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

Example 91 with Component

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

the class ComponentSelector method closest.

/**
 * Creates a new set of components consistng of all "closest" ancestors of components
 * in this set which match the provided selector.
 * @param selector The selector to use to match the nearest ancestor.
 * @return New set with ancestors of components in current set.
 */
public ComponentSelector closest(String selector) {
    ComponentSelector matcher = new ComponentSelector(selector, new Label());
    HashSet<Component> matches = new HashSet<Component>();
    for (Component c : this) {
        Component parent = c.getParent();
        while (parent != null) {
            if (matcher.match(parent)) {
                matches.add(parent);
                break;
            }
            parent = parent.getParent();
        }
    }
    return matcher.addAll(matches, true);
}

Example 92 with Component

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

the class Container method wrapInLayeredPane.

/**
 * An atomic operation that wraps the current component in a Container with
 * a layered layout.  This prevents us from having to initialize and deinitialize
 * all of the components in a sub-tree because we want to re-root it.  In particular
 * Form.getLayeredPane() re-roots the entire content pane the first time it is
 * called on a form.  If the form contains native peers there is a flicker which
 * is quite annoying.  Providing a way to do this atomically results in a better
 * user experience.
 * @return The Container that is the new parent of this component.
 */
Container wrapInLayeredPane() {
    final Container oldParent = getParent();
    final Container newParent = new Container(new LayeredLayout());
    final Layout parentLayout = oldParent != null && oldParent.layout != null ? oldParent.layout : null;
    final Object constraint = parentLayout != null ? parentLayout.getComponentConstraint(this) : null;
    newParent.setParent(oldParent);
    newParent.components.add(this);
    final Runnable r = new Runnable() {

        public void run() {
            if (parentLayout != null) {
                parentLayout.removeLayoutComponent(Container.this);
                parentLayout.addLayoutComponent(constraint, newParent, oldParent);
            }
            newParent.initComponentImpl();
            if (oldParent != null) {
                int cmpIndex = -1;
                for (int i = 0; i < oldParent.getComponentCount(); i++) {
                    Component c = oldParent.getComponentAt(i);
                    if (c.equals(Container.this)) {
                        cmpIndex = i;
                        break;
                    }
                }
                // int cmpIndex = oldParent.getComponentIndex(Container.this);  <---  WTF... this always returns -1!!
                if (cmpIndex == -1) {
                    throw new RuntimeException("WTF we have parent but no index!!!!");
                }
                oldParent.components.set(cmpIndex, newParent);
            }
            Container.this.setParent(newParent);
            newParent.revalidate();
        }
    };
    AnimationManager a = getAnimationManager();
    if (a != null && a.isAnimating()) {
        a.addAnimation(new ComponentAnimation() {

            @Override
            public boolean isInProgress() {
                return false;
            }

            @Override
            protected void updateState() {
                r.run();
            }
        });
        return newParent;
    } else {
        r.run();
        return newParent;
    }
}

Example 93 with Component

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

the class Container method scrollComponentToVisible.

/**
 * Makes sure the component is visible in the scroll if this container is
 * scrollable
 *
 * @param c the component that will be scrolling for visibility
 */
public void scrollComponentToVisible(Component c) {
    if (isScrollable()) {
        if (c != null) {
            Rectangle r = c.getVisibleBounds();
            if (c.getParent() != null) {
                // special case for the first component to allow the user to scroll all the
                // way to the top
                Form f = getComponentForm();
                if (f != null && f.getInvisibleAreaUnderVKB() == 0 && f.findFirstFocusable() == c) {
                    // support this use case only if the component doesn't explicitly declare visible bounds
                    if (r == c.getBounds() && !Display.getInstance().isTouchScreenDevice()) {
                        scrollRectToVisible(new Rectangle(0, 0, c.getX() + Math.min(c.getWidth(), getWidth()), c.getY() + Math.min(c.getHeight(), getHeight())), this);
                        return;
                    }
                }
            }
            boolean moveToVisible = true;
            boolean large = c.getVisibleBounds().getSize().getHeight() > getHeight() || c.getVisibleBounds().getSize().getWidth() > getWidth();
            if (large) {
                int x = getScrollX();
                int y = getScrollY();
                int w = getWidth();
                int h = getHeight();
                boolean visible = contains(c) && Rectangle.intersects(c.getAbsoluteX(), c.getAbsoluteY(), c.getWidth(), c.getHeight(), getAbsoluteX() + x, getAbsoluteY() + y, w, h);
                // if this is a big component no need to scroll to the begining if it's
                // partially visible
                moveToVisible = !visible;
            }
            if (moveToVisible) {
                scrollRectToVisible(r.getX(), r.getY(), Math.min(r.getSize().getWidth(), getWidth()), Math.min(r.getSize().getHeight(), getHeight()), c);
            }
        }
    }
}

Example 94 with Component

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

the class Container method paint.

/**
 * {@inheritDoc}
 */
public void paint(Graphics g) {
    if (enableLayoutOnPaint) {
        layoutContainer();
    }
    g.translate(getX(), getY());
    int size = components.size();
    int startIter = 0;
    if (size >= 30) {
        int clipX1 = g.getClipX();
        int clipX2 = g.getClipX() + g.getClipWidth();
        int clipY1 = g.getClipY();
        int clipY2 = g.getClipY() + g.getClipHeight();
        startIter = calculateFirstPaintableOffset(clipX1, clipY1, clipX2, clipY2);
        if (startIter < 0) {
            // There was no efficient way to calculate the offset
            startIter = 0;
        } else if (startIter < size) {
            // There was an efficient way to calculate the offset so we
            // will continue this approach
            size = calculateLastPaintableOffset(startIter, clipX1, clipY1, clipX2, clipY2) + 1;
        }
    }
    CodenameOneImplementation impl = Display.impl;
    if (dontRecurseContainer) {
        for (int iter = startIter; iter < size; iter++) {
            Component cmp = components.get(iter);
            if (cmp.getClass() == Container.class) {
                paintContainerChildrenForAnimation((Container) cmp, g);
            } else {
                cmp.paintInternal(impl.getComponentScreenGraphics(this, g), false);
            }
        }
    } else {
        for (int iter = startIter; iter < size; iter++) {
            Component cmp = components.get(iter);
            cmp.paintInternal(impl.getComponentScreenGraphics(this, g), false);
        }
    }
    int tx = g.getTranslateX();
    int ty = g.getTranslateY();
    g.translate(-tx, -ty);
    if (sidemenuBarTranslation > 0) {
        g.translate(sidemenuBarTranslation, 0);
        paintGlass(g);
        paintTensile(g);
        g.translate(-sidemenuBarTranslation, 0);
    } else {
        paintGlass(g);
        paintTensile(g);
    }
    g.translate(tx, ty);
    g.translate(-getX(), -getY());
}

Example 95 with Component

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

the class Container method isObscuredByChildren.

/**
 * Invoked internally to indicate if child components are hiding this container
 * thus removing the need to invoke its own paint methods
 * @return true if child components are obscuring this component
 */
boolean isObscuredByChildren() {
    if (!blockOverdraw) {
        return false;
    }
    if (!getLayout().obscuresPotential(this)) {
        return false;
    }
    Style s = getStyle();
    if (s.getPaddingTop() != 0 || s.getPaddingLeftNoRTL() != 0 || s.getPaddingRightNoRTL() != 0 || s.getPaddingBottom() != 0) {
        return false;
    }
    int size = components.size();
    for (int iter = 0; iter < size; iter++) {
        Component cmp = components.get(iter);
        s = cmp.getStyle();
        if (cmp.getWidth() == 0 || cmp.getHeight() == 0) {
            continue;
        }
        // need to think of a better way, this means we invoke the same logic recurisvely again and again by a factor of depth. Not good...
        if (cmp instanceof Container) {
            if (!((Container) cmp).getLayout().obscuresPotential(this)) {
                return false;
            }
            if (s.getOpacity() != 0xff || s.getMarginTop() != 0 || s.getMarginLeftNoRTL() != 0 || s.getMarginRightNoRTL() != 0 || s.getMarginBottom() != 0) {
                return false;
            }
            if ((s.getBgTransparency() & 0xff) != 0xff && !((Container) cmp).isObscuredByChildren()) {
                return false;
            }
        } else {
            if ((s.getBgTransparency() & 0xff) != 0xff || s.getOpacity() != 0xff || s.getMarginTop() != 0 || s.getMarginLeftNoRTL() != 0 || s.getMarginRightNoRTL() != 0 || s.getMarginBottom() != 0) {
                return false;
            }
        }
    }
    return true;
}