DepartmentProject/DepartmentPortal/Common/DesktopTools/BaseControls/BaseControlImage.cs

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2.6 KiB
C#
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using DesktopTools.Interfaces;
using System;
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using System.Drawing;
using System.IO;
using System.Windows.Forms;
namespace DesktopTools.BaseControls
{
/// <summary>
/// Контрол, предоставляющий работу с изображением
/// </summary>
public partial class BaseControlImage : AbstractBaseControl, IBaseControl
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{
/// <summary>
/// Конструктор
/// </summary>
/// <param name="propertyName"></param>
/// <param name="mustFilling"></param>
/// <param name="readOnly"></param>
/// <param name="width"></param>
/// <param name="height"></param>
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public BaseControlImage(string propertyName, bool mustFilling, bool readOnly, int width, int height) : base(propertyName, mustFilling, readOnly)
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{
InitializeComponent();
_baseControl = this;
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if (width != 0)
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{
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Width = width;
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}
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if (height != 0)
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{
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Height = height;
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}
buttonLoad.Click += (object sender, EventArgs e) =>
{
var dialog = new OpenFileDialog();
if (dialog.ShowDialog() == DialogResult.OK)
{
try
{
pictureBox.ClientSize = new Size(150, 150);
pictureBox.Image = new Bitmap(dialog.FileName);
CallOnValueChangeEvent();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Ошибка при загрузке файла", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
};
panelControl.Controls.Add(pictureBox);
panelControl.Controls.Add(buttonLoad);
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}
public void SetDefaultValue() => _originalValue = null;
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public void SetValueToControl(object value)
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{
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if (value != null && (value as byte[])?.Length > 0)
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{
using MemoryStream mStream = new(value as byte[]);
pictureBox.Image = Image.FromStream(mStream);
}
else if (!_mustFilling)
{
pictureBox.Image = null;
}
}
public void DropValueForControl()
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{
if (_originalValue != null)
{
using MemoryStream mStream = new(_originalValue as byte[]);
pictureBox.Image = Image.FromStream(mStream);
}
else if (!_mustFilling)
{
pictureBox.Image = null;
}
}
public bool CheckValueForControl()
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{
if (_mustFilling && pictureBox.Image == null)
{
BackColor = Color.OrangeRed;
return false;
}
return true;
}
public object GetValueFromControl()
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{
if (_mustFilling && pictureBox.Image == null)
{
throw new ArgumentNullException($"Поле свойства '{labelTitle.Text}' должно быть заполнено");
}
var converter = new ImageConverter();
return (byte[])converter.ConvertTo(new Bitmap(pictureBox.Image), typeof(byte[]));
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}
public string GetPropertyName() => _propertyName;
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}
}