public void cleanInit()
{
graph = new Microsoft.Msagl.Drawing.Graph("Huffman Tree");
viewer.Graph = graph;
viewer.Update();
Dtable.Clear();
dataGridView1.Update();
textBox1.Text = "";
textBox2.Text = "";
textBox3.Text = "";
label1.Text = "Compression Ratio:";
}
public void cleanInit()
{
graph = new Microsoft.Msagl.Drawing.Graph("Huffman Tree");
viewer.Graph = graph;
viewer.Update();
Dtable.Clear();
dataGridView1.Update();
textBox1.Text = "";
textBox2.Text = "";
textBox3.Text = "";
mainInput = "";
encodedText = "";
decodedText = "";
label1.Text = "Compression Ratio:";
nodeZero = new HuffmanNode();
EncodeNodeList = new SortedDictionary <int, HuffmanNode>();
EncodeNodeList.Add(nodeZero.Depth, nodeZero);
firstReadOfChar = new List <char>();
dynamicMap = new Dictionary <char, HuffmanNode>();
}
void SelectNodeGraph()
{
// TODO: select nodes in selected Path
Node selectedNode = gLocalViewer.SelectedObject as Node;
if (selectedNode != null)
{
if (_prevSelectedNode != null)
{
IGraphItem prevItem = _prevSelectedNode.UserData as GraphItem;
if (prevItem != null)
{
prevItem.IsSelected = false;
_prevSelectedNode.UserData = prevItem;
}
}
GraphItem item = selectedNode.UserData as GraphItem;
ColorButton.ColorButton nodeButton = new ColorButton.ColorButton();
nodeButton.Text = selectedNode.Id;
nodeButton.Anchor = AnchorStyles.Top;
nodeButton.Tag = item;
_selectedPath = null;
if (item.CurrentPathIndex > 0)
{
DrawingHelper.SelectedPathItemUniqueID = item.QueryItem.Paths[item.CurrentPathIndex - 1].UniqueID;
}
DrawingHelper.SelectedNodeUniqueID = item.UniqueID;
DrawingHelper.isEdgeSelected = false;
//ChangeSelectedFile(nodeButton, null);
if (_pathItemClick != null)
{
_pathItemClick(item.QueryItem.Paths[item.CurrentPathIndex - 1], null);
}
gLocalViewer.Refresh();
gLocalViewer.ResumeLayout();
gLocalViewer.Update();
//_prevSelectedNode = selectedNode;
}
}
private void CreateDynamicHuffmanTree(string text)
{
graph = new Microsoft.Msagl.Drawing.Graph("Huffman Tree");
foreach (char c in text)
{
if (!firstReadOfChar.Contains(c))
{
encodedText += nodeZero.getBit();
firstReadOfChar.Add(c);
HuffmanNode leafNode = new HuffmanNode(1, c, 0);
dynamicMap[c] = leafNode;
HuffmanNode newNode = new HuffmanNode(nodeZero, leafNode, nodeZero.Depth);
EncodeNodeList.Add(leafNode.Depth, leafNode);
EncodeNodeList[newNode.Depth] = newNode;
EncodeNodeList.Add(nodeZero.Depth, nodeZero);
updateGraph(EncodeNodeList);
}
else
{
encodedText += dynamicMap[c].getBit();
dynamicMap[c].Frequency++;
updateGraph(EncodeNodeList);
}
}
textBox5.Text = encodedText;
double compressionRatio = 100.0 - Math.Floor((double)encodedText.Length / (double)(EncodeNodeList[256].Frequency * 8) * 100 * 100) / 100;
this.label6.Text = "Compression Rate: " + compressionRatio.ToString() + "%";
Dtable.Rows.Clear();
createDynamicGraph(EncodeNodeList[256]);
viewer2.Graph = graph;
dataGridView2.Sort(dataGridView2.Columns[3], ListSortDirection.Ascending);
dataGridView2.Update();
viewer2.Update();
}
public void UpdateGraph(Microsoft.Msagl.Drawing.Graph graph)
{
viewer.Graph = graph;
viewer.Update();
}
