public void SetColor(Pango.RenderPart part, Pango.Color color)
{
IntPtr native_color = GLib.Marshaller.StructureToPtrAlloc(color);
pango_renderer_set_color(Handle, (int)part, native_color);
Marshal.FreeHGlobal(native_color);
}
public Pango.Color GetColor(Pango.RenderPart part)
{
IntPtr raw_ret = pango_renderer_get_color(Handle, (int)part);
Pango.Color ret = Pango.Color.New(raw_ret);
return(ret);
}
public void SetForegroundBrush(IBrush brush, int startIndex, int count)
{
var scb = brush as SolidColorBrush;
if (scb != null)
{
var color = new Pango.Color();
color.Parse(string.Format("#{0}", scb.Color.ToString().Substring(3)));
var brushAttr = new Pango.AttrForeground(color);
brushAttr.StartIndex = (uint)TextIndexToPangoIndex(startIndex);
brushAttr.EndIndex = (uint)TextIndexToPangoIndex(startIndex + count);
Layout.Attributes.Insert(brushAttr);
}
}
public FormattedTextImpl(
Pango.Context context,
string text,
Typeface typeface,
TextAlignment textAlignment,
TextWrapping wrapping,
Size constraint,
IReadOnlyList <FormattedTextStyleSpan> spans)
{
Contract.Requires <ArgumentNullException>(context != null);
Contract.Requires <ArgumentNullException>(text != null);
Layout = new Pango.Layout(context);
Layout.SetText(text);
Layout.FontDescription = new Pango.FontDescription
{
Family = typeface?.FontFamilyName ?? "monospace",
Size = Pango.Units.FromDouble(CorrectScale(typeface?.FontSize ?? 12)),
Style = (Pango.Style)(typeface?.Style ?? FontStyle.Normal),
Weight = (typeface?.Weight ?? FontWeight.Normal).ToCairo(),
};
Layout.Alignment = textAlignment.ToCairo();
Layout.Attributes = new Pango.AttrList();
Layout.Width = double.IsPositiveInfinity(constraint.Width) ? -1 : Pango.Units.FromDouble(constraint.Width);
if (spans != null)
{
foreach (var span in spans)
{
if (span.ForegroundBrush is SolidColorBrush scb)
{
var color = new Pango.Color();
color.Parse(string.Format("#{0}", scb.Color.ToString().Substring(3)));
var brushAttr = new Pango.AttrForeground(color);
brushAttr.StartIndex = (uint)TextIndexToPangoIndex(span.StartIndex);
brushAttr.EndIndex = (uint)TextIndexToPangoIndex(span.StartIndex + span.Length);
this.Layout.Attributes.Insert(brushAttr);
}
}
}
Size = Measure();
}
void RenderTextModeText(Context cr)
{
Pango.Color color = new Pango.Color();
color.Blue = color.Red = color.Green = (ushort)(ushort.MaxValue * text_box_scale);
Gdk.Rectangle cursor = TextUtility.RenderLayoutText(cr, GLib.Markup.EscapeText(Context.GetPaneQuery(Focus)),
drawing_area.X + 10, drawing_area.Y + TextModeOffset + 5,
drawing_area.Width - 20, 18, color,
Pango.Alignment.Left, Pango.EllipsizeMode.None);
if (cursor.X == cursor.Y && cursor.X == 0)
{
return;
}
cr.Rectangle(cursor.X, cursor.Y, 2, cursor.Height);
cr.SetSourceRGBA(.4, .5, 1, .85);
cr.Fill();
}
public Gdk.Rectangle RenderLayoutText(Context cr, string text, int x, int y, int width, int textHeight,
Pango.Color color, Pango.Alignment align, Pango.EllipsizeMode ellipse)
{
if (string.IsNullOrEmpty(text))
{
return(new Gdk.Rectangle());
}
if (layout != null)
{
layout.Context.Dispose();
layout.FontDescription.Dispose();
layout.Dispose();
}
layout = new Pango.Layout(ReferenceWidget.CreatePangoContext());
layout.FontDescription = new Pango.FontDescription();
layout.FontDescription.AbsoluteSize = Pango.Units.FromPixels(textHeight);
layout.Width = Pango.Units.FromPixels(width);
layout.Ellipsize = ellipse;
layout.Alignment = align;
if (ellipse == Pango.EllipsizeMode.None)
{
layout.Wrap = Pango.WrapMode.WordChar;
}
text = string.Format("<span foreground=\"{0}\">{1}</span>", color, text);
layout.SetMarkup(text);
cr.Rectangle(x, y, width, 155);
cr.Clip();
cr.MoveTo(x, y);
Pango.CairoHelper.ShowLayout(cr, layout);
Pango.Rectangle strong, weak;
layout.GetCursorPos(layout.Lines [layout.LineCount - 1].StartIndex +
layout.Lines [layout.LineCount - 1].Length,
out strong, out weak);
cr.ResetClip();
return(new Gdk.Rectangle(Pango.Units.ToPixels(weak.X) + x,
Pango.Units.ToPixels(weak.Y) + y,
Pango.Units.ToPixels(weak.Width),
Pango.Units.ToPixels(weak.Height)));
}
void RenderPaneText(Pane pane, Context cr, string text)
{
if (text.Length == 0)
{
return;
}
if (Context.GetPaneTextMode(pane))
{
Pango.Color color = new Pango.Color();
color.Blue = color.Green = color.Red = ushort.MaxValue;
int y = drawing_area.Y + WindowBorder + TitleBarHeight + 6;
int x = drawing_area.X + PaneOffset(pane) + 5;
TextUtility.RenderLayoutText(cr, text, x, y, BoxWidth - 10, TextHeight, color,
Pango.Alignment.Left, Pango.EllipsizeMode.None);
}
else
{
string query = Context.GetPaneQuery(pane);
if (!string.IsNullOrEmpty(query))
{
text = Util.FormatCommonSubstrings(text, query, HighlightFormat);
}
if (PaneOutlineRenderer.StackIconText)
{
int y = drawing_area.Y + WindowBorder + TitleBarHeight + BoxHeight - TextHeight - 9;
int x = drawing_area.X + PaneOffset(pane) + 5;
TextUtility.RenderLayoutText(cr, text, x, y, BoxWidth - 10, TextHeight);
}
else
{
int y = drawing_area.Y + WindowBorder + TitleBarHeight + (int)(BoxHeight / 2);
int x = drawing_area.X + PaneOffset(pane) + IconSize + 10;
TextUtility.RenderLayoutText(cr, text, x, y, BoxWidth - IconSize - 20, TextHeight);
}
}
}
static void ReadNative(IntPtr native, ref Pango.Color target)
{
target = New(native);
}
public AttrUnderlineColor(Pango.Color color) : this(pango_attr_underline_color_new(color.Red, color.Green, color.Blue))
{
}
public AttrBackground(Pango.Color color) : this(pango_attr_background_new(color.Red, color.Green, color.Blue))
{
}
public AttrStrikethroughColor(Pango.Color color) : this(pango_attr_strikethrough_color_new(color.Red, color.Green, color.Blue))
{
}
public void SetForegroundBrush(IBrush brush, int startIndex, int count)
{
var scb = brush as SolidColorBrush;
if (scb != null)
{
var color = new Pango.Color();
color.Parse(string.Format("#{0}", scb.Color.ToString().Substring(3)));
var brushAttr = new Pango.AttrForeground(color);
brushAttr.StartIndex = (uint)TextIndexToPangoIndex(startIndex);
brushAttr.EndIndex = (uint)TextIndexToPangoIndex(startIndex + count);
Layout.Attributes.Insert(brushAttr);
}
}
public AttrForeground(Pango.Color color) : this(pango_attr_foreground_new(color.Red, color.Green, color.Blue))
{
}
public void RenderLayoutText(Context cr, string text, int x, int y, int width, int textHeight)
{
Pango.Color color = new Pango.Color();
color.Blue = color.Red = color.Green = ushort.MaxValue;
RenderLayoutText(cr, text, x, y, width, textHeight, color, Pango.Alignment.Center, Pango.EllipsizeMode.End);
}