快运——————》福伴

lmw

2023-03-11 4df5bb59e5fe9f9d140e5610f7772dd8a05a28d4

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package com.beloo.widget.chipslayoutmanager.layouter;
 
import android.graphics.Rect;
import android.view.View;
 
import androidx.annotation.NonNull;
 
class RightLayouter extends AbstractLayouter {
 
    private boolean isPurged;
 
    private RightLayouter(Builder builder) {
        super(builder);
    }
 
    public static Builder newBuilder() {
        return new Builder();
    }
 
    @Override
    Rect createViewRect(View view) {
        Rect viewRect = new Rect(viewLeft, viewTop, viewLeft + getCurrentViewWidth(), viewTop + getCurrentViewHeight());
 
        viewBottom = viewRect.bottom;
        viewTop = viewBottom;
        viewRight = Math.max(viewRight, viewRect.right);
        return viewRect;
    }
 
    @Override
    boolean isReverseOrder() {
        return false;
    }
 
    @Override
    void onPreLayout() {
        if (!rowViews.isEmpty()) {
            //todo this isn't great place for that. Should be refactored somehow
            if (!isPurged) {
                isPurged = true;
                getCacheStorage().purgeCacheFromPosition(getLayoutManager().getPosition(rowViews.get(0).second));
            }
 
            //cache only when go down
            getCacheStorage().storeRow(rowViews);
        }
    }
 
    @Override
    void onAfterLayout() {
        //go to next column, increase left coordinate, reset top
        viewLeft = getViewRight();
        viewTop = getCanvasTopBorder();
    }
 
    @Override
    boolean isAttachedViewFromNewRow(View view) {
        int leftOfCurrentView = getLayoutManager().getDecoratedLeft(view);
        int topOfCurrentView = getLayoutManager().getDecoratedTop(view);
 
        return viewRight <= leftOfCurrentView
                && topOfCurrentView < viewTop;
    }
 
    @Override
    void onInterceptAttachView(View view) {
        viewTop = getLayoutManager().getDecoratedBottom(view);
        viewLeft = getLayoutManager().getDecoratedLeft(view);
        viewRight = Math.max(viewRight, getLayoutManager().getDecoratedRight(view));
    }
 
    @Override
    public int getStartRowBorder() {
        return getViewLeft();
    }
 
    @Override
    public int getEndRowBorder() {
        return getViewRight();
    }
 
    @Override
    public int getRowLength() {
        return viewTop - getCanvasTopBorder();
    }
 
    public static final class Builder extends AbstractLayouter.Builder {
        private Builder() {
        }
 
        @NonNull
        public RightLayouter createLayouter() {
            return new RightLayouter(this);
        }
    }
}