From 0f69f594c766052b2573578185145bdd9003a325 Mon Sep 17 00:00:00 2001
From: Alexander Sytnyk <asytnyk0@gmail.com>
Date: Tue, 1 Aug 2017 13:15:11 +0300
Subject: [PATCH] Add functionality

---
 .../res/layout/fragment_measurement_tool.xml  |  18 +--
 OsmAnd/res/values/strings.xml                 |   2 +
 .../MeasurementToolFragment.java              |  32 +++++
 .../measurementtool/MeasurementToolLayer.java | 109 +++++++++++++++++-
 4 files changed, 148 insertions(+), 13 deletions(-)

diff --git a/OsmAnd/res/layout/fragment_measurement_tool.xml b/OsmAnd/res/layout/fragment_measurement_tool.xml
index 57f521cff4..47dfee7ff8 100644
--- a/OsmAnd/res/layout/fragment_measurement_tool.xml
+++ b/OsmAnd/res/layout/fragment_measurement_tool.xml
@@ -51,31 +51,31 @@
                 tools:src="@drawable/ic_action_arrow_down"/>
 
             <TextView
-                android:id="@+id/distance_text_view"
+                android:id="@+id/measurement_distance_text_view"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_centerVertical="true"
+                android:layout_marginEnd="4dp"
                 android:layout_marginLeft="8dp"
+                android:layout_marginRight="4dp"
                 android:layout_marginStart="8dp"
                 android:layout_toEndOf="@id/ruler_icon"
                 android:layout_toRightOf="@id/ruler_icon"
-                android:text="724 m, "
                 android:textAppearance="@style/TextAppearance.ListItemTitle"
-                tools:text="724 m, "/>
+                tools:text="724 m,"/>
 
             <TextView
-                android:id="@+id/dots_text_view"
+                android:id="@+id/measurement_points_text_view"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_centerVertical="true"
-                android:layout_toEndOf="@id/distance_text_view"
+                android:layout_toEndOf="@id/measurement_distance_text_view"
                 android:layout_toLeftOf="@id/up_down_icon"
-                android:layout_toRightOf="@id/distance_text_view"
+                android:layout_toRightOf="@id/measurement_distance_text_view"
                 android:layout_toStartOf="@id/up_down_icon"
-                android:text="3 dots"
                 android:textColor="?android:textColorSecondary"
                 android:textSize="@dimen/default_list_text_size"
-                tools:text="3 dots"/>
+                tools:text="points: 3"/>
         </RelativeLayout>
 
         <View
@@ -114,7 +114,7 @@
                 tools:src="@drawable/ic_action_redo_dark"/>
 
             <Button
-                android:id="@+id/add_dot_button"
+                android:id="@+id/add_point_button"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_alignParentEnd="true"
diff --git a/OsmAnd/res/values/strings.xml b/OsmAnd/res/values/strings.xml
index 78393aefe2..d900482c13 100644
--- a/OsmAnd/res/values/strings.xml
+++ b/OsmAnd/res/values/strings.xml
@@ -9,6 +9,8 @@
          3. All your modified/created strings are in the top of the file (to make easier find what\'s translated).
     PLEASE: Have a look at http://code.google.com/p/osmand/wiki/UIConsistency, it may really improve your and our work  :-)  Thx - Hardy
     -->
+    <string name="measurement_points">points: %o</string>
+    <string name="measurement_distance">%s,</string>
     <string name="measurement_tool">Measurement tool</string>
     <string name="quick_action_resume_pause_navigation">Resume/Pause Navigation</string>
     <string name="quick_action_resume_pause_navigation_descr">Press this button to pause the navigation, or to resume it if it was already paused.</string>
diff --git a/OsmAnd/src/net/osmand/plus/measurementtool/MeasurementToolFragment.java b/OsmAnd/src/net/osmand/plus/measurementtool/MeasurementToolFragment.java
index af7b0b2123..686e06c08f 100644
--- a/OsmAnd/src/net/osmand/plus/measurementtool/MeasurementToolFragment.java
+++ b/OsmAnd/src/net/osmand/plus/measurementtool/MeasurementToolFragment.java
@@ -8,6 +8,7 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
+import android.widget.TextView;
 
 import net.osmand.AndroidUtils;
 import net.osmand.plus.IconsCache;
@@ -20,6 +21,12 @@ public class MeasurementToolFragment extends Fragment {
 
 	private MapActivity mapActivity;
 	private MeasurementToolLayer measurementLayer;
+
+	private TextView distanceTv;
+	private TextView pointsTv;
+	private String distanceSt;
+	private String pointsSt;
+
 	private boolean wasCollapseButtonVisible;
 
 	@Nullable
@@ -31,11 +38,17 @@ public class MeasurementToolFragment extends Fragment {
 		final boolean nightMode = mapActivity.getMyApplication().getDaynightHelper().isNightModeForMapControls();
 		final int themeRes = nightMode ? R.style.OsmandDarkTheme : R.style.OsmandLightTheme;
 
+		distanceSt = mapActivity.getString(R.string.measurement_distance);
+		pointsSt = mapActivity.getString(R.string.measurement_points);
+
 		View view = View.inflate(new ContextThemeWrapper(getContext(), themeRes), R.layout.fragment_measurement_tool, null);
 
 		final View mainView = view.findViewById(R.id.main_view);
 		AndroidUtils.setBackground(mapActivity, mainView, nightMode, R.drawable.bg_bottom_menu_light, R.drawable.bg_bottom_menu_dark);
 
+		distanceTv = (TextView) mainView.findViewById(R.id.measurement_distance_text_view);
+		pointsTv = (TextView) mainView.findViewById(R.id.measurement_points_text_view);
+
 		((ImageView) mainView.findViewById(R.id.ruler_icon))
 				.setImageDrawable(iconsCache.getIcon(R.drawable.ic_action_ruler, R.color.color_myloc_distance));
 		((ImageView) mainView.findViewById(R.id.up_down_icon))
@@ -45,6 +58,14 @@ public class MeasurementToolFragment extends Fragment {
 		((ImageView) mainView.findViewById(R.id.next_dot_icon))
 				.setImageDrawable(iconsCache.getThemedIcon(R.drawable.ic_action_redo_dark));
 
+		mainView.findViewById(R.id.add_point_button).setOnClickListener(new View.OnClickListener() {
+			@Override
+			public void onClick(View view) {
+				measurementLayer.addPointOnClick();
+				updateText();
+			}
+		});
+
 		enterMeasurementMode();
 
 		return view;
@@ -56,8 +77,14 @@ public class MeasurementToolFragment extends Fragment {
 		exitMeasurementMode();
 	}
 
+	private void updateText() {
+		distanceTv.setText(String.format(distanceSt, measurementLayer.getDistanceSt()));
+		pointsTv.setText(String.format(pointsSt, measurementLayer.getPointsCount()));
+	}
+
 	private void enterMeasurementMode() {
 		measurementLayer.setInMeasurementMode(true);
+		mapActivity.refreshMap();
 		mapActivity.disableDrawer();
 		mark(View.INVISIBLE, R.id.map_left_widgets_panel, R.id.map_right_widgets_panel, R.id.map_center_info);
 		mark(View.GONE, R.id.map_route_info_button, R.id.map_menu_button, R.id.map_compass_button, R.id.map_layers_button,
@@ -70,10 +97,13 @@ public class MeasurementToolFragment extends Fragment {
 		} else {
 			wasCollapseButtonVisible = false;
 		}
+
+		updateText();
 	}
 
 	private void exitMeasurementMode() {
 		measurementLayer.setInMeasurementMode(false);
+		mapActivity.refreshMap();
 		mapActivity.enableDrawer();
 		mark(View.VISIBLE, R.id.map_left_widgets_panel, R.id.map_right_widgets_panel, R.id.map_center_info,
 				R.id.map_route_info_button, R.id.map_menu_button, R.id.map_compass_button, R.id.map_layers_button,
@@ -83,6 +113,8 @@ public class MeasurementToolFragment extends Fragment {
 		if (collapseButton != null && wasCollapseButtonVisible) {
 			collapseButton.setVisibility(View.VISIBLE);
 		}
+
+		measurementLayer.clearPoints();
 	}
 
 	private void mark(int status, int... widgets) {
diff --git a/OsmAnd/src/net/osmand/plus/measurementtool/MeasurementToolLayer.java b/OsmAnd/src/net/osmand/plus/measurementtool/MeasurementToolLayer.java
index a027aa83fd..fcbe047319 100644
--- a/OsmAnd/src/net/osmand/plus/measurementtool/MeasurementToolLayer.java
+++ b/OsmAnd/src/net/osmand/plus/measurementtool/MeasurementToolLayer.java
@@ -1,31 +1,132 @@
 package net.osmand.plus.measurementtool;
 
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
 import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Path;
 
+import net.osmand.data.LatLon;
+import net.osmand.data.QuadPoint;
 import net.osmand.data.RotatedTileBox;
+import net.osmand.plus.GPXUtilities.WptPt;
+import net.osmand.plus.OsmAndFormatter;
+import net.osmand.plus.R;
 import net.osmand.plus.views.OsmandMapLayer;
 import net.osmand.plus.views.OsmandMapTileView;
+import net.osmand.util.MapUtils;
+
+import java.util.LinkedList;
 
 public class MeasurementToolLayer extends OsmandMapLayer {
 
+	private OsmandMapTileView view;
 	private boolean inMeasurementMode;
+	private LinkedList<WptPt> measurementPoints = new LinkedList<>();
+	private Bitmap centerIconDay;
+	private Bitmap centerIconNight;
+	private Bitmap pointIcon;
+	private Paint bitmapPaint;
+	private RenderingLineAttributes lineAttrs;
+	private Path path;
+	private int marginX;
+	private int marginY;
+
+	@Override
+	public void initLayer(OsmandMapTileView view) {
+		this.view = view;
+
+		centerIconDay = BitmapFactory.decodeResource(view.getResources(), R.drawable.map_ruler_center_day);
+		centerIconNight = BitmapFactory.decodeResource(view.getResources(), R.drawable.map_ruler_center_night);
+		pointIcon = BitmapFactory.decodeResource(view.getResources(), R.drawable.map_pedestrian_location);
+
+		bitmapPaint = new Paint();
+		bitmapPaint.setAntiAlias(true);
+		bitmapPaint.setDither(true);
+		bitmapPaint.setFilterBitmap(true);
+
+		lineAttrs = new RenderingLineAttributes("rulerLine");
+
+		path = new Path();
+		marginY = pointIcon.getHeight() / 2;
+		marginX = pointIcon.getWidth() / 2;
+	}
 
 	public boolean isInMeasurementMode() {
 		return inMeasurementMode;
 	}
 
-	public void setInMeasurementMode(boolean inMeasurementMode) {
+	void setInMeasurementMode(boolean inMeasurementMode) {
 		this.inMeasurementMode = inMeasurementMode;
 	}
 
-	@Override
-	public void initLayer(OsmandMapTileView view) {
+	int getPointsCount() {
+		return measurementPoints.size();
+	}
 
+	String getDistanceSt() {
+		float dist = 0;
+		if (measurementPoints.size() > 0) {
+			for (int i = 1; i < measurementPoints.size(); i++) {
+				dist += MapUtils.getDistance(measurementPoints.get(i - 1).lat, measurementPoints.get(i - 1).lon,
+						measurementPoints.get(i).lat, measurementPoints.get(i).lon);
+			}
+		}
+		return OsmAndFormatter.getFormattedDistance(dist, view.getApplication());
+	}
+
+	void clearPoints() {
+		measurementPoints.clear();
 	}
 
 	@Override
-	public void onDraw(Canvas canvas, RotatedTileBox tileBox, DrawSettings settings) {
+	public void onDraw(Canvas canvas, RotatedTileBox tb, DrawSettings settings) {
+		if (inMeasurementMode) {
+			lineAttrs.updatePaints(view, settings, tb);
+			drawCenterIcon(canvas, tb, tb.getCenterPixelPoint(), settings.isNightMode());
 
+			if (measurementPoints.size() > 0) {
+				path.reset();
+				for (int i = 0; i < measurementPoints.size(); i++) {
+					WptPt pt = measurementPoints.get(i);
+					int locX = tb.getPixXFromLonNoRot(pt.lon);
+					int locY = tb.getPixYFromLatNoRot(pt.lat);
+					if (i == 0) {
+						path.moveTo(locX, locY);
+					} else {
+						path.lineTo(locX, locY);
+					}
+
+					if (tb.containsLatLon(pt.lat, pt.lon)) {
+						canvas.drawBitmap(pointIcon, locX - marginX, locY - marginY, bitmapPaint);
+					}
+				}
+				path.lineTo(tb.getCenterPixelX(), tb.getCenterPixelY());
+				canvas.drawPath(path, lineAttrs.paint);
+			}
+		}
+	}
+
+	private void drawCenterIcon(Canvas canvas, RotatedTileBox tb, QuadPoint center, boolean nightMode) {
+		canvas.rotate(-tb.getRotate(), center.x, center.y);
+		if (nightMode) {
+			canvas.drawBitmap(centerIconNight, center.x - centerIconNight.getWidth() / 2,
+					center.y - centerIconNight.getHeight() / 2, bitmapPaint);
+		} else {
+			canvas.drawBitmap(centerIconDay, center.x - centerIconDay.getWidth() / 2,
+					center.y - centerIconDay.getHeight() / 2, bitmapPaint);
+		}
+		canvas.rotate(tb.getRotate(), center.x, center.y);
+	}
+
+	void addPointOnClick() {
+		RotatedTileBox tb = view.getCurrentRotatedTileBox();
+		LatLon l = tb.getLatLonFromPixel(tb.getCenterPixelX(), tb.getCenterPixelY());
+		WptPt pt = new WptPt();
+		pt.lat = l.getLatitude();
+		pt.lon = l.getLongitude();
+		measurementPoints.add(pt);
+		view.refreshMap();
 	}
 
 	@Override