How to change and delete an item from a container set

[rube...@yahoo.com]

Hi,

Sorry for my english.

I have a set of containers that move vertically efficiently.

To create a new container I use a floating button without problem.

To remove a container my idea was to make a long press on the container and proceed to remove the container but I do not know how to do it.

To change the contents of a container my idea was to press on the container and open a form with the information of the container and accepting to pass the updated information returned to the container (I imagine with the method replace).  I have no problem in making the form and loading the information but as to which container pass the information or do the replace.

Would appreciate an example

My code to create the container set and search is:

        Container cnCompras = new Container();

        cnCompras.setScrollableY(true);

        Vector vCompra2 = dT.getCompra2(cR1);

        for (int i = 0; i < vCompra2.size(); i++) {

            Compra2 lR2 = (Compra2) vCompra2.elementAt(i);

            cnCompras.addComponent(creaContenedorCompra2(fmCompra2, cR1, cR2));

        }

        txBusqueda.addDataChangeListener(new DataChangedListener() {

            public void dataChanged(int type, int index) {

                String t = txBusqueda.getText();

                if (t.length() < 1) {

                    for (Component cmp : cnCompras) {

                        cmp.setHidden(false);

                        cmp.setVisible(true);

                    }

                } else {

                    t = t.toLowerCase();

                    for (Component cmp : cnCompras) {

                        boolean show = false;

                        String val = null;

                        if (cmp instanceof Container) {

                               val = (String) cmp5.getPropertyValue("busqueda");

                         }

                         show = val != null && val.toLowerCase().indexOf(t) > -1;

                        cmp.setHidden(!show);

                        cmp.setVisible(show);

                    }

                }

                cnCompras.animateLayout(250);

            }

        }

        );

The "creaContenedorCompra2" method has the following code:

    private Container creaContenedorCompra2(Form fmCompra2, Compra1 lR1, Compra2 lR2) {

        TextArea articulo = new TextArea(2, 70);

        Label lbCantidad = new Label();

        Label lbPrecio = new Label();

        Label lbMonto = new Label();

        Label lbUM = new Label();

        TextArea cantidad = new TextArea();

        TextArea precio = new TextArea();

        TextArea monto = new TextArea();

        TextArea uM = new TextArea(1, 7);

        articulo.setUIID("MultiLine2");

        articulo.setFocusable(true);

        articulo.setEditable(false);

        articulo.setAlignment(TextArea.LEFT);

        articulo.setPropertyValue("serial", lR2.getSerial());

        lbCantidad.setText(idioma.getCantidad() + ":");

        lbCantidad.setUIID("MultiLine3");

        cantidad.setUIID("MultiLine3");

        cantidad.setFocusable(true);

        cantidad.setEnabled(true);

        lbPrecio.setText(idioma.getPrecio() + ":");

        lbPrecio.setUIID("MultiLine3");

        precio.setUIID("MultiLine3");

        precio.setFocusable(true);

        precio.setEnabled(true);

        lbMonto.setText(idioma.getMonto() + ":");

        lbMonto.setUIID("MultiLine3");

        monto.setUIID("LabelTotalBig");

        monto.setText("00.00");

        monto.setFocusable(true);

        monto.setEnabled(true);

        monto.setAlignment(TextArea.RIGHT);

        lbUM.setText(idioma.getUM() + ":");

        lbUM.setUIID("MultiLine3");

        uM.setUIID("MultiLine3");

        uM.setFocusable(true);

        uM.setEnabled(true);

        

        Button lbImagen = new Button() {

            @Override

            public void longPointerPress(int x, int y) {

                super.longPointerPress(x, y);

//              Delete Container               

            }

            @Override

            public void addActionListener(ActionListener l) {

                super.addActionListener(l); //To change body of generated methods, choose Tools | Templates.

//              Shows in a form the contents of a container is and when accepting passes the information of the form to container.

            }

        };

        lbImagen.setUIID("TransparentButton");

        articulo.setText(lR2.getNombreArticulo());

        uM.setText(lR2.getUnidadMedida());

        Double cnt = lR2.getCantidad();

        Double pre = lR2.getPrecio();

        Double mnt = 0.0;

        mnt = pre * cnt;

        cantidad.setText(Double.toString(cnt));

        precio.setText(Double.toString(pre));

        if (mnt == 0) {

            monto.setText(" 0.00");

        } else {

            monto.setText(Double.toString(mnt));

        }

        if (pre > 0d) {

            articulo.setUIID("MultiLine2Resaltado");

        } else {

            articulo.setUIID("MultiLine2");

        }

        if (lR2.getCarpetaImagenCategoria().equals("")) {

            lR2.setCarpetaImagenCategoria("generico.png");

        }

        try {

            lbImagen.setIcon(Image.createImage("/" + lR2.getCarpetaImagenCategoria()));

        } catch (IOException ex) {

            try {

                lbImagen.setIcon(Image.createImage("/generico.png"));

            } catch (IOException ex1) {

                Dialog.show(idioma.getError(), ex1.getMessage(), idioma.getContinuar(), null);

            }

        }

        Container cnCantidad = new Container(new BoxLayout(BoxLayout.Y_AXIS));

        cnCantidad.addComponent(lbCantidad);

        cnCantidad.addComponent(cantidad);

        Container cnPrecio = new Container(new BoxLayout(BoxLayout.Y_AXIS));

        cnPrecio.addComponent(lbPrecio);

        cnPrecio.addComponent(precio);

        BorderLayout border = new BorderLayout();

        border.setCenterBehavior(BorderLayout.CENTER_BEHAVIOR_CENTER_ABSOLUTE);

        Container cnMonto = new Container();

        cnMonto.setLayout(new BorderLayout());

        cnMonto.setLayout(border);

        cnMonto.addComponent(BorderLayout.CENTER, monto);

        cnMonto.setUIID("LabelTotalBig");

        Container cnUM = new Container(new BoxLayout(BoxLayout.Y_AXIS));

        cnUM.addComponent(lbUM);

        cnUM.addComponent(uM);

        Container cnInfo = new Container();

        cnInfo.setLayout(new GridLayout(1, 3));

        cnInfo.addComponent(cnUM);

        cnInfo.addComponent(cnCantidad);

        cnInfo.addComponent(cnPrecio);

        Container cnDatos = new Container(new BoxLayout(BoxLayout.Y_AXIS));

        cnDatos.addComponent(articulo);

        cnDatos.addComponent(cnInfo);

        Container cnS1 = new Container(new BorderLayout());

        cnS1.setLayout(new BoxLayout(BoxLayout.X_AXIS));

        cnS1.getStyle().setBorder(Border.createBevelRaised());

        cnS1.addComponent(new Label());

        Container cnS2 = new Container(new BorderLayout());

        cnS2.setLayout(new BoxLayout(BoxLayout.Y_AXIS));

        cnS2.getStyle().setBorder(Border.createBevelRaised());

        cnS2.addComponent(new Label(""));

        Container cnPreItem = new Container(new BoxLayout(BoxLayout.X_AXIS));

        cnPreItem.addComponent(lbImagen);

        cnPreItem.addComponent(cnDatos);

        Container cnItem = new Container();

        cnItem.setLayout(new BorderLayout());

        cnItem.addComponent(BorderLayout.CENTER, cnPreItem);

        cnItem.addComponent(BorderLayout.EAST, cnMonto);

        Container cnDato = new Container();

        cnDato.setLayout(new BoxLayout(BoxLayout.Y_AXIS));

        cnDato.addComponent(cnItem);;

        cnDato.addComponent(cnS1);

        cnDato.setPropertyValue("busqueda", lR2.getNombreArticulo() + lR2.getSerial());

        cnDato.setLeadComponent(lbImagen);

        return cnDato;

    }

[Steve Hannah]

To remove a container my idea was to make a long press on the container and proceed to remove the container but I do not know how to do it.

Override  the longPointerPress(int,int) method of Component in your container to receive a longpress event:

new Container() {

                @Override

                public void longPointerPress(int x, int y) {

                    super.longPointerPress(x, y); //To change body of generated methods, choose Tools | Templates.

                }

                

            };

 

To change the contents of a container my idea was to press on the container and open a form with the information of the container and accepting to pass the updated information returned to the container (I imagine with the method replace). 

You can replace a container in a form by calling "parentContainer.replace(oldComponent, newComponent)".

Best regards

Steve