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00007 #include <math.h>
00008 #include <fstream>
00009
00010 #include "ChartsExample.h"
00011 #include "ChartConfig.h"
00012 #include "CsvUtil.h"
00013
00014 #include <Wt/WApplication>
00015 #include <Wt/WDate>
00016 #include <Wt/WEnvironment>
00017 #include <Wt/WItemDelegate>
00018 #include <Wt/WStandardItemModel>
00019 #include <Wt/WText>
00020
00021 #include <Wt/WBorderLayout>
00022 #include <Wt/WFitLayout>
00023
00024 #include <Wt/WStandardItem>
00025 #include <Wt/WTableView>
00026
00027 #include <Wt/Chart/WCartesianChart>
00028 #include <Wt/Chart/WPieChart>
00029
00030 using namespace Wt;
00031 using namespace Wt::Chart;
00032 namespace {
00033
00034
00035
00036
00037 WAbstractItemModel *readCsvFile(const std::string &fname,
00038 WContainerWidget *parent)
00039 {
00040 WStandardItemModel *model = new WStandardItemModel(0, 0, parent);
00041 std::ifstream f(fname.c_str());
00042
00043 if (f) {
00044 readFromCsv(f, model);
00045
00046 for (int row = 0; row < model->rowCount(); ++row)
00047 for (int col = 0; col < model->columnCount(); ++col) {
00048 model->item(row, col)->setFlags(ItemIsSelectable | ItemIsEditable);
00049
00050
00051
00052
00053
00054
00055
00056
00057
00058
00059
00060 }
00061
00062 return model;
00063 } else {
00064 WString error(WString::tr("error-missing-data"));
00065 error.arg(fname, UTF8);
00066 new WText(error, parent);
00067 return 0;
00068 }
00069 }
00070 }
00071
00072 ChartsExample::ChartsExample(WContainerWidget *root)
00073 : WContainerWidget(root)
00074 {
00075 new WText(WString::tr("introduction"), this);
00076
00077 new CategoryExample(this);
00078 new TimeSeriesExample(this);
00079 new ScatterPlotExample(this);
00080 new PieExample(this);
00081 }
00082
00083 CategoryExample::CategoryExample(Wt::WContainerWidget *parent):
00084 WContainerWidget(parent)
00085 {
00086 new WText(WString::tr("category chart"), this);
00087
00088 WAbstractItemModel *model
00089 = readCsvFile(WApplication::appRoot() + "category.csv", this);
00090
00091 if (!model)
00092 return;
00093
00094
00095 WContainerWidget *w = new WContainerWidget(this);
00096 WTableView *table = new WTableView(w);
00097
00098 table->setMargin(10, Top | Bottom);
00099 table->setMargin(WLength::Auto, Left | Right);
00100
00101 table->setModel(model);
00102 table->setSortingEnabled(true);
00103 table->setColumnResizeEnabled(true);
00104
00105 table->setAlternatingRowColors(true);
00106 table->setColumnAlignment(0, AlignCenter);
00107 table->setHeaderAlignment(0, AlignCenter);
00108 table->setRowHeight(22);
00109
00110
00111
00112 if (WApplication::instance()->environment().ajax()) {
00113 table->resize(600, 20 + 5*22);
00114 table->setEditTriggers(WAbstractItemView::SingleClicked);
00115 } else {
00116 table->resize(600, WLength::Auto);
00117 table->setEditTriggers(WAbstractItemView::NoEditTrigger);
00118 }
00119
00120
00121
00122 WItemDelegate *delegate = new WItemDelegate(this);
00123 delegate->setTextFormat("%.f");
00124 table->setItemDelegate(delegate);
00125
00126 table->setColumnWidth(0, 80);
00127 for (int i = 1; i < model->columnCount(); ++i)
00128 table->setColumnWidth(i, 120);
00129
00130
00131
00132
00133 WCartesianChart *chart = new WCartesianChart(this);
00134
00135 chart->setModel(model);
00136 chart->setXSeriesColumn(0);
00137 chart->setLegendEnabled(true);
00138
00139
00140 chart->setPlotAreaPadding(80, Left);
00141 chart->setPlotAreaPadding(40, Top | Bottom);
00142
00143
00144
00145
00146 for (int i = 1; i < model->columnCount(); ++i) {
00147 WDataSeries s(i, BarSeries);
00148 s.setShadow(WShadow(3, 3, WColor(0, 0, 0, 127), 3));
00149 chart->addSeries(s);
00150 }
00151
00152 chart->resize(800, 400);
00153
00154 chart->setMargin(10, Top | Bottom);
00155 chart->setMargin(WLength::Auto, Left | Right);
00156
00157
00158
00159
00160 new ChartConfig(chart, this);
00161 }
00162
00163 TimeSeriesExample::TimeSeriesExample(Wt::WContainerWidget *parent):
00164 WContainerWidget(parent)
00165 {
00166 new WText(WString::tr("scatter plot"), this);
00167
00168 WAbstractItemModel *model = readCsvFile(
00169 WApplication::appRoot() + "timeseries.csv", this);
00170
00171 if (!model)
00172 return;
00173
00174
00175
00176
00177 for (int i = 0; i < model->rowCount(); ++i) {
00178 WString s = asString(model->data(i, 0));
00179 WDate d = WDate::fromString(s, "dd/MM/yy");
00180 model->setData(i, 0, d);
00181 }
00182
00183
00184 WContainerWidget *w = new WContainerWidget(this);
00185 WTableView *table = new WTableView(w);
00186
00187 table->setMargin(10, Top | Bottom);
00188 table->setMargin(WLength::Auto, Left | Right);
00189
00190 table->setModel(model);
00191 table->setSortingEnabled(false);
00192 table->setColumnResizeEnabled(true);
00193 table->setSelectionMode(NoSelection);
00194 table->setAlternatingRowColors(true);
00195 table->setColumnAlignment(0, AlignCenter);
00196 table->setHeaderAlignment(0, AlignCenter);
00197 table->setRowHeight(22);
00198
00199
00200
00201 if (WApplication::instance()->environment().ajax()) {
00202 table->resize(800, 20 + 5*22);
00203 table->setEditTriggers(WAbstractItemView::SingleClicked);
00204 } else {
00205 table->resize(800, 20 + 5*22 + 25);
00206 table->setEditTriggers(WAbstractItemView::NoEditTrigger);
00207 }
00208
00209 WItemDelegate *delegate = new WItemDelegate(this);
00210 delegate->setTextFormat("%.1f");
00211 table->setItemDelegate(delegate);
00212 table->setItemDelegateForColumn(0, new WItemDelegate(this));
00213
00214 table->setColumnWidth(0, 80);
00215 for (int i = 1; i < model->columnCount(); ++i)
00216 table->setColumnWidth(i, 90);
00217
00218
00219
00220
00221 WCartesianChart *chart = new WCartesianChart(this);
00222
00223
00224 chart->setModel(model);
00225 chart->setXSeriesColumn(0);
00226 chart->setLegendEnabled(true);
00227
00228 chart->setType(ScatterPlot);
00229 chart->axis(XAxis).setScale(DateScale);
00230
00231
00232 chart->setPlotAreaPadding(80, Left);
00233 chart->setPlotAreaPadding(40, Top | Bottom);
00234
00235
00236
00237
00238 for (int i = 1; i < 3; ++i) {
00239 WDataSeries s(i, LineSeries);
00240 s.setShadow(WShadow(3, 3, WColor(0, 0, 0, 127), 3));
00241 chart->addSeries(s);
00242 }
00243
00244 chart->resize(800, 400);
00245
00246 chart->setMargin(10, Top | Bottom);
00247 chart->setMargin(WLength::Auto, Left | Right);
00248
00249 new ChartConfig(chart, this);
00250 }
00251
00252 ScatterPlotExample::ScatterPlotExample(WContainerWidget *parent):
00253 WContainerWidget(parent)
00254 {
00255 new WText(WString::tr("scatter plot 2"), this);
00256
00257 WStandardItemModel *model = new WStandardItemModel(40, 2, this);
00258 model->setHeaderData(0, WString("X"));
00259 model->setHeaderData(1, WString("Y = sin(X)"));
00260
00261 for (unsigned i = 0; i < 40; ++i) {
00262 double x = (static_cast<double>(i) - 20) / 4;
00263
00264 model->setData(i, 0, x);
00265 model->setData(i, 1, sin(x));
00266 }
00267
00268
00269
00270
00271 WCartesianChart *chart = new WCartesianChart(this);
00272 chart->setModel(model);
00273 chart->setXSeriesColumn(0);
00274 chart->setLegendEnabled(true);
00275
00276 chart->setType(ScatterPlot);
00277
00278
00279
00280 chart->axis(XAxis).setLocation(ZeroValue);
00281 chart->axis(YAxis).setLocation(ZeroValue);
00282
00283
00284 chart->setPlotAreaPadding(80, Left);
00285 chart->setPlotAreaPadding(40, Top | Bottom);
00286
00287
00288 WDataSeries s(1, CurveSeries);
00289 s.setShadow(WShadow(3, 3, WColor(0, 0, 0, 127), 3));
00290 chart->addSeries(s);
00291
00292 chart->resize(800, 300);
00293
00294 chart->setMargin(10, Top | Bottom);
00295 chart->setMargin(WLength::Auto, Left | Right);
00296
00297 ChartConfig *config = new ChartConfig(chart, this);
00298 config->setValueFill(ZeroValueFill);
00299 }
00300
00301 PieExample::PieExample(WContainerWidget *parent):
00302 WContainerWidget(parent)
00303 {
00304 new WText(WString::tr("pie chart"), this);
00305
00306 WStandardItemModel *model = new WStandardItemModel(this);
00307
00308
00309 model->insertColumns(model->columnCount(), 2);
00310 model->setHeaderData(0, WString("Item"));
00311 model->setHeaderData(1, WString("Sales"));
00312
00313
00314 model->insertRows(model->rowCount(), 6);
00315 int row = 0;
00316 model->setData(row, 0, WString("Blueberry"));
00317 model->setData(row, 1, 120);
00318
00319 row++;
00320 model->setData(row, 0, WString("Cherry"));
00321 model->setData(row, 1, 30);
00322 row++;
00323 model->setData(row, 0, WString("Apple"));
00324 model->setData(row, 1, 260);
00325 row++;
00326 model->setData(row, 0, WString("Boston Cream"));
00327 model->setData(row, 1, 160);
00328 row++;
00329 model->setData(row, 0, WString("Other"));
00330 model->setData(row, 1, 40);
00331 row++;
00332 model->setData(row, 0, WString("Vanilla Cream"));
00333 model->setData(row, 1, 120);
00334 row++;
00335
00336
00337 for (int row = 0; row < model->rowCount(); ++row)
00338 for (int col = 0; col < model->columnCount(); ++col)
00339 model->item(row, col)->setFlags(ItemIsSelectable | ItemIsEditable);
00340
00341 WContainerWidget *w = new WContainerWidget(this);
00342 WTableView* table = new WTableView(w);
00343
00344 table->setMargin(10, Top | Bottom);
00345 table->setMargin(WLength::Auto, Left | Right);
00346 table->setSortingEnabled(true);
00347 table->setModel(model);
00348 table->setColumnWidth(1, 100);
00349 table->setRowHeight(22);
00350
00351 if (WApplication::instance()->environment().ajax()) {
00352 table->resize(150 + 100 + 14, 20 + 6 * 22);
00353 table->setEditTriggers(WAbstractItemView::SingleClicked);
00354 } else {
00355 table->resize(150 + 100 + 14, WLength::Auto);
00356 table->setEditTriggers(WAbstractItemView::NoEditTrigger);
00357 }
00358
00359
00360
00361
00362 WPieChart *chart = new WPieChart(this);
00363 chart->setModel(model);
00364 chart->setLabelsColumn(0);
00365 chart->setDataColumn(1);
00366
00367
00368 chart->setDisplayLabels(Outside | TextLabel | TextPercentage);
00369
00370
00371 chart->setPerspectiveEnabled(true, 0.2);
00372 chart->setShadowEnabled(true);
00373
00374
00375 chart->setExplode(0, 0.3);
00376
00377 chart->resize(800, 300);
00378
00379 chart->setMargin(10, Top | Bottom);
00380 chart->setMargin(WLength::Auto, Left | Right);
00381 }
00382