public void Render(Cairo.Context c, Control control)
{
TextBlock textBlock = control as TextBlock;
Rectangle borderRect;
c.Save();
borderRect = new Rectangle(textBlock.Location.X, textBlock.Location.Y, textBlock.Width, textBlock.Height);
if (!textBlock.CanGrow || DesignMode)
{
c.ClipRectangle(borderRect);
}
var rect = c.DrawTextBlock(textBlock, false);
if (!DesignMode && (textBlock.CanGrow && rect.Height > textBlock.Height || textBlock.CanShrink && rect.Height < textBlock.Height))
{
borderRect = new Rectangle(textBlock.Location.X, textBlock.Location.Y, textBlock.Width, rect.Height);
}
else
{
borderRect = new Rectangle(textBlock.Location.X, textBlock.Location.Y, textBlock.Width, textBlock.Height);
}
c.FillRectangle(borderRect, textBlock.BackgroundColor.ToCairoColor());
c.DrawTextBlock(textBlock, true);
c.DrawInsideBorder(borderRect, textBlock.Border, true);
c.Restore();
}
/// <summary>
/// Breaks off contol at most at height.
/// </summary>
/// <returns>
/// Array of two controls: broken control with height equal to height param or lower and second control representing rest part of oryginal control
/// </returns>
/// <param name='control'>
/// Control to broke off
/// </param>
/// <param name='height'>
/// Height.
/// </param>
public Control[] BreakOffControlAtMostAtHeight(Cairo.Context c, Control control, double height)
{
Control[] controls = new Control[2];
TextBlock textBlock = control.CreateControl() as TextBlock;
controls[1] = textBlock;
var newTextBlock = control.CreateControl() as TextBlock;
textBlock.Top = 0;
int charNumber = c.GetBreakLineCharacterIndexbyMaxHeight(textBlock, height);
if (charNumber > 0)
{
newTextBlock.Text = textBlock.Text.Substring(0, charNumber - 1);
newTextBlock.Padding = new Thickness(textBlock.Padding.Left, 0, textBlock.Padding.Right, textBlock.Padding.Bottom);
var newSize = c.DrawTextBlock(newTextBlock, false);
newTextBlock.Height = newSize.Height;
textBlock.Height = textBlock.Height - newSize.Height;
textBlock.Text = textBlock.Text.Substring(charNumber - 1);
}
else if (charNumber == 0)
{
newTextBlock.Height = textBlock.Padding.Top;
newTextBlock.Text = String.Empty;
textBlock.Height = textBlock.Height - newTextBlock.Height;
}
else if (charNumber == -1)
{
newTextBlock.Height = height;
newTextBlock.Text = String.Empty;
textBlock.Height = textBlock.Height - height;
textBlock.Padding = new Thickness(textBlock.Padding.Left, textBlock.Padding.Top - height, textBlock.Padding.Right, textBlock.Padding.Bottom);
}
else if (charNumber == -2)
{
newTextBlock.Height = height;
textBlock.Text = String.Empty;
textBlock.FieldName = String.Empty;
textBlock.Height = textBlock.Height - height;
textBlock.Padding = new Thickness(textBlock.Padding.Left, textBlock.Padding.Top - height, textBlock.Padding.Right, textBlock.Padding.Bottom);
}
controls[0] = newTextBlock;
return(controls);
}
public Size Measure(Cairo.Context c, Control control)
{
TextBlock textBlock = control as TextBlock;
Rectangle borderRect;
var rect = c.DrawTextBlock(textBlock, false);
if (textBlock.CanGrow && rect.Height > textBlock.Height || textBlock.CanShrink && rect.Height < textBlock.Height)
{
borderRect = new Rectangle(textBlock.Location.X, textBlock.Location.Y, textBlock.Width, rect.Height);
}
else
{
borderRect = new Rectangle(textBlock.Location.X, textBlock.Location.Y, textBlock.Width, textBlock.Height);
}
return(new Size(borderRect.Width, borderRect.Height));
}
