Examples with Canvas org.eclipse.swt.widgets.Canvas used on opensource projects

Example 36 with Canvas

use of org.eclipse.swt.widgets.Canvas in project uiautomatorviewer by yangzaiCN.

the class UiAutomatorViewer method createContents.

/**
 * Create contents of the application window.
 *
 * @param parent
 */
@Override
protected Control createContents(Composite parent) {
    UiAutomatorModel.createInstance(this);
    Composite basePane = new Composite(parent, SWT.NONE);
    basePane.setLayout(new GridLayout(2, false));
    mScreenshotCanvas = new Canvas(basePane, SWT.NONE);
    mScreenshotCanvas.addMouseListener(new MouseAdapter() {

        @Override
        public void mouseUp(MouseEvent e) {
            UiAutomatorModel.getModel().toggleExploreMode();
        }
    });
    mScreenshotCanvas.setBackground(getShell().getDisplay().getSystemColor(SWT.COLOR_BLACK));
    mScreenshotCanvas.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 3));
    mScreenshotCanvas.addPaintListener(new PaintListener() {

        @Override
        public void paintControl(PaintEvent e) {
            if (mCachedScaleImage != null) {
                // shifting the image here, so that there's a border around screen shot
                // this makes highlighting red rectangles on the screen shot edges more visible
                e.gc.drawImage(mCachedScaleImage, IMG_BORDER, IMG_BORDER);
                Rectangle rect = UiAutomatorModel.getModel().getCurrentDrawingRect();
                if (rect != null) {
                    e.gc.setForeground(e.gc.getDevice().getSystemColor(SWT.COLOR_RED));
                    if (UiAutomatorModel.getModel().isExploreMode()) {
                        // when we highlight nodes dynamically on mouse move,
                        // use dashed borders
                        e.gc.setLineStyle(SWT.LINE_DASH);
                        e.gc.setLineWidth(1);
                    } else {
                        // when highlighting nodes on tree node selection,
                        // use solid borders
                        e.gc.setLineStyle(SWT.LINE_SOLID);
                        e.gc.setLineWidth(2);
                    }
                    e.gc.drawRectangle(IMG_BORDER + getScaledSize(rect.x), IMG_BORDER + getScaledSize(rect.y), getScaledSize(rect.width), getScaledSize(rect.height));
                }
            }
        }
    });
    mScreenshotCanvas.addMouseMoveListener(new MouseMoveListener() {

        @Override
        public void mouseMove(MouseEvent e) {
            if (UiAutomatorModel.getModel().isExploreMode()) {
                UiAutomatorModel.getModel().updateSelectionForCoordinates(getInverseScaledSize(e.x - IMG_BORDER), getInverseScaledSize(e.y - IMG_BORDER));
            }
        }
    });
    mScreenshotCanvas.setBackgroundImage(ImageHelper.loadImageDescriptorFromResource("images/logo.png").createImage());
    ToolBarManager toolBarManager = new ToolBarManager(SWT.FLAT);
    toolBarManager.add(mOpenFilesAction);
    toolBarManager.add(mExpandAllAction);
    toolBarManager.add(mScreenshotAction);
    toolBarManager.createControl(basePane);
    mTreeViewer = new TreeViewer(basePane, SWT.BORDER);
    Tree tree = mTreeViewer.getTree();
    GridData gd_Tree = new GridData(SWT.FILL, SWT.FILL, false, true, 1, 1);
    gd_Tree.widthHint = 350;
    tree.setLayoutData(gd_Tree);
    mTreeViewer.setContentProvider(new BasicTreeNodeContentProvider());
    // default LabelProvider uses toString() to generate text to display
    mTreeViewer.setLabelProvider(new LabelProvider());
    mTreeViewer.addSelectionChangedListener(new ISelectionChangedListener() {

        @Override
        public void selectionChanged(SelectionChangedEvent event) {
            if (event.getSelection().isEmpty()) {
                UiAutomatorModel.getModel().setSelectedNode(null);
            } else if (event.getSelection() instanceof IStructuredSelection) {
                IStructuredSelection selection = (IStructuredSelection) event.getSelection();
                Object o = selection.toArray()[0];
                if (o instanceof BasicTreeNode) {
                    UiAutomatorModel.getModel().setSelectedNode((BasicTreeNode) o);
                }
            }
        }
    });
    // move focus so that it's not on tool bar (looks weird)
    tree.setFocus();
    Group grpNodeDetail = new Group(basePane, SWT.NONE);
    grpNodeDetail.setLayout(new FillLayout(SWT.HORIZONTAL));
    GridData gd_grpNodeDetail = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
    gd_grpNodeDetail.heightHint = FIXED_DETAIL_VIEW_HEIGHT;
    gd_grpNodeDetail.minimumHeight = FIXED_DETAIL_VIEW_HEIGHT;
    gd_grpNodeDetail.widthHint = FIXED_RHS_WIDTH;
    gd_grpNodeDetail.minimumWidth = FIXED_RHS_WIDTH;
    grpNodeDetail.setLayoutData(gd_grpNodeDetail);
    grpNodeDetail.setText("Node Detail");
    Composite tableContainer = new Composite(grpNodeDetail, SWT.NONE);
    tableContainer.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
    TableColumnLayout columnLayout = new TableColumnLayout();
    tableContainer.setLayout(columnLayout);
    mTableViewer = new TableViewer(tableContainer, SWT.BORDER | SWT.FULL_SELECTION);
    Table table = mTableViewer.getTable();
    table.setLinesVisible(true);
    // use ArrayContentProvider here, it assumes the input to the TableViewer
    // is an array, where each element represents a row in the table
    mTableViewer.setContentProvider(new ArrayContentProvider());
    TableViewerColumn tableViewerColumnKey = new TableViewerColumn(mTableViewer, SWT.NONE);
    TableColumn tblclmnKey = tableViewerColumnKey.getColumn();
    tableViewerColumnKey.setLabelProvider(new ColumnLabelProvider() {

        @Override
        public String getText(Object element) {
            if (element instanceof AttributePair) {
                // first column, shows the attribute name
                return ((AttributePair) element).key;
            }
            return super.getText(element);
        }
    });
    columnLayout.setColumnData(tblclmnKey, new ColumnWeightData(1, ColumnWeightData.MINIMUM_WIDTH, true));
    TableViewerColumn tableViewerColumnValue = new TableViewerColumn(mTableViewer, SWT.NONE);
    tableViewerColumnValue.setEditingSupport(new AttributeTableEditingSupport(mTableViewer));
    TableColumn tblclmnValue = tableViewerColumnValue.getColumn();
    columnLayout.setColumnData(tblclmnValue, new ColumnWeightData(2, ColumnWeightData.MINIMUM_WIDTH, true));
    tableViewerColumnValue.setLabelProvider(new ColumnLabelProvider() {

        @Override
        public String getText(Object element) {
            if (element instanceof AttributePair) {
                // second column, shows the attribute value
                return ((AttributePair) element).value;
            }
            return super.getText(element);
        }
    });
    return basePane;
}

Example 37 with Canvas

use of org.eclipse.swt.widgets.Canvas in project archi by archimatetool.

the class OverviewOutlinePage method createControl.

@Override
public void createControl(Composite parent) {
    if (fEditPart == null) {
        return;
    }
    // create canvas and lws
    fCanvas = new Canvas(parent, SWT.NONE);
    LightweightSystem lws = new LightweightSystem(fCanvas);
    fThumbnail = new ScrollableThumbnail((Viewport) fEditPart.getFigure());
    fThumbnail.setUseScaledGraphics(false);
    fThumbnail.setSource(fEditPart.getLayer(LayerConstants.PRINTABLE_LAYERS));
    fThumbnail.setBorder(new MarginBorder(3));
    lws.setContents(fThumbnail);
    // Help
    PlatformUI.getWorkbench().getHelpSystem().setHelp(fCanvas, HELP_ID);
}

Example 38 with Canvas

use of org.eclipse.swt.widgets.Canvas in project archi by archimatetool.

the class SimpleSWTExample method createMainPanel.

private void createMainPanel() {
    mainComposite = new Canvas(mainShell, SWT.NO_BACKGROUND);
    GridData mainGridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL, GridData.VERTICAL_ALIGN_FILL, true, true);
    mainGridData.widthHint = INITIAL_PANEL_WIDTH;
    mainGridData.heightHint = INITIAL_PANEL_HEIGHT;
    mainComposite.setLayoutData(mainGridData);
    mainComposite.addPaintListener(new GraphPaintListener());
    mainComposite.setBackground(new Color(255, 255, 255));
    mainComposite.setLayout(null);
    mainComposite.addMouseMoveListener(new MouseMoveListener() {

        @Override
        public void mouseMove(MouseEvent e) {
            if (selectedEntity == null) {
                // Nothing selected, lets use a mouse hover
                SimpleNode oldEntity = hoverEntity;
                hoverEntity = null;
                for (Iterator iter = entities.iterator(); iter.hasNext() && selectedEntity == null; ) {
                    SimpleNode entity = (SimpleNode) iter.next();
                    double x = entity.getX();
                    double y = entity.getY();
                    double w = entity.getWidth();
                    double h = entity.getHeight();
                    Rectangle rect = new Rectangle((int) x, (int) y, (int) w, (int) h);
                    if (rect.contains(e.x, e.y)) {
                        hoverEntity = entity;
                        hoverEntity.ignoreInLayout(true);
                        hoverEntity.setSelected();
                        break;
                    }
                }
                if (oldEntity != null && oldEntity != hoverEntity) {
                    oldEntity.ignoreInLayout(false);
                    oldEntity.setUnSelected();
                }
            }
        }
    });
    mainComposite.addMouseListener(new MouseListener() {

        @Override
        public void mouseDoubleClick(MouseEvent e) {
        }

        @Override
        public void mouseDown(MouseEvent e) {
            selectedEntity = null;
            hoverEntity = null;
            for (Iterator iter = entities.iterator(); iter.hasNext() && selectedEntity == null; ) {
                SimpleNode entity = (SimpleNode) iter.next();
                double x = entity.getX();
                double y = entity.getY();
                double w = entity.getWidth();
                double h = entity.getHeight();
                Rectangle rect = new Rectangle((int) x, (int) y, (int) w, (int) h);
                if (rect.contains(e.x, e.y)) {
                    selectedEntity = entity;
                }
            }
            if (selectedEntity != null) {
                mouseDownPoint = new Point(e.x, e.y);
                selectedEntityPositionAtMouseDown = new Point((int) selectedEntity.getX(), (int) selectedEntity.getY());
                selectedEntity.ignoreInLayout(true);
                selectedEntity.setSelected();
            } else {
                mouseDownPoint = null;
                selectedEntityPositionAtMouseDown = null;
            }
        }

        @Override
        public void mouseUp(MouseEvent e) {
            if (selectedEntity != null) {
                selectedEntity.ignoreInLayout(false);
                selectedEntity.setUnSelected();
                List relatedNodes = selectedEntity.getRelatedEntities();
                for (Iterator iter = relatedNodes.iterator(); iter.hasNext(); ) {
                    SimpleNode element = (SimpleNode) iter.next();
                    element.setUnSelected();
                }
                SimpleRelationship[] rels = selectedEntity.getRelationships();
                for (int i = 0; i < rels.length; i++) {
                    rels[i].resetLineWidth();
                }
            }
            selectedEntity = null;
            mouseDownPoint = null;
            selectedEntityPositionAtMouseDown = null;
        }
    });
    // stops the algorithm when the window is closed
    mainComposite.addDisposeListener(new DisposeListener() {

        @Override
        public void widgetDisposed(DisposeEvent e) {
            if (currentLayoutAlgorithm != null) {
                currentLayoutAlgorithm.stop();
            }
        }
    });
    mainComposite.addMouseMoveListener(new MouseMoveListener() {

        @Override
        public void mouseMove(MouseEvent e) {
            if (selectedEntity != null && mouseDownPoint != null) {
                double dx = e.x - mouseDownPoint.x;
                double dy = e.y - mouseDownPoint.y;
                selectedEntity.setLocation(selectedEntityPositionAtMouseDown.x + dx, selectedEntityPositionAtMouseDown.y + dy);
                mainComposite.redraw();
            }
        }
    });
}

Example 39 with Canvas

use of org.eclipse.swt.widgets.Canvas in project archi by archimatetool.

the class ProfilesManagerDialog method createButtonPanel.

/**
 * Create the button panel
 */
private void createButtonPanel(Composite parent) {
    Composite client = new Composite(parent, SWT.NULL);
    GridLayout layout = new GridLayout();
    layout.marginHeight = 0;
    layout.marginWidth = 0;
    client.setLayout(layout);
    GridDataFactory.create(GridData.VERTICAL_ALIGN_BEGINNING).applyTo(client);
    fButtonNew = new Button(client, SWT.PUSH);
    fButtonNew.setText(Messages.ProfilesManagerDialog_10);
    GridDataFactory.create(GridData.FILL_HORIZONTAL).applyTo(fButtonNew);
    fButtonNew.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(SelectionEvent e) {
            createNewProfile();
        }
    });
    fButtonDelete = new Button(client, SWT.PUSH);
    fButtonDelete.setText(Messages.ProfilesManagerDialog_11);
    fButtonDelete.setEnabled(false);
    GridDataFactory.create(GridData.FILL_HORIZONTAL).applyTo(fButtonDelete);
    fButtonDelete.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(SelectionEvent e) {
            deleteSelectedProfiles();
        }
    });
    fImageButton = new Button(client, SWT.PUSH);
    fImageButton.setText(Messages.ProfilesManagerDialog_12);
    fImageButton.setEnabled(false);
    GridDataFactory.create(GridData.FILL_HORIZONTAL).applyTo(fImageButton);
    // Create sub-menu for Image button
    MenuManager menuManager = new MenuManager();
    menuManager.add(fActionChooseImage);
    menuManager.add(fActionClearImage);
    Menu menu = menuManager.createContextMenu(fImageButton.getShell());
    // Image Button is clicked...
    fImageButton.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(SelectionEvent e) {
            // Display sub menu below button
            Rectangle buttonBounds = fImageButton.getBounds();
            menu.setLocation(fImageButton.getParent().toDisplay(buttonBounds.x - 0, buttonBounds.y + buttonBounds.height));
            menu.setVisible(true);
        }
    });
    fImagePreview = new Canvas(client, SWT.BORDER);
    GridDataFactory.create(SWT.NONE).hint(IMAGE_SIZE, IMAGE_SIZE).applyTo(fImagePreview);
    fImagePreview.addPaintListener(new PaintListener() {

        @Override
        public void paintControl(PaintEvent e) {
            if (fPreviewImage != null) {
                e.gc.setAntialias(SWT.ON);
                e.gc.setInterpolation(SWT.HIGH);
                Rectangle imageBounds = fPreviewImage.getBounds();
                Rectangle newSize = ImageFactory.getScaledImageSize(fPreviewImage, IMAGE_SIZE);
                // Centre the image
                int x = (IMAGE_SIZE - newSize.width) / 2;
                int y = (IMAGE_SIZE - newSize.height) / 2;
                e.gc.drawImage(fPreviewImage, 0, 0, imageBounds.width, imageBounds.height, x, y, newSize.width, newSize.height);
            }
        }
    });
    fImagePreview.addListener(SWT.MouseDoubleClick, new Listener() {

        @Override
        public void handleEvent(Event event) {
            if (fActionChooseImage.isEnabled()) {
                chooseImage();
            }
        }
    });
    fImagePreview.addDisposeListener((e) -> {
        disposePreviewImage();
    });
}

Example 40 with Canvas

use of org.eclipse.swt.widgets.Canvas in project archi by archimatetool.

the class IconSection method createControls.

@Override
protected void createControls(Composite parent) {
    createLabel(parent, Messages.IconSection_9, ITabbedLayoutConstants.STANDARD_LABEL_WIDTH, SWT.NONE);
    fCanvas = new Canvas(parent, SWT.BORDER);
    getWidgetFactory().adapt(fCanvas);
    GridData gd = new GridData(SWT.NONE, SWT.NONE, false, false);
    gd.widthHint = IMAGE_SIZE;
    gd.heightHint = IMAGE_SIZE;
    fCanvas.setLayoutData(gd);
    GridLayout layout = new GridLayout();
    layout.marginWidth = 0;
    layout.marginHeight = 0;
    fCanvas.setLayout(layout);
    fCanvas.addDisposeListener(new DisposeListener() {

        @Override
        public void widgetDisposed(DisposeEvent e) {
            disposeImage();
        }
    });
    fCanvas.addListener(SWT.MouseDoubleClick, new Listener() {

        @Override
        public void handleEvent(Event event) {
            if (fImageButton.isEnabled()) {
                chooseImage();
            }
        }
    });
    fCanvas.addPaintListener(new PaintListener() {

        @Override
        public void paintControl(PaintEvent e) {
            if (fImage != null) {
                e.gc.setAntialias(SWT.ON);
                e.gc.setInterpolation(SWT.HIGH);
                Rectangle imageBounds = fImage.getBounds();
                Rectangle newSize = ImageFactory.getScaledImageSize(fImage, IMAGE_SIZE);
                // Centre the image
                int x = (IMAGE_SIZE - newSize.width) / 2;
                int y = (IMAGE_SIZE - newSize.height) / 2;
                e.gc.drawImage(fImage, 0, 0, imageBounds.width, imageBounds.height, x, y, newSize.width, newSize.height);
            }
        }
    });
    String tooltip = Messages.IconSection_10;
    fCanvas.setToolTipText(tooltip);
    DropTarget target = new DropTarget(fCanvas, DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_DEFAULT);
    target.setTransfer(new Transfer[] { FileTransfer.getInstance() });
    target.addDropListener(new DropTargetAdapter() {

        @Override
        public void drop(DropTargetEvent event) {
            if (event.data instanceof String[] && fImageButton.isEnabled()) {
                File file = new File(((String[]) event.data)[0]);
                setImage(file);
            }
        }
    });
    // Image Button
    createImageButton(parent);
    // Position
    createLabel(parent, Messages.IconSection_11, ITabbedLayoutConstants.STANDARD_LABEL_WIDTH, SWT.CENTER);
    fComboPosition = new Combo(parent, SWT.READ_ONLY);
    fComboPosition.setItems(fComboPositionItems);
    getWidgetFactory().adapt(fComboPosition, true, true);
    gd = new GridData(SWT.NONE, SWT.NONE, false, false);
    fComboPosition.setLayoutData(gd);
    fComboPosition.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(SelectionEvent e) {
            CompoundCommand result = new CompoundCommand();
            for (EObject iconic : getEObjects()) {
                if (isAlive(iconic)) {
                    Command cmd = new EObjectFeatureCommand(Messages.IconSection_12, iconic, IArchimatePackage.Literals.ICONIC__IMAGE_POSITION, fComboPosition.getSelectionIndex());
                    if (cmd.canExecute()) {
                        result.add(cmd);
                    }
                }
            }
            executeCommand(result.unwrap());
        }
    });
    // Help
    PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, HELP_ID);
}