mirror of https://github.com/M66B/FairEmail.git
138 lines
4.5 KiB
Java
138 lines
4.5 KiB
Java
package eu.faircode.email;
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/*
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This file is part of FairEmail.
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FairEmail 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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FairEmail 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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You should have received a copy of the GNU General Public License
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along with FairEmail. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2018-2024 by Marcel Bokhorst (M66B)
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*/
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.os.Build;
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import android.text.Layout;
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import android.text.Spanned;
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import android.text.style.BulletSpan;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.annotation.RequiresApi;
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public class BulletSpanEx extends BulletSpan {
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private int indentWidth;
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private int level;
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private String ltype;
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public BulletSpanEx(int indentWidth, int gapWidth, int color, int level) {
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this(indentWidth, gapWidth, color, level, null);
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}
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@RequiresApi(api = Build.VERSION_CODES.P)
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public BulletSpanEx(int indentWidth, int gapWidth, int color, int bulletRadius, int level) {
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this(indentWidth, gapWidth, color, bulletRadius, level, null);
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}
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public BulletSpanEx(int indentWidth, int gapWidth, int color, int level, String ltype) {
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super(gapWidth, color);
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this.indentWidth = indentWidth;
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this.level = level;
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this.ltype = ltype;
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}
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@RequiresApi(api = Build.VERSION_CODES.P)
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public BulletSpanEx(int indentWidth, int gapWidth, int color, int bulletRadius, int level, String ltype) {
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super(gapWidth, color, bulletRadius);
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this.indentWidth = indentWidth;
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this.level = level;
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this.ltype = ltype;
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}
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int getLevel() {
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return this.level;
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}
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void setLevel(int level) {
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this.level = level;
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}
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String getLType() {
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return this.ltype;
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}
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@Override
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public int getLeadingMargin(boolean first) {
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// https://issuetracker.google.com/issues/36956124
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// This is called before drawLeadingMargin to justify the text
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int margin = indentWidth * (level + 1);
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if (!"none".equals(ltype))
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margin += super.getLeadingMargin(first);
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return margin;
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}
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@Override
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public void drawLeadingMargin(@NonNull Canvas canvas, @NonNull Paint paint, int x, int dir, int top, int baseline, int bottom, @NonNull CharSequence text, int start, int end, boolean first, @Nullable Layout layout) {
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if ("none".equals(ltype))
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return;
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boolean mWantColor = false;
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int mColor = 0; // STANDARD_COLOR
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int mBulletRadius = 4; // STANDARD_BULLET_RADIUS
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
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mWantColor = true;
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mColor = getColor();
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mBulletRadius = getBulletRadius();
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}
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if (((Spanned) text).getSpanStart(this) == start) {
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Paint.Style style = paint.getStyle();
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int oldcolor = 0;
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if (mWantColor) {
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oldcolor = paint.getColor();
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paint.setColor(mColor);
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}
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paint.setStyle(Paint.Style.FILL);
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if (layout != null) {
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// "bottom" position might include extra space as a result of line spacing
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// configuration. Subtract extra space in order to show bullet in the vertical
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// center of characters.
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final int line = layout.getLineForOffset(start);
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//bottom = bottom - layout.getLineExtra(line);
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}
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final float yPosition = (top + bottom) / 2f;
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final float xPosition = x + dir * (mBulletRadius + indentWidth * (level + 1));
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if ("square".equals(ltype))
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canvas.drawRect(
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xPosition - mBulletRadius,
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yPosition - mBulletRadius,
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xPosition + mBulletRadius,
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yPosition + mBulletRadius,
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paint);
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else
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canvas.drawCircle(xPosition, yPosition, mBulletRadius, paint);
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if (mWantColor) {
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paint.setColor(oldcolor);
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}
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paint.setStyle(style);
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}
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}
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}
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