Package org.apache.pivot.wtk

Examples of org.apache.pivot.wtk.TreeView$NodeRenderer

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    /**
     * Gets the fixed node height of this skin.
     */
    protected int getNodeHeight() {
        TreeView treeView = (TreeView)getComponent();
        TreeView.NodeRenderer nodeRenderer = treeView.getNodeRenderer();
        nodeRenderer.render(null, treeView, false, false,
            TreeView.NodeCheckState.UNCHECKED, false, false);

        int nodeHeight = nodeRenderer.getPreferredHeight(-1);
        if (treeView.getCheckmarksEnabled()) {
            nodeHeight = Math.max(CHECKBOX.getHeight() + (2 * CHECKBOX_VERTICAL_PADDING), nodeHeight);
        }

        return nodeHeight;
    }
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    @Override
    public boolean mouseMove(Component component, int x, int y) {
        boolean consumed = super.mouseMove(component, x, y);

        TreeView treeView = (TreeView)getComponent();

        if (showHighlight
            && treeView.getSelectMode() != TreeView.SelectMode.NONE) {
            NodeInfo previousHighlightedNode = highlightedNode;
            highlightedNode = getNodeInfoAt(y);

            if (highlightedNode != previousHighlightedNode) {
                if (previousHighlightedNode != null) {
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    @Override
    public boolean mouseDown(Component component, Mouse.Button button, int x, int y) {
        boolean consumed = super.mouseDown(component, button, x, y);

        if (!consumed) {
            TreeView treeView = (TreeView)getComponent();
            NodeInfo nodeInfo = getNodeInfoAt(y);

            if (nodeInfo != null
                && !nodeInfo.isDisabled()) {
                int nodeHeight = getNodeHeight();
                int baseNodeX = (nodeInfo.depth - 1) * (indent + spacing);

                int nodeX = baseNodeX + (showBranchControls ? indent + spacing : 0);
                int nodeY = (y / (nodeHeight + VERTICAL_SPACING)) * (nodeHeight + VERTICAL_SPACING);

                int checkboxWidth = CHECKBOX.getWidth();
                int checkboxHeight = CHECKBOX.getHeight();

                int checkboxX = Math.max(indent - checkboxWidth, 0) / 2;
                int checkboxY = (nodeHeight - checkboxHeight) / 2;

                // Only proceed if the user DIDN'T click on a checkbox
                if (!treeView.getCheckmarksEnabled()
                    || x < nodeX + checkboxX
                    || x >= nodeX + checkboxX + checkboxWidth
                    || y < nodeY + checkboxY
                    || y >= nodeY + checkboxY + checkboxHeight) {
                    Path path = nodeInfo.getPath();

                    // See if the user clicked on an expand/collapse control of
                    // a branch. If so, expand/collapse the branch
                    if (showBranchControls
                        && nodeInfo instanceof BranchInfo
                        && x >= baseNodeX
                        && x < baseNodeX + indent) {
                        BranchInfo branchInfo = (BranchInfo)nodeInfo;

                        treeView.setBranchExpanded(path, !branchInfo.isExpanded());
                        consumed = true;
                    }

                    // If we haven't consumed the event, then proceed to manage
                    // the selection state of the node
                    if (!consumed) {
                        TreeView.SelectMode selectMode = treeView.getSelectMode();

                        if (button == Mouse.Button.RIGHT) {
                            if (!treeView.isNodeSelected(path)
                                && selectMode != TreeView.SelectMode.NONE) {
                                treeView.setSelectedPath(path);
                            }
                        } else {
                            if (selectMode == TreeView.SelectMode.SINGLE) {
                                if (nodeInfo.isSelected()
                                    && treeView.isFocused()) {
                                    // Edit the node
                                    editNode = nodeInfo;
                                } else {
                                    // Select the node
                                    treeView.setSelectedPath(path);
                                }
                            } else if (selectMode == TreeView.SelectMode.MULTI) {
                                if (Keyboard.isPressed(Keyboard.Modifier.CTRL)) {
                                    if (nodeInfo.isSelected()) {
                                        treeView.removeSelectedPath(path);
                                    } else {
                                        treeView.addSelectedPath(path);
                                    }
                                } else {
                                    // Replace the selection
                                    treeView.setSelectedPath(path);
                                }
                            }
                        }
                    }
                }
            }

            treeView.requestFocus();
        }

        return consumed;
    }
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    @Override
    public boolean mouseClick(Component component, Mouse.Button button, int x, int y, int count) {
        boolean consumed = super.mouseClick(component, button, x, y, count);

        if (!consumed) {
            TreeView treeView = (TreeView)getComponent();

            NodeInfo nodeInfo = getNodeInfoAt(y);

            if (nodeInfo != null
                && !nodeInfo.isDisabled()) {
                int nodeHeight = getNodeHeight();
                int baseNodeX = (nodeInfo.depth - 1) * (indent + spacing);

                int nodeX = baseNodeX + (showBranchControls ? indent + spacing : 0);
                int nodeY = (y / (nodeHeight + VERTICAL_SPACING)) * (nodeHeight + VERTICAL_SPACING);

                int checkboxWidth = CHECKBOX.getWidth();
                int checkboxHeight = CHECKBOX.getHeight();

                int checkboxX = Math.max(indent - checkboxWidth, 0) / 2;
                int checkboxY = (nodeHeight - checkboxHeight) / 2;

                if (treeView.getCheckmarksEnabled()
                    && x >= nodeX + checkboxX
                    && x < nodeX + checkboxX + checkboxWidth
                    && y >= nodeY + checkboxY
                    && y < nodeY + checkboxY + checkboxHeight) {
                    Path path = nodeInfo.getPath();
                    treeView.setNodeChecked(path, !nodeInfo.isChecked());
                } else {
                    if (editNode != null
                        && count == 1) {
                        TreeView.NodeEditor nodeEditor = treeView.getNodeEditor();

                        if (nodeEditor != null) {
                            nodeEditor.edit(treeView, nodeInfo.getPath());
                        }
                    }
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    @Override
    public boolean keyPressed(Component component, int keyCode, Keyboard.KeyLocation keyLocation) {
        boolean consumed = false;

        TreeView treeView = (TreeView)getComponent();
        TreeView.SelectMode selectMode = treeView.getSelectMode();

        switch (keyCode) {
        case Keyboard.KeyCode.UP: {
            if (selectMode != TreeView.SelectMode.NONE) {
                Path firstSelectedPath = treeView.getFirstSelectedPath();

                int index;
                if (firstSelectedPath != null) {
                    NodeInfo previousSelectedNode = getNodeInfoAt(firstSelectedPath);
                    index = visibleNodes.indexOf(previousSelectedNode);
                } else {
                    // Select the last visible node
                    index = visibleNodes.getLength();
                }

                NodeInfo newSelectedNode = null;
                do {
                    newSelectedNode = (--index >= 0) ? visibleNodes.get(index) : null;
                } while (newSelectedNode != null
                    && newSelectedNode.isDisabled());

                if (newSelectedNode != null) {
                    treeView.setSelectedPath(newSelectedNode.getPath());
                    treeView.scrollAreaToVisible(getNodeBounds(newSelectedNode));
                    consumed = true;
                }
            }

            break;
        }

        case Keyboard.KeyCode.DOWN: {
            if (selectMode != TreeView.SelectMode.NONE) {
                Path lastSelectedPath = treeView.getLastSelectedPath();

                int index;
                if (lastSelectedPath != null) {
                    NodeInfo previousSelectedNode = getNodeInfoAt(lastSelectedPath);
                    index = visibleNodes.indexOf(previousSelectedNode);
                } else {
                    // Select the first visible node
                    index = -1;
                }

                NodeInfo newSelectedNode = null;
                int n = visibleNodes.getLength();
                do {
                    newSelectedNode = (++index <= n - 1) ? visibleNodes.get(index) : null;
                } while (newSelectedNode != null
                    && newSelectedNode.isDisabled());

                if (newSelectedNode != null) {
                    treeView.setSelectedPath(newSelectedNode.getPath());
                    treeView.scrollAreaToVisible(getNodeBounds(newSelectedNode));
                    consumed = true;
                }
            }

            break;
        }

        case Keyboard.KeyCode.LEFT: {
            if (showBranchControls) {
                Sequence<Path> paths = treeView.getSelectedPaths();

                if (paths != null
                    && paths.getLength() > 0) {
                    Path path = paths.get(paths.getLength() - 1);
                    NodeInfo nodeInfo = getNodeInfoAt(path);

                    if (nodeInfo instanceof BranchInfo) {
                        BranchInfo branchInfo = (BranchInfo)nodeInfo;

                        if (branchInfo.isExpanded()) {
                            treeView.collapseBranch(branchInfo.getPath());
                        }
                    }

                    consumed = true;
                }
            }

            break;
        }

        case Keyboard.KeyCode.RIGHT: {
            if (showBranchControls) {
                Sequence<Path> paths = treeView.getSelectedPaths();

                if (paths != null
                    && paths.getLength() > 0) {
                    Path path = paths.get(paths.getLength() - 1);
                    NodeInfo nodeInfo = getNodeInfoAt(path);

                    if (nodeInfo instanceof BranchInfo) {
                        BranchInfo branchInfo = (BranchInfo)nodeInfo;

                        if (!branchInfo.isExpanded()) {
                            treeView.expandBranch(branchInfo.getPath());
                        }
                    }

                    consumed = true;
                }
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    @Override
    public boolean keyReleased(Component component, int keyCode, Keyboard.KeyLocation keyLocation) {
        boolean consumed = false;

        TreeView treeView = (TreeView)getComponent();

        if (keyCode == Keyboard.KeyCode.SPACE) {
            if (treeView.getCheckmarksEnabled()
                && treeView.getSelectMode() == TreeView.SelectMode.SINGLE) {
                Path selectedPath = treeView.getSelectedPath();

                if (selectedPath != null) {
                    treeView.setNodeChecked(selectedPath, !treeView.isNodeChecked(selectedPath));
                }
            }
        } else {
            consumed = super.keyReleased(component, keyCode, keyLocation);
        }
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        return consumed;
    }

    @Override
    public boolean isFocusable() {
        TreeView treeView = (TreeView)getComponent();
        return (treeView.getSelectMode() != TreeView.SelectMode.NONE);
    }
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        return getNodeBounds(nodeInfo);
    }

    @Override
    public int getNodeIndent(int depth) {
        TreeView treeView = (TreeView)getComponent();

        int nodeIndent = (depth - 1) * (indent + spacing);

        if (showBranchControls) {
            nodeIndent += indent + spacing;
        }

        if (treeView.getCheckmarksEnabled()) {
            nodeIndent += Math.max(CHECKBOX.getWidth(), indent) + spacing;
        }

        return nodeIndent;
    }
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