实例介绍
【实例简介】动态添加图标 示例源码
【实例截图】
【核心代码】
using System;
using System.IO;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
private int _row = 0;
private int _col = 0;
private Label _selectedlabel = null;
private List<string> _cellList = new List<string>();
private Point _offset = new Point(250, 25);
public Form1()
{
InitializeComponent();
}
private void newToolStripMenuItem_Click(object sender, EventArgs e)
{
Form2 newForm = new Form2();
if(newForm.ShowDialog() == DialogResult.OK)
{
System.Collections.IEnumerator ie = imageList1.Images.GetEnumerator();
int index = -1;
while (ie.MoveNext())
{
index ;
treeView1.Nodes[index].Text = string.Format("{0:d}", 0);
}
Form1_initCells(newForm.Row, newForm.Col);
}
}
private void Form1_Load(object sender, EventArgs e)
{
//treeView1.Nodes.Add(new TreeNode("ICON"));
if (this.treeView1.Nodes.Count > 0)
treeView1.Nodes[0].Expand();
openFileDialog1.InitialDirectory = Application.StartupPath;
openFileDialog2.InitialDirectory = Application.StartupPath;
//imageList1.ImageSize = new Size(40, 40);
//pictureBox1.Image = imageList1.Images[4];
//pictureBox1.Image.Size = new Size(40, 40);
}
private void Form1_removeCells()
{
foreach (string str in _cellList)
{
this.Controls.RemoveByKey(str);
}
_cellList.Clear();
}
private void Form1_initCells(int row, int col)
{
_row = row;
_col = col;
Form1_removeCells();
Label [,] labels = new Label [row, col];
for(int i=0; i<row; i )
{
for(int j=0; j<col; j )
{
labels[i, j] = new Label();
labels[i, j].BorderStyle = BorderStyle.FixedSingle;
labels[i, j].Location = new Point(_offset.X j*40, _offset.Y i*40);
labels[i,j].Height = 40;
labels[i,j].Width = 40;
labels[i,j].Name = "Label[" i "," j "]";
//labels[i,j].Image = this.imageList1.Images[3];
labels[i, j].BackColor = Color.Wheat;
labels[i, j].Click = LabelClicked;
labels[i, j].AutoEllipsis = true;
this.Controls.Add(labels[i, j]);
_cellList.Add(labels[i,j].Name);
}
}
}
private void LabelClicked(object sender, EventArgs e)
{
Label label = sender as Label;
MouseEventArgs ev = e as MouseEventArgs;
_selectedlabel = label;
if(ev.Button == MouseButtons.Right)
{
if (_selectedlabel.Image != null)
{
System.Collections.IEnumerator ie = imageList1.Images.GetEnumerator();
int index = -1;
int n = 0;
while (ie.MoveNext())
{
index ;
Image image = ie as Image;
if (_selectedlabel.Text.Equals(index.ToString()))
{
int.TryParse(treeView1.Nodes[index].Text, out n);
treeView1.Nodes[index].Text = string.Format("{0:d}", n - 1);
_selectedlabel.Text = "";
_selectedlabel.Image = null;
break;
}
}
}
return;
}
if (_selectedlabel != null && treeView1.SelectedNode != null && treeView1.SelectedNode.SelectedImageIndex >= 0)
{
//_selectedlabel.Image = imageList1.Images[treeView1.SelectedNode.SelectedImageIndex].GetThumbnailImage(60, 60, null, new IntPtr());
if(_selectedlabel.Image != null)
{
System.Collections.IEnumerator ie = imageList1.Images.GetEnumerator();
int index = -1;
int n = 0;
while(ie.MoveNext())
{
index ;
Image image = ie as Image;
if(_selectedlabel.Text.Equals(index.ToString()))
{
int.TryParse(treeView1.Nodes[index].Text, out n);
treeView1.Nodes[index].Text = string.Format("{0:d}", n - 1);
break;
}
}
}
_selectedlabel.Image = imageList1.Images[treeView1.SelectedNode.SelectedImageIndex];
_selectedlabel.Text = string.Format("{0:d}", treeView1.SelectedNode.SelectedImageIndex);
}
int m = 0;
int.TryParse(treeView1.SelectedNode.Text, out m);
treeView1.SelectedNode.Text = string.Format("{0:d}", m 1);
}
private void exitToolStripMenuItem_Click(object sender, EventArgs e)
{
Application.Exit();
}
private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
{
//if (_selectedlabel != null && treeView1.SelectedNode.SelectedImageIndex >= 0)
// _selectedlabel.Image = imageList1.Images[treeView1.SelectedNode.SelectedImageIndex];
//MessageBox.Show(treeView1.SelectedImageKey);
}
private void setIconsToolStripMenuItem_Click(object sender, EventArgs e)
{
clearIconsToolStripMenuItem_Click(null, null);
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
int n=0;
foreach (string s in openFileDialog1.FileNames)
{
imageList1.Images.Add(Image.FromFile(s));
TreeNode tn = new TreeNode("treeNode" n, n, n);
tn.Text = "0";
treeView1.Nodes.Add(tn);
n ;
}
}
}
private void loadIcons()
{
}
private void clearIconsToolStripMenuItem_Click(object sender, EventArgs e)
{
imageList1.Images.Clear();
treeView1.Nodes.Clear();
}
private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
if (openFileDialog2.ShowDialog() == DialogResult.OK)
{
System.Collections.IEnumerator ie = treeView1.Nodes.GetEnumerator();
int index = -1;
while (ie.MoveNext())
{
index ;
treeView1.Nodes[index].Text = string.Format("{0:d}", 0);
}
testJsonRead(openFileDialog2.FileName);
}
}
private void saveToolStripMenuItem_Click(object sender, EventArgs e)
{
if(saveFileDialog1.ShowDialog() == DialogResult.OK)
testJsonWrite(saveFileDialog1.FileName);
}
private void testJsonRead(string path)
{
Form1_removeCells();
JsonReader reader = new JsonTextReader(new StringReader(System.IO.File.ReadAllText(path)));
int index = -1;
while (reader.Read())
{
Console.WriteLine(reader.TokenType "\t\t" reader.ValueType "\t\t" reader.Value);
if (reader.TokenType.Equals(JsonToken.PropertyName) && reader.Value.ToString().Equals("row"))
{
reader.Read();
_row = int.Parse(reader.Value.ToString());
Console.WriteLine("row is : " _row);
}
else if (reader.TokenType.Equals(JsonToken.PropertyName) && reader.Value.Equals("col"))
{
reader.Read();
_col = int.Parse(reader.Value.ToString());
Console.WriteLine("col is : " _col);
}
else if (reader.TokenType.Equals(JsonToken.PropertyName) && reader.Value.Equals("id"))
{
reader.Read();
index ;
if(reader.Value.ToString().Equals(string.Empty))
addCell(index, -1);
else
addCell(index, int.Parse(reader.Value.ToString()));
}
}
}
private void addCell(int index, int icon)
{
int i = index / _col;
int j = index % _col;
Label label = new Label();
label.BorderStyle = BorderStyle.FixedSingle;
label.Location = new Point(_offset.X j * 40, _offset.Y i * 40);
label.Height = 40;
label.Width = 40;
label.Name = "Label[" i "," j "]";
label.BackColor = Color.Wheat;
label.Click = LabelClicked;
label.AutoEllipsis = true;
this.Controls.Add(label);
_cellList.Add(label.Name);
if (icon >= 0)
{
label.Image = this.imageList1.Images[icon];
treeView1.Nodes[icon].Text = string.Format("{0:d}", int.Parse(treeView1.Nodes[icon].Text) 1);
}
}
private void testJsonWrite(string path)
{
StringWriter sw = new StringWriter();
JsonWriter writer = new JsonTextWriter(sw);
writer.WriteStartObject();
writer.WritePropertyName("map");
writer.WriteStartObject();
writer.WritePropertyName("row");
writer.WriteValue(_row);
writer.WritePropertyName("col");
writer.WriteValue(_col);
writer.WritePropertyName("data");
writer.WriteStartArray();
for (int i = 0; i < _row; i )
{
for (int j = 0; j < _col; j )
{
writer.WriteStartObject();
writer.WritePropertyName("id");
string name = "Label[" i "," j "]";
Label lbl =this.Controls[name] as Label;
Console.WriteLine(name " : " lbl.Text);
writer.WriteValue(lbl.Text);
writer.WriteEndObject();
}
}
writer.WriteEndArray();
writer.WriteEndObject();
writer.WriteEndObject();
writer.Flush();
string jsonText = sw.GetStringBuilder().ToString();
System.IO.File.WriteAllText(path, jsonText);
}
private void viewHelpToolStripMenuItem_Click(object sender, EventArgs e)
{
Form3 helpForm = new Form3();
helpForm.Show();
}
private void resetToolStripMenuItem_Click(object sender, EventArgs e)
{
System.Collections.IEnumerator ie = treeView1.Nodes.GetEnumerator();
int index = -1;
while (ie.MoveNext())
{
index ;
treeView1.Nodes[index].Text = string.Format("{0:d}", 0);
}
for (int i = 0; i < _row; i )
{
for (int j = 0; j < _col; j )
{
string name = "Label[" i "," j "]";
Label lbl = this.Controls[name] as Label;
lbl.Text = "";
lbl.Image = null;
}
}
}
private void Form1_Resize(object sender, EventArgs e)
{
treeView1.SetBounds(treeView1.Location.X, treeView1.Location.Y, treeView1.Size.Width, this.Size.Height - 100);
}
}
}
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