diff --git a/Core.cs b/Core.cs
index c86350c37..4c57f6f5b 100644
--- a/Core.cs
+++ b/Core.cs
@@ -396,8 +396,10 @@ namespace Terminal {
///
public void FocusFirst ()
{
- if (subviews == null)
+ if (subviews == null) {
+ SuperView.SetFocus (this);
return;
+ }
foreach (var view in subviews) {
if (view.CanFocus) {
diff --git a/Terminal.csproj b/Terminal.csproj
index 0f79098e1..de02b6d27 100644
--- a/Terminal.csproj
+++ b/Terminal.csproj
@@ -41,6 +41,7 @@
+
diff --git a/Views/Button.cs b/Views/Button.cs
new file mode 100644
index 000000000..fca6cafb1
--- /dev/null
+++ b/Views/Button.cs
@@ -0,0 +1,179 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Terminal {
+ ///
+ /// Button view
+ ///
+ ///
+ /// Provides a button that can be clicked, or pressed with
+ /// the enter key and processes hotkeys (the first uppercase
+ /// letter in the button becomes the hotkey).
+ ///
+ public class Button : View {
+ string text;
+ string shown_text;
+ char hot_key;
+ int hot_pos = -1;
+ bool is_default;
+
+ ///
+ /// Clicked event, raised when the button is clicked.
+ ///
+ ///
+ /// Client code can hook up to this event, it is
+ /// raised when the button is activated either with
+ /// the mouse or the keyboard.
+ ///
+ public event EventHandler Clicked;
+
+ ///
+ /// Public constructor, creates a button based on
+ /// the given text at position 0,0
+ ///
+ ///
+ /// The size of the button is computed based on the
+ /// text length. This button is not a default button.
+ ///
+ public Button (string s) : this (0, 0, s) { }
+
+ ///
+ /// Public constructor, creates a button based on
+ /// the given text.
+ ///
+ ///
+ /// If the value for is_default is true, a special
+ /// decoration is used, and the enter key on a
+ /// dialog would implicitly activate this button.
+ ///
+ public Button (string s, bool is_default) : this (0, 0, s, is_default) { }
+
+ ///
+ /// Public constructor, creates a button based on
+ /// the given text at the given position.
+ ///
+ ///
+ /// The size of the button is computed based on the
+ /// text length. This button is not a default button.
+ ///
+ public Button (int x, int y, string s) : this (x, y, s, false) { }
+
+ ///
+ /// The text displayed by this widget.
+ ///
+ public string Text {
+ get {
+ return text;
+ }
+
+ set {
+ text = value;
+ if (is_default)
+ shown_text = "[< " + value + " >]";
+ else
+ shown_text = "[ " + value + " ]";
+
+ hot_pos = -1;
+ hot_key = (char)0;
+ int i = 0;
+ foreach (char c in shown_text) {
+ if (Char.IsUpper (c)) {
+ hot_key = c;
+ hot_pos = i;
+ break;
+ }
+ i++;
+ }
+ }
+ }
+
+ ///
+ /// Public constructor, creates a button based on
+ /// the given text at the given position.
+ ///
+ ///
+ /// If the value for is_default is true, a special
+ /// decoration is used, and the enter key on a
+ /// dialog would implicitly activate this button.
+ ///
+ public Button (int x, int y, string s, bool is_default)
+ : base (new Rect (x, y, s.Length + 4 + (is_default ? 2 : 0), 1))
+ {
+ CanFocus = true;
+
+ this.is_default = is_default;
+ Text = s;
+ }
+
+ public override void Redraw (Rect region)
+ {
+ Driver.SetAttribute (HasFocus ? Colors.Base.Focus : Colors.Base.Normal);
+ Move (0, 0);
+ Driver.AddStr (shown_text);
+
+ if (hot_pos != -1) {
+ Move (hot_pos, 0);
+ Driver.SetAttribute (HasFocus ? Colors.Base.HotFocus: Colors.Base.HotNormal);
+ Driver.AddCh (hot_key);
+ }
+ }
+
+ public override void PositionCursor ()
+ {
+ Move (hot_pos, 0);
+ }
+
+ bool CheckKey (KeyEvent key)
+ {
+ if (Char.ToUpper ((char)key.KeyValue) == hot_key) {
+ this.SetFocus (this);
+ if (Clicked != null)
+ Clicked (this, EventArgs.Empty);
+ return true;
+ }
+ return false;
+ }
+
+ public override bool ProcessHotKey (KeyEvent kb)
+ {
+ if (kb.IsAlt)
+ return CheckKey (kb);
+
+ return false;
+ }
+
+ public override bool ProcessColdKey (KeyEvent kb)
+ {
+ if (is_default && kb.KeyValue == '\n') {
+ if (Clicked != null)
+ Clicked (this, EventArgs.Empty);
+ return true;
+ }
+ return CheckKey (kb);
+ }
+
+ public override bool ProcessKey (KeyEvent kb)
+ {
+ var c = kb.KeyValue;
+ if (c == '\n' || c == ' ' || Char.ToUpper ((char)c) == hot_key) {
+ if (Clicked != null)
+ Clicked (this, EventArgs.Empty);
+ return true;
+ }
+ return false;
+ }
+
+#if false
+ public override void ProcessMouse (Curses.MouseEvent ev)
+ {
+ if ((ev.ButtonState & Curses.Event.Button1Clicked) != 0) {
+ Container.SetFocus (this);
+ Container.Redraw ();
+ if (Clicked != null)
+ Clicked (this, EventArgs.Empty);
+ }
+ }
+#endif
+ }
+}
diff --git a/demo.cs b/demo.cs
index 748744721..d7a922ef9 100644
--- a/demo.cs
+++ b/demo.cs
@@ -11,7 +11,8 @@ class Demo {
new Label (new Rect (0, 8, 40, 3), "3-Hello world, how are you doing today") { TextAlignment = TextAlignment.Centered },
new Label (new Rect (0, 12, 40, 3), "4-Hello world, how are you doing today") { TextAlignment = TextAlignment.Justified},
new Label (3, 14, "Login: "),
- new TextField (10, 14, 40, "")
+ new TextField (10, 14, 40, ""),
+ new Button (3, 16, "Ok")
};
top.Add (win);
Application.Run ();