Examples with Transform org.eclipse.swt.graphics.Transform used on opensource projects

Example 26 with Transform

use of org.eclipse.swt.graphics.Transform in project netxms by netxms.

the class ObjectStatusRadialWidget method drawParts.

/**
 * Draw sectors for all objects
 *
 * @param object the root object
 */
private float drawParts(GC gc, AbstractObject object, int lvl, float degree) {
    gc.setAlpha(255);
    float objectSize = 0;
    for (AbstractObject obj : object.getChildsAsArray()) {
        float currObjsize = 0;
        if (AbstractObjectStatusMap.isContainerObject(obj)) {
            currObjsize = drawParts(gc, obj, lvl + 1, degree);
            if (currObjsize == 0) {
                if (objects != null)
                    continue;
                currObjsize = leafObjectSize;
            }
        } else {
            if (objects != null && !objects.containsKey(obj.getObjectId()))
                continue;
            currObjsize = leafObjectSize;
        }
        // compensate for rounding errors by either extending or shrinking current object by one degree
        int compensation = Integer.signum(Math.round(degree + currObjsize) - (Math.round(degree) + Math.round(currObjsize)));
        // white circle before each level
        gc.setBackground(getDisplay().getSystemColor(SWT.COLOR_WHITE));
        gc.fillArc(centerX - (diameter * lvl) / 2 - 3, centerY - (diameter * lvl) / 2 - 3, diameter * lvl + 6, diameter * lvl + 6, Math.round(degree), Math.round(currObjsize) + compensation);
        gc.setBackground(StatusDisplayInfo.getStatusColor(obj.getStatus()));
        gc.fillArc(centerX - (diameter * lvl) / 2, centerY - (diameter * lvl) / 2, diameter * lvl, diameter * lvl, Math.round(degree), Math.round(currObjsize) - 1 + compensation);
        objectMap.add(new ObjectPosition(degree, degree + currObjsize, lvl, obj));
        Transform oldTransform = new Transform(gc.getDevice());
        gc.getTransform(oldTransform);
        // draw text
        String text = obj.getObjectName();
        Transform tr = new Transform(getDisplay());
        tr.translate(centerX, centerY);
        // text centering
        float rotate = 0;
        float middle = degree + currObjsize / 2;
        if (middle >= 90 && middle < 180)
            rotate = 90 - (middle - 90);
        if (middle >= 270 && middle <= 360)
            rotate = 90 - (middle - 270);
        if (middle >= 0 && middle < 90)
            rotate = -middle;
        if (middle >= 180 && middle < 270)
            rotate = -(middle - 180);
        tr.rotate(rotate);
        gc.setTransform(tr);
        // cut text function
        int l = gc.textExtent(text).x;
        int h = gc.textExtent(text).y;
        // high of sector
        int high = (int) ((Math.tan(currObjsize / 2)) * ((diameter * lvl) / 2) * 2) - 6;
        int lineNum = high / (h + 13);
        if (lineNum < 0 || lineNum > 3)
            lineNum = 3;
        if (l > diameter / 2 - 6) {
            text = substring(text, gc, lineNum);
        }
        h = gc.textExtent(text).y;
        gc.setForeground(ColorConverter.selectTextColorByBackgroundColor(StatusDisplayInfo.getStatusColor(obj.getStatus()), cCache));
        if (middle >= 90 && middle <= 180 || middle > 180 && middle < 270) {
            l = gc.textExtent(text).x;
            gc.drawText(text, -(diameter * (lvl - 1)) / 2 - 6 - l, -h / 2, SWT.DRAW_TRANSPARENT | SWT.DRAW_DELIMITER);
        } else
            gc.drawText(text, (diameter * (lvl - 1)) / 2 + 5, -h / 2, SWT.DRAW_TRANSPARENT | SWT.DRAW_DELIMITER);
        gc.setTransform(oldTransform);
        tr.dispose();
        oldTransform.dispose();
        degree += currObjsize;
        objectSize += currObjsize;
    }
    return objectSize;
}

Example 27 with Transform

use of org.eclipse.swt.graphics.Transform in project n4js by eclipse.

the class GraphCanvas method doPaint.

protected void doPaint(GC gc, PaintEvent event) {
    gc.setBackground(Display.getDefault().getSystemColor(SWT.COLOR_WHITE));
    gc.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
    gc.fillRectangle(event.x, event.y, event.width, event.height);
    if (graph == null)
        return;
    final Transform tf = new Transform(gc.getDevice());
    tf.translate(-offsetX, -offsetY);
    tf.scale(scale, scale);
    gc.setTransform(tf);
    if (graphNeedsLayout) {
        graph.layout(gc);
        graphNeedsLayout = false;
    }
    for (Edge e : graph.getEdges()) {
        Stream<Node> eNodes = e.getNodes().stream();
        boolean paintIt = false;
        paintIt |= !e.isCrossLink();
        paintIt |= e.isCrossLink() && (showAllCrossLinks || eNodes.anyMatch(n -> n == hoveredNode || selectedNodes.contains(n)));
        if (paintIt) {
            e.paint(gc);
        }
    }
    for (Node n : graph.getNodes()) {
        n.paint(gc);
    }
    gc.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLUE));
    for (Node sn : selectedNodes) {
        float x = sn.getX() - 2;
        float y = sn.getY() - 2;
        float width = sn.getWidth() + 4;
        float height = sn.getHeight() + 4;
        GraphUtils.drawRectangle(gc, x, y, width, height);
    }
    gc.setTransform(null);
    tf.dispose();
    if (hawkEye_active && hawkEye_target != null) {
        final int w = Math.round(getSize().x / hawkEye_oldScale * scale);
        final int h = Math.round(getSize().y / hawkEye_oldScale * scale);
        final int x = (int) hawkEye_target.x - w / 2;
        final int y = (int) hawkEye_target.y - h / 2;
        gc.setBackground(Display.getDefault().getSystemColor(SWT.COLOR_BLUE));
        gc.setAlpha(64);
        gc.fillRectangle(x, y, w, h);
        gc.setAlpha(255);
    }
}

Example 28 with Transform

use of org.eclipse.swt.graphics.Transform in project n4js by eclipse.

the class VisualisationCanvas method doPaint.

protected void doPaint(GC gc, PaintEvent event) {
    gc.setBackground(Display.getDefault().getSystemColor(SWT.COLOR_WHITE));
    gc.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
    gc.fillRectangle(event.x, event.y, event.width, event.height);
    if (graph != null) {
        final Transform tf = new Transform(gc.getDevice());
        tf.translate(-offsetX, -offsetY);
        tf.scale(scale, scale);
        gc.setTransform(tf);
        if (graphNeedsLayout) {
            graph.layout();
            graphNeedsLayout = false;
        }
        graph.getNodes().forEach(n -> n.paint(gc));
        gc.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLUE));
        gc.setTransform(null);
        tf.dispose();
        if (hawkEye_active && hawkEye_target != null) {
            final int w = Math.round(getSize().x / hawkEye_oldScale * scale);
            final int h = Math.round(getSize().y / hawkEye_oldScale * scale);
            gc.setBackground(Display.getDefault().getSystemColor(SWT.COLOR_BLUE));
            gc.setAlpha(64);
            gc.fillRectangle((int) hawkEye_target.x - w / 2, (int) hawkEye_target.y - h / 2, w, h);
            gc.setAlpha(255);
        }
    }
}

Example 29 with Transform

use of org.eclipse.swt.graphics.Transform in project SIMVA-SoS by SESoS.

the class SWTGraphics2D method setTransform.

/**
 * Sets the current transform.
 *
 * @param t  the transform.
 */
public void setTransform(AffineTransform t) {
    Transform transform = getSwtTransformFromPool(t);
    this.gc.setTransform(transform);
}

Example 30 with Transform

use of org.eclipse.swt.graphics.Transform in project SIMVA-SoS by SESoS.

the class SWTGraphics2D method transform.

/**
 * Concatenates the specified transform to the existing transform.
 *
 * @param t  the transform.
 */
public void transform(AffineTransform t) {
    Transform swtTransform = new Transform(this.gc.getDevice());
    this.gc.getTransform(swtTransform);
    swtTransform.multiply(getSwtTransformFromPool(t));
    this.gc.setTransform(swtTransform);
    swtTransform.dispose();
}