/// <summary>
/// Constructs a Button with the specified caption and font, and
/// default size.
/// </summary>
/// <param name="caption"></param>
/// <param name="font"></param>
public Button(string caption, Font font)
{
_caption = caption;
_font = font;
HorizontalAlignment = HorizontalAlignment.Left;
VerticalAlignment = VerticalAlignment.Bottom;
int textWidth;
int textHeight;
_font.ComputeExtent(_caption, out textWidth, out textHeight);
_width = textWidth + _textMarginX * 2;
_height = textHeight + _textMarginY * 2;
}
/// <summary>
/// Displays the specified text.
/// </summary>
/// <param name="text">The text to display.</param>
/// <param name="font">The font to use for the text display.</param>
/// <param name="color">The color of the text.</param>
/// <param name="x">The X coordinate to begin the text display.</param>
/// <param name="y">The Y coordinate to begin the text display.</param>
/// <remarks>
/// This method displays text at the specified screen location.
/// If the text is too long for the display, it will be clipped.
/// </remarks>
public void DisplayText(string text, Font font, Color color, int x, int y)
{
_screen.DrawText(text, font, color, x, y);
if (_autoRedraw)
{
if (_redrawAll)
{
_displayModule.Paint(_screen, 0, 0, _width, _height);
_redrawAll = false;
}
else
{
int right, bottom;
font.ComputeExtent(text, out right, out bottom);
right += x;
bottom += y;
if (right >= _width) right = _width - 1;
if (bottom >= _height) bottom = _height - 1;
if (x < 0) x = 0;
if (y < 0) y = 0;
if (right >= 0 && bottom >= 0 && x < _width && y < _height)
_displayModule.Paint(_screen, x, y, right - x + 1, bottom - y + 1);
}
}
}
