/// <summary>
/// Calculate required drawing size for push button.
/// </summary>
/// <param name="g">Graphics reference used in calculations.</param>
/// <param name="details">Source details needed to perform calculation.</param>
/// <param name="topLevel">Drawing as a top level item.</param>
/// <returns>Size of required area for command.</returns>
public override Size CalculateDrawSize(Graphics g, ICommandDetails details, bool topLevel)
{
int width = 0;
int height = 0;
// The size of the button area is calculated as....
//
// Size needed for image (the image is not rotated when shown vertically)
// Size needed for the text (the text is rotated when shown vertically)
//
// Do we have an image that needs positioning?
if ((Image != null) && (details.ImageAndText != ImageAndText.TextOnly))
{
Size imageSize = ImageSpace(details.Style);
width = imageSize.Width;
height = imageSize.Height;
// With an image we need an extra pixel gap to the left (IDE and Office2003 only)
if ((details.Style == VisualStyle.IDE) ||
(details.Style == VisualStyle.IDE2005) ||
(details.Style == VisualStyle.Office2003))
{
width += SPACE_LEFT_EXTRA;
}
}
// Do we have any text to position?
if ((Text.Length > 0) && (details.ImageAndText != ImageAndText.ImageOnly))
{
// Get regular size of the text (horizontally)
Size textSize = CommandDraw.TextSize(g, details.Font, Text);
// Are we drawing the contents as if horizontal
if ((details.Direction == LayoutDirection.Horizontal) || details.OnlyHorizontalText)
{
// Position the text drawn horizontal
switch (details.TextEdge)
{
case TextEdge.Left:
case TextEdge.Right:
// Increase width by text width
width += textSize.Width;
// If we have an image as well then need a spacing gap
if (Image != null)
{
width += SPACE_GAP_WIDTH;
}
// Make sure height is enough for text
if (height < textSize.Height)
{
height = textSize.Height;
}
break;
case TextEdge.Top:
case TextEdge.Bottom:
// Increase height by text height
height += SPACE_HEIGHT + textSize.Height;
// If we have an image as well then need a spacing gap
if (Image != null)
{
height += SPACE_HEIGHT;
}
// Make sure width is enough for text
if (width < textSize.Width)
{
width = textSize.Width;
}
break;
}
}
else
{
// Position the text drawn vertical
switch (details.TextEdge)
{
case TextEdge.Left:
case TextEdge.Right:
// Increase height text height
height += textSize.Width;
// If we have an image as well then need a spacing gap
if (Image != null)
{
height += SPACE_GAP_WIDTH;
}
// Make sure width is enough for text
if (width < textSize.Height)
{
width = textSize.Height;
}
break;
case TextEdge.Top:
case TextEdge.Bottom:
// Increase height by text height
width += textSize.Height;
// If we have an image as well then need a spacing gap
if (Image != null)
{
width += SPACE_HEIGHT;
}
// Make sure width is enough for text
if (height < textSize.Width)
{
height = textSize.Width;
}
break;
}
}
}
// Calculate total area using borders and spacing gaps around inner size
width += (BORDER_WIDTH * 2) + (SPACE_WIDTH * 2);
height += (BORDER_HEIGHT * 2) + (SPACE_HEIGHT * 2);
// The width and height are always the same no matter which direction we are in
return(new Size(width, height));
}
