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If text color not visible in white background then use dark gray background color

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This commit is contained in:
Jaex 2016-05-20 17:48:01 +03:00
parent b47a69c8bb
commit cfcb879172
4 changed files with 14 additions and 12 deletions
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4
ShareX.HelpersLib/Colors/GradientPickerForm.cs
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@ -82,7 +82,7 @@ private void AddGradientStop(GradientStop gradientStop)
ListViewItem lvi = new ListViewItem();
lvi.Text = string.Format(" {0:0.##}%", gradientStop.Location);
lvi.BackColor = gradientStop.Color;
lvi.ForeColor = ColorHelpers.VisibleTextColor(gradientStop.Color);
lvi.ForeColor = ColorHelpers.VisibleColor(gradientStop.Color);
lvi.Tag = gradientStop;
lvGradientPoints.Items.Add(lvi);
}
@ -117,7 +117,7 @@ private void cbtnCurrentColor_ColorChanged(Color color)
GradientStop gradientStop = (GradientStop)lvi.Tag;
gradientStop.Color = color;
lvi.BackColor = gradientStop.Color;
lvi.ForeColor = ColorHelpers.VisibleTextColor(gradientStop.Color);
lvi.ForeColor = ColorHelpers.VisibleColor(gradientStop.Color);
UpdatePreview();
}
}

20
ShareX.HelpersLib/Helpers/ColorHelpers.cs
View file

@ -351,24 +351,24 @@ public static Color Mix(List<Color> colors)
return Color.FromArgb(a / count, r / count, g / count, b / count);
}
public static int PerceivedBrightness(Color c)
public static int PerceivedBrightness(Color color)
{
return (int)Math.Sqrt(
c.R * c.R * .299 +
c.G * c.G * .587 +
c.B * c.B * .114);
return (int)Math.Sqrt(color.R * color.R * .299 + color.G * color.G * .587 + color.B * color.B * .114);
}
public static Color VisibleTextColor(Color c)
public static Color VisibleColor(Color color)
{
return PerceivedBrightness(c) > 130 ? Color.Black : Color.White;
return VisibleColor(color, Color.White, Color.Black);
}
public static Color VisibleColor(Color color, Color lightColor, Color darkColor)
{
return PerceivedBrightness(color) > 130 ? darkColor : lightColor;
}
public static Color Lerp(Color from, Color to, float amount)
{
return Color.FromArgb((int)MathHelpers.Lerp(from.R, to.R, amount),
(int)MathHelpers.Lerp(from.G, to.G, amount),
(int)MathHelpers.Lerp(from.B, to.B, amount));
return Color.FromArgb((int)MathHelpers.Lerp(from.R, to.R, amount), (int)MathHelpers.Lerp(from.G, to.G, amount), (int)MathHelpers.Lerp(from.B, to.B, amount));
}
}
}

1
ShareX.ScreenCaptureLib/Forms/TextDrawingInputBox.Designer.cs generated
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@ -61,6 +61,7 @@ private void InitializeComponent()
this.txtInput.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.txtInput.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.txtInput.Location = new System.Drawing.Point(8, 40);
this.txtInput.Multiline = true;
this.txtInput.Name = "txtInput";

1
ShareX.ScreenCaptureLib/Forms/TextDrawingInputBox.cs
View file

@ -174,6 +174,7 @@ private void UpdateInputBox()
{
txtInput.Font = new Font(Options.Font, Options.Size, Options.Style);
txtInput.ForeColor = Options.Color;
txtInput.BackColor = ColorHelpers.VisibleColor(Options.Color, Color.White, Color.FromArgb(50, 50, 50));
HorizontalAlignment horizontalAlignment;