mirror of https://github.com/NekoX-Dev/NekoX.git
301 lines
8.8 KiB
Java
301 lines
8.8 KiB
Java
/*
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* This is the source code of Telegram for Android v. 3.x.x.
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* It is licensed under GNU GPL v. 2 or later.
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* You should have received a copy of the license in this archive (see LICENSE).
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*
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* Copyright Nikolai Kudashov, 2013-2017.
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*/
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package org.telegram.ui.ActionBar;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.graphics.Typeface;
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import android.graphics.drawable.Drawable;
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import android.text.Layout;
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import android.text.SpannableStringBuilder;
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import android.text.StaticLayout;
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import android.text.TextPaint;
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import android.text.TextUtils;
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import android.view.Gravity;
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import android.view.View;
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import org.telegram.messenger.AndroidUtilities;
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public class SimpleTextView extends View implements Drawable.Callback {
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private Layout layout;
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private TextPaint textPaint;
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private int gravity = Gravity.LEFT | Gravity.TOP;
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private CharSequence text;
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private SpannableStringBuilder spannableStringBuilder;
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private Drawable leftDrawable;
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private Drawable rightDrawable;
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private int drawablePadding = AndroidUtilities.dp(4);
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private int leftDrawableTopPadding;
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private int rightDrawableTopPadding;
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private int offsetX;
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private int textWidth;
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private int textHeight;
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private boolean wasLayout;
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public SimpleTextView(Context context) {
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super(context);
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textPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
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}
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public void setTextColor(int color) {
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textPaint.setColor(color);
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invalidate();
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}
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public void setLinkTextColor(int color) {
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textPaint.linkColor = color;
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invalidate();
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}
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@Override
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protected void onDetachedFromWindow() {
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super.onDetachedFromWindow();
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wasLayout = false;
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}
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public void setTextSize(int size) {
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int newSize = AndroidUtilities.dp(size);
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if (newSize == textPaint.getTextSize()) {
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return;
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}
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textPaint.setTextSize(newSize);
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if (!recreateLayoutMaybe()) {
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invalidate();
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}
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}
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public void setGravity(int value) {
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gravity = value;
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}
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public void setTypeface(Typeface typeface) {
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textPaint.setTypeface(typeface);
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}
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public int getSideDrawablesSize() {
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int size = 0;
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if (leftDrawable != null) {
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size += leftDrawable.getIntrinsicWidth() + drawablePadding;
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}
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if (rightDrawable != null) {
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size += rightDrawable.getIntrinsicWidth() + drawablePadding;
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}
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return size;
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}
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public Paint getPaint() {
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return textPaint;
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}
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private void calcOffset(int width) {
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if (layout.getLineCount() > 0) {
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textWidth = (int) Math.ceil(layout.getLineWidth(0));
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textHeight = layout.getLineBottom(0);
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if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT) {
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offsetX = -(int) layout.getLineLeft(0);
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} else if (layout.getLineLeft(0) == 0) {
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offsetX = width - textWidth;
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} else {
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offsetX = -AndroidUtilities.dp(8);
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}
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offsetX += getPaddingLeft();
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}
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}
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private boolean createLayout(int width) {
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if (text != null) {
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try {
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if (leftDrawable != null) {
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width -= leftDrawable.getIntrinsicWidth();
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width -= drawablePadding;
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}
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if (rightDrawable != null) {
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width -= rightDrawable.getIntrinsicWidth();
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width -= drawablePadding;
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}
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CharSequence string = TextUtils.ellipsize(text, textPaint, width, TextUtils.TruncateAt.END);
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/*if (layout != null && TextUtils.equals(layout.getText(), string)) {
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calcOffset(width);
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return false;
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}*/
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layout = new StaticLayout(string, 0, string.length(), textPaint, width + AndroidUtilities.dp(8), Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, false);
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calcOffset(width);
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} catch (Exception ignore) {
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}
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} else {
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layout = null;
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textWidth = 0;
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textHeight = 0;
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}
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invalidate();
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return true;
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}
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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int width = MeasureSpec.getSize(widthMeasureSpec);
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int height = MeasureSpec.getSize(heightMeasureSpec);
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createLayout(width - getPaddingLeft() - getPaddingRight());
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int finalHeight;
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if (MeasureSpec.getMode(heightMeasureSpec) == MeasureSpec.EXACTLY) {
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finalHeight = height;
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} else {
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finalHeight = textHeight;
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}
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setMeasuredDimension(width, finalHeight);
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}
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@Override
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protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
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wasLayout = true;
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}
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public int getTextWidth() {
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return textWidth;
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}
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public int getTextHeight() {
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return textHeight;
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}
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public void setLeftDrawableTopPadding(int value) {
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leftDrawableTopPadding = value;
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}
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public void setRightDrawableTopPadding(int value) {
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rightDrawableTopPadding = value;
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}
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public void setLeftDrawable(int resId) {
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setLeftDrawable(resId == 0 ? null : getContext().getResources().getDrawable(resId));
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}
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public void setRightDrawable(int resId) {
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setRightDrawable(resId == 0 ? null : getContext().getResources().getDrawable(resId));
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}
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public void setLeftDrawable(Drawable drawable) {
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if (leftDrawable == drawable) {
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return;
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}
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if (leftDrawable != null) {
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leftDrawable.setCallback(null);
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}
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leftDrawable = drawable;
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if (drawable != null) {
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drawable.setCallback(this);
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}
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if (!recreateLayoutMaybe()) {
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invalidate();
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}
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}
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public void setRightDrawable(Drawable drawable) {
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if (rightDrawable == drawable) {
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return;
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}
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if (rightDrawable != null) {
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rightDrawable.setCallback(null);
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}
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rightDrawable = drawable;
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if (drawable != null) {
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drawable.setCallback(this);
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}
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if (!recreateLayoutMaybe()) {
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invalidate();
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}
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}
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public void setText(CharSequence value) {
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setText(value, false);
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}
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public void setText(CharSequence value, boolean force) {
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if (text == null && value == null || !force && text != null && value != null && text.equals(value)) {
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return;
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}
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text = value;
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recreateLayoutMaybe();
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}
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public void setDrawablePadding(int value) {
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if (drawablePadding == value) {
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return;
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}
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drawablePadding = value;
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if (!recreateLayoutMaybe()) {
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invalidate();
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}
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}
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private boolean recreateLayoutMaybe() {
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if (wasLayout) {
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return createLayout(getMeasuredWidth());
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} else {
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requestLayout();
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}
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return true;
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}
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public CharSequence getText() {
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if (text == null) {
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return "";
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}
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return text;
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}
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@Override
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protected void onDraw(Canvas canvas) {
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int textOffsetX = 0;
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if (leftDrawable != null) {
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int y = (textHeight - leftDrawable.getIntrinsicHeight()) / 2 + leftDrawableTopPadding;
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leftDrawable.setBounds(0, y, leftDrawable.getIntrinsicWidth(), y + leftDrawable.getIntrinsicHeight());
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leftDrawable.draw(canvas);
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if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT) {
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textOffsetX += drawablePadding + leftDrawable.getIntrinsicWidth();
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}
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}
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if (rightDrawable != null) {
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int x = textOffsetX + textWidth + drawablePadding;
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int y = (textHeight - rightDrawable.getIntrinsicHeight()) / 2 + rightDrawableTopPadding;
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rightDrawable.setBounds(x, y, x + rightDrawable.getIntrinsicWidth(), y + rightDrawable.getIntrinsicHeight());
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rightDrawable.draw(canvas);
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}
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if (layout != null) {
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if (offsetX + textOffsetX != 0) {
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canvas.save();
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canvas.translate(offsetX + textOffsetX, 0);
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}
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layout.draw(canvas);
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if (offsetX + textOffsetX != 0) {
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canvas.restore();
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}
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}
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}
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@Override
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public void invalidateDrawable(Drawable who) {
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if (who == leftDrawable) {
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invalidate(leftDrawable.getBounds());
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} else if (who == rightDrawable) {
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invalidate(rightDrawable.getBounds());
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}
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}
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@Override
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public boolean hasOverlappingRendering() {
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return false;
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}
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}
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