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Warning! This version of documentation is OUTDATED, as it describes an older SDK version! Please switch to the documentation for the latest SDK version.
Warning! This version of documentation describes an old SDK version which is no longer supported! Please upgrade to the latest SDK version.

WidgetTreeBox Class

Warning
UnigineScript is deprecated and will be removed in future releases. Please consider using C#/C++ instead, as these APIs are the preferred ones. Availability of new Engine features in UnigineScipt is not guaranteed, as the current level of support assumes only fixing critical issues.
Inherits: Widget

This class creates a box with a tree-like hierarchy. For example:

Source code (UnigineScript)
int init() {

Gui gui = engine.getGui();

WidgetTreeBox tree = new WidgetTreeBox(gui);

tree.addItem("1st item");  // Add items into the tree.
tree.addItem("2nd item");
tree.addItem("3rd item");
tree.addItem("4th item");

tree.addItemChild(0,1);   // Make a 2nd item a child of the 1st one.
tree.setItemFolded(0,1);  // Collapse children of the 1st child.

WidgetWindow window = new WidgetWindow(gui);  // Create a window.
gui.addChild(window,GUI_ALIGN_CENTER);

window.addChild(tree,GUI_ALIGN_CENTER); // Render a tree in the window.

return 1;
}

As a result, you will get:

WidgetTreeBox in a window

WidgetTreeBox Class

Members


static WidgetTreeBox ( Gui gui ) #

Constructor. Creates an empty tree box.

Arguments

  • Gui gui - GUI, to which the new tree box will belong.

void setCurrentItem ( int item ) #

Places focus on a given item (multi-selection mode).

Arguments

  • int item - Item ID.

int getCurrentItem ( ) #

Returns the item currently in focus (multi-selection mode).

Return value

Item ID.

string getCurrentItemData ( ) #

Returns the text data of the currently focused item (multi-selection mode). The data can be used as a text identifier of the item (instead of using the number of the item).

Return value

Item data.

string getCurrentItemText ( ) #

Returns the text of the currently focused item (multi-selection mode).

Return value

Item text.

void setEditable ( int editable ) #

Sets a value indicating if item hierarchy can be edited.

Arguments

  • int editable - 1 to make the hierarchy editable, 0 to make it read-only.

int isEditable ( ) #

Returns a value indicating if item hierarchy can be edited. The default is 0.

Return value

1 if the hierarchy can be edited; otherwise, 0.

void setImage ( Image image ) #

Sets an image with mini-icons to be used with items. The image is a vertical strip of square icons.

Arguments

  • Image image - Image to set.

Image getImage ( ) #

Returns the image with mini-icons.

Return value

Image with mini-icons (the vertical strip of square icons).

int getItem ( int num ) #

Returns the ID of a given item by its number. The IDs are unique, and the numbers simply point at the place in the list of all items.

Arguments

  • int num - Item ID in range from 0 to the total number of items.

Return value

Item ID.

int getItemChild ( int item, int num ) #

Returns a child of a given item.

Arguments

  • int item - Item ID in range from 0 to the total number of items.
  • int num - Child number in the list of children in range from 0 to the total number.

Return value

Child item ID.

int isItemChild ( int item, int child ) #

Checks if a given item is a child of another specified item.

Arguments

  • int item - Item ID in range from 0 to the total number of items.
  • int child - Child item ID.

Return value

1 if child is actually a child of the item; otherwise, 0.

void setItemColor ( int item, vec4 color ) #

Sets a custom color for a given item.

Arguments

  • int item - Item number in range from 0 to the total number of items.
  • vec4 color - Color to set.

vec4 getItemColor ( int item ) #

Returns a color set to a given item.

Arguments

  • int item - Item ID in range from 0 to the total number of items.

Return value

Color.

void setItemData ( int item, string str ) #

Sets a custom text data for the given item. The data can be used as a text identifier of the item (instead of using the item number).

Arguments

  • int item - Item ID in range from 0 to the total number of items.
  • string str - Text data to be set.

string getItemData ( int item ) #

Returns the text data of the item with the specified ID. The data can be used as a text identifier of the item (instead of using the item number).

Arguments

  • int item - Item ID in range from 0 to the total number of items.

Return value

Item text data.

void setItemFolded ( int item, int folded ) #

Expands or collapses an hierarchy of a given item.

Arguments

  • int item - Item ID in range from 0 to the total number of items.
  • int folded - 1 to collapse the item hierarchy, 0 to expand it.

int isItemFolded ( int item ) #

Returns a value indicating if a given item is collapsed.

Arguments

  • int item - Item ID in range from 0 to the total number of items.

Return value

1 if the item is collapsed; otherwise, 0.

void setItemHidden ( int item, int hidden ) #

Sets a value indicating if a given item is hidden.

Arguments

  • int item - Item ID in range from 0 to the total number of items.
  • int hidden - 1 to hide the item, 0 to show it.

int isItemHidden ( int item ) #

Returns a value indicating if an item is hidden or not.

Arguments

  • int item - Item ID in range from 0 to the total number of items.

Return value

1 if the item is hidden; otherwise, 0.

void setItemParent ( int item, int parent ) #

Sets a parent for a given item.

Arguments

  • int item - Item ID in range from 0 to the total number of items.
  • int parent - Parent item ID. -1 removes the current parent.

int getItemParent ( int item ) #

Returns the parent of a given item.

Arguments

  • int item - Item ID in range from 0 to the total number of items.

Return value

Parent item ID.

void getItems ( ) #

Returns all items in the tree box.

Arguments

    void setItemSelectable ( int item, int selectable ) #

    Sets a value indicating if a given item can be selected.

    Arguments

    • int item - Item ID in range from 0 to the total number of items.
    • int selectable - 1 to set the item as selectable, 0 to set it as unselectable.

    int isItemSelectable ( int item ) #

    Returns a value indicating if a given item can be selected.

    Arguments

    • int item - Item ID in range from 0 to the total number of items.

    Return value

    1 if the item is selectable; otherwise, 0.

    void setItemSelected ( int item, int selected ) #

    Selects or deselects a given item.

    Arguments

    • int item - Item ID in range from 0 to the total number of items.
    • int selected - 1 to select the item, 0 to deselect it.

    int isItemSelected ( int item ) #

    Returns a value indicating if a given item is selected.

    Arguments

    • int item - Item ID in range from 0 to the total number of items.

    Return value

    1 if the item is selected; otherwise, 0.

    void setItemText ( int item, string str ) #

    Sets a text for a given item.

    Arguments

    • int item - Item ID in range from 0 to the total number of items.
    • string str - Item text.

    string getItemText ( int item ) #

    Returns the text of a given item.

    Arguments

    • int item - Item ID in range from 0 to the total number of items.

    Return value

    Item text.

    void setItemTexture ( int item, int texture ) #

    Sets an icon for a given item.

    Arguments

    • int item - Item ID in range from 0 to the total number of items.
    • int texture - Zero-based ID of the icon (i.e. number of the icon in the icon texture).

    int getItemTexture ( int item ) #

    Returns the icon of a given item.

    Arguments

    • int item - Item ID in range from 0 to the total number of items.

    Return value

    Zero-based ID of the icon (i.e. number of the icon in the icon texture).

    void setMultiSelection ( int selection ) #

    Enables or disables multiple selection of items.

    Arguments

    • int selection - 1 to enable multiple selection, 0 to disable it.

    int isMultiSelection ( ) #

    Returns a value indicating if multiple selection of items is enabled. The default is 0.

    Return value

    1 if several items can be selected at once; otherwise, 0.

    int getNumItemChildren ( int item ) #

    Returns the number of child items of a given item.

    Arguments

    • int item - Item ID in range from 0 to the total number of items.

    Return value

    Number of child items.

    int getNumItems ( ) #

    Returns the number of visible items in the tree box. Items that are currently collapsed to a parent level are not returned.

    Return value

    Number of items.

    int getNumSelectedItems ( ) #

    Returns number of selected items in the box (multi-selection mode).

    Return value

    Number of selected items.

    int getSelectedItem ( int num ) #

    Returns ID of a selected item (multi-selection mode).

    Arguments

    • int num - Number of an item in the list of selected items.

    Return value

    ID of the selected item.

    void setTexture ( string texture ) #

    Sets a texture with mini-icons to be used with items. The texture is a vertical strip of square icons.

    Arguments

    • string texture - Path to a texture file.

    string getTexture ( ) #

    Returns file name of the image with mini-icons. The texture is a vertical strip of square icons.

    Return value

    Path to the texture file.

    int addItem ( string str, int texture = -1 ) #

    Adds a new item with a given text and and an icon.

    Arguments

    • string str - Item text.
    • int texture - Zero-based ID of the icon (i.e. number of the icon in the icon texture). -1 means that an item has no icon.

    Return value

    ID of the added item.

    void addItemChild ( int item, int child ) #

    Adds a child to a given item.

    Arguments

    • int item - Item ID in range from 0 to the total number of items.
    • int child - Child item ID.

    void clear ( ) #

    Removes all items from the tree box.

    void clearSelection ( ) #

    Clears list of selected items.

    void removeItem ( int item ) #

    Removes a given item from the tree box. Children items will be kept.

    Arguments

    • int item - Item ID in range from 0 to the total number of items.

    void removeItemChild ( int item, int child ) #

    Removes a child of a given item.

    Arguments

    • int item - Item ID in range from 0 to the total number of items.
    • int child - Child item ID.

    void showItem ( int item ) #

    Scrolls a tree box so that a given item is visible.

    Arguments

    • int item - Item ID in range from 0 to the total number of items.

    void setSelectionColor ( vec4 color ) #

    Sets the color to be used to highlight the current selection for the widget.

    Arguments

    • vec4 color - Four-component vector specifying the color in the RGBA format.

    vec4 getSelectionColor ( ) #

    Returns the current color used to highlight the current selection for the widget.

    Return value

    Four-component vector specifying the color in the RGBA format.
    Last update: 2020-04-10
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