jcatalog.java

是一个专门设计用于触摸屏的POS(point of sales)应用软件

    }

    public void valueChanged(ListSelectionEvent evt) {
        
        if (!evt.getValueIsAdjusting()) {
            int i = m_jListCategories.getSelectedIndex();
            if (i >= 0) {
                // Lo hago visible...
                Rectangle oRect = m_jListCategories.getCellBounds(i, i);
                m_jListCategories.scrollRectToVisible(oRect);       
            }
        }
    }  
    
    protected void fireSelectedProduct(ProductInfoExt prod) {
        EventListener[] l = listeners.getListeners(ActionListener.class);
        ActionEvent e = null;
        for (int i = 0; i < l.length; i++) {
            if (e == null) {
                e = new ActionEvent(prod, ActionEvent.ACTION_PERFORMED, prod.getReference());
            }
            ((ActionListener) l[i]).actionPerformed(e);	       
        }
    }   
    
    private void showCommentPanel(String view) {
        CardLayout cl = (CardLayout)(this.getLayout());
        cl.show(this, "comment");  
        
        cl = (CardLayout)(this.getLayout());
        cl.show(this, view);  
    }
    
    private void showCatalogPanel() {
        CardLayout cl = (CardLayout)(this.getLayout());
        cl.show(this, "catalog");  
    }
    
    private void showProductsPanel(String view) {
        CardLayout cl = (CardLayout)(m_jProducts.getLayout());
        cl.show(m_jProducts, view);  
    }
    
    private class SelectedAction implements ActionListener {
        private ProductInfoExt prod;
        public SelectedAction(ProductInfoExt prod) {
            this.prod = prod;
        }
        public void actionPerformed(ActionEvent e) {
            fireSelectedProduct(prod);
        }
    }
    
    private class BackAction implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            showCatalogPanel();
        }
    }
    
    private class CategoriesListModel extends AbstractListModel {
        private java.util.List m_aCategories;
        public CategoriesListModel(java.util.List aCategories) {
            m_aCategories = aCategories;
        }
        public int getSize() { 
            return m_aCategories.size(); 
        }
        public Object getElementAt(int i) {
            return m_aCategories.get(i);
        }    
    }
    
    private class SmallCategoryRenderer extends DefaultListCellRenderer {

        public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
            super.getListCellRendererComponent(list, null, index, isSelected, cellHasFocus);
            Object[] cat = (Object[]) value;
            setText((String) cat[1]);
            setIcon((Icon) cat[2]);
            return this;
        }      
    }            
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
    private void initComponents() {
        m_jCatalogAll = new javax.swing.JPanel();
        jPanel1 = new javax.swing.JPanel();
        m_jscrollcat = new javax.swing.JScrollPane();
        m_jListCategories = new javax.swing.JList();
        jPanel2 = new javax.swing.JPanel();
        jPanel3 = new javax.swing.JPanel();
        m_jUp = new javax.swing.JButton();
        m_jDown = new javax.swing.JButton();
        m_jProducts = new javax.swing.JPanel();
        m_jProductSingle = new javax.swing.JPanel();

        setLayout(new java.awt.CardLayout());

        setBorder(javax.swing.BorderFactory.createEmptyBorder(5, 5, 5, 5));
        m_jCatalogAll.setLayout(new java.awt.BorderLayout());

        jPanel1.setLayout(new java.awt.BorderLayout());

        m_jscrollcat.setHorizontalScrollBarPolicy(javax.swing.ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
        m_jscrollcat.setVerticalScrollBarPolicy(javax.swing.ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
        m_jscrollcat.setPreferredSize(new java.awt.Dimension(235, 0));
        m_jListCategories.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
        m_jListCategories.setFocusable(false);
        m_jListCategories.addListSelectionListener(new javax.swing.event.ListSelectionListener() {
            public void valueChanged(javax.swing.event.ListSelectionEvent evt) {
                m_jListCategoriesValueChanged(evt);
            }
        });

        m_jscrollcat.setViewportView(m_jListCategories);

        jPanel1.add(m_jscrollcat, java.awt.BorderLayout.WEST);

        jPanel2.setLayout(new java.awt.BorderLayout());

        jPanel3.setLayout(new java.awt.GridLayout(0, 1, 0, 5));

        jPanel3.setBorder(javax.swing.BorderFactory.createEmptyBorder(0, 5, 0, 5));
        m_jUp.setIcon(new javax.swing.ImageIcon(getClass().getResource("/net/adrianromero/images/1uparrow.png")));
        m_jUp.setFocusPainted(false);
        m_jUp.setFocusable(false);
        m_jUp.setMargin(new java.awt.Insets(8, 14, 8, 14));
        m_jUp.setRequestFocusEnabled(false);
        m_jUp.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                m_jUpActionPerformed(evt);
            }
        });

        jPanel3.add(m_jUp);

        m_jDown.setIcon(new javax.swing.ImageIcon(getClass().getResource("/net/adrianromero/images/1downarrow.png")));
        m_jDown.setFocusPainted(false);
        m_jDown.setFocusable(false);
        m_jDown.setMargin(new java.awt.Insets(8, 14, 8, 14));
        m_jDown.setRequestFocusEnabled(false);
        m_jDown.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                m_jDownActionPerformed(evt);
            }
        });

        jPanel3.add(m_jDown);

        jPanel2.add(jPanel3, java.awt.BorderLayout.NORTH);

        jPanel1.add(jPanel2, java.awt.BorderLayout.CENTER);

        m_jCatalogAll.add(jPanel1, java.awt.BorderLayout.WEST);

        m_jProducts.setLayout(new java.awt.CardLayout());

        m_jProducts.setBorder(javax.swing.BorderFactory.createEmptyBorder(0, 5, 0, 0));
        m_jCatalogAll.add(m_jProducts, java.awt.BorderLayout.CENTER);

        add(m_jCatalogAll, "catalog");

        m_jProductSingle.setLayout(new java.awt.CardLayout());

        add(m_jProductSingle, "comment");

    }// </editor-fold>//GEN-END:initComponents

    private void m_jDownActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_m_jDownActionPerformed

        int i = m_jListCategories.getSelectionModel().getMaxSelectionIndex();
        if (i < 0){
            i =  0; // No hay ninguna seleccionada
        } else {
            i ++;
            if (i >= m_jListCategories.getModel().getSize() ) {
                i = m_jListCategories.getModel().getSize() - 1;
            }
        }

        if ((i >= 0) && (i < m_jListCategories.getModel().getSize())) {
            // Solo seleccionamos si podemos.
            m_jListCategories.getSelectionModel().setSelectionInterval(i, i);
        }        
        
    }//GEN-LAST:event_m_jDownActionPerformed

    private void m_jUpActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_m_jUpActionPerformed

        int i = m_jListCategories.getSelectionModel().getMinSelectionIndex();
        if (i < 0){
            i = m_jListCategories.getModel().getSize() - 1; // No hay ninguna seleccionada
        } else {
            i --;
            if (i < 0) {
                i = 0;
            }
        }

        if ((i >= 0) && (i < m_jListCategories.getModel().getSize())) {
            // Solo seleccionamos si podemos.
            m_jListCategories.getSelectionModel().setSelectionInterval(i, i);
        }        
        
        
    }//GEN-LAST:event_m_jUpActionPerformed

    private void m_jListCategoriesValueChanged(javax.swing.event.ListSelectionEvent evt) {//GEN-FIRST:event_m_jListCategoriesValueChanged

        if (!evt.getValueIsAdjusting()) {
            Object[] i = (Object[]) m_jListCategories.getSelectedValue();
            if (i != null) {
                showProductsPanel(((Integer) i[0]).toString());
            }
        }
        
    }//GEN-LAST:event_m_jListCategoriesValueChanged
    
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    private javax.swing.JPanel m_jCatalogAll;
    private javax.swing.JButton m_jDown;
    private javax.swing.JList m_jListCategories;
    private javax.swing.JPanel m_jProductSingle;
    private javax.swing.JPanel m_jProducts;
    private javax.swing.JButton m_jUp;
    private javax.swing.JScrollPane m_jscrollcat;
    // End of variables declaration//GEN-END:variables
    
}