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

Example 46 with Form

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

the class Component method getInvisibleAreaUnderVKB.

/**
 * Returns the area of this component that is currently hidden by the virtual keyboard.
 * @return
 */
private int getInvisibleAreaUnderVKB() {
    Form f = getComponentForm();
    if (f != null) {
        int invisibleAreaUnderVKB = Form.getInvisibleAreaUnderVKB(f);
        if (invisibleAreaUnderVKB == 0) {
            return 0;
        }
        int bottomGap = f.getHeight() - getAbsoluteY() - getScrollY() - getHeight();
        if (bottomGap < invisibleAreaUnderVKB) {
            return invisibleAreaUnderVKB - bottomGap;
        } else {
            return 0;
        }
    }
    return 0;
}

Example 47 with Form

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

the class Component method pointerDragged.

/**
 * If this Component is focused, the pointer dragged event
 * will call this method
 *
 * @param x the pointer x coordinate
 * @param y the pointer y coordinate
 */
public void pointerDragged(final int x, final int y) {
    Form p = getComponentForm();
    if (p == null) {
        return;
    }
    if (pointerDraggedListeners != null && pointerDraggedListeners.hasListeners()) {
        pointerDraggedListeners.fireActionEvent(new ActionEvent(this, ActionEvent.Type.PointerDrag, x, y));
    }
    if (dragAndDropInitialized) {
        // keep call to pointerDragged to move the parent scroll if needed
        if (dragCallbacks < 2) {
            dragCallbacks++;
            Display.getInstance().callSerially(new Runnable() {

                public void run() {
                    if (dragActivated) {
                        pointerDragged(x, y);
                    }
                    dragCallbacks--;
                }
            });
        }
        if (!dragActivated) {
            dragActivated = true;
            setVisible(false);
            p.setDraggedComponent(this);
            oldx = x;
            oldy = y;
            draggedx = getAbsoluteX();
            draggedy = getAbsoluteY();
        }
        Component dropTo = findDropTarget(this, x, y);
        if (dropTo != null && dragOverListener != null) {
            ActionEvent ev = new ActionEvent(this, dropTo, x, y);
            dragOverListener.fireActionEvent(ev);
            if (ev.isConsumed()) {
                return;
            }
        }
        if (dropTargetComponent != dropTo) {
            if (dropTargetComponent != null) {
                dropTargetComponent.dragExit(this);
            }
            dropTargetComponent = dropTo;
            if (dropTargetComponent != null) {
                dropTargetComponent.dragEnter(this);
            }
        }
        // we repaint twice to create an intersection of the old and new position
        p.repaint(draggedx, draggedy, getWidth(), getHeight());
        draggedx = draggedx + (x - oldx);
        draggedy = draggedy + (y - oldy);
        oldx = x;
        oldy = y;
        p.repaint(draggedx, draggedy, getWidth(), getHeight());
        Container scrollParent = getParent();
        while (scrollParent != null && !scrollParent.isScrollable()) {
            scrollParent = scrollParent.getParent();
        }
        if (scrollParent != null) {
            Style s = getStyle();
            int w = getWidth() - s.getHorizontalPadding();
            int h = getHeight() - s.getVerticalPadding();
            Rectangle view;
            int invisibleAreaUnderVKB = getInvisibleAreaUnderVKB();
            view = new Rectangle(getScrollX(), getScrollY(), w, h - invisibleAreaUnderVKB);
            // if the dragging component is out of bounds move the scrollable parent
            if (!view.contains(draggedx - scrollParent.getAbsoluteX(), draggedy - scrollParent.getAbsoluteY(), getWidth(), getHeight())) {
                if ((scrollParent.isScrollableY() && scrollParent.getScrollY() >= 0 && scrollParent.getScrollY() + (draggedy + getHeight()) < scrollParent.getScrollDimension().getHeight()) || (scrollParent.isScrollableX() && scrollParent.getScrollX() >= 0 && scrollParent.getScrollX() + (draggedx + getWidth()) < scrollParent.getScrollDimension().getWidth())) {
                    int yposition = draggedy - scrollParent.getAbsoluteY() - 40;
                    if (yposition < 0) {
                        yposition = 0;
                    }
                    int xposition = draggedx - scrollParent.getAbsoluteX() - 40;
                    if (xposition < 0) {
                        xposition = 0;
                    }
                    int height = getHeight() + 80;
                    if (scrollParent.getScrollY() + draggedy + height >= scrollParent.getScrollDimension().getHeight()) {
                        yposition = draggedy - scrollParent.getAbsoluteY();
                        height = scrollParent.getScrollDimension().getHeight() - yposition;
                    }
                    int width = getWidth() + 80;
                    if (scrollParent.getScrollX() + draggedx + width >= scrollParent.getScrollDimension().getWidth()) {
                        xposition = draggedx - scrollParent.getAbsoluteX();
                        width = scrollParent.getScrollDimension().getWidth() - xposition;
                    }
                    scrollParent.scrollRectToVisible(xposition, yposition, width, height, scrollParent);
                }
            }
        }
        return;
    }
    if (dragActivated && p.getDraggedComponent() == null) {
        dragActivated = false;
    }
    if (!dragActivated) {
        boolean draggedOnX = Math.abs(p.initialPressX - x) > Math.abs(p.initialPressY - y);
        shouldGrabScrollEvents = (isScrollableX() && draggedOnX) || isScrollableY() && !draggedOnX;
    }
    if (isScrollable() && isSmoothScrolling() && shouldGrabScrollEvents) {
        if (!dragActivated) {
            dragActivated = true;
            lastScrollY = y;
            lastScrollX = x;
            p.setDraggedComponent(this);
            p.registerAnimatedInternal(this);
            Component fc = p.getFocused();
            if (fc != null && fc != this) {
                fc.dragInitiated();
            }
        }
        // and pulling it in the reverse direction of the drag
        if (isScrollableY()) {
            int tl;
            if (getTensileLength() > -1 && refreshTask == null) {
                tl = getTensileLength();
            } else {
                tl = getHeight() / 2;
            }
            if (!isSmoothScrolling() || !isTensileDragEnabled()) {
                tl = 0;
            }
            int scroll = getScrollY() + (lastScrollY - y);
            if (isAlwaysTensile() && getScrollDimension().getHeight() + getInvisibleAreaUnderVKB() <= getHeight()) {
                if (scroll >= -tl && scroll < getHeight() + tl) {
                    setScrollY(scroll);
                }
            } else {
                if (scroll >= -tl && scroll < getScrollDimension().getHeight() + getInvisibleAreaUnderVKB() - getHeight() + tl) {
                    setScrollY(scroll);
                }
            }
            updateTensileHighlightIntensity(lastScrollY, y, false);
        }
        if (isScrollableX()) {
            int tl;
            if (getTensileLength() > -1) {
                tl = getTensileLength();
            } else {
                tl = getWidth() / 2;
            }
            if (!isSmoothScrolling() || !isTensileDragEnabled()) {
                tl = 0;
            }
            int scroll = getScrollX() + (lastScrollX - x);
            if (scroll >= -tl && scroll < getScrollDimension().getWidth() - getWidth() + tl) {
                setScrollX(scroll);
            }
        }
        lastScrollY = y;
        lastScrollX = x;
    } else {
        // try to find a scrollable element until you reach the Form
        Component parent = getParent();
        if (!(parent instanceof Form)) {
            parent.pointerDragged(x, y);
        }
    }
}

Example 48 with Form

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

the class Component method setScrollY.

/**
 * Indicates the X position of the scrolling, this number is relative to the
 * component position and so a position of 0 would indicate the x position
 * of the component.
 *
 * @param scrollY the Y position of the scrolling
 */
protected void setScrollY(int scrollY) {
    if (this.scrollY != scrollY) {
        CodenameOneImplementation ci = Display.impl;
        if (ci.isAsyncEditMode() && ci.isEditingText()) {
            Component editingText = ci.getEditingText();
            if (editingText != null && this instanceof Container && ((Container) this).contains(editingText)) {
                ci.hideTextEditor();
            }
        }
    }
    // the setter must always update the value regardless...
    int scrollYtmp = scrollY;
    if (!isSmoothScrolling() || !isTensileDragEnabled()) {
        Form parentForm = getComponentForm();
        int v = getInvisibleAreaUnderVKB();
        int h = getScrollDimension().getHeight() - getHeight() + v;
        scrollYtmp = Math.min(scrollYtmp, h);
        scrollYtmp = Math.max(scrollYtmp, 0);
    }
    if (isScrollableY()) {
        if (Form.activePeerCount > 0) {
            onParentPositionChange();
        }
        repaint();
    }
    if (scrollListeners != null) {
        scrollListeners.fireScrollEvent(this.scrollX, scrollYtmp, this.scrollX, this.scrollY);
    }
    this.scrollY = scrollYtmp;
    onScrollY(this.scrollY);
}

Example 49 with Form

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

the class Component method startTensile.

void startTensile(int offset, int dest, boolean vertical) {
    Motion draggedMotion;
    if (tensileDragEnabled) {
        draggedMotion = Motion.createDecelerationMotion(offset, dest, 500);
        draggedMotion.start();
    } else {
        draggedMotion = Motion.createLinearMotion(offset, dest, 0);
        draggedMotion.start();
    }
    decelerationMotion = draggedMotion;
    if (vertical) {
        draggedMotionY = draggedMotion;
    } else {
        draggedMotionX = draggedMotion;
    }
    // just to be sure, there are some cases where this doesn't work as expected
    Form p = getComponentForm();
    if (p != null) {
        p.registerAnimatedInternal(this);
    }
}

Example 50 with Form

use of com.codename1.ui.Form 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;
    }
}