49 lines
1.6 KiB
Java
49 lines
1.6 KiB
Java
/*
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* Twidere - Twitter client for Android
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*
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* Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.mariotaku.twidere.text;
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import android.graphics.Paint.FontMetricsInt;
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import android.text.Spanned;
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import android.text.style.LineHeightSpan;
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/**
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* Created by mariotaku on 14/11/22.
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*/
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public class ParagraphSpacingSpan implements LineHeightSpan {
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private final float spacingMultiplier;
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public ParagraphSpacingSpan(float spacingMultiplier) {
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this.spacingMultiplier = spacingMultiplier;
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}
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@Override
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public void chooseHeight(CharSequence text, int start, int end,
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int spanstartv, int v, FontMetricsInt fm) {
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Spanned spanned = (Spanned) text;
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int en = spanned.getSpanEnd(this);
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if (end - 1 == en) {
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final int extra = Math.round((fm.bottom - fm.top) * (spacingMultiplier - 1));
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fm.descent += extra;
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fm.bottom += extra;
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}
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}
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}
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