/// <summary>
/// Measure the width that a set of text will take for a given font
/// </summary>
/// <param name="text"></param>
/// <param name="font"></param>
/// <returns></returns>
public int MeasureString(string text, Font font)
{
if (text == null || text.Trim() == "") return 0;
int size = 0;
for (int i = 0; i < text.Length; i++)
{
size += font.CharWidth(text[i]);
}
return size;
}
private static int alignRight(string text, Font textFont)
{
int increaseLabelWidth = 0;
char[] increaseCharArray = _incrementLabel.ToCharArray(0, _incrementLabel.Length);
for (int letterNo = 0; letterNo < increaseCharArray.Length; letterNo++)
{
increaseLabelWidth += textFont.CharWidth(increaseCharArray[letterNo]);
}
return DISPLAY_WIDTH - increaseLabelWidth - DISPLAY_MARGIN;
}
public Calculator()
{
font = Resources.GetFont(Resources.FontResources.NinaB);
ButtonHelper.Current.OnButtonPress += Current_OnButtonPress;
BackgroundColor = Color.White;
ForegroundColor = Color.Black;
ButtonHeight = font.Height;
ButtonWidth = font.CharWidth('8')*2;
//each button has a height of 15
//we want to align from the bottom up
int leftPadding = 7;
Buttons = new ArrayList();
int bottom = Program.AgentSize - ButtonHeight - ButtonBorder*2;
int left = leftPadding;
int width = ButtonWidth + ButtonBorder;
char[] map = new char[]
{
'0', '.', 'x', '/', '=',
'1', '2', '3', '-', '=',
'4', '5', '6', '+', '=',
'7', '8', '9', 'C', '='
};
for (int i = 0; i <= map.Length - 1; i++)
{
var newButton = new CalculatorButton()
{
Point = new Point(left, bottom),
Text = map[i].ToString()
};
Buttons.Add(newButton);
if (SelectedButton == null)
{
SelectedButton = newButton;
newButton.Selected = true;
}
if (i == 4 || i == 9 || i == 14 || i == 19)
{
bottom = bottom - ButtonHeight - ButtonBorder*2;
left = leftPadding;
}
else
{
left = left + (ButtonWidth + ButtonBorder + 4);
}
}
}
static public void DrawString(Font font, String text, int x, int y, UInt32 text_color, UInt32 back_color)
{
int width = 0;
for (int i = 0; i < text.Length; i++)
{
width+=font.CharWidth((char)(text[i]));
}
Bitmap bmp = new Bitmap(width, font.Height);
bmp.DrawRectangle((Microsoft.SPOT.Presentation.Media.Color)back_color, 100, 0, 0, width, font.Height, 0, 0, (Microsoft.SPOT.Presentation.Media.Color)back_color, 0, 0, (Microsoft.SPOT.Presentation.Media.Color)back_color, 0, 0, 0);
bmp.DrawText(text, font, (Microsoft.SPOT.Presentation.Media.Color)text_color, 0, 0);
Image imge = new Image(bmp); // Note: Maybe out of memory here
DrawImage(imge, x, y);
bmp.Dispose();
bmp = null;
imge.Dispose();
imge = null;
}
/// <summary>
/// Draws a string to the display.
/// </summary>
/// <param name="text">The text to write.</param>
/// <param name="x">The x coordinate where to draw.</param>
/// <param name="y">The y coordinate where to draw.</param>
/// <param name="font">The font to use.</param>
/// <param name="foreColor">The color of the text.</param>
/// <param name="backColor">The background color of the text.</param>
public static void Draw(string text, int x, int y, Font font, Color foreColor, Color backColor)
{
int width = 0;
for (int i = 0; i < text.Length; i++)
{
width += font.CharWidth((char)(text[i]));
}
Bitmap bmp = new Bitmap(width, font.Height);
bmp.DrawRectangle(backColor, 100, 0, 0, width, font.Height, 0, 0, backColor, 0, 0, backColor, 0, 0, 0);
bmp.DrawText(text, font, foreColor, 0, 0);
Display.Draw(new TinyBitmap(bmp), x, y);
}
/// <summary>
/// Constructs a TextScrollViewer using the specified text, font, and color.
/// </summary>
/// <param name="text"></param>
/// <param name="font"></param>
/// <param name="color"></param>
public TextScrollViewer(string text, Font font, Color color)
{
// Create the ScrollViewer object.
_viewer = new ScrollViewer();
// Create the ScrollText object using the parameters passed into the
// constructor and then set other important member values.
ScrollText = new ScrollerText(text, font, color);
ScrollText.HorizontalAlignment = HorizontalAlignment.Left;
ScrollText.VerticalAlignment = VerticalAlignment.Top;
// Set the child of the viewer to be the ScrollText object.
this._viewer.Child = ScrollText;
// Hard code a line with and height based on the character 'A'.
_viewer.LineWidth = font.CharWidth('A');
_viewer.LineHeight = font.Height;
// Set the child of our class to be the ScrollViewer object.
this.Children.Add(_viewer);
}
