protected override void OnRenderButtonBackground(ToolStripItemRenderEventArgs e)
{
var bgColour = Color.Empty;
var borderColour = Color.Empty;
var itemRect = new Rectangle(0, 0, e.Item.Width - 1, e.Item.Height - 1);
if (e.Item.Pressed)
{
bgColour = this.buttonPressedBackColour;
borderColour = this.buttonPressedBorderColour;
}
else if (e.Item.Selected)
{
bgColour = this.buttonSelectedBackColour;
borderColour = this.buttonSelectedBorderColour;
}
else if (IsItemChecked(e.Item))
{
bgColour = ColourUtils.Blend(e.ToolStrip.BackColor, this.buttonSelectedBackColour, .125f);
borderColour = this.buttonSelectedBorderColour;
}
if (bgColour.IsEmpty == false)
{
using (var brush = new SolidBrush(bgColour))
{
using (var pen = new Pen(borderColour))
{
e.Graphics.FillRectangle(brush, itemRect);
e.Graphics.DrawRectangle(pen, itemRect);
}
}
}
}
protected override void OnBackColorChanged(EventArgs e)
{
base.OnBackColorChanged(e);
for (var i = 0; i < this.captionBtns.Length; i++)
{
if (i == BTN_CLOSE)
{
this.captionBtns[i].BackColor = ColourUtils.Blend(this.BackColor, Color.Red, .125f);
}
else
{
this.captionBtns[i].BackColor = ColourUtils.Blend(this.BackColor, Color.White, .75f);
}
}
UpdateForeColour();
if (DesignMode == false && this.ParentForm != null && this.ParentForm.Handle != null)
{
IntPtr hwnd = this.ParentForm.Handle;
using (var g = Graphics.FromHwnd(hwnd))
{
DrawParentFrame(g, hwnd);
}
}
}
protected override void OnPaintBackground(PaintEventArgs e)
{
var rect = this.ClientRectangle;
e.Graphics.FillRectangle(SystemBrushes.Window, rect);
if (this.Dock == DockStyle.Left || this.Dock == DockStyle.Right)
{
rect.X += rect.Width / 2;
rect.Width = 1;
}
else if (this.Dock == DockStyle.Top || this.Dock == DockStyle.Bottom)
{
rect.Y += rect.Height / 2;
rect.Height = 1;
}
else
{
return;
}
var barColour = ColourUtils.Blend(SystemColors.Window, SystemColors.ButtonFace, .5f);
using (var br = new SolidBrush(barColour))
{
e.Graphics.FillRectangle(br, rect);
}
}
Color CalculateShadowColour(Color colour)
{
Color backColour = this.BackColor;
if (backColour.IsEmpty)
{
backColour = this.Parent.BackColor;
}
colour = colour.GetBrightness() > .5f ? Color.Black : Color.White;
return(ColourUtils.Blend(colour, backColour, .5f));
}
void UpdateForeColour(bool active)
{
var brightness = this.BackColor.GetBrightness();
var foreColourBase = ColourUtils.IsDark(this.BackColor) ? Color.White : Color.Black;
if (active)
{
this.foreColour = foreColourBase;
}
else
{
this.foreColour = ColourUtils.Blend(this.BackColor, foreColourBase, .25f);
}
this.titleLabel.ForeColor = this.foreColour;
this.captionStrip.ForeColor = this.foreColour;
OnForeColorChanged(EventArgs.Empty);
}
protected override void OnRenderButtonBackground(ToolStripItemRenderEventArgs e)
{
Color colour;
if (e.Item.Pressed)
{
colour = ColourUtils.Blend(e.Item.BackColor, Color.Black, .6f);
}
else if (e.Item.Selected)
{
colour = e.Item.BackColor;
}
else
{
return;
}
using (var br = new SolidBrush(colour))
{
e.Graphics.FillRectangle(br, new Rectangle(Point.Empty, e.Item.Size));
}
}
