public static Rectangle DrawTextBlock(this Context g, TextBlock tb, bool render)
{
double topBottomSpan = tb.Padding.Top + tb.Padding.Bottom;
double leftRightSpan = tb.Padding.Left + tb.Padding.Right;
double vertAlgSpan = 0;
g.Save();
Pango.Layout layout = createLayoutFromTextBlock(g, tb);
g.Color = tb.FontColor.ToCairoColor();
Pango.Rectangle unused;
Pango.Rectangle te;
layout.GetExtents(out unused, out te);
double measuredHeight = te.Height / Pango.Scale.PangoScale;
if (tb.VerticalAlignment != VerticalAlignment.Top)
{
vertAlgSpan = measureVerticlaSpan(tb, measuredHeight);
}
g.MoveTo(tb.Left + tb.Padding.Left, tb.Top + tb.Padding.Top + vertAlgSpan);
if (render)
{
Pango.CairoHelper.ShowLayout(g, layout);
}
layout.GetExtents(out unused, out te);
(layout as IDisposable).Dispose();
g.Restore();
return(new Rectangle(tb.Left - tb.Padding.Left + te.X / Pango.Scale.PangoScale, tb.Top - tb.Padding.Top + te.Y / Pango.Scale.PangoScale, (te.Width / Pango.Scale.PangoScale) + leftRightSpan, (te.Height / Pango.Scale.PangoScale) + topBottomSpan));
}
public static Rectangle DrawText(this Context g, PointD p, string family, Cairo.FontSlant slant, Cairo.FontWeight weight, double size, Cairo.Color color, double width, string text)
{
g.Save();
g.MoveTo(p.X, p.Y);
g.Color = color;
Pango.Layout layout = Pango.CairoHelper.CreateLayout(g);
layout.Wrap = Pango.WrapMode.Char;
layout.Width = (int)(width * Pango.Scale.PangoScale);
Pango.FontDescription fd = new Pango.FontDescription();
fd.Family = family;
fd.Style = CairoToPangoSlant(slant);
fd.Weight = CairoToPangoWeight(weight);
fd.AbsoluteSize = size * Pango.Scale.PangoScale;
layout.FontDescription = fd;
layout.Spacing = 0;
layout.Alignment = Pango.Alignment.Left;
layout.SetText(text);
Pango.Rectangle unused = Pango.Rectangle.Zero;
Pango.Rectangle te = Pango.Rectangle.Zero;
layout.GetExtents(out unused, out te);
Pango.CairoHelper.ShowLayout(g, layout);
layout.GetExtents(out unused, out te);
(layout as IDisposable).Dispose();
g.Restore();
return(new Rectangle(p.X + unused.X / Pango.Scale.PangoScale, p.Y + unused.Y / Pango.Scale.PangoScale, (unused.Width / Pango.Scale.PangoScale), (unused.Height / Pango.Scale.PangoScale)));
}
internal int CalcWidth()
{
if (win.DataProvider.IconCount == 0)
{
return(0);
}
int longest = 0;
string longestText = win.DataProvider.GetMarkup(0) ?? "";
for (int i = 1; i < win.DataProvider.IconCount; i++)
{
string curText = win.DataProvider.GetMarkup(i) ?? "";
if (curText.Length > longestText.Length)
{
longestText = curText;
longest = i;
}
}
layout.SetMarkup(win.DataProvider.GetMarkup(longest) ?? "<null>");
Pango.Rectangle inkRec, logRect;
layout.GetExtents(out inkRec, out logRect);
var icon = win.DataProvider.GetIcon(longest);
int iconWidth = icon != null ? (int)icon.Width : 24;
return(iconWidth + iconTextDistance + padding * 2 + leftXAlignment +
(int)(inkRec.Width / Pango.Scale.PangoScale));
}
public static Rectangle DrawText(this Context g, PointD p, string family, FontSlant slant, FontWeight weight, double size, Color color, string text, bool antiAliasing)
{
g.Save();
g.MoveTo(p.X, p.Y);
g.Color = color;
g.Antialias = antiAliasing ? Antialias.Subpixel : Antialias.None;
Pango.Layout layout = Pango.CairoHelper.CreateLayout(g);
Pango.FontDescription fd = new Pango.FontDescription();
fd.Family = family;
fd.Style = CairoToPangoSlant(slant);
fd.Weight = CairoToPangoWeight(weight);
fd.AbsoluteSize = size * Pango.Scale.PangoScale;
layout.FontDescription = fd;
layout.SetText(text);
Pango.CairoHelper.ShowLayoutLine(g, layout.Lines[0]);
Pango.Rectangle unused = Pango.Rectangle.Zero;
Pango.Rectangle te = Pango.Rectangle.Zero;
layout.GetExtents(out unused, out te);
(layout as IDisposable).Dispose();
g.Restore();
return(new Rectangle(te.X, te.Y, te.Width, te.Height));
}
/// <summary>
/// Gtk seems to have some trouble getting a wrapped label centered within
/// the space allocated to it, at least in this context. This is a hack to
/// get around the problem.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BtnLabel_Realized(object sender, EventArgs e)
{
((sender as Label).Parent as VBox).Spacing = 0;
Pango.Layout layout = (sender as Label).Layout;
Pango.Rectangle ink;
Pango.Rectangle logical;
layout.GetExtents(out ink, out logical);
(sender as Label).Xpad = ((layout.Width - logical.Width) / (int)Pango.Scale.PangoScale) / 2;
}
private int ComputeFooterHeight(Gtk.PrintContext context)
{
using (Pango.Layout layout = CreateTimestampLayout(context)) {
Pango.Rectangle ink_rect;
Pango.Rectangle logical_rect;
layout.GetExtents(out ink_rect, out logical_rect);
// Compute the footer height, include the space for the horizontal line
return(Pango.Units.ToPixels(ink_rect.Height) +
CmToPixel(0.5, context.DpiY));
}
}
public void GetExtents(out Pango.Rectangle ink_rect, out Pango.Rectangle logical_rect)
{
if (this.width >= 0)
{
ink_rect = logical_rect = new Pango.Rectangle {
X = 0,
Y = 0,
Width = width,
Height = height
};
return;
}
layout.GetExtents(out ink_rect, out logical_rect);
}
/// <summary>
/// Get character index after which layout should be broken to not exceed maxHeight
/// </summary>
/// <returns>
/// -1 if maxHeight is smaller than top padding. -2 if maxHeight is after text and character index if maxHeight is in the middle of the text.
/// </returns>
/// <param name='g'>
/// G.
/// </param>
/// <param name='tb'>
/// Tb.
/// </param>
/// <param name='maxHeight'>
/// Max height.
/// </param>
public static int GetBreakLineCharacterIndexbyMaxHeight(this Context g, TextBlock tb, double maxHeight)
{
int result = 0;
Pango.Rectangle unused;
Pango.Rectangle te;
double vertAlgSpan = 0;
int chi = 0;
int gi = 0;
if (maxHeight > 0)
{
Pango.Layout layout = createLayoutFromTextBlock(g, tb);
layout.GetExtents(out unused, out te);
double measuredHeight = te.Height / Pango.Scale.PangoScale;
if (tb.VerticalAlignment != VerticalAlignment.Top)
{
vertAlgSpan = measureVerticlaSpan(tb, measuredHeight);
}
double realTbStart = tb.Padding.Top + vertAlgSpan;
if (realTbStart >= maxHeight)
{
result = -1;
}
else if (maxHeight > realTbStart + measuredHeight)
{
return(-2);
}
else
{
layout.XyToIndex(0, (int)((maxHeight - realTbStart) * Pango.Scale.PangoScale), out chi, out gi);
byte[] bytes = System.Text.Encoding.UTF8.GetBytes(tb.Text);
int o = System.Text.Encoding.UTF8.GetCharCount(bytes, 0, chi);
result = o;
}
(layout as IDisposable).Dispose();
}
return(result);
}
/// <summary>
/// Gtk seems to have some trouble getting a wrapped label centered within
/// the space allocated to it, at least in this context. This is a hack to
/// get around the problem.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BtnLabel_Realized(object sender, EventArgs e)
{
try
{
if (sender is Label label && label.Parent is Box vbox)
{
vbox.Spacing = 0;
Pango.Layout layout = label.Layout;
Pango.Rectangle ink;
Pango.Rectangle logical;
layout.GetExtents(out ink, out logical);
int xpad = ((layout.Width - logical.Width) / (int)Pango.Scale.PangoScale) / 2;
if (xpad > 0)
{
label.Xpad = xpad;
}
}
}
catch (Exception err)
{
ShowError(err);
}
}
private void DrawString(PageText pt, Cairo.Context g, Cairo.Rectangle r)
{
StyleInfo si = pt.SI;
string s = pt.Text;
g.Save();
layout = Pango.CairoHelper.CreateLayout(g);
// Font drawFont = null;
// StringFormat drawFormat = null;
// Brush drawBrush = null;
// STYLE
// System.Drawing.FontStyle fs = 0;
// if (si.FontStyle == FontStyleEnum.Italic)
// fs |= System.Drawing.FontStyle.Italic;
//Pango fonts are scaled to 72dpi, Windows fonts uses 96dpi
float fontsize = (si.FontSize * 72 / 96);
var font = Pango.FontDescription.FromString(string.Format("{0} {1}", si.GetFontFamily().Name,
fontsize * PixelsX(1)));
if (si.FontStyle == FontStyleEnum.Italic)
{
font.Style = Pango.Style.Italic;
}
//
// switch (si.TextDecoration)
// {
// case TextDecorationEnum.Underline:
// fs |= System.Drawing.FontStyle.Underline;
// break;
// case TextDecorationEnum.LineThrough:
// fs |= System.Drawing.FontStyle.Strikeout;
// break;
// case TextDecorationEnum.Overline:
// case TextDecorationEnum.None:
// break;
// }
// WEIGHT
// switch (si.FontWeight)
// {
// case FontWeightEnum.Bold:
// case FontWeightEnum.Bolder:
// case FontWeightEnum.W500:
// case FontWeightEnum.W600:
// case FontWeightEnum.W700:
// case FontWeightEnum.W800:
// case FontWeightEnum.W900:
// fs |= System.Drawing.FontStyle.Bold;
// break;
// default:
// break;
// }
// try
// {
// drawFont = new Font(si.GetFontFamily(), si.FontSize, fs); // si.FontSize already in points
// }
// catch (ArgumentException)
// {
// drawFont = new Font("Arial", si.FontSize, fs); // if this fails we'll let the error pass thru
// }
//font.AbsoluteSize = (int)(PixelsX (si.FontSize));
switch (si.FontWeight)
{
case FontWeightEnum.Bold:
case FontWeightEnum.Bolder:
case FontWeightEnum.W500:
case FontWeightEnum.W600:
case FontWeightEnum.W700:
case FontWeightEnum.W800:
case FontWeightEnum.W900:
font.Weight = Pango.Weight.Bold;
break;
}
Pango.FontDescription oldfont = layout.FontDescription;
layout.FontDescription = font;
// ALIGNMENT
// drawFormat = new StringFormat();
// switch (si.TextAlign)
// {
// case TextAlignEnum.Right:
// drawFormat.Alignment = StringAlignment.Far;
// break;
// case TextAlignEnum.Center:
// drawFormat.Alignment = StringAlignment.Center;
// break;
// case TextAlignEnum.Left:
// default:
// drawFormat.Alignment = StringAlignment.Near;
// break;
// }
switch (si.TextAlign)
{
case TextAlignEnum.Right:
layout.Alignment = Pango.Alignment.Right;
break;
case TextAlignEnum.Center:
layout.Alignment = Pango.Alignment.Center;
break;
case TextAlignEnum.Left:
default:
layout.Alignment = Pango.Alignment.Left;
break;
}
layout.Width = Pango.Units.FromPixels((int)(r.Width - si.PaddingLeft - si.PaddingRight - 2));
// layout.Width = (int)Pango.Units.FromPixels((int)r.Width);
layout.SetText(s);
// if (pt.SI.WritingMode == WritingModeEnum.tb_rl)
// {
// drawFormat.FormatFlags |= StringFormatFlags.DirectionRightToLeft;
// drawFormat.FormatFlags |= StringFormatFlags.DirectionVertical;
// }
// switch (si.VerticalAlign)
// {
// case VerticalAlignEnum.Bottom:
// drawFormat.LineAlignment = StringAlignment.Far;
// break;
// case VerticalAlignEnum.Middle:
// drawFormat.LineAlignment = StringAlignment.Center;
// break;
// case VerticalAlignEnum.Top:
// default:
// drawFormat.LineAlignment = StringAlignment.Near;
// break;
// }
//
Pango.Rectangle logical;
Pango.Rectangle ink;
layout.GetExtents(out ink, out logical);
double height = logical.Height / Pango.Scale.PangoScale;
double y = 0;
switch (si.VerticalAlign)
{
case VerticalAlignEnum.Top:
y = r.Y + si.PaddingTop;
break;
case VerticalAlignEnum.Middle:
y = r.Y + (r.Height - height) / 2;
break;
case VerticalAlignEnum.Bottom:
y = r.Y + (r.Height - height) - si.PaddingBottom;
break;
}
// draw the background
DrawBackground(g, r, si);
// adjust drawing rectangle based on padding
// Cairo.Rectangle r2 = new Cairo.Rectangle(r.X + si.PaddingLeft,
// r.Y + si.PaddingTop,
// r.Width - si.PaddingLeft - si.PaddingRight,
// r.Height - si.PaddingTop - si.PaddingBottom);
Cairo.Rectangle box = new Cairo.Rectangle(
r.X + si.PaddingLeft + 1,
y,
r.Width,
r.Height);
//drawBrush = new SolidBrush(si.Color);
g.Color = si.Color.ToCairoColor();
// if (pt.NoClip) // request not to clip text
// {
// g.DrawString(pt.Text, drawFont, drawBrush, new PointF(r.Left, r.Top), drawFormat);
// //HighlightString(g, pt, new RectangleF(r.Left, r.Top, float.MaxValue, float.MaxValue),drawFont, drawFormat);
// }
// else
// {
// g.DrawString(pt.Text, drawFont, drawBrush, r2, drawFormat);
// //HighlightString(g, pt, r2, drawFont, drawFormat);
// }
g.MoveTo(box.X, box.Y);
Pango.CairoHelper.ShowLayout(g, layout);
layout.FontDescription = oldfont;
g.Restore();
}
public void OnDrawPage(object sender, Gtk.DrawPageArgs args)
{
using (Cairo.Context cr = args.Context.CairoContext) {
cr.MoveTo(margin_left, margin_top);
PageBreak start;
if (args.PageNr == 0)
{
start = new PageBreak(0, 0);
}
else
{
start = page_breaks [args.PageNr - 1];
}
PageBreak end;
if (args.PageNr < page_breaks.Count)
{
end = page_breaks [args.PageNr];
}
else
{
end = new PageBreak(-1, -1);
}
Gtk.PrintContext context = args.Context;
Gtk.TextIter position;
Gtk.TextIter end_iter;
Buffer.GetBounds(out position, out end_iter);
// Fast-forward to the right starting paragraph
while (position.Line < start.Paragraph)
{
position.ForwardLine();
}
bool done = position.Compare(end_iter) >= 0;
while (!done)
{
Gtk.TextIter line_end = position;
if (!line_end.EndsLine())
{
line_end.ForwardToLineEnd();
}
int paragraph_number = position.Line;
int indentation;
using (Pango.Layout layout = CreateParagraphLayout(
context, position, line_end, out indentation)) {
for (int line_number = 0;
line_number < layout.LineCount && !done;
line_number++)
{
// Skip the lines up to the starting line in the
// first paragraph on this page
if ((paragraph_number == start.Paragraph) &&
(line_number < start.Line))
{
continue;
}
// Break as soon as we hit the end line
if ((paragraph_number == end.Paragraph) &&
(line_number == end.Line))
{
done = true;
break;
}
Pango.LayoutLine line = layout.Lines [line_number];
Pango.Rectangle ink_rect = Pango.Rectangle.Zero;
Pango.Rectangle logical_rect = Pango.Rectangle.Zero;
line.GetExtents(ref ink_rect, ref logical_rect);
cr.MoveTo(margin_left + indentation,
cr.CurrentPoint.Y);
int line_height = Pango.Units.ToPixels(logical_rect.Height);
Cairo.PointD new_line_point = new Cairo.PointD(
margin_left + indentation,
cr.CurrentPoint.Y + line_height);
Pango.CairoHelper.ShowLayoutLine(cr, line);
cr.MoveTo(new_line_point);
}
}
position.ForwardLine();
done = done || position.Compare(end_iter) >= 0;
}
int total_height = (int)args.Context.Height;
int total_width = (int)args.Context.Width;
int footer_height = 0;
Cairo.PointD footer_anchor;
using (Pango.Layout pages_footer = CreatePagenumbersLayout(
args.Context, args.PageNr + 1, page_breaks.Count + 1)) {
Pango.Rectangle ink_footer_rect;
Pango.Rectangle logical_footer_rect;
pages_footer.GetExtents(out ink_footer_rect, out logical_footer_rect);
footer_anchor = new Cairo.PointD(
CmToPixel(0.5, args.Context.DpiX),
total_height - margin_bottom);
footer_height = Pango.Units.ToPixels(logical_footer_rect.Height);
cr.MoveTo(
total_width - Pango.Units.ToPixels(logical_footer_rect.Width) -
CmToPixel(0.5, args.Context.DpiX),
footer_anchor.Y);
Pango.CairoHelper.ShowLayoutLine(cr, pages_footer.Lines [0]);
}
cr.MoveTo(footer_anchor);
Pango.CairoHelper.ShowLayoutLine(cr, timestamp_footer.Lines [0]);
cr.MoveTo(CmToPixel(0.5, args.Context.DpiX),
total_height - margin_bottom - footer_height);
cr.LineTo(total_width - CmToPixel(0.5, args.Context.DpiX),
total_height - margin_bottom - footer_height);
cr.Stroke();
}
}
private void DrawString(PageText pt, Cairo.Context g, Cairo.Rectangle r)
{
StyleInfo si = pt.SI;
string s = pt.Text;
g.Save();
layout = Pango.CairoHelper.CreateLayout(g);
// Font drawFont = null;
// StringFormat drawFormat = null;
// Brush drawBrush = null;
// STYLE
// System.Drawing.FontStyle fs = 0;
// if (si.FontStyle == FontStyleEnum.Italic)
// fs |= System.Drawing.FontStyle.Italic;
//Pango fonts are scaled to 72dpi, Windows fonts uses 96dpi
float fontsize = (si.FontSize * 72 / 96);
var font = Pango.FontDescription.FromString(string.Format("{0} {1}", si.GetFontFamily().Name,
fontsize * PixelsX(1)));
if (si.FontStyle == FontStyleEnum.Italic)
font.Style = Pango.Style.Italic;
//
// switch (si.TextDecoration)
// {
// case TextDecorationEnum.Underline:
// fs |= System.Drawing.FontStyle.Underline;
// break;
// case TextDecorationEnum.LineThrough:
// fs |= System.Drawing.FontStyle.Strikeout;
// break;
// case TextDecorationEnum.Overline:
// case TextDecorationEnum.None:
// break;
// }
// WEIGHT
// switch (si.FontWeight)
// {
// case FontWeightEnum.Bold:
// case FontWeightEnum.Bolder:
// case FontWeightEnum.W500:
// case FontWeightEnum.W600:
// case FontWeightEnum.W700:
// case FontWeightEnum.W800:
// case FontWeightEnum.W900:
// fs |= System.Drawing.FontStyle.Bold;
// break;
// default:
// break;
// }
// try
// {
// drawFont = new Font(si.GetFontFamily(), si.FontSize, fs); // si.FontSize already in points
// }
// catch (ArgumentException)
// {
// drawFont = new Font("Arial", si.FontSize, fs); // if this fails we'll let the error pass thru
// }
//font.AbsoluteSize = (int)(PixelsX (si.FontSize));
switch (si.FontWeight)
{
case FontWeightEnum.Bold:
case FontWeightEnum.Bolder:
case FontWeightEnum.W500:
case FontWeightEnum.W600:
case FontWeightEnum.W700:
case FontWeightEnum.W800:
case FontWeightEnum.W900:
font.Weight = Pango.Weight.Bold;
break;
}
Pango.FontDescription oldfont = layout.FontDescription;
layout.FontDescription = font;
// ALIGNMENT
// drawFormat = new StringFormat();
// switch (si.TextAlign)
// {
// case TextAlignEnum.Right:
// drawFormat.Alignment = StringAlignment.Far;
// break;
// case TextAlignEnum.Center:
// drawFormat.Alignment = StringAlignment.Center;
// break;
// case TextAlignEnum.Left:
// default:
// drawFormat.Alignment = StringAlignment.Near;
// break;
// }
switch (si.TextAlign)
{
case TextAlignEnum.Right:
layout.Alignment = Pango.Alignment.Right;
break;
case TextAlignEnum.Center:
layout.Alignment = Pango.Alignment.Center;
break;
case TextAlignEnum.Left:
default:
layout.Alignment = Pango.Alignment.Left;
break;
}
layout.Width = Pango.Units.FromPixels((int)(r.Width - si.PaddingLeft - si.PaddingRight - 2));
// layout.Width = (int)Pango.Units.FromPixels((int)r.Width);
layout.SetText(s);
// if (pt.SI.WritingMode == WritingModeEnum.tb_rl)
// {
// drawFormat.FormatFlags |= StringFormatFlags.DirectionRightToLeft;
// drawFormat.FormatFlags |= StringFormatFlags.DirectionVertical;
// }
// switch (si.VerticalAlign)
// {
// case VerticalAlignEnum.Bottom:
// drawFormat.LineAlignment = StringAlignment.Far;
// break;
// case VerticalAlignEnum.Middle:
// drawFormat.LineAlignment = StringAlignment.Center;
// break;
// case VerticalAlignEnum.Top:
// default:
// drawFormat.LineAlignment = StringAlignment.Near;
// break;
// }
//
Pango.Rectangle logical;
Pango.Rectangle ink;
layout.GetExtents(out ink, out logical);
double height = logical.Height / Pango.Scale.PangoScale;
double y = 0;
switch (si.VerticalAlign)
{
case VerticalAlignEnum.Top:
y = r.Y + si.PaddingTop;
break;
case VerticalAlignEnum.Middle:
y = r.Y + (r.Height - height) / 2;
break;
case VerticalAlignEnum.Bottom:
y = r.Y + (r.Height - height) - si.PaddingBottom;
break;
}
// draw the background
DrawBackground(g, r, si);
// adjust drawing rectangle based on padding
// Cairo.Rectangle r2 = new Cairo.Rectangle(r.X + si.PaddingLeft,
// r.Y + si.PaddingTop,
// r.Width - si.PaddingLeft - si.PaddingRight,
// r.Height - si.PaddingTop - si.PaddingBottom);
Cairo.Rectangle box = new Cairo.Rectangle(
r.X + si.PaddingLeft + 1,
y,
r.Width,
r.Height);
//drawBrush = new SolidBrush(si.Color);
g.Color = si.Color.ToCairoColor();
// if (pt.NoClip) // request not to clip text
// {
// g.DrawString(pt.Text, drawFont, drawBrush, new PointF(r.Left, r.Top), drawFormat);
// //HighlightString(g, pt, new RectangleF(r.Left, r.Top, float.MaxValue, float.MaxValue),drawFont, drawFormat);
// }
// else
// {
// g.DrawString(pt.Text, drawFont, drawBrush, r2, drawFormat);
// //HighlightString(g, pt, r2, drawFont, drawFormat);
// }
g.MoveTo(box.X, box.Y);
Pango.CairoHelper.ShowLayout(g, layout);
layout.FontDescription = oldfont;
g.Restore();
}
public void DrawText(int x, int y, String text, TextAlign align)
{
Pango.FontDescription fd = Pango.FontDescription.FromString(FontFamily);
fd.Size = Pango.Units.FromPixels(FontSize);
if ((FontStyle & FontStyle.Bold) != 0)
{
fd.Weight = Pango.Weight.Bold;
}
if ((FontStyle & FontStyle.Italic) != 0)
{
fd.Style = Pango.Style.Italic;
}
Pango.Font font = parent.PangoContext.LoadFont(fd);
Pango.Language lang = Pango.Language.FromString("en");
Pango.FontMetrics metrics = font.GetMetrics(lang);
int estWidth = text.Length * metrics.ApproximateCharWidth * 3 / 2;
Pango.Context pango = parent.PangoContext;
Pango.Layout layout = new Pango.Layout(pango)
{
Width = estWidth,
Wrap = Pango.WrapMode.Word, Alignment = Pango.Alignment.Left,
FontDescription = fd
};
int color = this.Color;
ushort cRed = (ushort)((color >> 16) & 0xFF);
ushort cGreen = (ushort)((color >> 8) & 0xFF);
ushort cBlue = (ushort)(color & 0xFF);
layout.Attributes = new Pango.AttrList();
layout.Attributes.Insert(new Pango.AttrForeground(cRed, cGreen, cBlue));
layout.SetText(text);
double x0;
double y0;
double scale = 1.0 / Pango.Scale.PangoScale;
Pango.Rectangle dummy;
Pango.Rectangle extents;
layout.GetExtents(out dummy, out extents);
switch ((TextAlign)((int)align & 7))
{
case TextAlign.Right:
x0 = x - scale * extents.Width;
break;
case TextAlign.Center:
x0 = x - 0.5 * scale * extents.Width;
break;
default:
x0 = x;
break;
}
switch ((TextAlign)((int)align & ~7))
{
case TextAlign.Top:
y0 = y;
break;
case TextAlign.Bottom:
y0 = y - scale * (metrics.Ascent + metrics.Descent);
break;
case TextAlign.VCenter:
y0 = y - 0.5 * scale * metrics.Ascent;
break;
default:
y0 = y - scale * metrics.Ascent;
break;
}
Matrix srcM = Context.Matrix;
Pango.Matrix dstM;
dstM.X0 = 0.0;
dstM.Xx = srcM.Xx;
dstM.Xy = srcM.Xy;
dstM.Y0 = 0.0;
dstM.Yx = srcM.Yx;
dstM.Yy = srcM.Yy;
parent.PangoContext.Matrix = dstM;
srcM.TransformPoint(ref x0, ref y0);
parent.GdkWindow.DrawLayout(parent.Style.TextGC(StateType.Normal),
(int)(0.5 + x0), (int)(0.5 + y0), layout);
dstM.Xx = 1.0;
dstM.Yy = 1.0;
parent.PangoContext.Matrix = dstM;
}
public void GetExtents(out Pango.Rectangle ink_rect, out Pango.Rectangle logical_rect)
{
layout.GetExtents(out ink_rect, out logical_rect);
}
protected override void PaintWidget(Cairo.Context ctx, int w, int h)
{
ctx.SetFill(0.0d, 0.0d, 0.0d);
ctx.Rectangle(0.0d, Offset, w, h - Offset);
ctx.Fill();
ctx.SetFill(BlueprintStyle.BluePrint);
ctx.Rectangle(0.0d, 0.0d, w, Offset);
ctx.Fill();
double wr = w - 2.0d * Offset;
double ew = wr / (max - min + 1 + shaft * (max - min));
this.flapWidth = ew;
double xc = Offset;
for (int i = min; i <= max; i++)
{
if (i != current)
{
ctx.Rectangle(xc, Offset, ew, h - 2.0d * Offset);
}
xc += (1.0d + shaft) * ew;
}
ctx.FillPreserve();
LinearGradient p = new LinearGradient(0.0d, Offset, 0.0d, Offset + 10.0d);
double fctr = 0.5d;
for (double y = 0.0d; y <= 1.0d; y += 0.1d)
{
p.AddColorStopRgb(y, new Color(fctr * BlueprintStyle.BluePrintShadow.R, fctr * BlueprintStyle.BluePrintShadow.G, fctr * BlueprintStyle.BluePrintShadow.B));
fctr += 0.05d;
}
ctx.SetFill(p);
ctx.Fill();
ctx.Rectangle(Offset + (1.0d + shaft) * ew * (current - min), Offset, ew, h - 2.0d * Offset);
ctx.SetFill(BlueprintStyle.BluePrint);
ctx.Fill();
xc = Offset;
ctx.SetFill(BlueprintStyle.HardWhite);
ctx.MoveTo(0.0d, Offset);
ctx.LineTo(Offset, Offset);
for (int i = min; i <= max; i++)
{
ctx.LineTo(xc, h - Offset);
ctx.LineTo(xc + ew, h - Offset);
ctx.LineTo(xc + ew, Offset);
xc += (1.0d + shaft) * ew;
if (i < max)
{
ctx.LineTo(xc, Offset);
}
}
ctx.LineTo(w - Offset, Offset);
ctx.LineTo(w, Offset);
ctx.MoveTo(Offset, Offset);
ctx.LineTo(Offset + (1.0d + shaft) * ew * (current - min), Offset);
ctx.MoveTo(w - Offset, Offset);
ctx.LineTo(w - Offset + (1.0d + shaft) * ew * (current - max), Offset);
ctx.Stroke();
xc = Offset + 0.5d * ew;
IEnumerable <string> namei = this.names.Skip(this.min);
IEnumerator <string> enume = namei.GetEnumerator();
for (int i = min; i <= max && enume.MoveNext(); i++)
{
string name = enume.Current;
if (name != null)
{
#if PANGO
Pango.Layout pglay = Pango.CairoHelper.CreateLayout(ctx);
pglay.SetText(name);
Pango.Rectangle ra, rb;
pglay.GetExtents(out ra, out rb);
double tew = rb.Width / 1024.0d;
double teh = rb.Height / 1024.0d;
#else
TextExtents te = ctx.TextExtents(name);
double tew = te.Width;
double teh = te.Height;
#endif
ctx.MoveTo(xc - 0.5d * tew, 0.5d * (h + teh));
ctx.ShowText(name);
xc += (1.0d + shaft) * ew;
}
}
}