protected override LayoutOptions Layout(PaintEventArgs e)
{
LayoutOptions layout = CommonLayout();
layout.checkPaddingSize = 1;
layout.everettButtonCompat = !Application.RenderWithVisualStyles;
if (Application.RenderWithVisualStyles)
{
using var screen = GdiCache.GetScreenHdc();
layout.checkSize = CheckBoxRenderer.GetGlyphSize(
screen,
CheckBoxRenderer.ConvertFromButtonState(
GetState(),
true,
Control.MouseIsOver),
Control.HandleInternal).Width;
}
else
{
if (DpiHelper.IsPerMonitorV2Awareness)
{
layout.checkSize = Control.LogicalToDeviceUnits(layout.checkSize);
}
else
{
layout.checkSize = (int)(layout.checkSize * GetDpiScaleRatio());
}
}
return(layout);
}
public void GraphicsIdentity()
{
// https://github.com/dotnet/winforms/issues/3910
using var hdc = GdiCache.GetScreenHdc();
using PaintEventArgs args = new PaintEventArgs(hdc, default);
Graphics g1 = args.Graphics;
Graphics g2 = args.Graphics;
Assert.Same(g1, g2);
}
public void Font_MeasureText(string family, float size, Size proposedSize, uint dt, Size expected)
{
using Font font = new Font(family, size);
if (font.Name != family)
{
// Not installed on this machine
return;
}
using var hfont = GdiCache.GetHFONT(font, Gdi32.QUALITY.CLEARTYPE);
using var screen = GdiCache.GetScreenHdc();
Size measure = screen.HDC.MeasureText("Windows Foundation Classes", hfont, proposedSize, (User32.DT)dt);
Assert.Equal(expected, measure);
}
public void Font_GetTextExtent(string family, float size, int width, int height)
{
using Font font = new Font(family, size);
if (font.Name != family)
{
// Not installed on this machine
return;
}
using var hfont = GdiCache.GetHFONT(font, Gdi32.QUALITY.CLEARTYPE);
using var screen = GdiCache.GetScreenHdc();
Size extent = screen.HDC.GetTextExtent("Whizzo Butter", hfont);
Assert.Equal(width, extent.Width);
Assert.Equal(height, extent.Height);
}
internal override Size GetPreferredSizeCore(Size proposedSize)
{
if (Appearance == Appearance.Button)
{
return(ButtonAdapter.GetPreferredSizeCore(proposedSize));
}
LayoutOptions options = default;
using (var screen = GdiCache.GetScreenHdc())
using (PaintEventArgs pe = new PaintEventArgs(screen, new Rectangle()))
{
options = Layout(pe);
}
return(options.GetPreferredSizeCore(proposedSize));
}
internal override Size GetPreferredSizeCore(Size proposedSize)
{
if (Control.Appearance == Appearance.Button)
{
ButtonStandardAdapter adapter = new ButtonStandardAdapter(Control);
return(adapter.GetPreferredSizeCore(proposedSize));
}
else
{
LayoutOptions options = default;
using (var screen = GdiCache.GetScreenHdc())
using (PaintEventArgs pe = new PaintEventArgs(screen, new Rectangle()))
{
options = Layout(pe);
}
return(options.GetPreferredSizeCore(proposedSize));
}
}
public void Font_AdjustForVerticalAlignment(string family, float size, Rectangle bounds, uint dt, Rectangle expected)
{
using Font font = new Font(family, size);
if (font.Name != family)
{
// Not installed on this machine
return;
}
using var hfont = GdiCache.GetHFONT(font, Gdi32.QUALITY.CLEARTYPE);
using var screen = GdiCache.GetScreenHdc();
using var fontSelection = new Gdi32.SelectObjectScope(screen, hfont.Object);
User32.DRAWTEXTPARAMS param = default;
Rectangle result = screen.HDC.AdjustForVerticalAlignment(
"Windows Foundation Classes",
bounds,
(User32.DT)dt,
ref param);
Assert.Equal(expected, result);
}
protected override LayoutOptions Layout(PaintEventArgs e)
{
LayoutOptions layout = CommonLayout();
layout.HintTextUp = false;
layout.DotNetOneButtonCompat = !Application.RenderWithVisualStyles;
if (Application.RenderWithVisualStyles)
{
ButtonBase b = Control;
using var screen = GdiCache.GetScreenHdc();
layout.CheckSize = RadioButtonRenderer.GetGlyphSize(
screen,
RadioButtonRenderer.ConvertFromButtonState(GetState(), b.MouseIsOver),
b.HandleInternal).Width;
}
else
{
layout.CheckSize = (int)(layout.CheckSize * GetDpiScaleRatio());
}
return(layout);
}