Java tutorial
/** * Copyright 2012-2015 Rafal Lewczuk <rafal.lewczuk@jitlogic.com> * <p/> * This is free software. You can redistribute it and/or modify it under the * terms of the GNU General Public License as published by the Free Software * Foundation, either version 3 of the License, or (at your option) any later * version. * <p/> * This software is distributed in the hope that it will be useful, but WITHOUT ANY * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. * <p/> * You should have received a copy of the GNU General Public License * along with this software. If not, see <http://www.gnu.org/licenses/>. */ package com.jitlogic.zico.client.views.traces; import com.google.gwt.cell.client.Cell; import com.google.gwt.dom.builder.shared.DivBuilder; import com.google.gwt.dom.builder.shared.TableCellBuilder; import com.google.gwt.dom.builder.shared.TableRowBuilder; import com.google.gwt.dom.client.Style; import com.google.gwt.user.cellview.client.AbstractCellTable; import com.google.gwt.user.cellview.client.AbstractCellTableBuilder; import com.google.gwt.user.cellview.client.Column; import com.google.gwt.user.cellview.client.IdentityColumn; import com.google.gwt.user.cellview.client.RowStyles; import com.google.gwt.user.client.ui.HasHorizontalAlignment; import com.google.gwt.user.client.ui.HasVerticalAlignment; import com.google.gwt.view.client.SelectionModel; import com.jitlogic.zico.client.resources.Resources; import com.jitlogic.zico.shared.data.TraceInfo; import java.util.Set; public class TraceSearchTableBuilder extends AbstractCellTableBuilder<TraceInfo> { private final String evenRowStyle; private final String selectedRowStyle; private final String cellStyle; private final String evenCellStyle; private final String firstColumnStyle; private final String lastColumnStyle; private final String selectedCellStyle; private final String extenderCellStyle; private Set<Long> expandedDetails; private Column<TraceInfo, TraceInfo> colDetails; /** * Construct a new table builder. * * @param cellTable the table this builder will build rows for */ public TraceSearchTableBuilder(AbstractCellTable<TraceInfo> cellTable, Set<Long> expandedDetails) { super(cellTable); // Cache styles for faster access. AbstractCellTable.Style style = cellTable.getResources().style(); evenRowStyle = style.evenRow(); selectedRowStyle = " " + style.selectedRow(); cellStyle = style.cell(); evenCellStyle = " " + style.evenRowCell(); firstColumnStyle = " " + style.firstColumn(); lastColumnStyle = " " + style.lastColumn(); selectedCellStyle = " " + style.selectedRowCell(); extenderCellStyle = Resources.INSTANCE.zicoCssResources().methodDetailCell(); this.colDetails = new IdentityColumn<TraceInfo>(new TraceDetailCell()); this.expandedDetails = expandedDetails; } @Override protected void buildRowImpl(TraceInfo rowValue, int absRowIndex) { // Calculate the row styles. SelectionModel<? super TraceInfo> selectionModel = cellTable.getSelectionModel(); boolean isSelected = (selectionModel == null || rowValue == null) ? false : selectionModel.isSelected(rowValue); StringBuilder trClasses = new StringBuilder(evenRowStyle); if (isSelected) { trClasses.append(selectedRowStyle); } // Add custom row styles. RowStyles<TraceInfo> rowStyles = cellTable.getRowStyles(); if (rowStyles != null) { String extraRowStyles = rowStyles.getStyleNames(rowValue, absRowIndex); if (extraRowStyles != null) { trClasses.append(" ").append(extraRowStyles); } } buildStandardRow(rowValue, absRowIndex, isSelected, trClasses.toString()); if (expandedDetails.contains(rowValue.getDataOffs())) { buildDetailRow(rowValue, absRowIndex, isSelected, trClasses.toString()); } } private void buildDetailRow(TraceInfo value, int absRowIndex, boolean isSelected, String trClasses) { TableRowBuilder tr = startRow(); tr.className(trClasses); tr.startTD().endTD(); TableCellBuilder td = tr.startTD().colSpan(cellTable.getColumnCount() - 1); DivBuilder div = td.startDiv().className(extenderCellStyle); //div.style().outlineStyle(Style.OutlineStyle.NONE).endStyle(); this.renderCell(div, createContext(1), colDetails, value); div.endDiv(); td.endTD(); tr.endTR(); } private void buildStandardRow(TraceInfo rowValue, int absRowIndex, boolean isSelected, String trClasses) { //boolean isEven = absRowIndex % 2 == 0; // Build the row. TableRowBuilder tr = startRow(); tr.className(trClasses); // Build the columns. int columnCount = cellTable.getColumnCount(); for (int curColumn = 0; curColumn < columnCount; curColumn++) { Column<TraceInfo, ?> column = cellTable.getColumn(curColumn); // Create the cell styles. StringBuilder tdClasses = new StringBuilder(cellStyle); tdClasses.append(evenCellStyle); if (curColumn == 0) { tdClasses.append(firstColumnStyle); } if (isSelected) { tdClasses.append(selectedCellStyle); } // The first and last column could be the same column. if (curColumn == columnCount - 1) { tdClasses.append(lastColumnStyle); } // Add class names specific to the cell. Cell.Context context = new Cell.Context(absRowIndex, curColumn, cellTable.getValueKey(rowValue)); String cellStyles = column.getCellStyleNames(context, rowValue); if (cellStyles != null) { tdClasses.append(" " + cellStyles); } // Build the cell. HasHorizontalAlignment.HorizontalAlignmentConstant hAlign = column.getHorizontalAlignment(); HasVerticalAlignment.VerticalAlignmentConstant vAlign = column.getVerticalAlignment(); TableCellBuilder td = tr.startTD(); td.className(tdClasses.toString()); if (hAlign != null) { td.align(hAlign.getTextAlignString()); } if (vAlign != null) { td.vAlign(vAlign.getVerticalAlignString()); } // Add the inner div. DivBuilder div = td.startDiv(); div.style().outlineStyle(Style.OutlineStyle.NONE).height(14, Style.Unit.PX).endStyle(); // Render the cell into the div. renderCell(div, context, column, rowValue); // End the cell. div.endDiv(); td.endTD(); } // End the row. tr.endTR(); } }