73 lines
2.7 KiB
C#
73 lines
2.7 KiB
C#
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using System.ComponentModel;
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using SolidBrush = System.Drawing.SolidBrush;
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namespace UI_WinForms.Components;
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public sealed partial class NXProgressBar : UserControl
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{
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private static readonly SolidBrush BACKGROUND_NOT_FILLED = new(SystemColors.Control);
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private readonly SolidBrush backgroundFilled;
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private readonly SolidBrush textBrush;
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public NXProgressBar()
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{
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this.InitializeComponent();
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this.backgroundFilled = new SolidBrush(this.BackColor);
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this.textBrush = new SolidBrush(this.ForeColor);
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}
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[Category("Settings"), Description("Text to show inside the progress bar.")]
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public string InformationText { get; set; } = string.Empty;
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[Category("Settings"), Description("The current percentage [0,100] of the progress bar.")]
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public int PercentInt
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{
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get => (int) (this.PercentFloat * 100);
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set => this.PercentFloat = value / 100f;
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}
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[Category("Settings"), Description("The current percentage [0,1] of the progress bar.")]
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public float PercentFloat { get; set; } = 0;
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[Category("Settings"), Description("When true, appends the percentage to the text.")]
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public bool AppendPercentageToText { get; set; } = true;
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protected override void OnPaintBackground(PaintEventArgs e)
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{
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// Do not paint the background.
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}
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// Draw the progress bar by filling the background of the label with color:
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protected override void OnPaint(PaintEventArgs e)
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{
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base.OnPaint(e);
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var width = (int) MathF.Ceiling((this.Width - this.Margin.Horizontal) * this.PercentFloat);
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var height = this.Height - this.Margin.Vertical;
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// Erase the background:
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e.Graphics.FillRectangle(BACKGROUND_NOT_FILLED, this.Margin.Left, this.Margin.Top, this.Width - this.Margin.Horizontal, height);
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// Draw the filled background:
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e.Graphics.FillRectangle(this.backgroundFilled, this.Margin.Left, this.Margin.Top, width, height);
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// Calculate the text x position by using the margin:
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var textX = this.Margin.Left + this.Padding.Left;
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// Calculate the text y position by considering the margin:
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var textY = (int) MathF.Ceiling((this.Height - this.Font.Height) / 2f) + this.Margin.Top + this.Padding.Top;
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// Draw the text horizontally at the beginning, and vertically centered:
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e.Graphics.DrawString(this.GetTextForRendering(), this.Font, this.textBrush, textX, textY);
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}
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private string GetTextForRendering()
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{
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var text = this.InformationText;
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if (this.AppendPercentageToText)
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text += $" ({this.PercentInt}%)";
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return text;
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}
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}
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