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

Example 31 with Canvas

use of org.eclipse.swt.widgets.Canvas in project dbeaver by dbeaver.

the class EmptyPresentation method createPresentation.

@Override
public void createPresentation(@NotNull final IResultSetController controller, @NotNull Composite parent) {
    super.createPresentation(controller, parent);
    UIUtils.createHorizontalLine(parent);
    placeholder = new Canvas(parent, SWT.NONE);
    placeholder.setLayoutData(new GridData(GridData.FILL_BOTH));
    placeholder.setBackground(controller.getDefaultBackground());
    final Font normalFont = parent.getFont();
    FontData[] fontData = normalFont.getFontData();
    fontData[0].setStyle(fontData[0].getStyle() | SWT.BOLD);
    fontData[0].setHeight(18);
    final Font largeFont = new Font(normalFont.getDevice(), fontData[0]);
    placeholder.addDisposeListener(e -> UIUtils.dispose(largeFont));
    placeholder.addPaintListener(e -> {
        if (controller.isRefreshInProgress()) {
            return;
        }
        e.gc.setFont(largeFont);
        e.gc.setForeground(UIStyles.getDefaultTextForeground());
        // int fontSize = largeFont.getFontData()[0].getHeight();
        String emptyDataMessage = controller.getDecorator().getEmptyDataMessage();
        if (!CommonUtils.isEmpty(emptyDataMessage)) {
            Point emSize = e.gc.textExtent(emptyDataMessage);
            UIUtils.drawMessageOverControl(placeholder, e, emptyDataMessage, -emSize.y);
        }
        e.gc.setFont(normalFont);
        String emptyDataDescription = controller.getDecorator().getEmptyDataDescription();
        if (!CommonUtils.isEmpty(emptyDataDescription)) {
            UIUtils.drawMessageOverControl(placeholder, e, emptyDataDescription, 10);
        }
    });
    trackPresentationControl();
}

Example 32 with Canvas

use of org.eclipse.swt.widgets.Canvas in project nebula.widgets.nattable by eclipse.

the class NatCombo method createTextControl.

/**
 * Creates the Text control of this NatCombo, adding styles, look&feel
 * and needed listeners for the control only.
 *
 * @param style
 *            The style for the Text Control to construct. Uses this style
 *            adding internal styles via ConfigRegistry.
 */
protected void createTextControl(int style) {
    int widgetStyle = style | HorizontalAlignmentEnum.getSWTStyle(this.cellStyle);
    this.text = new Text(this, widgetStyle);
    this.text.setBackground(this.cellStyle.getAttributeValue(CellStyleAttributes.BACKGROUND_COLOR));
    this.text.setForeground(this.cellStyle.getAttributeValue(CellStyleAttributes.FOREGROUND_COLOR));
    this.text.setFont(this.cellStyle.getAttributeValue(CellStyleAttributes.FONT));
    GridData gridData = new GridData(SWT.FILL, SWT.FILL, true, true);
    this.text.setLayoutData(gridData);
    this.text.addKeyListener(new KeyAdapter() {

        @Override
        public void keyPressed(KeyEvent event) {
            if (event.keyCode == SWT.ARROW_DOWN || event.keyCode == SWT.ARROW_UP) {
                showDropdownControl();
                int selectionIndex = getDropdownTable().getSelectionIndex();
                if (selectionIndex < 0) {
                    select(0);
                } else {
                    // only visualize the selection in the dropdown, do not
                    // perform a selection
                    getDropdownTable().select(selectionIndex);
                }
                // ensure the arrow key events do not have any further
                // effect
                event.doit = false;
            } else if (!LetterOrDigitKeyEventMatcher.isLetterOrDigit(event.character)) {
                if (NatCombo.this.freeEdit) {
                    // free value in text control will be used
                    if (!getDropdownTable().isDisposed()) {
                        getDropdownTable().deselectAll();
                        for (Map.Entry<String, Boolean> entry : NatCombo.this.selectionStateMap.entrySet()) {
                            entry.setValue(Boolean.FALSE);
                        }
                    }
                } else {
                    showDropdownControl();
                }
            }
        }
    });
    this.text.addMouseListener(new MouseAdapter() {

        @Override
        public void mouseDown(MouseEvent e) {
            if (!NatCombo.this.freeEdit) {
                if (getDropdownTable().isDisposed() || !getDropdownTable().isVisible()) {
                    showDropdownControl();
                } else {
                    // if there is no free edit enabled, set the focus back
                    // to the dropdownlist so it handles key strokes itself
                    getDropdownTable().forceFocus();
                }
            }
        }
    });
    this.text.addControlListener(new ControlListener() {

        @Override
        public void controlResized(ControlEvent e) {
            calculateBounds();
        }

        @Override
        public void controlMoved(ControlEvent e) {
            calculateBounds();
        }
    });
    this.text.addFocusListener(new FocusListenerWrapper());
    final Canvas iconCanvas = new Canvas(this, SWT.NONE) {

        @Override
        public Point computeSize(int wHint, int hHint, boolean changed) {
            Rectangle iconImageBounds = NatCombo.this.iconImage.getBounds();
            return new Point(iconImageBounds.width + 2, iconImageBounds.height + 2);
        }
    };
    gridData = new GridData(GridData.BEGINNING, SWT.FILL, false, true);
    iconCanvas.setLayoutData(gridData);
    iconCanvas.addPaintListener(new PaintListener() {

        @Override
        public void paintControl(PaintEvent event) {
            GC gc = event.gc;
            Rectangle iconCanvasBounds = iconCanvas.getBounds();
            Rectangle iconImageBounds = NatCombo.this.iconImage.getBounds();
            int horizontalAlignmentPadding = CellStyleUtil.getHorizontalAlignmentPadding(HorizontalAlignmentEnum.CENTER, iconCanvasBounds, iconImageBounds.width);
            int verticalAlignmentPadding = CellStyleUtil.getVerticalAlignmentPadding(VerticalAlignmentEnum.MIDDLE, iconCanvasBounds, iconImageBounds.height);
            gc.drawImage(NatCombo.this.iconImage, horizontalAlignmentPadding, verticalAlignmentPadding);
            Color originalFg = gc.getForeground();
            gc.setForeground(GUIHelper.COLOR_WIDGET_BORDER);
            gc.drawRectangle(0, 0, iconCanvasBounds.width - 1, iconCanvasBounds.height - 1);
            gc.setForeground(originalFg);
        }
    });
    iconCanvas.addMouseListener(new MouseAdapter() {

        @Override
        public void mouseDown(MouseEvent e) {
            if (NatCombo.this.dropdownShell != null && !NatCombo.this.dropdownShell.isDisposed()) {
                if (NatCombo.this.dropdownShell.isVisible()) {
                    NatCombo.this.text.forceFocus();
                    hideDropdownControl();
                } else {
                    showDropdownControl();
                }
            } else {
                showDropdownControl();
            }
        }
    });
}

Example 33 with Canvas

use of org.eclipse.swt.widgets.Canvas in project jbosstools-hibernate by jbosstools.

the class DiagramContentOutlinePage method createControl.

/**
 * @see org.eclipse.ui.part.IPage#createControl(org.eclipse.swt.widgets.Composite)
 */
public void createControl(Composite parent) {
    pageBook = new PageBook(parent, SWT.NONE);
    outline = getViewer().createControl(pageBook);
    overview = new Canvas(pageBook, SWT.NONE);
    pageBook.showPage(outline);
    configureOutlineViewer();
    hookOutlineViewer();
    initializeOutlineViewer();
}

Example 34 with Canvas

use of org.eclipse.swt.widgets.Canvas in project core by jcryptool.

the class NewKeyComposite method initGUI.

private void initGUI() {
    try {
        GridLayout thisLayout = new GridLayout();
        thisLayout.numColumns = 3;
        this.setLayout(thisLayout);
        // this.setSize(396, 100);
        {
            GridData canvas1LData = new GridData();
            canvas1LData.widthHint = 48;
            canvas1LData.heightHint = 48;
            canvas1 = new Canvas(this, SWT.NONE);
            canvas1.setLayoutData(canvas1LData);
            canvas1.addPaintListener(new PaintListener() {

                ImageDescriptor imgDescriptor = getKeyImageDescriptor();

                public void paintControl(PaintEvent e) {
                    // $NON-NLS-1$
                    e.gc.drawImage(imgDescriptor.createImage(), 0, 0);
                }
            });
        }
        {
            infoComposite = new Composite(this, SWT.NONE);
            GridLayout infoCompositeLayout = new GridLayout();
            infoCompositeLayout.makeColumnsEqualWidth = true;
            infoCompositeLayout.verticalSpacing = 1;
            infoCompositeLayout.marginHeight = 0;
            GridData infoCompositeLData = new GridData();
            infoCompositeLData.grabExcessHorizontalSpace = true;
            infoCompositeLData.grabExcessVerticalSpace = true;
            infoCompositeLData.horizontalAlignment = GridData.FILL;
            infoCompositeLData.verticalAlignment = GridData.CENTER;
            infoComposite.setLayoutData(infoCompositeLData);
            infoComposite.setLayout(infoCompositeLayout);
            {
                labelInfo1 = new Label(infoComposite, SWT.NONE);
                GridData labelInfo1LData = new GridData();
                labelInfo1LData.grabExcessHorizontalSpace = true;
                labelInfo1LData.horizontalAlignment = GridData.FILL;
                labelInfo1.setLayoutData(labelInfo1LData);
                // $NON-NLS-1$
                setInfoLabelText();
                // $NON-NLS-1$
                labelInfo1.setFont(SWTResourceManager.getFont("Segoe UI", 9, 1, false, false));
            }
            {
                labelOwner = new Label(infoComposite, SWT.NONE);
                GridData labelOwnerLData = new GridData();
                labelOwner.setLayoutData(labelOwnerLData);
                // $NON-NLS-1$
                labelOwner.setText(Messages.getString("NewKeyComposite.owner") + publicKeyAlias.getContactName());
            }
            {
                labelType = new Label(infoComposite, SWT.NONE);
                GridData labelTypeLData = new GridData();
                labelType.setLayoutData(labelTypeLData);
                labelType.setText(publicKeyAlias.getOperation());
            }
        }
        {
            GridData buttonDeleteLData = new GridData();
            buttonDeleteLData.widthHint = 24;
            buttonDeleteLData.heightHint = 24;
            buttonDeleteLData.grabExcessVerticalSpace = true;
            buttonDeleteLData.verticalAlignment = SWT.FILL;
            buttonDelete = new Button(this, SWT.PUSH | SWT.CENTER);
            buttonDelete.setLayoutData(buttonDeleteLData);
            // $NON-NLS-1$
            buttonDelete.setImage(KeyStorePlugin.getImageDescriptor("icons/16x16/cancel.png").createImage());
            // $NON-NLS-1$
            buttonDelete.setToolTipText(Messages.getString("NewKeyComposite.removeKeypairBtn"));
            buttonDelete.addSelectionListener(new SelectionAdapter() {

                @Override
                public void widgetSelected(SelectionEvent e) {
                    removeKeyFromKeystore();
                }
            });
        }
        this.layout();
    } catch (Exception ex) {
        LogUtil.logError(IntegratorPlugin.PLUGIN_ID, ex);
    }
}

Example 35 with Canvas

use of org.eclipse.swt.widgets.Canvas in project tmdm-studio-se by Talend.

the class SWTResourceManager method fixCoolBarSize.

// ////////////////////////////
// CoolBar support
// ////////////////////////////
/**
 * Fix the layout of the specified CoolBar
 * @param bar CoolBar The CoolBar that shgoud be fixed
 */
public static void fixCoolBarSize(CoolBar bar) {
    CoolItem[] items = bar.getItems();
    // ensure that each item has control (at least empty one)
    for (int i = 0; i < items.length; i++) {
        CoolItem item = items[i];
        if (item.getControl() == null)
            item.setControl(new Canvas(bar, SWT.NONE) {

                public Point computeSize(int wHint, int hHint, boolean changed) {
                    return new Point(20, 20);
                }
            });
    }
    // compute size for each item
    for (int i = 0; i < items.length; i++) {
        CoolItem item = items[i];
        Control control = item.getControl();
        control.pack();
        Point size = control.getSize();
        item.setSize(item.computeSize(size.x, size.y));
    }
}