In addition to the drawing functions that are provided by the Presentation property, the presentation document has a presentation object that provides access to the main properties and control mechanisms for presentations. However, the value 1.43 x 10-2 (corresponding to 0.0143) was the intended value. The watch window of the Basic IDE can display the properties of a Uno object (but not the methods, not the interfaces). Once created, the table is set to the number of rows and columns requested using an initialize call and then inserted in the text document using insertTextContent. LibreOffice Basic dialogs consist of a dialog window that can contain text fields, list boxes, radio buttons, and other control elements. The associated com.sun.star.chart.ChartArea service supports line and fill properties. The com.sun.star.presentation.PresentationDocument service, responsible for presentation documents, also provides the complete com.sun.star.drawing.DrawingDocument service. Like bubbles, the variables gradually migrate to the right position. An object which supports the com.sun.star.sdb.QueryDefinition service is concealed behind a query. A variation of the If statement is the If/Else clause: In this example, the variable B is assigned the value of 2 when A is greater than 3, otherwise B is assigned the value of 0. The execute method of the dialog returns the value 0, which is the same as when you click Cancel. If you want to find other matches for the string, the function also provides the opportunity to specify an optional start position from which LibreOffice Basic begins the search. Variables that are declared in a function or a procedure are called local variables: Local variables only remain valid as long as the function or the procedure is executing, and then are reset to zero. The properties of the text frame objects are set to the starting values required. StarOffice 5: StarDesktop.loadComponentFromURL supersedes the Documents.Add and Documents.Open methods from the old LibreOffice API. When using the CompatibilityMode ( true ) function, LibreOffice Basic behaves like VBA and the Dir function, using parameter 16, returns sub-directories and standard files. Some drivers access file-based databases and take the data directly from them. You can also use plus (+) or minus (-) signs as prefixes for decimal numbers (again with or without spaces). The ForNext loop has a fixed number of passes. This is positioned between the first and second word of the text. The ISO standard introduces new character sets (code pages) so that more languages can be correctly displayed. This chapter presents the central interfaces and services of text documents. All properties form part of the associated model objects. The following example is an algorithm that uses two loops to sort a list by names. You can use these properties to trigger an event within an event handler. Routine tasks can therefore be automated in LibreOffice Basic, links can be made to other programs for example to a database server and complex activities can be performed at the press of a button by using predefined scripts. 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 The following example creates a table with the help of the createInstance method described previously. When working with documents, two services are used most frequently: The com.sun.star.frame.Desktop service is created automatically when LibreOffice is started. Note: Whereas VBA uses the Document.Frames.Add method for this purpose, creation in LibreOffice Basic is performed using the previous procedure with the aid of a TextCursor as well as the createInstance method of the document object. The right and left-hand edges of the line extend to their points of intersect with each other (LineJoint = MITER) to form a right-angle. LibreOffice provides a whole range of predefined date and time formats. Each of these sub-objects contains its own formatting information. The entire LibreOffice API is based on these interfaces, which are described in more detail in the following chapters of this document. The actual replacement process is finally implemented using the replaceAll method of the document object, which replaces all occurrences of the search expression. This book introduces Base, the database component of LibreOffice. The corresponding constant for SearchFlags is: The following example shows how the content of an opened window can be replaced with the help of the frame parameter and SearchFlags: The example first opens the test.odt file in a new window with the frame name of MyFrame. Example declaration of a string variable: Note: You must not declare, in any module of your library, a Public variable or a Public constant, or a Sub, or a Function, named PrintDoc. This rule ensures that source texts can be transferred from one country to another without conversion. which at first glance seems straightforward, ultimately proves to be something of a trap. This is an instance of the example function described in #Search and Replace. VBA: While the type of a field in VBA is specified by a parameter of the Document.Fields.Add method, the name of the service that is responsible for the field type in question defines it in LibreOffice Basic. The bookmark is then assigned a name and is inserted in the document through insertTextContent at the cursor position. A drawing object for a spreadsheet document, for example, can therefore only exist in conjunction with this one document. The example defines a procedure called Test that contains code that can be accessed from any point in the program. The Format function formats numbers as a string. The following example activates the automatic height optimization for the first five rows in the sheet and makes the second column invisible. Text fields provide the following properties: The following properties are provided through the associated model object: A date field makes it possible to enter, display and edit date values. The found expressions differ by up to two letters from the search expression: Note: As can be seen in the example, the insertTextContent method expects not only the Content object to be inserted, but two other parameters: Note: If you start the macro from the IDE, ThisComponent will still find and return your document. Example declarations for long integer variables: Single variables can store any positive or negative floating point number between 3.402823 x 1038 and 1.401298 x 10-45. If the True parameter is passed here, then insertControlCharacter replaces the current text. Documents are opened, imported and created using the method StarDesktop.loadComponentFromURL(URL, Frame, SearchFlags, FileProperties) The first parameter of loadComponentFromURL specifies the URL of the associated file. The Select command is not restricted to simple 1:1 assignments you can also specify comparison operators or lists of expressions in a Case branch. Even the paragraph properties are available in various objects. 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. The second parameter specifies the number of columns to be inserted (in this example: one). 12 for Calc); the OpenOffice Basic Wikipedia page has some useful links, including: the OO Basic Guide and Andrew Pitonyak's OpenOffice Macro Information; there's also a book, Learn OpenOffice.org Spreadsheet Macro Programming from Pakt . Example declarations for single variables: Double variables can store any positive or negative floating point numbers between 1.79769313486232 x 10308 and 4.94065645841247 x 10-324. Python libraries help organize modules in order to prevent module name collisions. Each page in the presentation is a slide. The ResultSet object provides Update methods for modifying values, which are structured in the same way as the get methods for retrieving values. The fill mode of a drawing object is defined using the FillStyle property. To ensure that the footer line is visible, the FooterIsOn property is set to True. LibreOffice automatically ensures that the relevant data is retrieved from the database, and that any changes made are written back to the database. In other words, a variable exists from the moment that you include it in your code. Mathematical operators can be applied to all numbers types, whereas the + operator can also be used to concatenate strings. Character sets match characters in a string with a corresponding code (numbers and characters) in a table that describes how the computer is to display the string. An example of how to use the definition, and how to reference the fields within an instance, appears in the section on WithEnd With. LibreOffice provides the queryKey and addNew methods so that you can access existing number formats as well as create your own number formats. The following example shows a procedure which terminates implementation when the ErrorOccured variable has the value True. The following example therefore displays a message that informs the user whether the Spreadsheet object contains a page of the name Sheet1. When saving date values, LibreOffice Basic uses an internal format that permits comparisons and mathematical operations on date and time values. If the operators are applied to Boolean values, the operation provides the result required directly. For example, support for the ChDir, ChDrive and CurDir functions is not provided. This service provides the following properties: When you format sheets, you can define whether page elements are visible. The fourth parameter of the loadComponentFromURL function is a PropertyValue data field. Some UNO services in turn support other services so that, through one object, you are provided with a whole range of services. The type declaration symbol for a currency variable is @. If UserInput does not contain a valid number, ValidInput is assigned the value 0 and an error message is returned. This example shows how a text can be searched for the word "turnover" and the results formatted in bold type. To get the most out of this book, you should be familiar with other programming languages. You can, for example, highlight a certain word within a text using bold type or center a line. This ensures that at any one time, only one option button is set. This provides the following properties: The TextContent objects also share some methods in particular, those for creating, inserting and deleting objects. If this procedure was created in LibreOffice Basic, you can assign it to an event required using the property window of the dialog editor. TRUE is -1 and FALSE is 0. This object allows you to directly access the content of a dialog or control element. If you want to delete directory (including its files) use the RmDir function. To retrieve the next entry, the Dir function should be requested without parameters. 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. 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. The Internet Standard RFC 1738, upon which this is based, permits use of the 0-9, a-z, and A-Z characters. The WaitUntil statement provides a greater degree of compatibility with VBA parameter usage. Note: Event-Driven Macros This section describes how to assign Basic programs to program events. You should instead use Basic object ThisComponent. The following program code shows how the Step value in event handlers of the Next and Prev buttons can be increased or reduced and changes the status of the buttons. The remaining chapters describe the individual components of the LibreOffice API in more detail and can be read selectively as required: The LibreOffice Basic programming language has been developed especially for LibreOffice and is firmly integrated in the Office package. LibreOffice control elements recognize different types of events that can be triggered in different situations. 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. Since other pages of the Developer's Guide . 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. They support the following property: The number of the current page can be inserted in a document using the com.sun.star.text.textfield.PageNumber text field. As these control elements are based on the UnoControlEdit Uno service, their program-controlled handling is similar. As in text documents, drawing documents provide a function for searching and replace. When working with the indexes, note that getCount returns the number of elements. This function creates directories and sub-directories. VBA: When porting VBA applications, ensure that the maximum allowed string length in LibreOffice Basic is observed (65535 characters). XIndexContainer provides methods for inserting and removing elements. If the file name contains sub-directories, then these are separated by a single forward slash, not with a backslash usually used under Windows. The LibreOffice API has been structured so that as many of its parts as possible can be used universally for different tasks. The error sources noted for implicit type conversions can only be avoided by careful programming; for example, by not using the variant data type. Here are a few example calls for the named functions: LibreOffice Basic provides the InStr function for searching for a partial string within another string: The StringToFind parameter specifies the string to be searched for within MyString. If the field proves to be a date/time field or an annotation, then the corresponding field type is displayed in an information box. getCount returns how many objects are available. A data field contains several variables, which are addressed through an index. When administering strings, LibreOffice Basic uses the set of Unicode characters. Basic languages are designed to be easy to use. In this example, the getByName method is used to find the bookmark required by means of its name. It is important that the name and position of a cell are not confused because row counting for names begins with 1 but the counting for position begins with 0. StarOffice 5: The Value, String, and Formula properties supersede the old PutCell method of StarOffice 5 for setting the values of a table cell. The following properties are provided for 3D charts at the Diagram object: The following example creates a 3D area chart. Page properties are the formatting options that position document content on a page as well as visual elements that are repeated page after page. If a corresponding model is found, then a reference to this is saved in the Ctl variable and the search is terminated. The Dir function in LibreOffice Basic is responsible for searching through directories for files and sub-directories. Anyone who has previously worked with other Basic languages in particular with Visual Basic or Visual Basic for Applications (VBA) from Microsoft will quickly become accustomed to LibreOffice Basic. By means of a storeAsURL method option, the user can save the original XML files directly. Conversely, spreadsheet data can be moved to a database table and a database import performed. For example, the TextCursor in the following example. However, this character set does not include a range of special characters used in Europe, such as , , and , as well as other character formats, such as the Cyrillic alphabet. LibreOffice Basic lets you use whole numbered hexadecimal values, so long as they are preceded by &H. LibreOffice Basic also understands the octal system (base 8 system), which uses the numbers 0 to 7. The variable Rect determines the position and size of the chart within the first sheet in the spreadsheet document. VBA: In LibreOffice Basic, the expression Option Base 1 does not affect the number of elements in an array as it does in VBA. Use the keyword Private to define the variable: If several modules contain a Private variable with the same name, LibreOffice Basic creates a different variable for each occurrence of the name. An example of the use of XNameAccess is provided by the sheets object of a spreadsheet. AnchorType receives the AS_CHARACTER value. Note: The easiest way to change a variable from one type to another is to use an assignment. Example: Suppose that in your Basic library you have a module named PrintDoc. Note: Instead, to simplify code maintenance and troubleshooting, you should create another procedure to serve as an entry point for event handling - even if it only executes a single call to the target procedure. Forms, on the other hand, are displayed directly in the document, just like drawing elements. The lengths are specified in hundredths of a millimeter. The following responses, which are defined in the com.sun.star.beans.PropertyState enumeration, are possible: com.sun.star.beans.PropertyState.DIRECT_VALUE, the property is defined directly in the text (direct formatting), com.sun.star.beans.PropertyState.DEFAULT_VALUE, the property is defined by a template (indirect formatting), com.sun.star.beans.PropertyState.AMBIGUOUS_VALUE. However, unlike the variable declaration, the array name is followed by parentheses which contain the specifications for the number of elements. RectangleShape.CharFontName = "Arial". This guide provides an introduction to programming with LibreOffice Basic. Once initialization is complete, the text frame is finally inserted in the text document using a call from insertTextContent. A LibreOffice Basic program can contain dozens, hundreds, or even thousands of markers, which are names for variables, constants, functions . LibreOffice Basic Programming -- Resources for Learning English common, writer, calc, base, macro EssayFebruary 25, 2022, 3:17pm #1 H Everyone, Does anyone know of any books, pdf files, or courses where one can learn LibreOffice Basic and the ins and outs of macros in LibreOffice? All of these share a number of common features and support the com.sun.star.drawing.Shape service. Similar to saving, documents are printed out directly by means of the document object. The elements in getByIndex however are numbered beginning with 0. The service provides the following properties: The following example creates a rectangle and rotates it by 30 degrees using the RotateAngle property: The next example creates the same rectangle as in the previous example, but instead shears it through 30 degrees using the ShearAngle property. This example inserts a cells range that is two rows by two columns in size into the second column and row (each bear the number 1) of the first sheet (number 0) in the spreadsheet. These may be outside the flow of text and can be positioned anywhere on the page. In this case, the syntax of the function is: In the previous examples, InStr ignores uppercase and lowercase characters. The Assign Action dialog lists all the available Events. The code used in the example then creates a list containing all charts of the first spreadsheet (Charts line = Doc.Sheets(0).Charts). You can also define arrays in which the dimension of the data fields dynamically changes. A text field can contain one or more lines and can be edited or blocked for user entries. Download PDF. To determine a special control element, all drawing elements of the drawing level must be searched through. The example first creates a document object for the text that has just been opened. If you want to keep the original values, use the Preserve command: When you use Preserve, ensure that the number of dimensions and the type of variables remain the same. The method getTextTables() of the text document object is used for this purpose: Note: When working with the Enumeration object, one special scenario should, however, be noted: it not only returns paragraphs, but also tables (strictly speaking, in LibreOffice Writer, a table is a special type of paragraph). 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. The following example sets the page size of a drawing document which has just been opened to 20 x 20 centimeters with a page margin of 0.5 centimeters: Warning: And a title for the X-axis was added. VBA: Through their ValueItemList property, list box forms provide a counterpart to the VBA property, ItemData, through which you can administer additional information for individual list entries. They are listed in the source text without a comma separating the thousand figure: The numbers can be preceded by both a plus (+) or minus (-) sign (with or without a space in between): When you type a decimal number, use a period (.) LibreOffice automatically creates a new document if the document specified in the URL is a template. The cell objects are available through the getCellByName() method of the table object. Working with LibreOffice Basic Both the definition command, On Error, and the return command, Resume, are variants of the Goto construct. Buy a printed copy. Each paragraph is recorded in its own HTML element
for this purpose. The possible values are: In addition to directly modifying cell content, LibreOffice Calc also provides an interface that allows you to insert, delete, copy, or merge cells. VBA: The basic idea of search and replace in LibreOffice is comparable to that used in VBA. To do this, you first create a standard LibreOffice Writer or LibreOffice Calc form and then link the fields to a database. 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. The functions responsible are insertByName, removeByName and replaceByName. 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. It can be very difficult to locate errors of this kind in your code. Note: There are numerous options for formatting cells, such as specifying the font type and size for text. Note: The expression MB_YESNOCANCEL + MB_DEFBUTTON3 is harder to write, but easier to understand. This new chart is then visible to the user. Only at run-time can you find out which properties or methods are available for an object. 257x267px This based on the com.sun.star.sdb.DatabaseContext service and is the root object for all database operations. The getByIndex method returns a row object, which supports the com.sun.star.text.TextTableRow service. You can also use the keyword Public instead of Dim to declare a public domain variable: A public domain variable is only available so long as the associated macro is executing and then the variable is reset. Supports the com.sun.star.sdb.QueryDefinition service is concealed behind a query second parameter specifies number. Concatenate strings the type declaration symbol for a spreadsheet the moment that you can also be universally! 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libreoffice basic programming guide pdf