EZwgl (4.19 Fancy ListBoxes)

## 4.19 Fancy ListBoxes

A fancyListBox extend the functionalities of a listBox. It displays multi-columns of display-items with an optional header row. The contents of a fancyListBox can be scrolled in both directions.

There are two fancyListBoxes in EZwgl, an internal fancyListBox and a composite fancyListBox.

### Widget Info

Symbolic widget type | EZ_WIDGET_FANCY_LISTBOX
Default class name | "FancyListBox"
Default instance name | "fancyListBox"

Symbolic widget type | EZ_WIDGET_IFANCY_LISTBOX
Default class name | "IFancyListBox"
Default instance name | "iFancyListBox"

### Subwidgets Info

Subwidgets of FancyListBox are listed below.

                    ( iFancyListBox
     FancyListBox-->( horizontalScrollbar
                    ( verticalScrollbar

### Widget Interface Routines

    void EZ_GetFancyListBoxWidgetComponents(EZ_Widget *widget,
                      EZ_Widget **iflistBox,
                      EZ_Widget **hscroll, EZ_Widget **vscroll);

return the components of a FancyListBox.

`EZ_Item **EZ_GetFancyListBoxSelection(EZ_Widget *widget);`

return the current selection in a fancyListBox.

    EZ_Item *EZ_GetFancyListBoxItemUsingIdx (EZ_Widget *widget,
                                             int row, int col);

return the item at the specified location.

`void EZ_GetFancyListBoxSelectionIdx(EZ_Widget *widget, int *row, int *col);`

return the row and column index of the current selection in a fancyListBox.

`void EZ_SetFancyListBoxData (EZ_Widget *widget, EZ_Item **data, int nrow, int ncol);`

set the array of display items to be displayed in a fancyListBox.

`void EZ_FancyListBoxClear (EZ_Widget *widget);`

clear a fancyListBox.

`void EZ_GetFancyListBoxXYOffset (EZ_Widget *widget, int *xoff, int *yoff);`

return the XY display offset of a fancyListBox

`void EZ_SetFancyListBoxXYOffset (EZ_Widget *widget, int xoff, int yoff);`

set the XY display offset of a fancyListBox

`void EZ_SetFancyListBoxHeader (EZ_Widget *widget, EZ_Item **header, int nelts);`

set the header row of a fancyListBox.

    void EZ_FancyListBoxInsertRow (EZ_Widget *widget, EZ_Item **items,
                                         int nitems, int where);

insert a row of display items into a fancyListBox.

`void EZ_FancyListBoxDeleteRow (EZ_Widget *widget, int idx);`

delete the specified row in a fancyListBox.

`void EZ_FancyListBoxDeleteSomeRows(EZ_Widget *widget, int *idces, int cnt);`

delete some rows from a fancyListBox.

    void EZ_FancyListBoxReplaceItem(EZ_Widget *widget, EZ_Item *old,
                                    EZ_Item *newItem);

replace an item with a new item.

    void EZ_FancyListBoxReplaceItemUsingIdx(EZ_Widget *widget, int row,
                                            int col, EZ_Item *newItem);

replace the item at the specified location by a new item.

    void EZ_FancyListBoxSelectItemUsingIdx(EZ_Widget *widget, int Srow,
                                           int Scol, int *location);

select the specified item and display it at the specified location.

    void EZ_FancyListBoxSelectItem(EZ_Widget *widget, EZ_Item *item,
                                   int *location);

select the specified item and display it at the specified location.

`int EZ_GetFancyListBoxNumberOfRows (EZ_Widget *widget);`

return the number of rows in a fancyListBox, counting the header row.

`int EZ_GetFancyListBoxNumberOfColumns (EZ_Widget *widget);`

return the number of columns in a fancyListBox.

`EZ_Item ***EZ_GetFancyListBoxData (EZ_Widget *widget);`

return the array of display items in a fancyListBox. Don't modify them.

    EZ_Item **EZ_FancyListBoxFindRowAtXY(EZ_Widget *fl, int x,
                                          int y, int *r_ret);

return the row of items displayed at the specified location.

    EZ_Item *EZ_FancyListBoxFindItemAtXY(EZ_Widget *fl, int x, int y,
                                         int *r_ret, int *c_ret);

return the item displayed at the specified location.

    int EZ_FancyListBoxGetHighlightedRows(EZ_Widget *widget, int *ary,
                                                            int size);

return the row indices of highlighted items in a fancyListBox.

    int EZ_FancyListBoxGetHighlightedItems(EZ_Widget *widget,
                                      EZ_Item **arg,int siz);

return the highlighted items in a fancyListBox.

    void  EZ_SetFancyListBoxRowBg(EZ_Widget *widget, int mode,
                                         char *bg1, char *bg2);

set the alternating background colors.

### Screenshot

### Resources

Config_Option | ResourceName | DefaultValue
EZ_CLASS | class | `"FancyListBox"`
|  | or `"IFancyListBox"`
EZ_NAME | name | `"fancyListBox"`
|  | or `"iFancyListBox"`

EZ_X | x |
EZ_Y | y |
EZ_WIDTH | width |
EZ_HEIGHT | height |

EZ_LOCATION | location |
EZ_SIZE | size |
EZ_GEOMETRY | geometry |

EZ_WIDTH_HINT | widthHint |
EZ_HEIGHT_HINT | heightHint |
EZ_SIZE_HINT | sizeHint |

EZ_BORDER_WIDTH | borderWidth | `0`
EZ_BORDER_TYPE | borderType | `none`
EZ_FOCUS_PAD | focusPad | `0`

EZ_PADX | padx | `0`
EZ_PADY | pady | `0`
EZ_IPADX | iPadx | `0`
EZ_IPADY | iPady | `0`

EZ_CURSOR | cursor | `"XC_left_ptr"`
EZ_BUBBLE_STRING | bubbleString | `null`

EZ_CALLBACK | N/A | `null null`
EZ_MOTION_CALLBACK | N/A | `null null`
EZ_DESTROY_CALLBACK | N/A | `null null`
EZ_EVENT_HANDLER | N/A | `null null`

EZ_FOREGROUND | foreground | `"black"`
EZ_BACKGROUND | background | `"gray74`
EZ_BG_IMAGE_FILE | bgImageFile | `null`
EZ_BG_PIXMAP | N/A | `none`

EZ_BG_IMAGE_FILE_B | bgImageFileB | `null`
EZ_BG_PIXMAP_B | N/A | `none`
EZ_CLIENT_PTR_DATA | N/A | `null`
EZ_CLIENT_INT_DATA | clientIntData | `0`

EZ_DND_DRAG_CURSOR | dndDragCursor | `none`
EZ_DND_BUBBLE_STRING | dndBubbleString | `null`

EZ_SCROLLBAR_WIDTH | scrollbarWidth | `10`
EZ_SCROLLBAR_BORDER_WIDTH | scrollbarBorderWidth | `2`
EZ_HSCROLL_INCREMENT | hScrollIncrement | `1`
EZ_VSCROLL_INCREMENT | vScrollIncrement | `1`

EZ_SELECTION_BACKGROUND | selectionBackground |
EZ_SELECTION_FOREGROUND | selectionForeground |
EZ_TEXT_BACKGROUND | textBackground |

EZ_OPTIONAL_HSCROLLBAR | optionalHScrollbar | `true`
EZ_OPTIONAL_VSCROLLBAR | optionalVScrollbar | `true`

EZ_FANCY_LISTBOX_TYPE | fancyListBoxType | `0`
EZ_FANCY_LISTBOX_COLUMNS | fancyListBoxColumns | `0`
EZ_HIGHLIGHT_MODE | highlightMode | `0`
EZ_ROW_BG | rowBg | `off nil nil`

EZ_RUBBER_BAND | rubberBand | `false`

HTML Documentation Maintainance:`Arturo Espinosa <arturo@nuclecu.unam.mx>`