Examples with Tracker org.csstudio.javafx.Tracker used on opensource projects

Example 1 with Tracker

use of org.csstudio.javafx.Tracker in project org.csstudio.display.builder by kasemir.

the class ImagePlot method mouseDown.

/**
 * onMousePressed
 */
private void mouseDown(final MouseEvent e) {
    // Don't start mouse actions when user invokes context menu
    if (!e.isPrimaryButtonDown() || (PlatformInfo.is_mac_os_x && e.isControlDown()))
        return;
    // -> User clicked outside of tracker. Remove it.
    if (roi_tracker != null) {
        removeROITracker();
        // User needs to click again for that.
        return;
    }
    // Select any tracker
    final Point2D current = new Point2D(e.getX(), e.getY());
    for (RegionOfInterest roi : rois) if (roi.isVisible() && roi.isInteractive()) {
        final Rectangle rect = roiToScreen(roi);
        if (rect.contains(current.getX(), current.getY())) {
            // Check if complete ROI is visible,
            // because otherwise tracker would extend beyond the
            // current image viewport
            final Rectangle2D image_rect = GraphicsUtils.convert(image_area);
            if (image_rect.contains(rect.x, rect.y, rect.width, rect.height)) {
                roi_tracker = new Tracker(image_rect);
                roi_tracker.setPosition(rect.x, rect.y, rect.width, rect.height);
                ChildCare.addChild(getParent(), roi_tracker);
                final int index = rois.indexOf(roi);
                roi_tracker.setListener((old_pos, new_pos) -> updateRoiFromScreen(index, new_pos));
                return;
            }
        }
    }
    mouse_start = mouse_current = Optional.of(current);
    final int clicks = e.getClickCount();
    if (mouse_mode == MouseMode.NONE) {
        if (crosshair) {
            updateLocationInfo(e.getX(), e.getY());
            requestRedraw();
        }
    } else if (mouse_mode == MouseMode.PAN) {
        // Determine start of 'pan'
        mouse_start_x_range = x_axis.getValueRange();
        mouse_start_y_range = y_axis.getValueRange();
        mouse_mode = MouseMode.PAN_PLOT;
    } else if (mouse_mode == MouseMode.ZOOM_IN && clicks == 1) {
        // Reset cursor from SIZE* to CROSS.
        if (y_axis.getBounds().contains(current.getX(), current.getY())) {
            mouse_mode = MouseMode.ZOOM_IN_Y;
            PlotCursors.setCursor(this, mouse_mode);
        } else if (image_area.contains(current.getX(), current.getY())) {
            mouse_mode = MouseMode.ZOOM_IN_PLOT;
            PlotCursors.setCursor(this, mouse_mode);
        } else if (x_axis.getBounds().contains(current.getX(), current.getY())) {
            mouse_mode = MouseMode.ZOOM_IN_X;
            PlotCursors.setCursor(this, mouse_mode);
        }
    } else if ((mouse_mode == MouseMode.ZOOM_IN && clicks == 2) || mouse_mode == MouseMode.ZOOM_OUT)
        zoomInOut(current.getX(), current.getY(), ZOOM_FACTOR);
}