Java tutorial
/* * Copyright (c) 2004-2011 Marco Maccaferri and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Marco Maccaferri - initial API and implementation */ package org.eclipsetrader.ui.internal.charts.views; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.beans.PropertyChangeSupport; import java.io.InputStream; import java.io.StringReader; import java.io.StringWriter; import java.net.URI; import java.util.Collections; import java.util.Comparator; import javax.xml.bind.JAXBContext; import javax.xml.bind.Marshaller; import javax.xml.bind.Unmarshaller; import org.eclipse.core.runtime.FileLocator; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Path; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.jobs.IJobChangeEvent; import org.eclipse.core.runtime.jobs.JobChangeAdapter; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.ActionContributionItem; import org.eclipse.jface.action.IAction; import org.eclipse.jface.action.IMenuListener; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.IToolBarManager; import org.eclipse.jface.action.MenuManager; import org.eclipse.jface.action.Separator; import org.eclipse.jface.dialogs.IDialogSettings; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.preference.PreferenceDialog; import org.eclipse.jface.util.IPropertyChangeListener; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.window.SameShellProvider; import org.eclipse.jface.window.Window; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.BusyIndicator; import org.eclipse.swt.dnd.DND; import org.eclipse.swt.dnd.DropTarget; import org.eclipse.swt.dnd.Transfer; import org.eclipse.swt.graphics.Rectangle; import org.eclipse.swt.printing.PrintDialog; import org.eclipse.swt.printing.Printer; import org.eclipse.swt.printing.PrinterData; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.ui.IActionBars; import org.eclipse.ui.IMemento; import org.eclipse.ui.ISaveablePart; import org.eclipse.ui.ISharedImages; import org.eclipse.ui.IViewSite; import org.eclipse.ui.IWorkbenchActionConstants; import org.eclipse.ui.PartInitException; import org.eclipse.ui.XMLMemento; import org.eclipse.ui.actions.ActionFactory; import org.eclipse.ui.dialogs.PropertyDialogAction; import org.eclipse.ui.part.ViewPart; import org.eclipsetrader.core.charts.OHLCDataSeries; import org.eclipsetrader.core.charts.repository.IChartTemplate; import org.eclipsetrader.core.feed.IHistory; import org.eclipsetrader.core.feed.TimeSpan; import org.eclipsetrader.core.instruments.ISecurity; import org.eclipsetrader.core.internal.charts.repository.ChartTemplate; import org.eclipsetrader.core.repositories.IPropertyConstants; import org.eclipsetrader.core.repositories.IRepositoryService; import org.eclipsetrader.core.views.IViewChangeListener; import org.eclipsetrader.core.views.IViewItem; import org.eclipsetrader.core.views.ViewEvent; import org.eclipsetrader.ui.charts.BaseChartViewer; import org.eclipsetrader.ui.charts.ChartCanvas; import org.eclipsetrader.ui.charts.ChartObjectFactoryTransfer; import org.eclipsetrader.ui.charts.ChartRowViewItem; import org.eclipsetrader.ui.charts.ChartView; import org.eclipsetrader.ui.charts.ChartViewItem; import org.eclipsetrader.ui.charts.IChartEditorListener; import org.eclipsetrader.ui.charts.IChartObject; import org.eclipsetrader.ui.internal.UIActivator; import org.eclipsetrader.ui.internal.charts.DataImportJob; import org.eclipsetrader.ui.internal.charts.ImportDataPage; import org.eclipsetrader.ui.internal.charts.Period; import org.eclipsetrader.ui.internal.charts.PeriodList; public class ChartViewPart extends ViewPart implements ISaveablePart { public static final String VIEW_ID = "org.eclipsetrader.ui.chart"; //$NON-NLS-1$ public static final String K_VIEWS = "Views"; //$NON-NLS-1$ public static final String K_URI = "uri"; //$NON-NLS-1$ public static final String K_TEMPLATE = "template"; //$NON-NLS-1$ public static final String K_PRIVATE_TEMPLATE = "private-template"; //$NON-NLS-1$ public static final String K_PERIOD = "period"; //$NON-NLS-1$ public static final String K_RESOLUTION = "resolution"; //$NON-NLS-1$ public static final String K_SHOW_TOOLTIPS = "show-tooltips"; //$NON-NLS-1$ public static final String K_ZOOM_FACTOR = "zoom-factor"; //$NON-NLS-1$ public static final String K_SHOW_CURRENT_PRICE = "show-current-price"; //$NON-NLS-1$ public static final String K_SHOW_CURRENT_BOOK = "show-current-book"; //$NON-NLS-1$ private URI uri; private ISecurity security; private IChartTemplate template; private BaseChartViewer viewer; private ChartView view; private IHistory history; private IHistory subsetHistory; private ChartViewDropTarget dropListener; private boolean dirty; private IDialogSettings dialogSettings; private Action cutAction; private Action copyAction; private Action pasteAction; private Action deleteAction; private Action propertiesAction; private Action zoomOutAction; private Action zoomInAction; private Action zoomResetAction; private Action updateAction; private Action periodAllAction; private ContributionItem[] periodActions; private Action currentPriceLineAction; private CurrentPriceLineFactory currentPriceLineFactory; private Action currentBookAction; private CurrentBookFactory currentBookFactory; IMemento memento; IPreferenceStore preferenceStore; private class ContributionItem extends ActionContributionItem { private final Period period; public ContributionItem(final Period period) { super(new Action(period.getDescription(), Action.AS_RADIO_BUTTON) { @Override public void run() { setPeriod(period.getPeriod(), period.getResolution()); } }); this.period = period; } public Period getPeriod() { return period; } } private PropertyChangeListener propertyChangeListener = new PropertyChangeListener() { @Override public void propertyChange(PropertyChangeEvent evt) { if (IPropertyConstants.BARS.equals(evt.getPropertyName())) { TimeSpan resolution = TimeSpan.fromString(dialogSettings.get(K_RESOLUTION)); view.setRootDataSeries( new OHLCDataSeries(security.getName(), subsetHistory.getAdjustedOHLC(), resolution)); Display.getDefault().asyncExec(new Runnable() { @Override public void run() { if (!viewer.getControl().isDisposed()) { refreshChart(); } } }); } } }; private IViewChangeListener viewChangeListener = new IViewChangeListener() { @Override public void viewChanged(ViewEvent event) { scheduleLoadJob(); setDirty(); } }; private IPropertyChangeListener preferenceChangeListener = new IPropertyChangeListener() { @Override public void propertyChange(org.eclipse.jface.util.PropertyChangeEvent event) { IPreferenceStore preferences = (IPreferenceStore) event.getSource(); if (UIActivator.PREFS_SHOW_TOOLTIPS.equals(event.getProperty())) { viewer.setShowTooltips(preferences.getBoolean(UIActivator.PREFS_SHOW_TOOLTIPS)); } if (UIActivator.PREFS_SHOW_SCALE_TOOLTIPS.equals(event.getProperty())) { viewer.setShowScaleTooltips(preferences.getBoolean(UIActivator.PREFS_SHOW_SCALE_TOOLTIPS)); } if (UIActivator.PREFS_CROSSHAIR_ACTIVATION.equals(event.getProperty())) { viewer.setCrosshairMode(preferences.getInt(UIActivator.PREFS_CROSSHAIR_ACTIVATION)); } if (UIActivator.PREFS_CROSSHAIR_SUMMARY_TOOLTIP.equals(event.getProperty())) { viewer.setDecoratorSummaryTooltips( preferences.getBoolean(UIActivator.PREFS_CROSSHAIR_SUMMARY_TOOLTIP)); } if (UIActivator.PREFS_CHART_PERIODS.equals(event.getProperty())) { updatePeriodActions(); } } }; private Action printAction = new Action(Messages.ChartViewPart_PrintAction) { @Override public void run() { PrintDialog dialog = new PrintDialog(getViewSite().getShell(), SWT.NONE); PrinterData data = dialog.open(); if (data == null) { return; } if (data.printToFile) { data.fileName = "print.out"; // TODO you probably want to ask the user for a filename //$NON-NLS-1$ } Printer printer = new Printer(data); try { Rectangle printerBounds = printer.getClientArea(); Rectangle trimBounds = printer.computeTrim(printerBounds.x, printerBounds.y, printerBounds.width, printerBounds.height); System.out.println(printerBounds + ", " + trimBounds); //$NON-NLS-1$ if (printer.startJob(getPartName())) { viewer.print(printer); printer.endJob(); } } catch (Throwable e) { e.printStackTrace(); } finally { printer.dispose(); } } }; public ChartViewPart() { } /* (non-Javadoc) * @see org.eclipse.ui.part.ViewPart#init(org.eclipse.ui.IViewSite, org.eclipse.ui.IMemento) */ @Override public void init(IViewSite site, IMemento memento) throws PartInitException { super.init(site, memento); this.memento = memento; this.preferenceStore = UIActivator.getDefault().getPreferenceStore(); try { dialogSettings = UIActivator.getDefault().getDialogSettings().getSection(K_VIEWS) .getSection(site.getSecondaryId()); uri = new URI(dialogSettings.get(K_URI)); IRepositoryService repositoryService = UIActivator.getDefault().getRepositoryService(); security = repositoryService.getSecurityFromURI(uri); String privateTemplate = dialogSettings.get(K_PRIVATE_TEMPLATE); if (privateTemplate != null) { template = unmarshal(privateTemplate); } if (template == null) { IPath templatePath = new Path("data"); //$NON-NLS-1$ if (dialogSettings.get(K_TEMPLATE) != null) { templatePath = templatePath.append(dialogSettings.get(K_TEMPLATE)); } else { templatePath = templatePath.append("basic-template.xml"); } InputStream stream = FileLocator.openStream(UIActivator.getDefault().getBundle(), templatePath, false); template = unmarshal(stream); } } catch (Exception e) { Status status = new Status(IStatus.ERROR, UIActivator.PLUGIN_ID, Messages.ChartViewPart_LoadingErrorMessage + site.getSecondaryId(), e); UIActivator.getDefault().getLog().log(status); } site.setSelectionProvider(new SelectionProvider()); createActions(); createPeriodActions(); IActionBars actionBars = site.getActionBars(); IMenuManager menuManager = actionBars.getMenuManager(); menuManager.add(new Separator("periods.top")); //$NON-NLS-1$ menuManager.add(new Separator("periods")); //$NON-NLS-1$ menuManager.add(new Separator("periods.bottom")); //$NON-NLS-1$ menuManager.add(currentPriceLineAction); menuManager.add(currentBookAction); menuManager.appendToGroup("periods.top", periodAllAction); //$NON-NLS-1$ if (periodActions != null) { for (int i = 0; i < periodActions.length; i++) { menuManager.appendToGroup("periods", periodActions[i]); } } IToolBarManager toolBarManager = actionBars.getToolBarManager(); toolBarManager.add(new Separator("additions")); //$NON-NLS-1$ toolBarManager.add(updateAction); TimeSpan periodTimeSpan = TimeSpan.fromString(dialogSettings.get(K_PERIOD)); TimeSpan resolutionTimeSpan = TimeSpan.fromString(dialogSettings.get(K_RESOLUTION)); setPeriodActionSelection(periodTimeSpan, resolutionTimeSpan); actionBars.setGlobalActionHandler(cutAction.getId(), cutAction); actionBars.setGlobalActionHandler(copyAction.getId(), copyAction); actionBars.setGlobalActionHandler(pasteAction.getId(), pasteAction); actionBars.setGlobalActionHandler(deleteAction.getId(), deleteAction); actionBars.setGlobalActionHandler(ActionFactory.PRINT.getId(), printAction); ToolAction toolAction = new ToolAction(Messages.ChartViewPart_LineAction, this, "org.eclipsetrader.ui.charts.tools.line"); actionBars.setGlobalActionHandler(toolAction.getId(), toolAction); toolAction = new ToolAction(Messages.ChartViewPart_FiboLineAction, this, "org.eclipsetrader.ui.charts.tools.fiboline"); actionBars.setGlobalActionHandler(toolAction.getId(), toolAction); toolAction = new ToolAction(Messages.ChartViewPart_FanLineAction, this, "org.eclipsetrader.ui.charts.tools.fanline"); actionBars.setGlobalActionHandler(toolAction.getId(), toolAction); toolAction = new ToolAction(Messages.ChartViewPart_FiboArcAction, this, "org.eclipsetrader.ui.charts.tools.fiboarc"); actionBars.setGlobalActionHandler(toolAction.getId(), toolAction); actionBars.setGlobalActionHandler(zoomInAction.getActionDefinitionId(), zoomInAction); actionBars.setGlobalActionHandler(zoomOutAction.getActionDefinitionId(), zoomOutAction); actionBars.setGlobalActionHandler(zoomResetAction.getActionDefinitionId(), zoomResetAction); actionBars.setGlobalActionHandler(propertiesAction.getId(), propertiesAction); actionBars.updateActionBars(); } /* (non-Javadoc) * @see org.eclipse.ui.part.ViewPart#saveState(org.eclipse.ui.IMemento) */ @Override public void saveState(IMemento memento) { memento.putInteger(K_ZOOM_FACTOR, viewer.getZoomFactor()); int[] weights = viewer.getWeights(); if (weights.length > 1) { StringBuilder sb = new StringBuilder(); for (int i = 0; i < weights.length; i++) { if (i != 0) { sb.append(";"); //$NON-NLS-1$ } sb.append(weights[i]); } memento.putString("weights", sb.toString()); //$NON-NLS-1$ } super.saveState(memento); } protected void createActions() { ISharedImages sharedImages = getViewSite().getWorkbenchWindow().getWorkbench().getSharedImages(); zoomInAction = new Action(Messages.ChartViewPart_ZoomInAction) { @Override public void run() { int factor = viewer.getZoomFactor(); viewer.setZoomFactor(factor + 1); zoomOutAction.setEnabled(true); zoomResetAction.setEnabled(true); } }; zoomInAction.setId("zoomIn"); //$NON-NLS-1$ zoomInAction.setActionDefinitionId("org.eclipsetrader.ui.charts.zoomIn"); //$NON-NLS-1$ zoomOutAction = new Action(Messages.ChartViewPart_ZoomOutAction) { @Override public void run() { int factor = viewer.getZoomFactor(); if (factor > 0) { viewer.setZoomFactor(factor - 1); } zoomOutAction.setEnabled(factor != 1); zoomResetAction.setEnabled(factor != 1); } }; zoomOutAction.setId("zoomOut"); //$NON-NLS-1$ zoomOutAction.setActionDefinitionId("org.eclipsetrader.ui.charts.zoomOut"); //$NON-NLS-1$ zoomResetAction = new Action(Messages.ChartViewPart_NormalSizeAction) { @Override public void run() { viewer.setZoomFactor(0); zoomOutAction.setEnabled(false); zoomResetAction.setEnabled(false); } }; zoomResetAction.setId("zoomReset"); //$NON-NLS-1$ zoomResetAction.setActionDefinitionId("org.eclipsetrader.ui.charts.zoomReset"); //$NON-NLS-1$ zoomOutAction.setEnabled(false); zoomResetAction.setEnabled(false); periodAllAction = new Action(Messages.ChartViewPart_AllPeriodAction, IAction.AS_RADIO_BUTTON) { @Override public void run() { setPeriod(null, TimeSpan.days(1)); } }; cutAction = new Action(Messages.ChartViewPart_CutAction) { @Override public void run() { } }; cutAction.setId("cut"); //$NON-NLS-1$ cutAction.setActionDefinitionId("org.eclipse.ui.edit.cut"); //$NON-NLS-1$ cutAction.setImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_CUT)); cutAction.setDisabledImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_CUT_DISABLED)); cutAction.setEnabled(false); copyAction = new Action(Messages.ChartViewPart_CopyAction) { @Override public void run() { } }; copyAction.setId("copy"); //$NON-NLS-1$ copyAction.setActionDefinitionId("org.eclipse.ui.edit.copy"); //$NON-NLS-1$ copyAction.setImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_COPY)); copyAction .setDisabledImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_COPY_DISABLED)); copyAction.setEnabled(false); pasteAction = new Action(Messages.ChartViewPart_PasteAction) { @Override public void run() { } }; pasteAction.setId("copy"); //$NON-NLS-1$ pasteAction.setActionDefinitionId("org.eclipse.ui.edit.paste"); //$NON-NLS-1$ pasteAction.setImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_PASTE)); pasteAction .setDisabledImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_PASTE_DISABLED)); pasteAction.setEnabled(false); deleteAction = new Action(Messages.ChartViewPart_DeleteAction) { @Override public void run() { IStructuredSelection selection = (IStructuredSelection) getViewSite().getSelectionProvider() .getSelection(); if (!selection.isEmpty()) { if (MessageDialog.openConfirm(getViewSite().getShell(), getPartName(), Messages.ChartViewPart_DeleteConfirmMessage)) { ChartViewItem viewItem = (ChartViewItem) selection.getFirstElement(); ChartRowViewItem rowViewItem = (ChartRowViewItem) viewItem.getParent(); if (rowViewItem.getItemCount() == 1) { rowViewItem.getParentView().removeRow(rowViewItem); } else { rowViewItem.removeChildItem(viewItem); } } } } }; deleteAction.setId("delete"); //$NON-NLS-1$ deleteAction.setActionDefinitionId("org.eclipse.ui.edit.delete"); //$NON-NLS-1$ deleteAction.setImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_DELETE)); deleteAction.setDisabledImageDescriptor( sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_DELETE_DISABLED)); deleteAction.setEnabled(false); updateAction = new Action(Messages.ChartViewPart_UpdateAction) { @Override public void run() { doUpdate(); } }; updateAction.setId("update"); //$NON-NLS-1$ updateAction.setImageDescriptor(UIActivator.getImageDescriptor("icons/etool16/refresh.gif")); //$NON-NLS-1$ updateAction.setEnabled(true); propertiesAction = new PropertyDialogAction(new SameShellProvider(getViewSite().getShell()), getSite().getSelectionProvider()) { @Override public void run() { PreferenceDialog dialog = createDialog(); if (dialog != null) { if (dialog.open() == Window.OK) { IStructuredSelection selection = (IStructuredSelection) getSite().getSelectionProvider() .getSelection(); ChartViewItem viewItem = (ChartViewItem) selection.getFirstElement(); ((ChartRowViewItem) viewItem.getParent()).refresh(); refreshChart(); setDirty(); } } } }; propertiesAction.setId(ActionFactory.PROPERTIES.getId()); propertiesAction.setActionDefinitionId("org.eclipse.ui.file.properties"); //$NON-NLS-1$ propertiesAction.setEnabled(false); currentPriceLineAction = new Action(Messages.ChartViewPart_ShowCurrentPriceAction, IAction.AS_CHECK_BOX) { @Override public void run() { currentPriceLineFactory.setEnable(isChecked()); dialogSettings.put(K_SHOW_CURRENT_PRICE, isChecked()); } }; currentBookAction = new Action(Messages.ChartViewPart_ShowBookAction, IAction.AS_CHECK_BOX) { @Override public void run() { currentBookFactory.setEnable(isChecked()); dialogSettings.put(K_SHOW_CURRENT_BOOK, isChecked()); } }; } /* (non-Javadoc) * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite) */ @Override public void createPartControl(Composite parent) { viewer = new BaseChartViewer(parent, SWT.NONE); viewer.addSelectionChangedListener(new ISelectionChangedListener() { @Override public void selectionChanged(SelectionChangedEvent event) { handleSelectionChanged((IStructuredSelection) event.getSelection()); handleActionsEnablement(); } }); viewer.getEditor().addListener(new IChartEditorListener() { @Override public void applyEditorValue() { refreshChart(); setDirty(); } @Override public void cancelEditor() { } }); Transfer[] transferTypes = new Transfer[] { ChartObjectFactoryTransfer.getInstance(), }; DropTarget dropTarget = new DropTarget(viewer.getControl(), DND.DROP_COPY | DND.DROP_MOVE); dropTarget.setTransfer(transferTypes); dropTarget.addDropListener(dropListener = new ChartViewDropTarget(viewer)); viewer.setShowTooltips(preferenceStore.getBoolean(UIActivator.PREFS_SHOW_TOOLTIPS)); viewer.setShowScaleTooltips(preferenceStore.getBoolean(UIActivator.PREFS_SHOW_SCALE_TOOLTIPS)); viewer.setCrosshairMode(preferenceStore.getInt(UIActivator.PREFS_CROSSHAIR_ACTIVATION)); viewer.setDecoratorSummaryTooltips(preferenceStore.getBoolean(UIActivator.PREFS_CROSSHAIR_SUMMARY_TOOLTIP)); preferenceStore.addPropertyChangeListener(preferenceChangeListener); if (memento != null) { if (memento.getString(K_ZOOM_FACTOR) != null) { int factor = memento.getInteger(K_ZOOM_FACTOR); viewer.setZoomFactor(factor); zoomOutAction.setEnabled(factor != 0); zoomResetAction.setEnabled(factor != 0); } } createContextMenu(); currentPriceLineFactory = new CurrentPriceLineFactory(); currentPriceLineFactory.setSecurity(security); currentPriceLineFactory.setEnable(dialogSettings.getBoolean(K_SHOW_CURRENT_PRICE)); currentPriceLineAction.setChecked(dialogSettings.getBoolean(K_SHOW_CURRENT_PRICE)); currentBookFactory = new CurrentBookFactory(); currentBookFactory.setSecurity(security); currentBookFactory.setEnable(dialogSettings.getBoolean(K_SHOW_CURRENT_BOOK)); currentBookAction.setChecked(dialogSettings.getBoolean(K_SHOW_CURRENT_BOOK)); if (security != null && template != null) { setPartName(NLS.bind("{0} - {1}", new Object[] { //$NON-NLS-1$ security.getName(), template.getName(), })); view = new ChartView(template); ChartRowViewItem rowItem = (ChartRowViewItem) view.getItems()[0]; ChartViewItem viewItem = new ChartViewItem(rowItem, currentPriceLineFactory); rowItem.addChildItem(0, viewItem); viewItem = new ChartViewItem(rowItem, currentBookFactory); rowItem.addChildItem(0, viewItem); view.addViewChangeListener(viewChangeListener); scheduleLoadJob(); } } void createContextMenu() { MenuManager menuMgr = new MenuManager("#popupMenu", "popupMenu"); //$NON-NLS-1$ //$NON-NLS-2$ menuMgr.setRemoveAllWhenShown(true); menuMgr.addMenuListener(new IMenuListener() { @Override public void menuAboutToShow(IMenuManager menuManager) { menuManager.add(new Separator("top")); //$NON-NLS-1$ menuManager.add(cutAction); menuManager.add(copyAction); menuManager.add(pasteAction); menuManager.add(new Separator()); menuManager.add(deleteAction); menuManager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS)); menuManager.add(propertiesAction); } }); viewer.getControl().setMenu(menuMgr.createContextMenu(viewer.getControl())); getSite().registerContextMenu(menuMgr, getSite().getSelectionProvider()); } void scheduleLoadJob() { final Display display = viewer.getControl().getDisplay(); if (subsetHistory != null) { PropertyChangeSupport propertyChangeSupport = (PropertyChangeSupport) subsetHistory .getAdapter(PropertyChangeSupport.class); if (propertyChangeSupport != null) { propertyChangeSupport.removePropertyChangeListener(propertyChangeListener); } } ChartLoadJob job = new ChartLoadJob(security); job.addJobChangeListener(new JobChangeAdapter() { @Override public void done(IJobChangeEvent event) { final ChartLoadJob job = (ChartLoadJob) event.getJob(); history = job.getHistory(); subsetHistory = job.getSubsetHistory(); view.setRootDataSeries(new OHLCDataSeries(security.getName(), subsetHistory.getAdjustedOHLC(), job.getResolutionTimeSpan())); display.asyncExec(new Runnable() { @Override public void run() { if (viewer.getControl().isDisposed()) { return; } if (memento == null) { memento = XMLMemento.createWriteRoot("root"); //$NON-NLS-1$ } saveState(memento); TimeSpan resolutionTimeSpan = TimeSpan.fromString(dialogSettings.get(K_RESOLUTION)); if (resolutionTimeSpan == null) { resolutionTimeSpan = TimeSpan.days(1); } viewer.setResolutionTimeSpan(resolutionTimeSpan); dropListener.setView(view); PropertyChangeSupport propertyChangeSupport = (PropertyChangeSupport) subsetHistory .getAdapter(PropertyChangeSupport.class); if (propertyChangeSupport != null) { propertyChangeSupport.addPropertyChangeListener(propertyChangeListener); } refreshChart(); } }); } }); job.setTimeSpan(TimeSpan.fromString(dialogSettings.get(K_PERIOD))); job.setResolutionTimeSpan(TimeSpan.fromString(dialogSettings.get(K_RESOLUTION))); job.setName(Messages.ChartViewPart_LoadingText + getPartName()); job.setUser(true); job.schedule(); } /* (non-Javadoc) * @see org.eclipse.ui.part.WorkbenchPart#setFocus() */ @Override public void setFocus() { viewer.getControl().setFocus(); } /* (non-Javadoc) * @see org.eclipse.ui.part.WorkbenchPart#dispose() */ @Override public void dispose() { view.removeViewChangeListener(viewChangeListener); if (subsetHistory != null) { PropertyChangeSupport propertyChangeSupport = (PropertyChangeSupport) subsetHistory .getAdapter(PropertyChangeSupport.class); if (propertyChangeSupport != null) { propertyChangeSupport.removePropertyChangeListener(propertyChangeListener); } } if (UIActivator.getDefault() != null) { IPreferenceStore preferences = UIActivator.getDefault().getPreferenceStore(); preferences.removePropertyChangeListener(preferenceChangeListener); } super.dispose(); } protected void handleSelectionChanged(IStructuredSelection selection) { if (selection.size() != 1 || !(selection.getFirstElement() instanceof IChartObject)) { getViewSite().getSelectionProvider().setSelection(StructuredSelection.EMPTY); return; } ChartViewItemFinder finder = new ChartViewItemFinder((IChartObject) selection.getFirstElement()); view.accept(finder); if (finder.getViewItem() == null) { getViewSite().getSelectionProvider().setSelection(new StructuredSelection(view)); } else { getViewSite().getSelectionProvider().setSelection(new StructuredSelection(finder.getViewItem())); } } protected void handleActionsEnablement() { IStructuredSelection selection = (IStructuredSelection) getViewSite().getSelectionProvider().getSelection(); IViewItem viewItem = (IViewItem) selection.getFirstElement(); cutAction.setEnabled( !selection.isEmpty() && viewItem != null && viewItem.getAdapter(MainChartFactory.class) == null); copyAction.setEnabled( !selection.isEmpty() && viewItem != null && viewItem.getAdapter(MainChartFactory.class) == null); deleteAction.setEnabled( !selection.isEmpty() && viewItem != null && viewItem.getAdapter(MainChartFactory.class) == null); propertiesAction.setEnabled(!selection.isEmpty()); } /* (non-Javadoc) * @see org.eclipse.ui.ISaveablePart#doSave(org.eclipse.core.runtime.IProgressMonitor) */ @Override public void doSave(IProgressMonitor monitor) { try { String privateTemplate = marshal(view.getTemplate()); dialogSettings.put(K_PRIVATE_TEMPLATE, privateTemplate); clearDirty(); } catch (Exception e) { e.printStackTrace(); } } /* (non-Javadoc) * @see org.eclipse.ui.ISaveablePart#doSaveAs() */ @Override public void doSaveAs() { } protected void setDirty() { if (!dirty) { dirty = true; firePropertyChange(PROP_DIRTY); } } protected void clearDirty() { if (dirty) { dirty = false; firePropertyChange(PROP_DIRTY); } } /* (non-Javadoc) * @see org.eclipse.ui.ISaveablePart#isDirty() */ @Override public boolean isDirty() { return dirty; } /* (non-Javadoc) * @see org.eclipse.ui.ISaveablePart#isSaveAsAllowed() */ @Override public boolean isSaveAsAllowed() { return false; } /* (non-Javadoc) * @see org.eclipse.ui.ISaveablePart#isSaveOnCloseNeeded() */ @Override public boolean isSaveOnCloseNeeded() { return dirty; } /* (non-Javadoc) * @see org.eclipse.ui.part.WorkbenchPart#getAdapter(java.lang.Class) */ @Override @SuppressWarnings("unchecked") public Object getAdapter(Class adapter) { if (adapter.isAssignableFrom(BaseChartViewer.class)) { return viewer; } if (adapter.isAssignableFrom(ChartCanvas.class)) { return viewer.getSelectedChartCanvas(); } if (adapter.isAssignableFrom(ChartView.class)) { return view; } if (adapter.isAssignableFrom(IChartTemplate.class)) { return template; } if (adapter.isAssignableFrom(ISecurity.class)) { return security; } if (adapter.isAssignableFrom(IDialogSettings.class)) { return dialogSettings; } return super.getAdapter(adapter); } private String marshal(IChartTemplate object) throws Exception { StringWriter string = new StringWriter(); JAXBContext jaxbContext = JAXBContext.newInstance(ChartTemplate.class); Marshaller marshaller = jaxbContext.createMarshaller(); marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.FALSE); marshaller.setProperty(Marshaller.JAXB_ENCODING, "UTF-8"); //$NON-NLS-1$ marshaller.marshal(object, string); return string.toString(); } private ChartTemplate unmarshal(String string) throws Exception { JAXBContext jaxbContext = JAXBContext.newInstance(ChartTemplate.class); Unmarshaller unmarshaller = jaxbContext.createUnmarshaller(); return (ChartTemplate) unmarshaller.unmarshal(new StringReader(string)); } private ChartTemplate unmarshal(InputStream stream) throws Exception { JAXBContext jaxbContext = JAXBContext.newInstance(ChartTemplate.class); Unmarshaller unmarshaller = jaxbContext.createUnmarshaller(); return (ChartTemplate) unmarshaller.unmarshal(stream); } protected void refreshChart() { BusyIndicator.showWhile(Display.getCurrent(), new Runnable() { @Override public void run() { ChartRowViewItem[] rowViewItem = (ChartRowViewItem[]) view.getAdapter(ChartRowViewItem[].class); if (rowViewItem != null) { IChartObject[][] input = new IChartObject[rowViewItem.length][]; for (int i = 0; i < input.length; i++) { input[i] = (IChartObject[]) rowViewItem[i].getAdapter(IChartObject[].class); } viewer.setInput(input); if (memento != null && memento.getString("weights") != null) { //$NON-NLS-1$ String[] s = memento.getString("weights").split(";"); //$NON-NLS-1$ //$NON-NLS-2$ int[] weights = viewer.getWeights(); for (int i = 0; i < weights.length && i < s.length; i++) { weights[i] = Integer.valueOf(s[i]); } viewer.setWeights(weights); } } } }); } public void setPeriod(TimeSpan period, TimeSpan resolution) { dialogSettings.put(K_PERIOD, period != null ? period.toString() : (String) null); dialogSettings.put(K_RESOLUTION, resolution != null ? resolution.toString() : (String) null); periodAllAction.setChecked(period == null); setPeriodActionSelection(period, resolution); scheduleLoadJob(); } protected void doUpdate() { TimeSpan[] aggregation = new TimeSpan[] { TimeSpan.days(1), TimeSpan.minutes(1), }; IDialogSettings dialogSettings = UIActivator.getDefault().getDialogSettings() .getSection(ImportDataPage.class.getName()); if (dialogSettings != null) { String[] s = dialogSettings.getArray("AGGREGATION"); if (s != null && s.length != 0) { aggregation = new TimeSpan[s.length]; for (int i = 0; i < aggregation.length; i++) { aggregation[i] = TimeSpan.fromString(s[i]); } } } DataImportJob job = new DataImportJob(security, DataImportJob.INCREMENTAL, null, null, aggregation); job.setUser(true); job.schedule(); } protected void updatePeriodActions() { IActionBars actionBars = getViewSite().getActionBars(); IMenuManager menuManager = actionBars.getMenuManager(); if (periodActions != null) { for (int i = 0; i < periodActions.length; i++) { menuManager.remove(periodActions[i]); periodActions[i].dispose(); } periodActions = null; } createPeriodActions(); if (periodActions != null) { for (int i = 0; i < periodActions.length; i++) { menuManager.appendToGroup("periods", periodActions[i]); } } TimeSpan periodTimeSpan = TimeSpan.fromString(dialogSettings.get(K_PERIOD)); TimeSpan resolutionTimeSpan = TimeSpan.fromString(dialogSettings.get(K_RESOLUTION)); setPeriodActionSelection(periodTimeSpan, resolutionTimeSpan); actionBars.updateActionBars(); } public void createPeriodActions() { try { JAXBContext jaxbContext = JAXBContext.newInstance(PeriodList.class); Unmarshaller unmarshaller = jaxbContext.createUnmarshaller(); StringReader stream = new StringReader( UIActivator.getDefault().getPreferenceStore().getString(UIActivator.PREFS_CHART_PERIODS)); PeriodList list = (PeriodList) unmarshaller.unmarshal(stream); Collections.sort(list, new Comparator<Period>() { @Override public int compare(Period o1, Period o2) { if (o1.getPeriod().higherThan(o2.getPeriod())) { return -1; } if (o2.getPeriod().higherThan(o1.getPeriod())) { return 1; } return 0; } }); periodActions = new ContributionItem[list.size()]; for (int i = 0; i < periodActions.length; i++) { periodActions[i] = new ContributionItem(list.get(i)); } } catch (Exception e) { e.printStackTrace(); } } public void setPeriodActionSelection(TimeSpan period, TimeSpan resolution) { if (periodActions != null) { for (int i = 0; i < periodActions.length; i++) { periodActions[i].getAction().setChecked(periodActions[i].getPeriod().equalsTo(period, resolution)); } } } }