Scroll checkmarks

app/src/main/java/org/isoron/uhabits/activities/common/views/ScrollableChart.java

@@ -41,6 +41,13 @@ public abstract class ScrollableChart extends View
 
     private ValueAnimator scrollAnimator;
 
+    private ScrollController scrollController;
+
+    public void setScrollController(ScrollController scrollController)
+    {
+        this.scrollController = scrollController;
+    }
+
     public ScrollableChart(Context context)
     {
         super(context);
@@ -64,8 +71,7 @@ public abstract class ScrollableChart extends View
         if (!scroller.isFinished())
         {
             scroller.computeScrollOffset();
-            dataOffset = Math.max(0, scroller.getCurrX() / scrollerBucketSize);
+            updateDataOffset();
-            postInvalidate();
         }
         else
         {
@@ -73,6 +79,19 @@ public abstract class ScrollableChart extends View
         }
     }
 
+    private void updateDataOffset()
+    {
+        int newDataOffset =
+            Math.max(0, scroller.getCurrX() / scrollerBucketSize);
+
+        if(newDataOffset != dataOffset)
+        {
+            dataOffset = newDataOffset;
+            scrollController.onDataOffsetChanged(dataOffset);
+            postInvalidate();
+        }
+    }
+
     @Override
     public boolean onDown(MotionEvent e)
     {
@@ -115,8 +134,7 @@ public abstract class ScrollableChart extends View
         scroller.startScroll(scroller.getCurrX(), scroller.getCurrY(),
             (int) -dx, (int) dy, 0);
         scroller.computeScrollOffset();
-        dataOffset = Math.max(0, scroller.getCurrX() / scrollerBucketSize);
+        updateDataOffset();
-        postInvalidate();
 
         return true;
     }
@@ -173,5 +191,11 @@ public abstract class ScrollableChart extends View
         scroller = new Scroller(context, null, true);
         scrollAnimator = ValueAnimator.ofFloat(0, 1);
         scrollAnimator.addUpdateListener(this);
+        scrollController = new ScrollController(){};
+    }
+
+    public interface ScrollController
+    {
+        default void onDataOffsetChanged(int newDataOffset) {}
     }
 }

app/src/main/java/org/isoron/uhabits/activities/habits/list/ListHabitsRootView.java

@@ -28,6 +28,7 @@ import android.widget.*;
 
 import org.isoron.uhabits.R;
 import org.isoron.uhabits.activities.*;
+import org.isoron.uhabits.activities.common.views.*;
 import org.isoron.uhabits.activities.habits.list.controllers.*;
 import org.isoron.uhabits.activities.habits.list.model.*;
 import org.isoron.uhabits.activities.habits.list.views.*;
@@ -43,7 +44,7 @@ import butterknife.*;
 public class ListHabitsRootView extends BaseRootView
     implements ModelObservable.Listener, TaskRunner.Listener
 {
-    public static final int MAX_CHECKMARK_COUNT = 21;
+    public static final int MAX_CHECKMARK_COUNT = 60;
 
     @BindView(R.id.listView)
     HabitCardListView listView;
@@ -132,6 +133,13 @@ public class ListHabitsRootView extends BaseRootView
         listController.setSelectionListener(menu);
         listView.setController(listController);
         menu.setListController(listController);
+        header.setScrollController(new ScrollableChart.ScrollController() {
+            @Override
+            public void onDataOffsetChanged(int newDataOffset)
+            {
+                listView.setDataOffset(newDataOffset);
+            }
+        });
     }
 
     @Override

app/src/main/java/org/isoron/uhabits/activities/habits/list/model/HabitCardListAdapter.java

@@ -178,6 +178,20 @@ public class HabitCardListAdapter
         listView.bindCardView(holder, habit, score, checkmarks, selected);
     }
 
+    @Override
+    public void onViewAttachedToWindow(@Nullable HabitCardViewHolder holder)
+    {
+        if (listView == null) return;
+        listView.attachCardView(holder);
+    }
+
+    @Override
+    public void onViewDetachedFromWindow(@Nullable HabitCardViewHolder holder)
+    {
+        if (listView == null) return;
+        listView.detachCardView(holder);
+    }
+
     @Override
     public HabitCardViewHolder onCreateViewHolder(ViewGroup parent,
                                                   int viewType)

app/src/main/java/org/isoron/uhabits/activities/habits/list/views/CheckmarkPanelView.java

@@ -53,6 +53,8 @@ public class CheckmarkPanelView extends LinearLayout implements Preferences.List
     @NonNull
     private Habit habit;
 
+    private int dataOffset;
+
     public CheckmarkPanelView(Context context)
     {
         super(context);
@@ -75,19 +77,23 @@ public class CheckmarkPanelView extends LinearLayout implements Preferences.List
         return (CheckmarkButtonView) getChildAt(position);
     }
 
-    public void setCheckmarkValues(int[] checkmarkValues)
+    public void setButtonCount(int newButtonCount)
     {
-        this.checkmarkValues = checkmarkValues;
+        if(nButtons != newButtonCount)
-
-        if (this.nButtons != checkmarkValues.length)
         {
-            this.nButtons = checkmarkValues.length;
+            nButtons = newButtonCount;
             addCheckmarkButtons();
         }
 
         setupCheckmarkButtons();
     }
 
+    public void setCheckmarkValues(int[] checkmarkValues)
+    {
+        this.checkmarkValues = checkmarkValues;
+        setupCheckmarkButtons();
+    }
+
     public void setColor(int color)
     {
         this.color = color;
@@ -100,6 +106,12 @@ public class CheckmarkPanelView extends LinearLayout implements Preferences.List
         setupCheckmarkButtons();
     }
 
+    public void setDataOffset(int dataOffset)
+    {
+        this.dataOffset = dataOffset;
+        setupCheckmarkButtons();
+    }
+
     public void setHabit(@NonNull Habit habit)
     {
         this.habit = habit;
@@ -170,11 +182,13 @@ public class CheckmarkPanelView extends LinearLayout implements Preferences.List
     {
         long timestamp = DateUtils.getStartOfToday();
         long day = DateUtils.millisecondsInOneDay;
+        timestamp -= day * dataOffset;
 
         for (int i = 0; i < nButtons; i++)
         {
             CheckmarkButtonView buttonView = indexToButton(i);
-            buttonView.setValue(checkmarkValues[i]);
+            if(i + dataOffset >= checkmarkValues.length) break;
+            buttonView.setValue(checkmarkValues[i + dataOffset]);
             buttonView.setColor(color);
             setupButtonControllers(timestamp, buttonView);
             timestamp -= day;

app/src/main/java/org/isoron/uhabits/activities/habits/list/views/HabitCardListView.java

@@ -26,9 +26,9 @@ import android.support.v7.widget.helper.*;
 import android.util.*;
 import android.view.*;
 
-import org.isoron.uhabits.models.*;
 import org.isoron.uhabits.activities.habits.list.controllers.*;
 import org.isoron.uhabits.activities.habits.list.model.*;
+import org.isoron.uhabits.models.*;
 
 import java.util.*;
 
@@ -44,6 +44,10 @@ public class HabitCardListView extends RecyclerView
 
     private int checkmarkCount;
 
+    private int dataOffset;
+
+    private LinkedList<HabitCardViewHolder> attachedHolders;
+
     public HabitCardListView(Context context, AttributeSet attrs)
     {
         super(context, attrs);
@@ -54,6 +58,13 @@ public class HabitCardListView extends RecyclerView
         TouchHelperCallback callback = new TouchHelperCallback();
         touchHelper = new ItemTouchHelper(callback);
         touchHelper.attachToRecyclerView(this);
+
+        attachedHolders = new LinkedList<>();
+    }
+
+    public void attachCardView(HabitCardViewHolder holder)
+    {
+        attachedHolders.add(holder);
     }
 
     /**
@@ -75,13 +86,12 @@ public class HabitCardListView extends RecyclerView
                              int[] checkmarks,
                              boolean selected)
     {
-        int visibleCheckmarks[] =
-            Arrays.copyOfRange(checkmarks, 0, checkmarkCount);
-
         HabitCardView cardView = (HabitCardView) holder.itemView;
         cardView.setHabit(habit);
         cardView.setSelected(selected);
-        cardView.setCheckmarkValues(visibleCheckmarks);
+        cardView.setCheckmarkValues(checkmarks);
+        cardView.setCheckmarkCount(checkmarkCount);
+        cardView.setDataOffset(dataOffset);
         cardView.setScore(score);
         if (controller != null) setupCardViewController(holder);
         return cardView;
@@ -92,6 +102,11 @@ public class HabitCardListView extends RecyclerView
         return new HabitCardView(getContext());
     }
 
+    public void detachCardView(HabitCardViewHolder holder)
+    {
+        attachedHolders.remove(holder);
+    }
+
     @Override
     public void setAdapter(RecyclerView.Adapter adapter)
     {
@@ -109,6 +124,16 @@ public class HabitCardListView extends RecyclerView
         this.controller = controller;
     }
 
+    public void setDataOffset(int dataOffset)
+    {
+        this.dataOffset = dataOffset;
+        for(HabitCardViewHolder holder : attachedHolders)
+        {
+            HabitCardView cardView = (HabitCardView) holder.itemView;
+            cardView.setDataOffset(dataOffset);
+        }
+    }
+
     @Override
     protected void onAttachedToWindow()
     {

app/src/main/java/org/isoron/uhabits/activities/habits/list/views/HabitCardView.java

@@ -72,6 +72,8 @@ public class HabitCardView extends FrameLayout
     @Nullable
     private Habit habit;
 
+    private int dataOffset;
+
     public HabitCardView(Context context)
     {
         super(context);
@@ -90,6 +92,11 @@ public class HabitCardView extends FrameLayout
         new Handler(Looper.getMainLooper()).post(() -> refresh());
     }
 
+    public void setCheckmarkCount(int checkmarkCount)
+    {
+        checkmarkPanel.setButtonCount(checkmarkCount);
+    }
+
     public void setCheckmarkValues(int checkmarks[])
     {
         checkmarkPanel.setCheckmarkValues(checkmarks);
@@ -103,6 +110,12 @@ public class HabitCardView extends FrameLayout
         checkmarkPanel.setController(controller);
     }
 
+    public void setDataOffset(int dataOffset)
+    {
+        this.dataOffset = dataOffset;
+        checkmarkPanel.setDataOffset(dataOffset);
+    }
+
     public void setHabit(@NonNull Habit habit)
     {
         if (this.habit != null) detachFromHabit();
@@ -134,7 +147,7 @@ public class HabitCardView extends FrameLayout
     {
         long today = DateUtils.getStartOfToday();
         long day = DateUtils.millisecondsInOneDay;
-        int offset = (int) ((today - timestamp) / day);
+        int offset = (int) ((today - timestamp) / day) - dataOffset;
         CheckmarkButtonView button = checkmarkPanel.indexToButton(offset);
 
         float y = button.getHeight() / 2.0f;