1 /*
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package hello.dialog.dialogs;
26
27 import java.util.ArrayList;
28 import java.util.Arrays;
29 import java.util.List;
30
31 import com.sun.javafx.scene.control.skin.resources.ControlResources;
32 import hello.HelloAccordion;
33 import javafx.beans.binding.DoubleBinding;
34 import javafx.collections.ListChangeListener;
35 import javafx.event.ActionEvent;
36 import javafx.event.EventHandler;
37 import javafx.geometry.Insets;
38 import javafx.geometry.Pos;
39 import javafx.geometry.VPos;
40 import javafx.scene.Node;
41 import javafx.scene.control.Button;
42 import javafx.scene.control.ButtonBar.ButtonData;
43 import javafx.scene.control.ButtonType;
44 import javafx.scene.control.Dialog;
45 import javafx.scene.control.DialogPane;
46 import javafx.scene.control.Label;
47 import javafx.scene.image.Image;
48 import javafx.scene.image.ImageView;
49 import javafx.scene.layout.GridPane;
50 import javafx.scene.layout.Priority;
51
52 public class CommandLinksDialog extends Dialog<ButtonType> {
53
54 private final static int gapSize = 10;
55
56 private final List<Button> buttons = new ArrayList<>();
57
58 private GridPane grid = new GridPane() {
59 @Override protected double computePrefWidth(double height) {
60 double pw = 0;
61
62 for (int i = 0; i < buttons.size(); i++) {
63 Button btn = buttons.get(i);
64 pw = Math.min(pw, btn.prefWidth(-1));
65 }
66 return pw + gapSize;
67 }
68
69 @Override protected double computePrefHeight(double width) {
70 double ph = getDialogPane().getHeader() == null ? 0 : 10;
71
72 for (int i = 0; i < buttons.size(); i++) {
73 Button btn = buttons.get(i);
74 ph += btn.prefHeight(width) + gapSize;
75 }
76 return ph * 1.5;
77 }
78 };
79
80 public CommandLinksDialog(ButtonType... links) {
81 this(Arrays.asList(links));
82 }
83
84 public CommandLinksDialog(List<ButtonType> links) {
85 this.grid.setHgap(gapSize);
86 this.grid.setVgap(gapSize);
87
88 final DialogPane dialogPane = new DialogPane() {
89 @Override protected Node createButtonBar() {
90 return null;
91 }
92 };
93 setDialogPane(dialogPane);
94
95 dialogPane.getStylesheets().add(getClass().getResource("commandlink.css").toExternalForm());
96
97 setTitle(ControlResources.getString("Dialog.info.title"));
98
99 // FIXME extract to CSS
100 dialogPane.setGraphic(new ImageView(new Image(HelloAccordion.class.getResource("dialog/dialog-information.png").toExternalForm())));
101 dialogPane.getButtonTypes().addAll(links);
102
103 dialogPane.contentProperty().addListener(o -> updateGrid());
104
105 updateGrid();
106 dialogPane.getButtonTypes().addListener((ListChangeListener<? super ButtonType>)c -> {
107 updateGrid();
108 });
109 }
110
111 private void updateGrid() {
112 final Node content = getDialogPane().getContent();
113 final boolean dialogContentIsGrid = grid == content;
114
115 if (! dialogContentIsGrid) {
116 if (content != null) {
117 content.getStyleClass().add("command-link-message");
118 grid.add(content, 0, 0);
119 }
120 }
121
122 grid.getChildren().removeAll(buttons);
123 int row = 1;
124 for (final ButtonType action : getDialogPane().getButtonTypes()) {
125 if (action == null) continue;
126
127 // if (! (action instanceof DialogButton)) {
128 // throw new IllegalArgumentException("All actions in CommandLinksDialog must be instances of DialogAction");
129 // }
130 //
131 // DialogButton commandLink = (DialogButton) action;
132
133 // //replace link's event handler with a proper one
134 // commandLink.setOnAction(new EventHandler<ActionEvent>() {
135 // @Override public void handle(ActionEvent ae) {
136 // setResult(commandLink);
137 // }
138 // });
139
140 final Button button = buildCommandLinkButton(action);
141 final ButtonData buttonType = action.getButtonData();
142 button.setDefaultButton(buttonType != null && buttonType.isDefaultButton());
143 // button.setOnAction(commandLink);
144
145 button.setOnAction(new EventHandler<ActionEvent>() {
146 @Override public void handle(ActionEvent ae) {
147 setResult(action);
148 }
149 });
150
151 GridPane.setHgrow(button, Priority.ALWAYS);
152 GridPane.setVgrow(button, Priority.ALWAYS);
153 grid.add(button, 0, row++);
154 buttons.add(button);
155 }
156
157 // last button gets some extra padding (hacky)
158 GridPane.setMargin(buttons.get(buttons.size() - 1), new Insets(0,0,10,0));
159
160 if (! dialogContentIsGrid) {
161 getDialogPane().setContent(grid);
162 }
163 }
164
165 private Button buildCommandLinkButton(ButtonType commandLink) {
166 // put the content inside a button
167 final Button button = new Button();
168 button.getStyleClass().addAll("command-link-button");
169 button.setMaxHeight(Double.MAX_VALUE);
170 button.setMaxWidth(Double.MAX_VALUE);
171 button.setAlignment(Pos.CENTER_LEFT);
172
173 final Label titleLabel = new Label(commandLink.getText() );
174 titleLabel.minWidthProperty().bind(new DoubleBinding() {
175 {
176 bind(titleLabel.prefWidthProperty());
177 }
178
179 @Override protected double computeValue() {
180 return titleLabel.getPrefWidth() + 400;
181 }
182 });
183 titleLabel.getStyleClass().addAll("line-1");
184 titleLabel.setWrapText(true);
185 titleLabel.setAlignment(Pos.TOP_LEFT);
186 GridPane.setVgrow(titleLabel, Priority.NEVER);
187
188 // TODO no support in DialogButton for long text or graphic
189 // Label messageLabel = new Label(commandLink.getLongText() );
190 // messageLabel.getStyleClass().addAll("line-2");
191 // messageLabel.setWrapText(true);
192 // messageLabel.setAlignment(Pos.TOP_LEFT);
193 // messageLabel.setMaxHeight(Double.MAX_VALUE);
194 // GridPane.setVgrow(messageLabel, Priority.SOMETIMES);
195 //
196 // Image commandLinkImage = commandLink.getGraphic();
197 // Node view = commandLinkImage == null ?
198 // new ImageView(getClass().getResource("arrow-green-right.png").toExternalForm()) :
199 // new ImageView(commandLinkImage);
200 // Pane graphicContainer = new Pane(view);
201 // graphicContainer.getStyleClass().add("graphic-container");
202 ImageView arrow = new ImageView(HelloAccordion.class.getResource("about_16.png").toExternalForm());
203 GridPane.setValignment(arrow, VPos.TOP);
204 GridPane.setMargin(arrow, new Insets(0,10,0,0));
205
206 GridPane grid = new GridPane();
207 grid.minWidthProperty().bind(titleLabel.prefWidthProperty());
208 grid.setMaxHeight(Double.MAX_VALUE);
209 grid.setMaxWidth(Double.MAX_VALUE);
210 grid.getStyleClass().add("container");
211 grid.add(arrow, 0, 0, 1, 2);
212 grid.add(titleLabel, 1, 0);
213 // grid.add(messageLabel, 1, 1);
214
215 button.setGraphic(grid);
216 button.minWidthProperty().bind(titleLabel.prefWidthProperty());
217
218 return button;
219 }
220 }