Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/exports/XYChartGenerator.java @ 2048:3157a78e6494
Improved chart title and subtitle creation in ChartGenerators - all ChartGenerators make now use of title and subtitle provided by ChartSettings.
flys-artifacts/trunk@3538 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Fri, 23 Dec 2011 14:24:57 +0000 |
| parents | 0318fa6f0844 |
| children | 2d5f2bc68cc6 |
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| 2047:0318fa6f0844 | 2048:3157a78e6494 |
|---|---|
| 182 datasets = new TreeMap<Integer, AxisDataset>(); | 182 datasets = new TreeMap<Integer, AxisDataset>(); |
| 183 } | 183 } |
| 184 | 184 |
| 185 | 185 |
| 186 /** | 186 /** |
| 187 * Returns the title of a chart. | 187 * Returns the title of a chart. The return value depends on the existence |
| 188 * of ChartSettings: if there are ChartSettings set, this method returns the | |
| 189 * chart title provided by those settings. Otherwise, this method returns | |
| 190 * getDefaultChartTitle(). | |
| 188 * | 191 * |
| 189 * @return the title of a chart. | 192 * @return the title of a chart. |
| 190 */ | 193 */ |
| 191 protected abstract String getChartTitle(); | 194 protected String getChartTitle() { |
| 192 | 195 ChartSettings chartSettings = getChartSettings(); |
| 193 | 196 |
| 194 /** | 197 if (chartSettings != null) { |
| 195 * This method always returns null. If a concrete subclass of this class | 198 return getChartTitle(chartSettings); |
| 196 * requires a chart subtitle, this subclass can easily override this method. | 199 } |
| 197 * | 200 |
| 198 * @return always null. | 201 return getDefaultChartTitle(); |
| 202 } | |
| 203 | |
| 204 | |
| 205 protected abstract String getDefaultChartTitle(); | |
| 206 | |
| 207 | |
| 208 /** | |
| 209 * Returns the subtitle of a chart. The return value depends on the | |
| 210 * existence of ChartSettings: if there are ChartSettings set, this method | |
| 211 * returns the chart title provided by those settings. Otherwise, this | |
| 212 * method returns getDefaultChartSubtitle(). | |
| 213 * | |
| 214 * @return the subtitle of a chart. | |
| 199 */ | 215 */ |
| 200 protected String getChartSubtitle() { | 216 protected String getChartSubtitle() { |
| 201 // overridden this method in subclasses that need subtitles | 217 ChartSettings chartSettings = getChartSettings(); |
| 218 | |
| 219 if (chartSettings != null) { | |
| 220 return getChartSubtitle(chartSettings); | |
| 221 } | |
| 222 | |
| 223 return getDefaultChartSubtitle(); | |
| 224 } | |
| 225 | |
| 226 | |
| 227 /** | |
| 228 * This method always returns null. Override it in subclasses that require | |
| 229 * subtitles. | |
| 230 * | |
| 231 * @return null. | |
| 232 */ | |
| 233 protected String getDefaultChartSubtitle() { | |
| 234 // Override this method in subclasses | |
| 202 return null; | 235 return null; |
| 203 } | 236 } |
| 204 | 237 |
| 205 | 238 |
| 206 /** | 239 /** |