Full modal dialog functionality

modules/game_modaldialog/modaldialog.otui

@@ -8,52 +8,61 @@ ChoiceListLabel < Label
     background-color: #ffffff22
     color: #ffffff
 
+ChoiceList < TextList
+  id: choiceList
+  vertical-scrollbar: choiceScrollBar
+  anchors.fill: parent
+  anchors.top: prev.bottom
+  anchors.bottom: next.top
+  padding: 1
+  margin-top: 4
+  margin-bottom: 10
+  focusable: false
+  visible: false
+
+ChoiceScrollBar < VerticalScrollBar
+  id: choiceScrollBar
+  anchors.top: choiceList.top
+  anchors.bottom: choiceList.bottom
+  anchors.right: choiceList.right
+  step: 14
+  pixels-scroll: true
+  visible: false
+
+ModalButton < Button
+  width: 60
+  margin: 2
+
 ModalDialog < MainWindow
   id: modalDialog
-  !text: tr('Title')
-  size: 280 230
-  @onEscape: self:destroy()
+  size: 280 97
+  &minimumWidth: 200
+  &maximumWidth: 500
+  &minimumChoices: 4
+  &maximumChoices: 10
 
   Label
     id: messageLabel
     anchors.top: parent.top
     anchors.left: parent.left
-    anchors.right: parent.right
     text-align: left
-    text: Message
-    height: 60
+    text-auto-resize: true
+    text-wrap: true
 
-  TextList
-    id: choiceList
-    vertical-scrollbar: choiceScrollBar
-    anchors.fill: parent
-    anchors.top: prev.bottom
-    anchors.bottom: next.top
-    margin-bottom: 10
-    margin-top: 10
-    padding: 1
-    focusable: false
-    
-  Button
-    id: enterButton
-    !text: tr('Ok')
-    anchors.top: next.top
-    anchors.right: next.left
-    margin-right: 8
-    width: 60
+  ChoiceList
 
-  Button
-    id: escapeButton
-    !text: tr('Cancel')
-    anchors.bottom: parent.bottom
+  HorizontalSeparator
+    anchors.left: parent.left
     anchors.right: parent.right
-    margin-top: 10
-    width: 60
+    anchors.bottom: next.top
 
-  VerticalScrollBar
-    id: choiceScrollBar
-    anchors.top: choiceList.top
-    anchors.bottom: choiceList.bottom
-    anchors.right: choiceList.right
-    step: 14
-    pixels-scroll: true
+  Panel
+    id: buttonList
+    anchors.left: parent.left
+    anchors.right: parent.right
+    anchors.bottom: parent.bottom
+    height: 24
+    layout: horizontalBox
+      align-right: true
+
+  ChoiceScrollBar