Merge pull request #32 from pedrohex/samplescont

Samples continuation

Source/Samples/Sections/Widgets/ComboBoxSection.cs

@@ -0,0 +1,97 @@
+// This is free and unencumbered software released into the public domain.
+// Happy coding!!! - GtkSharp Team
+
+using Gtk;
+
+namespace Samples
+{
+    [Section(ContentType = typeof(ComboBox), Category = Category.Widgets)]
+    class ComboBoxSection : ListSection
+    {
+        public ComboBoxSection()
+        {
+            AddItem(CreateSimpleComboBox());
+            AddItem(CreateMultiColumnComboBox());
+            AddItem(CreateEditableComboBox());
+        }
+
+        public (string, Widget) CreateSimpleComboBox()
+        {
+            // initialize with a simple string list
+            var combo = new ComboBox(
+                new string[] 
+                {
+                    "Combo Entry 1",
+                    "Combo Entry 2",
+                    "Combo Entry 3",
+                    "Combo Entry 4"
+                }
+            );
+
+            // event to notify for index changes in our combo
+            combo.Changed += (sender, e) => 
+                ApplicationOutput.WriteLine(sender, $"Index changed to:{((ComboBox)sender).Active}");
+
+            // set the active selection to index 2 (Combo Entry 3)
+            combo.Active = 2;
+
+            return ("Simple combo:", combo);
+        }
+
+        public (string, Widget) CreateMultiColumnComboBox()
+        {
+            // create a store for our combo
+            var store = new ListStore(typeof(string), typeof(string), typeof(bool));
+
+            // lets append some stock icons, passing the icon names, and a simple text column
+            store.AppendValues("dialog-warning", "Warning", true);
+            store.AppendValues("process-stop", "Stop", false);
+            store.AppendValues("document-new", "New", true);
+            store.AppendValues("edit-clear", "Clear", true);
+
+            // create cells
+            var imageCell = new CellRendererPixbuf();
+            var textCell = new CellRendererText();
+
+            // create the combo and pass the values in
+            var combo = new ComboBox(store);
+            combo.PackStart(imageCell, true);
+            combo.PackStart(textCell, true);
+
+            // add combo attributes to show in columns
+            combo.AddAttribute(imageCell, "icon-name", 0);
+            combo.AddAttribute(textCell, "text", 1);
+
+            // lets use the store bool values to control sensitive rows
+            // Process-stop (store index one) should be disabled in this sample
+            // For a ComboBox item to be disabled, all cell renderers for the item need to have
+            // their sensitivity disabled
+            combo.AddAttribute(imageCell, "sensitive", 2);
+            combo.AddAttribute(textCell, "sensitive", 2);
+
+            // listen to index changed on combo
+            combo.Changed += (sender, e) =>
+                ApplicationOutput.WriteLine(sender, $"Index changed to:{((ComboBox)sender).Active}");
+
+            // lets preselect the first option
+            combo.Active = 0;
+
+            return ("Combo with Icons and Text:", combo);
+        }
+
+        public (string, Widget) CreateEditableComboBox()
+        {
+            var combo = ComboBoxText.NewWithEntry();
+            combo.AppendText("Example 1");
+            combo.AppendText("Example 2");
+            combo.AppendText("Example 3");
+            combo.AppendText("Example 4");
+
+            // combos with entry have a real entry inside it
+            // we can use it by
+            combo.Entry.PlaceholderText = "Write something";
+
+            return ("Combo with entry:", combo);
+        }
+    }
+}

Source/Samples/Sections/Widgets/EntrySection.cs

@@ -18,6 +18,7 @@ namespace Samples
             AddItem(CreateCustomActionsEntry());
             AddItem(CreateProgressEntry());
             AddItem(CreateCompletionEntry());
+            AddItem(CreateInsensitiveEntry());
         }
 
         public (string, Widget) CreateSimpleEntry()
@@ -123,44 +124,40 @@ namespace Samples
             store.AppendValues("Better and bigger example");
             store.AppendValues("Some other example");
 
-            // create tree column
+            // assign treemodel as the completion
-            var column = new TreeViewColumn();
+            completion.Model = store;
-            column.Reorderable = false;
-            column.SortIndicator = false;
-            column.Clickable = true;
-            column.SortColumnId = 0;
 
-            // create cells
+            // lets override the default match function so we can use the contains mode
-            var cell = new CellRendererText();
+            // instead of the default startswith
-            column.PackStart(cell, true);
+            completion.MatchFunc = (EntryCompletion comp, string key, TreeIter iter) =>
-
-            // set cell functions
-            column.SetCellDataFunc(cell, (TreeViewColumn tree_column, CellRenderer cellRenderer, ITreeModel tree_model, TreeIter iter) =>
             {
-                var m = tree_model.GetValue(iter, 0);
+                if (string.IsNullOrEmpty(key))
-                (cellRenderer as CellRendererText).Text = (string)m;
+                    return false;
-            });
-                                          
-            // model filter
-            var filter = new TreeModelFilter(store, null);
-            filter.VisibleFunc = (model, iter) =>
-            {
-                if (string.IsNullOrEmpty(entry.Text))
-                    return true;
 
-                var o = model.GetValue(iter, 0);
+                var o = comp.Model.GetValue(iter, 0);
-                var searchString = o as string;
+                var stringToSearch = o as string;
-                if (!string.IsNullOrEmpty(searchString))
-                    return searchString.StartsWith(entry.Text, System.StringComparison.InvariantCultureIgnoreCase);
 
-                return true;
+                if (!string.IsNullOrEmpty(stringToSearch))
+                    return stringToSearch.IndexOf(key, System.StringComparison.InvariantCultureIgnoreCase) >= 0;
+
+                return false;
             };
 
-            // assign treemodel as the completion
-            completion.Model = filter;
             completion.TextColumn = 0;
 
+
             return ("Completion Entry:",entry);
         }
+
+        public (string, Widget) CreateInsensitiveEntry()
+        {
+            var entry = new Entry();
+            entry.Text = "Cannot change this";
+
+            entry.Sensitive = false;
+
+            return ("Insensitive entry:", entry);
+        }
+    
     }
 }

Source/Samples/Sections/Widgets/ProgressBarSection.cs

@@ -68,7 +68,7 @@ namespace Samples
 
         public (string, Widget) CreatePulseProgressBar()
         {
-            // this is used when application can report progress
+            // this is used when application can't report progress
 
             var pb = new ProgressBar();