Android Open Source - android-bubble-text Awesome Bubble

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Back to project page android-bubble-text.

License

The source code is released under:

MIT License

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Java Source Code

package com.oliveira.bubble;
/* w ww  . j av  a 2 s .c om*/
import android.graphics.*;
import android.text.*;

public class AwesomeBubble {

    private String text;
    private Rect rect;
    private StaticLayout textLayout;
    private boolean isPressed;
    protected BubbleStyle style;
    private TextPaint text_paint;
    private int containerWidth = 0;

    public AwesomeBubble (String text, int containerWidth, BubbleStyle style, TextPaint text_paint) {
        this.style = style;
        this.text_paint = text_paint;
        this.text = text;
        resetWidth(containerWidth);
    }

    public AwesomeBubble resetWidth(int containerWidth) {

        containerWidth -= DefaultBubbles.long_bubble_workaround;
        if (this.containerWidth == containerWidth) {
            return this;
        }

        this.containerWidth = containerWidth;
        text_paint.setTextSize(style.textSize);

        int correction = 0;
        if (android.os.Build.VERSION.SDK_INT >= 18) {
            correction = 1;
        }

        int maximum_w = containerWidth - 4 * style.bubblePadding;
        int desired_w = (int)StaticLayout.getDesiredWidth(text, text_paint) + correction;
        int best_w = Math.max(Math.min(maximum_w, desired_w), 0);
        textLayout = new StaticLayout(text, text_paint, best_w, Layout.Alignment.ALIGN_CENTER, 1.0f, 1, false);
        if (desired_w > maximum_w) {
            makeOneLiner(maximum_w);
        }
        setPosition(0, 0);
        return this;
    }

    public AwesomeBubble makeOneLiner(int width) {
        text_paint.setTextSize(style.textSize);
        int i = text_paint.breakText(textLayout.getText().toString(), true, (float)width, null);
        while (i > 1 && textLayout.getLineCount() > 1) {
            textLayout = new StaticLayout(textLayout.getText().subSequence(0, i - 1) + "\u2026",
                    text_paint, width, Layout.Alignment.ALIGN_NORMAL, 1.0f, 1, false);
            i--;
        }
        return this;
    }

    public int getWidth() {
        return textLayout == null ? 0 : textLayout.getWidth() + 4*style.bubblePadding;
    }

    public int getHeight() {
        return textLayout == null ? 0 : textLayout.getHeight() + 2*style.bubblePadding;
    }

    public void setPosition(int x, int y) {
        rect = new Rect(x, y, x + getWidth(), y + getHeight());
    }

    public void draw(Canvas canvas) {

        if (textLayout == null) {
            return;
        }

        if (isPressed && style.pressed != null) {
            style.pressed.setBounds(rect);
            style.pressed.draw(canvas);
        } else if (!isPressed && style.active != null){
            style.active.setBounds(rect);
            style.active.draw(canvas);
        }
        canvas.translate(rect.left+2*style.bubblePadding, rect.top+style.bubblePadding);
        text_paint.setTextSize(style.textSize);
        text_paint.setColor(isPressed ? style.textPressedColor : style.textColor);
        text_paint.setAntiAlias(true);
        textLayout.draw(canvas);
        canvas.translate(-rect.left-2*style.bubblePadding, -rect.top-style.bubblePadding);
    }

    public void setPressed(boolean value) {
        this.isPressed = value;
    }

    public String text() {
        return text;
    }

    public Rect rect() {
        return rect;
    }
}

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