private void FormDefine()
{
Me.Caption = Application.ProductName;
Me.ShowCaptionBarColor = false;
Me.EnableCaptionBarTransparent = false;
Me.Theme = Theme.Black;
Me.ThemeColor = ColorManipulation.GetRandomColorX();
Me.Loading += Me_Loading;
Me.Loaded += Me_Loaded;
Me.Closed += Me_Closed;
Me.Resize += Me_Resize;
Me.SizeChanged += Me_SizeChanged;
Me.ThemeChanged += Me_ThemeChanged;
Me.ThemeColorChanged += Me_ThemeChanged;
}
private void _UpdateTrackBarImage()
{
if (_TrackBarImage != null)
{
_TrackBarImage.Dispose();
}
RectangleF wholeBounds = _WholeBounds;
RectangleF trackBarBounds = _TrackBarBounds;
_TrackBarImage = new Bitmap(Math.Max(1, (int)wholeBounds.Width), Math.Max(1, (int)wholeBounds.Height));
using (Graphics Grap = Graphics.FromImage(_TrackBarImage))
{
Color meaningfulBackColor = _MeaningfulBackColor;
//
Grap.SmoothingMode = SmoothingMode.AntiAlias;
Grap.Clear(meaningfulBackColor);
//
int ColorNum = (_Colors == null ? 0 : _Colors.Length);
//
RectangleF BarImgBounds = new RectangleF(trackBarBounds.Location, new SizeF(Math.Max(1, trackBarBounds.Width), Math.Max(1, trackBarBounds.Height)));
//
Color BarBorderColor = ColorManipulation.ShiftLightnessByHSL(meaningfulBackColor, -0.3);
using (Pen Pn = new Pen(Color.FromArgb(64, BarBorderColor), 2))
{
Grap.DrawRectangles(Pn, new RectangleF[] { new RectangleF(new PointF(BarImgBounds.X - 1, BarImgBounds.Y - 1), new SizeF(BarImgBounds.Width + 2, BarImgBounds.Height + 2)) });
}
using (Pen Pn = new Pen(Color.FromArgb(128, BarBorderColor), 2))
{
Grap.DrawRectangles(Pn, new RectangleF[] { BarImgBounds });
}
using (Brush Br = new SolidBrush(meaningfulBackColor))
{
Grap.FillRectangle(Br, BarImgBounds);
}
//
if (ColorNum > 0)
{
if (ColorNum == 1)
{
using (SolidBrush Br = new SolidBrush(_Colors[0]))
{
Grap.FillRectangle(Br, BarImgBounds);
}
}
else
{
SizeF SubImgSize = new SizeF(BarImgBounds.Width / (ColorNum - 1) + 0.5F, BarImgBounds.Height);
for (int i = 1; i < ColorNum; i++)
{
RectangleF SubImgBounds = new RectangleF(new PointF(BarImgBounds.X + BarImgBounds.Width * (i - 1) / (ColorNum - 1), BarImgBounds.Y), SubImgSize);
using (LinearGradientBrush Br = new LinearGradientBrush(new PointF(SubImgBounds.Left - 0.5F, SubImgBounds.Top), new PointF(SubImgBounds.Right + 0.5F, SubImgBounds.Top), _Colors[i - 1], _Colors[i]))
{
Grap.FillRectangle(Br, SubImgBounds);
}
}
}
}
//
if (Geometry.CursorIsInControl(Panel_Main) || _MousePressed)
{
using (Brush Br = new SolidBrush(Color.FromArgb(64, Color.White)))
{
Grap.FillRectangle(Br, BarImgBounds);
}
}
//
Color SliderBorderColor = ColorManipulation.ShiftLightnessByHSL(meaningfulBackColor, -0.6);
Color SliderColor;
if (ColorNum > 0)
{
if (ColorNum == 1)
{
SliderColor = _Colors[0];
}
else
{
double Pct = (_Value - _Minimum) / (_Maximum - _Minimum);
int ColorIndex = (int)Math.Ceiling(Pct * (ColorNum - 1));
if (ColorIndex == 0)
{
ColorIndex = 1;
}
double SubPct = (double)(ColorIndex - 1) / (ColorNum - 1);
double Prop = (Pct - SubPct) * (ColorNum - 1);
SliderColor = ColorManipulation.BlendByRGB(_Colors[ColorIndex], _Colors[ColorIndex - 1], Prop);
}
}
else
{
SliderColor = meaningfulBackColor;
}
SliderColor = ColorManipulation.ShiftLightnessByHSL(SliderColor, +0.6);
float SliderX = (_Minimum == _Maximum ? trackBarBounds.X : (float)(trackBarBounds.X + (_Value - _Minimum) / (_Maximum - _Minimum) * trackBarBounds.Width));
float SliderHeight = 0.2F * wholeBounds.Height;
PointF[] PolygonTop = new PointF[] {
new PointF(SliderX, wholeBounds.Y + 1 + SliderHeight),
new PointF(SliderX - SliderHeight, wholeBounds.Y + 1),
new PointF(SliderX + SliderHeight, wholeBounds.Y + 1)
};
PointF[] PolygonBottom = new PointF[] {
new PointF(SliderX, wholeBounds.Bottom - 1 - SliderHeight),
new PointF(SliderX - SliderHeight, wholeBounds.Bottom - 1),
new PointF(SliderX + SliderHeight, wholeBounds.Bottom - 1)
};
using (Pen Pn = new Pen(Color.FromArgb(128, SliderBorderColor), 3))
{
Grap.DrawLine(Pn, new PointF(SliderX, trackBarBounds.Y), new PointF(SliderX, trackBarBounds.Bottom));
}
using (Pen Pn = new Pen(Color.FromArgb(128, SliderBorderColor), 2))
{
Grap.DrawPolygon(Pn, PolygonTop);
Grap.DrawPolygon(Pn, PolygonBottom);
}
using (Pen Pn = new Pen(SliderColor, 1))
{
Grap.DrawLine(Pn, new PointF(SliderX, trackBarBounds.Y), new PointF(SliderX, trackBarBounds.Bottom));
}
using (Brush Br = new SolidBrush(SliderColor))
{
Grap.FillPolygon(Br, PolygonTop);
Grap.FillPolygon(Br, PolygonBottom);
}
}
}