/// <summary> Draws the focus on the check box glyph. </summary>
/// <param name="mgCheckBox"></param>
/// <param name="graphics"></param>
public static void DrawFocusRectOnCheckBoxGlyph(MgCheckBox mgCheckBox, Graphics graphics)
{
Rectangle focusRectangle = new Rectangle();
Rectangle clientRectangle = mgCheckBox.ClientRectangle;
int boxWidth = CheckBoxRenderer.GetGlyphSize(graphics, CheckBoxState.UncheckedNormal).Width;
int boxHeight = CheckBoxRenderer.GetGlyphSize(graphics, CheckBoxState.UncheckedNormal).Height;
int left = mgCheckBox.Padding.Left;
int top = 0;
//CheckBoxRenderer.GetGlyphSize() always returns the size for 3D style.But, the 2D box is smaller.So, the focus rectangle was too big.
//There is no way where we can query the size for 2D.Framework has hardcoded the size of the Box as { 11, 11} in CheckBoxFlatAdapter.Layout().
//So, we also need to hard-code this value. Note that, if framework changes these hard-coded values, we will also need to change them.
if (mgCheckBox.FlatStyle == FlatStyle.Flat)
{
boxWidth = boxHeight = (int)(11f * Utils.GetDpiScaleRatioY(mgCheckBox));
}
// calculate the Left based on RightToLeft property.
// Depends on RightToLeft and NOT Horizontal alignment.
if (mgCheckBox.RightToLeft == RightToLeft.Yes)
{
left = clientRectangle.Width - boxWidth - 1;
}
// calculate the Top based on Vertical alignment.
ControlUtils.AlignmentInfo AlignmentInfo = ControlUtils.GetAlignmentInfo(mgCheckBox.TextAlign);
switch (AlignmentInfo.VerAlign)
{
case AlignmentTypeVert.Top:
top = 2 + mgCheckBox.Padding.Top;
break;
case AlignmentTypeVert.Center:
top = (clientRectangle.Height - boxHeight) / 2;
break;
case AlignmentTypeVert.Bottom:
top = clientRectangle.Height - boxHeight - 1 - mgCheckBox.Padding.Bottom;
break;
}
focusRectangle.X = left;
focusRectangle.Y = top;
focusRectangle.Width = boxWidth;
focusRectangle.Height = boxHeight;
focusRectangle.Inflate(1, 1);
//Ensure that the rectangle is within the control.
focusRectangle.X = Math.Max(focusRectangle.X, 0);
focusRectangle.Y = Math.Max(focusRectangle.Y, 0);
focusRectangle.Width = Math.Min(focusRectangle.Width, clientRectangle.Right - focusRectangle.X);
focusRectangle.Height = Math.Min(focusRectangle.Height, clientRectangle.Bottom - focusRectangle.Y);
ControlPaint.DrawFocusRectangle(graphics, focusRectangle);
}
/// <summary>
/// Set the appearance of CheckBox
/// </summary>
public static void SetCheckboxMainStyle(MgCheckBox mgCheckBox, Appearance appearance)
{
mgCheckBox.Appearance = appearance;
}