The text field is then inserted in the document using the insertTextContent method. Since these function areas are available in all types of documents, they are explained first in this chapter. You can use these events to, for example, determine if a user has finished processing a control element so that you can update other elements of a dialog. Download PDF. You must avoid having a marker of public scope with the same name as one of the modules of the library. In the preceding example, if we replace the ChangeValue function then the superordinate variable A remains unaffected by this change. A table consists of individual rows. Before a text file is accessed, it must first be opened. The following properties are defined in the com.sun.star.style.PageProperties service: The following example creates a header in the "Default" page style for text documents and adds the text "Just a Test" to the header. The com.sun.star.frame.XStorable interface, which is responsible for saving documents. LibreOffice provides several ways of optimizing ResultSets and thereby controlling the speed of access. However, unlike the old Application object, StarDesktop is primarily responsible for opening new documents. The Execute method of the dialog returns the value 0, which is the same as when you click Cancel. It then converts a URL into a local file name and also displays this. In addition to the properties for characters (com.sun.star.style.CharacterProperties service, refer to #Text Documents) and lines (com.sun.star.drawing.LineStyle service, refer to #Drawings and Presentations), it provides the following properties: For the primary axes grids and sub grids can be displayed, matching to the major and minor intervals. A program-controlled position change of a TextCursor object has no impact whatsoever on the visible cursor. Some DOS-specific file and directory functions are no longer provided in LibreOffice, or their function is only limited. Below, you will find a list of the most important text fields and their associated properties. VBA: In terms of its concept, SDBC is comparable with the ADO and DAO libraries available in VBA. The example first creates a document object for the text that has just been opened. Date literals allow to specify unambiguous date variables that are independent from the current language. If the width of an individual cell is changed, the width of the column that contains the cell is not changed. The methods are accessed through the following object call: A format is specified using a format string that is structured in a similar way to the format function of LibreOffice Basic. Or this much simpler function can be used. This property receives a PropertyValue data field with the following settings: The following example shows how a printer can be changed and the paper size set with the help of the Printer property. VBA: In VBA, the formatting properties of an object are usually spread over a range of sub-objects (for example, Range.Font, Range.Borders, Range.Shading, Range.ParagraphFormat). Warning: The functionality can, however, be imitated by using the IsBoolean function: The IsBoolean function defines an internal Dummy help variable of the Boolean type and tries to assign this to the transferred value. The example is shown as in-line code, for clarity; in practice, the search would be inside a function, called with the name as a string parameter, and include error processing. To do so, the method of formatting individual table cells must be used. The five most important placeholders within a template are the zero (0), pound sign (#), period (. Once the Dlg dialog object has been initialized, you can use the Execute method to display the dialog. A dialog containing a label and a list box. ThisComponent returns the last previously active document. A dialog can contain any number of control elements. The declaration can only be made using the supplement As Date. An example for the grouped option button: Text fields allow users to type numbers and text. It is, rather, the start index which moves in LibreOffice Basic. You can also edit documents or open databases with event handling as well as access other control elements. The Dialog Editor: Creates personal dialog windows and provides scope for the adding of control elements and event handlers. Another mechanism for changing the text of headers and footers is available for text documents (LibreOffice Writer) because these consist of a single block of text. The previous example creates a bar chart. You can apply all the named properties to individual cells and to cell ranges. Note: This function creates directories and sub-directories. The best solution is to use only one approach for error handling within a program - keep error handling separate from the actual program code and do not jump back to the original code after the error occurs. Information about creating, opening, and saving drawings can be found in #Working With Documents. To compare the differences between different SQL dialects, the SDBC components from LibreOffice have their own SQL parser. return the number of pages, words, or characters of a text. For example, to process a mouse click, you may need the screen position where the mouse button was pressed. The SetAttr function permits the properties of a file to be changed. For an understanding of the API, it is, however, useful to have the assignment of methods to various interfaces handy, since many interfaces are used in the different services. The code used in the example first checks whether the database is password protected. In some situations, it is useful to replace the content of an existing window. To convert a URL into a local file name, LibreOffice provides the ConvertFromUrl function: The example converts a local file name into a URL and displays it in a message box. which provides LibreOffice with various options for opening and creating documents. Note: RectangleShape.CharWeight = com.sun.star.awt.FontWeight.BOLD In other words, formatting using templates is assigned a lower priority than direct formatting in a text. If the database is password protected, the example creates an InteractionHandler and opens the database connection using the ConnectWithCompletion method. The fourth parameter of the loadComponentFromURL function is a PropertyValue data field. The following properties are provided for pie and donut charts with the Diagram object: LibreOffice has an integrated database interface (independent of any systems) called Star Database Connectivity (SDBC). The Form Functions Toolbar is also used to switch between modes. An example of how to use the definition, and how to reference the fields within an instance, appears in the section on WithEnd With. Any modifications made to the data within the spreadsheet will also be reflected in the assigned chart. The com.sun.star.container.XNameContainer interface provides a method to remove a sheet of a given name: Each sheet contains a list of its rows and columns. Since the points of a polygon are defined as absolute values, you do not need to specify the size or the start position of a polygon. The execute method of the dialog returns the value 0, which is the same as when you click Cancel. Using the DBG_ properties is a very crude method to discover the contents of an API objects. Bar charts (com.sun.star.chart.BarDiagram) support two X-axes, two Y-axes and one Z-axis. The following sections describe the main formatting options for spreadsheet pages. The Basic interpreter's line-oriented execution produces one of the key differences between Basic and other programming languages. If you want to format the individual objects of a group, apply the formatting before you add them to the group. The control elements of dialogs and forms differ in several aspects. Each of these sub-objects contains its own formatting information. Example 1: access by means of the number (numbering begins with 0), Note: The Form Functions Toolbar is used for editing forms. You can access slides in the same way as a standard drawing is accessed through the DrawPages list of the document object. Each page in the presentation is a slide. From the standpoint of UNO, the printer is not a real property but an imitated one. The second section concentrates on how to edit spreadsheets efficiently by focusing on cell areas and the options for searching and replacing cell contents. The False value for IsFixed ensures that the date is automatically updated when the document is opened. In LibreOffice Basic on the other hand, MkDir and RmDir can be used to create or delete levels of directories. The following values are available: The following example computes the average value of the A1:C3 range and prints the result in a message box: The clearContents method simplifies the process of deleting cell contents and cell ranges in that it deletes one specific type of content from a cell range. The X-axis points in reverse direction from right to left. Information about a pressed key is provided by the event object that LibreOffice Basic supplies to the procedure for event handling. Any existing values in the specified cell range are moved below the range. ), comma (,) and dollar sign ($) characters. The question remains as to which objects or services if we are going to remain with UNO terminology support which properties, methods and interfaces and how these can be determined. The following example inserts a paragraph after the 20th character of a text: The False parameter in the call of the insertControlCharacter method ensures that the area currently highlighted by the TextCursor remains after the insert operation. All of these charts support the com.sun.star.chart.StackableDiagram service, which in turn provides the following properties: Line charts (com.sun.star.chart.LineDiagram) support two X-axes, two Y-axes and one Z-axis. Then it iterates through the entire text, sentence by sentence, and highlights each of the first words and formats this in bold. In general, only parts of the interfaces are discussed. As can be seen in the example from the previous section, LibreOffice provides a getString method for accessing table contents. To make an instance of the type actual variables that can be read and stored use the Dim as New statement: As shown in the example below, the Type definition may be written at the start of a module (before the first Sub or Function). Properties are like the properties of an object; for example, Filename and Title for a Document object. The gradient starts with red (StartColor) in the top left corner, and extends at a 45 degree angle (Angle) to green (EndColor) in the bottom right corner. Forms, on the other hand, are displayed directly in the document, just like drawing elements. The maximum length of a marker is 255 characters. StarOffice 5: The Value, String, and Formula properties supersede the old PutCell method of StarOffice 5 for setting the values of a table cell. This is because the contents of cell A2 were entered as a string and not as a number. Before you can create the dialog, you must ensure that the library it uses (in this example, the Standard library) is loaded. 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