Examples with ListView org.apache.pivot.wtk.ListView used on opensource projects

Example 26 with ListView

use of org.apache.pivot.wtk.ListView in project pivot by apache.

the class TerraListViewSkin method mouseWheel.

@Override
public boolean mouseWheel(Component component, Mouse.ScrollType scrollType, int scrollAmount, int wheelRotation, int x, int y) {
    ListView listView = (ListView) getComponent();
    if (highlightIndex != -1) {
        Bounds itemBounds = getItemBounds(highlightIndex);
        highlightIndex = -1;
        if (listView.getSelectMode() != ListView.SelectMode.NONE && showHighlight) {
            repaintComponent(itemBounds.x, itemBounds.y, itemBounds.width, itemBounds.height, true);
        }
    }
    return super.mouseWheel(component, scrollType, scrollAmount, wheelRotation, x, y);
}

Example 27 with ListView

use of org.apache.pivot.wtk.ListView in project pivot by apache.

the class TerraListViewSkin method layout.

@Override
public void layout() {
    ListView listView = (ListView) getComponent();
    @SuppressWarnings("unchecked") List<Object> listData = (List<Object>) listView.getListData();
    ListView.ItemRenderer itemRenderer = listView.getItemRenderer();
    if (variableItemHeight) {
        int width = getWidth();
        int checkboxHeight = 0;
        if (listView.getCheckmarksEnabled()) {
            checkboxHeight = CHECKBOX.getHeight() + checkboxPadding.getHeight();
        }
        int n = listData.getLength();
        itemBoundaries = new ArrayList<>(n);
        int itemY = 0;
        for (int i = 0; i < n; i++) {
            Object item = listData.get(i);
            int itemWidth = width;
            int itemX = 0;
            Button.State state = Button.State.UNSELECTED;
            if (listView.getCheckmarksEnabled()) {
                if (listView.getAllowTriStateCheckmarks()) {
                    state = listView.getItemCheckmarkState(i);
                } else {
                    state = listView.isItemChecked(i) ? Button.State.SELECTED : Button.State.UNSELECTED;
                }
                itemX = CHECKBOX.getWidth() + checkboxPadding.getWidth();
                itemWidth -= itemX;
            }
            itemRenderer.render(item, i, listView, false, state, false, false);
            int itemHeight = itemRenderer.getPreferredHeight(itemWidth);
            if (listView.getCheckmarksEnabled()) {
                itemHeight = Math.max(itemHeight, checkboxHeight);
            }
            itemY += itemHeight;
            itemBoundaries.add(itemY);
        }
    } else {
        itemRenderer.render(null, -1, listView, false, Button.State.UNSELECTED, false, false);
        fixedItemHeight = itemRenderer.getPreferredHeight(-1);
        if (listView.getCheckmarksEnabled()) {
            fixedItemHeight = Math.max(CHECKBOX.getHeight() + checkboxPadding.getHeight(), fixedItemHeight);
        }
    }
    if (validateSelection) {
        // Ensure that the selection is visible
        Sequence<Span> selectedRanges = listView.getSelectedRanges();
        if (selectedRanges.getLength() > 0) {
            int rangeStart = selectedRanges.get(0).start;
            int rangeEnd = selectedRanges.get(selectedRanges.getLength() - 1).end;
            Bounds selectionBounds = getItemBounds(rangeStart);
            selectionBounds = selectionBounds.union(getItemBounds(rangeEnd));
            Bounds visibleSelectionBounds = listView.getVisibleArea(selectionBounds);
            if (visibleSelectionBounds != null && visibleSelectionBounds.height < selectionBounds.height) {
                listView.scrollAreaToVisible(selectionBounds);
            }
        }
    }
    validateSelection = false;
}

Example 28 with ListView

use of org.apache.pivot.wtk.ListView in project pivot by apache.

the class TerraListViewSkin method getBaseline.

@Override
public int getBaseline(int width, int height) {
    ListView listView = (ListView) getComponent();
    int baseline = -1;
    int clientWidth = width;
    if (listView.getCheckmarksEnabled()) {
        clientWidth = Math.max(clientWidth - (CHECKBOX.getWidth() + checkboxPadding.getWidth()), 0);
    }
    ListView.ItemRenderer itemRenderer = listView.getItemRenderer();
    @SuppressWarnings("unchecked") List<Object> listData = (List<Object>) listView.getListData();
    if (variableItemHeight && listData.getLength() > 0) {
        itemRenderer.render(listData.get(0), 0, listView, false, Button.State.UNSELECTED, false, false);
        int itemHeight = itemRenderer.getPreferredHeight(clientWidth);
        if (listView.getCheckmarksEnabled()) {
            itemHeight = Math.max(CHECKBOX.getHeight() + checkboxPadding.getHeight(), itemHeight);
        }
        baseline = itemRenderer.getBaseline(clientWidth, itemHeight);
    } else {
        itemRenderer.render(null, -1, listView, false, Button.State.UNSELECTED, false, false);
        int fixedItemHeightLocal = itemRenderer.getPreferredHeight(-1);
        if (listView.getCheckmarksEnabled()) {
            fixedItemHeightLocal = Math.max(CHECKBOX.getHeight() + checkboxPadding.getHeight(), fixedItemHeightLocal);
        }
        baseline = itemRenderer.getBaseline(clientWidth, fixedItemHeightLocal);
    }
    return baseline;
}