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[android] - finalise integration and layout logic
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230 changes: 230 additions & 0 deletions
230
...MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/attribution/AttributionMeasure.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,230 @@ | ||
| package com.mapbox.mapboxsdk.attribution; | ||
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| import android.graphics.Bitmap; | ||
| import android.graphics.PointF; | ||
| import android.widget.TextView; | ||
|
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| import java.util.Arrays; | ||
| import java.util.List; | ||
|
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| public class AttributionMeasure { | ||
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| private Bitmap logo; | ||
| private Bitmap logoSmall; | ||
| private Bitmap snapshot; | ||
| private TextView textView; | ||
| private TextView textViewShort; | ||
| private float margin; | ||
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| private boolean shorterText; | ||
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| AttributionMeasure(Bitmap snapshot, Bitmap logo, Bitmap logoSmall, TextView tv, TextView tvShort, float margin) { | ||
| this.snapshot = snapshot; | ||
| this.logo = logo; | ||
| this.logoSmall = logoSmall; | ||
| this.textView = tv; | ||
| this.textViewShort = tvShort; | ||
| this.margin = margin; | ||
| } | ||
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| public AttributionLayout measure() { | ||
| Chain chain = new Chain( | ||
| new FullLogoLongTextCommand(), | ||
| new FullLogoShortTextCommand(), | ||
| new SmallLogoLongTextCommand(), | ||
| new SmallLogoShortTextCommand(), | ||
| new LongTextCommand(), | ||
| new ShortTextCommand(), | ||
| new NoTextCommand() | ||
| ); | ||
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| AttributionLayout attributionLayout = chain.start(this); | ||
| shorterText = attributionLayout.isShortText(); | ||
| return attributionLayout; | ||
| } | ||
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| private static class FullLogoLongTextCommand implements Command { | ||
| public AttributionLayout execute(AttributionMeasure measure) { | ||
| float width = measure.getLogoContainerWidth() + measure.getTextViewContainerWidth(); | ||
| boolean fitBounds = width <= measure.getMaxSize(); | ||
| if (fitBounds) { | ||
| PointF anchor = calculateAnchor(measure.snapshot, measure.textView, measure.margin); | ||
| return new AttributionLayout(measure.logo, anchor, false); | ||
| } | ||
| return null; | ||
| } | ||
| } | ||
|
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| private static class FullLogoShortTextCommand implements Command { | ||
| @Override | ||
| public AttributionLayout execute(AttributionMeasure measure) { | ||
| float width = measure.getLogoContainerWidth() + measure.getTextViewShortContainerWidth(); | ||
| boolean fitBounds = width <= measure.getMaxSizeShort(); | ||
| if (fitBounds) { | ||
| PointF anchor = calculateAnchor(measure.snapshot, measure.textView, measure.margin); | ||
| return new AttributionLayout(measure.logo, anchor, true); | ||
| } | ||
| return null; | ||
| } | ||
| } | ||
|
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| private static class SmallLogoLongTextCommand implements Command { | ||
| @Override | ||
| public AttributionLayout execute(AttributionMeasure measure) { | ||
| float width = measure.getLogoSmallContainerWidth() + measure.getTextViewContainerWidth(); | ||
| boolean fitBounds = width <= measure.getMaxSize(); | ||
| if (fitBounds) { | ||
| PointF anchor = calculateAnchor(measure.snapshot, measure.textView, measure.margin); | ||
| return new AttributionLayout(measure.logoSmall, anchor, false); | ||
| } | ||
| return null; | ||
| } | ||
| } | ||
|
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| private static class SmallLogoShortTextCommand implements Command { | ||
| @Override | ||
| public AttributionLayout execute(AttributionMeasure measure) { | ||
| float width = measure.getLogoContainerWidth() + measure.getTextViewShortContainerWidth(); | ||
| boolean fitBounds = width <= measure.getMaxSizeShort(); | ||
| if (fitBounds) { | ||
| PointF anchor = calculateAnchor(measure.snapshot, measure.textViewShort, measure.margin); | ||
| return new AttributionLayout(measure.logoSmall, anchor, true); | ||
| } | ||
| return null; | ||
| } | ||
| } | ||
|
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| private static class LongTextCommand implements Command { | ||
| @Override | ||
| public AttributionLayout execute(AttributionMeasure measure) { | ||
| float width = measure.getTextViewContainerWidth() + measure.margin; | ||
| boolean fitBounds = width <= measure.getMaxSize(); | ||
| if (fitBounds) { | ||
| return new AttributionLayout(null, calculateAnchor(measure.snapshot, measure.textView, measure.margin), false); | ||
| } | ||
| return null; | ||
| } | ||
| } | ||
|
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| private static class ShortTextCommand implements Command { | ||
| @Override | ||
| public AttributionLayout execute(AttributionMeasure measure) { | ||
| float width = measure.getTextViewShortContainerWidth() + measure.margin; | ||
| boolean fitBounds = width <= measure.getMaxSizeShort(); | ||
| if (fitBounds) { | ||
| PointF anchor = calculateAnchor(measure.snapshot, measure.textViewShort, measure.margin); | ||
| return new AttributionLayout(null, anchor, true); | ||
| } | ||
| return null; | ||
| } | ||
| } | ||
|
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| private static class NoTextCommand implements Command { | ||
| @Override | ||
| public AttributionLayout execute(AttributionMeasure measure) { | ||
| return new AttributionLayout(null, null, false); | ||
| } | ||
| } | ||
|
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| private static PointF calculateAnchor(Bitmap snapshot, TextView textView, float margin) { | ||
| return new PointF( | ||
| snapshot.getWidth() - textView.getMeasuredWidth() - margin, | ||
| snapshot.getHeight() - margin - textView.getMeasuredHeight() | ||
| ); | ||
| } | ||
|
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| public TextView getTextView() { | ||
| return shorterText ? textViewShort : textView; | ||
| } | ||
|
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| private class Chain { | ||
| public List<Command> commands; | ||
|
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| Chain(Command... commands) { | ||
| this.commands = Arrays.asList(commands); | ||
| } | ||
|
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| public AttributionLayout start(AttributionMeasure measure) { | ||
| AttributionLayout attributionLayout = null; | ||
| for (Command command : commands) { | ||
| attributionLayout = command.execute(measure); | ||
| if (attributionLayout != null) { | ||
| break; | ||
| } | ||
| } | ||
| return attributionLayout; | ||
| } | ||
| } | ||
|
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| public interface Command { | ||
| AttributionLayout execute(AttributionMeasure measure); | ||
| } | ||
|
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| private float getTextViewContainerWidth() { | ||
| return textView.getMeasuredWidth() + margin; | ||
| } | ||
|
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| private float getLogoContainerWidth() { | ||
| return logo.getWidth() + (2 * margin); | ||
| } | ||
|
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| private float getTextViewShortContainerWidth() { | ||
| return textViewShort.getMeasuredWidth() + margin; | ||
| } | ||
|
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| private float getLogoSmallContainerWidth() { | ||
| return logoSmall.getWidth() + (2 * margin); | ||
| } | ||
|
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| private float getMaxSize() { | ||
| return snapshot.getWidth() * 8 / 10; | ||
| } | ||
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| private float getMaxSizeShort() { | ||
| return snapshot.getWidth(); | ||
| } | ||
|
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| public static class Builder { | ||
| private Bitmap snapshot; | ||
| private Bitmap logo; | ||
| private Bitmap logoSmall; | ||
| private TextView textView; | ||
| private TextView textViewShort; | ||
| private float marginPadding; | ||
|
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| public Builder setSnapshot(Bitmap snapshot) { | ||
| this.snapshot = snapshot; | ||
| return this; | ||
| } | ||
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| public Builder setLogo(Bitmap logo) { | ||
| this.logo = logo; | ||
| return this; | ||
| } | ||
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| public Builder setLogoSmall(Bitmap logoSmall) { | ||
| this.logoSmall = logoSmall; | ||
| return this; | ||
| } | ||
|
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| public Builder setTextView(TextView textView) { | ||
| this.textView = textView; | ||
| return this; | ||
| } | ||
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| public Builder setTextViewShort(TextView textViewShort) { | ||
| this.textViewShort = textViewShort; | ||
| return this; | ||
| } | ||
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| public Builder setMarginPadding(float marginPadding) { | ||
| this.marginPadding = marginPadding; | ||
| return this; | ||
| } | ||
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| public AttributionMeasure build() { | ||
| return new AttributionMeasure(snapshot, logo, logoSmall, textView, textViewShort, marginPadding); | ||
| } | ||
| } | ||
| } |
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