--- /dev/null
+/*
+ * Jexer - Java Text User Interface
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (C) 2019 David "Niki" ROULET
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * @author David ROULET [niki@nikiroo.be]
+ * @version 1
+ */
+package be.nikiroo.jexer;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import javax.swing.table.TableModel;
+
+import be.nikiroo.jexer.TTableCellRenderer.CellRendererMode;
+import jexer.TAction;
+import jexer.TWidget;
+import jexer.bits.CellAttributes;
+
+/**
+ * A table widget to display and browse through tabular data.
+ * <p>
+ * Currently, you can only select a line (a row) at a time, but the data you
+ * present is still tabular. You also access the data in a tabular way (by
+ * <tt>(raw,column)</tt>).
+ *
+ * @author niki
+ */
+public class TTable extends TBrowsableWidget {
+ // Default renderers use text mode
+ static private TTableCellRenderer defaultSeparatorRenderer = new TTableCellRendererText(
+ CellRendererMode.SEPARATOR);
+ static private TTableCellRenderer defaultHeaderRenderer = new TTableCellRendererText(
+ CellRendererMode.HEADER);
+ static private TTableCellRenderer defaultHeaderSeparatorRenderer = new TTableCellRendererText(
+ CellRendererMode.HEADER_SEPARATOR);
+
+ private boolean showHeader;
+
+ private List<TTableColumn> columns = new ArrayList<TTableColumn>();
+ private TableModel model;
+
+ private int selectedColumn;
+
+ private TTableCellRenderer separatorRenderer;
+ private TTableCellRenderer headerRenderer;
+ private TTableCellRenderer headerSeparatorRenderer;
+
+ /**
+ * The action to perform when the user selects an item (clicks or enter).
+ */
+ private TAction enterAction = null;
+
+ /**
+ * The action to perform when the user navigates with keyboard.
+ */
+ private TAction moveAction = null;
+
+ /**
+ * Create a new {@link TTable}.
+ *
+ * @param parent
+ * the parent widget
+ * @param x
+ * the X position
+ * @param y
+ * the Y position
+ * @param width
+ * the width of the {@link TTable}
+ * @param height
+ * the height of the {@link TTable}
+ * @param enterAction
+ * an action to call when a cell is selected
+ * @param moveAction
+ * an action to call when the currently active cell is changed
+ */
+ public TTable(TWidget parent, int x, int y, int width, int height,
+ final TAction enterAction, final TAction moveAction) {
+ this(parent, x, y, width, height, enterAction, moveAction, null, false);
+ }
+
+ /**
+ * Create a new {@link TTable}.
+ *
+ * @param parent
+ * the parent widget
+ * @param x
+ * the X position
+ * @param y
+ * the Y position
+ * @param width
+ * the width of the {@link TTable}
+ * @param height
+ * the height of the {@link TTable}
+ * @param enterAction
+ * an action to call when a cell is selected
+ * @param moveAction
+ * an action to call when the currently active cell is changed
+ * @param headers
+ * the headers of the {@link TTable}
+ * @param showHeaders
+ * TRUE to show the headers on screen
+ */
+ public TTable(TWidget parent, int x, int y, int width, int height,
+ final TAction enterAction, final TAction moveAction,
+ List<? extends Object> headers, boolean showHeaders) {
+ super(parent, x, y, width, height);
+
+ this.model = new TTableModel(new Object[][] {});
+ setSelectedRow(-1);
+ this.selectedColumn = -1;
+
+ setHeaders(headers, showHeaders);
+
+ this.enterAction = enterAction;
+ this.moveAction = moveAction;
+
+ reflowData();
+ }
+
+ /**
+ * The data model (containing the actual data) used by this {@link TTable},
+ * as with the usual Swing tables.
+ *
+ * @return the model
+ */
+ public TableModel getModel() {
+ return model;
+ }
+
+ /**
+ * The data model (containing the actual data) used by this {@link TTable},
+ * as with the usual Swing tables.
+ * <p>
+ * Will reset all the rendering cells.
+ *
+ * @param model
+ * the new model
+ */
+ public void setModel(TableModel model) {
+ this.model = model;
+ reflowData();
+ }
+
+ /**
+ * The columns used by this {@link TTable} (you need to access them if you
+ * want to change the way they are rendered, for instance, or their size).
+ *
+ * @return the columns
+ */
+ public List<TTableColumn> getColumns() {
+ return columns;
+ }
+
+ /**
+ * The {@link TTableCellRenderer} used by the separators (one separator
+ * between two data columns).
+ *
+ * @return the renderer, or the default one if none is set (never NULL)
+ */
+ public TTableCellRenderer getSeparatorRenderer() {
+ return separatorRenderer != null ? separatorRenderer
+ : defaultSeparatorRenderer;
+ }
+
+ /**
+ * The {@link TTableCellRenderer} used by the separators (one separator
+ * between two data columns).
+ *
+ * @param separatorRenderer
+ * the new renderer, or NULL to use the default renderer
+ */
+ public void setSeparatorRenderer(TTableCellRenderer separatorRenderer) {
+ this.separatorRenderer = separatorRenderer;
+ }
+
+ /**
+ * The {@link TTableCellRenderer} used by the headers (if
+ * {@link TTable#isShowHeader()} is enabled, the first line represents the
+ * headers with the column names).
+ *
+ * @return the renderer, or the default one if none is set (never NULL)
+ */
+ public TTableCellRenderer getHeaderRenderer() {
+ return headerRenderer != null ? headerRenderer : defaultHeaderRenderer;
+ }
+
+ /**
+ * The {@link TTableCellRenderer} used by the headers (if
+ * {@link TTable#isShowHeader()} is enabled, the first line represents the
+ * headers with the column names).
+ *
+ * @param headerRenderer
+ * the new renderer, or NULL to use the default renderer
+ */
+ public void setHeaderRenderer(TTableCellRenderer headerRenderer) {
+ this.headerRenderer = headerRenderer;
+ }
+
+ /**
+ * The {@link TTableCellRenderer} to use on separators in header lines (see
+ * the related methods to understand what each of them is).
+ *
+ * @return the renderer, or the default one if none is set (never NULL)
+ */
+ public TTableCellRenderer getHeaderSeparatorRenderer() {
+ return headerSeparatorRenderer != null ? headerSeparatorRenderer
+ : defaultHeaderSeparatorRenderer;
+ }
+
+ /**
+ * The {@link TTableCellRenderer} to use on separators in header lines (see
+ * the related methods to understand what each of them is).
+ *
+ * @param headerSeparatorRenderer
+ * the new renderer, or NULL to use the default renderer
+ */
+ public void setHeaderSeparatorRenderer(
+ TTableCellRenderer headerSeparatorRenderer) {
+ this.headerSeparatorRenderer = headerSeparatorRenderer;
+ }
+
+ /**
+ * Show the header row on this {@link TTable}.
+ *
+ * @return TRUE if we show them
+ */
+ public boolean isShowHeader() {
+ return showHeader;
+ }
+
+ /**
+ * Show the header row on this {@link TTable}.
+ *
+ * @param showHeader
+ * TRUE to show them
+ */
+ public void setShowHeader(boolean showHeader) {
+ this.showHeader = showHeader;
+ setYOffset(showHeader ? 2 : 0);
+ reflowData();
+ }
+
+ /**
+ * Change the headers of the table.
+ * <p>
+ * Note that this method is a convenience method that will create columns of
+ * the corresponding names and set them. As such, the previous columns if
+ * any will be replaced.
+ *
+ * @param headers
+ * the new headers
+ */
+ public void setHeaders(List<? extends Object> headers) {
+ setHeaders(headers, showHeader);
+ }
+
+ /**
+ * Change the headers of the table.
+ * <p>
+ * Note that this method is a convenience method that will create columns of
+ * the corresponding names and set them in the same order. As such, the
+ * previous columns if any will be replaced.
+ *
+ * @param headers
+ * the new headers
+ * @param showHeader
+ * TRUE to show them on screen
+ */
+ public void setHeaders(List<? extends Object> headers, boolean showHeader) {
+ if (headers == null) {
+ headers = new ArrayList<Object>();
+ }
+
+ int i = 0;
+ this.columns = new ArrayList<TTableColumn>();
+ for (Object header : headers) {
+ this.columns.add(new TTableColumn(i++, header, getModel()));
+ }
+
+ setShowHeader(showHeader);
+ }
+
+ /**
+ * Set the data and create a new {@link TTableModel} for them.
+ *
+ * @param data
+ * the data to set into this table, as an array of rows, that is,
+ * an array of arrays of values
+ */
+
+ public void setRowData(Object[][] data) {
+ setRowData(TTableModel.convert(data));
+ }
+
+ /**
+ * Set the data and create a new {@link TTableModel} for them.
+ *
+ * @param data
+ * the data to set into this table, as a collection of rows, that
+ * is, a collection of collections of values
+ */
+ public void setRowData(
+ final Collection<? extends Collection<? extends Object>> data) {
+ setModel(new TTableModel(data));
+ }
+
+ /**
+ * The currently selected cell.
+ *
+ * @return the cell
+ */
+ public Object getSelectedCell() {
+ int selectedRow = getSelectedRow();
+ if (selectedRow >= 0 && selectedColumn >= 0) {
+ return model.getValueAt(selectedRow, selectedColumn);
+ }
+
+ return null;
+ }
+
+ @Override
+ public int getRowCount() {
+ if (model == null) {
+ return 0;
+ }
+ return model.getRowCount();
+ }
+
+ @Override
+ public int getColumnCount() {
+ if (model == null) {
+ return 0;
+ }
+ return model.getColumnCount();
+ }
+
+ @Override
+ public void dispatchEnter(int selectedRow) {
+ super.dispatchEnter(selectedRow);
+ if (enterAction != null) {
+ enterAction.DO();
+ }
+ }
+
+ @Override
+ public void dispatchMove(int fromRow, int toRow) {
+ super.dispatchMove(fromRow, toRow);
+ if (moveAction != null) {
+ moveAction.DO();
+ }
+ }
+
+ /**
+ * Clear the content of the {@link TTable}.
+ * <p>
+ * It will not affect the headers.
+ * <p>
+ * You may want to call {@link TTable#reflowData()} when done to see the
+ * changes.
+ */
+ public void clear() {
+ setSelectedRow(-1);
+ selectedColumn = -1;
+ setModel(new TTableModel(new Object[][] {}));
+ }
+
+ @Override
+ public void reflowData() {
+ super.reflowData();
+
+ int lastAutoColumn = -1;
+ int rowWidth = 0;
+
+ int i = 0;
+ for (TTableColumn tcol : columns) {
+ tcol.reflowData();
+
+ if (!tcol.isForcedWidth()) {
+ lastAutoColumn = i;
+ }
+
+ rowWidth += tcol.getWidth();
+
+ i++;
+ }
+
+ if (!columns.isEmpty()) {
+ rowWidth += (i - 1) * getSeparatorRenderer().getWidthOf(null);
+
+ int extraWidth = getWidth() - rowWidth;
+ if (extraWidth > 0) {
+ if (lastAutoColumn < 0) {
+ lastAutoColumn = columns.size() - 1;
+ }
+ TTableColumn tcol = columns.get(lastAutoColumn);
+ tcol.expandWidthTo(tcol.getWidth() + extraWidth);
+ rowWidth += extraWidth;
+ }
+ }
+ }
+
+ @Override
+ public void draw() {
+ int begin = vScroller.getValue();
+ int y = this.showHeader ? 2 : 0;
+
+ if (showHeader) {
+ CellAttributes colorHeaders = getHeaderRenderer()
+ .getCellAttributes(getTheme(), false, isAbsoluteActive());
+ drawRow(-1, 0);
+ String formatString = "%-" + Integer.toString(getWidth()) + "s";
+ String data = String.format(formatString, "");
+ getScreen().putStringXY(0, 1, data, colorHeaders);
+ }
+
+ // draw the actual rows until no more,
+ // then pad the rest with blank rows
+ for (int i = begin; i < getRowCount(); i++) {
+ drawRow(i, y);
+ y++;
+
+ // -2: window borders
+ if (y >= getHeight() - 2 - getHorizontalScroller().getHeight()) {
+ break;
+ }
+ }
+
+ CellAttributes emptyRowColor = getSeparatorRenderer()
+ .getCellAttributes(getTheme(), false, isAbsoluteActive());
+ for (int i = getRowCount(); i < getHeight(); i++) {
+ getScreen().hLineXY(0, y, getWidth() - 1, ' ', emptyRowColor);
+ y++;
+ }
+ }
+
+ @Override
+ protected int getVirtualWidth() {
+ int width = 0;
+
+ if (getColumns() != null) {
+ for (TTableColumn tcol : getColumns()) {
+ width += tcol.getWidth();
+ }
+
+ if (getColumnCount() > 0) {
+ width += (getColumnCount() - 1)
+ * getSeparatorRenderer().getWidthOf(null);
+ }
+ }
+
+ return width;
+ }
+
+ @Override
+ protected int getVirtualHeight() {
+ // TODO: allow changing the height of one row
+ return (showHeader ? 2 : 0) + (getRowCount() * 1);
+ }
+
+ /**
+ * Draw the given row (it <b>MUST</b> exist) at the specified index and
+ * offset.
+ *
+ * @param rowIndex
+ * the index of the row to draw or -1 for the headers
+ * @param y
+ * the Y position
+ */
+ private void drawRow(int rowIndex, int y) {
+ for (int i = 0; i < getColumnCount(); i++) {
+ TTableColumn tcol = columns.get(i);
+ Object value;
+ if (rowIndex < 0) {
+ value = tcol.getHeaderValue();
+ } else {
+ value = model.getValueAt(rowIndex, tcol.getModelIndex());
+ }
+
+ if (i > 0) {
+ TTableCellRenderer sep = rowIndex < 0 ? getHeaderSeparatorRenderer()
+ : getSeparatorRenderer();
+ sep.renderTableCell(this, null, rowIndex, i - 1, y);
+ }
+
+ if (rowIndex < 0) {
+ getHeaderRenderer()
+ .renderTableCell(this, value, rowIndex, i, y);
+ } else {
+ tcol.getRenderer().renderTableCell(this, value, rowIndex, i, y);
+ }
+ }
+ }
+}
git://git.nikiroo.be / fanfix.git / blobdiff