app/src/main/java/jp/sourceforge/gokigen/memoma/drawers/ObjectShapeDrawer.java

   1 package jp.sourceforge.gokigen.memoma.drawers;
   2
   3 import android.graphics.Canvas;
   4 import android.graphics.Color;
   5 import android.graphics.Matrix;
   6 import android.graphics.Paint;
   7 import android.graphics.Path;
   8 import android.graphics.RectF;
   9
  10 import jp.sourceforge.gokigen.memoma.drawers.MeMoMaCanvasDrawer;
  11 import jp.sourceforge.gokigen.memoma.holders.MeMoMaObjectHolder;
  12
  13 /**
  14  *   めもまのオブジェクト・ライン・ラベルを描画するメソッド群
  15  *   (現在のところ、MeMoMaCanvasDrawerクラスから追い出してきただけ...)
  16  *
  17  * @author MRSa
  18  *
  19  */
  20 public class ObjectShapeDrawer
  21 {
  22
  23
  24     static public float drawObjectOval(Canvas canvas, RectF objectShape, Paint paint)
  25     {
  26         // 楕円形の描画
  27         canvas.drawOval(objectShape, paint);
  28
  29         return (MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN / 2);
  30     }
  31
  32     static public float drawObjectRect(Canvas canvas, RectF objectShape, Paint paint)
  33     {
  34                 // 四角形を描画する
  35         canvas.drawRect(objectShape, paint);
  36         return (0.0f);
  37     }
  38
  39     static public float drawObjectRoundRect(Canvas canvas, RectF objectShape, Paint paint)
  40     {
  41                 // 丸角四角形の描画
  42         canvas.drawRoundRect(objectShape, MeMoMaObjectHolder.ROUNDRECT_CORNER_RX, MeMoMaObjectHolder.ROUNDRECT_CORNER_RY, paint);
  43
  44         return (0.0f);
  45     }
  46
  47     static public float drawObjectDiamond(Canvas canvas, RectF objectShape, Paint paint)
  48     {
  49                 // 菱形の描画
  50         Path path = new Path();
  51         path.moveTo(objectShape.centerX(), objectShape.top);
  52         path.lineTo(objectShape.left, objectShape.centerY());
  53         path.lineTo(objectShape.centerX(), objectShape.bottom);
  54         path.lineTo(objectShape.right, objectShape.centerY());
  55         path.lineTo(objectShape.centerX(), objectShape.top);
  56         canvas.drawPath(path, paint);
  57         return (MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN / 2);
  58     }
  59
  60     static public float drawObjectKeyboard(Canvas canvas, RectF objectShape, Paint paint)
  61     {
  62                 // 台形(キーボード型)の描画
  63         Path path = new Path();
  64         path.moveTo(objectShape.left, objectShape.centerY() - MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN);
  65         path.lineTo(objectShape.left, objectShape.bottom);
  66         path.lineTo(objectShape.right, objectShape.bottom);
  67         path.lineTo(objectShape.right, objectShape.top);
  68         path.lineTo(objectShape.left, objectShape.centerY() - MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN);
  69         canvas.drawPath(path, paint);
  70         return (MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN);
  71     }
  72
  73     static public float drawObjectParallelogram(Canvas canvas, RectF objectShape, Paint paint)
  74     {
  75                 // 平行四辺形の描画
  76         Path path = new Path();
  77         path.moveTo(objectShape.left + MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN, objectShape.top);
  78         path.lineTo(objectShape.left, objectShape.bottom);
  79         path.lineTo(objectShape.right - MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN, objectShape.bottom);
  80         path.lineTo(objectShape.right, objectShape.top);
  81         path.lineTo(objectShape.left + MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN, objectShape.top);
  82         canvas.drawPath(path, paint);
  83         return (MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN / 2.0f);
  84     }
  85
  86     static public float drawObjectHexagonal(Canvas canvas, RectF objectShape, Paint paint)
  87     {
  88                 // 六角形の描画
  89         Path path = new Path();
  90         float margin = MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN * 2;
  91         path.moveTo(objectShape.left + margin, objectShape.top);
  92         path.lineTo(objectShape.left, objectShape.centerY());
  93         path.lineTo(objectShape.left + margin, objectShape.bottom);
  94         path.lineTo(objectShape.right - margin, objectShape.bottom);
  95         path.lineTo(objectShape.right, objectShape.centerY());
  96         path.lineTo(objectShape.right - margin, objectShape.top);
  97         path.lineTo(objectShape.left + margin, objectShape.top);
  98         canvas.drawPath(path, paint);
  99         return (MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN / 2.0f);
 100     }
 101
 102     static public float drawObjectPaper(Canvas canvas, RectF objectShape, Paint paint)
 103     {
 104                 // 書類の形の描画
 105         float margin = MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN * 3.0f;
 106         Path path = new Path();
 107         path.moveTo(objectShape.left, objectShape.top);
 108         path.lineTo(objectShape.left, objectShape.bottom - margin);
 109         path.cubicTo((objectShape.left + objectShape.centerX()) / 2.0f , objectShape.bottom, (objectShape.right + objectShape.centerX()) / 2.0f, objectShape.bottom - margin, objectShape.right, objectShape.bottom - margin);
 110         path.lineTo(objectShape.right, objectShape.top);
 111         path.lineTo(objectShape.left, objectShape.top);
 112         canvas.drawPath(path, paint);
 113         return ( - MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN);
 114     }
 115
 116     static public float drawObjectDrum(Canvas canvas, RectF objectShape, Paint paint, Paint.Style paintStyle)
 117     {
 118                 float margin = MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN * 1.0f;
 119                 // 円柱の描画
 120         Path path = new Path();
 121         path.moveTo(objectShape.left, objectShape.top);
 122         path.arcTo(new RectF(objectShape.left, objectShape.top,objectShape.right, objectShape.top + margin), 180.0f, 359.999f, true);
 123         path.lineTo(objectShape.left, objectShape.bottom - (margin / 2.0f));
 124         path.arcTo(new RectF(objectShape.left, objectShape.bottom - margin, objectShape.right, objectShape.bottom), 180.0f, -180.0f, true);
 125         path.lineTo(objectShape.right, objectShape.top + (margin / 2.0f));
 126         if (paintStyle != Paint.Style.STROKE)
 127         {
 128                 // 塗りつぶし用に線の領域を追加する
 129             path.arcTo(new RectF(objectShape.left, objectShape.top, objectShape.right, objectShape.top + margin), 180.0f, 180.0f, true);
 130             path.lineTo(objectShape.left, objectShape.bottom - (margin / 2.0f));
 131             path.arcTo(new RectF(objectShape.left, objectShape.bottom - margin, objectShape.right, objectShape.bottom), 180.0f, -180.0f, true);
 132         }
 133         canvas.drawPath(path, paint);
 134         return (MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN / 2.0f);
 135     }
 136
 137     static public float drawObjectCircle(Canvas canvas, RectF objectShape, Paint paint)
 138     {
 139                 // 円を描画する
 140         canvas.drawCircle(objectShape.centerX(), objectShape.centerY(), ((objectShape.right - objectShape.left)/ 2.0f), paint);
 141         return (MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN / 2.0f);
 142     }
 143
 144     static public float drawObjectNoRegion(Canvas canvas, RectF objectShape, Paint paint)
 145     {
 146                 // 何も表示しないとわからないので、ラベルが無いときには枠を表示する
 147         paint.setColor(Color.DKGRAY);
 148         canvas.drawRect(objectShape, paint);
 149         paint.setColor(Color.WHITE);
 150         return (0.0f);
 151     }
 152
 153     static public float drawObjectLoopStart(Canvas canvas, RectF objectShape, Paint paint)
 154     {
 155                 // ループ開始図形の描画
 156         Path path = new Path();
 157         float margin = MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN * 2;
 158         path.moveTo(objectShape.left + margin, objectShape.top);
 159         path.lineTo(objectShape.left, objectShape.centerY());
 160         path.lineTo(objectShape.left, objectShape.bottom);
 161         path.lineTo(objectShape.right, objectShape.bottom);
 162         path.lineTo(objectShape.right, objectShape.centerY());
 163         path.lineTo(objectShape.right - margin, objectShape.top);
 164         path.lineTo(objectShape.left + margin, objectShape.top);
 165         canvas.drawPath(path, paint);
 166         return (MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN / 2.0f);
 167     }
 168
 169     static public float drawObjectLoopEnd(Canvas canvas, RectF objectShape, Paint paint)
 170     {
 171                 // ループ終了図形の描画
 172         Path path = new Path();
 173         float margin = MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN * 2;
 174         path.moveTo(objectShape.left, objectShape.top);
 175         path.lineTo(objectShape.left, objectShape.centerY());
 176         path.lineTo(objectShape.left + margin, objectShape.bottom);
 177         path.lineTo(objectShape.right - margin, objectShape.bottom);
 178         path.lineTo(objectShape.right, objectShape.centerY());
 179         path.lineTo(objectShape.right, objectShape.top);
 180         path.lineTo(objectShape.left, objectShape.top);
 181         canvas.drawPath(path, paint);
 182         return (MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN / 2.0f);
 183     }
 184
 185     static public float drawObjectLeftArrow(Canvas canvas, RectF objectShape, Paint paint)
 186     {
 187                 // 左側矢印図形の描画
 188         Path path = new Path();
 189         float margin = MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN * 4.0f;
 190         path.moveTo(objectShape.left + margin, objectShape.top);
 191         path.lineTo(objectShape.left, objectShape.centerY());
 192         path.lineTo(objectShape.left + margin, objectShape.bottom);
 193         path.lineTo(objectShape.right, objectShape.bottom);
 194         path.lineTo(objectShape.right, objectShape.top);
 195         path.lineTo(objectShape.left + margin, objectShape.top);
 196         canvas.drawPath(path, paint);
 197         return (MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN / 2.0f);
 198     }
 199
 200     static public float drawObjectDownArrow(Canvas canvas, RectF objectShape, Paint paint)
 201     {
 202                 // 下側矢印図形の描画
 203         Path path = new Path();
 204         float margin = MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN * 2;
 205         path.moveTo(objectShape.left, objectShape.top);
 206         path.lineTo(objectShape.left, objectShape.centerY() + margin);
 207         path.lineTo(objectShape.centerX(), objectShape.bottom);
 208         path.lineTo(objectShape.right, objectShape.centerY() + margin);
 209         path.lineTo(objectShape.right, objectShape.top);
 210         path.lineTo(objectShape.left, objectShape.top);
 211         canvas.drawPath(path, paint);
 212         return (- MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN);
 213     }
 214
 215     static public float drawObjectUpArrow(Canvas canvas, RectF objectShape, Paint paint)
 216     {
 217                 // 上側矢印図形の描画
 218         Path path = new Path();
 219         float margin = MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN * 2.0f;
 220         path.moveTo(objectShape.centerX(), objectShape.top);
 221         path.lineTo(objectShape.left, objectShape.centerY() - margin);
 222         path.lineTo(objectShape.left, objectShape.bottom);
 223         path.lineTo(objectShape.right, objectShape.bottom);
 224         path.lineTo(objectShape.right, objectShape.centerY() - margin);
 225         path.lineTo(objectShape.centerX(), objectShape.top);
 226         canvas.drawPath(path, paint);
 227         return (MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN / 2.0f);
 228     }
 229
 230     static public float drawObjectRightArrow(Canvas canvas, RectF objectShape, Paint paint)
 231     {
 232                 // 右側矢印図形の描画
 233         Path path = new Path();
 234         float margin = MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN * 4.0f;
 235         path.moveTo(objectShape.left, objectShape.top);
 236         path.lineTo(objectShape.left, objectShape.bottom);
 237         path.lineTo(objectShape.right - margin, objectShape.bottom);
 238         path.lineTo(objectShape.right, objectShape.centerY());
 239         path.lineTo(objectShape.right - margin, objectShape.top);
 240         path.lineTo(objectShape.left, objectShape.top);
 241         canvas.drawPath(path, paint);
 242         return (MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN / 2.0f);
 243     }
 244
 245     static public void drawLineStraight(Canvas canvas)
 246     {
 247
 248     }
 249           /**
 250            *    矢印を描画する処理 (ツリー表示時)
 251            *
 252            * @param canvas
 253            * @param paint
 254            * @param x1
 255            * @param y1
 256            * @param checkValue
 257            * @param isXaxis
 258            */
 259         static public void drawArrowTree(Canvas canvas, Paint paint, float x1, float y1, float checkValue, boolean isXaxis)
 260     {
 261                 float margin = 8.0f;
 262                 float direction = 1.0f;
 263                 if (isXaxis == true)
 264         {
 265                     direction = (checkValue < x1) ? -1.0f : 1.0f;
 266             canvas.drawLine(x1, y1, (x1 + direction * margin), (y1 - margin), paint);
 267                 canvas.drawLine(x1, y1, (x1 + direction * margin), (y1 + margin), paint);
 268                 }
 269                 else
 270                 {
 271                     direction = (checkValue < y1) ? -1.0f : 1.0f;
 272                 canvas.drawLine(x1, y1, (x1 - margin), (y1 + direction * margin), paint);
 273                 canvas.drawLine(x1, y1, (x1 + margin), (y1 + direction * margin), paint);
 274                 }
 275     }
 276           /**
 277            *    矢印を描画する処理
 278            *
 279            * @param canvas
 280            * @param paint
 281            * @param x1
 282            * @param y1
 283            * @param x2
 284            * @param y2
 285            */
 286           static public void drawArrow(Canvas canvas, Paint paint, float x1, float y1, float x2, float y2)
 287           {
 288           // 矢印線の長さ
 289                   float moveX = 14.0f;
 290
 291                   // 接続線の傾きが、どれくらいの角度で入っているか？
 292                   float centerDegree = (float) (Math.atan2((y2 - y1) , (x2 - x1))  * 180.0d / Math.PI);
 293
 294                   // x1, y1 に x2, y2 方向から来た線に合わせた矢印を描画する
 295                   // (2本、１本づつ引いて、それを回転行列で回転させている)
 296
 297                   // 回転行列の準備
 298                   Matrix matrix1 = new Matrix();
 299                   matrix1.setRotate((centerDegree + 30), x1, y1);
 300               Matrix matrix2 = new Matrix();
 301                   matrix2.setRotate((centerDegree - 30), x1, y1);
 302
 303                   // 線分を引いた後、回転行列で回転させる
 304                   Path pathLine1 = new Path();
 305               pathLine1.moveTo(x1, y1);
 306               pathLine1.lineTo(x1 + moveX, y1);
 307               pathLine1.transform(matrix1);
 308               canvas.drawPath(pathLine1, paint);
 309
 310                   Path pathLine2 = new Path();
 311               pathLine2.moveTo(x1, y1);
 312               pathLine2.lineTo(x1 + moveX, y1);
 313               pathLine2.transform(matrix2);
 314               canvas.drawPath(pathLine2, paint);
 315     }
 316
 317           /**
 318              *    オブジェクトのラベルを表示する
 319              *
 320              * @param canvas
 321              * @param paint
 322              * @param pos
 323              */
 324             public static void drawTextLabel(Canvas canvas, Paint paint, MeMoMaObjectHolder.PositionObject pos, RectF region, int displayObjectInformation, float offsetX, float offsetY)
 325             {
 326                 // タイトルの先頭部分を表示する場合...
 327                 String labelToShow = pos.label;
 328                 if (displayObjectInformation == 0)
 329                 {
 330                 float width = region.width() - MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN_WIDTH;
 331                 int textLen = paint.breakText(pos.label, true, width, null);  // 省略文字を追加するから、そのぶん減らす
 332                 labelToShow = labelToShow.substring(0, textLen);
 333                 if (labelToShow != pos.label)
 334                 {
 335                         // truncate した場合には、省略文字を出す。
 336                         labelToShow = labelToShow + "...";
 337                 }
 338                 }
 339
 340                 if (Paint.Style.valueOf(pos.paintStyle) != Paint.Style.STROKE)
 341                 {
 342                     // オブジェクトを塗りつぶすのときは、文字の色を設定する
 343                     paint.setColor(pos.labelColor);
 344                 }
 345
 346                 // 文字をちょっと影付きにする
 347             paint.setStyle(Paint.Style.FILL_AND_STROKE);
 348                 paint.setShadowLayer(0.5f, 0.5f, 0.5f, Color.DKGRAY);
 349
 350                 // ユーザチェックの描画
 351                 if (pos.userChecked == true)
 352                 {
 353                         canvas.drawText("*", region.centerX(), region.top + (MeMoMaCanvasDrawer.OBJECTLABEL_MARGIN * 2.0f), paint);
 354                }
 355
 356                 // 強調表示
 357                 if (pos.strokeWidth != 0.0f)
 358                 {
 359                         // そのまま表示すると、読めないので、太さを調整し、アンダーラインを引くことにする
 360                         paint.setStrokeWidth(0.0f);
 361                     paint.setSubpixelText(true);
 362                     paint.setUnderlineText (true);
 363                 }
 364
 365                 if (displayObjectInformation == 0)
 366                 {
 367                         // １行分しか表示しない場合...そのまま表示して終了する
 368                     canvas.drawText(labelToShow, (region.left + offsetX),   (region.centerY() + offsetY), paint);
 369                     return;
 370                 }
 371
 372                 float tall = paint.getFontMetrics().top + 1.0f;
 373                 float posX = (region.left + offsetX);
 374                 float posY =  (region.centerY() + offsetY);
 375                 float width = region.right - region.left - 12.0f;  // 幅
 376
 377                 int startChar  = 0;
 378                 int endChar = pos.label.length();
 379                 do
 380                 {
 381                     int textLen = paint.breakText(pos.label, startChar, endChar, true, width, null);
 382                     canvas.drawText(labelToShow, startChar, (startChar +textLen), posX, posY, paint);
 383
 384                     posY = posY - tall;
 385                     startChar = startChar + textLen;
 386                 } while (startChar < endChar);
 387             }
 388 }