+ UIDigitalLabel: 增加冷液晶显示LCD标签

SunnyUI/Controls/UIDigitalLabel.cs

@@ -0,0 +1,136 @@
+/******************************************************************************
+ * SunnyUI 开源控件库、工具类库、扩展类库、多页面开发框架。
+ * CopyRight (C) 2012-2023 ShenYongHua(沈永华).
+ * QQ群：56829229 QQ：17612584 EMail：SunnyUI@QQ.Com
+ *
+ * Blog:   https://www.cnblogs.com/yhuse
+ * Gitee:  https://gitee.com/yhuse/SunnyUI
+ * GitHub: https://github.com/yhuse/SunnyUI
+ *
+ * SunnyUI.dll can be used for free under the GPL-3.0 license.
+ * If you use this code, please keep this note.
+ * 如果您使用此代码，请保留此说明。
+ ******************************************************************************
+ * 文件名称: UIDigitalLabel.cs
+ * 文件说明: 冷液晶显示LCD标签
+ * 当前版本: V3.6.1
+ * 创建日期: 2023-12-01
+ *
+ * 2023-12-01: V3.6.1 增加文件说明
+******************************************************************************/
+
+/******************************************************************************
+ * sa-digital-number.ttf
+ * Digital Numbers Fonts是一种固定宽度（web）字体，采用冷液晶显示（LCD）样式。
+ * 依据SIL Open Font License 1.1授权协议免费公开。
+ * https://github.com/s-a/digital-numbers-font
+ * Copyright (c) 2015, Stephan Ahlf (stephan.ahlf@googlemail.com)
+ * This Font Software is licensed under the SIL Open Font License, Version 1.1.
+******************************************************************************/
+
+using System;
+using System.ComponentModel;
+using System.Drawing;
+using System.Windows.Forms;
+
+namespace Sunny.UI
+{
+    [DefaultEvent("ValueChanged")]
+    [DefaultProperty("Value")]
+    [ToolboxItem(true)]
+    public class UIDigitalLabel : UIControl
+    {
+        public UIDigitalLabel()
+        {
+            SetStyleFlags();
+            Size = new Size(208, 42);
+            TextAlign = ContentAlignment.MiddleRight;
+            ShowText = ShowRect = ShowFill = false;
+            ForeColor = Color.Lime;
+            BackColor = Color.Black;
+        }
+
+        private double digitalValue;
+
+        [Description("浮点数"), Category("SunnyUI")]
+        [DefaultValue(typeof(double), "0")]
+        public double Value
+        {
+            get => digitalValue;
+            set
+            {
+                digitalValue = value;
+                ValueChanged?.Invoke(this, EventArgs.Empty);
+                Invalidate();
+            }
+        }
+
+        public event EventHandler ValueChanged;
+
+        private int digitalSize = 24;
+
+        [Description("LCD字体大小"), Category("SunnyUI")]
+        [DefaultValue(24)]
+        public int DigitalSize
+        {
+            get => digitalSize;
+            set
+            {
+                digitalSize = Math.Max(9, value);
+                Invalidate();
+            }
+        }
+
+        private int decimalPlaces = 2;
+
+        [Description("浮点数，显示文字小数位数"), Category("SunnyUI")]
+        [DefaultValue(2)]
+        public int DecimalPlaces
+        {
+            get => decimalPlaces;
+            set
+            {
+                decimalPlaces = Math.Max(0, value);
+                Invalidate();
+            }
+        }
+
+        /// <summary>
+        /// 重载绘图
+        /// </summary>
+        /// <param name="e">绘图参数</param>
+        protected override void OnPaint(PaintEventArgs e)
+        {
+            //e.Graphics.Clear(FillColor);
+
+            using (Font font = DigitalFont.Instance.GetFont(DigitalSize))
+            {
+                string text = Value.ToString("F" + DecimalPlaces);
+                e.Graphics.DrawString(text, font, ForeColor, new Rectangle(0, 0, Width, Height), TextAlign, TextOffset.X, TextOffset.Y);
+            }
+        }
+
+        private Point textOffset = new Point(0, 0);
+
+        [Description("文字偏移"), Category("SunnyUI")]
+        [DefaultValue(typeof(Point), "0, 0")]
+        public Point TextOffset
+        {
+            get => textOffset;
+            set
+            {
+                textOffset = value;
+                Invalidate();
+            }
+        }
+
+        /// <summary>
+        /// 设置主题样式
+        /// </summary>
+        /// <param name="uiColor">主题样式</param>
+        public override void SetStyleColor(UIBaseStyle uiColor)
+        {
+
+        }
+    }
+}

SunnyUI/Font/UDigitalFont.cs

@@ -0,0 +1,51 @@
+using System.Drawing;
+using System.Drawing.Text;
+using System.IO;
+using System.Runtime.InteropServices;
+
+namespace Sunny.UI
+{
+    public class DigitalFont
+    {
+        private static DigitalFont _instance = null;
+
+        public static DigitalFont Instance
+        {
+            get
+            {
+                if (_instance == null) _instance = new DigitalFont();
+                return _instance;
+            }
+        }
+
+        private readonly PrivateFontCollection ImageFont;
+
+        public DigitalFont()
+        {
+            byte[] buffer = ReadFontFileFromResource("Sunny.UI.Font.sa-digital-number.ttf");
+            ImageFont = new PrivateFontCollection();
+            var memoryFont = Marshal.AllocCoTaskMem(buffer.Length);
+            Marshal.Copy(buffer, 0, memoryFont, buffer.Length);
+            ImageFont.AddMemoryFont(memoryFont, buffer.Length);
+        }
+
+        public Font GetFont(float size)
+        {
+            return new Font(ImageFont.Families[0], size, FontStyle.Regular, GraphicsUnit.Point);
+        }
+
+        private byte[] ReadFontFileFromResource(string name)
+        {
+            byte[] buffer = null;
+            Stream fontStream = System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream(name);
+            if (fontStream != null)
+            {
+                buffer = new byte[fontStream.Length];
+                fontStream.Read(buffer, 0, (int)fontStream.Length);
+                fontStream.Close();
+            }
+
+            return buffer;
+        }
+    }
+}

SunnyUI/SunnyUI.csproj

@@ -41,6 +41,7 @@
       <None Remove="Common\FastLZx64.dat" />
       <None Remove="Common\FastLZx86.dat" />
       <None Remove="Font\MaterialIcons-Regular.ttf" />
+      <None Remove="Font\sa-digital-number.ttf" />
     </ItemGroup>
 
     <ItemGroup>
@@ -64,6 +65,7 @@
         <EmbeddedResource Include="Font\fa-solid-900.ttf" />
         <EmbeddedResource Include="Font\FontAwesome.ttf" />
         <EmbeddedResource Include="Font\MaterialIcons-Regular.ttf" />
+        <EmbeddedResource Include="Font\sa-digital-number.ttf" />
     </ItemGroup>
 
     <ItemGroup Condition="'$(TargetFramework)' == 'net40'">