using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;
using DevExpress.XtraEditors;
using TBAppraisalTools.Properties;
using DevExpress.XtraRichEdit.UI;
using DevExpress.XtraRichEdit.API.Native;
using UI.Framework.Forms;
using DevExpress.XtraBars;
using System.Text.RegularExpressions;

namespace TBAppraisalTools.Forms
{
    public partial class EditTextForm : BaseForm
    {
        public TbConfig tbConfig;

        string fontName = "宋体";//字体名称
        float fontSize = 12f;//字体大小
        bool fontBold = false;//字体加粗/正常
        bool fontItalic = false;//字体斜体/正常
        bool fontUnderline = false;//字体下划线/正常
        bool fontStrikeout = false;//字体删除线/正常
        Color fontColor = Color.Black;

        public EditTextForm(TbConfig tbConfig = null)
        {
            InitializeComponent();
            this.Text = tbConfig == null ? Resources.AddTextTitle : Resources.EditTextTitle;
            this.tbConfig = tbConfig;
        }

        private void EditTextForm_Load(object sender, EventArgs e)
        {
            if (tbConfig != null)
            {
                richEditControl1.Document.Text = tbConfig.T_Text;
                changeFontNameItem2.EditValue = fontName = tbConfig.T_Font.Name;
                changeFontSizeItem2.EditValue = fontSize = tbConfig.T_Font.Size;
                barEditItem1.EditValue = fontColor = tbConfig.T_ForeColor;
                fontBold = tbConfig.T_Font.Bold;
                fontItalic = tbConfig.T_Font.Italic;
                fontUnderline = tbConfig.T_Font.Underline;
                fontStrikeout = tbConfig.T_Font.Strikeout;
            }
        }

        /// <summary>
        /// 样式有变化时.
        /// </summary>
        private void Changed()
        {
            try
            {
                var doc = richEditControl1.Document;
                doc.BeginUpdate();
                var cp = doc.BeginUpdateCharacters(0, doc.Text.Length);
                cp.FontName = fontName;
                cp.FontSize = fontSize;
                cp.Bold = fontBold;
                cp.Italic = fontItalic;
                cp.Underline = fontUnderline ? UnderlineType.Single : UnderlineType.None;
                cp.Strikeout = fontStrikeout ? StrikeoutType.Single : StrikeoutType.None;
                cp.ForeColor = fontColor;
                doc.EndUpdateCharacters(cp);
                doc.EndUpdate();
            }
            catch (Exception ex)
            {
                ShowError(ex);
            }
        }

        /// <summary>
        /// 窗体关闭
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void EditTextForm_FormClosing(object sender, FormClosingEventArgs e)
        {
            try
            {
                if (string.IsNullOrWhiteSpace(richEditControl1.Document.Text)) throw new Exception("内容不能为空");
                if (MessageBox.Show("是否保存?", "温馨提示", MessageBoxButtons.OKCancel) == DialogResult.OK)
                {
                    if (tbConfig == null)
                    {
                        tbConfig = new TbConfig()
                        {
                            T_Font = new Font(fontName, fontSize, (fontBold ? FontStyle.Bold : FontStyle.Regular) | (fontItalic ? FontStyle.Italic : FontStyle.Regular) | (fontUnderline ? FontStyle.Underline : FontStyle.Regular) | (fontStrikeout ? FontStyle.Strikeout : FontStyle.Regular)),
                            T_ForeColor = fontColor,
                            T_Text = richEditControl1.Document.Text
                        };
                    }
                    else
                    {
                        tbConfig.T_Text = richEditControl1.Document.Text;
                        tbConfig.T_ForeColor = fontColor;
                        tbConfig.T_Font = new Font(fontName, fontSize, (fontBold ? FontStyle.Bold : FontStyle.Regular) | (fontItalic ? FontStyle.Italic : FontStyle.Regular) | (fontUnderline ? FontStyle.Underline : FontStyle.Regular) | (fontStrikeout ? FontStyle.Strikeout : FontStyle.Regular));
                    }
                    this.DialogResult = DialogResult.OK;
                }
            }
            catch (Exception ex)
            {
                ShowError(ex);
            }
        }

        /// <summary>
        /// 字体名字
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void changeFontNameItem2_EditValueChanged(object sender, EventArgs e)
        {
            if (changeFontNameItem2.EditValue != null)
            {
                fontName = changeFontNameItem2.EditValue.ToString();
                Changed();
            }
        }

        /// <summary>
        /// 字体大小
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void changeFontSizeItem2_EditValueChanged(object sender, EventArgs e)
        {
            if (changeFontSizeItem2.EditValue != null)
            {
                fontSize = float.Parse(changeFontSizeItem2.EditValue.ToString());
                Changed();
            }
        }

        /// <summary>
        /// 字体颜色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void barEditItem1_EditValueChanged(object sender, EventArgs e)
        {
            if (barEditItem1.EditValue != null)
            {
                var barEditItem = barEditItem1.EditValue;
                if (barEditItem != null)
                {
                    var fontColorStr = barEditItem1.EditValue.ToString();
                    var reg = Regex.Match(fontColorStr, @"Color \[A=(?<A>\d+?), R=(?<R>\d+?), G=(?<G>\d+?), B=(?<B>\d+?)\]");
                    if (reg.Success)
                    {
                        fontColor = Color.FromArgb(int.Parse(reg.Groups["A"].Value), int.Parse(reg.Groups["R"].Value), int.Parse(reg.Groups["G"].Value), int.Parse(reg.Groups["B"].Value));
                        richEditControl1.Document.DefaultCharacterProperties.ForeColor = fontColor;
                        Changed();
                    }
                }
            }
        }

        /// <summary>
        /// 字体粗体/正常
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toggleFontBoldItem1_ItemClick(object sender, ItemClickEventArgs e)
        {
            var toggleFontBoldItem = e.Item as ToggleFontBoldItem;
            fontBold = toggleFontBoldItem.Checked;
            Changed();
        }

        /// <summary>
        /// 文字斜体/正常
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toggleFontItalicItem1_ItemClick(object sender, ItemClickEventArgs e)
        {
            var toggleFontItalicItem = e.Item as ToggleFontItalicItem;
            fontItalic = toggleFontItalicItem.Checked;
            Changed();
        }

        /// <summary>
        /// 文字下划线/正常
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toggleFontUnderlineItem1_ItemClick(object sender, ItemClickEventArgs e)
        {
            var toggleFontUnderlineItem = e.Item as ToggleFontUnderlineItem;
            fontUnderline = toggleFontUnderlineItem.Checked;
            Changed();
        }

        /// <summary>
        /// 文字删除线/正常
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toggleFontStrikeoutItem2_ItemClick(object sender, ItemClickEventArgs e)
        {
            var toggleFontStrikeoutItem = e.Item as ToggleFontStrikeoutItem;
            fontStrikeout = toggleFontStrikeoutItem.Checked;
            Changed();
        }

        private void label_Click(object sender, EventArgs e)
        {
            try
            {                
                if (sender.GetType() == typeof(Label))
                {
                    var label = sender as Label;
                    richEditControl1.Text += label.Text;
                }
            }
            catch (Exception ex)
            {
                ShowError(ex);
            }
        }
    }
}