Examples with RemoteLinkage edu.cmu.cs.hcii.cogtool.view.RemoteLinkage used on opensource projects

Example 1 with RemoteLinkage

use of edu.cmu.cs.hcii.cogtool.view.RemoteLinkage in project cogtool by cogtool.

the class FrameEditorMouseState method handleMousePressed.

/**
     * Called on mouse presses
     * Determines if the mouse pressed on a resize widget.
     * Raises a resizeAlert or a mouseOperations alert.
     *
     * Alerts contain X,Y coordinates in 1:1 scale.
     */
protected void handleMousePressed(int x, int y, int state) {
    ui.view.getEditor().getSWTEditorSubstrate().setFocus();
    // Check to see if the pressed event is on the resize handlers.
    // Use the ZOOMED scale because the resize widgets are in the
    // interaction layer and they're not affected by zoom.
    ResizeThumb resize = ui.widgetResizeUnderXY(x, y);
    PotentialFigure pWidget = ui.potentialWidgetUnderXY(x, y);
    RadioButtonSash sash = ui.radioSashUnderXY(x, y);
    // Check to see if the mouse press happened on a resize widget
    if (resize != null) {
        // Need this because we want the actual AREA,
        // not the center of the thumb.
        initialResizeArea = ui.getSelectedWidgetArea();
        // Set the fixed point of the resize
        double fixedX = 0.0;
        double fixedY = 0.0;
        // Move through the possible types and set the fixed point.
        currentResizeHandleType = resize.thumbType;
        switch(resize.thumbType) {
            case FrameEditorUI.TOP_LEFT:
                fixedX = initialResizeArea.x + initialResizeArea.width;
                fixedY = initialResizeArea.y + initialResizeArea.height;
                break;
            case FrameEditorUI.BOTTOM_LEFT:
                fixedX = initialResizeArea.x + initialResizeArea.width;
                fixedY = initialResizeArea.y;
                break;
            case FrameEditorUI.TOP_RIGHT:
                fixedX = initialResizeArea.x;
                fixedY = initialResizeArea.y + initialResizeArea.height;
                break;
            case FrameEditorUI.BOTTOM_RIGHT:
                fixedX = initialResizeArea.x;
                fixedY = initialResizeArea.y;
                break;
            default:
                // and this code wasn't modified.
                throw new IllegalStateException("Unknown type of Resize Thumb selected");
        }
        // Specify the fixed resize point.
        mouseFixedResizeX = fixedX;
        mouseFixedResizeY = fixedY;
        // Set the state to "resize" as the next action.
        // TODO:  Should we implement the other types of resizing?
        int nextState = PotentialResizingWidget;
        setMouseState(nextState);
        // Switch to fast mode rendering for graphical widgets
        setWidgetFastRenderMode(true);
    } else if (sash != null) {
        moveIsVertical = sash.isVertical();
        setMouseState(PotentialMovingGridButtons);
    } else if (pWidget != null) {
        ui.initiateRetitleFigure(pWidget);
    } else {
        // Get whatever graphical widget under x,y
        GraphicalWidget<?> wf = ui.widgetLocatedAtXY(x, y);
        MoveHalo halo = ui.moveHaloUnderXY(x, y);
        RemoteLinkage linkage = ui.linkageUnderXY(x, y);
        GraphicalParentWidget<?, ?> currentParent = null;
        // If SHIFT is held, always treat as start of a drag toggle select.
        if ((state & InputEvent.SHIFT) != 0) {
            setMouseState(PotentialTogglingSelection);
        } else if (wf != null) {
            IWidget widget = wf.getModel();
            SimpleWidgetGroup group = widget.getParentGroup();
            lastClickedWidget = widget;
            if ((state & platformDuplicateModifierKey()) != 0) {
                if (!selection.isElementSelected(widget)) {
                    selection.setSelectedSelnFig(wf);
                }
                if ((group != null) && (group.getOrientation() != SimpleWidgetGroup.FREEFORM) && (selection.getWidgetSelectionCount() == 1)) {
                    setMouseState(PotentialInsertDuplicateWidget);
                } else {
                    setMouseState(PotentialDuplicatingWidget);
                }
            } else {
                if ((group != null) && (group.getOrientation() != SimpleWidgetGroup.FREEFORM)) {
                    if (!selection.isElementSelected(widget)) {
                        selection.setSelectedSelnFig(wf);
                    }
                    setMouseState(PotentialReorderWidget);
                } else // possible move.
                if (selection.isSelectionFigureSelected(wf)) {
                    setMouseState(PotentialMovingSelection);
                } else {
                    selection.setSelectedSelnFig(wf);
                    setMouseState(PotentialMovingWidget);
                }
            }
            if (wf instanceof GraphicalMenuItem) {
                GraphicalMenuItem menuItemFig = (GraphicalMenuItem) wf;
                if (menuItemFig.isSubmenu()) {
                    currentParent = menuItemFig;
                } else {
                    currentParent = menuItemFig.getParentFigure();
                }
            } else if (wf instanceof GraphicalParentWidget<?, ?>) {
                currentParent = (GraphicalParentWidget<?, ?>) wf;
            } else if (wf instanceof GraphicalChildWidget<?, ?>) {
                currentParent = ((GraphicalChildWidget<?, ?>) wf).getParentFigure();
            }
        } else if (halo != null) {
            if (halo instanceof FrameEltGroupHalo) {
                FrameEltGroupHalo groupHalo = (FrameEltGroupHalo) halo;
                if ((state & platformDuplicateModifierKey()) != 0) {
                    if (!selection.isElementSelected(halo.getData())) {
                        selection.setSelectedSelnFig(groupHalo);
                    }
                    setMouseState(PotentialDuplicatingWidget);
                } else {
                    selection.setSelectedSelnFig(groupHalo);
                    setMouseState(PotentialMovingSelection);
                }
            } else {
                /*                if (wf != null) {
                    IWidget widget = wf.getWidgetModel();
                    SimpleWidgetGroup group = widget.getParentGroup();

                    if ((state & platformDuplicateModifierKey()) != 0) {
                        if (! this.selection.isWidgetSelected(widget)) {
                            this.selection.setSelectedWidget(wf);
                        }

                        if ((group != null) &&
                            (group.getOrientation() != SimpleWidgetGroup.FREEFORM) &&
                            (this.selection.getWidgetSelectionCount() == 1))
                        {
                            setMouseState(PotentialInsertDuplicateWidget);
                        }
                        else {
                            setMouseState(PotentialDuplicatingWidget);
                        }
                    }
                    else {
                        setMouseState(PotentialMovingSelection);
                    }
                }
                else { */
                setMouseState(PotentialMovingSelection);
            }
        //                }
        } else if (linkage != null) {
            FrameElement owner = linkage.getOwner();
            IWidget remoteLabel = linkage.getRemoteLabel();
            // Ensure both are selected; if not yet, then set them
            // both selected.
            FrameEltSelnFig<?> ownerRepresentative = isSomeElementSelected(owner);
            if ((!selection.isElementSelected(remoteLabel)) || (ownerRepresentative == null)) {
                if (ownerRepresentative == null) {
                    ownerRepresentative = getRepresentativeElt(owner);
                }
                selection.setSelectedSelnFig(linkage.getRemoteLabelFigure());
                if (ownerRepresentative != null) {
                    selection.selectSelnFig(ownerRepresentative);
                }
            }
            setMouseState(PotentialMovingSelection);
        } else // Otherwise, out in space and SHIFT not held; deselect all and
        // prepare to create
        {
            selection.deselectAll();
            setMouseState(PotentialCreatingWidget);
        }
        ui.hideAllChildren();
        if (currentParent != null) {
            currentParent.openChildren();
            ui.resetVisibleArea();
        }
    }
}