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

Example 46 with Container

use of com.codename1.ui.Container 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 47 with Container

use of com.codename1.ui.Container 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 48 with Container

use of com.codename1.ui.Container 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;
}

Example 49 with Container

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

the class Container method calculateLastPaintableOffset.

/**
 * Gets the index of the "last" child component that intersects the given rectangle.  This is
 * only helpful if the components are sorted (e.g. with BoxLayout.Y_AXIS).  If they aren't
 * sorted then this will just return components.size()-1.
 * @param pos The starting position to search.  It is assumed that this starting
 * position is in the visible region.
 * @param clipX1 The left bounds of the region to search.  (0,0) is the top left corner of the container.
 * @param clipY1 The top bounds of the region to search. (0,0) is the top left corner of the container.
 * @param clipX2 The right bounds of the region to search. (0,0) is the top left corner of the container.
 * @param clipY2 The bottom bounds of the region to search. (0,0) is the top left corner of the container.
 * @return The index of the last visible component in this container - or components.size()-1
 */
private int calculateLastPaintableOffset(int pos, int clipX1, int clipY1, int clipX2, int clipY2) {
    final int len = components.size();
    if (pos >= len - 1) {
        // Let's return one less than pos to indicate this
        return len - 1;
    }
    final Layout l = getLayout();
    if (l.getClass() == BoxLayout.class) {
        if (((BoxLayout) l).getAxis() == BoxLayout.Y_AXIS) {
            // Use a binary search to find the first visible
            // Component c = components.get(++pos);
            Component c = null;
            int cy1 = -1;
            final int end = len - 1;
            // This should still be a valid index because
            pos++;
            // we previously checked to see if it was >= len-1
            do {
                c = components.get(pos);
                cy1 = c.getBounds().getY();
            } while (++pos <= end && cy1 <= clipY2);
            return pos - 1;
        }
    }
    return len - 1;
}

Example 50 with Container

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

the class Dialog method placeButtonCommands.

/**
 * Places the given commands in the dialog command area, this is very useful for touch devices.
 *
 * @param cmds the commands to place
 * @deprecated this method shouldn't be invoked externally, it should have been private
 */
public void placeButtonCommands(Command[] cmds) {
    buttonCommands = cmds;
    Container buttonArea;
    if (getUIManager().isThemeConstant("dlgCommandGridBool", false)) {
        buttonArea = new Container(new GridLayout(1, cmds.length));
    } else {
        buttonArea = new Container(new FlowLayout(CENTER));
    }
    buttonArea.setUIID("DialogCommandArea");
    String uiid = getUIManager().getThemeConstant("dlgButtonCommandUIID", null);
    addButtonBar(buttonArea);
    if (cmds.length > 0) {
        String lineColor = getUIManager().getThemeConstant("dlgInvisibleButtons", null);
        if (cmds.length > 3) {
            lineColor = null;
        }
        int largest = Integer.parseInt(getUIManager().getThemeConstant("dlgCommandButtonSizeInt", "0"));
        for (int iter = 0; iter < cmds.length; iter++) {
            Button b = new Button(cmds[iter]);
            if (uiid != null) {
                b.setUIID(uiid);
            }
            // special case for dialog butons uppercase on Android
            if (Button.isCapsTextDefault()) {
                b.setCapsText(true);
            }
            largest = Math.max(b.getPreferredW(), largest);
            if (lineColor != null && lineColor.length() > 0) {
                int color = Integer.parseInt(lineColor, 16);
                Border brd = null;
                if (iter < cmds.length - 1) {
                    brd = Border.createCompoundBorder(Border.createLineBorder(1, color), null, null, Border.createLineBorder(1, color));
                } else {
                    brd = Border.createCompoundBorder(Border.createLineBorder(1, color), null, null, null);
                }
                b.getUnselectedStyle().setBorder(brd);
                b.getSelectedStyle().setBorder(brd);
                b.getPressedStyle().setBorder(brd);
            }
            buttonArea.addComponent(b);
        }
        for (int iter = 0; iter < cmds.length; iter++) {
            buttonArea.getComponentAt(iter).setPreferredW(largest);
        }
        buttonArea.getComponentAt(0).requestFocus();
    }
}