MultiValuesPainter.java :  » Game » andoku » com » googlecode » andoku » Android Open Source

/*
 * Andoku - a sudoku puzzle game for Android.
 * Copyright (C) 2009  Markus Wiederkehr
 *
 * This file is part of Andoku.
 *
 * Andoku is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Andoku is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Andoku.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.googlecode.andoku;

import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Paint.FontMetrics;

import com.googlecode.andoku.model.ValueSet;

public class MultiValuesPainter {
  private Theme theme;

  private float textOffset;
  private float baselineDist;
  private float xOffset;

  private float cellWidth;
  private float cellHeight;

  public MultiValuesPainter() {
  }

  public void setTheme(Theme theme) {
    this.theme = theme;
  }

  public void setPuzzleSize(int puzzleSize) {
    // TODO
  }

  public void setCellSize(float cellSizeX, float cellSizeY) {
    this.cellWidth = cellSizeX;
    this.cellHeight = cellSizeY;

    float fontSize = cellHeight * 0.3f;
    setFontSize(fontSize);
  }

  public void paintValues(Canvas canvas, ValueSet values) {
    for (int value = values.nextValue(0); value != -1; value = values.nextValue(value + 1)) {
      int vrow = value / 3;
      int vcol = value % 3;
      String dv = String.valueOf(theme.getSymbol(value));
      float py = textOffset + vrow * baselineDist;
      float px = vcol == 0 ? xOffset : (vcol == 1 ? cellWidth / 2f : cellWidth - xOffset);
      Paint paint = theme.getDigitPaint();
      canvas.drawText(dv, px, py, paint);
    }
  }

  private void setFontSize(float fontSize) {
    Paint digitPaint = theme.getDigitPaint();
    digitPaint.setTextSize(fontSize);

    FontMetrics fontMetrics = digitPaint.getFontMetrics();
    float fontHeight = -fontMetrics.ascent - fontMetrics.descent;
    int rows = 3;
    float spacing = (cellHeight - rows * fontHeight) / (rows + 1);
    baselineDist = fontHeight + spacing;
    textOffset = cellHeight - spacing - (rows - 1) * baselineDist + 0.5f;
    xOffset = spacing + digitPaint.measureText("5") / 2;
  }
}