public int Compare(object a, object b)
{
ColorWellInfo _a = (ColorWellInfo)a;
ColorWellInfo _b = (ColorWellInfo)b;
return(_a.Distance.CompareTo(_b.Distance));
}
public int Compare(object a, object b)
{
ColorWellInfo _a = (ColorWellInfo)a;
ColorWellInfo _b = (ColorWellInfo)b;
return(_a.Color.GetBrightness().CompareTo(_b.Color.GetBrightness()));
}
public int Compare(object a, object b)
{
ColorWellInfo _a = (ColorWellInfo)a;
ColorWellInfo _b = (ColorWellInfo)b;
return(_a.UnsortedIndex.CompareTo(_b.UnsortedIndex));
}
public int Compare(object a, object b)
{
ColorWellInfo _a = (ColorWellInfo)a;
ColorWellInfo _b = (ColorWellInfo)b;
return(_a.Color.Name.CompareTo(_b.Color.Name));
}
public int Compare(object a, object b)
{
ColorWellInfo _a = (ColorWellInfo)a;
ColorWellInfo _b = (ColorWellInfo)b;
return(_a.Color.GetSaturation().CompareTo(_b.Color.GetSaturation()));
}
private void UpdatePickColor(Color c)
{
pickColor = ColorWellFromColor(c);
if (null == pickColor)
{
pickColor = ColorWellFromColor(defaultColor);
}
}
/// <summary>
/// Generate an array of ColorWellInfo from the supplied array of Color.
/// </summary>
/// <param name="customColors"></param>
/// <param name="colorSortOrder"></param>
/// <returns></returns>
public static ColorWellInfo[] GetCustomColorWells(List <Color> customColors, ColorSortOrder colorSortOrder)
{
int nColors = customColors.Count;
ColorWellInfo[] colorWells = new ColorWellInfo[nColors];
for (int i = 0; i < customColors.Count; i++)
{
colorWells[i] = new ColorWellInfo((Color)customColors[i], i);
}
SortColorWells(colorWells, colorSortOrder);
return(colorWells);
}
/// <summary>
/// Overrides OnMouseLeave in order to detect when the mouse
/// has left the control.
/// </summary>
/// <param name="e"></param>
protected override void OnMouseLeave(System.EventArgs e)
{
base.OnMouseLeave(e);
if (!Enabled)
{
return;
}
ColorWellInfo invalidColor = currentColor;
//currentColor = null;
if (null != invalidColor)
{
Invalidate(invalidColor.ColorPosition);
Update();
}
}
/// <summary>
/// Get the sorted index of the color well (not the original index).
/// </summary>
/// <param name="col"></param>
/// <returns></returns>
private int IndexFromColorWell(ColorWellInfo col)
{
int num_colorWells = colorWells.Length;
int index = -1;
for (int i = 0; i < num_colorWells; i++)
{
if (colorWells[i] == col)
{
index = i;
}
}
return(index);
}
/// <summary>
/// Overrides the OnClick event in order to detect user color selection.
/// </summary>
/// <param name="e"></param>
protected override void OnClick(System.EventArgs e)
{
base.OnClick(e);
if (null != currentColor)
{
// invalidate previous pick color
if (null != pickColor)
{
Invalidate(pickColor.ColorPosition);
}
// set new pick color
pickColor = currentColor;
// invalidate new pick color
Invalidate(pickColor.ColorPosition);
FireColorChanged();
}
}
/// <summary>
/// Overrides the OnMouseMove event in order to track mouse movement.
/// </summary>
/// <param name="e"></param>
protected override void OnMouseMove(System.Windows.Forms.MouseEventArgs e)
{
base.OnMouseMove(e);
if (!Enabled)
{
return;
}
Point mousePosition = new Point(e.X, e.Y);
// Invalidation causes an OnMouseMove event - filter it out so it doesn't
// interfere with keyboard control
if (ClientRectangle.Contains(mousePosition) && (lastMousePosition != mousePosition))
{
lastMousePosition = mousePosition;
ColorWellInfo newColor = ColorWellFromPoint(e.X, e.Y);
ChangeColor(newColor);
}
}
/// <summary>
/// Get the first color well with the specified color.
/// There may be multiple color wells with the same color for custom color palettes.
/// Note that Color.White != Color.Window even when Color.Window is white!
/// </summary>
/// <param name="col"></param>
/// <returns></returns>
private ColorWellInfo ColorWellFromColor(Color col)
{
if (col == Color.Empty)
{
ColorWellInfo cwi = new ColorWellInfo(Color.Empty, 0);
}
else
{
foreach (ColorWellInfo c in colorWells)
{
if (c.Color == col)
{
return(c);
}
}
}
return(null);
}
/// <summary>
/// Change the color currently selected. Does not cause a ColorChanged event.
/// </summary>
/// <param name="newColor"></param>
private void ChangeColor(ColorWellInfo newColor)
{
if (newColor != currentColor)
{
if (null != currentColor)
{
Invalidate(currentColor.ColorPosition);
}
currentColor = newColor;
if (null != currentColor)
{
Invalidate(currentColor.ColorPosition);
toolTip.SetToolTip(this, currentColor.ColorName);
}
else
{
toolTip.SetToolTip(this, "");
}
Update();
}
}
/// <summary>
/// This method return an array of colorWells that belong to the desired ColorSet and
/// that have been sorted in the desired ColorSortOrder.
/// </summary>
/// <param name="colorSet">The color palette to be generated.</param>
/// <param name="colorSortOrder">The order the generated palette should be sorted.</param>
/// <returns></returns>
public static ColorWellInfo[] GetColorWells(ColorSet colorSet, ColorSortOrder colorSortOrder)
{
// get array of desired colorWells and sort
// Could have sort order enum/property
Array knownColors = Enum.GetValues(typeof(System.Drawing.KnownColor));
int nColors = 0;
// How many colors are there?
switch (colorSet)
{
case ColorSet.Web:
case ColorSet.Continues:
nColors = 216;
break;
case ColorSet.System:
foreach (KnownColor k in knownColors)
{
Color c = Color.FromKnownColor(k);
if (c.IsSystemColor && (c.A > 0))
{
nColors++;
}
}
break;
}
ColorWellInfo[] colorWells = new ColorWellInfo[nColors];
int index = 0;
int r = 0, g = 0, b = 0, i = 0;
// Get the colors
switch (colorSet)
{
case ColorSet.Continues:
int[] ContR = new int[] { 0xCC, 0x66, 0x00, 0xFF, 0x99, 0x33 };
int[] ContG = new int[] { 0xFF, 0xCC, 0x99, 0x66, 0x33, 0x00, 0x00, 0x33, 0x66, 0x99, 0xCC, 0xFF };
int[] ContB = new int[] { 0xFF, 0xCC, 0x99, 0x66, 0x33, 0x00, 0x00, 0x33, 0x66, 0x99, 0xCC, 0xFF, 0xFF, 0xCC, 0x99, 0x66, 0x33, 0x00 };
for (int y = 0; y < 12; y++)
{
g = ContG[y];
for (int x = 0; x < 18; x++)
{
r = ContR[(x / 6) + ((y < 6) ? 0 : 3)];
b = ContB[x];
colorWells[i++] = new ColorWellInfo(Color.FromArgb(r, g, b), i);
}
}
break;
case ColorSet.Web:
int[] WebSafe = new int[] { 0x00, 0x33, 0x66, 0x99, 0xCC, 0xFF };
for (int y = 0; y < 12; y++)
{
b = WebSafe[y % 6];
for (int x = 0; x < 18; x++)
{
g = WebSafe[x % 6];
r = (y < 6) ? WebSafe[x / 6] : WebSafe[(x / 6) + 3];
colorWells[i++] = new ColorWellInfo(Color.FromArgb(r, g, b), i);
}
}
break;
case ColorSet.System:
foreach (KnownColor k in knownColors)
{
Color c = Color.FromKnownColor(k);
if (c.IsSystemColor && (c.A > 0))
{
colorWells[index] = new ColorWellInfo(c, index);
index++;
}
}
break;
}
SortColorWells(colorWells, colorSortOrder);
return(colorWells);
}
/// <summary>
/// Draws the ColorWell on the Graphics surface.
/// </summary>
/// <remarks>
/// This method draws the ColorWell as either enabled or disabled.
/// It also indicates the currently selected color and the color
/// that is ready to chosed (picked) by the mouse or keyboard.
/// </remarks>
/// <param name="g">Graphics object.</param>
/// <param name="enabled">Enable appearance</param>
/// <param name="selected">Selected appearance.</param>
/// <param name="pickColor">Color used.</param>
/// <param name="cwi">ColorWellInfo object.</param>
public static void DrawColorWell(System.Drawing.Graphics g, bool enabled, bool selected, bool pickColor, ColorWellInfo cwi)
{
Rectangle r = cwi.ColorPosition;
if (!enabled)
{
r.Inflate(-SystemInformation.BorderSize.Width, -SystemInformation.BorderSize.Height);
ControlPaint.DrawBorder3D(g, r, Border3DStyle.Flat);
r.Inflate(-SystemInformation.BorderSize.Width, -SystemInformation.BorderSize.Height);
g.FillRectangle(SystemBrushes.Control, r);
}
else
{
SolidBrush br = new SolidBrush(cwi.Color);
if (pickColor)
{
ControlPaint.DrawBorder3D(g, r, Border3DStyle.Sunken);
r.Inflate(-SystemInformation.Border3DSize.Width, -SystemInformation.Border3DSize.Height);
g.FillRectangle(br, r);
}
else
{
if (selected)
{
ControlPaint.DrawBorder3D(g, r, Border3DStyle.Raised);
r.Inflate(-SystemInformation.Border3DSize.Width, -SystemInformation.Border3DSize.Height);
g.FillRectangle(br, r);
}
else
{
g.FillRectangle(SystemBrushes.Control, r);
r.Inflate(-SystemInformation.BorderSize.Width, -SystemInformation.BorderSize.Height);
ControlPaint.DrawBorder3D(g, r, Border3DStyle.Flat);
r.Inflate(-SystemInformation.BorderSize.Width, -SystemInformation.BorderSize.Height);
g.FillRectangle(br, r);
}
}
br.Dispose();
br = null;
}
}
/// <summary>
/// Overrides OnKeyDown so that a color may be selected using the keyboard.<br></br><br></br>
/// Use the keys - Left, Right, Up, Down and Enter.
/// </summary>
/// <param name="e"></param>
protected override void OnKeyDown(System.Windows.Forms.KeyEventArgs e)
{
base.OnKeyDown(e);
if (!Enabled)
{
return;
}
int index = IndexFromColorWell((null != currentColor) ? (currentColor) : (pickColor));
switch (e.KeyCode)
{
case Keys.Enter:
if (null != currentColor)
{
ColorWellInfo oldColor = pickColor;
pickColor = currentColor;
FireColorChanged();
Invalidate(oldColor.ColorPosition);
Invalidate(currentColor.ColorPosition);
Update();
}
break;
case Keys.Left:
if (index < 0)
{
// start at the last color
ChangeColor(colorWells[colorWells.Length - 1]);
}
else
{
MoveColumn(index, false);
}
break;
case Keys.Right:
if (index < 0 || index > (colorWells.Length - 1))
{
// start at the first color
ChangeColor(colorWells[0]);
}
else
{
MoveColumn(index, true);
}
break;
case Keys.Down:
if (index < 0)
{
// start at the first color
ChangeColor(colorWells[0]);
}
else
{
MoveRow(index, true);
}
break;
case Keys.Up:
if (index < 0)
{
// start at the last color
ChangeColor(colorWells[colorWells.Length - 1]);
}
else
{
MoveRow(index, false);
}
break;
}
}