added an example of dynamic combo box with the new 'slate pretty syntax'

Roberto De Ioris · Roberto De Ioris · commit acff471f4341 · 2017-06-16T20:52:21.000+02:00
diff --git a/examples/dynamic_combo_box.py b/examples/dynamic_combo_box.py
@@ -0,0 +1,70 @@
+from unreal_engine import SWindow, SBox, SPythonComboBox, STextBlock, SBorder, SVerticalBox, SEditableTextBox, SHorizontalBox, SButton
+from unreal_engine.enums import EHorizontalAlignment, EVerticalAlignment
+from unreal_engine import FLinearColor
+from unreal_engine.structs import SlateColor, Margin
+
+class DynamicComboBox:
+
+    def __init__(self, items):
+        self.box = SBox(height_override=100, min_desired_width=400)
+        self.items = items
+        self.build_combo_box()
+        self.combo_box.set_selected_item(self.items[0])
+
+    def get_widget(self):
+        return self.box
+
+    def generate_combo_box_widget(self, item):
+        return STextBlock(text=item)
+
+    def append(self, item, committed):
+        if item and item not in self.items:
+            self.items.append(item)
+            self.build_combo_box()
+            self.combo_box.set_selected_item(item)
+
+    def get_current_item(self):
+        return self.combo_box.get_selected_item()
+
+    def build_combo_box(self):
+        self.combo_box = SPythonComboBox(options_source=self.items, on_generate_widget=self.generate_combo_box_widget, content=STextBlock(text=self.get_current_item))
+        self.box.set_content(self.combo_box)
+
+    
+
+dynamic_combo_box = DynamicComboBox(['one','two', 'three'])
+
+# the final backslash is required for the 'pretty syntax'
+SWindow(client_size=(1024, 576), title='DynamicComboBox')\
+(
+    SBorder(color_and_opacity=FLinearColor(0, 1, 0, 1), border_background_color=SlateColor(SpecifiedColor=FLinearColor(1, 0, 0, 1)))
+    (
+        SBox(h_align=EHorizontalAlignment.HAlign_Center, v_align=EVerticalAlignment.VAlign_Center)
+        (
+            SBorder(color_and_opacity=FLinearColor(0, 1, 0, 1), border_background_color=SlateColor(SpecifiedColor=FLinearColor(0, 1, 0, 1)))
+            (
+                SVerticalBox()
+                (
+                    STextBlock(text='Hello 1', tool_tip_text='Test Tool Tip')
+                )
+                (
+                    STextBlock(text='Hello 2')
+                )
+                (
+                    dynamic_combo_box.get_widget()
+                )
+                (
+                    SHorizontalBox()
+                    (
+                        SEditableTextBox(text=lambda: '', on_text_committed=dynamic_combo_box.append),
+                        fill_width=0.8
+                    )
+                    (
+                        SButton(text='Ok'),
+                        fill_width=0.2
+                    )
+                )
+            )
+        )
+    )
+)
