[tracker/needle: 19/56] tracker-needle: Added cellrenderer for non-file based items

[Martyn James Russell <mr src gnome org>]

commit 850e10c60d816af13bd2c4440b94edba88c6dedc
Author: Martyn Russell <martyn lanedo com>
Date:   Thu Jul 29 08:32:10 2010 +0100

    tracker-needle: Added cellrenderer for non-file based items

 src/tracker-needle/Makefile.am                     |    1 +
 src/tracker-needle/tracker-cell-renderer-text.vala |  102 ++++++++++++++++++++
 src/tracker-needle/tracker-needle.vala             |    2 +-
 3 files changed, 104 insertions(+), 1 deletions(-)
---
diff --git a/src/tracker-needle/Makefile.am b/src/tracker-needle/Makefile.am
index 03e79de..7255f20 100644
--- a/src/tracker-needle/Makefile.am
+++ b/src/tracker-needle/Makefile.am
@@ -3,6 +3,7 @@ include $(top_srcdir)/Makefile.decl
 bin_PROGRAMS = tracker-needle
 
 tracker_needle_VALASOURCES = 					\
+	tracker-cell-renderer-text.vala				\
 	tracker-needle.vala                         \
 	tracker-stats.vala
 
diff --git a/src/tracker-needle/tracker-cell-renderer-text.vala b/src/tracker-needle/tracker-cell-renderer-text.vala
new file mode 100644
index 0000000..f023a4d
--- /dev/null
+++ b/src/tracker-needle/tracker-cell-renderer-text.vala
@@ -0,0 +1,102 @@
+//
+// Copyright 2010, Martyn Russell <martyn lanedo com>
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+// 02110-1301, USA.
+//
+
+class Tracker.CellRendererText : Gtk.CellRendererText {
+	// FIXME: Chain text and set is_valid to false when changes
+	//public string text { get; set; }
+	public string subtext { get; set; }
+	public bool show_subtext { get; set; }
+	private bool is_selected;
+	private bool is_valid;
+
+	public override void get_size (Gtk.Widget     widget,
+	                               Gdk.Rectangle? cell_area,
+	                               out int        x_offset,
+	                               out int        y_offset,
+	                               out int        width,
+	                               out int        height) {
+		update_text (widget, is_selected);
+
+		base.get_size (widget, cell_area, out x_offset, out y_offset, out width, out height);
+	}
+	
+	public override void render (Gdk.Window            window,
+	                             Gtk.Widget            widget,
+	                             Gdk.Rectangle         background_area,
+	                             Gdk.Rectangle         cell_area,
+	                             Gdk.Rectangle         expose_area,
+	                             Gtk.CellRendererState flags) {
+		bool selected = Gtk.CellRendererState.SELECTED in flags;
+
+		update_text (widget, selected);
+		
+		base.render (window, widget, background_area, cell_area, expose_area, flags);
+	}
+
+	private void update_text (Gtk.Widget widget,
+	                          bool       selected) {
+		if (is_valid && is_selected == selected) {
+			return;
+		}
+
+		var style = widget.get_style ();
+		var attr_list = new Pango.AttrList ();
+		uint start = (uint) text.length;
+		
+//		var attr_style = new Pango.Style (Pango.Style.ITALIC);
+//		attr_style.start_index = start
+//		attr_style.end_index = -1;
+//		attr_list.insert (attr_style);
+
+		if (!selected) {
+			var c = style.text_aa[Gtk.StateType.NORMAL];
+			var attr_color = Pango.attr_foreground_new (c.red, c.green, c.blue);
+			attr_color.start_index = start;
+			attr_color.end_index = -1;
+			attr_list.insert ((owned) attr_color);
+		}
+
+		Pango.FontDescription fd = style.font_desc;
+		var attr_size = new Pango.AttrSize ((int) (fd.get_size () / 1.2));
+		
+		attr_size.start_index = start;
+		attr_size.end_index = -1;
+		attr_list.insert ((owned) attr_size);
+
+		string str;
+
+		if (subtext == null || subtext.length < 1 || show_subtext) {
+			str = text;
+		} else {
+			str = "%s\n%s".printf (text, subtext);
+		}
+
+		debug ("str:'%s'\n", str);
+		this.visible = true;
+		this.weight = Pango.Weight.NORMAL;
+		this.text = str;
+		this.attributes = attr_list;
+		this.xpad = 0;
+		this.ypad = 1;
+
+		is_selected = selected;
+		// FIXME: Chain text and set is_valid here to true
+		//is_valid = true;
+	}
+}
diff --git a/src/tracker-needle/tracker-needle.vala b/src/tracker-needle/tracker-needle.vala
index 003930d..f0c02dc 100644
--- a/src/tracker-needle/tracker-needle.vala
+++ b/src/tracker-needle/tracker-needle.vala
@@ -151,7 +151,7 @@ public class TrackerNeedle {
 		col.pack_start (renderer1, false);
 		col.add_attribute (renderer1, "pixbuf", 0);
 
-		var renderer2 = new CellRendererText ();
+		var renderer2 = new Tracker.CellRendererText ();
 		col.pack_start (renderer2, true);
 		col.add_attribute (renderer2, "text", 4);