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public class TableView : Panel
{
public class TableCell : Panel
{
protected Label m_cellText;
protected PictureBox m_picture;
protected Boolean m_selected;
protected System.Drawing.Color m_backGroundColor, m_foreGroundColor;
public Boolean Selected
{
get
{
return m_selected;
}
set
{
m_selected = value;
if (value) // TableCell was selected
{
m_cellText.BackColor = System.Drawing.Color.DarkBlue;
m_cellText.ForeColor = System.Drawing.Color.White;
}
else // TableCell was deselected
{
m_cellText.BackColor = m_backGroundColor;
m_cellText.ForeColor = m_foreGroundColor;
}
}
}
public System.Drawing.Font CellFont
{
get
{
return m_cellText.Font;
}
set
{
m_cellText.Font = value;
}
}
public System.Drawing.Size CellTextSize
{
get
{
if (this.TopLevelControl != null)
{
System.Drawing.Graphics g = this.TopLevelControl.CreateGraphics();
System.Drawing.Size actCellTextSize = g.MeasureString(m_cellText.Text, this.CellFont).ToSize();
g.Dispose();
return actCellTextSize;
}
else
return m_cellText.Size;
}
}
public TableCell(string cellText)
{
m_cellText = new Label();
m_cellText.Text = cellText;
this.Controls.Add(m_cellText);
this.Controls.Add(m_picture);
m_selected = false;
m_cellText.Font = new System.Drawing.Font("Arial", 8.0f, System.Drawing.FontStyle.Bold);
}
protected override void OnResize(EventArgs e)
{
base.OnResize(e);
if (m_picture != null)
{
m_picture.Left = 0;
m_picture.Width = m_picture.Image.Width;
m_picture.Height = m_picture.Image.Height;
m_cellText.Left = m_picture.Width + 2;
m_cellText.Width = this.Width - m_picture.Width - 2;
}
else
{
m_cellText.Left = 0;
m_cellText.Width = this.Width;
m_cellText.Height = this.Height;
}
}
public void changeBackColor(System.Drawing.Color newBackColor)
{
this.BackColor = newBackColor;
m_backGroundColor = newBackColor;
m_cellText.BackColor = this.BackColor;
if (m_picture != null)
m_picture.BackColor = this.BackColor;
}
public override string Text
{
get
{
return m_cellText.Text;
}
set
{
m_cellText.Text = value;
}
}
}
protected int m_cellHeight = 20;
protected Panel m_table;
protected TableCell[] m_cells;
protected string[] m_wordlist;
protected int m_maxRows;
protected int m_rows, m_columns;
protected bool m_isScrolling;
protected Timer m_ScrollTimer;
public int numberOfColumns
{
get
{
return m_columns;
}
set
{
m_columns = value;
initTableView();
}
}
public int numberOfRows
{
get
{
return m_rows;
}
set
{
m_rows = value;
initTableView();
}
}
public TableCell[] Items
{
get
{
return m_cells;
}
}
public TableCell this[int i]
{
get
{
return m_cells[i];
}
set
{
m_cells[i] = value;
}
}
public System.Collections.IEnumerator GetEnumerator()
{
return m_cells.GetEnumerator();
}
public System.Drawing.Font CellFont
{
get
{
return m_cells[0].CellFont;
}
set
{
for (int i = 0; i < m_cells.Length; i++)
{
m_cells[i].CellFont = value;
}
OnResize(System.EventArgs.Empty);
this.Refresh();
}
}
public void select(int i)
{
m_cells[i].Selected = true;
}
public void deselect(int i)
{
m_cells[i].Selected = false;
}
public TableView()
{
m_wordlist = new string[] { "test1", "test2", "test3", "test4", "test5", "test6", "test7", "test8", "test9", "test10", "test11" };
m_columns = 4;
m_rows = 4;
m_table = new Panel();
this.Controls.Add(m_table);
loadWordList(m_wordlist);
}
public TableView(String[] wordlist)
{
m_columns = 4;
m_rows = 4;
m_table = new Panel();
this.Controls.Add(m_table);
loadWordList(wordlist);
}
public TableView(string[] words, int columns, int rows)
{
m_columns = columns;
m_maxRows = (words.Length / columns)
+ (((double)words.Length / (double)columns) > (words.Length / columns)
? 1
: 0);
m_rows = rows;
m_table = new Panel();
loadWordList(words);
}
public void loadWordList(string[] wordlist)
{
m_wordlist = wordlist;
m_table.Controls.Clear();
m_cells = new TableCell[wordlist.Length];
for (int i = 0; i < m_cells.Length; i++)
{
m_cells[i] = new TableCell((i + 1).ToString() + " " + m_wordlist[i]);
m_cells[i].Tag = m_wordlist[i];
m_table.Controls.Add(m_cells[i]);
m_cells[i].changeBackColor(this.BackColor);
}
initTableView();
}
protected void initTableView()
{
m_maxRows = (m_wordlist.Length / m_columns)
+ (((double)m_wordlist.Length / (double)m_columns) > (m_wordlist.Length / m_columns)
? 1
: 0);
OnResize(System.EventArgs.Empty);
}
protected override void OnResize(EventArgs e)
{
base.OnResize(e);
SuspendLayout();
m_table.Width = this.Width;
//CellHeight and -Width calculation including change of number of columns
m_cellHeight = 0;
int cellWidth = 0;
System.Drawing.Size actSize = new System.Drawing.Size();
for (int i = 0; i < m_cells.Length; i++)
{
actSize = m_cells[i].CellTextSize;
m_cellHeight = (actSize.Height + 2 > m_cellHeight) ? actSize.Height + 2 : m_cellHeight;
cellWidth = (actSize.Width + 4 > cellWidth) ? actSize.Width + 2 : cellWidth;
}
m_columns = (this.Width / cellWidth > 0) ? this.Width / cellWidth : 3;
m_maxRows = (m_wordlist.Length / m_columns)
+ (((double)m_wordlist.Length / (double)m_columns) > (m_wordlist.Length / m_columns)
? 1
: 0);
m_table.Height = m_cellHeight * m_maxRows;
//Change of Cellwidth and -height
for (int i = 0; i < m_cells.Length; i++)
{
m_cells[i].Width = this.Width / m_columns;
m_cells[i].Height = m_cellHeight;
m_cells[i].Left = (i % m_columns) * m_cells[i].Width;
m_cells[i].Top = (i / m_columns) * m_cells[i].Height;
}
m_table.Top = 0;
ResumeLayout();
}
public void ChangeBackColor(System.Drawing.Color newBackColor)
{
this.BackColor = newBackColor;
m_table.BackColor = this.BackColor;
foreach (TableCell tc in m_cells)
tc.changeBackColor(this.BackColor);
}
public void scrollTo(object rowObject)
{
int row = (int)rowObject;
int actualRow = getTopRowNumber();
if (actualRow != row)
{
int steps = 10;
int actualTop = m_table.Top;
int topDifference = (actualRow - row) * m_cellHeight;
for (int i = 1; i < steps; i++)
{
m_table.Top = actualTop + (int)((double)topDifference / (double)steps * (double)i);
this.Refresh();
System.Threading.Thread.Sleep(20);
}
m_table.Top = actualTop + topDifference;
}
m_isScrolling = false;
}
public void scrollToAsync(int row)
{
while (m_isScrolling) ;
m_isScrolling = true;
}
public int getTopRowNumber()
{
return -m_table.Top / m_cellHeight;
}
public int getRowOfItem(int i)
{
return i / m_columns;
}
}
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