WIP: Cards build optimization

lib/cards/entity_button_card.dart

@@ -0,0 +1,62 @@
+part of '../main.dart';
+
+class EntityButtonCard extends StatelessWidget {
+
+  final HACard card;
+
+  EntityButtonCard({
+    Key key, this.card
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    card.linkedEntityWrapper.overrideName = card.name?.toUpperCase() ??
+        card.linkedEntityWrapper.displayName.toUpperCase();
+    EntityWrapper entityWrapper = card.linkedEntityWrapper;
+    if (entityWrapper.entity.statelessType == StatelessEntityType.MISSED) {
+      return MissedEntityWidget();
+    }
+    if (entityWrapper.entity.statelessType > StatelessEntityType.MISSED) {
+      return Container(width: 0.0, height: 0.0,);
+    }
+    double widthBase =  math.min(MediaQuery.of(context).size.width, MediaQuery.of(context).size.height) / 6;
+    
+    
+    return CardWrapper(
+      child: Center(
+        child: EntityModel(
+          entityWrapper: card.linkedEntityWrapper,
+          child: InkWell(
+            onTap: () => entityWrapper.handleTap(),
+            onLongPress: () => entityWrapper.handleHold(),
+            onDoubleTap: () => entityWrapper.handleDoubleTap(),
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              children: <Widget>[
+                EntityIcon(
+                  padding: EdgeInsets.fromLTRB(2.0, 6.0, 2.0, 2.0),
+                  size: widthBase / (card.depth * 0.5),
+                ),
+                _buildName()
+              ],
+            ),
+          ),
+          handleTap: true
+        ),
+      )
+    );
+  }
+
+  Widget _buildName() {
+    if (card.showName) {
+      return EntityName(
+        padding: EdgeInsets.fromLTRB(Sizes.buttonPadding, 0.0, Sizes.buttonPadding, Sizes.rowPadding),
+        textOverflow: TextOverflow.ellipsis,
+        maxLines: 3,
+        wordsWrap: true,
+        textAlign: TextAlign.center
+      );
+    }
+    return Container(width: 0, height: 0);
+  }
+}