defaultconfigurationpage.java

EclipseTrader is a stock exchange analysis system, featuring shares pricing watch, intraday and hi

            public void widgetSelected(SelectionEvent e)
            {
                AddIndicatorWizard wizard = new AddIndicatorWizard();
                ChartIndicator indicator = wizard.open();
                if (indicator != null)
                {
                    TreeItem[] selection = tree.getSelection();
                    if (selection.length != 0)
                    {
                        if (selection[0].getData() instanceof ChartTab)
                            ((ChartTab)selection[0].getData()).getIndicators().add(indicator);
                        else if (selection[0].getData() instanceof ChartIndicator)
                            ((ChartIndicator)selection[0].getData()).getParent().getIndicators().add(indicator);
                        updateTree();
                    }
                }
            }
        });
        
        settings = new Button(buttonsComposite, SWT.PUSH);
        settings.setText(Messages.DefaultConfigurationPage_Settings);
        GridData gridData = new GridData(SWT.FILL, SWT.BEGINNING, true, false);
        gridData.verticalIndent = 5;
        settings.setLayoutData(gridData);
        settings.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e)
            {
                TreeItem[] selection = tree.getSelection();
                if (selection.length != 0)
                {
                    if (selection[0].getData() instanceof ChartTab)
                    {
                        ChartTab tab = (ChartTab)selection[0].getData();
                        InputDialog dlg = new InputDialog(tree.getShell(), Messages.DefaultConfigurationPage_TabSettingsDialogTitle, Messages.DefaultConfigurationPage_TabSettingsDialogMessage, tab.getLabel(), new IInputValidator() {
                            public String isValid(String newText)
                            {
                                return newText.length() == 0 ? "" : null; //$NON-NLS-1$
                            }
                        });
                        if (dlg.open() == InputDialog.OK)
                        {
                            tab.setLabel(dlg.getValue());
                            selection[0].setText(tab.getLabel());
                        }
                    }
                    else if (selection[0].getData() instanceof ChartIndicator)
                    {
                        ChartIndicator indicator = (ChartIndicator)selection[0].getData();
                        IndicatorSettingsDialog dlg = new IndicatorSettingsDialog(indicator, tree.getShell());
                        dlg.open();
                    }
                }
            }
        });
        
        remove = new Button(buttonsComposite, SWT.PUSH);
        remove.setText(Messages.DefaultConfigurationPage_Remove);
        gridData = new GridData(SWT.FILL, SWT.BEGINNING, true, false);
        gridData.verticalIndent = 5;
        remove.setLayoutData(gridData);
        remove.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e)
            {
                TreeItem[] selection = tree.getSelection();
                if (selection.length != 0)
                {
                    if (selection[0].getData() instanceof ChartRow)
                        ((ChartRow)selection[0].getData()).getParent().getRows().remove(selection[0].getData());
                    else if (selection[0].getData() instanceof ChartTab)
                        ((ChartTab)selection[0].getData()).getParent().getTabs().remove(selection[0].getData());
                    else if (selection[0].getData() instanceof ChartIndicator)
                        ((ChartIndicator)selection[0].getData()).getParent().getIndicators().remove(selection[0].getData());
                    selection[0].dispose();
                    updateTree();
                }
            }
        });
        
        performDefaults();

        return content;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.preference.PreferencePage#performDefaults()
     */
    protected void performDefaults()
    {
        chart = ChartsPlugin.createDefaultChart();
        updateTree();
    }
    
    /* (non-Javadoc)
     * @see org.eclipse.jface.preference.PreferencePage#performOk()
     */
    public boolean performOk()
    {
        switch(period.getSelectionIndex())
        {
            case 0:
                chart.setPeriod(ChartView.PERIOD_ALL);
                break;
            case 1:
                chart.setPeriod(ChartView.PERIOD_LAST2YEARS);
                break;
            case 2:
                chart.setPeriod(ChartView.PERIOD_LASTYEAR);
                break;
            case 3:
                chart.setPeriod(ChartView.PERIOD_LAST6MONTHS);
                break;
            case 4:
            {
                chart.setPeriod(ChartView.PERIOD_CUSTOM);
                try
                {
                    chart.setBeginDate(CorePlugin.getDateParse().parse(begin.getText()));
                    chart.setEndDate(CorePlugin.getDateParse().parse(end.getText()));
                }
                catch (ParseException e) {
                    e.printStackTrace();
                }
                break;
            }
        }
        chart.setCompression(10 - interval.getSelectionIndex());

        ChartsPlugin.saveDefaultChart(chart);
        
        return super.performOk();
    }

    protected void updateTree()
    {
        TreeItem[] selection = tree.getSelection();
        final Object data = (selection.length != 0) ? selection[0].getData() : null;
        
        tree.setRedraw(false);
        tree.removeAll();

        chart.accept(new IChartVisitor() {

            public void visit(Chart chart)
            {
            }

            public void visit(ChartRow row)
            {
                TreeItem treeItem = new TreeItem(tree, SWT.NONE);
                treeItem.setText(Messages.DefaultConfigurationPage_Row + String.valueOf(tree.getItemCount())); 
                treeItem.setData(row);
                if (row.equals(data))
                    tree.setSelection(treeItem);
            }

            public void visit(ChartTab tab)
            {
                TreeItem parentItem = tree.getItem(tree.getItemCount() - 1);
                
                TreeItem treeItem = new TreeItem(parentItem, SWT.NONE);
                treeItem.setText(tab.getLabel());
                treeItem.setData(tab);
                if (tab.equals(data))
                    tree.setSelection(treeItem);
                
                parentItem.setExpanded(true);
            }

            public void visit(ChartIndicator indicator)
            {
                TreeItem parentItem = tree.getItem(tree.getItemCount() - 1);
                parentItem = parentItem.getItem(parentItem.getItemCount() - 1); 

                IConfigurationElement plugin = getIndicatorPlugin(indicator.getPluginId());
                
                TreeItem treeItem = new TreeItem(parentItem, SWT.NONE);
                treeItem.setText(plugin.getAttribute("name")); //$NON-NLS-1$
                treeItem.setData(indicator);
                if (indicator.equals(data))
                    tree.setSelection(treeItem);
                
                parentItem.setExpanded(true);
            }

            public void visit(ChartObject object)
            {
            }
        });
        
/*        for (int r = 0; r < chart.getRows().size(); r++)
        {
            ChartRow row = (ChartRow)chart.getRows().get(r);

            TreeItem rowNode = new TreeItem(tree, SWT.NONE);
            rowNode.setText("ROW " + String.valueOf(r + 1));
            rowNode.setData(row);

            for (int t = 0; t < row.getTabs().size(); t++)
            {
                ChartTab tab = (ChartTab)row.getTabs().get(t);

                TreeItem tabNode = new TreeItem(rowNode, SWT.NONE);
                tabNode.setText(tab.getLabel());
                tabNode.setData(tab);

                rowNode.setExpanded(true);
            
                for (int i = 0; i < tab.getIndicators().size(); i++)
                {
                    ChartIndicator indicator = (ChartIndicator)tab.getIndicators().get(i);
                    IConfigurationElement plugin = getIndicatorPlugin(indicator.getPluginId());
                    
                    TreeItem indicatorNode = new TreeItem(tabNode, SWT.NONE);
                    indicatorNode.setText(plugin.getAttribute("name"));
                    indicatorNode.setData(indicator);

                    tabNode.setExpanded(true);
                }
            }
        }*/
        
        tree.setRedraw(true);

        updateButtonsEnablement();
    }
    
    protected void updateButtonsEnablement()
    {
        TreeItem[] selection = tree.getSelection();
        addTab.setEnabled(selection.length != 0);
        addIndicator.setEnabled(selection.length != 0 && (selection[0].getData() instanceof ChartTab || selection[0].getData() instanceof ChartIndicator));
        settings.setEnabled(selection.length != 0 && (selection[0].getData() instanceof ChartTab || selection[0].getData() instanceof ChartIndicator));
        remove.setEnabled(selection.length != 0);
    }

    private static IConfigurationElement getIndicatorPlugin(String id)
    {
        IExtensionRegistry registry = Platform.getExtensionRegistry();
        IExtensionPoint extensionPoint = registry.getExtensionPoint(ChartsPlugin.INDICATORS_EXTENSION_POINT);
        if (extensionPoint != null)
        {
            IConfigurationElement[] members = extensionPoint.getConfigurationElements();
            for (int i = 0; i < members.length; i++)
            {
                IConfigurationElement item = members[i];
                if (item.getAttribute("id").equals(id)) //$NON-NLS-1$
                    return item;
            }
        }
        
        return null;
    }

    protected void adjustDateFormat(Text widget)
    {
        DateFormat dateDisplay = CorePlugin.getDateFormat();
        DateFormat dateParse = CorePlugin.getDateParse();
        if (widget.getText().length() != 0)
            try
            {
                Date d = dateParse.parse(widget.getText());
                widget.setText(dateDisplay.format(d));
            }
            catch (ParseException pe) {
                CorePlugin.logException(pe);
            }
    }
}