Basic grid and mouse events

McBitFont.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.4.33213.308
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "McBitFont", "McBitFont\McBitFont.csproj", "{DA4DAD15-0FF6-43B6-AD42-B521DBCA34E5}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{DA4DAD15-0FF6-43B6-AD42-B521DBCA34E5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{DA4DAD15-0FF6-43B6-AD42-B521DBCA34E5}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{DA4DAD15-0FF6-43B6-AD42-B521DBCA34E5}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{DA4DAD15-0FF6-43B6-AD42-B521DBCA34E5}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {B5570D80-5662-486E-9EEA-98EB207024D8}
+	EndGlobalSection
+EndGlobal

McBitFont/Form1.Designer.cs

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+namespace McBitFont {
+    partial class Form1 {
+        /// <summary>
+        ///  Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        ///  Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing) {
+            if (disposing && (components != null)) {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        ///  Required method for Designer support - do not modify
+        ///  the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent() {
+            dotGrid = new DataGridView();
+            button1 = new Button();
+            nudX = new NumericUpDown();
+            nudY = new NumericUpDown();
+            ((System.ComponentModel.ISupportInitialize)dotGrid).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)nudX).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)nudY).BeginInit();
+            SuspendLayout();
+            // 
+            // dotGrid
+            // 
+            dotGrid.AllowUserToAddRows = false;
+            dotGrid.AllowUserToDeleteRows = false;
+            dotGrid.AllowUserToResizeColumns = false;
+            dotGrid.AllowUserToResizeRows = false;
+            dotGrid.ClipboardCopyMode = DataGridViewClipboardCopyMode.Disable;
+            dotGrid.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.DisableResizing;
+            dotGrid.ColumnHeadersVisible = false;
+            dotGrid.EditMode = DataGridViewEditMode.EditProgrammatically;
+            dotGrid.Location = new Point(12, 26);
+            dotGrid.MultiSelect = false;
+            dotGrid.Name = "dotGrid";
+            dotGrid.ReadOnly = true;
+            dotGrid.RowHeadersVisible = false;
+            dotGrid.RowHeadersWidthSizeMode = DataGridViewRowHeadersWidthSizeMode.DisableResizing;
+            dotGrid.RowTemplate.Height = 25;
+            dotGrid.SelectionMode = DataGridViewSelectionMode.CellSelect;
+            dotGrid.Size = new Size(639, 532);
+            dotGrid.TabIndex = 0;
+            dotGrid.TabStop = false;
+            dotGrid.VirtualMode = true;
+            dotGrid.CellMouseMove += dotGrid_CellMouseMove;
+            dotGrid.SelectionChanged += dotGrid_SelectionChanged;
+            // 
+            // button1
+            // 
+            button1.Location = new Point(668, 41);
+            button1.Name = "button1";
+            button1.Size = new Size(75, 23);
+            button1.TabIndex = 1;
+            button1.Text = "button1";
+            button1.UseVisualStyleBackColor = true;
+            button1.Click += button1_Click;
+            // 
+            // nudX
+            // 
+            nudX.Location = new Point(724, 100);
+            nudX.Minimum = new decimal(new int[] { 1, 0, 0, 0 });
+            nudX.Name = "nudX";
+            nudX.Size = new Size(120, 23);
+            nudX.TabIndex = 2;
+            nudX.Value = new decimal(new int[] { 1, 0, 0, 0 });
+            nudX.ValueChanged += nudX_ValueChanged;
+            // 
+            // nudY
+            // 
+            nudY.Location = new Point(724, 129);
+            nudY.Minimum = new decimal(new int[] { 1, 0, 0, 0 });
+            nudY.Name = "nudY";
+            nudY.Size = new Size(120, 23);
+            nudY.TabIndex = 3;
+            nudY.Value = new decimal(new int[] { 1, 0, 0, 0 });
+            nudY.ValueChanged += nudY_ValueChanged;
+            // 
+            // Form1
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(940, 643);
+            Controls.Add(nudY);
+            Controls.Add(nudX);
+            Controls.Add(button1);
+            Controls.Add(dotGrid);
+            Name = "Form1";
+            Text = "Form1";
+            Load += Form1_Load;
+            ((System.ComponentModel.ISupportInitialize)dotGrid).EndInit();
+            ((System.ComponentModel.ISupportInitialize)nudX).EndInit();
+            ((System.ComponentModel.ISupportInitialize)nudY).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dotGrid;
+        private Button button1;
+        private NumericUpDown nudX;
+        private NumericUpDown nudY;
+    }
+}

McBitFont/Form1.cs

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+using System.Windows.Forms;
+
+namespace McBitFont {
+    public partial class Form1 : Form {
+        public Form1() {
+            InitializeComponent();
+
+            // Setup the grid
+            dotGrid.ColumnHeadersDefaultCellStyle.BackColor = System.Drawing.Color.FromArgb(0xff, 0, 0, 0);
+            dotGrid.ColumnHeadersVisible = false;
+            dotGrid.RowHeadersVisible = false;
+            dotGrid.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.None;
+            dotGrid.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.None;
+            dotGrid.ColumnCount = 5;
+            dotGrid.RowCount = 7;
+
+            dotGrid_updateCellSizes();
+        }
+
+        private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e) {
+
+        }
+
+        private void fillData() {
+
+        }
+
+        private void button1_Click(object sender, EventArgs e) {
+
+        }
+
+        private void dotGrid_CellMouseMove(object sender, DataGridViewCellMouseEventArgs e) {
+            int row = e.RowIndex;
+            int col = e.ColumnIndex;
+            DataGridViewCell cell = dotGrid.Rows[row].Cells[col];
+
+            if (e.Button == MouseButtons.Left && cell.Style.BackColor != Color.Black) {
+                cell.Style.BackColor = Color.Black;
+                dotGrid.InvalidateCell(col, row);
+            }
+            if (e.Button == MouseButtons.Right && cell.Style.BackColor != Color.White) {
+                cell.Style.BackColor = Color.White;
+                dotGrid.InvalidateCell(col, row);
+            }
+            dotGrid.Update();
+
+        }
+
+        private void dotGrid_SelectionChanged(object sender, EventArgs e) {
+            dotGrid.ClearSelection();
+        }
+
+        private void dotGrid_updateCellSizes() {
+            for (int i = 0; i < dotGrid.ColumnCount; i++) {
+                dotGrid.Columns[i].Width = 50;
+            }
+            for (int i = 0; i < dotGrid.RowCount; i++) {
+                dotGrid.Rows[i].Height = 50;
+            }
+        }
+
+        private void Form1_Load(object sender, EventArgs e) {
+            nudX.Value = dotGrid.ColumnCount;
+            nudY.Value = dotGrid.RowCount;
+        }
+
+        private void nudX_ValueChanged(object sender, EventArgs e) {
+            dotGrid.ColumnCount = (int)nudX.Value;
+            dotGrid_updateCellSizes();
+        }
+
+        private void nudY_ValueChanged(object sender, EventArgs e) {
+            dotGrid.RowCount = (int)nudY.Value;
+            dotGrid_updateCellSizes();
+        }
+    }
+}

McBitFont/Form1.resx

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+<root>
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

McBitFont/McBitFont.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net6.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWindowsForms>true</UseWindowsForms>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+</Project>

McBitFont/Program.cs

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+namespace McBitFont {
+    internal static class Program {
+        /// <summary>
+        ///  The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main() {
+            // To customize application configuration such as set high DPI settings or default font,
+            // see https://aka.ms/applicationconfiguration.
+            ApplicationConfiguration.Initialize();
+            Application.Run(new Form1());
+        }
+    }
+}