libreoffice basic programming guide pdf

These are inserted in the text and influence its structure. In the following example, the loop is terminated during the fifth pass: The For EachNext loop variation in VBA is supported in LibreOffice Basic. 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. These in turn can be linked to LibreOffice Basic macros to considerably extend the usage range of LibreOffice Basic. The corresponding dimensions are separated from one another by commas. The following example creates a rectangle shape and fills it with red (RGB value 255, 0, 0): If you set the FillStyle property to GRADIENT, you can apply a color gradient to any fill area of a LibreOffice document. 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. Strictly speaking, there are no table columns in LibreOffice. Buy a printed copy. You should instead use Basic object ThisComponent. The sources from which the drivers take their data is irrelevant to a SDBC user. 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. The variable can contain up to 15 numbers before the decimal point. A simple ResultSet, provides the minimum scope of functions available. Either way, the names of the data fields (from the Type definition) must be qualified by the name of the instance (from the Dim statement). Each cell is defined by its X and Y-position with respect to the top left cell which has the position (0,0). The 0 (zero) used as the second parameter in the Dir function ensures that Dir only returns the names of files; directories are ignored. The expression, is interpreted as 1.43 minus 2, which corresponds to the value -0.57. To make the definition available to other modules, add the Public keyword. The following example writes the "Just a Test." Visit Andrew Pitonyak's web page to get the latest PDF and ODT files of his book 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. A single key action on a modification key, such as the Shift key or the Alt key does not create an independent event. Templates are auxiliary documents. The second section concentrates on how to edit spreadsheets efficiently by focusing on cell areas and the options for searching and replacing cell contents. These include tables, drawings, text fields and directories. The starting point for establishing the text fields present is the TextFields list of the document object. LibreOffice then changes the way in which all text portions which use this template are depicted. If you are interested in only the mouse click, your macro should ignore all calls where PopupTrigger is TRUE. Text fields can be inserted in a text document using the same methods as those used for other TextContent objects: The example inserts a text field with the current date at the start of the current text document. The first section deals with the anatomy of text documents and concentrates on how a LibreOffice Basic program can be used to take iterative steps through a LibreOffice document. The following example also shows a correct declaration, but with negative data field limits: It declares an integer data field with 6 values that can be addressed using the indexes -10 to -5. The ASCII character set is commonly used as a standard format for transferring text data between computers. The StyleFamilies are accessed by means of the document object: The example uses the StyleFamilies property of a spreadsheet document to establish a list containing all available cell styles. Note: For this purpose, LibreOffice provides several help objects, such as the TextCursor object, which extend beyond those specified in the first section. 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. If you do have such collision, Basic may produce strange runtime error messages, or your Sub may not work. This is needed to specify the paper size. 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. Again, the second parameter specifies the number of columns that you want to delete. Many of the styles that are described are also available for text documents. Note: 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. This supports the com.sun.star.document.OfficeDocument service, which in turn provides two central interfaces: LibreOffice documents are saved directly through the document object. (In the following examples, A > 10 represents any condition): As in the ForNext loop, the DoLoop also provides a terminate command. The True value of the IsDate property results in only the date and not time being displayed. Write the qualifiers in order, from outer to inner: These names may also be described as, "concatenated with the dot-operator ('.')". Unicode increases the length of a character to four bytes and combines different character sets to create a standard to depict as many of the world's languages as possible. Note: By means of a storeAsURL method option, the user can save the original XML files directly. They provide a mechanism through which all subordinate elements of an objects can be passed, step by step, without having to use direct addressing. 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. They can be displayed as 2D or 3D graphics (com.sun.star.chart.Dim3DDiagram service). Dialogs such as this one are described as modal because they do not permit any other program action until they are closed. This guide divides information about LibreOffice administration into several chapters. This code inserts the test.jpg graphic and adapts its appearance using the Adjust properties. The fill mode of a drawing object is defined using the FillStyle property. Note: Whereas previously there was an object called SearchSettings especially for defining the search options, in the new object searches are now performed using a SearchDescriptor or ReplaceDescriptor object for automatically replacing text. The #API often uses pre-defined structs, but these are UNO structs, a highly-specialized kind of struct. You can define hundreds of dimensions in LibreOffice Basic Arrays; however, the amount of available memory limits the number of dimensions you can have. LibreOffice Basic lets you define parameters as optional, that is, if the corresponding values are not included in a call, LibreOffice Basic passes an empty parameter. In LibreOffice Basic, use the keyword Const to declare a constant. As with rectangle shapes, all the formatting properties of drawing objects are also provided for polypolygons: The PolyPolygonShape service also has a property that lets you define the coordinates of a polygon: The following example shows how you can define a triangle with the PolyPolygonShape service. Note: The descriptor objects for searching and replacing in spreadsheet documents are not created directly through the document object, but rather through the Sheets list. As the name suggests, LibreOffice Basic is a programming language from the Basic family. However, these speed considerations no longer apply, reducing the need for single variables. Most charts in LibreOffice can also be displayed with 3D graphics. Note: XIndexContainer provides methods for inserting and removing elements. 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. 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. The following call, for example, determines whether the TextElement object supports the com.sun.star.text.Paragraph service. When you port a VBA application to LibreOffice Basic, you must change any duplicate variable names. Predefined queries can be assigned to a data source. This is an object-oriented programming interface which LibreOffice sub-divides into various objects which for their part ensure program-controlled access to the Office package. Calculations that use integer variables are very fast and are particularly useful for loop counters. There are, however, also special drivers which access the MAPI address book, LDAP directories or LibreOffice spreadsheets as data sources. Information about how to create, open, save and print documents is described in #Working with Documents, because it can be used not only for text documents, but also for other types of documents. You can also use plus (+) or minus (-) signs as prefixes for decimal numbers (again with or without spaces). 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. This chapter presents the central interfaces and services of text documents. Note: The numerical CSng and CDbl conversion functions also accept decimal numbers. In draft mode, the position of control elements can be changed and their properties can be edited using a properties window. Note: You can use these properties to trigger an event within an event handler. Both interfaces provide you with an object, through which the properties for searching and replacing can be defined. Example 1: access by means of the number (numbering begins with 0), Note: The Assign Action dialog lists all the available Events. The following example shows how these can be used in conjunction with a TextCursor. To retrieve the next entry, the Dir function should be requested without parameters. This is because the contents of cell A2 were entered as a string and not as a number. It accesses the array of models using the GetGroupByName method (rather than the GetByName method to determine simple models). A drawing object for a spreadsheet document, for example, can therefore only exist in conjunction with this one document. Whereas the document object in VBA is called a Workbook and its individual pages Worksheets, they are called SpreadsheetDocument and Sheet in LibreOffice Basic. If used in conjunction with integer and long integer values, the operation is done at the bit level. This is positioned between the first and second word of the text. You can assign a date to a date variable through the assignment of a simple string: This assignment can function properly because LibreOffice Basic automatically converts the date value defined as a string into a date variable. A text field can contain one or more lines and can be edited or blocked for user entries. com.sun.star.awt.UnoControlTimeField, A numeric field makes it possible to enter, display and edit formatted numeric values. The object variable created must then be initialized so that it can be used. If you start the macro from the IDE, ThisComponent will still find and return your document. SetModuleB is triggered from one toolbar button and ShowVarB is triggered from another toolbar button, then ShowVarB will display a C value of 0 since module variables are reset after each macro completion. The integrated development environment (IDE) which provides an editor for creating and testing macros. The runtime library from LibreOffice Basic provides several fundamental functions for these tasks. The syntax for label names is the same as for variable names. In this example, variable A is a string, and variable B is an integer. 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. This rule ensures that source texts can be transferred from one country to another without conversion. In its simplest form, the print call is: As in the case of the loadComponentFromURL method, the Dummy parameter is a PropertyValue data field through which LibreOffice can specify several options for printing. com.sun.star.awt.UnoControlNumericalField, A currency field makes it possible to enter, display and edit currency values. The lines can be stacked (com.sun.star.chart.StackableDiagram). To specify that a parameter is to be passed as a value, ensure that the ByVal keyword precedes the variable declaration in the function header. If you move a database table into a spreadsheet, LibreOffice creates a table area which can be updated at the click of the mouse if the original data has been modified. Even in the standard installation, LibreOffice Basic has all the components needed to create its own Basic macros, including: The components of the LibreOffice API that are discussed in this guide were selected based on their practical benefits for the LibreOffice Basic programmer. LibreOffice positions the control elements of a form at drawing object level. It is called a ReplaceDescriptor and supports the com.sun.star.util.ReplaceDescriptor service. The following example outlines the replacement process within a drawing: This code uses the first page of the document to create a ReplaceDescriptor and then applies this descriptor in a loop to all the pages in the drawing document. Slide 3 will be changed into Slide 4, etc. They are suitable for binary specifications that can only adopt one of two statuses. LibreOffice forms may contain text fields, list boxes, radio buttons, and a range of other control elements, which are inserted directly in a text or spreadsheet. 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. One of these is used to query the value of the property and the other is issued to set it (get and set methods). 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. LibreOffice Basic supports Modules and Libraries. The example defines an object named PaperSize with the com.sun.star.awt.Size type. To prevent this effect, the user can access the associated paragraph portions rather than the entire paragraph. You must use whole numbers that are preceded by &O. Boolean variables can only contain one of two values: True or False. libreoffice basic programming guide pdf By July 27, 2021 OpenOffice Basic . It returns the document object on which the macro is run. This new chart is then visible to the user. Apache OpenOffice - Official Site - The Free and Open Productivity Suite For more information, see the LibreOffice API reference. In the preceding example, if we replace the ChangeValue function then the superordinate variable A remains unaffected by this change.

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