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

Example 21 with ControlEvent

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

the class AbstractTemplatesPage method createTemplateTree.

/**
 * Create the tree to display templates.
 *
 * @param parent the parent composite
 */
private void createTemplateTree(Composite parent) {
    Composite treeComposite = new Composite(parent, SWT.NONE);
    GridData data = new GridData(GridData.FILL_BOTH);
    treeComposite.setLayoutData(data);
    TreeColumnLayout columnLayout = new TreeColumnLayout();
    treeComposite.setLayout(columnLayout);
    fTemplatesTree = new Tree(treeComposite, SWT.H_SCROLL | SWT.V_SCROLL | SWT.MULTI | SWT.FULL_SELECTION);
    fTemplatesTree.setHeaderVisible(true);
    fTemplatesTree.setLinesVisible(true);
    PixelConverter pixelConverter = new PixelConverter(fTemplatesTree);
    TreeColumn columnName = new TreeColumn(fTemplatesTree, SWT.NONE);
    columnName.setText(TemplatesMessages.TemplatesPage_column_name);
    int minWidth = fPreferenceStore.getInt(COLUMN_NAME_WIDTH_PREF_ID);
    if (minWidth == 0) {
        minWidth = pixelConverter.convertWidthInCharsToPixels(30);
    }
    columnLayout.setColumnData(columnName, new ColumnPixelData(minWidth, true));
    columnName.addControlListener(new ControlListener() {

        @Override
        public void controlMoved(ControlEvent e) {
        }

        @Override
        public void controlResized(ControlEvent e) {
            int nameWidth = ((TreeColumn) e.getSource()).getWidth();
            fPreferenceStore.setValue(COLUMN_NAME_WIDTH_PREF_ID, nameWidth);
        }
    });
    TreeColumn columnDescription = new TreeColumn(fTemplatesTree, SWT.NONE);
    columnDescription.setText(TemplatesMessages.TemplatesPage_column_description);
    minWidth = fPreferenceStore.getInt(COLUMN_DESCRIPTION_WIDTH_PREF_ID);
    if (minWidth == 0) {
        minWidth = pixelConverter.convertWidthInCharsToPixels(45);
    }
    columnLayout.setColumnData(columnDescription, new ColumnPixelData(minWidth, false));
    columnDescription.addControlListener(new ControlListener() {

        @Override
        public void controlMoved(ControlEvent e) {
        }

        @Override
        public void controlResized(ControlEvent e) {
            int descriptionWidth = ((TreeColumn) e.getSource()).getWidth();
            fPreferenceStore.setValue(COLUMN_DESCRIPTION_WIDTH_PREF_ID, descriptionWidth);
        }
    });
    createTreeViewer(fTemplatesTree);
}

Example 22 with ControlEvent

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

the class AnnotationRulerColumn method createControl.

@Override
public Control createControl(CompositeRuler parentRuler, Composite parentControl) {
    fParentRuler = parentRuler;
    fCachedTextViewer = parentRuler.getTextViewer();
    fCachedTextWidget = fCachedTextViewer.getTextWidget();
    fHitDetectionCursor = parentControl.getDisplay().getSystemCursor(SWT.CURSOR_HAND);
    fCanvas = createCanvas(parentControl);
    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;
        }
    });
    fMouseListener = new MouseListener() {

        @Override
        public void mouseUp(MouseEvent event) {
            int lineNumber;
            if (isPropagatingMouseListener()) {
                fParentRuler.setLocationOfLastMouseButtonActivity(event.x, event.y);
                lineNumber = fParentRuler.getLineOfLastMouseButtonActivity();
            } else
                lineNumber = fParentRuler.toDocumentLineNumber(event.y);
            if (1 == event.button)
                mouseClicked(lineNumber);
        }

        @Override
        public void mouseDown(MouseEvent event) {
            int lineNumber;
            if (isPropagatingMouseListener()) {
                fParentRuler.setLocationOfLastMouseButtonActivity(event.x, event.y);
                lineNumber = fParentRuler.getLineOfLastMouseButtonActivity();
            } else
                lineNumber = fParentRuler.toDocumentLineNumber(event.y);
            if (1 == event.button)
                AnnotationRulerColumn.this.mouseDown(lineNumber);
        }

        @Override
        public void mouseDoubleClick(MouseEvent event) {
            int lineNumber;
            if (isPropagatingMouseListener()) {
                fParentRuler.setLocationOfLastMouseButtonActivity(event.x, event.y);
                lineNumber = fParentRuler.getLineOfLastMouseButtonActivity();
            } else
                lineNumber = fParentRuler.toDocumentLineNumber(event.y);
            if (1 == event.button)
                mouseDoubleClicked(lineNumber);
        }
    };
    fCanvas.addMouseListener(fMouseListener);
    fCanvas.addMouseMoveListener(new MouseMoveListener() {

        @Override
        public void mouseMove(MouseEvent e) {
            handleMouseMove(e);
        }
    });
    fCanvas.addMouseWheelListener(new MouseWheelListener() {

        @Override
        public void mouseScrolled(MouseEvent e) {
            handleMouseScrolled(e);
        }
    });
    if (fCachedTextViewer != null) {
        VisibleLinesTracker.track(fCachedTextViewer, lineHeightChangeHandler);
        fCachedTextViewer.addTextListener(fLineListener);
        // on word wrap toggle a "resized" ControlEvent is fired: suggest a redraw of the ruler
        fCachedTextWidget.addControlListener(new ControlAdapter() {

            @Override
            public void controlResized(ControlEvent e) {
                if (fCachedTextWidget != null && fCachedTextWidget.getWordWrap()) {
                    redraw();
                }
            }
        });
    }
    return fCanvas;
}

Example 23 with ControlEvent

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

the class LineNumberRulerColumn method createControl.

@Override
public Control createControl(CompositeRuler parentRuler, Composite parentControl) {
    fParentRuler = parentRuler;
    fCachedTextViewer = parentRuler.getTextViewer();
    fCachedTextWidget = fCachedTextViewer.getTextWidget();
    // on word wrap toggle a "resized" ControlEvent is fired: suggest a redraw of the line ruler
    fCachedTextWidget.addControlListener(new ControlAdapter() {

        @Override
        public void controlResized(ControlEvent e) {
            if (fCachedTextWidget != null && fCachedTextWidget.getWordWrap()) {
                postRedraw();
            }
        }
    });
    // track when StyledText is redrawn to check if some line height changed. In this case, the ruler must be redrawn
    // to draw line number with well height.
    VisibleLinesTracker.track(fCachedTextViewer, lineHeightChangeHandler);
    fCanvas = new Canvas(parentControl, SWT.NO_FOCUS) {

        @Override
        public void addMouseListener(MouseListener listener) {
            // see bug 40889, bug 230073 and AnnotationRulerColumn#isPropagatingMouseListener()
            if (listener == fMouseHandler)
                super.addMouseListener(listener);
            else {
                TypedListener typedListener = null;
                if (listener != null)
                    typedListener = new TypedListener(listener);
                addListener(SWT.MouseDoubleClick, typedListener);
            }
        }
    };
    fCanvas.setBackground(getBackground(fCanvas.getDisplay()));
    fCanvas.setForeground(fForeground);
    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;
        }
    });
    fMouseHandler = new MouseHandler();
    fCanvas.addMouseListener(fMouseHandler);
    fCanvas.addMouseMoveListener(fMouseHandler);
    fCanvas.addMouseWheelListener(fMouseHandler);
    if (fCachedTextViewer != null) {
        VisibleLinesTracker.track(fCachedTextViewer, lineHeightChangeHandler);
        fCachedTextViewer.addTextListener(fInternalListener);
        if (fFont == null) {
            if (fCachedTextWidget != null && !fCachedTextWidget.isDisposed())
                fFont = fCachedTextWidget.getFont();
        }
    }
    if (fFont != null)
        fCanvas.setFont(fFont);
    updateNumberOfDigits();
    computeIndentations();
    return fCanvas;
}

Example 24 with ControlEvent

use of org.eclipse.swt.events.ControlEvent in project eclipse.platform.swt by eclipse.

the class MJ_Table method cout_visible_items_Snippet253.

@Test
public void cout_visible_items_Snippet253() {
    final Shell shell = mkShell("Ensure correct item count is displayed in count. Try resizing shell to show 15 items, it should show 15. Gtk3 issues");
    knownToBeBrokenGtk3("On gtk3, the measure is off, see bug 531884");
    FillLayout layout = new FillLayout(SWT.VERTICAL);
    shell.setLayout(layout);
    final Table table = new Table(shell, SWT.NONE);
    for (int i = 0; i < 32; i++) {
        TableItem item = new TableItem(table, SWT.NONE);
        item.setText("Item " + (i + 1) + " is quite long");
    }
    final Button button = new Button(shell, SWT.PUSH);
    Runnable fixCount = () -> {
        Rectangle rect = table.getClientArea();
        int itemHeight = table.getItemHeight();
        int headerHeight = table.getHeaderHeight();
        int visibleCount = (rect.height - headerHeight + itemHeight - 1) / itemHeight;
        button.setText("Visible Items [" + visibleCount + "]");
    };
    button.setText("Visible Items []");
    button.addListener(SWT.Selection, e -> {
        fixCount.run();
    });
    shell.addControlListener(new ControlAdapter() {

        @Override
        public void controlResized(ControlEvent e) {
            fixCount.run();
        }
    });
    shell.addShellListener(new ShellAdapter() {

        @Override
        public void shellActivated(ShellEvent e) {
            fixCount.run();
        }
    });
    // setSize(..)_ affects bug/snippet behaviour.
    // 820 => ~15 items or so, depending on your theme.
    shell.setSize(1160, 820);
    shell.open();
    mainLoop(shell);
}

Example 25 with ControlEvent

use of org.eclipse.swt.events.ControlEvent in project yamcs-studio by yamcs.

the class ClientsTableViewer method addFixedColumns.

private void addFixedColumns() {
    TableViewerColumn idColumn = new TableViewerColumn(this, SWT.CENTER);
    idColumn.getColumn().setText(COL_ID);
    idColumn.getColumn().setWidth(30);
    idColumn.setLabelProvider(new ColumnLabelProvider() {

        @Override
        public String getText(Object element) {
            ClientInfo client = (ClientInfo) element;
            return String.valueOf(client.getId());
        }
    });
    TableViewerColumn userColumn = new TableViewerColumn(this, SWT.LEFT);
    userColumn.getColumn().setText(COL_USER);
    userColumn.getColumn().setWidth(100);
    userColumn.setLabelProvider(new ColumnLabelProvider() {

        @Override
        public String getText(Object element) {
            ClientInfo client = (ClientInfo) element;
            return String.valueOf(client.getUsername());
        }
    });
    TableViewerColumn applicationColumn = new TableViewerColumn(this, SWT.LEFT);
    applicationColumn.getColumn().setText(COL_APPLICATION);
    applicationColumn.getColumn().setWidth(100);
    applicationColumn.setLabelProvider(new ColumnLabelProvider() {

        @Override
        public String getText(Object element) {
            ClientInfo client = (ClientInfo) element;
            return client.getApplicationName();
        }
    });
    TableViewerColumn instanceColumn = new TableViewerColumn(this, SWT.LEFT);
    instanceColumn.getColumn().setText(COL_INSTANCE);
    instanceColumn.getColumn().setWidth(100);
    instanceColumn.setLabelProvider(new ColumnLabelProvider() {

        @Override
        public String getText(Object element) {
            ClientInfo client = (ClientInfo) element;
            return client.getInstance();
        }
    });
    TableViewerColumn processorColumn = new TableViewerColumn(this, SWT.LEFT);
    processorColumn.getColumn().setText(COL_PROCESSOR);
    processorColumn.getColumn().setWidth(100);
    processorColumn.setLabelProvider(new ColumnLabelProvider() {

        @Override
        public String getText(Object element) {
            ClientInfo client = (ClientInfo) element;
            return client.getProcessorName();
        }
    });
    // prevent resize to 0
    for (TableColumn column : getTable().getColumns()) {
        column.addControlListener(new ControlListener() {

            @Override
            public void controlMoved(ControlEvent e) {
            }

            @Override
            public void controlResized(ControlEvent e) {
                if (column.getWidth() < 5) {
                    column.setWidth(5);
                }
            }
        });
    }
}