com.samrj.devil.ui.Paragraph.java Source code

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Here is the source code for com.samrj.devil.ui.Paragraph.java

Source

package com.samrj.devil.ui;

import com.samrj.devil.math.Vec2;
import java.util.ArrayList;
import org.lwjgl.opengl.GL11;

/**
 * @author Samuel Johnson (SmashMaster)
 * @copyright 2014 Samuel Johnson
 * @license https://github.com/SmashMaster/DevilUtil/blob/master/LICENSE
 */
public class Paragraph {
    private float width;
    private String[] lines;
    private Font font;

    public Paragraph(String text, Font font, float width) {
        this.font = font;
        this.width = width;
        setText(text);
    }

    public void setText(String text) {
        ArrayList<String> lines = new ArrayList();
        String line = "";
        String word = "";
        float lineX = 0f;
        float wordX = 0f;

        for (int i = 0; i < text.length(); i++) {
            char c = text.charAt(i);
            float cWidth = font.getWidth(c);
            switch (c) {
            case '\n':
                line += word;
                lineX += wordX;
                lines.add(line);
                line = "";
                lineX = 0f;
                word = "";
                wordX = 0f;
                continue;
            case ' ':
                if (lineX + wordX > width) {
                    lines.add(line);
                    line = "";
                    lineX = 0f;
                } else {
                    word += c;
                    wordX += cWidth;
                    line += word;
                    lineX += wordX;
                    word = "";
                    wordX = 0;
                    break;
                }
            default:
                word += c;
                wordX += cWidth;
                break;
            }
        }

        if (lineX + wordX > width) {
            lines.add(line);
            lines.add(word);
        } else
            lines.add(line + word);

        this.lines = new String[lines.size()];

        for (int i = 0; i < lines.size(); i++)
            this.lines[i] = lines.get(i).trim();
    }

    public float getHeight() {
        return font.getHeight() * lines.length;
    }

    public void draw(Vec2 pos, Alignment a) {
        if (a == null)
            throw new IllegalArgumentException();

        GL11.glPushMatrix();
        GL11.glTranslatef(pos.x, pos.y, 0f);

        float y = 0f;
        for (int i = 0; i < lines.length; i++) {
            font.draw(lines[i], new Vec2(0f, y), a);
            y -= font.getHeight();
        }

        GL11.glPopMatrix();
    }

    public void draw(Vec2 pos) {
        draw(pos, Alignment.W);
    }
}