Examples with Graphics com.codename1.ui.Graphics used on opensource projects

Example 21 with Graphics

use of com.codename1.ui.Graphics in project CodenameOne by codenameone.

the class CodenameOneImplementation method setClipRect.

/**
 * Installs a new clipping rectangle
 *
 * @param graphics the graphics context
 * @param rect rectangle representing the new clipping area
 */
public void setClipRect(Object graphics, Rectangle rect) {
    Dimension d = rect.getSize();
    setClip(graphics, rect.getX(), rect.getY(), d.getWidth(), d.getHeight());
}

Example 22 with Graphics

use of com.codename1.ui.Graphics in project CodenameOne by codenameone.

the class BlackBerryCanvas method paint.

public void paint(Graphics g) {
    int f = getFieldCount();
    if (f > 0) {
        g.drawBitmap(0, 0, getWidth(), getHeight(), screen, 0, 0);
        Form currentForm = Display.getInstance().getCurrent();
        for (int iter = 0; iter < f; iter++) {
            Field fld = getField(iter);
            int pops = 0;
            if (currentForm != null) {
                PeerComponent p = findPeer(currentForm.getContentPane(), fld);
                if (p != null) {
                    pops = clipOnLWUITBounds(p, g);
                } else {
                    Component cmp = currentForm.getFocused();
                    // we are now editing an edit field
                    if (cmp != null && cmp instanceof TextArea && cmp.hasFocus() && fld instanceof EditField) {
                        pops = clipOnLWUITBounds(cmp, g);
                        int x = fld.getLeft();
                        int y = fld.getTop();
                        g.clear(x, y, Math.max(cmp.getWidth(), fld.getWidth()), Math.max(cmp.getHeight(), fld.getHeight()));
                    }
                }
            }
            paintChild(g, fld);
            while (pops > 0) {
                g.popContext();
                pops--;
            }
        }
    } else {
        g.drawBitmap(0, 0, getWidth(), getHeight(), screen, 0, 0);
    }
    g.setColor(0);
    g.drawText(debug, 0, 0);
    painted = true;
}

Example 23 with Graphics

use of com.codename1.ui.Graphics in project CodenameOne by codenameone.

the class Capture method capturePhoto.

/**
 * <p>Invokes the camera and takes a photo synchronously while blocking the EDT, the sample below
 * demonstrates a simple usage and applying a mask to the result</p>
 * <script src="https://gist.github.com/codenameone/b18c37dfcc7de752e0e6.js"></script>
 * <img src="https://www.codenameone.com/img/developer-guide/graphics-image-masking.png" alt="Picture after the capture was complete and the resulted image was rounded. The background was set to red so the rounding effect will be more noticeable" />
 *
 * @param width the target width for the image if possible, some platforms don't support scaling. To maintain aspect ratio set to -1
 * @param height the target height for the image if possible, some platforms don't support scaling. To maintain aspect ratio set to -1
 * @return the photo file location or null if the user canceled
 */
public static String capturePhoto(int width, int height) {
    CallBack c = new CallBack();
    if ("ios".equals(Display.getInstance().getPlatformName()) && (width != -1 || height != -1)) {
        // workaround for threading issues in iOS https://github.com/codenameone/CodenameOne/issues/2246
        capturePhoto(c);
        Display.getInstance().invokeAndBlock(c);
        if (c.url == null) {
            return null;
        }
        ImageIO scale = Display.getInstance().getImageIO();
        if (scale != null) {
            try {
                String path = c.url.substring(0, c.url.indexOf(".")) + "s" + c.url.substring(c.url.indexOf("."));
                OutputStream os = FileSystemStorage.getInstance().openOutputStream(path);
                scale.save(c.url, os, ImageIO.FORMAT_JPEG, width, height, 1);
                Util.cleanup(os);
                FileSystemStorage.getInstance().delete(c.url);
                return path;
            } catch (IOException ex) {
                Log.e(ex);
            }
        }
    } else {
        c.targetWidth = width;
        c.targetHeight = height;
        capturePhoto(c);
        Display.getInstance().invokeAndBlock(c);
    }
    return c.url;
}

Example 24 with Graphics

use of com.codename1.ui.Graphics in project CodenameOne by codenameone.

the class IOSImplementation method createAlphaMask.

// -------------------------------------------------------------------------
// METHODS FOR DRAWING SHAPES AND TRANSFORMATIONS
// -------------------------------------------------------------------------
/**
 * Creates a platform-specific alpha mask for a shape.  This is used to cache
 * masks in the {@link com.codename1.ui.GeneralPath} class.  On iOS the alpha
 * mask is an OpenGL texture ID (not a raster of alpha pixels), but other platforms
 * may use different representations if they like.
 *
 * <p>The {@link com.codename1.ui.Graphics#drawAlphaMask} method
 * is used to draw a mask on the graphics context and this will ultimately call {@link #drawAlphaMask}
 * which can be platform specific also.
 * </p>
 * @param shape The shape that will have an alpha mask created.
 * @param stroke The stroke settings for stroking the outline of the mask.  Leave null to produce a fill
 * mask.
 * @return The platform specific alpha mask object or null if it is not supported or failed.
 * @see #deleteAlphaMask
 * @see #drawAlphaMask
 * @see #isAlphaMaskSupported
 * @see com.codename1.ui.Graphics#drawAlphaMask
 * @see com.codename1.ui.GeneralPath#getAlphaMask
 */
public TextureAlphaMask createAlphaMask(Shape shape, Stroke stroke) {
    int[] bounds = new int[] { 0, 0, 0, 0 };
    long tex = nativeCreateAlphaMaskForShape(shape, stroke, bounds);
    Rectangle shapeBounds = shape.getBounds();
    int[] padding = new int[] { // top
    shapeBounds.getY() - bounds[1], // right
    bounds[2] - (shapeBounds.getX() + shapeBounds.getWidth()), // bottom
    bounds[3] - (shapeBounds.getY() + shapeBounds.getHeight()), // left
    shapeBounds.getX() - bounds[0] };
    if (tex == 0) {
        return null;
    }
    return new TextureAlphaMask(tex, new Rectangle(bounds[0], bounds[1], bounds[2] - bounds[0], bounds[3] - bounds[1]), padding);
}

Example 25 with Graphics

use of com.codename1.ui.Graphics in project CodenameOne by codenameone.

the class ImageViewer method paint.

/**
 * {@inheritDoc}
 */
@Override
public void paint(Graphics g) {
    if (panPositionX < 0) {
        Style s = getStyle();
        int width = getWidth() - s.getHorizontalPadding();
        float ratio = ((float) width) * (panPositionX * -1);
        g.drawImage(image, ((int) ratio) + getX() + imageX, getY() + imageY, imageDrawWidth, imageDrawHeight);
        if (cycleLeft || swipeableImages.getSelectedIndex() > getImageLeftPos()) {
            Image left = getImageLeft();
            if (swipePlaceholder != null) {
                left.asyncLock(swipePlaceholder);
            } else {
                left.lock();
            }
            ratio = ratio - width;
            imageAspectCalc(left);
            g.drawImage(left, ((int) ratio) + getX() + prefX, getY() + prefY, prefW, prefH);
        }
        return;
    }
    if (panPositionX > 1) {
        Style s = getStyle();
        int width = getWidth() - s.getHorizontalPadding();
        float ratio = ((float) width) * (1 - panPositionX);
        g.drawImage(image, ((int) ratio) + getX() + imageX, getY() + imageY, imageDrawWidth, imageDrawHeight);
        if (cycleRight || swipeableImages.getSelectedIndex() < getImageRightPos()) {
            Image right = getImageRight();
            if (swipePlaceholder != null) {
                right.asyncLock(swipePlaceholder);
            } else {
                right.lock();
            }
            ratio = ratio + width;
            imageAspectCalc(right);
            g.drawImage(right, ((int) ratio) + getX() + prefX, getY() + prefY, prefW, prefH);
        }
        return;
    }
    // can happen in the GUI builder
    if (image != null) {
        g.drawImage(image, getX() + imageX, getY() + imageY, imageDrawWidth, imageDrawHeight);
    }
}