Examples with PaintListener org.eclipse.swt.events.PaintListener used on opensource projects

Example 56 with PaintListener

use of org.eclipse.swt.events.PaintListener in project eclipse.platform.text by eclipse.

the class VerticalRuler method createControl.

@Override
public Control createControl(Composite parent, ITextViewer textViewer) {
    fTextViewer = textViewer;
    fCanvas = new Canvas(parent, SWT.NO_BACKGROUND);
    fCanvas.addPaintListener(new PaintListener() {

        @Override
        public void paintControl(PaintEvent event) {
            if (fTextViewer != null)
                doubleBufferPaint(event.gc);
        }
    });
    fCanvas.addDisposeListener(new DisposeListener() {

        @Override
        public void widgetDisposed(DisposeEvent e) {
            handleDispose();
            fTextViewer = null;
        }
    });
    fCanvas.addMouseListener(new MouseListener() {

        @Override
        public void mouseUp(MouseEvent event) {
        }

        @Override
        public void mouseDown(MouseEvent event) {
            fLastMouseButtonActivityLine = toDocumentLineNumber(event.y);
        }

        @Override
        public void mouseDoubleClick(MouseEvent event) {
            fLastMouseButtonActivityLine = toDocumentLineNumber(event.y);
        }
    });
    if (fTextViewer != null) {
        fTextViewer.addViewportListener(fInternalListener);
        fTextViewer.addTextListener(fInternalListener);
    }
    return fCanvas;
}

Example 57 with PaintListener

use of org.eclipse.swt.events.PaintListener in project eclipse.platform.text by eclipse.

the class AbstractInformationControl method addResizeSupportIfNecessary.

private void addResizeSupportIfNecessary(final Composite bars) {
    // XXX: workarounds for
    // - https://bugs.eclipse.org/bugs/show_bug.cgi?id=219139 : API to add resize grip / grow box in lower right corner of shell
    // - https://bugs.eclipse.org/bugs/show_bug.cgi?id=23980 : platform specific shell resize behavior
    String platform = SWT.getPlatform();
    // $NON-NLS-1$
    final boolean isWin = platform.equals("win32");
    if (// $NON-NLS-1$
    !isWin && !platform.equals("gtk"))
        return;
    final Canvas resizer = new Canvas(bars, SWT.NONE);
    int size = getResizeHandleSize(bars);
    GridData data = new GridData(SWT.END, SWT.END, false, true);
    data.widthHint = size;
    data.heightHint = size;
    resizer.setLayoutData(data);
    resizer.addPaintListener(new PaintListener() {

        @Override
        public void paintControl(PaintEvent e) {
            Point s = resizer.getSize();
            int x = s.x - 2;
            int y = s.y - 2;
            int min = Math.min(x, y);
            if (isWin) {
                // draw dots
                e.gc.setBackground(resizer.getDisplay().getSystemColor(SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW));
                int end = min - 1;
                for (int i = 0; i <= 2; i++) for (int j = 0; j <= 2 - i; j++) e.gc.fillRectangle(end - 4 * i, end - 4 * j, 2, 2);
                end--;
                e.gc.setBackground(resizer.getDisplay().getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW));
                for (int i = 0; i <= 2; i++) for (int j = 0; j <= 2 - i; j++) e.gc.fillRectangle(end - 4 * i, end - 4 * j, 2, 2);
            } else {
                // draw diagonal lines
                e.gc.setForeground(resizer.getDisplay().getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW));
                for (int i = 1; i < min; i += 4) {
                    e.gc.drawLine(i, y, x, i);
                }
                e.gc.setForeground(resizer.getDisplay().getSystemColor(SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW));
                for (int i = 2; i < min; i += 4) {
                    e.gc.drawLine(i, y, x, i);
                }
            }
        }
    });
    final boolean isRTL = (resizer.getShell().getStyle() & SWT.RIGHT_TO_LEFT) != 0;
    resizer.setCursor(resizer.getDisplay().getSystemCursor(isRTL ? SWT.CURSOR_SIZESW : SWT.CURSOR_SIZESE));
    MouseAdapter resizeSupport = new MouseAdapter() {

        private MouseMoveListener fResizeListener;

        @Override
        public void mouseDown(MouseEvent e) {
            Rectangle shellBounds = fShell.getBounds();
            final int shellX = shellBounds.x;
            final int shellY = shellBounds.y;
            final int shellWidth = shellBounds.width;
            final int shellHeight = shellBounds.height;
            Point mouseLoc = resizer.toDisplay(e.x, e.y);
            final int mouseX = mouseLoc.x;
            final int mouseY = mouseLoc.y;
            fResizeListener = new MouseMoveListener() {

                @Override
                public void mouseMove(MouseEvent e2) {
                    Point mouseLoc2 = resizer.toDisplay(e2.x, e2.y);
                    int dx = mouseLoc2.x - mouseX;
                    int dy = mouseLoc2.y - mouseY;
                    if (isRTL) {
                        setLocation(new Point(shellX + dx, shellY));
                        setSize(shellWidth - dx, shellHeight + dy);
                    } else {
                        setSize(shellWidth + dx, shellHeight + dy);
                    }
                }
            };
            resizer.addMouseMoveListener(fResizeListener);
        }

        @Override
        public void mouseUp(MouseEvent e) {
            resizer.removeMouseMoveListener(fResizeListener);
            fResizeListener = null;
        }
    };
    resizer.addMouseListener(resizeSupport);
}

Example 58 with PaintListener

use of org.eclipse.swt.events.PaintListener in project eclipse.platform.text by eclipse.

the class ChangeRulerColumn method createControl.

@Override
public Control createControl(CompositeRuler parentRuler, Composite parentControl) {
    fParentRuler = parentRuler;
    fCachedTextViewer = parentRuler.getTextViewer();
    fCachedTextWidget = fCachedTextViewer.getTextWidget();
    fCanvas = new Canvas(parentControl, SWT.NONE);
    fCanvas.setBackground(getBackground());
    fCanvas.addPaintListener(new PaintListener() {

        @Override
        public void paintControl(PaintEvent event) {
            if (fCachedTextViewer != null)
                doubleBufferPaint(event.gc);
        }
    });
    fCanvas.addDisposeListener(new DisposeListener() {

        @Override
        public void widgetDisposed(DisposeEvent e) {
            handleDispose();
            fCachedTextViewer = null;
            fCachedTextWidget = null;
        }
    });
    fCanvas.addMouseListener(fMouseHandler);
    fCanvas.addMouseMoveListener(fMouseHandler);
    if (fCachedTextViewer != null) {
        fCachedTextViewer.addViewportListener(fInternalListener);
        fCachedTextViewer.addTextListener(fInternalListener);
    }
    fRevisionPainter.setParentRuler(parentRuler);
    fDiffPainter.setParentRuler(parentRuler);
    return fCanvas;
}

Example 59 with PaintListener

use of org.eclipse.swt.events.PaintListener in project knime-core by knime.

the class ConfigureMetaNodePortsPage method createPreviewPanel.

private void createPreviewPanel(final Composite parent) {
    m_previewPanel = new Composite(parent, SWT.FILL | SWT.BORDER);
    m_previewPanel.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_CENTER | GridData.VERTICAL_ALIGN_CENTER));
    m_previewPanel.setLayout(new FillLayout());
    m_previewPanel.addPaintListener(new PaintListener() {

        private static final int IMAGE_HEIGHT = 30;

        private static final int IMAGE_WIDTH = 30;

        private static final int PORT_BAR_HEIGHT = 40;

        private final int PORT_SIZE = AbstractPortFigure.getPortSizeNode();

        private int m_top;

        @Override
        public void paintControl(final PaintEvent e) {
            GC gc = e.gc;
            Rectangle bounds = m_previewPanel.getBounds();
            m_top = (bounds.height / 2) - (IMAGE_HEIGHT / 2) - (PORT_SIZE / 2);
            drawInPorts(gc);
            drawOutPorts(gc);
            gc.drawImage(ImageRepository.getImage(KNIMEEditorPlugin.PLUGIN_ID, "/icons/meta/meta_custom_preview.png"), (bounds.width / 2) - (IMAGE_WIDTH / 2), (bounds.height / 2) - (IMAGE_HEIGHT / 2));
        }

        private void drawInPorts(final GC gc) {
            Rectangle b = m_previewPanel.getBounds();
            int offset = (PORT_BAR_HEIGHT + PORT_SIZE) / (m_inPortList.size() + 1);
            int left = (b.width / 2) - (IMAGE_WIDTH / 2);
            int i = 0;
            for (MetaPortInfo inPort : m_inPortList) {
                int y = m_top + (((i + 1) * offset) - (PORT_SIZE));
                if (inPort.getType().equals(BufferedDataTable.TYPE)) {
                    gc.drawPolygon(new int[] { left - PORT_SIZE, y, left, y + (PORT_SIZE / 2), left - PORT_SIZE, y + PORT_SIZE });
                } else if (PMMLPortObject.TYPE.isSuperTypeOf(inPort.getType())) {
                    gc.setBackground(ColorConstants.blue);
                    gc.fillRectangle(left - PORT_SIZE, y, PORT_SIZE, PORT_SIZE);
                } else if (inPort.getType().equals(DatabasePortObject.TYPE)) {
                    gc.setBackground(getShell().getDisplay().getSystemColor(SWT.COLOR_DARK_RED));
                    gc.fillRectangle(left - PORT_SIZE, y, PORT_SIZE, PORT_SIZE);
                } else if (inPort.getType().equals(FlowVariablePortObject.TYPE)) {
                    gc.setBackground(getShell().getDisplay().getSystemColor(SWT.COLOR_RED));
                    gc.fillOval(left - PORT_SIZE - 1, y - 1, PORT_SIZE + 1, PORT_SIZE + 1);
                } else {
                    gc.setBackground(getShell().getDisplay().getSystemColor(SWT.COLOR_GRAY));
                    gc.fillRectangle(left - PORT_SIZE, y, PORT_SIZE, PORT_SIZE);
                }
                i++;
            }
        }

        private void drawOutPorts(final GC gc) {
            Rectangle b = m_previewPanel.getBounds();
            int right = (b.width / 2) + (IMAGE_WIDTH / 2) + 2;
            int offset = (PORT_BAR_HEIGHT + PORT_SIZE) / (m_outPortList.size() + 1);
            int i = 0;
            for (MetaPortInfo inPort : m_outPortList) {
                int y = m_top + (((i + 1) * offset) - (PORT_SIZE));
                if (inPort.getType().equals(BufferedDataTable.TYPE)) {
                    gc.drawPolygon(new int[] { right, y, right + PORT_SIZE, y + (PORT_SIZE / 2), right, y + PORT_SIZE });
                } else if (PMMLPortObject.TYPE.isSuperTypeOf(inPort.getType())) {
                    gc.setBackground(ColorConstants.blue);
                    gc.fillRectangle(right, y, PORT_SIZE, PORT_SIZE);
                } else if (inPort.getType().equals(DatabasePortObject.TYPE)) {
                    gc.setBackground(getShell().getDisplay().getSystemColor(SWT.COLOR_DARK_RED));
                    gc.fillRectangle(right, y, PORT_SIZE, PORT_SIZE);
                } else if (inPort.getType().equals(FlowVariablePortObject.TYPE)) {
                    gc.setBackground(getShell().getDisplay().getSystemColor(SWT.COLOR_RED));
                    gc.fillRectangle(right, y, PORT_SIZE, PORT_SIZE);
                } else {
                    gc.setBackground(getShell().getDisplay().getSystemColor(SWT.COLOR_GRAY));
                    gc.fillRectangle(right, y, PORT_SIZE, PORT_SIZE);
                }
                i++;
            }
        }
    });
}

Example 60 with PaintListener

use of org.eclipse.swt.events.PaintListener 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);
    final int canvasSize = IIconic.MAX_IMAGE_SIZE;
    fCanvas = new Canvas(parent, SWT.BORDER);
    getWidgetFactory().adapt(fCanvas);
    GridData gd = new GridData(SWT.NONE, SWT.NONE, false, false);
    gd.widthHint = canvasSize;
    gd.heightHint = canvasSize;
    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 (!isLocked(getFirstSelectedObject())) {
                chooseImage();
            }
        }
    });
    fCanvas.addPaintListener(new PaintListener() {

        @Override
        public void paintControl(PaintEvent e) {
            if (fImage != null) {
                Rectangle bounds = fImage.getBounds();
                int x = (canvasSize - bounds.width) / 2;
                int y = (canvasSize - bounds.height) / 2;
                e.gc.drawImage(fImage, x, y);
            }
        }
    });
    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[]) {
                if (!isLocked(getFirstSelectedObject())) {
                    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);
    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, ICanvasPackage.Literals.ICONIC__IMAGE_POSITION, fComboPosition.getSelectionIndex());
                    if (cmd.canExecute()) {
                        result.add(cmd);
                    }
                }
            }
            executeCommand(result.unwrap());
        }
    });
    // Help
    PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, HELP_ID);
}