void PrintHeader(Cairo.Context cr, PrintContext context, int page, ref double xPos, ref double yPos)
{
if (headerLines == 0)
{
return;
}
ResetAttributes();
layout.SetText(Subst(headerText, page));
int wout, hout;
layout.GetSize(out wout, out hout);
double w = wout / Pango.Scale.PangoScale;
cr.MoveTo((pageWidth - w) / 2, yPos);
Pango.CairoHelper.ShowLayout(cr, layout);
yPos += lineHeight * headerLines;
if (settings.HeaderSeparatorWeight > 0)
{
cr.LineWidth = settings.HeaderSeparatorWeight;
cr.MoveTo(pageWidth / 3, yPos + (settings.HeaderPadding / 2));
cr.LineTo(2 * pageWidth / 3, yPos + (settings.HeaderPadding / 2));
cr.Stroke();
}
yPos += settings.HeaderPadding;
}
private void OnDrawPage(object obj, Gtk.DrawPageArgs args)
{
PrintContext context = args.Context;
Cairo.Context cr = context.CairoContext;
double width = context.Width;
cr.Rectangle(0, 0, width, headerHeight);
cr.SetSourceRGB(0.8, 0.8, 0.8);
cr.FillPreserve();
cr.SetSourceRGB(0, 0, 0);
cr.LineWidth = 1;
cr.Stroke();
Pango.Layout layout = context.CreatePangoLayout();
Pango.FontDescription desc = Pango.FontDescription.FromString("sans 14");
layout.FontDescription = desc;
layout.SetText(fileName);
layout.Width = (int)width;
layout.Alignment = Pango.Alignment.Center;
int layoutWidth, layoutHeight;
layout.GetSize(out layoutWidth, out layoutHeight);
double textHeight = (double)layoutHeight / (double)pangoScale;
cr.MoveTo(width / 2, (headerHeight - textHeight) / 2);
Pango.CairoHelper.ShowLayout(cr, layout);
string pageStr = String.Format("{0}/{1}", args.PageNr + 1, numPages);
layout.SetText(pageStr);
layout.Alignment = Pango.Alignment.Right;
cr.MoveTo(width - 2, (headerHeight - textHeight) / 2);
Pango.CairoHelper.ShowLayout(cr, layout);
layout = null;
layout = context.CreatePangoLayout();
desc = Pango.FontDescription.FromString("mono");
desc.Size = (int)(fontSize * pangoScale);
layout.FontDescription = desc;
cr.MoveTo(0, headerHeight + headerGap);
int line = args.PageNr * linesPerPage;
for (int i = 0; i < linesPerPage && line < numLines; i++)
{
layout.SetText(lines[line]);
Pango.CairoHelper.ShowLayout(cr, layout);
cr.RelMoveTo(0, fontSize);
line++;
}
(cr as IDisposable).Dispose();
layout = null;
}
public Size GetSize(object backend)
{
Pango.Layout tl = (Pango.Layout)backend;
int w, h;
tl.GetSize(out w, out h);
return(new Size((double)w / (double)Pango.Scale.PangoScale, (double)h / (double)Pango.Scale.PangoScale));
}
protected Size GetTextSize(Pango.Layout layout)
{
int textWidth, textHeight;
layout.GetSize(out textWidth, out textHeight);
textWidth = Pango.Units.ToPixels(textWidth);
textHeight = Pango.Units.ToPixels(textHeight);
return(new Size(textWidth, textHeight));
}
private Size MeasureString(Pango.FontDescription font, string s)
{
Pango.Layout ly = this.Layout;
ly.SetText(s);
ly.FontDescription = font;
int width, height;
ly.GetSize(out width, out height);
return(new Size((int)(width / 1024.0f), (int)(height / 1024.0f)));
}
public void GetSize(out int width, out int height)
{
if (this.width >= 0)
{
width = this.width;
height = this.height;
return;
}
layout.GetSize(out width, out height);
this.width = width;
this.height = height;
}
protected void MeasureString(Cairo.Context graphics, string s, out int width, out int height)
{
Pango.FontDescription font = Settings.Font;
Pango.Layout layout = Pango.CairoHelper.CreateLayout(graphics);
layout.FontDescription = font;
layout.SetText(s);
layout.GetSize(out width, out height);
height = (int)(height / Pango.Scale.PangoScale);
width = (int)(width / Pango.Scale.PangoScale);
}
protected virtual void DrawLabel(Cairo.Context graphics)
{
string s = Label;
if (String.IsNullOrEmpty(s))
{
return;
}
if (MouseFocus)
{
graphics.SetSourceRGB(0.3, 0.6, 0.3);
}
else
{
graphics.SetSourceRGB(0.3, 0.3, 0.3);
}
double uw = graphics.LineWidth;
graphics.Save();
graphics.Scale(uw, uw);
Pango.Layout layout = Pango.CairoHelper.CreateLayout(graphics);
Pango.CairoHelper.UpdateLayout(graphics, layout);
layout.FontDescription = Settings.Font;
layout.SetText(s);
int width, height;
layout.GetSize(out width, out height);
width = (int)(width / Pango.Scale.PangoScale);
graphics.MoveTo((Allocation.Width / uw - width) / 2.0, Allocation.Height / uw + 2);
Pango.CairoHelper.ShowLayout(graphics, layout);
graphics.Restore();
}
private int RenderNotice(string text, Cairo.Context gc, int yOffset)
{
gc.Save();
int leftPadding = 20;
int rightPadding = 20;
int topPadding = 20 + yOffset;
int innerPadding = 5;
int textWidth, textHeight;
// Setup text
Pango.Layout layout = Pango.CairoHelper.CreateLayout(gc);
layout.FontDescription = this.PangoContext.FontDescription.Copy();
layout.FontDescription.Size = layout.FontDescription.Size + Pango.Units.FromPixels(3);
layout.Wrap = Pango.WrapMode.Word;
layout.Width = Pango.Units.FromPixels(this.Allocation.Width - (leftPadding + innerPadding + noticeIcon.Width + innerPadding + rightPadding + innerPadding));
layout.SetMarkup(text);
layout.GetSize(out textWidth, out textHeight);
textWidth = Pango.Units.ToPixels(textWidth);
textHeight = Pango.Units.ToPixels(textHeight);
// Render background
gc.Color = new Cairo.Color(0.59, 0.59, 0.59, 0.6);
CreateRoundedRectPath(gc, leftPadding, topPadding, textWidth + 50, textHeight + (innerPadding * 2.0), 10);
gc.Fill();
// Render icon
RenderPixbufToSurf(gc, noticeIcon, leftPadding + innerPadding, topPadding + innerPadding + ((textHeight / 2.0) - (noticeIcon.Height / 2.0)));
// Render text
gc.MoveTo(leftPadding + innerPadding + noticeIcon.Width + innerPadding, topPadding + innerPadding);
gc.Color = white;
Pango.CairoHelper.ShowLayout(gc, layout);
gc.Restore();
return(textHeight + topPadding - yOffset);
}
protected override void OnDrawPage(PrintContext context, int pageNr)
{
using (var cr = context.CairoContext) {
double xPos = 0, yPos = 0;
PrintHeader(cr, context, pageNr, ref xPos, ref yPos);
int startLine = pageNr * linesPerPage;
int endLine = Math.Min(startLine + linesPerPage - 1, doc.LineCount);
//FIXME: use proper 1-layout-per-line
for (int i = startLine; i < endLine; i++)
{
var line = doc.GetLine(i + 1);
if (!settings.UseHighlighting)
{
string text = doc.GetTextAt(line);
text = text.Replace("\t", new string (' ', settings.TabSize));
layout.SetText(text);
cr.MoveTo(xPos, yPos);
Pango.CairoHelper.ShowLayout(cr, layout);
yPos += lineHeight;
continue;
}
Chunk startChunk = doc.SyntaxMode.GetChunks(doc, style, line, line.Offset, line.Length);
for (Chunk chunk = startChunk; chunk != null; chunk = chunk != null ? chunk.Next : null)
{
ChunkStyle chunkStyle = chunk != null?chunk.GetChunkStyle(style) : null;
string text = chunk.GetText(doc);
text = text.Replace("\t", new string (' ', settings.TabSize));
layout.SetText(text);
var atts = ResetAttributes();
atts.Insert(new Pango.AttrForeground(chunkStyle.Color.Red, chunkStyle.Color.Green, chunkStyle.Color.Blue));
if (chunkStyle.Bold)
{
atts.Insert(new Pango.AttrWeight(Pango.Weight.Bold));
}
if (chunkStyle.Italic)
{
atts.Insert(new Pango.AttrStyle(Pango.Style.Italic));
}
if (chunkStyle.Underline)
{
atts.Insert(new Pango.AttrUnderline(Pango.Underline.Single));
}
cr.MoveTo(xPos, yPos);
Pango.CairoHelper.ShowLayout(cr, layout);
int wout, hout;
layout.GetSize(out wout, out hout);
double w = wout / Pango.Scale.PangoScale;
xPos += w;
if (w > pageWidth)
{
break;
}
}
xPos = 0;
yPos += lineHeight;
}
PrintFooter(cr, context, pageNr, ref xPos, ref yPos);
}
}
protected override async void OnDrawPage(PrintContext context, int pageNr)
{
using (var cr = context.CairoContext) {
double xPos = 0, yPos = 0;
PrintHeader(cr, context, pageNr, ref xPos, ref yPos);
int startLine = pageNr * linesPerPage;
int endLine = Math.Min(startLine + linesPerPage - 1, editor.LineCount);
var theme = editor.Options.GetEditorTheme();
//FIXME: use proper 1-layout-per-line
for (int i = startLine; i < endLine; i++)
{
var line = editor.GetLine(i + 1);
if (!settings.UseHighlighting)
{
string text = editor.GetTextAt(line);
text = text.Replace("\t", new string (' ', settings.TabSize));
layout.SetText(text);
cr.MoveTo(xPos, yPos);
Pango.CairoHelper.ShowLayout(cr, layout);
yPos += lineHeight;
continue;
}
var highlightedLine = await editor.SyntaxHighlighting.GetHighlightedLineAsync(line, default(CancellationToken));
var lineOffset = line.Offset;
foreach (var chunk in highlightedLine.Segments)
{
var chunkStyle = theme.GetChunkStyle(chunk.ScopeStack);
string text = editor.GetTextAt(lineOffset + chunk.Offset, chunk.Length);
text = text.Replace("\t", new string (' ', settings.TabSize));
layout.SetText(text);
var atts = ResetAttributes();
var foreground = (Cairo.Color)chunkStyle.Foreground;
atts.Insert(new Pango.AttrForeground((ushort)(foreground.R * ushort.MaxValue), (ushort)(foreground.G * ushort.MaxValue), (ushort)(foreground.B * ushort.MaxValue)));
if (chunkStyle.FontWeight != Xwt.Drawing.FontWeight.Normal)
{
atts.Insert(new Pango.AttrWeight((Pango.Weight)chunkStyle.FontWeight));
}
if (chunkStyle.FontStyle != Xwt.Drawing.FontStyle.Normal)
{
atts.Insert(new Pango.AttrStyle((Pango.Style)chunkStyle.FontStyle));
}
if (chunkStyle.Underline)
{
atts.Insert(new Pango.AttrUnderline(Pango.Underline.Single));
}
cr.MoveTo(xPos, yPos);
Pango.CairoHelper.ShowLayout(cr, layout);
int wout, hout;
layout.GetSize(out wout, out hout);
double w = wout / Pango.Scale.PangoScale;
xPos += w;
if (w > pageWidth)
{
break;
}
}
xPos = 0;
yPos += lineHeight;
}
PrintFooter(cr, context, pageNr, ref xPos, ref yPos);
}
}
private void GetCoordLayoutDetails(Pango.
Context context,
FontDescription
font)
{
if (!showCoords)
{
fontwidth = 0;
fontheight = 0;
return;
}
layoutx = new Pango.Layout[8];
layouty = new Pango.Layout[8];
char chx = 'a';
char chy = '1';
fontwidth = 0;
fontheight = 0;
for (int i = 0; i < layoutx.Length;
i++, chx++, chy++)
{
Pango.Layout layout;
layoutx[i] = layout =
new Pango.Layout (context);
layout.FontDescription = font;
layout.SetText (chx.ToString ());
int w, h;
layout.GetSize (out w, out h);
h = (int) Math.Round (h /
Pango.Scale.
PangoScale);
if (h > fontheight)
fontheight = h;
layouty[i] = layout =
new Pango.Layout (context);
layout.FontDescription = font;
layout.SetText (chy.ToString ());
layout.GetSize (out w, out h);
w = (int) Math.Round (w /
Pango.Scale.
PangoScale);
if (w > fontwidth)
fontwidth = w;
}
}
public void GetSize(out int width, out int height)
{
layout.GetSize(out width, out height);
}
protected override void OnDrawPage(PrintContext context, int pageNr)
{
using (var cr = context.CairoContext) {
double xPos = 0, yPos = 0;
PrintHeader(cr, context, pageNr, ref xPos, ref yPos);
int startLine = pageNr * linesPerPage;
int endLine = Math.Min(startLine + linesPerPage - 1, doc.LineCount);
//FIXME: use proper 1-layout-per-line
for (int i = startLine; i < endLine; i++)
{
var line = doc.GetLine(i + 1);
if (!settings.UseHighlighting)
{
string text = doc.GetTextAt(line);
text = text.Replace("\t", new string (' ', settings.TabSize));
layout.SetText(text);
cr.MoveTo(xPos, yPos);
Pango.CairoHelper.ShowLayout(cr, layout);
yPos += lineHeight;
continue;
}
var startChunk = doc.SyntaxMode.GetChunks(style, line, line.Offset, line.LengthIncludingDelimiter);
foreach (Chunk chunk in startChunk)
{
var chunkStyle = chunk != null?style.GetChunkStyle(chunk) : null;
string text = doc.GetTextAt(chunk);
text = text.Replace("\t", new string (' ', settings.TabSize));
layout.SetText(text);
var atts = ResetAttributes();
atts.Insert(new Pango.AttrForeground((ushort)(chunkStyle.Foreground.R * ushort.MaxValue), (ushort)(chunkStyle.Foreground.G * ushort.MaxValue), (ushort)(chunkStyle.Foreground.B * ushort.MaxValue)));
if (chunkStyle.FontWeight != Xwt.Drawing.FontWeight.Normal)
{
atts.Insert(new Pango.AttrWeight((Pango.Weight)chunkStyle.FontWeight));
}
if (chunkStyle.FontStyle != Xwt.Drawing.FontStyle.Normal)
{
atts.Insert(new Pango.AttrStyle((Pango.Style)chunkStyle.FontStyle));
}
if (chunkStyle.Underline)
{
atts.Insert(new Pango.AttrUnderline(Pango.Underline.Single));
}
cr.MoveTo(xPos, yPos);
Pango.CairoHelper.ShowLayout(cr, layout);
int wout, hout;
layout.GetSize(out wout, out hout);
double w = wout / Pango.Scale.PangoScale;
xPos += w;
if (w > pageWidth)
{
break;
}
}
xPos = 0;
yPos += lineHeight;
}
PrintFooter(cr, context, pageNr, ref xPos, ref yPos);
}
}