diff options
Diffstat (limited to 'platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/snapshotter/MapSnapshotter.java')
| -rw-r--r-- | platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/snapshotter/MapSnapshotter.java | 179 |
1 files changed, 154 insertions, 25 deletions
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/snapshotter/MapSnapshotter.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/snapshotter/MapSnapshotter.java index 5deedc3e63..1c59bb468e 100644 --- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/snapshotter/MapSnapshotter.java +++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/snapshotter/MapSnapshotter.java @@ -5,19 +5,31 @@ import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Matrix; +import android.graphics.PointF; +import android.os.Handler; import android.support.annotation.NonNull; import android.support.annotation.Nullable; import android.support.annotation.UiThread; +import android.support.v4.content.res.ResourcesCompat; +import android.text.Html; import android.util.DisplayMetrics; +import android.view.View; +import android.view.ViewGroup; +import android.widget.TextView; import com.mapbox.mapboxsdk.R; +import com.mapbox.mapboxsdk.attribution.AttributionLayout; +import com.mapbox.mapboxsdk.attribution.AttributionMeasure; +import com.mapbox.mapboxsdk.attribution.AttributionParser; import com.mapbox.mapboxsdk.camera.CameraPosition; import com.mapbox.mapboxsdk.constants.Style; import com.mapbox.mapboxsdk.geometry.LatLngBounds; import com.mapbox.mapboxsdk.storage.FileSource; +import timber.log.Timber; + /** - * The map snapshotter creates a bitmap of the map, rendered + * The map snapshotter creates a large of the map, rendered * off the UI thread. The snapshotter itself must be used on * the UI thread (for access to the main looper) */ @@ -269,43 +281,126 @@ public class MapSnapshotter { * @param mapSnapshot the map snapshot to draw the overlay on */ protected void addOverlay(MapSnapshot mapSnapshot) { - Bitmap original = mapSnapshot.getBitmap(); - Canvas canvas = new Canvas(original); - addLogo(canvas, original); + Bitmap snapshot = mapSnapshot.getBitmap(); + Canvas canvas = new Canvas(snapshot); + int margin = (int) context.getResources().getDisplayMetrics().density * LOGO_MARGIN_DP; + drawOverlay(mapSnapshot, snapshot, canvas, margin); + } + + private void drawOverlay(MapSnapshot mapSnapshot, Bitmap snapshot, Canvas canvas, int margin) { + AttributionMeasure measure = getAttributionMeasure(mapSnapshot, snapshot, margin); + AttributionLayout layout = measure.measure(); + drawLogo(mapSnapshot, canvas, margin, layout); + drawAttribution(mapSnapshot, canvas, measure, layout); + } + + private AttributionMeasure getAttributionMeasure(MapSnapshot mapSnapshot, Bitmap snapshot, int margin) { + Logo logo = createScaledLogo(snapshot); + TextView longText = createTextView(mapSnapshot, false, logo.getScale()); + TextView shortText = createTextView(mapSnapshot, true, logo.getScale()); + + return new AttributionMeasure.Builder() + .setSnapshot(snapshot) + .setLogo(logo.getLarge()) + .setLogoSmall(logo.getSmall()) + .setTextView(longText) + .setTextViewShort(shortText) + .setMarginPadding(margin) + .build(); + } + + private void drawLogo(MapSnapshot mapSnapshot, Canvas canvas, int margin, AttributionLayout layout) { + if (mapSnapshot.isShowLogo()) { + drawLogo(mapSnapshot.getBitmap(), canvas, margin, layout); + } + } + + private void drawLogo(Bitmap snapshot, Canvas canvas, int margin, AttributionLayout placement) { + Bitmap selectedLogo = placement.getLogo(); + if (selectedLogo != null) { + canvas.drawBitmap(selectedLogo, margin, snapshot.getHeight() - selectedLogo.getHeight() - margin, null); + } + } + + private void drawAttribution(MapSnapshot mapSnapshot, Canvas canvas, + AttributionMeasure measure, AttributionLayout layout) { + // draw attribution + PointF anchorPoint = layout.getAnchorPoint(); + if (anchorPoint != null) { + drawAttribution(canvas, measure, anchorPoint); + } else { + Bitmap snapshot = mapSnapshot.getBitmap(); + Timber.e("Could not generate attribution for snapshot size: %s x %s." + + " You are required to provide your own attribution for the used sources: %s", + snapshot.getWidth(), snapshot.getHeight(), mapSnapshot.getAttributions()); + } + } + + private void drawAttribution(Canvas canvas, AttributionMeasure measure, PointF anchorPoint) { + canvas.save(); + canvas.translate(anchorPoint.x, anchorPoint.y); + measure.getTextView().draw(canvas); + canvas.restore(); + } + + private TextView createTextView(MapSnapshot mapSnapshot, boolean shortText, float scale) { + int textColor = ResourcesCompat.getColor(context.getResources(), R.color.mapbox_gray_dark, context.getTheme()); + int widthMeasureSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); + int heightMeasureSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); + TextView textView = new TextView(context); + textView.setLayoutParams(new ViewGroup.LayoutParams( + ViewGroup.LayoutParams.WRAP_CONTENT, + ViewGroup.LayoutParams.WRAP_CONTENT) + ); + textView.setSingleLine(true); + textView.setTextSize(10 * scale); + textView.setTextColor(textColor); + textView.setBackgroundResource(R.drawable.mapbox_rounded_corner); + textView.setText(Html.fromHtml(createAttributionString(mapSnapshot, shortText))); + textView.measure(widthMeasureSpec, heightMeasureSpec); + textView.layout(0, 0, textView.getMeasuredWidth(), textView.getMeasuredHeight()); + return textView; } /** - * Draw a logo on the canvas created from the map snapshot. + * Create the attribution string. * - * @param canvas the canvas to draw the bitmap on - * @param original the map snapshot image + * @param mapSnapshot the map snapshot to create the attribution for + * @param shortText indicates if the short variant of the string should be parsed + * @return the parsed attribution string */ - private void addLogo(Canvas canvas, Bitmap original) { - DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics(); - float margin = displayMetrics.density * LOGO_MARGIN_DP; - Bitmap logo = createScaledLogo(original); - canvas.drawBitmap(logo, margin, original.getHeight() - logo.getHeight() - margin, null); + private String createAttributionString(MapSnapshot mapSnapshot, boolean shortText) { + AttributionParser attributionParser = new AttributionParser.Options() + .withAttributionData(mapSnapshot.getAttributions()) + .withCopyrightSign(false) + .withImproveMap(false) + .build(); + + return attributionParser.createAttributionString(shortText); } /** * Create a scaled logo for a map snapshot. * * @param snapshot the map snapshot where the logo should be placed on - * @return the scaled bitmap logo + * @return the scaled large logo */ - private Bitmap createScaledLogo(Bitmap snapshot) { + private Logo createScaledLogo(@NonNull Bitmap snapshot) { Bitmap logo = BitmapFactory.decodeResource(context.getResources(), R.drawable.mapbox_logo_icon, null); float scale = calculateLogoScale(snapshot, logo); Matrix matrix = new Matrix(); matrix.postScale(scale, scale); - return Bitmap.createBitmap(logo, 0, 0, logo.getWidth(), logo.getHeight(), matrix, true); + Bitmap helmet = BitmapFactory.decodeResource(context.getResources(), R.drawable.mapbox_logo_helmet, null); + Bitmap large = Bitmap.createBitmap(logo, 0, 0, logo.getWidth(), logo.getHeight(), matrix, true); + Bitmap small = Bitmap.createBitmap(helmet, 0, 0, helmet.getWidth(), helmet.getHeight(), matrix, true); + return new Logo(large, small, scale); } /** * Calculates the scale of the logo, only allow downscaling. * - * @param snapshot the bitmap of the map snapshot - * @param logo the bitmap of the mapbox logo + * @param snapshot the large of the map snapshot + * @param logo the large of the mapbox logo * @return the scale value */ private float calculateLogoScale(Bitmap snapshot, Bitmap logo) { @@ -315,7 +410,14 @@ public class MapSnapshotter { float prefWidth = logo.getWidth() / widthRatio; float prefHeight = logo.getHeight() / heightRatio; float calculatedScale = Math.min(prefWidth / logo.getWidth(), prefHeight / logo.getHeight()) * 2; - return calculatedScale < 1 ? calculatedScale : 1.0f; + if (calculatedScale > 1) { + // don't allow over-scaling + calculatedScale = 1.0f; + } else if (calculatedScale < 0.60f) { + // don't scale to low either + calculatedScale = 0.60f; + } + return calculatedScale; } /** @@ -324,14 +426,17 @@ public class MapSnapshotter { * * @param snapshot the generated snapshot */ - protected void onSnapshotReady(MapSnapshot snapshot) { - if (callback != null) { - if (snapshot.isShowLogo()) { - addOverlay(snapshot); + protected void onSnapshotReady(final MapSnapshot snapshot) { + new Handler().post(new Runnable() { + @Override + public void run() { + if (callback != null) { + addOverlay(snapshot); + callback.onSnapshotReady(snapshot); + reset(); + } } - callback.onSnapshotReady(snapshot); - reset(); - } + }); } /** @@ -364,4 +469,28 @@ public class MapSnapshotter { @Override protected native void finalize() throws Throwable; + + private class Logo { + private Bitmap large; + private Bitmap small; + private float scale; + + public Logo(Bitmap large, Bitmap small, float scale) { + this.large = large; + this.small = small; + this.scale = scale; + } + + public Bitmap getLarge() { + return large; + } + + public Bitmap getSmall() { + return small; + } + + public float getScale() { + return scale; + } + } } |