protected void DrawCheckOnly(PaintEventArgs e, LayoutData layout, Color checkColor, Color checkBackground, bool disabledColors)
{
if (!Control.Checked)
{
return;
}
if (!Control.Enabled && disabledColors)
{
checkColor = SystemColors.ControlDark;
}
double scale = GetDpiScaleRatio();
using var hdc = new DeviceContextHdcScope(e);
using var brush = new Gdi32.CreateBrushScope(checkColor);
// Circle drawing doesn't work at this size
int offset = 5;
Rectangle vCross = new Rectangle(
layout.checkBounds.X + GetScaledNumber(offset, scale),
layout.checkBounds.Y + GetScaledNumber(offset - 1, scale),
GetScaledNumber(2, scale),
GetScaledNumber(4, scale));
hdc.FillRectangle(vCross, brush);
Rectangle hCross = new Rectangle(
layout.checkBounds.X + GetScaledNumber(offset - 1, scale),
layout.checkBounds.Y + GetScaledNumber(offset, scale),
GetScaledNumber(4, scale), GetScaledNumber(2, scale));
hdc.FillRectangle(hCross, brush);
}
private void PaintThemedButtonBackground(PaintEventArgs e, Rectangle bounds, bool up)
{
PushButtonState pbState = DetermineState(up);
// First handle transparent case
if (ButtonRenderer.IsBackgroundPartiallyTransparent(pbState))
{
ButtonRenderer.DrawParentBackground(e, bounds, Control);
}
ButtonRenderer.DrawButtonForHandle(
e,
Control.ClientRectangle,
false,
pbState,
DpiHelper.IsScalingRequirementMet ? Control.HandleInternal : IntPtr.Zero);
// Now overlay the background image or backcolor (the former overrides the latter), leaving a margin.
// We hardcode this margin for now since GetThemeMargins returns 0 all the time.
//
// Changing this because GetThemeMargins simply does not work in some cases.
bounds.Inflate(-ButtonBorderSize, -ButtonBorderSize);
//only paint if the user said not to use the themed backcolor.
if (!Control.UseVisualStyleBackColor)
{
bool isHighContrastHighlighted = up && IsHighContrastHighlighted();
Color color = isHighContrastHighlighted ? SystemColors.Highlight : Control.BackColor;
if (color.HasTransparency())
{
using Brush brush = new SolidBrush(color);
e.GraphicsInternal.FillRectangle(brush, bounds);
}
else
{
using var hdc = new DeviceContextHdcScope(e);
hdc.FillRectangle(
bounds,
isHighContrastHighlighted
? User32.GetSysColorBrush(ColorTranslator.ToOle(color) & 0xFF)
: Control.BackColorBrush);
}
}
// This code is mostly taken from the non-themed rendering code path.
if (Control.BackgroundImage != null && !DisplayInformation.HighContrast)
{
ControlPaint.DrawBackgroundImage(
e.GraphicsInternal,
Control.BackgroundImage,
Color.Transparent,
Control.BackgroundImageLayout,
Control.ClientRectangle,
bounds,
Control.DisplayRectangle.Location,
Control.RightToLeft);
}
}
protected void DrawCheckFlat(
PaintEventArgs e,
LayoutData layout,
Color checkColor,
Color checkBackground,
Color checkBorder,
ColorData colors)
{
Rectangle bounds = layout.CheckBounds;
// Removed subtracting one for Width and Height. In Everett we needed to do this,
// since we were using GDI+ to draw the border. Now that we are using GDI,
// we should not do before drawing the border.
if (!layout.Options.DotNetOneButtonCompat)
{
bounds.Width--;
bounds.Height--;
}
using (var hdc = new DeviceContextHdcScope(e))
{
using var hpen = new Gdi32.CreatePenScope(checkBorder);
hdc.DrawRectangle(bounds, hpen);
// Now subtract, since the rest of the code is like Everett.
if (layout.Options.DotNetOneButtonCompat)
{
bounds.Width--;
bounds.Height--;
}
bounds.Inflate(-1, -1);
}
if (Control.CheckState == CheckState.Indeterminate)
{
bounds.Width++;
bounds.Height++;
DrawDitheredFill(e.Graphics, colors.ButtonFace, checkBackground, bounds);
}
else
{
using var hdc = new DeviceContextHdcScope(e);
using var hbrush = new Gdi32.CreateBrushScope(checkBackground);
// Even though we are using GDI here as opposed to GDI+ in Everett, we still need to add 1.
bounds.Width++;
bounds.Height++;
hdc.FillRectangle(bounds, hbrush);
}
DrawCheckOnly(e, layout, colors, checkColor);
}