Example usage for javax.swing JViewport getViewRect

Introduction

In this page you can find the example usage for javax.swing JViewport getViewRect.

Prototype

public Rectangle getViewRect() 

Source Link

Document

Returns a rectangle whose origin is getViewPosition and size is getExtentSize.

Usage

From source file:Main.java

public static void scrollToCenter(JTable table, int rowIndex, int vColIndex) {
    if (!(table.getParent() instanceof JViewport)) {
        return;/*from   w w  w . ja  v  a  2  s.  c o m*/
    }
    JViewport viewport = (JViewport) table.getParent();
    Rectangle rect = table.getCellRect(rowIndex, vColIndex, true);
    Rectangle viewRect = viewport.getViewRect();
    rect.setLocation(rect.x - viewRect.x, rect.y - viewRect.y);

    int centerX = (viewRect.width - rect.width) / 2;
    int centerY = (viewRect.height - rect.height) / 2;
    if (rect.x < centerX) {
        centerX = -centerX;
    }
    if (rect.y < centerY) {
        centerY = -centerY;
    }
    rect.translate(centerX, centerY);
    viewport.scrollRectToVisible(rect);
}

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From source file:JTableHelper.java

public static void scrollToCenter(JTable table, int rowIndex, int vColIndex) {
    if (!(table.getParent() instanceof JViewport)) {
        return;/*from   w  w  w .j  a  v a2 s .  co m*/
    }
    JViewport viewport = (JViewport) table.getParent();
    Rectangle rect = table.getCellRect(rowIndex, vColIndex, true);
    Rectangle viewRect = viewport.getViewRect();
    rect.setLocation(rect.x - viewRect.x, rect.y - viewRect.y);

    int centerX = (viewRect.width - rect.width) / 2;
    int centerY = (viewRect.height - rect.height) / 2;

    if (rect.x < centerX) {
        centerX = -centerX;
    }
    if (rect.y < centerY) {
        centerY = -centerY;
    }
    rect.translate(centerX, centerY);
    viewport.scrollRectToVisible(rect);
}

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From source file:com.igormaznitsa.sciareto.ui.editors.MMDEditor.java

@Override
public void onEnsureVisibilityOfTopic(@Nonnull final MindMapPanel source, @Nullable final Topic topic) {
    SwingUtilities.invokeLater(new Runnable() {

        @Override/*from   www.j  a  v a  2s  .  co m*/
        public void run() {
            if (topic == null) {
                return;
            }

            final AbstractElement element = (AbstractElement) topic.getPayload();
            if (element == null) {
                return;
            }

            final Rectangle2D orig = element.getBounds();
            final int GAP = 30;

            final Rectangle bounds = orig.getBounds();
            bounds.setLocation(Math.max(0, bounds.x - GAP), Math.max(0, bounds.y - GAP));
            bounds.setSize(bounds.width + GAP * 2, bounds.height + GAP * 2);

            final JViewport viewport = getViewport();
            final Rectangle visible = viewport.getViewRect();

            if (visible.contains(bounds)) {
                return;
            }

            bounds.setLocation(bounds.x - visible.x, bounds.y - visible.y);

            viewport.scrollRectToVisible(bounds);
        }

    });
}

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From source file:forge.itemmanager.views.ItemListView.java

@Override
protected void onScrollSelectionIntoView(final JViewport viewport) {
    // compute where we're going and where we are
    final Rectangle targetRect = this.table.getCellRect(this.getSelectedIndex(), 0, true);
    final Rectangle curViewRect = viewport.getViewRect();

    // if the target cell is not visible, attempt to jump to a location where it is
    // visible but not on the edge of the viewport
    if (targetRect.y + targetRect.height > curViewRect.y + curViewRect.height) {
        // target is below us, move to position 3 rows below target
        targetRect.setLocation(targetRect.x, targetRect.y + (targetRect.height * 3));
    } else if (targetRect.y < curViewRect.y) {
        // target is above is, move to position 3 rows above target
        targetRect.setLocation(targetRect.x, targetRect.y - (targetRect.height * 3));
    }/*from  ww  w .ja  va 2  s  . co  m*/

    this.table.scrollRectToVisible(targetRect);
}

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From source file:net.sf.jabref.gui.maintable.MainTable.java

public void scrollToCenter(int rowIndex, int vColIndex) {
    if (!(this.getParent() instanceof JViewport)) {
        return;/*from   w ww. j  a v a  2  s.  co  m*/
    }

    JViewport viewport = (JViewport) this.getParent();

    // This rectangle is relative to the table where the
    // northwest corner of cell (0,0) is always (0,0).
    Rectangle rect = this.getCellRect(rowIndex, vColIndex, true);

    // The location of the view relative to the table
    Rectangle viewRect = viewport.getViewRect();

    // Translate the cell location so that it is relative
    // to the view, assuming the northwest corner of the
    // view is (0,0).
    rect.setLocation(rect.x - viewRect.x, rect.y - viewRect.y);

    // Calculate location of rect if it were at the center of view
    int centerX = (viewRect.width - rect.width) / 2;
    int centerY = (viewRect.height - rect.height) / 2;

    // Fake the location of the cell so that scrollRectToVisible
    // will move the cell to the center
    if (rect.x < centerX) {
        centerX = -centerX;
    }
    if (rect.y < centerY) {
        centerY = -centerY;
    }
    rect.translate(centerX, centerY);

    // Scroll the area into view.
    viewport.scrollRectToVisible(rect);

    revalidate();
    repaint();
}

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From source file:org.eurocarbdb.application.glycoworkbench.plugin.reporting.AnnotationReportCanvas.java

private void dragAndScroll(MouseEvent e) {
    // move view if near borders                
    Point point = e.getPoint();//from w  w  w  . j  ava2s  .  co m
    JViewport view = theScrollPane.getViewport();
    Rectangle inner = view.getViewRect();
    inner.grow(-10, -10);

    if (!inner.contains(point)) {
        Point orig = view.getViewPosition();
        if (point.x < inner.x)
            orig.x -= 10;
        else if (point.x > (inner.x + inner.width))
            orig.x += 10;
        if (point.y < inner.y)
            orig.y -= 10;
        else if (point.y > (inner.y + inner.height))
            orig.y += 10;

        int maxx = getBounds().width - view.getViewRect().width;
        int maxy = getBounds().height - view.getViewRect().height;
        if (orig.x < 0)
            orig.x = 0;
        if (orig.x > maxx)
            orig.x = maxx;
        if (orig.y < 0)
            orig.y = 0;
        if (orig.y > maxy)
            orig.y = maxy;

        view.setViewPosition(orig);
    }
}

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From source file:de.codesourcery.jasm16.ide.ui.views.SourceCodeView.java

protected final ITextRegion getVisibleTextRegion() {
    JViewport viewport = editorScrollPane.getViewport();
    Rectangle viewRect = viewport.getViewRect();

    Point p1 = viewRect.getLocation();
    int startIndex = editorPane.viewToModel(p1);
    if (startIndex < 0) {
        return null;
    }/*from   w w w . j  a va 2 s .co  m*/
    Point p2 = new Point(p1.x + viewRect.width - 10, p1.y + viewRect.height - 10); // -10 is some arbitrary offset to fix an issue with viewToModel() returning a position at the end of the input text 
    int endIndex = editorPane.viewToModel(p2);
    if (endIndex < 0) {
        return null;
    }

    int len = endIndex - startIndex;
    if (len < 0) {
        return null;
    }
    System.out.println("getVisibleTextRegion( " + p1 + " , " + p2 + " => " + startIndex + "," + endIndex);
    return new TextRegion(startIndex, len);
}

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From source file:net.sf.dvstar.transmission.TransmissionView.java

private List<Integer> buildViewModelList() {
    ArrayList ret = new ArrayList();

    int firstRow = 0, lastRow = 0;
    JViewport viewport = (JViewport) spTorrentList.getViewport();
    Rectangle viewRect = viewport.getViewRect();
    firstRow = tblTorrentList.rowAtPoint(new Point(0, viewRect.y));
    lastRow = tblTorrentList.rowAtPoint(new Point(0, viewRect.y + viewRect.height - 1));
    if (lastRow < 0) {
        lastRow = firstRow + tblTorrentList.getRowSorter().getViewRowCount() - 1;
    }// ww  w.  ja  v a 2s  .  com
    /**
     * @todo   if rows < height - not update last row
     */
    tracePrint(true, "=-=-=-=-=-=-= tblTorrentList first=" + firstRow + " last=" + lastRow);

    for (int i = firstRow; i <= lastRow; i++) {
        ret.add(new Integer(tblTorrentList.convertRowIndexToModel(i)/* realConvertRowIndexToModel(i)*/));
    }

    return ret;
}

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From source file:org.jimcat.gui.wheellist.WheelList.java

/**
 * does layout before printing/*w w  w  . j  a v  a  2s .co  m*/
 * 
 * @see javax.swing.JComponent#paintChildren(java.awt.Graphics)
 */
@Override
protected void paintChildren(Graphics g) {
    // 1) do layout
    Rectangle area = null;
    if (getParent() instanceof JViewport) {
        JViewport port = (JViewport) getParent();
        area = port.getViewRect();
    } else {
        Dimension size = getSize();
        area = new Rectangle(0, 0, size.width, size.height);
    }

    // do layout
    currentColumnCount = getWidth() / itemSize.width;
    currentSideOffset = (getWidth() - itemSize.width * currentColumnCount) / 2;

    int startRow = area.y / itemSize.height;
    int endRow = (area.y + area.height) / itemSize.height;

    int startCol = (area.x - currentSideOffset) / itemSize.width;
    int endCol = (area.x - currentSideOffset + area.width) / itemSize.width - 1;

    // update current rectangle
    currentArea = new Rectangle(startCol, startRow, endCol - startCol, endRow - startRow);

    // only do layout if necessary
    if (!ObjectUtils.equals(currentArea, lastViewArea)) {

        // remove unnecessary items
        for (Integer key : new HashSet<Integer>(map.keySet())) {
            int keyValue = key.intValue();
            if (keyValue >= 0 && !containesIndex(currentArea, keyValue)) {
                WheelListItem<T> item = map.get(key);
                remove(item);
                map.remove(key);
                map.put((-1) * key.intValue() - 1, item);
            }
        }

        // add new items
        for (int i = startRow; i <= endRow; i++) {
            for (int j = startCol; j <= endCol; j++) {
                // place item
                int index = i * currentColumnCount + j;
                if (index < model.getSize()) {

                    // get item
                    WheelListItem<T> item = getItemForIndex(index);

                    // prepaire item
                    item.setElement(model.getElementAt(index));
                    item.setSelected(selectionModel.isSelectedIndex(index));

                    item.setSize(itemSize);
                    item.setLocation(currentSideOffset + j * itemSize.width, i * itemSize.height);

                    // add item
                    if (item.getParent() != this) {
                        add(item);
                    }
                }
            }
        }

        validate();

        lastViewArea = currentArea;
    }

    // 2) paint
    super.paintChildren(g);
}

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From source file:org.nuclos.client.ui.collect.result.SearchResultStrategy.java

private void adjustVerticalScrollBarForSearch(boolean bRefreshOnly) {
    final CollectController<Clct> cc = getCollectController();
    final JViewport viewport = cc.getResultPanel().getResultTableScrollPane().getViewport();
    if (bRefreshOnly) {
        final Rectangle rect = cc.getResultTable().getCellRect(0, 0, true);
        final Rectangle viewRect = viewport.getViewRect();
        // There seem to be different opinions about what scrollRectToVisible has to do at SUN and everywhere else...
        rect.setLocation(viewRect.x, viewRect.y);//rect.x - viewRect.x, rect.y - viewRect.y);
        viewport.scrollRectToVisible(rect);
    } else {//from w w w .  ja va 2 s  . c o  m
        Point viewPosition = viewport.getViewPosition();
        viewport.setViewPosition(new Point(viewPosition.x, 0));
    }
    final JScrollBar scrlbarVertical = cc.getResultPanel().getResultTableScrollPane().getVerticalScrollBar();
    scrlbarVertical.setValue(scrlbarVertical.getMinimum());
}

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