terrain ui work in progress

OsmAnd/res/drawable/bg_dark_transp.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+	<item>
+		<shape android:shape="rectangle">
+			<solid android:color="@color/terrain_empty_hint_bg" />
+			<corners android:radius="3dp" />
+		</shape>
+	</item>
+</selector>

OsmAnd/res/layout/fragment_terrain.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:app="http://schemas.android.com/apk/res-auto"
 	xmlns:tools="http://schemas.android.com/tools"
 	android:layout_width="match_parent"
 	android:layout_height="match_parent"
@@ -9,7 +10,7 @@
 
 	<LinearLayout
 		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
+		android:layout_height="match_parent"
 		android:orientation="vertical">
 
 		<LinearLayout
@@ -173,11 +174,20 @@
 
 				</LinearLayout>
 
-				<androidx.appcompat.widget.AppCompatSeekBar
+				<com.google.android.material.slider.Slider
 					android:id="@+id/transparency_slider"
+					style="@style/Widget.MaterialComponents.Slider"
 					android:layout_width="match_parent"
 					android:layout_height="wrap_content"
-					android:layout_marginTop="@dimen/list_header_settings_top_margin" />
+					android:layout_marginTop="@dimen/list_header_settings_top_margin"
+					android:stepSize="1"
+					android:theme="@style/Theme.MaterialComponents"
+					android:valueFrom="0"
+					android:valueTo="100"
+					app:haloRadius="@dimen/slider_thumb_halo_size"
+					app:thumbRadius="@dimen/slider_thumb_size"
+					app:tickColor="@android:color/transparent"
+					app:trackHeight="@dimen/slider_track_height" />
 
 				<View
 					android:layout_width="match_parent"
@@ -228,6 +238,7 @@
 				<LinearLayout
 					android:layout_width="match_parent"
 					android:layout_height="wrap_content"
+					android:gravity="center_vertical"
 					android:orientation="horizontal"
 					android:paddingStart="@dimen/content_padding"
 					android:paddingEnd="@dimen/content_padding">
@@ -242,17 +253,24 @@
 						tools:text="3" />
 
 					<com.google.android.material.slider.Slider
+						android:id="@+id/zoom_slider"
+						style="@style/Widget.MaterialComponents.Slider"
 						android:layout_width="0dp"
 						android:layout_height="wrap_content"
-						android:layout_marginStart="@dimen/content_padding"
-						android:layout_marginEnd="@dimen/content_padding"
-						android:layout_weight="1" />
+						android:layout_weight="1"
+						android:stepSize="1"
+						android:theme="@style/Theme.MaterialComponents"
+						android:valueFrom="2"
+						android:valueTo="22"
+						app:haloRadius="@dimen/slider_thumb_halo_size"
+						app:thumbRadius="@dimen/slider_thumb_size"
+						app:trackHeight="@dimen/slider_track_height" />
 
 					<net.osmand.plus.widgets.TextViewEx
 						android:id="@+id/zoom_value_max"
 						android:layout_width="wrap_content"
 						android:layout_height="wrap_content"
-						android:layout_gravity="end"
+						android:gravity="end"
 						android:textColor="?android:textColorSecondary"
 						android:textSize="@dimen/default_desc_text_size"
 						tools:text="19" />
@@ -358,16 +376,72 @@
 			android:background="?attr/bg_color"
 			android:orientation="vertical">
 
-			<ImageView
+			<FrameLayout
+				android:layout_width="match_parent"
+				android:layout_height="wrap_content"
+				android:layout_margin="@dimen/content_padding_small">
+
+				<androidx.appcompat.widget.AppCompatImageView
 					android:id="@+id/empty_state_image"
 					android:layout_width="match_parent"
-				android:layout_height="wrap_content" />
+					android:layout_height="match_parent"
+					android:adjustViewBounds="true"
+					android:scaleType="fitCenter"
+					android:src="@drawable/img_empty_state_terrain" />
+
+				<LinearLayout
+					android:layout_width="match_parent"
+					android:layout_height="match_parent"
+					android:orientation="horizontal">
+
+					<FrameLayout
+						android:layout_width="0dp"
+						android:layout_height="match_parent"
+						android:layout_weight="1">
+
+						<TextView
+							android:layout_width="wrap_content"
+							android:layout_height="wrap_content"
+							android:layout_gravity="start|bottom"
+							android:layout_margin="@dimen/content_padding_half"
+							android:background="@drawable/bg_dark_transp"
+							android:gravity="start|bottom"
+							android:padding="@dimen/map_button_margin"
+							android:text="@string/shared_string_hillshade"
+							android:textColor="@color/color_white" />
+
+					</FrameLayout>
+
+					<FrameLayout
+						android:layout_width="0dp"
+						android:layout_height="match_parent"
+						android:layout_weight="1">
+
+						<TextView
+							android:layout_width="wrap_content"
+							android:layout_height="wrap_content"
+							android:layout_gravity="start|bottom"
+							android:layout_margin="@dimen/content_padding_half"
+							android:background="@drawable/bg_dark_transp"
+							android:gravity="start|bottom"
+							android:padding="@dimen/map_button_margin"
+							android:text="@string/shared_string_slope"
+							android:textColor="@color/color_white" />
+
+					</FrameLayout>
+
+				</LinearLayout>
+
+			</FrameLayout>
 
 			<net.osmand.plus.widgets.TextViewEx
 				android:id="@+id/empty_state_description"
 				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_margin="@dimen/content_padding"
+				android:layout_height="match_parent"
+				android:layout_marginStart="@dimen/content_padding"
+				android:layout_marginEnd="@dimen/content_padding"
+				android:layout_marginBottom="@dimen/content_padding"
+				android:gravity="start"
 				android:textColor="?android:textColorSecondary"
 				android:textSize="@dimen/default_desc_text_size"
 				tools:text="@string/terrain_empty_state_text" />

OsmAnd/res/values/colors.xml

@@ -460,5 +460,6 @@
 
 	<color name="terrain_active_button">#1A237BFF</color>
 	<color name="terrain_active_button_stroke">#80237BFF</color>
+	<color name="terrain_empty_hint_bg">#80000000</color>
 
 </resources>

OsmAnd/res/values/sizes.xml

@@ -127,7 +127,6 @@
 	<dimen name="map_minwidth_widget">100dp</dimen>
 
 
-
 	<dimen name="map_widget_text_size">23sp</dimen>
 	<dimen name="map_top_widget_text_size">22sp</dimen>
 	<dimen name="map_widget_text_size_small">15sp</dimen>
@@ -356,4 +355,8 @@
 	<dimen name="setting_list_item_large_height">72dp</dimen>
 	<dimen name="setting_list_item_small_height">42dp</dimen>
 
+	<dimen name="slider_thumb_size">8dp</dimen>
+	<dimen name="slider_thumb_halo_size">12dp</dimen>
+	<dimen name="slider_track_height">2dp</dimen>
+
 </resources>

OsmAnd/res/values/strings.xml

@@ -16,7 +16,7 @@
     <string name="saving_new_profile">Saving new profile</string>
     <string name="profile_backup_failed">Could not back up profile.</string>
     <string name="shared_string_hillshade">Hillshade</string>
-    <string name="terrain_empty_state_text">Turn on to view the layer with shading relief or a map of the slope of the slopes. \n\nYou can find out why such cards are needed and how they work on our website</string>
+    <string name="terrain_empty_state_text">Enable to view hillshade or slope map. You can read more about this map types on our site</string>
     <string name="shared_string_legend">Legend</string>
     <string name="shared_string_zoom_levels">Zoom levels</string>
     <string name="shared_string_transparency">Transparency</string>

OsmAnd/src/net/osmand/plus/OsmandSettings.java

@@ -2097,6 +2097,18 @@ public class OsmandSettings {
 
 	public final CommonPreference<Boolean> HILLSHADE = new BooleanPreference("hillshade_layer", true).makeProfile();
 
+	public final CommonPreference<Integer> HILLSHADE_MIN_ZOOM = new IntPreference("hillshade_min_zoom", 3).makeProfile();
+
+	public final CommonPreference<Integer> HILLSHADE_MAX_ZOOM = new IntPreference("hillshade_max_zoom", 19).makeProfile();
+
+	public final CommonPreference<Integer> HILLSHADE_TRANSPARENCY = new IntPreference("hillshade_transparency", 100).makeProfile();
+
+	public final CommonPreference<Integer> SLOPE_MIN_ZOOM = new IntPreference("slope_min_zoom", 3).makeProfile();
+
+	public final CommonPreference<Integer> SLOPE_MAX_ZOOM = new IntPreference("slope_max_zoom", 19).makeProfile();
+
+	public final CommonPreference<Integer> SLOPE_TRANSPARENCY = new IntPreference("slope_transparency", 100).makeProfile();
+
 	public final CommonPreference<Boolean> TERRAIN = new BooleanPreference("terrain_layer", true).makeProfile();
 
 	public final CommonPreference<TerrainMode> TERRAIN_MODE = new EnumIntPreference<>("terrain_mode", TerrainMode.HILLSHADE, TerrainMode.values()).makeProfile();

OsmAnd/src/net/osmand/plus/srtmplugin/HillshadeLayer.java

@@ -38,6 +38,7 @@ public class HillshadeLayer extends MapTileLayer {
 	private final static int MAX_TRANSPARENCY_ZOOM = 17;
 	private final static int DEFAULT_ALPHA = 100;
 	private final static int MAX_TRANSPARENCY_ALPHA = 20;
+	private SRTMPlugin srtmPlugin;
 
 	private QuadTree<String> indexedResources = new QuadTree<String>(new QuadRect(0, 0, 1 << (ZOOM_BOUNDARY+1), 1 << (ZOOM_BOUNDARY+1)), 8, 0.55f);
 
@@ -47,6 +48,7 @@ public class HillshadeLayer extends MapTileLayer {
 		indexHillshadeFiles(app);
 		setAlpha(DEFAULT_ALPHA);
 		setMap(createTileSource(activity));
+		this.srtmPlugin = srtmPlugin;
 	}
 
 	@Override
@@ -54,7 +56,7 @@ public class HillshadeLayer extends MapTileLayer {
 		if (tileBox.getZoom() >= MAX_TRANSPARENCY_ZOOM) {
 			setAlpha(MAX_TRANSPARENCY_ALPHA);
 		} else {
-			setAlpha(DEFAULT_ALPHA);
+			setAlpha(srtmPlugin.getHillshadeTransparency());
 		}
 		super.onPrepareBufferImage(canvas, tileBox, drawSettings);
 	}

OsmAnd/src/net/osmand/plus/srtmplugin/SRTMPlugin.java

@@ -129,6 +129,7 @@ public class SRTMPlugin extends OsmandPlugin {
 	public String getHelpFileName() {
 		return "feature_articles/contour-lines-plugin.html";
 	}
+
 	@Override
 	public boolean init(@NonNull final OsmandApplication app, Activity activity) {
 		OsmandSettings settings = app.getSettings();
@@ -174,6 +175,72 @@ public class SRTMPlugin extends OsmandPlugin {
 		settings.TERRAIN_MODE.set(mode);
 	}
 
+	public void setTransparency(int transparency) {
+		switch (getTerrainMode()) {
+			case HILLSHADE:
+				settings.HILLSHADE_TRANSPARENCY.set(transparency);
+				break;
+			case SLOPE:
+				settings.SLOPE_TRANSPARENCY.set(transparency);
+				break;
+		}
+	}
+
+	public void setZoomValues(int minZoom, int maxZoom) {
+		switch (getTerrainMode()) {
+			case HILLSHADE:
+				settings.HILLSHADE_MIN_ZOOM.set(minZoom);
+				settings.HILLSHADE_MAX_ZOOM.set(maxZoom);
+				break;
+			case SLOPE:
+				settings.SLOPE_MIN_ZOOM.set(minZoom);
+				settings.SLOPE_MAX_ZOOM.set(maxZoom);
+				break;
+		}
+	}
+
+	public int getTransparency() {
+		switch (getTerrainMode()) {
+			case HILLSHADE:
+				return settings.HILLSHADE_TRANSPARENCY.get();
+			case SLOPE:
+				return settings.SLOPE_TRANSPARENCY.get();
+		}
+		return 100;
+	}
+
+	public int getHillshadeTransparency(){
+		return settings.HILLSHADE_TRANSPARENCY.get();
+	}
+
+	public int getHillshadeMinZoom(){
+		return settings.HILLSHADE_MIN_ZOOM.get();
+	}
+	public int getHillshadeMaxZoom(){
+		return settings.HILLSHADE_MAX_ZOOM.get();
+	}
+
+
+	public int getMinZoom() {
+		switch (getTerrainMode()) {
+			case HILLSHADE:
+				return settings.HILLSHADE_MIN_ZOOM.get();
+			case SLOPE:
+				return settings.SLOPE_MIN_ZOOM.get();
+		}
+		return 2;
+	}
+
+	public int getMaxZoom() {
+		switch (getTerrainMode()) {
+			case HILLSHADE:
+				return settings.HILLSHADE_MAX_ZOOM.get();
+			case SLOPE:
+				return settings.SLOPE_MAX_ZOOM.get();
+		}
+		return 19;
+	}
+
 	public static boolean isContourLinesLayerEnabled(OsmandApplication app) {
 		boolean contourLinesEnabled = false;
 

OsmAnd/src/net/osmand/plus/srtmplugin/TerrainFragment.java

@@ -1,9 +1,8 @@
 package net.osmand.plus.srtmplugin;
 
 import android.content.Intent;
-import android.graphics.Color;
+import android.content.res.ColorStateList;
 import android.net.Uri;
-import android.os.Build;
 import android.os.Bundle;
 import android.text.SpannableString;
 import android.text.Spanned;
@@ -12,7 +11,6 @@ import android.text.style.ClickableSpan;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.ArrayAdapter;
 import android.widget.FrameLayout;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
@@ -20,11 +18,12 @@ import android.widget.TextView;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.appcompat.widget.AppCompatSeekBar;
 import androidx.appcompat.widget.SwitchCompat;
+import androidx.core.content.ContextCompat;
 
-import net.osmand.plus.ContextMenuAdapter;
-import net.osmand.plus.ContextMenuItem;
+import com.google.android.material.slider.Slider;
+
+import net.osmand.PlatformUtil;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.OsmandPlugin;
 import net.osmand.plus.OsmandSettings;
@@ -33,25 +32,19 @@ import net.osmand.plus.R;
 import net.osmand.plus.UiUtilities;
 import net.osmand.plus.activities.MapActivity;
 import net.osmand.plus.base.BaseOsmAndFragment;
-import net.osmand.plus.chooseplan.ChoosePlanDialogFragment;
-import net.osmand.plus.download.DownloadActivityType;
-import net.osmand.plus.download.DownloadIndexesThread;
-import net.osmand.plus.download.DownloadResources;
-import net.osmand.plus.download.DownloadValidationManager;
-import net.osmand.plus.download.IndexItem;
 import net.osmand.plus.inapp.InAppPurchaseHelper;
 
-import java.io.IOException;
+import org.apache.commons.logging.Log;
+
 import java.util.List;
 
-import static net.osmand.plus.srtmplugin.ContourLinesMenu.closeDashboard;
 
-public class TerrainFragment extends BaseOsmAndFragment implements View.OnClickListener {
+public class TerrainFragment extends BaseOsmAndFragment implements View.OnClickListener,
+		Slider.OnSliderTouchListener, Slider.OnChangeListener {
 
 	public static final String TAG = TerrainFragment.class.getSimpleName();
-
-	//	TODO replace with correct string
-	private static final String SLOPES_WIKI_URL = "https://osmand.net/features/contour-lines-plugin";
+	private static final Log LOG = PlatformUtil.getLog(TerrainFragment.class.getSimpleName());
+	private static final String SLOPES_WIKI_URL = "https://en.wikipedia.org/wiki/Grade_(slope)";
 	private static final String PLUGIN_URL = "https://osmand.net/features/contour-lines-plugin";
 
 	private OsmandApplication app;
@@ -63,28 +56,33 @@ public class TerrainFragment extends BaseOsmAndFragment implements View.OnClickL
 	private boolean terrainEnabled;
 
 	private int colorProfile;
+	private ColorStateList colorProfileStateList;
+	private ColorStateList colorProfileInactiveStateList;
 
-	private TextView downloadDescriptionTv;
 	private TextView emptyStateDescriptionTv;
+	private TextView downloadDescriptionTv;
 	private TextView transparencyValueTv;
 	private TextView slopeReadMoreTv;
 	private TextView descriptionTv;
+	private TextView hillshadeBtn;
+	private TextView minZoomTv;
+	private TextView maxZoomTv;
+	private TextView slopeBtn;
 	private TextView titleTv;
 	private TextView stateTv;
-	private TextView slopeBtn;
-	private TextView hillshadeBtn;
-	private FrameLayout slopeBtnContainer;
 	private FrameLayout hillshadeBtnContainer;
+	private FrameLayout slopeBtnContainer;
 	private SwitchCompat switchCompat;
 	private ImageView iconIv;
-	private LinearLayout legendContainer;
 	private LinearLayout emptyState;
+	private LinearLayout legendContainer;
 	private LinearLayout contentContainer;
 	private LinearLayout downloadContainer;
-	private View legendTopDivider;
 	private View legendBottomDivider;
 	private View titleBottomDivider;
-	private AppCompatSeekBar transparencySlider;
+	private View legendTopDivider;
+	private Slider transparencySlider;
+	private Slider zoomSlider;
 
 	public TerrainFragment() {
 
@@ -100,6 +98,9 @@ public class TerrainFragment extends BaseOsmAndFragment implements View.OnClickL
 		srtmEnabled = OsmandPlugin.getEnabledPlugin(SRTMPlugin.class) != null
 				|| InAppPurchaseHelper.isSubscribedToLiveUpdates(app);
 		colorProfile = settings.getApplicationMode().getIconColorInfo().getColor(nightMode);
+		colorProfileStateList = ColorStateList.valueOf(ContextCompat.getColor(app, colorProfile));
+		colorProfileInactiveStateList = ColorStateList
+				.valueOf(UiUtilities.getColorWithAlpha(colorProfile, 0.6f));
 		terrainEnabled = srtmPlugin.isTerrainLayerEnabled();
 		super.onCreate(savedInstanceState);
 	}
@@ -126,29 +127,54 @@ public class TerrainFragment extends BaseOsmAndFragment implements View.OnClickL
 		stateTv = root.findViewById(R.id.state_tv);
 		iconIv = root.findViewById(R.id.icon_iv);
 		slopeBtn = root.findViewById(R.id.slope_btn);
+		zoomSlider = root.findViewById(R.id.zoom_slider);
+		minZoomTv = root.findViewById(R.id.zoom_value_min);
+		maxZoomTv = root.findViewById(R.id.zoom_value_max);
 		hillshadeBtn = root.findViewById(R.id.hillshade_btn);
 		slopeBtnContainer = root.findViewById(R.id.slope_btn_container);
-		hillshadeBtnContainer = root.findViewById(R.id.hillshade_btn_container);
 		downloadContainer = root.findViewById(R.id.download_container);
+		hillshadeBtnContainer = root.findViewById(R.id.hillshade_btn_container);
 
 		titleTv.setText(R.string.shared_string_terrain);
-		String emptyStateText = String.format(
-				getString(R.string.ltr_or_rtl_combine_via_colon),
-				getString(R.string.terrain_empty_state_text),
-				PLUGIN_URL
-		);
-		setupClickableText(emptyStateDescriptionTv, emptyStateText, PLUGIN_URL, PLUGIN_URL);
 		String wikiString = getString(R.string.shared_string_wikipedia);
 		String readMoreText = String.format(
 				getString(R.string.slope_read_more),
 				wikiString
 		);
+		String emptyStateText = String.format(
+				getString(R.string.ltr_or_rtl_combine_via_space),
+				getString(R.string.terrain_empty_state_text),
+				PLUGIN_URL
+		);
 		setupClickableText(slopeReadMoreTv, readMoreText, wikiString, SLOPES_WIKI_URL);
+		setupClickableText(emptyStateDescriptionTv, emptyStateText, PLUGIN_URL, PLUGIN_URL);
 
 		switchCompat.setChecked(terrainEnabled);
+		hillshadeBtn.setOnClickListener(this);
 		switchCompat.setOnClickListener(this);
 		slopeBtn.setOnClickListener(this);
-		hillshadeBtn.setOnClickListener(this);
+
+		transparencySlider.setTrackColorInactive(colorProfileInactiveStateList);
+		transparencySlider.setTrackColorActive(colorProfileStateList);
+		transparencySlider.setHaloColor(colorProfileInactiveStateList);
+		transparencySlider.setThumbColor(colorProfileStateList);
+		transparencySlider.setLabelBehavior(Slider.LABEL_GONE);
+		zoomSlider.setTrackColorInactive(colorProfileInactiveStateList);
+		zoomSlider.setTrackColorActive(colorProfileStateList);
+		zoomSlider.setHaloColor(colorProfileInactiveStateList);
+		zoomSlider.setThumbColor(colorProfileStateList);
+		zoomSlider.setLabelBehavior(Slider.LABEL_GONE);
+		zoomSlider.setTickColor(nightMode
+				? ColorStateList.valueOf(R.color.color_white)
+				: ColorStateList.valueOf(R.color.color_black));
+
+		transparencySlider.addOnSliderTouchListener(this);
+		zoomSlider.addOnSliderTouchListener(this);
+		transparencySlider.addOnChangeListener(this);
+		zoomSlider.addOnChangeListener(this);
+
+		UiUtilities.setupCompoundButton(switchCompat, nightMode, UiUtilities.CompoundButtonType.PROFILE_DEPENDENT);
+
 		updateUiMode();
 		return root;
 	}
@@ -170,15 +196,63 @@ public class TerrainFragment extends BaseOsmAndFragment implements View.OnClickL
 		}
 	}
 
+	@Override
+	public void onStartTrackingTouch(@NonNull Slider slider) {
+
+	}
+
+	@Override
+	public void onStopTrackingTouch(@NonNull Slider slider) {
+		switch (slider.getId()) {
+			case R.id.transparency_slider:
+				srtmPlugin.setTransparency((int) slider.getValue());
+				break;
+			case R.id.zoom_slider:
+				List<Float> values = slider.getValues();
+				srtmPlugin.setZoomValues(values.get(0).intValue(), values.get(1).intValue());
+				break;
+		}
+		MapActivity mapActivity = (MapActivity) getActivity();
+		srtmPlugin.updateLayers(mapActivity.getMapView(), mapActivity);
+	}
+
+	@Override
+	public void onValueChange(@NonNull Slider slider, float value, boolean fromUser) {
+		if (fromUser) {
+			switch (slider.getId()) {
+				case R.id.transparency_slider:
+					String transparency = (int) value + "%";
+					transparencyValueTv.setText(transparency);
+					break;
+				case R.id.zoom_slider:
+					List<Float> values = slider.getValues();
+					minZoomTv.setText(String.valueOf(values.get(0).intValue()));
+					maxZoomTv.setText(String.valueOf(values.get(1).intValue()));
+					break;
+			}
+		}
+	}
+
 	private void updateUiMode() {
 		TerrainMode mode = srtmPlugin.getTerrainMode();
 		if (terrainEnabled) {
+			int transparencyValue = srtmPlugin.getTransparency();
+			String transparency = transparencyValue + "%";
+			int minZoom = srtmPlugin.getMinZoom();
+			int maxZoom = srtmPlugin.getMaxZoom();
 			iconIv.setImageDrawable(uiUtilities.getIcon(R.drawable.ic_action_hillshade_dark, colorProfile));
 			stateTv.setText(R.string.shared_string_enabled);
+			transparencySlider.setValue(transparencyValue);
+			transparencyValueTv.setText(transparency);
+			zoomSlider.setValues((float) minZoom, (float) maxZoom);
+			minZoomTv.setText(String.valueOf(minZoom));
+			maxZoomTv.setText(String.valueOf(maxZoom));
 			switch (mode) {
 				case HILLSHADE:
 					descriptionTv.setText(R.string.hillshade_description);
 					downloadDescriptionTv.setText(R.string.hillshade_download_description);
+//					zoomSlider.setValueFrom();
+//					zoomSlider.setValueTo();
 					break;
 				case SLOPE:
 					descriptionTv.setText(R.string.slope_description);
@@ -255,7 +329,7 @@ public class TerrainFragment extends BaseOsmAndFragment implements View.OnClickL
 					? getResources().getColor(R.color.active_color_primary_dark)
 					: getResources().getColor(R.color.active_color_primary_light));
 		} catch (RuntimeException e) {
-//			LOG.error("Error trying to find index of " + clickableText + " " + e);
+			LOG.error("Error trying to find index of " + clickableText + " " + e);
 		}
 	}
 
@@ -273,6 +347,4 @@ public class TerrainFragment extends BaseOsmAndFragment implements View.OnClickL
 			updateUiMode();
 		}
 	}
-
 }
-