android/source/src/java/org/libreoffice/TileIdentifier.java

   1 /* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9 package org.libreoffice;
  10
  11 import android.graphics.Rect;
  12 import android.graphics.RectF;
  13
  14 import org.mozilla.gecko.gfx.IntSize;
  15
  16 /**
  17  * Identifies the tile by its position (x and y coordinate on the document), zoom and tile size (currently static)
  18  */
  19 public class TileIdentifier {
  20     public final int x;
  21     public final int y;
  22     public final float zoom;
  23     public final IntSize size;
  24
  25     public TileIdentifier(int x, int y, float zoom, IntSize size) {
  26         this.x = x;
  27         this.y = y;
  28         this.zoom = zoom;
  29         this.size = size;
  30     }
  31
  32     /**
  33      * Returns a rectangle of the tiles position in scaled coordinates.
  34      */
  35     public RectF getRectF() {
  36         return new RectF(x, y, x + size.width, y + size.height);
  37     }
  38
  39     /**
  40      * Returns a rectangle of the tiles position in non-scaled coordinates (coordinates as the zoom would be 1).
  41      */
  42     public RectF getCSSRectF() {
  43         float cssX = x / zoom;
  44         float cssY = y / zoom;
  45         float cssSizeW = size.width / zoom;
  46         float cssSizeH = size.height / zoom;
  47         return new RectF(cssX, cssY, cssX + cssSizeW, cssY + cssSizeH);
  48     }
  49
  50     /**
  51      * Returns an integer rectangle of the tiles position in non-scaled and rounded coordinates (coordinates as the zoom would be 1).
  52      */
  53     public Rect getCSSRect() {
  54         float cssX = x / zoom;
  55         float cssY = y / zoom;
  56         float sizeW = size.width / zoom;
  57         float sizeH = size.height / zoom;
  58         return new Rect(
  59                 (int) cssX, (int) cssY,
  60                 (int) (cssX + sizeW),
  61                 (int) (cssY + sizeH) );
  62     }
  63
  64     @Override
  65     public boolean equals(Object o) {
  66         if (this == o) return true;
  67         if (o == null || getClass() != o.getClass()) return false;
  68
  69         TileIdentifier that = (TileIdentifier) o;
  70
  71         if (x != that.x) return false;
  72         if (y != that.y) return false;
  73         if (Float.compare(that.zoom, zoom) != 0) return false;
  74
  75         return true;
  76     }
  77
  78     @Override
  79     public int hashCode() {
  80         int result = x;
  81         result = 31 * result + y;
  82         result = 31 * result + (zoom != +0.0f ? Float.floatToIntBits(zoom) : 0);
  83         return result;
  84     }
  85
  86     @Override
  87     public String toString() {
  88         return String.format("TileIdentifier (%d, %d) z=%f s=(%d, %d)", x, y, zoom, size.width, size.height);
  89     }
  90 }
  91
  92 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */