AutoPatientInfoRecorder/src/AntdUI/Controls/Input/Input.Mouse.cs

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// COPYRIGHT (C) Tom. ALL RIGHTS RESERVED.
// THE AntdUI PROJECT IS AN WINFORM LIBRARY LICENSED UNDER THE Apache-2.0 License.
// LICENSED UNDER THE Apache License, VERSION 2.0 (THE "License")
// YOU MAY NOT USE THIS FILE EXCEPT IN COMPLIANCE WITH THE License.
// YOU MAY OBTAIN A COPY OF THE LICENSE AT
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING, SOFTWARE
// DISTRIBUTED UNDER THE LICENSE IS DISTRIBUTED ON AN "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
// SEE THE LICENSE FOR THE SPECIFIC LANGUAGE GOVERNING PERMISSIONS AND
// LIMITATIONS UNDER THE License.
// GITEE: https://gitee.com/antdui/AntdUI
// GITHUB: https://github.com/AntdUI/AntdUI
// CSDN: https://blog.csdn.net/v_132
// QQ: 17379620

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;

namespace AntdUI
{
    /// <summary>
    /// 透明文本框
    /// </summary>
    partial class Input
    {
        bool mouseDown = false, mouseDownMove = false;
        Point oldMouseDown;
        protected override void OnMouseDown(MouseEventArgs e)
        {
            base.OnMouseDown(e);
            is_prefix_down = is_suffix_down = false;
            if (e.Button == MouseButtons.Left)
            {
                if (cache_font != null && e.Clicks > 1)
                {
                    mouseDownMove = mouseDown = false;

                    var index = GetCaretPostion(e.Location.X + scrollx, e.Location.Y + scrolly);

                    int start = 0, end;

                    if (index > 0) start = FindStart(cache_font, index - 2);
                    if (index >= cache_font.Length) end = cache_font.Length;
                    else end = FindEnd(cache_font, index);

                    SelectionStart = start;
                    SelectionLength = end - start;
                    return;
                }
                if (is_clear && rect_r.Contains(e.Location))
                {
                    is_clear_down = true;
                    return;
                }