| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| LayoutInfo |
|
| 1.0;1 |
| 1 | /* | |
| 2 | * Copyright 2002 - 2007 JEuclid, http://jeuclid.sf.net | |
| 3 | * | |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 5 | * you may not use this file except in compliance with the License. | |
| 6 | * You may obtain a copy of the License at | |
| 7 | * | |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 9 | * | |
| 10 | * Unless required by applicable law or agreed to in writing, software | |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 13 | * See the License for the specific language governing permissions and | |
| 14 | * limitations under the License. | |
| 15 | */ | |
| 16 | ||
| 17 | /* $Id: LayoutInfo.java,v 686a662dbcbe 2009/01/28 09:11:26 maxberger $ */ | |
| 18 | ||
| 19 | package net.sourceforge.jeuclid.layout; | |
| 20 | ||
| 21 | import java.util.List; | |
| 22 | ||
| 23 | /** | |
| 24 | * Represented Information about a layouted object. | |
| 25 | * <p> | |
| 26 | * | |
| 27 | * The completeness of this information depends on the objects | |
| 28 | * {@link LayoutStage}. | |
| 29 | * <p> | |
| 30 | * Each object is described with: | |
| 31 | * <ul> | |
| 32 | * <li>Origin: {@link #getPosX(LayoutStage)}, {@link #getPosY(LayoutStage)}) | |
| 33 | * <li>Horizontal Size: {@link #getWidth(LayoutStage)}) | |
| 34 | * <li>Vertical Size: {@link #getAscentHeight(LayoutStage)}, | |
| 35 | * {@link #getDescentHeight(LayoutStage)} | |
| 36 | * </ul> | |
| 37 | * <p> | |
| 38 | * Coordinates are given relative to the baseline. If the object has no | |
| 39 | * descent, this means the origin of the object is the lower left corner. | |
| 40 | * <p> | |
| 41 | * The actual Graphical representation can be retrieved with | |
| 42 | * {@link #getGraphicObjects()}. | |
| 43 | * <p> | |
| 44 | * The stretch information ( {@link #getStretchAscent()}, | |
| 45 | * {@link #getStretchDescent()}, {@link #getStretchWidth()}) is set during the | |
| 46 | * parents layout and defines the size to which stretchable operators are | |
| 47 | * scaled to. | |
| 48 | * | |
| 49 | * @version $Revision: 686a662dbcbe $ | |
| 50 | */ | |
| 51 | public interface LayoutInfo { | |
| 52 | ||
| 53 | /** | |
| 54 | * The {@link LayoutStage} this element represents. The information will | |
| 55 | * not be complete until the final LayoutStage ({@link LayoutStage#STAGE2} | |
| 56 | * ) has been reached. | |
| 57 | * | |
| 58 | * @return current layout stage. | |
| 59 | */ | |
| 60 | LayoutStage getLayoutStage(); | |
| 61 | ||
| 62 | /** | |
| 63 | * @param newStage | |
| 64 | * new Layout Stage. | |
| 65 | */ | |
| 66 | void setLayoutStage(LayoutStage newStage); | |
| 67 | ||
| 68 | /** | |
| 69 | * Returns the current height of the upper part of this component from the | |
| 70 | * baseline. | |
| 71 | * | |
| 72 | * @return Height of the upper part | |
| 73 | * @param stage | |
| 74 | * {@link LayoutStage} to get this information for (either | |
| 75 | * {@link LayoutStage#STAGE1} or {@link LayoutStage#STAGE2}) | |
| 76 | */ | |
| 77 | float getAscentHeight(LayoutStage stage); | |
| 78 | ||
| 79 | /** | |
| 80 | * Returns the current height of the lower part of this component from the | |
| 81 | * baseline. | |
| 82 | * | |
| 83 | * @return Height of the lower part. | |
| 84 | * @param stage | |
| 85 | * {@link LayoutStage} to get this information for (either | |
| 86 | * {@link LayoutStage#STAGE1} or {@link LayoutStage#STAGE2}) | |
| 87 | */ | |
| 88 | float getDescentHeight(LayoutStage stage); | |
| 89 | ||
| 90 | /** | |
| 91 | * Returns the current width of this element. | |
| 92 | * | |
| 93 | * @return Width of this element. | |
| 94 | * @param stage | |
| 95 | * {@link LayoutStage} to get this information for (either | |
| 96 | * {@link LayoutStage#STAGE1} or {@link LayoutStage#STAGE2}) | |
| 97 | */ | |
| 98 | float getWidth(LayoutStage stage); | |
| 99 | ||
| 100 | /** | |
| 101 | * Retrieve the X-position of the horizontal center of the content. In | |
| 102 | * most cases, this will be width / 2. This does not, however, take extra | |
| 103 | * borders into account. An element may have different border width on | |
| 104 | * left and right, in which case the center will be moved. | |
| 105 | * | |
| 106 | * @return X-position of the center of the content | |
| 107 | * @param stage | |
| 108 | * {@link LayoutStage} to get this information for (either | |
| 109 | * {@link LayoutStage#STAGE1} or {@link LayoutStage#STAGE2}) | |
| 110 | */ | |
| 111 | float getHorizontalCenterOffset(LayoutStage stage); | |
| 112 | ||
| 113 | /** | |
| 114 | * @param newOffset | |
| 115 | * new horizontal offset. | |
| 116 | * @param stage | |
| 117 | * {@link LayoutStage} to get this information for (either | |
| 118 | * {@link LayoutStage#STAGE1} or {@link LayoutStage#STAGE2}) | |
| 119 | */ | |
| 120 | void setHorizontalCenterOffset(float newOffset, LayoutStage stage); | |
| 121 | ||
| 122 | /** | |
| 123 | * Retrieve the X position of this element relative to its parent. | |
| 124 | * | |
| 125 | * @return X position | |
| 126 | * @param stage | |
| 127 | * {@link LayoutStage} to get this information for (either | |
| 128 | * {@link LayoutStage#STAGE1} or {@link LayoutStage#STAGE2}) | |
| 129 | */ | |
| 130 | float getPosX(LayoutStage stage); | |
| 131 | ||
| 132 | /** | |
| 133 | * Retrieve the Y position of this element relative to its parent. | |
| 134 | * | |
| 135 | * @return Y position | |
| 136 | * @param stage | |
| 137 | * {@link LayoutStage} to get this information for (either | |
| 138 | * {@link LayoutStage#STAGE1} or {@link LayoutStage#STAGE2}) | |
| 139 | */ | |
| 140 | float getPosY(LayoutStage stage); | |
| 141 | ||
| 142 | /** | |
| 143 | * Move this element to the given position relative to its parent. | |
| 144 | * | |
| 145 | * @param x | |
| 146 | * new X position | |
| 147 | * @param y | |
| 148 | * new Y position | |
| 149 | * @param stage | |
| 150 | * {@link LayoutStage} to get this information for (either | |
| 151 | * {@link LayoutStage#STAGE1} or {@link LayoutStage#STAGE2}) | |
| 152 | */ | |
| 153 | void moveTo(float x, float y, LayoutStage stage); | |
| 154 | ||
| 155 | /** | |
| 156 | * Shift vertically by given offset. | |
| 157 | * | |
| 158 | * @param offsetY | |
| 159 | * offset to shift. | |
| 160 | * @param stage | |
| 161 | * Stage to manipulate. | |
| 162 | */ | |
| 163 | void shiftVertically(float offsetY, LayoutStage stage); | |
| 164 | ||
| 165 | /** | |
| 166 | * @param ascentHeight | |
| 167 | * new ascentHeight. | |
| 168 | * @param stage | |
| 169 | * {@link LayoutStage} to get this information for (either | |
| 170 | * {@link LayoutStage#STAGE1} or {@link LayoutStage#STAGE2}) | |
| 171 | */ | |
| 172 | void setAscentHeight(float ascentHeight, LayoutStage stage); | |
| 173 | ||
| 174 | /** | |
| 175 | * @param descentHeight | |
| 176 | * new descentHeight. | |
| 177 | * @param stage | |
| 178 | * {@link LayoutStage} to get this information for (either | |
| 179 | * {@link LayoutStage#STAGE1} or {@link LayoutStage#STAGE2}) | |
| 180 | */ | |
| 181 | void setDescentHeight(float descentHeight, LayoutStage stage); | |
| 182 | ||
| 183 | /** | |
| 184 | * @param width | |
| 185 | * new width. | |
| 186 | * @param stage | |
| 187 | * {@link LayoutStage} to get this information for (either | |
| 188 | * {@link LayoutStage#STAGE1} or {@link LayoutStage#STAGE2}) | |
| 189 | */ | |
| 190 | void setWidth(float width, LayoutStage stage); | |
| 191 | ||
| 192 | /** | |
| 193 | * Set the stretch width for children, or < 0 if children should be | |
| 194 | * horizontally unstretched. | |
| 195 | * | |
| 196 | * @param stretchWidth | |
| 197 | * new stretch width | |
| 198 | */ | |
| 199 | void setStretchWidth(float stretchWidth); | |
| 200 | ||
| 201 | /** | |
| 202 | * Retrieve the stretch width if set, or STAGE1.width if unset. | |
| 203 | * | |
| 204 | * @return stretch width. | |
| 205 | */ | |
| 206 | float getStretchWidth(); | |
| 207 | ||
| 208 | /** | |
| 209 | * Set the stretch descent for children. Defaults to STAGE1.descent | |
| 210 | * | |
| 211 | * @param stretchDescent | |
| 212 | * new stretch descent | |
| 213 | */ | |
| 214 | void setStretchDescent(float stretchDescent); | |
| 215 | ||
| 216 | /** | |
| 217 | * Retrieve the stretch descent if set, or STAGE1.descent if unset. | |
| 218 | * | |
| 219 | * @return stretch descent. | |
| 220 | */ | |
| 221 | float getStretchDescent(); | |
| 222 | ||
| 223 | /** | |
| 224 | * Set the stretch ascent for children. Defaults to STAGE1.ascent | |
| 225 | * | |
| 226 | * @param stretchAscent | |
| 227 | * new stretch ascent | |
| 228 | */ | |
| 229 | void setStretchAscent(float stretchAscent); | |
| 230 | ||
| 231 | /** | |
| 232 | * Retrieve the stretch ascent if set, or STAGE1.ascent if unset. | |
| 233 | * | |
| 234 | * @return stretch ascent. | |
| 235 | */ | |
| 236 | float getStretchAscent(); | |
| 237 | ||
| 238 | /** | |
| 239 | * @param graphicsObject | |
| 240 | * the GraphicsObject to set. | |
| 241 | */ | |
| 242 | void setGraphicsObject(GraphicsObject graphicsObject); | |
| 243 | ||
| 244 | /** | |
| 245 | * @return Graphic objects associated with this node. | |
| 246 | */ | |
| 247 | List<GraphicsObject> getGraphicObjects(); | |
| 248 | } |