Initial commit.

+ CsvParser: CSV Parser with indexing. + CTextBox: CustomTextBox. + FrmCsvViewer: Basic form to view CSV files, as forms.
2017-01-30 01:24:01 +01:00
commit cd5a7ad584
11 changed files with 1114 additions and 0 deletions
--- a/FrmCsvViewer.cs
+++ b/FrmCsvViewer.cs
@@ -0,0 +1,169 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Windows.Forms;
+
+namespace CsvView
+{
+    public partial class FrmCsvViewer : Form
+    {
+        public FrmCsvViewer()
+        {
+            InitializeComponent();
+        }
+        
+        private void txtPath_DoubleClick(object sender, EventArgs e)
+        {
+            OpenFileDialog loadDialog = new OpenFileDialog();
+            DialogResult result = loadDialog.ShowDialog();
+            if (result == DialogResult.OK)
+            {
+                txtPath.Text = loadDialog.FileName;
+            }
+        }
+
+        private string _loadedFile = string.Empty;
+        private long _currentReg = 0;
+        private long _totalRegs = 0;
+        private List<List<string>> _data = null;
+
+        private void btnLoad_Click(object sender, EventArgs e)
+        {
+            if (File.Exists(txtPath.Text) == false)
+            {
+                RenderRegClean();
+                _loadedFile = null;
+                _totalRegs = 0;
+                _data = null;
+                MessageBoxEx.Show(this, "FileNotFound");
+                return;
+            }
+
+            _loadedFile = txtPath.Text;
+
+            var csvParser = new CsvParser();
+            csvParser.ParseFile(_loadedFile);
+
+            _totalRegs = csvParser.Data.Count;
+            _data = csvParser.Data;
+
+            RenderReg(0);
+        }
+
+        [DllImport("user32.dll", CharSet = CharSet.Auto)]
+        private static extern IntPtr SendMessage(IntPtr hWnd, UInt32 Msg, IntPtr wParam, IntPtr lParam);
+
+        private const int WM_SetRedraw = 0XB;
+
+        private void RenderReg(long currentReg)
+        {
+            if (_data == null || _data.Count <= 0)
+            {
+                RenderRegClean();
+            }
+            pnlReg.Enabled = true;
+            bool first = false;
+            bool last = false;
+            if (currentReg <= 0)
+            {
+                currentReg = 0;
+                first = true;
+            }
+            if (currentReg >= (_totalRegs - 1))
+            {
+                currentReg = _totalRegs - 1;
+                last = true;
+            }
+
+            _currentReg = currentReg;
+            txtCurrentReg.Text = Convert.ToString(currentReg);
+            txtTotalRegs.Text = Convert.ToString(_totalRegs);
+
+            btnFirstReg.Enabled = (first == false);
+            btnPrevReg.Enabled = (first == false);
+            btnLastReg.Enabled = (last == false);
+            btnNextReg.Enabled = (last == false);
+
+            List<string> currentData = _data[(int)currentReg];
+            
+            pnlData.Visible = false;
+            pnlData.Controls.Clear();
+            int y = 0;
+            const int TexboxPadding = 5;
+            const int Padding = 9;
+            const int LineHeight = 15;
+            for (int i = 0; i < currentData.Count; i++)
+            {
+                TextBox txtValue = RenderValue(currentData[i], y, TexboxPadding, Padding, LineHeight);
+                pnlData.Controls.Add(txtValue);
+                y += txtValue.Height + Padding;
+            }
+            pnlData.Visible = true;
+        }
+
+        private TextBox RenderValue(string value, int y, int TexboxPadding, int Padding, int LineHeight)
+        {
+            string[] valueLines = value.Split('\n');
+            CTextBox txtValue = new CTextBox()
+            {
+                Anchor = (AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right),
+                Width = pnlData.Width - Padding,
+                Height = (valueLines.Length * LineHeight) + TexboxPadding,
+                Top = y,
+                Left = 0,
+                ReadOnly = true,
+            };
+            for (int j = 0; j < valueLines.Length; j++)
+            {
+                if (j > 0)
+                {
+                    txtValue.AppendText("\n");
+                }
+                txtValue.AppendText(valueLines[j]);
+            }
+            return txtValue;
+        }
+
+        private void RenderRegClean()
+        {
+            pnlReg.Enabled = false;
+            txtCurrentReg.Text = string.Empty;
+            txtTotalRegs.Text = string.Empty;
+            pnlData.Controls.Clear();
+        }
+
+        private void btnFirstReg_Click(object sender, EventArgs e)
+        {
+            RenderReg(0);
+        }
+
+        private void btnPrevReg_Click(object sender, EventArgs e)
+        {
+            RenderReg(_currentReg - 1);
+        }
+
+        private void btnNextReg_Click(object sender, EventArgs e)
+        {
+            RenderReg(_currentReg + 1);
+        }
+
+        private void btnLastReg_Click(object sender, EventArgs e)
+        {
+            RenderReg(_totalRegs - 1);
+        }
+
+        private void txtCurrentReg_TextChanged(object sender, EventArgs e)
+        {
+            int newReg = 0;
+            if (int.TryParse(txtCurrentReg.Text, out newReg))
+            {
+                RenderReg(newReg);
+            }
+            else
+            {
+                RenderReg(_currentReg);
+            }
+        }
+    }
+}