IUP/Controls/IupList: Difference between revisions
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Created page with "__NOTOC__ __NOEDITSECTION__ Creates a list interface element, which is a list of two-state (on or off) items. An action is generated when an event changes the state of an item..." |
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{{IUP Controls}} | |||
Creates a list interface element, which is a list of two-state (on or off) items. An action is generated when an event changes the state of an item. | Creates a list interface element, which is a list of two-state (on or off) items. An action is generated when an event changes the state of an item. | ||
===Creation=== | ===Creation=== | ||
iup.list{} -> ('''elem''': ihandle) | |||
:This function returns the identifier of the created list, or nil if an error occurs. | :This function returns the identifier of the created list, or nil if an error occurs. | ||
| Line 34: | Line 36: | ||
:'''MARGINX''': | :'''MARGINX''': | ||
:'''MARGINY''': | :'''MARGINY''': | ||
:'''IMAGE''': | :'''[[IUP/Attributes/IMAGE|IMAGE]]''': | ||
:'''BORDERCOLOR''': | :'''BORDERCOLOR''': | ||
:'''FOCUSEDBORDERCOLOR''': | :'''FOCUSEDBORDERCOLOR''': | ||
:'''SELCOLOR''': | :'''SELCOLOR''': | ||
:'''UNFOCUSEDSELCOLOR''': | :'''UNFOCUSEDSELCOLOR''': | ||
:'''CONTROL''': | :'''CONTROL''': Changes the list to be a list of controls. Possible values: "YES", "NO" (Default: "NO") | ||
===Callbacks=== | ===Callbacks=== | ||
:[[IUP/Callbacks/ACTION|ACTION]]: Action generated when the state of an item in the list is changed. Also provides information on the changed item: | :[[IUP/Callbacks/ACTION|ACTION]]: Action generated when the state of an item in the list is changed. Also provides information on the changed item: | ||
elem:action('''t''': string, '''i''', '''v''': number) -> (ret: number) | |||
::'''t''': Text of the changed item. | ::'''t''': Text of the changed item. | ||
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::'''v''': Equal to 1 if the option was selected or to 0 if the option was deselected. | ::'''v''': Equal to 1 if the option was selected or to 0 if the option was deselected. | ||
:[[IUP/Callbacks/GETFOCUS_CB|GETFOCUS_CB]]: | :[[IUP/Callbacks/GETFOCUS_CB|GETFOCUS_CB]]: When DROPDOWN = "NO" and MULTIPLE = "NO" then this event will trigger on each selection. | ||
:[[IUP/Callbacks/KILLFOCUS_CB|KILLFOCUS_CB]]: | :[[IUP/Callbacks/KILLFOCUS_CB|KILLFOCUS_CB]]: When DROPDOWN = "NO" and MULTIPLE = "NO" then this event will trigger on each selection. | ||
===Notes=== | ===Notes=== | ||
:Text is always left aligned. | :Text is always left aligned. | ||
:When CONTROL = "YES", the list is comprised of controls instead of text. The first index (element[1]) should be nil when modifying the list contents and 1 when it is in use. Each inserted control should be an IupDialog containing all of the other control elements to be displayed. | |||
===See Also=== | ===See Also=== | ||
:[[IUP/Controls/IupText|IupText]] | :[[IUP/Controls/IupText|IupText]] | ||
[[Category:IUP Controls]] | |||
Latest revision as of 21:26, 11 May 2023
| Controls |
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Dialog |
Creates a list interface element, which is a list of two-state (on or off) items. An action is generated when an event changes the state of an item.
Creation
iup.list{} -> (elem: ihandle)
- This function returns the identifier of the created list, or nil if an error occurs.
Attributes
- "1": First item in the list.
- "2": Second item in the list.
- "3": Third item in the list.
- ...'
- "n": nth item in the list.
- The values can be any text. Default: nil. The first element with a nil is considered the end of the list.
- DROPDOWN: Changes the appearance of the list for the user: only the selected item is shown beside a button with the image of an arrow pointing down. Creation-only attribute. Can be "YES" or "NO". Default "NO".
- VISIBLE_ITEMS: Number of items that appear when a DROPDOWN list is activated. Default: Depends on the native system.
- MULTIPLE: Allows selecting several items simultaneously (multiple list). Default: "NO". Creation only attribute in Windows. Valid only for simple lists with no edit box.
- SIZE: Size of the list. Default: room for 5 characters in 1 item.
- FONT: Font size of the text.
- VALUE: Depends on the list type:
- Simple list: Integer number representing the selected element in the list (begins at 1). It can be zero if there is no selected item.
- Multiple list: Sequence of '+' and '-' symbols indicating the state of each item. When setting this value, the user must provide the same amount of '+' and '-' symbols as the amount of items in the list, otherwise the specified items will be deselected.
- MARGINX:
- MARGINY:
- IMAGE:
- BORDERCOLOR:
- FOCUSEDBORDERCOLOR:
- SELCOLOR:
- UNFOCUSEDSELCOLOR:
- CONTROL: Changes the list to be a list of controls. Possible values: "YES", "NO" (Default: "NO")
Callbacks
- ACTION: Action generated when the state of an item in the list is changed. Also provides information on the changed item:
elem:action(t: string, i, v: number) -> (ret: number)
- t: Text of the changed item.
- i: Number of the changed item.
- v: Equal to 1 if the option was selected or to 0 if the option was deselected.
- GETFOCUS_CB: When DROPDOWN = "NO" and MULTIPLE = "NO" then this event will trigger on each selection.
- KILLFOCUS_CB: When DROPDOWN = "NO" and MULTIPLE = "NO" then this event will trigger on each selection.
Notes
- Text is always left aligned.
- When CONTROL = "YES", the list is comprised of controls instead of text. The first index (element[1]) should be nil when modifying the list contents and 1 when it is in use. Each inserted control should be an IupDialog containing all of the other control elements to be displayed.
