTo = false;
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return true;
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case Keys.Control | Keys.Shift | Keys.End:
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SpeedScrollTo = true;
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ProcessEndKey(true, true);
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SpeedScrollTo = false;
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return true;
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//========================================================
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case Keys.Tab:
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if (multiline && AcceptsTab)
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{
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EnterText("\t");
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return true;
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}
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break;
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case Keys.Enter:
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if (multiline)
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{
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EnterText(Environment.NewLine);
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return true;
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}
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break;
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//========================================================
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case Keys.Control | Keys.A:
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SelectAll();
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return true;
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case Keys.Control | Keys.C:
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Copy();
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return true;
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case Keys.Control | Keys.X:
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Cut();
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return true;
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case Keys.Control | Keys.V:
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Paste();
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return true;
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case Keys.Control | Keys.Z:
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Undo();
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return true;
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case Keys.Control | Keys.Y:
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Redo();
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return true;
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case Keys.PageUp:
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if (ScrollYShow && cache_font != null)
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{
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SpeedScrollTo = true;
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SelectionLength = 0;
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var index = GetCaretPostion(CurrentCaret.X, CurrentCaret.Y - (rect_text.Height - cache_font[0].rect.Height));
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SelectionStart = index;
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SpeedScrollTo = false;
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return true;
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}
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break;
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case Keys.PageDown:
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if (ScrollYShow && cache_font != null)
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{
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SpeedScrollTo = true;
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SelectionLength = 0;
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var index = GetCaretPostion(CurrentCaret.X, CurrentCaret.Y + (rect_text.Height - cache_font[0].rect.Height));
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SelectionStart = index;
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SpeedScrollTo = false;
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return true;
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}
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break;
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}
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return base.ProcessCmdKey(ref msg, keyData);
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}
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internal void IKeyPress(KeyPressEventArgs e)
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{
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OnKeyPress(e);
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}
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protected override void OnKeyPress(KeyPressEventArgs e)
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{
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if (e.KeyChar < 32)
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{
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base.OnKeyPress(e);
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return;
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}
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if (Verify(e.KeyChar, out var change))
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{
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EnterText(change ?? e.KeyChar.ToString());
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base.OnKeyPress(e);
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}
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else e.Handled = true;
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}
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/// <summary>
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/// 删除文本
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/// </summary>
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void ProcessBackSpaceKey()
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{
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if (ReadOnly || BanInput) return;
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if (cache_font == null)
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{
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IBackSpaceKey();
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return;
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}
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if (selectionLength > 0)
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{
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int start = selectionStartTemp, end = selectionLength;
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AddHistoryRecord();
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int end_temp = start + end;
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var texts = new List<string>(end);
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foreach (var it in cache_font)
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{
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if (it.i < start || it.i >= end_temp) texts.Add(it.text);
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}
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Text = string.Join("", texts);
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SelectionLength = 0;
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SelectionStart = start;
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}
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else if (selectionStart > 0)
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{
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int start = selectionStart - 1;
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var texts = new List<string>(cache_font.Length);
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foreach (var it in cache_font)
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{
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if (start != it.i) texts.Add(it.text);
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}
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Text = string.Join("", texts);
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SelectionStart = start;
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}
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}
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/// <summary>
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/// 删除文本
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/// </summary>
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void ProcessDelete()
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{
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if (cache_font == null || ReadOnly || BanInput) return;
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if (selectionLength > 0)
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{
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int start = selectionStartTemp, end = selectionLength;
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AddHistoryRecord();
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int end_temp = start + end;
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var texts = new List<string>(end);
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foreach (var it in cache_font)
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{
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if (it.i < start || it.i >= end_temp) texts.Add(it.text);
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}
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Text = string.Join("", texts);
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SelectionLength = 0;
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SelectionStart = start;
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}
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else if (selectionStart < cache_font.Length)
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{
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int start = selectionStart;
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var texts = new List<string>(cache_font.Length);
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foreach (var it in cache_font)
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{
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if (start != it.i) texts.Add(it.text);
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}
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Text = string.Join("", texts);
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SelectionStart = start;
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}
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}
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void ProcessLeftKey(bool shift)
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{
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if (shift)
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{
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int old = selectionStartTemp;
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if (selectionStartTemp == selectionStart || selectionStartTemp < selectionStart) selectionStartTemp--;
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if (selectionStartTemp < 0) selectionStartTemp = 0;
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if (old == selectionStartTemp) return;
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SelectionLength++;
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CurrentPosIndex = selectionStartTemp;
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SetCaretPostion();
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return;
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}
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if (SelectionLength > 0)
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{
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if (selectionStartTemp < selectionStart) SelectionStart = selectionStartTemp;
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else
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{
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int old = selectionStart;
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selectionStart--;
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SelectionStart = old;
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}
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SelectionLength = 0;
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}
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else
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{
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SelectionLength = 0;
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SelectionStart--;
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}
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}
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void ProcessRightKey(bool shift)
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{
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if (shift)
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{
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if (selectionStart > selectionStartTemp)
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{
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selectionStartTemp++;
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SelectionLength--;
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CurrentPosIndex = selectionStartTemp + selectionLength;
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}
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else
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{
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SelectionLength++;
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CurrentPosIndex = selectionStart + selectionLength;
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}
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SetCaretPostion();
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return;
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}
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if (SelectionLength > 0)
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{
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if (selectionStartTemp > selectionStart) SelectionStart = selectionStartTemp + selectionLength;
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else
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{
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int old = selectionStart;
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selectionStart--;
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SelectionStart = old + selectionLength;
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}
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SelectionLength = 0;
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}
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else
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{
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SelectionLength = 0;
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SelectionStart++;
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}
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}
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void ProcessUpKey(bool shift)
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{
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if (shift)
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{
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if (cache_font == null)
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{
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SelectionLength = 0;
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SelectionStart--;
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}
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else
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{
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int index = selectionStartTemp;
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if (index > cache_font.Length - 1) index = cache_font.Length - 1;
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var it = cache_font[index];
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var nearest = FindNearestFont(it.rect.X + it.rect.Width / 2, it.rect.Y - it.rect.Height / 2, cache_font, out _);
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if (nearest == null || nearest.i == selectionStartTemp)
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{
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SelectionStart = index - 1;
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SelectionLength++;
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}
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else
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{
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SelectionStart = nearest.i;
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SelectionLength += index - nearest.i;
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}
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}
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}
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else
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{
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SelectionLength = 0;
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if (cache_font == null) SelectionStart--;
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else
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{
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int end = SelectionStart;
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if (end > cache_font.Length - 1) end = cache_font.Length - 1;
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var it = cache_font[end];
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var nearest = FindNearestFont(it.rect.X + it.rect.Width / 2, it.rect.Y - it.rect.Height / 2, cache_font, out _);
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if (nearest == null || nearest.i == selectionStart) SelectionStart--;
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else SelectionStart = nearest.i;
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}
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}
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}
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void ProcessDownKey(bool shift)
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{
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if (shift)
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{
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if (cache_font == null)
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{
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SelectionLength = 0;
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SelectionStart++;
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}
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else
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{
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int index = selectionStartTemp + selectionLength;
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if (index > cache_font.Length - 1) return;
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var it = cache_font[index];
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CacheFont? nearest;
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if (it.ret) nearest = FindNearestFont(it.rect_old.Right, it.rect_old.Bottom + it.rect_old.Height / 2, cache_font, out _);
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else nearest = FindNearestFont(it.rect.X + it.rect.Width / 2, it.rect.Bottom + it.rect.Height / 2, cache_font, out _);
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if (nearest == null || nearest.i == index) SelectionLength++;
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else SelectionLength += nearest.i - index;
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CurrentPosIndex = selectionStart + selectionLength;
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SetCaretPostion();
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}
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}
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else
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{
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SelectionLength = 0;
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if (cache_font == null) SelectionStart++;
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else
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{
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int end = SelectionStart;
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if (end > cache_font.Length - 1) return;
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var it = cache_font[end];
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CacheFont? nearest;
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if (it.ret) nearest = FindNearestFont(it.rect_old.Right, it.rect_old.Bottom + it.rect_old.Height / 2, cache_font, out _);
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else nearest = FindNearestFont(it.rect.X + it.rect.Width / 2, it.rect.Bottom + it.rect.Height / 2, cache_font, out _);
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if (nearest == null || nearest.i == selectionStart) SelectionStart++;
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else SelectionStart = nearest.i;
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}
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}
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}
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void ProcessHomeKey(bool ctrl, bool shift)
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{
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if (ctrl && shift)
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{
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int index = selectionStartTemp;
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if (index == 0) return;
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if (ScrollYShow) ScrollY = 0;
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SelectionStart = 0;
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SelectionLength += index;
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}
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else
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{
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SelectionLength = 0;
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if (ctrl)
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{
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if (ScrollYShow) ScrollY = 0;
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SelectionStart = 0;
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}
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else
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{
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if (cache_font == null) return;
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int index = selectionStartTemp;
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if (index > 0)
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{
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int start = FindStart(cache_font, index - 1);
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if (start == index) return;
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SelectionStart = start;
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}
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}
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}
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}
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void ProcessEndKey(bool ctrl, bool shift)
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{
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if (cache_font == null) return;
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if (ctrl && shift)
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{
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int index = selectionStartTemp + selectionLength;
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if (index > cache_font.Length - 1) return;
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if (ScrollYShow) ScrollY = ScrollYMax;
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SelectionLength += cache_font.Length - selectionStartTemp;
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}
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else
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{
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if (ctrl)
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{
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if (ScrollYShow) ScrollY = ScrollYMax;
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SelectionLength = 0;
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SelectionStart = cache_font.Length;
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}
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else
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{
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int index = selectionStartTemp + selectionLength;
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if (index > cache_font.Length - 1) return;
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int start = FindEnd(cache_font, index);
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if (start == index) return;
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SelectionStart = start;
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}
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}
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}
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}
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}
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