[tracker/needle: 36/41] tracker-needle: Added tracker-view.vala to handle different result set views

[Martyn James Russell <mr src gnome org>]

commit 8d691dc79590dac10e83d0cca27cc7d7561bb474
Author: Martyn Russell <martyn lanedo com>
Date:   Thu Sep 9 23:33:53 2010 +0100

    tracker-needle: Added tracker-view.vala to handle different result set views

 src/tracker-needle/Makefile.am         |    3 +-
 src/tracker-needle/tracker-needle.ui   |   35 +--------------
 src/tracker-needle/tracker-needle.vala |   61 +++++++++++++++++++++-----
 src/tracker-needle/tracker-view.vala   |   76 ++++++++++++++++++++++++++++++++
 4 files changed, 129 insertions(+), 46 deletions(-)
---
diff --git a/src/tracker-needle/Makefile.am b/src/tracker-needle/Makefile.am
index 2fbb8a8..bcd03ac 100644
--- a/src/tracker-needle/Makefile.am
+++ b/src/tracker-needle/Makefile.am
@@ -7,7 +7,8 @@ tracker_needle_VALASOURCES = 					\
 	tracker-needle.vala \
 	tracker-query.vala \
 	tracker-stats.vala \
-	tracker-utils.vala
+	tracker-utils.vala \
+	tracker-view.vala
 
 tracker_needle_SOURCES = 					\
 	$(tracker_needle_VALASOURCES:.vala=.c)
diff --git a/src/tracker-needle/tracker-needle.ui b/src/tracker-needle/tracker-needle.ui
index e5f3fd2..afce65b 100644
--- a/src/tracker-needle/tracker-needle.ui
+++ b/src/tracker-needle/tracker-needle.ui
@@ -172,40 +172,7 @@
           <object class="GtkHBox" id="hbox_view">
             <property name="visible">True</property>
             <child>
-              <object class="GtkScrolledWindow" id="scrolledwindow_treeview">
-                <property name="visible">True</property>
-                <property name="can_focus">True</property>
-                <property name="hscrollbar_policy">never</property>
-                <property name="vscrollbar_policy">automatic</property>
-                <child>
-                  <object class="GtkTreeView" id="treeview_results">
-                    <property name="can_focus">True</property>
-                    <property name="model">liststore_results</property>
-                    <property name="enable_search">False</property>
-                    <property name="tooltip_column">2</property>
-                  </object>
-                </child>
-              </object>
-              <packing>
-                <property name="position">0</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkScrolledWindow" id="scrolledwindow_iconview">
-                <property name="visible">True</property>
-                <property name="can_focus">True</property>
-                <property name="hscrollbar_policy">automatic</property>
-                <property name="vscrollbar_policy">automatic</property>
-                <child>
-                  <object class="GtkIconView" id="iconview_results">
-                    <property name="can_focus">True</property>
-                    <property name="model">liststore_results</property>
-                  </object>
-                </child>
-              </object>
-              <packing>
-                <property name="position">1</property>
-              </packing>
+              <placeholder/>
             </child>
           </object>
           <packing>
diff --git a/src/tracker-needle/tracker-needle.vala b/src/tracker-needle/tracker-needle.vala
index ea6107b..2795714 100644
--- a/src/tracker-needle/tracker-needle.vala
+++ b/src/tracker-needle/tracker-needle.vala
@@ -19,6 +19,7 @@
 
 using Gtk;
 using Tracker.Sparql;
+using Tracker.View;
 
 [CCode (cname = "TRACKER_UI_DIR")]
 extern static const string UIDIR;
@@ -37,9 +38,11 @@ public class TrackerNeedle {
 	private ToggleToolButton find_in_titles;
 	private Entry search;
 	private ToolButton show_stats;
-	private ScrolledWindow sw_treeview;
+	private HBox view;
+	private Tracker.View sw_noresults;
+	private Tracker.View sw_treeview;
 	private TreeView treeview;
-	private ScrolledWindow sw_iconview;
+	private Tracker.View sw_iconview;
 	private IconView iconview;
 	private uint last_search_id = 0;
 	private ListStore store;
@@ -107,10 +110,23 @@ public class TrackerNeedle {
 		show_stats = builder.get_object ("toolbutton_show_stats") as ToolButton;
 		show_stats.clicked.connect (show_stats_clicked);
 
-		sw_treeview = builder.get_object ("scrolledwindow_treeview") as ScrolledWindow;
-		treeview = builder.get_object ("treeview_results") as TreeView;
-		sw_iconview = builder.get_object ("scrolledwindow_iconview") as ScrolledWindow;
-		iconview = builder.get_object ("iconview_results") as IconView;
+		view = builder.get_object ("hbox_view") as HBox;
+
+		sw_noresults = new Tracker.View (Tracker.View.Display.NO_RESULTS);
+		view.pack_start (sw_noresults, true, true, 0);
+
+		sw_treeview = new Tracker.View (Tracker.View.Display.CATEGORIES);
+		treeview = (TreeView) sw_treeview.get_child ();
+		view.pack_start (sw_treeview, true, true, 0);
+		//sw_treeview = builder.get_object ("scrolledwindow_treeview") as ScrolledWindow;
+		//treeview = builder.get_object ("treeview_results") as TreeView;
+
+		sw_iconview = new Tracker.View (Tracker.View.Display.FILE_ICONS);
+		iconview = (IconView) sw_iconview.get_child ();
+		view.pack_start (sw_iconview, true, true, 0);
+		//sw_iconview = builder.get_object ("scrolledwindow_iconview") as ScrolledWindow;
+		//iconview = builder.get_object ("iconview_results") as IconView;
+		
 		setup_ui_results (treeview, iconview);
 
 		view_details.set_active (true);
@@ -432,9 +448,27 @@ public class TrackerNeedle {
 		last_search_id = 0;
 
 		if (search.get_text ().length < 1) {
+			// Show no results window
+			sw_noresults.show ();
+			sw_iconview.hide ();
+			sw_treeview.hide ();
+
 			return false;
 		}
 
+		// Show correct window
+		bool rows = view_list.active || view_details.active;
+		
+		if (rows) {
+			sw_noresults.hide ();
+			sw_iconview.hide ();
+			sw_treeview.show ();
+		} else {
+			sw_noresults.hide ();
+			sw_iconview.show ();
+			sw_treeview.hide ();
+		}
+
 		if (view_details.active) {
 			search_detailed ();
 		} else {
@@ -449,15 +483,16 @@ public class TrackerNeedle {
 		bool show_find_in;
 
 		rows = view_list.active || view_details.active;
-		
+
 		if (current_view == rows) {
 			return;
 		}
 
 		if (rows) {
 			// FIXME: if list/details changes, re-run query
-			sw_iconview.hide ();
-			sw_treeview.show_all ();
+
+			// Was: sw_treeview.show_all ();
+
 			debug ("View toggled to 'list' or 'details'");
 			
 			if (view_details.active) {
@@ -472,12 +507,16 @@ public class TrackerNeedle {
 				show_find_in = true;
 			}
 		} else {
-			sw_iconview.show_all ();
-			sw_treeview.hide ();
+			// Was: sw_iconview.show_all ();
 			show_find_in = true;
 			debug ("View toggled to 'icons'");
 		}
 
+		// Show no results Window when switching
+		sw_noresults.show ();
+		sw_iconview.hide ();
+		sw_treeview.hide ();
+
 		// Show/Hide secondary widgets
 		separator_secondary.visible = show_find_in;
 		find_in_contents.visible = show_find_in;
diff --git a/src/tracker-needle/tracker-view.vala b/src/tracker-needle/tracker-view.vala
new file mode 100644
index 0000000..30f3e3c
--- /dev/null
+++ b/src/tracker-needle/tracker-view.vala
@@ -0,0 +1,76 @@
+//
+// 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.
+//
+
+using Gtk;
+
+public class Tracker.View : ScrolledWindow {
+	public enum Display {
+		NO_RESULTS,
+		CATEGORIES,
+		FILE_LIST,
+		FILE_ICONS
+	}
+
+	public Display display {
+		get;
+		private set;
+	}
+
+	public View (Display? _display = Display.NO_RESULTS) {
+		Widget results = null;
+		
+		set_policy (PolicyType.NEVER, PolicyType.AUTOMATIC);
+
+		display = _display;
+
+		switch (display) {
+		case Display.NO_RESULTS:
+			Label l;
+
+			l = new Label ("");
+
+			string message = _("No Search Results");
+			string markup = @"<big>$message</big>";
+			
+			l.set_use_markup (true);
+			l.set_markup (markup);
+
+			results = l;
+			break;
+
+		case Display.CATEGORIES:
+		case Display.FILE_LIST:
+			results = new TreeView ();
+			break;
+
+		case Display.FILE_ICONS:
+			results = new IconView ();
+			break;
+		}
+
+		if (display == Display.NO_RESULTS) {
+			add_with_viewport (results);
+		} else {
+			add (results);
+		}
+
+		base.show_all ();
+	}
+}
+