/// <summary>
/// Animates the <see cref="Control.BackColor"/> alpha channel
/// </summary>
/// <param name="form">A <see cref="Control"/></param>
/// <param name="from">A starting position, if null, it will use the current opacity value</param>
/// <param name="to">The final result, if null, it will be set to 1.0</param>
/// <param name="duration">The duration for animation to complete</param>
/// <param name="easingFunction">A defined <see cref="EasingFunction"/> to interpolate the animation values</param>
public static void AnimateOpacity(this Control control, double duration, double?from, double?to, EasingFunction easingFunction = null)
{
if (control != null)
{
if (!from.HasValue)
{
from = 0.0;
}
if (!to.HasValue)
{
to = 1.0;
}
// ensure the UI thread updates the UI components
Action <double> invoker = new Action <double>((value) =>
{
control.BackColor = Color.FromArgb((int)value * 255, control.BackColor.R, control.BackColor.G, control.BackColor.B);
});
DoubleAnimation doubleAnimation = new DoubleAnimation(from.Value, to.Value, easingFunction ?? ControlPropertyAnimator.DefaultEasingFunction, duration);
doubleAnimation.TimelineTick += (sender, args) =>
{
double currentValue = doubleAnimation.Current;
control.BeginInvoke(invoker, currentValue);
};
doubleAnimation.Begin();
}
}
/// <summary>
/// Animates the <see cref="Form.Opacity"/> property with the given control parameters
/// </summary>
/// <param name="form">The <see cref="Form"/> to animate the opacity property</param>
/// <param name="from">A starting position, if null, it will use the current opacity value</param>
/// <param name="to">The final result, if null, it will be set to 1.0</param>
/// <param name="duration">The duration for animation to complete</param>
/// <param name="easingFunction">A defined <see cref="EasingFunction"/> to interpolate the animation values</param>
public static void AnimateOpacity(this Form form, double duration, double?from, double?to, EasingFunction easingFunction = null)
{
if (form != null)
{
if (!from.HasValue)
{
from = form.Opacity;
}
if (!to.HasValue)
{
to = 1.0;
}
// ensure the UI thread updates the UI components
Action <double> invoker = new Action <double>((value) =>
{
form.Opacity = value;
});
DoubleAnimation doubleAnimation = new DoubleAnimation(from.Value, to.Value, easingFunction ?? ControlPropertyAnimator.DefaultEasingFunction, duration);
doubleAnimation.TimelineTick += (sender, args) =>
{
double currentValue = doubleAnimation.Current;
form.BeginInvoke(invoker, currentValue);
};
doubleAnimation.Begin();
}
}
/// <summary>
/// Animates a <see cref="Control"/> by adjusting the width and height whilst maintaining center position.
/// </summary>
/// <param name="control">A <see cref="Control"/></param>
/// <param name="from">A starting position, if null, it will use the current opacity value</param>
/// <param name="to">The final result, if null, it will be set to 1.0</param>
/// <param name="duration">The duration for animation to complete</param>
/// <param name="easingFunction">A defined <see cref="EasingFunction"/> to interpolate the animation values</param>
public static void AnimateScale(this Control control, double duration, Size?from, Size?to, ScaleMode scaleMode, EasingFunction easingFunction = null)
{
if (control != null)
{
if (!from.HasValue)
{
from = new Size(control.Width, control.Height);
}
if (!to.HasValue)
{
to = new Size(control.Width, control.Height);
}
// ensure the UI thread updates the UI components
Action <Size> invoker = new Action <Size>((value) =>
{
scaleMode.Apply(control, value);
});
double _fromFactor = 0.0;
double _toFactor = 1.0;
DoubleAnimation doubleAnimation = new DoubleAnimation(_fromFactor, _toFactor, easingFunction ?? ControlPropertyAnimator.DefaultEasingFunction, duration);
doubleAnimation.TimelineTick += (sender, args) =>
{
double currentValue = doubleAnimation.Current;
// create a size object based from the current factor
Size _size = new Size((int)(to.Value.Width * currentValue), (int)(to.Value.Height * currentValue));
control.BeginInvoke(invoker, _size);
};
control.Size = from.Value;
doubleAnimation.Begin();
}
}
/// <summary>
/// Animates this prompt in with the specified options
/// </summary>
public DialogResult Show(string message, string title, PromptMessageButtons buttons)
{
this.ParentControl.BringToFront();
this.Title.Text = title;
this.Message.Text = message;
switch (buttons)
{
case PromptMessageButtons.Ok:
this.Btn2.Text = DialogResult.OK.ToString();
this.Btn2.Visible = true;
this.Btn2.BackColor = DialogButtonStyles.PositiveBackColor;
this.Btn1.Visible = false;
this.Btn3.Visible = false;
break;
case PromptMessageButtons.OkCancel:
this.Btn1.Text = DialogResult.OK.ToString();
this.Btn1.Visible = true;
this.Btn1.BackColor = DialogButtonStyles.PositiveBackColor;
this.Btn3.Text = DialogResult.Cancel.ToString();
this.Btn3.Visible = true;
this.Btn3.BackColor = DialogButtonStyles.NeutralBackColor;
this.Btn2.Visible = false;
break;
case PromptMessageButtons.YesNoCancel:
this.Btn1.Text = DialogResult.Yes.ToString();
this.Btn1.Visible = true;
this.Btn1.BackColor = DialogButtonStyles.PositiveBackColor;
this.Btn2.Text = DialogResult.Cancel.ToString();
this.Btn2.Visible = true;
this.Btn2.BackColor = DialogButtonStyles.NeutralBackColor;
this.Btn3.Text = DialogResult.No.ToString();
this.Btn3.Visible = true;
this.Btn3.BackColor = DialogButtonStyles.NegativeBackColor;
break;
case PromptMessageButtons.YesNo:
this.Btn1.Text = DialogResult.Yes.ToString();
this.Btn1.Visible = true;
this.Btn1.BackColor = DialogButtonStyles.PositiveBackColor;
this.Btn3.Text = DialogResult.No.ToString();
this.Btn3.Visible = true;
this.Btn3.BackColor = DialogButtonStyles.NegativeBackColor;
this.Btn2.Visible = false;
break;
default:
break;
}
int _scale = 45;
int _y = this.PromptPanel.Location.Y - _scale;
this.PromptPanel.Location = new Point(this.PromptPanel.Location.X, _y);
// ensure the UI thread updates the UI components
Action <double> invoker = new Action <double>((value) =>
{
this.PromptPanel.Location = new Point(this.PromptPanel.Location.X, _y + (int)(_scale * value));
});
DoubleAnimation doubleAnimation = new DoubleAnimation(0.0, 1.0, new QuadraticEaseFunction(EaseMode.EaseOut), 300, 120);
doubleAnimation.TimelineTick += (o, a) =>
{
double _current = doubleAnimation.Current;
this.BeginInvoke(invoker, _current);
};
doubleAnimation.Begin();
this.AnimateOpacity(300, 0.0, 0.6);
return(base.ShowDialog());
}
