From 6a6cc0ce8b5209c9ffd37f764d490b606ab332fa Mon Sep 17 00:00:00 2001
From: Mike Kestner <mkestner@gmail.com>
Date: Thu, 10 Aug 2006 17:32:11 +0000
Subject: [PATCH] 2006-08-10 Mikkel Kruse Johnsen <mikkel@linet.dk>
* sample/GtkDemo/DemoPrinting.cs : new Gtk.Print sample.
* sample/GtkDemo/Makefile.am : build new source.
svn path=/trunk/gtk-sharp/; revision=63610
---
ChangeLog | 5 ++
sample/GtkDemo/DemoPrinting.cs | 136 +++++++++++++++++++++++++++++++++
sample/GtkDemo/Makefile.am | 5 +-
3 files changed, 144 insertions(+), 2 deletions(-)
create mode 100644 sample/GtkDemo/DemoPrinting.cs
diff --git a/ChangeLog b/ChangeLog
index 5b6634c29..82694e9f9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2006-08-10 Mikkel Kruse Johnsen <mikkel@linet.dk>
+
+ * sample/GtkDemo/DemoPrinting.cs : new Gtk.Print sample.
+ * sample/GtkDemo/Makefile.am : build new source.
+
2006-08-10 Mike Kestner <mkestner@novell.com>
* pango/Pango.metadata : add library attr to pango_cairo methods.
diff --git a/sample/GtkDemo/DemoPrinting.cs b/sample/GtkDemo/DemoPrinting.cs
new file mode 100644
index 000000000..82da21a97
--- /dev/null
+++ b/sample/GtkDemo/DemoPrinting.cs
@@ -0,0 +1,136 @@
+/* Printing
+ *
+ * GtkPrintOperation offers a simple API to support printing in a cross-platform way.
+ */
+
+using System;
+using System.IO;
+using System.Reflection;
+using Gtk;
+using Cairo;
+
+namespace GtkDemo
+{
+ [Demo ("Printing", "DemoPrinting.cs")]
+ public class DemoPrinting
+ {
+ private static double headerHeight = (10*72/25.4);
+ private static double headerGap = (3*72/25.4);
+ private static int pangoScale = 1024;
+
+ private PrintOperation print;
+
+ private string fileName = "DemoPrinting.cs";
+ private double fontSize = 12.0;
+ private int linesPerPage;
+ private string[] lines;
+ private int numLines;
+ private int numPages;
+
+ public DemoPrinting ()
+ {
+ print = new PrintOperation ();
+
+ print.BeginPrint += OnBeginPrint;
+ print.DrawPage += OnDrawPage;
+ print.EndPrint += OnEndPrint;
+
+ print.Run (PrintOperationAction.PrintDialog, null);
+ }
+
+ private void OnBeginPrint (object obj, Gtk.BeginPrintArgs args)
+ {
+ string contents;
+ double height;
+
+ PrintContext context = args.Context;
+ height = context.Height;
+
+ linesPerPage = (int)Math.Floor(height / fontSize);
+ contents = LoadFile("DemoPrinting.cs");
+
+ lines = contents.Split('\n');
+
+ numLines = lines.Length;
+ numPages = (numLines - 1) / linesPerPage + 1;
+
+ print.NPages = numPages;
+ }
+
+ private string LoadFile (string filename)
+ {
+ Stream file = Assembly.GetExecutingAssembly ().GetManifestResourceStream
+(filename);
+ if (file == null && File.Exists (filename)) {
+ file = File.OpenRead (filename);
+ }
+ if (file == null) {
+ return "File not found";
+ }
+
+ StreamReader sr = new StreamReader (file);
+ return sr.ReadToEnd ();
+ }
+
+ 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++;
+ }
+ layout = null;
+ }
+
+ private void OnEndPrint (object obj, Gtk.EndPrintArgs args)
+ {
+ }
+ }
+}
diff --git a/sample/GtkDemo/Makefile.am b/sample/GtkDemo/Makefile.am
index d5a175410..fabcd50b4 100644
--- a/sample/GtkDemo/Makefile.am
+++ b/sample/GtkDemo/Makefile.am
@@ -1,5 +1,5 @@
assemblies = ../../glib/glib-sharp.dll ../../pango/pango-sharp.dll ../../atk/atk-sharp.dll ../../gdk/gdk-sharp.dll ../../gtk/gtk-sharp.dll
-references = $(addprefix /r:, $(assemblies))
+references = $(addprefix /r:, $(assemblies)) -r:Mono.Cairo
TARGETS = GtkDemo.exe
DEBUGS = $(addsuffix .mdb, $(TARGETS))
CLEANFILES = $(TARGETS) $(DEBUGS)
@@ -31,7 +31,8 @@ sources = \
DemoStockBrowser.cs \
DemoTextView.cs \
DemoTreeStore.cs \
- DemoUIManager.cs
+ DemoUIManager.cs \
+ DemoPrinting.cs
images = \
images/gnome-foot.png,gnome-foot.png \