public void AddColorItem(ColorItem item, bool needRefresh)
{
if (needRefresh)
{
item.Position = 0.5f;
}
_colorItems.Insert(1, item);
if (needRefresh)
{
ReCreateBrush();
}
}
protected override void OnMouseMove(MouseEventArgs e)
{
if (_isDraging && _selectedColorItem != null)
{
if (e.X <= 0 || e.X >= ClientSize.Width)
{
return;
}
_selectedColorItem.Position = e.X / (float)Width;
AdjustOrderOfColorItems();
ReCreateBrush();
if (OnMoveColorBarHandler != null)
{
string vstring = string.Empty;
if (MaxValue > MinValue)
{
int span = MaxValue - MinValue;
float pixelPerSpan = span / (float)Width;
int v = (int)(e.X * pixelPerSpan);
vstring = v.ToString();
}
OnMoveColorBarHandler(this, vstring, _bitmap.GetPixel(e.X, Height / 2));
}
return;
}
if (_colorItems == null || _colorItems.Count == 0)
{
return;
}
foreach (ColorItem it in _colorItems)
{
if (it.Bounds == null)
{
continue;
}
if (it.Bounds.IsVisible(e.Location))
{
_selectedColorItem = it;
Invalidate();
return;
}
}
_selectedColorItem = null;
Invalidate();
}
protected override void OnPaint(PaintEventArgs e)
{
if (_brush == null)
{
return;
}
_bitmap = new Bitmap(ClientSize.Width, ClientSize.Height);
using (Graphics g = Graphics.FromImage(_bitmap))
{
g.FillRectangle(_brush, 0, barTopBank + barMaxHeight, Width, Height - 2 * barTopBank - 30);
if (IsDrawScales)
{
if (MaxValue > MinValue)
{
int span = MaxValue - MinValue;
float pixelPerSpan = span / (float)Width;
int pixelSpan = 40;
int beginX = 0;
float v = MinValue;
g.DrawLine(Pens.Blue, 0, Height - 6, Width, Height - 6);
while (beginX < Width)
{
g.DrawLine(Pens.Blue, beginX, Height - 6, beginX, Height - 12);
int intv = (int)v;
g.DrawString(intv.ToString(), Font, Brushes.Blue, beginX, Height - 17);
beginX += pixelSpan;
v += (pixelSpan * pixelPerSpan);
}
}
}
}
e.Graphics.DrawImage(_bitmap, 0, 0);
if (_colorItems.Count == 0)
{
return;
}
if (_colorItems.Count < 3)
{
return;
}
for (int i = 1; i < _colorItems.Count - 1; i++)
{
ColorItem it = _colorItems[i];
int x = (int)(Width * it.Position);
it.X = x;
GraphicsPath path = new GraphicsPath();
path.AddLine(x - barHalfWidth, barTopBank, x + barHalfWidth, barTopBank);
path.AddLine(x + barHalfWidth, barTopBank, x + barHalfWidth, barTopBank + barMinHeight);
path.AddLine(x + barHalfWidth, barTopBank + barMinHeight, x, barTopBank + barMaxHeight);
path.AddLine(x, barTopBank + barMaxHeight, x - barHalfWidth, barTopBank + barMinHeight);
path.AddLine(x - barHalfWidth, barTopBank + barMinHeight, x - barHalfWidth, barTopBank);
it.Bounds = path;
if (_selectedColorItem != null && it.Equals(_selectedColorItem))
{
e.Graphics.FillPath(Brushes.Red, path);
e.Graphics.DrawPath(Pens.Black, path);
}
else
{
e.Graphics.FillPath(Brushes.LightSkyBlue, path);
e.Graphics.DrawPath(Pens.Black, path);
}
}
}
public void AddColorItem(ColorItem item)
{
ucLinearColorRampEditor1.AddColorItem(item);
}
public void AddColorItem(ColorItem item)
{
ucColorPanel1.AddColorItem(item, true);
}
private void btnInsertColor_Click(object sender, EventArgs e)
{
ColorItem item = new ColorItem(0f, txtColor.BackColor);
ucColorPanel1.AddColorItem(item, true);
}