These include. The following two loops produce identical results: There are many ways to use loops, for example, to search lists, return values, or execute complex mathematical tasks. Microsoft based its Windows product on the American National Standards Institute (ANSI) character set, which was gradually extended to include characters that are missing from the ASCII character set. The previous example shows how a text table can be created. FileNo is the handle created by the FreeFile function. However there is one major difference: whereas the command format expects English abbreviations and decimal points or characters as thousands separators, the country-specified abbreviations must be used for the structure of a command format for the NumberFormats object. The start() method of the object is used to start the example and run the screen presentation. Furthermore, the SearchFlags parameter must be set so that the corresponding framework is created, if it does not already exist. The letter A stands for the column and the number 1 for the row. The following properties can be specified: The following example shows how the number of pages can be inserted into the footer of a document. Download PDF. It first creates the com.sun.star.frame.Desktop service and then displays the supported properties and methods in message boxes. For this reason, this algorithm is also known as a Bubble sort. If A is less than 3 (but not equal to zero), then B is assigned the value 1. LibreOffice provides control codes for this purpose. Templates for formatting characters, paragraphs, and pages, Non-text elements such as tables, graphics and drawing objects, A period within a search expression stands for any character. The functions responsible are insertByName, removeByName and replaceByName. The underscore must always be the last character in a linked line and cannot be followed by a space or a tab or a comment, otherwise the code generates an error. LibreOffice presentations are based on drawing documents. VBA: In VBA, RmDir produces an error message if a directory contains a file. In some instances, an object may contain a list of subordinate objects that cannot be addressed by either a name or an index. Some UNO services in turn support other services so that, through one object, you are provided with a whole range of services. Both the definition command, On Error, and the return command, Resume, are variants of the Goto construct. LibreOffice Basic provides the MsgBox and InputBox functions for basic user communication. Text tables are available in LibreOffice through the TextTables list of the document object. Basic languages are designed to be easy to use. This depends on the rotation of the chart. The following example uses the String property to display the first words of a sentence in a message box: The first word of each sentence can be modified in the same way using the String property: If the TextCursor contains a highlighted area, an assignment to the String property replaces this with the new text. Base Guides | LibreOffice Documentation - LibreOffice User Guides en / English documentation / Base Guides Base Guides Download PDF Buy a printed copy Guide Source Files Read in your browser Download PDF Buy a printed copy Download PDF Buy a printed copy Download PDF For detailed information check out our wiki page. The FileLen function determines the length of a file in bytes (as long integer value). The Select Case statement evaluates the expression, which is TRUE or FALSE, and then compares that value to Var. Drawing objects include shapes (rectangles, circles, and so on), lines, and text objects. LibreOffice therefore compresses the files and saves them as a ZIP file. In previous versions of the Basic Programming Guide these instructions were used to obtain the current document: This correct code has a drawback: it does not work if the macro is started from the IDE because it then refers to the IDE, not the document. In other words, code (like the above examples) that works in a particular document type should also work for the associated template type. Visit Andrew Pitonyak's web page to get the latest PDF and ODT files of his book LibreOffice is a cross-platform, open source office suite. Chapter 1. Graphic objects support two of the general formatting properties: Additional properties that are supported by graphic objects are: The following example shows how to insert a page into a graphics object. The following example creates an object that references the top left cell and inserts a text in the cell: In addition to numerical coordinates, each cell in a sheet has a name, for example, the top left cell (0,0) of a spreadsheet is called A1. This code inserts a drawing element in a page and then adds text to the top left corner of the drawing object using the TextVerticalAdjust and TextHorizontalAdjust properties. The syntax of such method calls is oriented towards classic functions. It uses the TextElement.String property in all paragraphs to access the relevant paragraphs and replaces the you, too and for strings with the U, 2 and 4 characters. The inner loop processes the paragraph portions in these paragraphs. The central methods are: All methods return a Boolean parameter which specifies whether the navigation was successful. Templates are auxiliary documents. To use bitmap projection as a fill, you must set the FillStyle property to BITMAP. It can, for example, be moved into the next line if a line break occurs. The following example shows how four lines of a mathematical expression can be linked: Note: com.sun.star.awt.UnoControlNumericalField, A currency field makes it possible to enter, display and edit currency values. For example, the methods and properties of the Z-axis, are available in 3D charts, but not in 2D charts, and in pie charts, there are no interfaces for working with axes. The user can therefore, for example, change the font type of all level one headers by means of a central modification in the document. which at first glance seems straightforward, ultimately proves to be something of a trap. In particular, if such a request is made by pressing the right mouse button on the control, the event will be fired twice: once for the popup menu request, and once for the real mouse event. A ResultSet is a type of marker that indicates a current set of data within a volume of results obtained using the SELECT command. Finally, the removeByName call removes the object behind OldStyle from ParagraphStyles. Properties are like the properties of an object; for example, Filename and Title for a Document object. Furthermore, the following methods are provided through the view object of the list box: LibreOffice forms can be directly linked to a database. A string variable can store up to 65535 characters. These include tables, drawings, text fields and directories. The function returns a number that contains the position at which the StringToFind first appears within MyString; a return value of zero indicates no match. The complete name in the named example would be: In addition to the module and service terms, UNO introduces the term 'interface'. This chapter provides an overview of the key elements and constructs of the LibreOffice Basic language, as well as the framework in which applications and libraries are oriented to LibreOffice Basic. Programmers who want to work directly with Java or C++ rather than LibreOffice Basic should consult the LibreOffice Developer's Guide instead of this guide. Unlike in the InsertCells method , a parameter for performing automatic moves is not provided in the moveRange method. VBA: If a string in LibreOffice Basic contains a non-numerical value and if this is assigned to a number, LibreOffice Basic does not produce an error message, but stops converting the string at the first invalid character. LibreOffice Basic saves strings as string variables in Unicode. If the file name contains sub-directories, then these are separated by a single forward slash, not with a backslash usually used under Windows. By using ma units, LibreOffice ensures that a dialog looks the same on different systems under different system settings. No assurances are, however, provided for whether these can also be used by the object in question. This basically covers the loadComponentFromURL method, which is responsible for creating, importing, and opening documents. A LibreOffice form may adopt one of two modes: the draft mode and the display mode. To split a string across two lines of code, add an ampersand sign (the concatenation operator) and the underscore continuation character at the end of the first line: To include a quotation mark (") in a string, enter it twice at the relevant point: LibreOffice Basic supports five basic types for processing numbers: Integer variables can store any whole number between -32768 and 32767. Warning: The removeByIndex method deletes the sixth column (index 5). Here are a few examples of Variant variables: The variables declared in the previous example can even be used for different variable types in the same program. In addition to direct formatting, you can also format text using templates. Unlike the data sources presented in the previous section, the database connection must therefore be re-established every time the program is restarted. This includes the distance of the paragraph from the edge of the page as well as line spacing. This guide provides an introduction to programming with LibreOffice Basic. Public domain variables are defined in the header section of a module by the keyword Dim. Here, the methods are called directly by means of the relevant object. You do that by using the name of the object as a qualifier. The call is made by entering the procedure name at the relevant point of the program. These objects cover not only the options, but also the current search text and, if necessary, the associated text replacement. The best way to learn Python is a simple text editor with syntax highlighting. A dialog can contain any number of control elements. The example code modifies the content in each of these paragraph portions using the String property of the string. This only applies for as long as the SQL command allows the data to be re-written to the database (depends on principle). In terms of their function, global variables are similar to public domain variables, except that their values are retained even after the associated macro has executed. The grouping of control elements in LibreOffice Basic is only used to ensure a visual division by drawing a frame around the control elements. The individual data sources are based on the com.sun.star.sdb.DataSource service and can be determined from the database context using the getByName method: The example creates a DataSource object for a data source called Customers. If the field proves to be a date/time field or an annotation, then the corresponding field type is displayed in an information box. Just as with the search function, the replacement function from LibreOffice is also available in LibreOffice Basic. 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. LibreOffice Basic returns the name of the first directory entry found. This example shows how to connect to an existing data source. The dialog then changes its appearance as follows: The strings of a Dialog can be localized, see the Developer's Guide chapter #Dialog Localization. The declaration can only be made using the supplement As Boolean. Since replacing parts of character sequences is one of the most frequently used functions, the Mid function in LibreOffice Basic has been extended so that this task is performed automatically. Numbers can be inserted and called up with the Value property, text with the String property, and formulas with the Formula property. For all axes an additional title can be displayed. The following is a list of several methods for editing highlighted areas using a TextCursor and which also support the com.sun.star.text.TextCursor service: The com.sun.star.text.TextCursor service supports all the character and paragraph properties that were presented at the start of this chapter. The following are all the properties that are associated with the LineShape service: The following example creates and formats a line with the help of the named properties. The chart wall is the background of the coordinate system where the data is plotted. Each placeholder within the template ensures that this item is formatted correspondingly in the output value. Essential parameters must be enclosed in parentheses after the function or procedure names. Finally, LibreOffice provides a mechanism for forms based on databases. LibreOffice Basic then interprets the following line as a regular instruction again. The structure for hatches has the following properties: The following example demonstrates the use of a hatch structure: This code creates a simple hatch structure (HatchStyle = SINGLE) whose lines are rotated 45 degrees (Angle). A complete list of the paragraph properties can be found in the LibreOffice API reference. Paragraphs provide their own Enumeration object for this purpose. LibreOffice Basic ensures that variable B is converted to a string during assignment to variable A. The computeFunction expects a constant as the parameter that describes the mathematical function that you want to use. The API can be used not only by LibreOffice Basic, but also by other programming languages, such as Java and C++. The loadComponentFromURL function introduced in the previous section returns a document object. With the aid of Doc, the example then creates an Enumeration object that traverses through the individual parts of the text (paragraphs and tables) and assigns the current element to TextElement object. The text field is then inserted in the document using the associated text object of the left-hand footer line. The following example therefore displays a message that informs the user whether the Spreadsheet object contains a page of the name Sheet1. Bookmarks are created and inserted using the concept already described previously: The example creates a Cursor, which marks the insert position of the bookmark and then the actual bookmark object (Bookmark). The com.sun.star.style.CharacterProperties and com.sun.star.style.ParagraphProperties services can format text in drawing objects. The ResultSet object provides Update methods for modifying values, which are structured in the same way as the get methods for retrieving values. If it does, the method determines a corresponding object reference by using the getByName method and then saves the reference in a variable in Page. Instead, you need to create an array of the points, package this array in a second array (using the Array(Coordinates()) call), and then assign this array to the polygon. Getting Started Guide | LibreOffice Documentation - LibreOffice User Guides en / English documentation / Getting Started Guide Getting Started Guide Download PDF Guide Source Files Read in your browser Download PDF Buy a printed copy Guide Source Files Read in your browser Download PDF Buy a printed copy Read in your browser Download PDF Buy a printed copy. You can also declare type-specific variables in an array. A SearchDescriptor is an object which supports the com.sun.star.util. The bookmarks can either be accessed by their number or their name. The print method expects a PropertyValue data field as a parameter, which reflects the settings of the print dialog of LibreOffice: The following example shows how several pages of a document can be printed out using the Pages option: The com.sun.star.view.XPrintable interface provides the Printer property, which selects the printer. The Assign Action dialog lists all the available Events. Then it iterates through the entire text, sentence by sentence, and highlights each of the first words and formats this in bold. . The following list describes the most important properties: Formatting information that does not refer to individual characters, but to the entire paragraph is considered to be a paragraph property. Direct formatting always takes priority over indirect formatting. Note: A single key action on a modification key, such as the Shift key or the Alt key does not create an independent event. VBA: Unlike VBA, you cannot insert option buttons in a group of control elements in LibreOffice Basic. The global name ThisComponent generally returns the same object as StarDesktop.CurrentComponent, with one significant advantage. These are available through the Rows and Columns properties of the spreadsheet object and support the com.sun.star.table.TableColumns and/or com.sun.star.table.TableRows services. The Diagram object provides the following properties to access the axes: The axis objects of a LibreOffice chart support the com.sun.star.chart.ChartAxis service. In very rare cases, before calling up some property, use the IsEmpty function to check whether it is actually available. In the first example, the sheet is accessed by its number (counting begins at 0). Note: Until Basic encounters the End With statement, it looks for partly-qualified names: names that begin with a period (unary dot-operator). The first central line creates the Doc document variable, which references the current spreadsheet document (Doc line = StarDesktop.CurrentComponent). For more in-depth information please refer to the OpenOffice.org BASIC Programming Guide on the Wiki. Slide 3 will be changed into Slide 4, etc. Rectangle shape objects (com.sun.star.drawing.RectangleShape) support the following services for formatting objects: The Service com.sun.star.drawing.EllipseShape service is responsible for circles and ellipses and supports the following services: In addition to these services, circles and ellipses also provide these properties: The CircleKind property determines if an object is a complete circle, a circular slice, or a section of a circle. The fourth variant is the option of projecting existing graphics into the fill area. The code used in this example creates a Doc object that references the current presentation document and establishes the associated presentation object. 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