MS Office Style Color Picker Dialog

"Pink", "Gold", "Yellow", "Bright Green", "Turquoise", "Sky Blue","Plum", "Gray-25%","Rose", "Tan", "Light Yellow", "Light Green", "Light Turquoise", "Pale Blue", "Lavender", "White"
};
Button moreColorsButton = new Button();
Button cancelButton = new Button();
Color selectedColor;
public ColorPaletteDialog(int x, int y)
{
Size = new Size(158, 132);
FormBorderStyle = FormBorderStyle.FixedDialog;
MinimizeBox = MaximizeBox = ControlBox = false;
ShowInTaskbar = false;
CenterToScreen();
Location = new Point(x, y);
BuildPalette();
moreColorsButton.Text = "More colors ...";
moreColorsButton.Size = new Size(142, 22);
moreColorsButton.Location = new Point(5, 99);
moreColorsButton.Click += new EventHandler(moreColorsButton_Click);
moreColorsButton.FlatStyle = FlatStyle.Popup;
Controls.Add(moreColorsButton);
//"invisible" button to cancel at Escape
cancelButton.Size = new Size(5, 5);
cancelButton.Location = new Point(-10, -10);
cancelButton.Click += new EventHandler(cancelButton_Click);
Controls.Add(cancelButton);
cancelButton.TabIndex = 0;
this.CancelButton = cancelButton;
}
public Color Color
{
get {return selectedColor;}
}
void BuildPalette()
{
byte pwidth = 16;
byte pheight = 16;
byte pdistance = 2;
byte border = 5;
int x = border, y = border;
ToolTip toolTip = new ToolTip();
for(int i = 0; i < max; i++)
{
panel[i] = new Panel();
panel[i].Height = pwidth;
panel[i].Width = pheight;
panel[i].Location = new Point(x, y);
toolTip.SetToolTip(panel[i], colorName[i]);
this.Controls.Add(panel[i]);
if(x < ( 7 * (pwidth + pdistance)))
x += pwidth + pdistance;
else
{
x = border;
y += pheight + pdistance;
}
panel[i].BackColor = color[i];
panel[i].MouseEnter += new EventHandler(OnMouseEnterPanel);
panel[i].MouseLeave += new EventHandler(OnMouseLeavePanel);
panel[i].MouseDown += new MouseEventHandler(OnMouseDownPanel);
panel[i].MouseUp += new MouseEventHandler(OnMouseUpPanel);
panel[i].Paint += new PaintEventHandler(OnPanelPaint);
}}

void moreColorsButton_Click(object sender, System.EventArgs e)
{
ColorDialog colDialog = new ColorDialog();
colDialog.FullOpen = true;
colDialog.ShowDialog();
selectedColor = colDialog.Color;
colDialog.Dispose();
Close();
}
void cancelButton_Click(object sender, System.EventArgs e)
{
Close();
}
void OnMouseEnterPanel(object sender, EventArgs e)
{
DrawPanel(sender, 1);
}
void OnMouseLeavePanel(object sender, EventArgs e)
{
DrawPanel(sender, 0);
}
void OnMouseDownPanel(object sender, MouseEventArgs e)
{
DrawPanel(sender, 2);
}
void OnMouseUpPanel(object sender, MouseEventArgs e)
{
Panel panel = (Panel)sender;
selectedColor = panel.BackColor;
Close();
}
void DrawPanel(object sender, byte state)
{
Panel panel = (Panel)sender;
Graphics g = panel.CreateGraphics();
Pen pen1, pen2;
if(state == 1) //mouse over
{
pen1 = new Pen( SystemColors.ControlLightLight );
pen2 = new Pen( SystemColors. ControlDarkDark);
}
else if(state == 2) //clicked
{
pen1 = new Pen( SystemColors.ControlDarkDark );
pen2 = new Pen( SystemColors.ControlLightLight );
}
else //neutral
{
pen1 = new Pen( SystemColors.ControlDark );
pen2 = new Pen( SystemColors.ControlDark );
}
Rectangle r = panel.ClientRectangle;
Point p1 = new Point( r.Left, r.Top ); //top left
Point p2 = new Point( r.Right -1, r.Top ); //top right
Point p3 = new Point( r.Left, r.Bottom -1 ); //bottom left
Point p4 = new Point( r.Right -1, r.Bottom -1 ); //bottom right
g.DrawLine( pen1, p1, p2 );
g.DrawLine( pen1, p1, p3 );
g.DrawLine( pen2, p2, p4 );
g.DrawLine( pen2, p3, p4 );
}
void OnPanelPaint(Object sender, PaintEventArgs e)
{
DrawPanel(sender, 0);
}
}