Dialog Control Elements in Detail
Apache OpenOffice Basic recognizes a range of control elements which can be divided into the following groups:
Entry fields | Buttons | Selection lists | Other |
---|---|---|---|
|
|
Buttons
A button performs an action when you click it.
The simplest scenario is for the button to trigger a When Initiating event when it is clicked by a user. You can also link another action to the button to close a dialog using the PushButtonType property. When you click a button that has this property set to the value of 0, the dialog remains unaffected. If you click a button that has this property set to the value of 1, the dialog is closed, and the Execute method of the dialog returns the value 1 (dialog sequence has been ended correctly). If the PushButtonType has the value of 2, the dialog is closed and the Execute method of the dialog returns the value 0 (dialog closed). In the Dialog Editor, the property values are shown symbolically, as Default (0), Okay (1), and Cancel (2).
The following are some of the properties that are available through the button model:
- Model.BackgroundColor (long)
- color of background
- Model.DefaultButton (Boolean)
- The button is used as the default value and responds to the Enter key if it has no focus
- Model.FontDescriptor (struct)
- structure that specifies the details of the font to be used (in accordance with com.sun.star.awt.FontDescriptor structure)
- Model.Label (String)
- label that is displayed on the button
- Model.Printable (Boolean)
- the control element can be printed
- Model.TextColor (Long)
- text color of the control element
- Model.HelpText (String)
- help text that is displayed when you move the mouse cursor over the control element
- Model.HelpURL (String)
- URL of the online help for the corresponding control element
- PushButtonType (short)
- action that is linked to the button (0: no action, 1: OK, 2: Cancel)
Checkboxes
Checkboxes are used to record a Yes or No value and depending on the mode, they can adopt two or three states. In addition to the Yes and No states, a check box can have an in-between state if the corresponding Yes or No status has more than one meaning or is unclear.
Checkboxes provide the following properties:
- State (Short)
- state of the checkbox (0: no, 1: yes, 2: in-between state)
- Label (String)
- label for the control element
- enableTriState (Boolean)
- in addition to the activated and deactivated states, you can also use the in-between state
The model object of a checkbox provides the following properties:
- Model.FontDescriptor (struct)
- structure with details of the font used (in accordance with com.sun.star.awt.FontDescriptor structure)
- Model.Label (String)
- label for the control element
- Model.Printable (Boolean)
- the control element can be printed
- Model.State (Short)
- state of the checkbox (0: no, 1: yes, 2: in-between state)
- Model.Tabstop (Boolean)
- the control element can be reached with the Tab key
- Model.TextColor (Long)
- text color of control element
- Model.HelpText (String)
- help text that is displayed when you rest the mouse cursor over the control element
- Model.HelpURL (String)
- URL of online help for the corresponding control element
Option Buttons
These buttons are generally used in groups and allow you to select from one of several options. When you select an option, all of the other options in the group are deactivated. This ensures that at any one time, only one option button is set.
An option button control element provides two properties:
- State (Boolean)
- activates the button
- Label (String)
- label that is displayed on the button
You can also use the following properties from the model of the option buttons:
- Model.FontDescriptor (struct)
- structure with details of the font to be used (in accordance with com.sun.star.awt.FontDescriptor)
- Model.Label (String)
- label that is displayed on the control element
- Model.Printable (Boolean)
- control element can be printed
- Model.State (Short)
- if this property is equal to 1, the option is activated, otherwise it is deactivated
- Model.TextColor (Long)
- text color of control element
- Model.HelpText (String)
- help text that is displayed when the mouse cursor rests over the control element
- Model.HelpURL (String)
- URL of online help for the corresponding control element
To combine several option buttons in a group, you must position them one after another in the activation sequence without any gaps (Model.TabIndex property, described as Order in the dialog editor). If the activation sequence is interrupted by another control element, then Apache OpenOffice automatically starts with a new control element group that can be activated regardless of the first group of control elements.
Text Fields
Text fields allow users to type numbers and text. The com.sun.star.awt.UnoControlEdit. service forms the basis for text fields.
A text field can contain one or more lines and can be edited or blocked for user entries. Text fields can also be used as special currency and numerical fields as well as screen fields for special tasks. As these control elements are based on the UnoControlEdit Uno service, their program-controlled handling is similar.
Text fields provide the following properties:
- Text (String)
- current text
- SelectedText (String)
- currently highlighted text
- Selection (Struct)
- read-only highlighting of details (structure in accordance with com.sun.star.awt.Selection, with the Min and Max properties to specify the start and end of the current highlighting)
- MaxTextLen (short)
- maximum number of characters that you can type in the field
- Editable (Boolean)
- True activates the option for entering text, False blocks the entry option (the property cannot be called up directly but only through IsEditable)
- IsEditable (Boolean)
- the content of the control element can be changed, read-only
The following properties are provided through the associated model object:
- Model.Align (short)
- orientation of text (0: left-aligned, 1: centered, 2: right-aligned)
- Model.BackgroundColor (long)
- color of the background of the control element
- Model.Border (short)
- type of border (0: no border, 1: 3D border, 2: simple border)
- Model.EchoChar (String)
- echo character for password fields
- Model.FontDescriptor (struct)
- structure with details of font used (in accordance with com.sun.star.awt.FontDescriptor structure)
- Model.HardLineBreaks (Boolean)
- automatic line breaks are permanently inserted in the control element text
- Model.HScroll (Boolean)
- the text has a horizontal scrollbar
- Model.MaxTextLen (Short)
- maximum length of text, where 0 corresponds to no length limit
- Model.MultiLine (Boolean)
- permits entry to spans several lines
- Model.Printable (Boolean)
- the control element can be printed
- Model.ReadOnly (Boolean)
- the content of the control element is read-only
- Model.Tabstop (Boolean)
- the control element can be reached with the Tab key
- Model.Text (String)
- text associate with the control element
- Model.TextColor (Long)
- text color of control element
- Model.VScroll (Boolean)
- the text has a vertical scrollbar
- Model.HelpText (String)
- help text that is displayed when the mouse cursor rests over the control element
- Model.HelpURL (String)
- URL of online help for the corresponding control element
Date Fields
A date field makes it possible to enter, display and edit date values. com.sun.star.awt.UnoControlDateField
Time Fields
A time field makes it possible to enter, display, and edit time values. com.sun.star.awt.UnoControlTimeField
Numerical Fields
A numeric field makes it possible to enter, display and edit formatted numeric values. com.sun.star.awt.UnoControlNumericalField
Currency Fields
A currency field makes it possible to enter, display and edit currency values. com.sun.star.awt.UnoControlCurrencyField
List Boxes
List boxes (com.sun.star.awt.UnoControlListBox service) support the following properties:
- ItemCount (Short)
- number of elements, read-only
- SelectedItem (String)
- text of highlighted entry, read-only
- SelectedItems (Array Of Strings)
- data field with highlighted entries, read-only
- SelectedItemPos (Short)
- number of the entry highlighted at present, read-only
- SelectedItemsPos (Array of Short)
- data field with the number of highlighted entries (for lists which support multiple selection), read-only
- MultipleMode (Boolean)
- True activates the option for multiple selection of entries, False blocks multiple selections (the property cannot be called up directly but only through IsMultipleMode)
- IsMultipleMode (Boolean)
- permits multiple selection within lists, read-only
List boxes provide the following methods:
- addItem (Item, Pos)
- enters the string specified in the Item into the list at the Pos position
- addItems (ItemArray, Pos)
- enters the entries listed in the string's ItemArray data field into the list at the Pos position
- removeItems (Pos, Count)
- removes Count entries as of the Pos position
- selectItem (Item, SelectMode)
- activates or deactivates highlighting for the element specified in the string Item depending on the SelectMode Boolean variable
- makeVisible (Pos)
- scrolls through the list field so that the entry specified with Pos is visible
The model object of the list boxes provides the following properties:
- Model.BackgroundColor (long)
- background color of control element
- Model.Border (short)
- type of border (0: no border, 1: 3D border, 2: simple border)
- Model.FontDescriptor (struct)
- structure with details of font used (in accordance with com.sun.star.awt.FontDescriptor structure)
- Model.LineCount (Short)
- number of lines in control element
- Model.MultiSelection (Boolean)
- permits multiple selection of entries
- Model.SelectedItems (Array of Strings)
- list of highlighted entries
- Model.StringItemList (Array of Strings)
- list of all entries
- Model.Printable (Boolean)
- the control element can be printed
- Model.ReadOnly (Boolean)
- the content of the control element is read-only
- Model.Tabstop (Boolean)
- the control element can be reached with the Tab key
- Model.TextColor (Long)
- text color of control element
- Model.HelpText (String)
- automatically displayed help text which is displayed if the mouse cursor is above the control element
- Model.HelpURL (String)
- URL of online help for the corresponding control element
Combo Boxes
Combo boxes (com.sun.star.awt.UnoControlComboBox service) support the following properties:
Tree Control
Tree boxes (com.sun.star.awt.tree.TreeControlModel service) support the following properties:
Content on this page is licensed under the Public Documentation License (PDL). |