/********************************************************************************
* Copyright (c) 2019-2020 [Open Lowcode SAS](https://openlowcode.com/)
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0 .
*
* SPDX-License-Identifier: EPL-2.0
********************************************************************************/
package org.openlowcode.client.graphic.widget;
import java.io.IOException;
import java.util.ArrayList;
import org.openlowcode.tools.messages.MessageReader;
import org.openlowcode.tools.messages.OLcRemoteException;
import org.openlowcode.client.graphic.CPageData;
import org.openlowcode.client.graphic.CPageNode;
import org.openlowcode.client.graphic.CPageSignifPath;
import org.openlowcode.client.graphic.Callback;
import org.openlowcode.client.runtime.PageActionManager;
import org.openlowcode.tools.structure.DataElt;
import org.openlowcode.tools.structure.DataEltType;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Node;
import javafx.scene.control.TabPane;
import javafx.scene.layout.Background;
import javafx.scene.layout.BackgroundFill;
import javafx.scene.layout.Border;
import javafx.scene.layout.BorderStroke;
import javafx.scene.layout.BorderStrokeStyle;
import javafx.scene.layout.BorderWidths;
import javafx.scene.layout.CornerRadii;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Pane;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.stage.Window;
/**
* @author <a href="https://openlowcode.com/" rel="nofollow">Open Lowcode
* SAS</a>
*
*/
public class CComponentBand
extends
CPageNode {
private int direction;
private ArrayList<CPageNode> elements;
/**
* horizontal band, adding widgets from left to right
*/
public static final int DIRECTION_RIGHT = 1;
/**
* vertical band, adding widgets from top to bottom
*/
public static final int DIRECTION_DOWN = 2;
/**
* vertical band, adding widgets from bottom to top
*/
public static final int DIRECTION_UP = 3;
/**
* horizontal band, adding widgets from right to left
*/
public static final int DIRECTION_LEFT = 4;
/**
* a component band with a direction right and no upper line in display
*/
public static final int DIRECTION_RIGHT_NOLINE = 5;
private int minwidth = 0;
/**
* sets a minimum width in pixels for the component band
*
* @param minwidth minimum width in pixels
*/
public void setMinWidth(int minwidth) {
this.minwidth = minwidth;
}
/**
* creates a component band with given direction and parent parent
*
* @param direction direction defined as static int on this class
* @param parentpath path of the parent widget
*/
public CComponentBand(int direction, CPageSignifPath parentpath) {
super(parentpath, null);
this.direction = direction;
elements = new ArrayList<CPageNode>();
}
/**
* adds a node in the component band
*
* @param node node to add
*/
public void addNode(CPageNode node) {
this.elements.add(node);
}
/**
* Creates a component band from the server
*
* @param reader message reader from the server
* @param parentpath path of the parent widget
* @throws OLcRemoteException if anything happens on the server while sending
* the message
* @throws IOException if any transmission error occurs during the
* message sending
*/
public CComponentBand(MessageReader reader, CPageSignifPath parentpath) throws OLcRemoteException, IOException {
super(reader, parentpath);
elements = new ArrayList<CPageNode>();
String directionstring = reader.returnNextStringField("DIR");
direction = new Integer(directionstring).intValue();
reader.startStructureArray("ELT");
while (reader.structureArrayHasNextElement("ELT")) {
CPageNode nodeelement = CPageNode.parseNode(reader, this.nodepath);
elements.add(nodeelement);
reader.returnNextEndStructure("ELT");
}
reader.returnNextEndStructure("COMPONENTBAND"); // consumes the closing the component band
}
/**
* returns a pane similar to a CComponentBand (with similar spacing and insets)
*
* @param direction direction as defined in the static ints in that class
* @return a pane with the given direction
*/
public static Pane returnBandPane(int direction) {
Pane thispane=null;
if (direction == DIRECTION_DOWN) {
thispane = new VBox(8);
thispane.setPadding(new Insets(5, 5, 5, 0));
thispane.setBackground(new Background(new BackgroundFill(Color.WHITE, null, null)));
return thispane;
}
if (direction == DIRECTION_RIGHT) {
thispane = new HBox(8);
thispane.setPadding(new Insets(2, 0, 0, 0));
((HBox)thispane).setAlignment(Pos.CENTER_LEFT);
thispane.setBackground(new Background(new BackgroundFill(Color.WHITE, null, null)));
thispane.setBorder(new Border(new BorderStroke(Color.LIGHTGREY, Color.LIGHTGREY, Color.LIGHTGREY, Color.LIGHTGREY,
BorderStrokeStyle.SOLID, BorderStrokeStyle.NONE, BorderStrokeStyle.NONE, BorderStrokeStyle.NONE,
CornerRadii.EMPTY, new BorderWidths(1), Insets.EMPTY)));
return thispane;
}
if (direction == DIRECTION_RIGHT_NOLINE) {
thispane = new HBox(8);
((HBox)thispane).setAlignment(Pos.CENTER_LEFT);
thispane.setBackground(new Background(new BackgroundFill(Color.WHITE, null, null)));
return thispane;
}
throw new RuntimeException("Direction "+direction+" not supported");
}
private Pane bandpane;
@Override
public Node getNode(
PageActionManager actionmanager,
CPageData inputdata,
Window parentwindow,
TabPane[] parenttabpanes,
CollapsibleNode nodetocollapsewhenactiontriggered) {
Pane thispane = CComponentBand.returnBandPane(direction);
this.bandpane = thispane;
if (this.minwidth != 0)
thispane.setMinWidth(this.minwidth);
for (int i = 0; i < elements.size(); i++) {
Node currentnode = elements.get(i).getNode(actionmanager, inputdata, parentwindow, parenttabpanes,nodetocollapsewhenactiontriggered);
// if node is null (e.g. CObjectIdStorage), then do not add it to the graphic
if (currentnode != null)
thispane.getChildren().add(currentnode);
}
return thispane;
}
@Override
public DataElt getDataElt(DataEltType type, String eltname, String objectfieldname) {
throw new RuntimeException(
String.format("request of action data of type %s, but CComponentBand cannot provide any data", type));
}
@Override
public void forceUpdateData(DataElt dataelt) {
throw new RuntimeException("Inline data force update not supported by the widget");
}
@Override
public CPageNode deepcopyWithCallback(Callback callback) {
CComponentBand deepcopy = new CComponentBand(direction, this.getParentpath());
for (int i = 0; i < this.elements.size(); i++) {
CPageNode thiselement = this.elements.get(i);
deepcopy.addNode(thiselement.deepcopyWithCallback(callback));
}
return deepcopy;
}
@Override
public void mothball() {
this.bandpane.getChildren().clear();
for (int i = 0; i < elements.size(); i++)
elements.get(i).mothball();
}
}
