Java tutorial
/* * Copyright 2014 Red Hat, Inc. and/or its affiliates. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.dashbuilder.renderer.google.client; import com.google.gwt.dom.client.Style; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.user.client.Event; import com.google.gwt.user.client.ui.FlowPanel; import com.google.gwt.user.client.ui.HasVerticalAlignment; import com.google.gwt.user.client.ui.HorizontalPanel; import com.googlecode.gwt.charts.client.event.SortEvent; import com.googlecode.gwt.charts.client.event.SortHandler; import com.googlecode.gwt.charts.client.options.TableSort; import com.googlecode.gwt.charts.client.table.Table; import com.googlecode.gwt.charts.client.table.TableOptions; import org.dashbuilder.renderer.google.client.resources.i18n.GoogleDisplayerConstants; import org.gwtbootstrap3.client.ui.AnchorListItem; import org.gwtbootstrap3.client.ui.Icon; import org.gwtbootstrap3.client.ui.Label; import org.gwtbootstrap3.client.ui.Pagination; import org.gwtbootstrap3.client.ui.Tooltip; import org.gwtbootstrap3.client.ui.constants.IconSize; import org.gwtbootstrap3.client.ui.constants.IconType; import org.gwtbootstrap3.client.ui.constants.PaginationSize; public class GoogleTableDisplayerView extends GoogleDisplayerView<GoogleTableDisplayer> implements GoogleTableDisplayer.View { private Table table; protected int pageSize = 10; protected int width = 500; protected int totalPages = 1; protected int currentPage = 1; protected int totalRows = 0; protected int leftMostPageNumber = 0; protected int rightMostPageNumber = 0; protected boolean pagerEnabled = false; protected boolean totalPagesHintEnabled = false; protected boolean totalRowsHintEnabled = false; @Override public String getGroupsTitle() { return GoogleDisplayerConstants.INSTANCE.common_Rows(); } @Override public String getColumnsTitle() { return GoogleDisplayerConstants.INSTANCE.common_Columns(); } @Override public void createTable() { table = new Table(); } @Override public void setSortEnabled(boolean enabled) { if (enabled) { table.addSortHandler(new SortHandler() { public void onSort(SortEvent sortEvent) { String columnId = getDataTable().getColumnId(sortEvent.getColumn()); getPresenter().sortBy(columnId); } }); } } @Override public void setTotalPagesHintEnabled(boolean enabled) { this.totalPagesHintEnabled = enabled; } @Override public void setTotalRowsHintEnabled(boolean enabled) { this.totalRowsHintEnabled = enabled; } @Override public void setPageSize(int size) { this.pageSize = size; } @Override public void setWidth(int width) { this.width = width; } @Override public void setPagerEnabled(boolean enabled) { this.pagerEnabled = enabled; } @Override public void setCurrentPage(int currentPage) { this.currentPage = currentPage; } @Override public void setTotalRows(int numberOfRows) { this.totalRows = numberOfRows; } @Override public void setTotalPages(int numberOfPages) { this.totalPages = numberOfPages; } @Override public void setLeftMostPageNumber(int n) { this.leftMostPageNumber = n; } @Override public void setRightMostPageNumber(int n) { this.rightMostPageNumber = n; } @Override public void nodata() { table.draw(getDataTable(), createOptions()); FlowPanel tablePanel = new FlowPanel(); tablePanel.add(table); tablePanel.add(new Label(GoogleDisplayerConstants.INSTANCE.common_noData())); super.showDisplayer(tablePanel); } @Override public void drawTable() { table.draw(getDataTable(), createOptions()); FlowPanel tablePanel = new FlowPanel(); tablePanel.add(table); if (pagerEnabled) { HorizontalPanel pager = createTablePager(); tablePanel.add(pager); } super.showDisplayer(tablePanel); } protected TableOptions createOptions() { TableOptions options = TableOptions.create(); options.setSort(TableSort.EVENT); options.setPageSize(pageSize); options.setShowRowNumber(false); options.setWidth(width); return options; } protected HorizontalPanel createTablePager() { HorizontalPanel pagerPanel = new HorizontalPanel(); pagerPanel.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE); pagerPanel.getElement().setAttribute("cellpadding", "5"); Pagination pagination = new Pagination(); pagination.setPaginationSize(PaginationSize.NONE); for (int i = leftMostPageNumber; i <= rightMostPageNumber; i++) { AnchorListItem pageLink = new AnchorListItem(Integer.toString(i)); final Integer _currentPage = i; if (currentPage != i) { pageLink.setActive(false); pageLink.addClickHandler(new ClickHandler() { public void onClick(ClickEvent event) { getPresenter().gotoPage(_currentPage.intValue()); } }); } else { pageLink.setActive(true); } pagination.add(pageLink); } Icon leftPageIcon = new Icon(IconType.ANGLE_LEFT); leftPageIcon.setSize(IconSize.LARGE); leftPageIcon.getElement().getStyle().setCursor(Style.Cursor.POINTER); leftPageIcon.sinkEvents(Event.ONCLICK); leftPageIcon.addHandler(createGotoPageHandler(currentPage - 1), ClickEvent.getType()); Tooltip leftPageTooltip = new Tooltip( GoogleDisplayerConstants.INSTANCE.googleTableDisplayer_gotoPreviousPage()); leftPageTooltip.add(leftPageIcon); Icon rightPageIcon = new Icon(IconType.ANGLE_RIGHT); rightPageIcon.setSize(IconSize.LARGE); rightPageIcon.getElement().getStyle().setCursor(Style.Cursor.POINTER); rightPageIcon.sinkEvents(Event.ONCLICK); rightPageIcon.addHandler(createGotoPageHandler(currentPage + 1), ClickEvent.getType()); Tooltip rightPageTooltip = new Tooltip( GoogleDisplayerConstants.INSTANCE.googleTableDisplayer_gotoNextPage()); rightPageTooltip.add(rightPageIcon); Icon firstPageIcon = new Icon(IconType.ANGLE_DOUBLE_LEFT); firstPageIcon.setSize(IconSize.LARGE); firstPageIcon.getElement().getStyle().setCursor(Style.Cursor.POINTER); firstPageIcon.sinkEvents(Event.ONCLICK); firstPageIcon.addHandler(createGotoPageHandler(1), ClickEvent.getType()); Tooltip firstPageTooltip = new Tooltip( GoogleDisplayerConstants.INSTANCE.googleTableDisplayer_gotoFirstPage()); firstPageTooltip.add(firstPageIcon); Icon lastPageIcon = new Icon(IconType.ANGLE_DOUBLE_RIGHT); lastPageIcon.setSize(IconSize.LARGE); lastPageIcon.getElement().getStyle().setCursor(Style.Cursor.POINTER); lastPageIcon.sinkEvents(Event.ONCLICK); lastPageIcon.addHandler(createGotoPageHandler(totalPages), ClickEvent.getType()); Tooltip lastPageTooltip = new Tooltip( GoogleDisplayerConstants.INSTANCE.googleTableDisplayer_gotoLastPage()); lastPageTooltip.add(lastPageIcon); pagerPanel.add(firstPageTooltip); pagerPanel.add(leftPageTooltip); pagerPanel.add(pagination); pagerPanel.add(rightPageTooltip); pagerPanel.add(lastPageTooltip); if (totalPagesHintEnabled) { pagerPanel.add(new Label(GoogleDisplayerConstants.INSTANCE.googleTableDisplayer_pages( Integer.toString(leftMostPageNumber), Integer.toString(rightMostPageNumber), Integer.toString(totalPages)))); } if (totalRowsHintEnabled) { int currentRowsShown = currentPage * pageSize > totalRows ? totalRows : currentPage * pageSize; pagerPanel.add(new Label(GoogleDisplayerConstants.INSTANCE.googleTableDisplayer_rows( Integer.toString(((currentPage - 1) * pageSize) + 1), Integer.toString(currentRowsShown), Integer.toString(totalRows)))); } return pagerPanel; } protected ClickHandler createGotoPageHandler(final int page) { return new ClickHandler() { public void onClick(ClickEvent event) { getPresenter().gotoPage(page); } }; } }