CoolBar

Instances of this class provide an area for dynamically positioning the items they contain. <p> The item children that may be added to instances of this class must be of type <code>CoolItem</code>. </p><p> Note that although this class is a subclass of <code>Composite</code>, it does not make sense to add <code>Control</code> children to it, or set a layout on it. </p><p> <dl> <dt><b>Styles:</b></dt> <dd>FLAT, HORIZONTAL, VERTICAL</dd> <dt><b>Events:</b></dt> <dd>(none)</dd> </dl> </p><p> Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. </p><p> IMPORTANT: This class is <em>not</em> intended to be subclassed. </p>

@see <a href="http://www.eclipse.org/swt/snippets/#coolbar">CoolBar snippets</a> @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>

class CoolBar : Composite {

alias computeSize = Composite.computeSize;

alias setCursor = Composite.setCursor;

CoolItem[][] items;

CoolItem[] originalItems;

Cursor hoverCursor;

Cursor dragCursor;

Cursor cursor;

CoolItem dragging;

int mouseXOffset;

int itemXOffset;

bool isLocked;

bool inDispose;

int ROW_SPACING;

int CLICK_DISTANCE;

int DEFAULT_COOLBAR_WIDTH;

int DEFAULT_COOLBAR_HEIGHT;

this(Composite parent, int style);

static int checkStyle(int style);

void _setCursor(Cursor cursor);

void checkSubclass();

Point computeSize(int wHint, int hHint, bool changed);

CoolItem getGrabbedItem(int x, int y);

CoolItem getItem(int index);

int getItemCount();

CoolItem[] getItems();

Point findItem(CoolItem item);

void fixEvent(Event event);

Rectangle fixRectangle(int x, int y, int width, int height);

Point fixPoint(int x, int y);

int indexOf(CoolItem item);

void insertItemIntoRow(CoolItem item, int rowIndex, int x_root);

void internalRedraw(int x, int y, int width, int height);

void createItem(CoolItem item, int index);

void destroyItem(CoolItem item);

void moveDown(CoolItem item, int x_root);

void moveLeft(CoolItem item, int pixels);

void moveRight(CoolItem item, int pixels);

void moveUp(CoolItem item, int x_root);

void onDispose(Event event);

void onMouseDown(Event event);

void onMouseExit();

void onMouseMove(Event event);

void onMouseUp(Event event);

void onMouseDoubleClick(Event event);

void onPaint(Event event);

void onResize();

void removeControl(Control control);

void removeItemFromRow(CoolItem item, int rowIndex, bool disposed);

int layoutItems();

void relayout();

int[] getItemOrder();

void setItemOrder(int[] itemOrder);

Point[] getItemSizes();

void setItemSizes(Point[] sizes);

bool getLocked();

int getWidth();

int[] getWrapIndices();

void setLocked(bool locked);

void setWrapIndices(int[] indices);

void setCursor(Cursor cursor);

void setItemLayout(int[] itemOrder, int[] wrapIndices, Point[] sizes);

void wrapItems(int maxWidth);

}

Constructors

this this(Composite parent, int style): Constructs a new instance of this class given its parent and a style value describing its behavior and appearance. <p> The style value is either one of the style constants defined in class <code>SWT</code> which is applicable to instances of this class, or must be built by <em>bitwise OR</em>'ing together (that is, using the <code>int</code> "|" operator) two or more of those <code>SWT</code> style constants. The class description lists the style constants that are applicable to the class. Style bits are also inherited from superclasses. </p>

Members

Aliases

computeSize alias computeSize = Composite.computeSize: Undocumented in source.
setCursor alias setCursor = Composite.setCursor: Undocumented in source.

Functions

_setCursor void _setCursor(Cursor cursor): Undocumented in source. Be warned that the author may not have intended to support it.
checkSubclass void checkSubclass(): Undocumented in source. Be warned that the author may not have intended to support it.
computeSize Point computeSize(int wHint, int hHint, bool changed): Undocumented in source. Be warned that the author may not have intended to support it.
createItem void createItem(CoolItem item, int index): Undocumented in source. Be warned that the author may not have intended to support it.
destroyItem void destroyItem(CoolItem item): Undocumented in source. Be warned that the author may not have intended to support it.
findItem Point findItem(CoolItem item): Undocumented in source. Be warned that the author may not have intended to support it.
fixEvent void fixEvent(Event event): Undocumented in source. Be warned that the author may not have intended to support it.
fixPoint Point fixPoint(int x, int y): Undocumented in source. Be warned that the author may not have intended to support it.
fixRectangle Rectangle fixRectangle(int x, int y, int width, int height): Undocumented in source. Be warned that the author may not have intended to support it.
getGrabbedItem CoolItem getGrabbedItem(int x, int y): Undocumented in source. Be warned that the author may not have intended to support it.
getItem CoolItem getItem(int index): Returns the item that is currently displayed at the given, zero-relative index. Throws an exception if the index is out of range.
getItemCount int getItemCount(): Returns the number of items contained in the receiver.
getItemOrder int[] getItemOrder(): Returns an array of zero-relative ints that map the creation order of the receiver's items to the order in which they are currently being displayed. <p> Specifically, the indices of the returned array represent the current visual order of the items, and the contents of the array represent the creation order of the items. </p><p> Note: This is not the actual structure used by the receiver to maintain its list of items, so modifying the array will not affect the receiver. </p>
getItemSizes Point[] getItemSizes(): Returns an array of points whose x and y coordinates describe the widths and heights (respectively) of the items in the receiver in the order in which they are currently being displayed.
getItems CoolItem[] getItems(): Returns an array of <code>CoolItem</code>s in the order in which they are currently being displayed. <p> Note: This is not the actual structure used by the receiver to maintain its list of items, so modifying the array will not affect the receiver. </p>
getLocked bool getLocked(): Returns whether or not the receiver is 'locked'. When a coolbar is locked, its items cannot be repositioned.
getWidth int getWidth(): Undocumented in source. Be warned that the author may not have intended to support it.
getWrapIndices int[] getWrapIndices(): Returns an array of ints that describe the zero-relative indices of any item(s) in the receiver that will begin on a new row. The 0th visible item always begins the first row, therefore it does not count as a wrap index.
indexOf int indexOf(CoolItem item): Searches the receiver's items in the order they are currently being displayed, starting at the first item (index 0), until an item is found that is equal to the argument, and returns the index of that item. If no item is found, returns -1.
insertItemIntoRow void insertItemIntoRow(CoolItem item, int rowIndex, int x_root): Insert the item into the row. Adjust the x and width values appropriately.
internalRedraw void internalRedraw(int x, int y, int width, int height): Undocumented in source. Be warned that the author may not have intended to support it.
layoutItems int layoutItems(): Return the height of the bar after it has been properly laid out for the given width.
moveDown void moveDown(CoolItem item, int x_root): Undocumented in source. Be warned that the author may not have intended to support it.
moveLeft void moveLeft(CoolItem item, int pixels): Undocumented in source. Be warned that the author may not have intended to support it.
moveRight void moveRight(CoolItem item, int pixels): Undocumented in source. Be warned that the author may not have intended to support it.
moveUp void moveUp(CoolItem item, int x_root): Undocumented in source. Be warned that the author may not have intended to support it.
onDispose void onDispose(Event event): Undocumented in source. Be warned that the author may not have intended to support it.
onMouseDoubleClick void onMouseDoubleClick(Event event): Undocumented in source. Be warned that the author may not have intended to support it.
onMouseDown void onMouseDown(Event event): Undocumented in source. Be warned that the author may not have intended to support it.
onMouseExit void onMouseExit(): Undocumented in source. Be warned that the author may not have intended to support it.
onMouseMove void onMouseMove(Event event): Undocumented in source. Be warned that the author may not have intended to support it.
onMouseUp void onMouseUp(Event event): Undocumented in source. Be warned that the author may not have intended to support it.
onPaint void onPaint(Event event): Undocumented in source. Be warned that the author may not have intended to support it.
onResize void onResize(): Undocumented in source. Be warned that the author may not have intended to support it.
relayout void relayout(): Undocumented in source. Be warned that the author may not have intended to support it.
removeControl void removeControl(Control control): Undocumented in source. Be warned that the author may not have intended to support it.
removeItemFromRow void removeItemFromRow(CoolItem item, int rowIndex, bool disposed): Remove the item from the row. Adjust the x and width values appropriately.
setCursor void setCursor(Cursor cursor): Undocumented in source. Be warned that the author may not have intended to support it.
setItemLayout void setItemLayout(int[] itemOrder, int[] wrapIndices, Point[] sizes): Sets the receiver's item order, wrap indices, and item sizes all at once. This method is typically used to restore the displayed state of the receiver to a previously stored state. <p> The item order is the order in which the items in the receiver should be displayed, given in terms of the zero-relative ordering of when the items were added. </p><p> The wrap indices are the indices of all item(s) in the receiver that will begin on a new row. The indices are given in the order specified by the item order. The 0th item always begins the first row, therefore it does not count as a wrap index. If wrap indices is null or empty, the items will be placed on one line. </p><p> The sizes are specified in an array of points whose x and y coordinates describe the new widths and heights (respectively) of the receiver's items in the order specified by the item order. </p>
setItemOrder void setItemOrder(int[] itemOrder): Undocumented in source. Be warned that the author may not have intended to support it.
setItemSizes void setItemSizes(Point[] sizes): Undocumented in source. Be warned that the author may not have intended to support it.
setLocked void setLocked(bool locked): Sets whether or not the receiver is 'locked'. When a coolbar is locked, its items cannot be repositioned.
setWrapIndices void setWrapIndices(int[] indices): Sets the indices of all item(s) in the receiver that will begin on a new row. The indices are given in the order in which they are currently being displayed. The 0th item always begins the first row, therefore it does not count as a wrap index. If indices is null or empty, the items will be placed on one line.
wrapItems void wrapItems(int maxWidth): Undocumented in source. Be warned that the author may not have intended to support it.

Static functions

checkStyle int checkStyle(int style): Undocumented in source. Be warned that the author may not have intended to support it.

Static variables

CLICK_DISTANCE int CLICK_DISTANCE;: Undocumented in source.
DEFAULT_COOLBAR_HEIGHT int DEFAULT_COOLBAR_HEIGHT;: Undocumented in source.
DEFAULT_COOLBAR_WIDTH int DEFAULT_COOLBAR_WIDTH;: Undocumented in source.
ROW_SPACING int ROW_SPACING;
cursor Cursor cursor;
dragCursor Cursor dragCursor;: Undocumented in source.

Variables

dragging CoolItem dragging;: Undocumented in source.
hoverCursor Cursor hoverCursor;: Undocumented in source.
inDispose bool inDispose;: Undocumented in source.
isLocked bool isLocked;
itemXOffset int itemXOffset;: Undocumented in source.
items CoolItem[][] items;: Undocumented in source.
mouseXOffset int mouseXOffset;: Undocumented in source.
originalItems CoolItem[] originalItems;: Undocumented in source.

Inherited Members

From Composite

computeSize alias computeSize = Scrollable.computeSize: Undocumented in source.
fixStyle alias fixStyle = Scrollable.fixStyle: Undocumented in source.
forceFocus alias forceFocus = Scrollable.forceFocus: Undocumented in source.
gtk_button_press_event alias gtk_button_press_event = Scrollable.gtk_button_press_event: Undocumented in source.
moveAbove alias moveAbove = Scrollable.moveAbove: Undocumented in source.
moveBelow alias moveBelow = Scrollable.moveBelow: Undocumented in source.
setBounds alias setBounds = Scrollable.setBounds: Undocumented in source.
translateMnemonic alias translateMnemonic = Scrollable.translateMnemonic: Undocumented in source.
translateTraversal alias translateTraversal = Scrollable.translateTraversal: Undocumented in source.
embeddedHandle size_t embeddedHandle;: Undocumented in source.
imHandle_ GtkIMContext* imHandle_;: Undocumented in source.
socketHandle GtkWidget* socketHandle;: Undocumented in source.
layout_ Layout layout_;: Undocumented in source.
tabList Control[] tabList;: Undocumented in source.
layoutCount int layoutCount;
backgroundMode int backgroundMode;: Undocumented in source.
NO_INPUT_METHOD String NO_INPUT_METHOD;: Undocumented in source.
checkStyle int checkStyle(int style): Undocumented in source. Be warned that the author may not have intended to support it.
_getChildren Control[] _getChildren(): Undocumented in source. Be warned that the author may not have intended to support it.
_getTabList Control[] _getTabList(): Undocumented in source. Be warned that the author may not have intended to support it.
changed void changed(Control[] changed): Clears any data that has been cached by a Layout for all widgets that are in the parent hierarchy of the changed control up to and including the receiver. If an ancestor does not have a layout, it is skipped.
checkBuffered void checkBuffered(): Undocumented in source. Be warned that the author may not have intended to support it.
checkSubclass void checkSubclass(): Undocumented in source. Be warned that the author may not have intended to support it.
childStyle GtkStyle* childStyle(): Undocumented in source. Be warned that the author may not have intended to support it.
computeSize Point computeSize(int wHint, int hHint, bool changed): Undocumented in source. Be warned that the author may not have intended to support it.
computeTabList Control[] computeTabList(): Undocumented in source. Be warned that the author may not have intended to support it.
createHandle void createHandle(int index): Undocumented in source. Be warned that the author may not have intended to support it.
createHandle void createHandle(int index, bool fixed, bool scrolled): Undocumented in source. Be warned that the author may not have intended to support it.
deregister void deregister(): Undocumented in source. Be warned that the author may not have intended to support it.
drawBackground void drawBackground(GC gc, int x, int y, int width, int height): Undocumented in source. Be warned that the author may not have intended to support it.
enableWidget void enableWidget(bool enabled): Undocumented in source. Be warned that the author may not have intended to support it.
findDeferredControl Composite findDeferredControl(): Undocumented in source. Be warned that the author may not have intended to support it.
findMenus Menu[] findMenus(Control control): Undocumented in source. Be warned that the author may not have intended to support it.
fixChildren void fixChildren(Shell newShell, Shell oldShell, Decorations newDecorations, Decorations oldDecorations, Menu[] menus): Undocumented in source. Be warned that the author may not have intended to support it.
fixModal void fixModal(GtkWidget* group, GtkWidget* modalGroup): Undocumented in source. Be warned that the author may not have intended to support it.
fixStyle void fixStyle(): Undocumented in source. Be warned that the author may not have intended to support it.
fixTabList void fixTabList(Control control): Undocumented in source. Be warned that the author may not have intended to support it.
fixZOrder void fixZOrder(): Undocumented in source. Be warned that the author may not have intended to support it.
focusHandle GtkWidget* focusHandle(): Undocumented in source. Be warned that the author may not have intended to support it.
forceFocus bool forceFocus(GtkWidget* focusHandle): Undocumented in source. Be warned that the author may not have intended to support it.
getBackgroundMode int getBackgroundMode(): Returns the receiver's background drawing mode. This will be one of the following constants defined in class <code>SWT</code>: <code>INHERIT_NONE</code>, <code>INHERIT_DEFAULT</code>, <code>INHERTIT_FORCE</code>.
getChildren Control[] getChildren(): Returns a (possibly empty) array containing the receiver's children. Children are returned in the order that they are drawn. The topmost control appears at the beginning of the array. Subsequent controls draw beneath this control and appear later in the array. <p> Note: This is not the actual structure used by the receiver to maintain its list of children, so modifying the array will not affect the receiver. </p>
getChildrenCount int getChildrenCount(): Undocumented in source. Be warned that the author may not have intended to support it.
getClientArea Rectangle getClientArea(): Undocumented in source. Be warned that the author may not have intended to support it.
getClientWidth int getClientWidth(): Undocumented in source. Be warned that the author may not have intended to support it.
getLayout Layout getLayout(): Returns layout which is associated with the receiver, or null if one has not been set.
getLayoutDeferred bool getLayoutDeferred(): Returns <code>true</code> if the receiver has deferred the performing of layout, and <code>false</code> otherwise.
getTabList Control[] getTabList(): Gets the (possibly empty) tabbing order for the control.
gtk_button_press_event int gtk_button_press_event(GtkWidget* widget, GdkEventButton* event): Undocumented in source. Be warned that the author may not have intended to support it.
gtk_expose_event int gtk_expose_event(GtkWidget* widget, GdkEventExpose* eventPtr): Undocumented in source. Be warned that the author may not have intended to support it.
gtk_key_press_event int gtk_key_press_event(GtkWidget* widget, GdkEventKey* event): Undocumented in source. Be warned that the author may not have intended to support it.
gtk_focus int gtk_focus(GtkWidget* widget, ptrdiff_t directionType): Undocumented in source. Be warned that the author may not have intended to support it.
gtk_focus_in_event int gtk_focus_in_event(GtkWidget* widget, GdkEventFocus* event): Undocumented in source. Be warned that the author may not have intended to support it.
gtk_focus_out_event int gtk_focus_out_event(GtkWidget* widget, GdkEventFocus* event): Undocumented in source. Be warned that the author may not have intended to support it.
gtk_map int gtk_map(GtkWidget* widget): Undocumented in source. Be warned that the author may not have intended to support it.
gtk_realize int gtk_realize(GtkWidget* widget): Undocumented in source. Be warned that the author may not have intended to support it.
gtk_scroll_child int gtk_scroll_child(GtkWidget* widget, ptrdiff_t scrollType, ptrdiff_t horizontal): Undocumented in source. Be warned that the author may not have intended to support it.
gtk_style_set int gtk_style_set(GtkWidget* widget, ptrdiff_t previousStyle): Undocumented in source. Be warned that the author may not have intended to support it.
hasBorder bool hasBorder(): Undocumented in source. Be warned that the author may not have intended to support it.
hookEvents void hookEvents(): Undocumented in source. Be warned that the author may not have intended to support it.
hooksKeys bool hooksKeys(): Undocumented in source. Be warned that the author may not have intended to support it.
imHandle GtkIMContext* imHandle(): Undocumented in source. Be warned that the author may not have intended to support it.
isLayoutDeferred bool isLayoutDeferred(): Returns <code>true</code> if the receiver or any ancestor up to and including the receiver's nearest ancestor shell has deferred the performing of layouts. Otherwise, <code>false</code> is returned.
isTabGroup bool isTabGroup(): Undocumented in source. Be warned that the author may not have intended to support it.
layout void layout(): If the receiver has a layout, asks the layout to <em>lay out</em> (that is, set the size and location of) the receiver's children. If the receiver does not have a layout, do nothing. <p> This is equivalent to calling <code>layout(true)</code>. </p> <p> Note: Layout is different from painting. If a child is moved or resized such that an area in the parent is exposed, then the parent will paint. If no child is affected, the parent will not paint. </p>
layout void layout(bool changed): If the receiver has a layout, asks the layout to <em>lay out</em> (that is, set the size and location of) the receiver's children. If the argument is <code>true</code> the layout must not rely on any information it has cached about the immediate children. If it is <code>false</code> the layout may (potentially) optimize the work it is doing by assuming that none of the receiver's children has changed state since the last layout. If the receiver does not have a layout, do nothing. <p> If a child is resized as a result of a call to layout, the resize event will invoke the layout of the child. The layout will cascade down through all child widgets in the receiver's widget tree until a child is encountered that does not resize. Note that a layout due to a resize will not flush any cached information (same as <code>layout(false)</code>). </p> <p> Note: Layout is different from painting. If a child is moved or resized such that an area in the parent is exposed, then the parent will paint. If no child is affected, the parent will not paint. </p>
layout void layout(bool changed, bool all): If the receiver has a layout, asks the layout to <em>lay out</em> (that is, set the size and location of) the receiver's children. If the changed argument is <code>true</code> the layout must not rely on any information it has cached about its children. If it is <code>false</code> the layout may (potentially) optimize the work it is doing by assuming that none of the receiver's children has changed state since the last layout. If the all argument is <code>true</code> the layout will cascade down through all child widgets in the receiver's widget tree, regardless of whether the child has changed size. The changed argument is applied to all layouts. If the all argument is <code>false</code>, the layout will <em>not</em> cascade down through all child widgets in the receiver's widget tree. However, if a child is resized as a result of a call to layout, the resize event will invoke the layout of the child. Note that a layout due to a resize will not flush any cached information (same as <code>layout(false)</code>). </p> <p> Note: Layout is different from painting. If a child is moved or resized such that an area in the parent is exposed, then the parent will paint. If no child is affected, the parent will not paint. </p>
layout void layout(Control[] changed): Forces a lay out (that is, sets the size and location) of all widgets that are in the parent hierarchy of the changed control up to and including the receiver. The layouts in the hierarchy must not rely on any information cached about the changed control or any of its ancestors. The layout may (potentially) optimize the work it is doing by assuming that none of the peers of the changed control have changed state since the last layout. If an ancestor does not have a layout, skip it. <p> Note: Layout is different from painting. If a child is moved or resized such that an area in the parent is exposed, then the parent will paint. If no child is affected, the parent will not paint. </p>
markLayout void markLayout(bool changed, bool all): Undocumented in source. Be warned that the author may not have intended to support it.
moveAbove void moveAbove(GtkWidget* child, GtkWidget* sibling): Undocumented in source. Be warned that the author may not have intended to support it.
moveBelow alias moveBelow = Scrollable.moveBelow: Undocumented in source.
moveBelow void moveBelow(GtkWidget* child, GtkWidget* sibling): Undocumented in source. Be warned that the author may not have intended to support it.
moveChildren void moveChildren(int oldWidth): Undocumented in source. Be warned that the author may not have intended to support it.
minimumSize Point minimumSize(int wHint, int hHint, bool changed): Undocumented in source. Be warned that the author may not have intended to support it.
parentingHandle GtkWidget* parentingHandle(): Undocumented in source. Be warned that the author may not have intended to support it.
printWidget void printWidget(GC gc, GdkDrawable* drawable, int depth, int x, int y): Undocumented in source. Be warned that the author may not have intended to support it.
redrawChildren void redrawChildren(): Undocumented in source. Be warned that the author may not have intended to support it.
register void register(): Undocumented in source. Be warned that the author may not have intended to support it.
releaseChildren void releaseChildren(bool destroy): Undocumented in source. Be warned that the author may not have intended to support it.
releaseHandle void releaseHandle(): Undocumented in source. Be warned that the author may not have intended to support it.
releaseWidget void releaseWidget(): Undocumented in source. Be warned that the author may not have intended to support it.
removeControl void removeControl(Control control): Undocumented in source. Be warned that the author may not have intended to support it.
resizeHandle void resizeHandle(int width, int height): Undocumented in source. Be warned that the author may not have intended to support it.
setBackgroundMode void setBackgroundMode(int mode): Sets the background drawing mode to the argument which should be one of the following constants defined in class <code>SWT</code>: <code>INHERIT_NONE</code>, <code>INHERIT_DEFAULT</code>, <code>INHERIT_FORCE</code>.
setBounds int setBounds(int x, int y, int width, int height, bool move, bool resize): Undocumented in source. Be warned that the author may not have intended to support it.
setFocus bool setFocus(): Undocumented in source. Be warned that the author may not have intended to support it.
setLayout void setLayout(Layout layout): Sets the layout which is associated with the receiver to be the argument which may be null.
setLayoutDeferred void setLayoutDeferred(bool defer): If the argument is <code>true</code>, causes subsequent layout operations in the receiver or any of its children to be ignored. No layout of any kind can occur in the receiver or any of its children until the flag is set to false. Layout operations that occurred while the flag was <code>true</code> are remembered and when the flag is set to <code>false</code>, the layout operations are performed in an optimized manner. Nested calls to this method are stacked.
setScrollBarVisible bool setScrollBarVisible(ScrollBar bar, bool visible): Undocumented in source. Be warned that the author may not have intended to support it.
setTabGroupFocus bool setTabGroupFocus(bool next): Undocumented in source. Be warned that the author may not have intended to support it.
setTabItemFocus bool setTabItemFocus(bool next): Undocumented in source. Be warned that the author may not have intended to support it.
setTabList void setTabList(Control[] tabList): Sets the tabbing order for the specified controls to match the order that they occur in the argument list.
showWidget void showWidget(): Undocumented in source. Be warned that the author may not have intended to support it.
translateMnemonic bool translateMnemonic(Event event, Control control): Undocumented in source. Be warned that the author may not have intended to support it.
traversalCode int traversalCode(int key, GdkEventKey* event): Undocumented in source. Be warned that the author may not have intended to support it.
translateTraversal bool translateTraversal(GdkEventKey* keyEvent): Undocumented in source. Be warned that the author may not have intended to support it.
updateBackgroundMode void updateBackgroundMode(): Undocumented in source. Be warned that the author may not have intended to support it.
updateLayout void updateLayout(bool all): Undocumented in source. Be warned that the author may not have intended to support it.

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