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

Example 76 with List

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

the class List method animate.

/**
 * {@inheritDoc}
 */
public boolean animate() {
    // parent is performing the animation we shouldn't do anything in this case
    // this is the scrolling animation which we don't want to interfear with
    boolean parentFinished = super.animate();
    if ((animationPosition != 0) && listMotion != null && !isDragActivated()) {
        if (animationPosition < 0) {
            animationPosition = Math.min(listMotion.getValue() - destination, 0);
        } else {
            animationPosition = Math.max(destination - listMotion.getValue(), 0);
        }
        if (animationPosition == 0) {
            listMotion = null;
            deregisterAnimatedInternal();
        }
        return true;
    }
    if (fixedDraggedMotion != null) {
        int val = -fixedDraggedMotion.getValue();
        fixedDraggedAnimationPosition = fixedDraggedAnimationPosition - (fixedDraggedPosition - val);
        fixedDraggedPosition = val;
        Dimension size = getElementSize(false, true);
        int s;
        if (orientation == VERTICAL) {
            s = size.getHeight();
        } else {
            s = size.getWidth();
        }
        if (fixedDraggedMotion.isFinished()) {
            deregisterAnimatedInternal();
            // is the closest and animate to it.
            if (fixedDraggedAnimationPosition <= -s / 2) {
                fixedDraggedSelection++;
                if (fixedDraggedSelection >= model.getSize()) {
                    fixedDraggedSelection = 0;
                }
            } else if (fixedDraggedAnimationPosition >= s / 2) {
                fixedDraggedSelection--;
                if (fixedDraggedSelection < 0) {
                    fixedDraggedSelection = model.getSize() - 1;
                }
            }
            if (fixedDraggedAnimationPosition != 0) {
                if (fixedDraggedAnimationPosition < 0) {
                    if (fixedDraggedAnimationPosition < -s / 2) {
                        destination = s + fixedDraggedAnimationPosition;
                        animationPosition = destination;
                    } else {
                        destination = -fixedDraggedAnimationPosition;
                        animationPosition = fixedDraggedAnimationPosition;
                    }
                } else {
                    if (fixedDraggedAnimationPosition > s / 2) {
                        destination = (s - fixedDraggedAnimationPosition);
                        animationPosition = -destination;
                    } else {
                        destination = fixedDraggedAnimationPosition;
                        animationPosition = fixedDraggedAnimationPosition;
                    }
                }
                initListMotion();
                fixedDraggedAnimationPosition = 0;
            }
            // this happens when dragging an empty list causing an exception on a negative selection
            if (fixedDraggedSelection >= 0 && fixedDraggedSelection < getModel().getSize()) {
                setSelectedIndex(fixedDraggedSelection, false);
            }
            setDragActivated(false);
            fixedDraggedMotion = null;
            return false;
        } else {
            if (fixedDraggedAnimationPosition <= -s) {
                fixedDraggedSelection++;
                if (fixedDraggedSelection >= model.getSize()) {
                    fixedDraggedSelection = 0;
                }
                fixedDraggedPosition = val;
            } else if (fixedDraggedAnimationPosition >= s) {
                fixedDraggedSelection--;
                if (fixedDraggedSelection < 0) {
                    fixedDraggedSelection = model.getSize() - 1;
                }
                fixedDraggedPosition = val;
            }
            fixedDraggedAnimationPosition = fixedDraggedAnimationPosition % s;
        }
        return true;
    }
    return parentFinished;
}

Example 77 with List

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

the class List method scrollRectToVisible.

/**
 * Makes sure the selected index is visible if it is not in the current view
 * rect the list will scroll so it fits within
 *
 * @param rect the rectangle area to scroll to
 */
public void scrollRectToVisible(Rectangle rect) {
    if (fixedSelection < FIXED_NONE_BOUNDRY) {
        // Dimension elemSize = getElementSize();
        Rectangle toScroll;
        if (orientation != HORIZONTAL) {
            toScroll = new Rectangle(getScrollX(), rect.getY(), rect.getSize().getWidth(), rect.getSize().getHeight() + itemGap);
        } else {
            toScroll = new Rectangle(rect.getX(), getScrollY(), rect.getSize().getWidth() + itemGap, rect.getSize().getHeight());
        }
        super.scrollRectToVisible(toScroll, this);
    }
}

Example 78 with List

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

the class List method paint.

/**
 * {@inheritDoc}
 */
public void paint(Graphics g) {
    getUIManager().getLookAndFeel().drawList(g, this);
    Style style = getStyle();
    int width = getWidth() - style.getHorizontalPadding() - getSideGap();
    if (isScrollableX()) {
        width = Math.max(width, getScrollDimension().getWidth() - style.getHorizontalPadding() - getSideGap());
    }
    int numOfcomponents = model.getSize();
    if (numOfcomponents == 0) {
        paintHint(g);
        return;
    }
    int xTranslate = getX();
    int yTranslate = getY();
    g.translate(xTranslate, yTranslate);
    Rectangle pos = new Rectangle();
    Dimension rendererSize = getElementSize(false, true);
    if (fixedSelection > FIXED_NONE_BOUNDRY) {
        if (animationPosition != 0 || isDragActivated()) {
            if (orientation != HORIZONTAL) {
                yTranslate += (animationPosition + fixedDraggedAnimationPosition);
                g.translate(0, animationPosition + fixedDraggedAnimationPosition);
            } else {
                xTranslate += (animationPosition + fixedDraggedAnimationPosition);
                g.translate(animationPosition + fixedDraggedAnimationPosition, 0);
            }
        }
    }
    int clipX = g.getClipX();
    int clipY = g.getClipY();
    int clipWidth = g.getClipWidth();
    int clipHeight = g.getClipHeight();
    // this flag is for preformance improvements
    // if we figured out that the list items are not visible anymore
    // we should break from the List loop
    boolean shouldBreak = false;
    // improve performance for browsing the end of a very large list
    int startingPoint = 0;
    if (fixedSelection < FIXED_NONE_BOUNDRY) {
        int startX = clipX + getAbsoluteX();
        if (isRTL()) {
            // In RTL the start of the list is not in the left side of the viewport, but rather the right side
            startX += getWidth();
        }
        startingPoint = Math.max(0, pointerSelect(startX, clipY + getAbsoluteY()) - 1);
    }
    int startOffset = 0;
    int endOffset = numOfcomponents;
    if (mutableRendererBackgrounds) {
        for (int i = startingPoint; i < numOfcomponents; i++) {
            // skip on the selected
            if (i == getCurrentSelected() && animationPosition == 0 && fixedDraggedAnimationPosition == 0) {
                if (!shouldBreak) {
                    startOffset = i;
                }
                endOffset = i;
                shouldBreak = true;
                continue;
            }
            calculateComponentPosition(i, width, pos, rendererSize, getElementSize(true, true), i <= getCurrentSelected());
            // if the renderer is in the clipping region
            if (pos.intersects(clipX, clipY, clipWidth, clipHeight)) {
                if (!shouldBreak) {
                    startOffset = i;
                }
                endOffset = i;
                Dimension size = pos.getSize();
                Component selectionCmp = renderer.getListCellRendererComponent(this, getModel().getItemAt(i), i, i == getCurrentSelected());
                renderComponentBackground(g, selectionCmp, pos.getX(), pos.getY(), size.getWidth(), size.getHeight());
                shouldBreak = true;
            } else {
                // this is relevant only if the List is not fixed.
                if (shouldBreak && (fixedSelection < FIXED_NONE_BOUNDRY)) {
                    break;
                }
            }
        }
    } else {
        T valueAt0 = getModel().getItemAt(0);
        Component selectionCmp;
        int selectedIndex = getSelectedIndex();
        if (selectedIndex > -1 && selectedIndex < numOfcomponents) {
            // this is essential otherwise we constantly ticker based on the value of the first entry
            selectionCmp = renderer.getListCellRendererComponent(this, getModel().getItemAt(selectedIndex), 0, true);
        } else {
            selectionCmp = renderer.getListCellRendererComponent(this, valueAt0, 0, true);
        }
        Component unselectedCmp = renderer.getListCellRendererComponent(this, valueAt0, 0, false);
        for (int i = startingPoint; i < numOfcomponents; i++) {
            // skip on the selected
            if (i == getCurrentSelected() && animationPosition == 0) {
                if (!shouldBreak) {
                    startOffset = i;
                }
                endOffset = i;
                shouldBreak = true;
                continue;
            }
            calculateComponentPosition(i, width, pos, rendererSize, getElementSize(true, true), i <= getCurrentSelected());
            // if the renderer is in the clipping region
            if (pos.intersects(clipX, clipY, clipWidth, clipHeight)) {
                if (!shouldBreak) {
                    startOffset = i;
                }
                endOffset = i;
                if (i == getCurrentSelected()) {
                    Dimension size = pos.getSize();
                    renderComponentBackground(g, selectionCmp, pos.getX(), pos.getY(), size.getWidth(), size.getHeight());
                } else {
                    Dimension size = pos.getSize();
                    renderComponentBackground(g, unselectedCmp, pos.getX(), pos.getY(), size.getWidth(), size.getHeight());
                }
                shouldBreak = true;
            } else {
                // this is relevant only if the List is not fixed.
                if (shouldBreak && (fixedSelection < FIXED_NONE_BOUNDRY)) {
                    break;
                }
            }
        }
    }
    boolean shouldRendererSelectedEntry = (renderer.getListFocusComponent(this) == null && (fixedSelection < FIXED_NONE_BOUNDRY)) || animationPosition == 0 && model.getSize() > 0;
    Rectangle selectedPos = new Rectangle();
    calculateComponentPosition(getCurrentSelected(), width, selectedPos, rendererSize, getElementSize(true, true), true);
    Dimension size = selectedPos.getSize();
    int curSel = getCurrentSelected();
    if (shouldRendererSelectedEntry && curSel > -1 && curSel < model.getSize()) {
        Component selected = renderer.getListCellRendererComponent(this, model.getItemAt(getCurrentSelected()), getCurrentSelected(), true);
        renderComponentBackground(g, selected, selectedPos.getX(), selectedPos.getY(), size.getWidth(), size.getHeight());
    }
    if (paintFocusBehindList) {
        paintFocus(g, width, pos, rendererSize);
    }
    for (int i = startOffset; i <= endOffset; i++) {
        // skip on the selected
        if (i == getCurrentSelected() && animationPosition == 0) {
            continue;
        }
        calculateComponentPosition(i, width, pos, rendererSize, getElementSize(true, true), i <= getCurrentSelected());
        if (pos.intersects(clipX, clipY, clipWidth, clipHeight)) {
            T value = model.getItemAt(i);
            Component cmp = renderer.getListCellRendererComponent(this, value, i, false);
            cmp.setCellRenderer(true);
            Dimension sizeC = pos.getSize();
            renderComponent(g, cmp, pos.getX(), pos.getY(), sizeC.getWidth(), sizeC.getHeight());
        }
    }
    // if the animation has finished draw the selected element
    if (shouldRendererSelectedEntry) {
        Component selected = renderer.getListCellRendererComponent(this, model.getItemAt(getCurrentSelected()), getCurrentSelected(), true);
        renderComponent(g, selected, selectedPos.getX(), selectedPos.getY(), size.getWidth(), size.getHeight());
    }
    if (!paintFocusBehindList) {
        paintFocus(g, width, pos, rendererSize);
    }
    g.translate(-xTranslate, -yTranslate);
    if (spinnerOverlay != null) {
        if (spinnerOverlay.getBorder() != null) {
            spinnerOverlay.getBorder().paintBorderBackground(g, this);
            spinnerOverlay.getBorder().paint(g, this);
        } else {
            spinnerOverlay.getBgPainter().paint(g, getBounds());
        }
    }
}

Example 79 with List

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

the class MenuBar method createCommandComponent.

/**
 * Creates the component containing the commands within the given vector
 * used for showing the menu dialog, this method calls the createCommandList
 * method by default however it allows more elaborate menu creation.
 *
 * @param commands list of command objects
 * @return Component that will result in the parent menu dialog recieving a command event
 */
protected Component createCommandComponent(Vector commands) {
    UIManager manager = parent.getUIManager();
    // Create a touch based menu interface
    if (manager.getLookAndFeel().isTouchMenus()) {
        Container menu = new Container();
        menu.setScrollableY(true);
        for (int iter = 0; iter < commands.size(); iter++) {
            Command c = (Command) commands.elementAt(iter);
            menu.addComponent(createTouchCommandButton(c));
        }
        if (!manager.isThemeConstant("touchCommandFlowBool", false)) {
            int cols = calculateTouchCommandGridColumns(menu);
            if (cols > getCommandCount()) {
                cols = getCommandCount();
            }
            int rows = Math.max(1, getCommandCount() / cols + (getCommandCount() % cols != 0 ? 1 : 0));
            if (rows > 1) {
                // try to prevent too many columns concentraiting within a single row
                int remainingColumns = (rows * cols) % getCommandCount();
                int newCols = cols;
                int newRows = rows;
                while (remainingColumns != 0 && remainingColumns > 1 && newCols >= 2) {
                    newCols--;
                    newRows = Math.max(1, getCommandCount() / newCols + (getCommandCount() % newCols != 0 ? 1 : 0));
                    if (newRows != rows) {
                        break;
                    }
                    remainingColumns = (newRows * newCols) % getCommandCount();
                }
                if (newRows == rows) {
                    cols = newCols;
                    rows = newRows;
                }
            }
            GridLayout g = new GridLayout(rows, cols);
            g.setFillLastRow(manager.isThemeConstant("touchCommandFillBool", true));
            menu.setLayout(g);
        } else {
            ((FlowLayout) menu.getLayout()).setFillRows(true);
        }
        menu.setPreferredW(Display.getInstance().getDisplayWidth());
        return menu;
    }
    return createCommandList(commands);
}

Example 80 with List

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

the class ResetableTextWatcher method showTextEditorAgain.

/**
 * Shows the native text field again after it has been hidden in async edit mode.
 */
private void showTextEditorAgain() {
    if (!mIsEditing || !isTextEditorHidden()) {
        return;
    }
    textEditorHidden = false;
    final TextArea ta = mEditText.mTextArea;
    // changed since the native aread was hidden.
    synchronized (this) {
        inputBuffer = new ArrayList<TextChange>();
    }
    // We are probably not on the EDT.  We need to be on the EDT to
    // safely get text from the textarea for synchronization.
    Display.getInstance().callSerially(new Runnable() {

        public void run() {
            // and the editing text area hasn't changed since we issued this call.
            if (mIsEditing && mEditText != null && mEditText.mTextArea == ta) {
                final String text = ta.getText();
                final int cursorPos = ta.getCursorPosition();
                // Now that we have our text from the CN1 text area, we need to be on the
                // Android UI thread in order to set the text of the native text editor.
                impl.getActivity().runOnUiThread(new Runnable() {

                    public void run() {
                        // and the editing text area hasn't changed since we issued this call.
                        if (mIsEditing && mEditText != null && mEditText.mTextArea == ta) {
                            // so that we don't find it in an inconsistent state.
                            synchronized (InPlaceEditView.this) {
                                // Let's record the cursor positions of the native
                                // text editor in case we need to use them after synchronizing
                                // with the CN1 textarea.
                                int start = cursorPos;
                                int end = cursorPos;
                                /*
                                    if (!inputBuffer.isEmpty()) {
                                        // If the input buffer isn't empty, then our start
                                        // and end positions will be "wonky"
                                        start = end = inputBuffer.get(0).atPos;

                                        // If the first change was a delete, then the atPos
                                        // will point to the beginning of the deleted section
                                        // so we need to adjust the end point to be *after*
                                        // the deleted section to begin.
                                        if (inputBuffer.get(0).deleteLength > 0) {
                                            end = start = end + inputBuffer.get(0).deleteLength;
                                        }
                                    }
                                    */
                                StringBuilder buf = new StringBuilder();
                                buf.append(text);
                                // Loop through any pending changes in the input buffer
                                // (I.e. key strokes that have occurred since we initiated
                                // this async callback hell!!)
                                List<TextChange> tinput = inputBuffer;
                                if (tinput != null) {
                                    for (TextChange change : tinput) {
                                        // end.
                                        if (change.textToAppend != null) {
                                            if (end >= 0 && end <= buf.length()) {
                                                buf.insert(end, change.textToAppend);
                                                end += change.textToAppend.length();
                                                start = end;
                                            } else {
                                                buf.append(change.textToAppend);
                                                end = buf.length();
                                                start = end;
                                            }
                                        } else // The change is "deleted" text.
                                        if (change.deleteLength > 0) {
                                            if (end >= change.deleteLength && end <= buf.length()) {
                                                buf.delete(end - change.deleteLength, end);
                                                end -= change.deleteLength;
                                                start = end;
                                            } else if (end > 0 && end < change.deleteLength) {
                                                buf.delete(0, end);
                                                end = 0;
                                                start = end;
                                            }
                                        }
                                    }
                                }
                                // Important:  Clear the input buffer so that the TextWatcher
                                // knows to stop filling it up.  We only need the inputBuffer
                                // to keep input between the original showTextEditorAgain() call
                                // and here.
                                inputBuffer = null;
                                mEditText.setText(buf.toString());
                                if (start < 0 || start > mEditText.getText().length()) {
                                    start = mEditText.getText().length();
                                }
                                if (end < 0 || end > mEditText.getText().length()) {
                                    end = mEditText.getText().length();
                                }
                                // Update the caret in the edit text field so we can continue.
                                mEditText.setSelection(start, end);
                            }
                        }
                    }
                });
            }
        }
    });
    reLayoutEdit(true);
    repaintTextEditor(true);
}