ShareX/ShareX.ScreenCaptureLib/Shapes/Drawing/TextDrawingShape.cs

#region License Information (GPL v3)

/*
    ShareX - A program that allows you to take screenshots and share any file type
    Copyright (c) 2007-2016 ShareX Team

    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License
    as published by the Free Software Foundation; either version 2
    of the License, or (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

    Optionally you can also view the license at <http://www.gnu.org/licenses/>.
*/

#endregion License Information (GPL v3)

using ShareX.HelpersLib;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Text;
using System.Threading;
using System.Windows.Forms;

namespace ShareX.ScreenCaptureLib
{
    public class TextDrawingShape : BaseDrawingShape
    {
        public override ShapeType ShapeType { get; } = ShapeType.DrawingText;

        public string Text { get; set; }
        public string TextFont { get; set; } = "Arial";
        public int TextSize { get; set; } = 18;
        public bool TextBold { get; set; }
        public bool TextItalic { get; set; }
        public bool TextUnderline { get; set; }
        public StringAlignment AlignmentHorizontal { get; set; }
        public StringAlignment AlignmentVertical { get; set; }

        public override void Draw(Graphics g)
        {
            base.Draw(g);

            if (!string.IsNullOrEmpty(Text))
            {
                DrawText(g);
            }
        }

        public override void DrawFinal(Graphics g, Bitmap bmp)
        {
            if (!string.IsNullOrEmpty(Text))
            {
                DrawText(g);
            }
        }

        private void DrawText(Graphics g)
        {
            FontStyle fontStyle = FontStyle.Regular;

            if (TextBold)
            {
                fontStyle |= FontStyle.Bold;
            }

            if (TextItalic)
            {
                fontStyle |= FontStyle.Italic;
            }

            if (TextUnderline)
            {
                fontStyle |= FontStyle.Underline;
            }

            using (Font font = new Font(TextFont, TextSize, fontStyle))
            using (StringFormat sf = new StringFormat { Alignment = AlignmentHorizontal, LineAlignment = AlignmentVertical })
            {
                using (Brush textBrush = new SolidBrush(BorderColor))
                {
                    g.DrawString(Text, font, textBrush, Rectangle, sf);
                }
            }
        }

        private void UpdateText()
        {
            Manager.PauseForm();

            using (TextDrawingInputBox inputBox = new TextDrawingInputBox(Text, TextFont, BorderColor, TextSize))
            {
                if (inputBox.ShowDialog() == DialogResult.OK)
                {
                    Text = inputBox.InputText;
                    TextFont = inputBox.TextFont;
                    TextSize = inputBox.TextSize;
                    BorderColor = inputBox.TextColor;
                    TextBold = inputBox.TextBold;
                    TextItalic = inputBox.TextItalic;
                    TextUnderline = inputBox.TextUnderline;
                    AlignmentHorizontal = inputBox.AlignmentHorizontal;
                    AlignmentVertical = inputBox.AlignmentVertical;
                }
            }

            Manager.ResumeForm();
        }

        public override void OnShapeCreated()
        {
            UpdateText();
        }

        public override void OnShapeDoubleClicked()
        {
            UpdateText();
        }
    }
}