X-Git-Url: http://git.nikiroo.be/?p=fanfix.git;a=blobdiff_plain;f=src%2Fbe%2Fnikiroo%2Fjexer%2FTTableCellRendererWidget.java;fp=src%2Fbe%2Fnikiroo%2Fjexer%2FTTableCellRendererWidget.java;h=22c6f47a9b54e205a349ef9f5a741d3135fd8481;hp=0000000000000000000000000000000000000000;hb=8f34a7954f96acdd5d7be5ed6f08fea2713f7d75;hpb=4162793727db52a12e0efeaca48ac5dbdcb57bdf

diff --git a/src/be/nikiroo/jexer/TTableCellRendererWidget.java b/src/be/nikiroo/jexer/TTableCellRendererWidget.java
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+/*
+ * 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.HashMap;
+import java.util.Map;
+
+import jexer.TLabel;
+import jexer.TWidget;
+
+/**
+ * A simple {@link TTableCellRenderer} that display the values within a
+ * {@link TLabel}.
+ * <p>
+ * It supports a few different modes, see
+ * {@link TTableSimpleTextCellRenderer.CellRendererMode}.
+ * 
+ * @author niki
+ */
+public class TTableCellRendererWidget extends TTableCellRenderer {
+	private boolean rightAlign;
+	private Map<String, TWidget> widgets = new HashMap<String, TWidget>();
+
+	/**
+	 * Create a new renderer for normal text mode.
+	 */
+	public TTableCellRendererWidget() {
+		this(CellRendererMode.NORMAL);
+	}
+
+	/**
+	 * Create a new renderer of the given mode.
+	 * 
+	 * @param mode
+	 *            the renderer mode
+	 */
+	public TTableCellRendererWidget(CellRendererMode mode) {
+		this(mode, false);
+	}
+
+	/**
+	 * Create a new renderer of the given mode.
+	 * 
+	 * @param mode
+	 *            the renderer mode, cannot be NULL
+	 */
+	public TTableCellRendererWidget(CellRendererMode mode, boolean rightAlign) {
+		super(mode);
+
+		this.rightAlign = rightAlign;
+	}
+
+	@Override
+	public void renderTableCell(TTable table, Object value, int rowIndex,
+			int colIndex, int y) {
+
+		String wkey = "[Row " + y + " " + getMode() + "]";
+		TWidget widget = widgets.get(wkey);
+
+		TTableColumn tcol = table.getColumns().get(colIndex);
+		boolean isSelected = table.getSelectedRow() == rowIndex;
+		boolean hasFocus = table.isAbsoluteActive();
+		int width = tcol.getWidth();
+
+		int xOffset = getXOffset(table, colIndex);
+
+		if (widget != null
+				&& !updateTableCellRendererComponent(widget, value, isSelected,
+						hasFocus, y, xOffset, width)) {
+			table.removeChild(widget);
+			widget = null;
+		}
+
+		if (widget == null) {
+			widget = getTableCellRendererComponent(table, value, isSelected,
+					hasFocus, y, xOffset, width);
+		}
+
+		widgets.put(wkey, widget);
+	}
+
+	/**
+	 * Create a new {@link TWidget} to represent the given value.
+	 * 
+	 * @param table
+	 *            the parent {@link TTable}
+	 * @param value
+	 *            the value to represent
+	 * @param isSelected
+	 *            TRUE if selected
+	 * @param hasFocus
+	 *            TRUE if focused
+	 * @param row
+	 *            the row to draw it at
+	 * @param column
+	 *            the column to draw it at
+	 * @param width
+	 *            the width of the control
+	 * 
+	 * @return the widget
+	 */
+	protected TWidget getTableCellRendererComponent(TTable table, Object value,
+			boolean isSelected, boolean hasFocus, int row, int column, int width) {
+		return new TLabel(table, asText(value, width, rightAlign), column, row,
+				getColorKey(isSelected, hasFocus), false);
+	}
+
+	/**
+	 * Update the content of the widget if at all possible.
+	 * 
+	 * @param component
+	 *            the component to update
+	 * @param value
+	 *            the value to represent
+	 * @param isSelected
+	 *            TRUE if selected
+	 * @param hasFocus
+	 *            TRUE if focused
+	 * @param row
+	 *            the row to draw it at
+	 * @param column
+	 *            the column to draw it at
+	 * @param width
+	 *            the width of the control
+	 * 
+	 * @return TRUE if the operation was possible, FALSE if it failed
+	 */
+	protected boolean updateTableCellRendererComponent(TWidget component,
+			Object value, boolean isSelected, boolean hasFocus, int row,
+			int column, int width) {
+
+		if (component instanceof TLabel) {
+			TLabel widget = (TLabel) component;
+			widget.setLabel(asText(value, width, rightAlign));
+			widget.setColorKey(getColorKey(isSelected, hasFocus));
+			widget.setWidth(width);
+			widget.setX(column);
+			widget.setY(row);
+			return true;
+		}
+
+		return false;
+	}
+}