// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Drawing;
 
namespace WinFormsControlsTest;
 
[DesignerCategory("Default")]
public partial class DataGridViewTest : Form
{
    private static readonly Font[] s_fonts =
    [
        new Font("Tahoma", 12F, FontStyle.Regular),
        new Font("Consolas", 14F, FontStyle.Italic),
        new Font("Arial", 9F, FontStyle.Bold),
        new Font("Microsoft Sans Serif", 11F, FontStyle.Regular)
    ];
    private int _cellFontIndex;
    private int _columnHeaderFontIndex;
    private int _rowHeaderFontIndex;
 
    public DataGridViewTest()
    {
        InitializeComponent();
 
        dataGridView1.Rows.Add(new DataGridViewRow() { Visible = false });
        dataGridView1.Rows.Add("DefaultCellStyle", dataGridView1.DefaultCellStyle.Font.ToString());
        dataGridView1.Rows.Add("ColumnHeadersDefaultCellStyle", dataGridView1.ColumnHeadersDefaultCellStyle.Font.ToString());
        dataGridView1.Rows.Add("RowHeadersDefaultCellStyle", dataGridView1.RowHeadersDefaultCellStyle.Font.ToString());
        column6.Image = Image.FromFile("Images\\SmallA.bmp");
 
        int i = 1;
        foreach (DataGridViewRow row in dataGridView1.Rows)
        {
            if (row.Visible)
            {
                row.HeaderCell.Value = $"Row {i++}";
            }
        }
    }
 
    protected override void OnLoad(EventArgs e)
    {
        base.OnLoad(e);
 
        currentDPILabel1.Text = DeviceDpi.ToString();
    }
 
    private void DataGridView_DpiChanged(object sender, DpiChangedEventArgs e)
    {
        currentDPILabel1.Text = DeviceDpi.ToString();
    }
 
    private void changeFontButton_Click(object sender, EventArgs e)
    {
        _cellFontIndex++;
        if (_cellFontIndex >= s_fonts.Length)
        {
            _cellFontIndex -= s_fonts.Length;
        }
 
        _columnHeaderFontIndex += 2;
        if (_columnHeaderFontIndex >= s_fonts.Length)
        {
            _columnHeaderFontIndex -= s_fonts.Length;
        }
 
        _rowHeaderFontIndex += 3;
        if (_rowHeaderFontIndex >= s_fonts.Length)
        {
            _rowHeaderFontIndex -= s_fonts.Length;
        }
 
        dataGridView1.DefaultCellStyle.Font = s_fonts[_cellFontIndex];
        dataGridView1.Rows[0].Cells[1].Value = s_fonts[_cellFontIndex];
 
        dataGridView1.ColumnHeadersDefaultCellStyle.Font = s_fonts[_columnHeaderFontIndex];
        dataGridView1.Rows[1].Cells[1].Value = s_fonts[_columnHeaderFontIndex];
 
        dataGridView1.RowHeadersDefaultCellStyle.Font = s_fonts[_rowHeaderFontIndex];
        dataGridView1.Rows[2].Cells[1].Value = s_fonts[_rowHeaderFontIndex];
    }
 
    private void resetFontButton_Click(object sender, EventArgs e)
    {
        dataGridView1.DefaultCellStyle.Font = null;
        dataGridView1.ColumnHeadersDefaultCellStyle.Font = null;
        dataGridView1.RowHeadersDefaultCellStyle.Font = null;
    }
 
    private void numericUpDown1_ValueChanged(object sender, EventArgs e)
    {
        Font = new Font("Tahoma", (float)numericUpDown1.Value, FontStyle.Regular);
    }
}