Misc clean up. move widgets from graph to widget package.

Bug: n/a
Test: robotests, rebuild
Change-Id: I910f355312d52e81a0bf57b46a3f267e1eb9882a

src/com/android/settings/widget/UsageView.java

@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.widget;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.util.AttributeSet;
+import android.util.SparseIntArray;
+import android.view.Gravity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.FrameLayout;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import com.android.settingslib.R;
+
+public class UsageView extends FrameLayout {
+
+    private final UsageGraph mUsageGraph;
+    private final TextView[] mLabels;
+    private final TextView[] mBottomLabels;
+
+    public UsageView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        LayoutInflater.from(context).inflate(R.layout.usage_view, this);
+        mUsageGraph = findViewById(R.id.usage_graph);
+        mLabels = new TextView[] {
+                findViewById(R.id.label_bottom),
+                findViewById(R.id.label_middle),
+                findViewById(R.id.label_top),
+        };
+        mBottomLabels = new TextView[] {
+                findViewById(R.id.label_start),
+                findViewById(R.id.label_end),
+        };
+        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.UsageView, 0, 0);
+        if (a.hasValue(R.styleable.UsageView_sideLabels)) {
+            setSideLabels(a.getTextArray(R.styleable.UsageView_sideLabels));
+        }
+        if (a.hasValue(R.styleable.UsageView_bottomLabels)) {
+            setBottomLabels(a.getTextArray(R.styleable.UsageView_bottomLabels));
+        }
+        if (a.hasValue(R.styleable.UsageView_textColor)) {
+            int color = a.getColor(R.styleable.UsageView_textColor, 0);
+            for (TextView v : mLabels) {
+                v.setTextColor(color);
+            }
+            for (TextView v : mBottomLabels) {
+                v.setTextColor(color);
+            }
+        }
+        if (a.hasValue(R.styleable.UsageView_android_gravity)) {
+            int gravity = a.getInt(R.styleable.UsageView_android_gravity, 0);
+            if (gravity == Gravity.END) {
+                LinearLayout layout = findViewById(R.id.graph_label_group);
+                LinearLayout labels = findViewById(R.id.label_group);
+                // Swap the children order.
+                layout.removeView(labels);
+                layout.addView(labels);
+                // Set gravity.
+                labels.setGravity(Gravity.END);
+                // Swap the bottom space order.
+                LinearLayout bottomLabels = findViewById(R.id.bottom_label_group);
+                View bottomSpace = bottomLabels.findViewById(R.id.bottom_label_space);
+                bottomLabels.removeView(bottomSpace);
+                bottomLabels.addView(bottomSpace);
+            } else if (gravity != Gravity.START) {
+                throw new IllegalArgumentException("Unsupported gravity " + gravity);
+            }
+        }
+        mUsageGraph.setAccentColor(a.getColor(R.styleable.UsageView_android_colorAccent, 0));
+        a.recycle();
+    }
+
+    public void clearPaths() {
+        mUsageGraph.clearPaths();
+    }
+
+    public void addPath(SparseIntArray points) {
+        mUsageGraph.addPath(points);
+    }
+
+    public void addProjectedPath(SparseIntArray points) {
+        mUsageGraph.addProjectedPath(points);
+    }
+
+    public void configureGraph(int maxX, int maxY) {
+        mUsageGraph.setMax(maxX, maxY);
+    }
+
+    public void setAccentColor(int color) {
+        mUsageGraph.setAccentColor(color);
+    }
+
+    public void setDividerLoc(int dividerLoc) {
+        mUsageGraph.setDividerLoc(dividerLoc);
+    }
+
+    public void setDividerColors(int middleColor, int topColor) {
+        mUsageGraph.setDividerColors(middleColor, topColor);
+    }
+
+    public void setSideLabelWeights(float before, float after) {
+        setWeight(R.id.space1, before);
+        setWeight(R.id.space2, after);
+    }
+
+    private void setWeight(int id, float weight) {
+        View v = findViewById(id);
+        LinearLayout.LayoutParams params = (LinearLayout.LayoutParams) v.getLayoutParams();
+        params.weight = weight;
+        v.setLayoutParams(params);
+    }
+
+    public void setSideLabels(CharSequence[] labels) {
+        if (labels.length != mLabels.length) {
+            throw new IllegalArgumentException("Invalid number of labels");
+        }
+        for (int i = 0; i < mLabels.length; i++) {
+            mLabels[i].setText(labels[i]);
+        }
+    }
+
+    public void setBottomLabels(CharSequence[] labels) {
+        if (labels.length != mBottomLabels.length) {
+            throw new IllegalArgumentException("Invalid number of labels");
+        }
+        for (int i = 0; i < mBottomLabels.length; i++) {
+            mBottomLabels[i].setText(labels[i]);
+        }
+    }
+
+}