Many parts of LibreOffice Basic are identical to Microsoft Visual Basic for Applications and Microsoft Visual Basic. The following example demonstrates the use of ReplaceDescriptors for a search within a LibreOffice document. This is probably not what you want. You can navigate through the control elements in any dialog by pressing the Tab key. Once the database connection has been established, the code used in the example first uses the Connection.createObject call to create a Statement object. LibreOffice Basic recognizes but ignores this keyword, because this is already the default procedure in LibreOffice Basic. This is useful, for example, if the contents of different databases are displayed within one document, or if a 1:n database relationship is displayed within a form. This is used to define a gradient that specifies the transparency of a fill area. This section describes four services and in each instance the sample program code uses a rectangle shape element that combines several types of formatting. The expression, is interpreted as 1.43 minus 2, which corresponds to the value -0.57. Most word processing programs now finally provide the option of placing drawing objects, text frames and other objects within a text. The Assign Action dialog lists all the available Events. Whereas the document object in VBA is called a Workbook and its individual pages Worksheets, they are called SpreadsheetDocument and Sheet in LibreOffice Basic. This returns an auxiliary object, which in turn provides the XEnumeration interface with the hasMoreElements and nextElement methods. It contains the following properties: The following example uses the KeyCode property to establish if the Enter key, the Tab key, or one of the other control keys has been pressed. For more information about the LibreOffice API and the Software Development Kit, visit https://api.libreoffice.org. Elements of the API are available through both the View and the Model. If the bitmap is already available in LibreOffice, you just need to specify its name in the FillBitMapName property and its display style (simple, tiled, or elongated) in the FillBitmapMode property (default values in accordance with com.sun.star.drawing.BitmapMode). The second parameter specifies the text that is to be saved as a line of the text file. Basic can handle both methods like a property Name. These in turn can be linked to LibreOffice Basic macros to considerably extend the usage range of LibreOffice Basic. Since XML is based on standard text files, the resultant files are usually very large. In this instance, access is provided directly through the HeaderText property of the page style rather than the HeaderFooterContent object. The following example shows how four lines of a mathematical expression can be linked: Note: Slide 3 will be changed into Slide 4, etc. Note the last line in the example: Once the text is changed, the TextContent object must be assigned to the header again so that the change is effective. It converts a string into a number; however it always expects a period to be used as the decimal point symbol. LibreOffice provides control codes for this purpose. To avoid this problem, the DateSerial function should be used to assign a fixed value to a date variable: The function parameter must be in the sequence: year, month, day. VBA: The rules for constructing markers are different in LibreOffice Basic than in VBA. Functions and procedures can receive one or more parameters. ), comma (,) and dollar sign ($) characters. The top left cell is usually called A1 and the bottom right row is usually called Xn, where X stands for the letters of the top column and n for the numbers of the last row. Internally, LibreOffice Basic saves the associated Unicode value for every character. Note: 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. The fill mode of a drawing object is defined using the FillStyle property. The double array in the definition allows you to create complex shapes by merging several polygons. Correspondingly, two different access methods are defined there for charts. In addition to context-independent services, there are also context-dependent services whose objects are only useful when used in conjunction with another object. Possible formats are: The following functions form the counterpart to the DateSerial and TimeSerial functions: These functions extract the date or time sections from a specified Date variable. For this reason, this algorithm is also known as a Bubble sort. The following parameters can be specified here: The following example is virtually the same as the preceding example, but the Dir function transfers the value 16 as a parameter, which returns the sub-directories of a folder rather than the file names. 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. 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. A Boolean value is saved internally as a two-byte integer value, where 0 corresponds to the False and any other value to True. It is important to check the error number so that unanticipated errors can be detected. 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. Apache OpenOffice - Official Site - The Free and Open Productivity Suite Each cell is defined by its X and Y-position with respect to the top left cell which has the position (0,0). If on the other hand, the example encounters another field, then it displays the information unknown. The com.sun.star.style.PageProperties service defines the following properties of a pages background: The page format is defined using the following properties of the com.sun.star.style.PageProperties service: The following example sets the page size of the "Default" page style to the DIN A5 landscape format (height 14.8 cm, width 21 cm): The com.sun.star.style.PageProperties service provides the following properties for adjusting page margins as well as borders and shadows: The following example sets the left and right-hand borders of the "Default" page style to 1 centimeter. The following example replaces three characters with the string is from the sixth position of the MyString string. Warning: Note: The properties are: Note: To ensure that the footer line is visible, the FooterIsOn property is set to True. The com.sun.star.view.XPrintable interface, which contains the methods for printing documents. The page properties that only apply to spreadsheet documents are defined in the com.sun.star.sheet.TablePageStyle service. VBA: The ResultSet object from SDBC is comparable with the Recordset object from DAO and ADO, since this also provides iterative access to a database. It iterates through a text document and creates a simple HTML file. VBA: The ParamArray keyword present in VBA is not supported in LibreOffice Basic. The bars can be stacked (com.sun.star.chart.StackableDiagram). This view shows not only the individual values, but also an overview of all the values. Note: Therefore, before copying the content from B to A, B has to be converted into A's internal format. A default value which can be added within the input area. LibreOffice treats cell content that is entered using the String property as text, even if the content is a number. The objects are accessed as follows in text documents: The GetByIndex method returns the form with the index number 0. The following functions are available in LibreOffice Basic to retrieve the system time and system date: Working with files is one of the basic tasks of an application. You can access individual pages either through their number or their name. And a title for the X-axis was added. To do this, you first create a standard LibreOffice Writer or LibreOffice Calc form and then link the fields to a database. The Format function formats numbers as a string. The name StarDesktop was, however, retained for the frame object of LibreOffice because it clearly indicates that this is a basic object for the entire application. There are, however, also special drivers which access the MAPI address book, LDAP directories or LibreOffice spreadsheets as data sources. The structure of a chart, and therefore the list of services and interfaces supported by it, depends on the chart type. XIndexAccess provides the methods for accessing individual objects. In this case, the syntax of the function is: In the previous examples, InStr ignores uppercase and lowercase characters. 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 symbol bars provided by LibreOffice show the common text properties such as font type, weight and size. Character objects in UNO, for example, provide the getPosition and setPosition methods through which the associated key point can be called up and changed. For example, to create Yes, No and Cancel buttons (value 3) where Cancel is the default (value 512), the parameter value is 3 + 512 = 515. These may appear at any point in the text. 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. Warning: It accesses the array of models using the GetGroupByName method (rather than the GetByName method to determine simple models). This is called direct formatting. The TextCursor objects available in LibreOffice Basic should not, however, be confused with the visible cursor. The second parameter of Dir specifies whether files or directories are to be searched for. VBA: Whereas the active document in Word is accessed through Application.ActiveDocument and in Excel through Application.ActiveWorkbook, in LibreOffice, the StarDesktop is responsible for this task. The headers and footers of a document form part of the page properties and are defined using the com.sun.star.style.PageProperties service. If a corresponding model is found, then a reference to this is saved in the Ctl variable and the search is terminated. 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. 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. You can also benefit from the advantages of object-oriented programming since an interface in LibreOffice Basic enables you to use external object libraries. The following example is an algorithm that uses two loops to sort a list by names. The waiting period is specified in milliseconds. In LibreOffice Basic on the other hand, MkDir and RmDir can be used to create or delete levels of directories. In other words, code (like the above examples) that works in a particular document type should also work for the associated template type. Their respective logos and icons are also subject to international copyright laws. You can design each page separately. If you want to cleanly structure your code to prevent generating errors when you use this construct, you should not use jump commands without monitoring them. VBA: Unlike VBA, where only the upper limit of the last dimension of a data field can be changed through Preserve, LibreOffice Basic lets you change other dimensions as well. This detail may be of interest in particular to Java- or C++ programmers, since in these languages, the interface is needed to request a method. 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. This type of assignment, however, can cause errors, date and time values are defined and displayed differently in different countries. Every control element has its own name that can be queried using the following model property: You can specify the title that appears in the title bar of a dialog with the following model property: You can query the size and position of a control element using the following properties of the model object: To ensure platform independence for the appearance of dialogs, LibreOffice uses the Map AppFont (ma) internal unit to specify the position and size within dialogs. The Internet Standard RFC 1738, upon which this is based, permits use of the 0-9, a-z, and A-Z characters. The LINE_TOP value of the VertOrient property ensures that the upper edge of the text frame is at the same height as the upper edge of the character. VBA: The CellProperties object in the LibreOffice API is comparable with the Interior object from VBA which also defines cell-specific properties. You can also edit documents or open databases with event handling as well as access other control elements. They can, however, only be used in tables that do not contain merged table cells. 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 database interface from LibreOffice is available in the LibreOffice Writer and LibreOffice Calc applications, as well as in the database forms. 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 type declaration symbol for a single variable is !. When working with documents, two services are used most frequently: The com.sun.star.frame.Desktop service is created automatically when LibreOffice is started. The easiest way to change a variable from one type to another is to use an assignment. Note: If UserInput does not contain a valid number, ValidInput is assigned the value 0 and an error message is returned. An A stands for the decimal number 10, while the letter F represents the decimal number 15. Any existing values in the specified cell range are moved below the range. The second parameter of insertCells contains a value of the com.sun.star.sheet.CellInsertMode enumeration and defines what is to be done with the values that are located in front of the insert position. Furthermore, the SearchFlags parameter must be set so that the corresponding framework is created, if it does not already exist. RectangleShape.CharFontName = "Arial". SearchDescriptor service and can be created by means of the createSearchDescriptor method of a document: Once the SearchDescriptor has been created, it receives the text to be searched for: In terms of its function, the SearchDescriptor is best compared with the search dialog from LibreOffice. All navigation methods furthermore return a Boolean parameter which specifies whether the navigation was successful or whether the action was terminated for lack of text. LibreOffice Basic provides the getPropertyState method, with which programmers can check how a certain property was formatted. Whereas the position of hard line breaks in the source code of Java, C++, or Delphi programs is irrelevant, each line in a Basic program forms a self-contained unit. If a TextCursor contains a highlighted area, then this text is available by means of the String property of the TextCursor object. The LibreOffice API (Application Programming Interface): Permits access to LibreOffice documents and allows these to be created, saved, modified, and printed. In terms of functionality, OptimalWidth is more of a method than a property. To get the most out of this book, you should be familiar with other programming languages. placeholders in both VBA and LibreOffice Basic. Each of these sub-objects contains its own formatting information. Building on this background, the following chapters will show how the API can be used to make LibreOffice do what you want it to do. With the help of this controller object and the model of the control element, it then uses the GetControl method to determine the view (CtlView variable) of the control element form. By using Option Compatible, LibreOffice Basic behaves like VBA. The following call determines the environment variables of the temporary directory of the operating system: LibreOffice objects and methods, such as paragraphs, spreadsheets, and fonts, are accessible to LibreOffice Basic through the LibreOffice application programming interface, or API. If you want to display the layout on screen, then you should create the associated LibreOffice Basic procedures so that they can be called up by the event handlers. To do this, the function expects a Format expression to be specified, which is then used as the template for formatting the numbers. The origin of the line is specified in the Location property, whereas the coordinates listed in the Size property specify the end point of the line. LibreOffice Basic returns the name of the first directory entry found. Example 1: access by means of the number (numbering begins with 0), Note: 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. LibreOffice Basic libraries contain classes, routines and variables, Python modules contain classes, functions and variables. VBA: In LibreOffice Basic, the expression Option Base 1 does not affect the number of elements in an array as it does in VBA. Download PDF. If you set this value to zero in a dialog, all the control elements are visible regardless of their Step value. The integrated development environment (IDE) which provides an editor for creating and testing macros. Furthermore, it creates a data field for two PropertyValue entries named PrinterProperties. All the above debug tools work on a running program. So Replace("This is a test", " ", "_") yields "This_is_a_test" :D. Warning: 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. LibreOffice Basic dialogs consist of a dialog window that can contain text fields, list boxes, radio buttons, and other control elements. Here are the associated properties of the com.sun.star.util.SearchDescriptor service: Once the SearchDescriptor has been prepared as requested, it can be applied to the text document. . StarOffice 5: The database is actually accessed in LibreOffice through a ResultSet object. This is described in the #Database Forms chapter. The com.sun.star.style.CharacterProperties service does not provide any interfaces, but instead offers a range of properties through which character properties can be defined and called. A simple ResultSet, provides the minimum scope of functions available. Whereas in VBA the paragraphs are accessed by their number (for example, by the Paragraph(1) call), in LibreOffice Basic, the Enumeration object described previously should be used. This object is then applied to the required text area in order to perform the action. For a detailed description please refer to the LibreOffice Basic Guide which is available separately. A For Each loop says "do this to everything in this set", rather than "do this n times". The chart wall is the background of the coordinate system where the data is plotted. These include. When working with LibreOffice documents, it is useful to deal with some of the basic issues of document administration in LibreOffice. The X-axis points in reverse direction from right to left. Some interfaces of LibreOffice can be found in many parts of the LibreOffice API. These commands stop the procedure or function and return the program to the point at which the procedure or function was called up. Those format properties that refer to individual characters are described as character properties. This includes the distance of the paragraph from the edge of the page as well as line spacing. However, unlike the old Application object, StarDesktop is primarily responsible for opening new documents. You can also have loops with an undefined number of passes. In addition to this guide, you can get more information about objects from the following sources: the supportsService method, the debug methods as well as the Developer's Guide, and the API reference. Subs and functions are always contained in modules. The Diagram object provides the following properties to access the axes title: and for the secondary axes (available since OpenOffice.org 3.0): The objects for formatting the axes title are based on the com.sun.star.chart.ChartTitle service, which is also used for chart titles. LibreOffice then creates a list of the associated cell names for each of these tables. The syntax for label names is the same as for variable names. The core of a text document consists of a sequence of paragraphs. When Var is 0, there is a match. Charts are not treated as independent documents in LibreOffice, but as objects that are embedded in an existing document. If it does, the method determines a corresponding object reference by using the getByName method and then saves the reference in a variable in Sheet. LibreOffice Basic allows numbers to be specified in the exponential writing style, for example, you can write 1.5e-10 for the number 1.5 x 10-10 (0.00000000015). This includes declaring multi-dimensional data fields and specifying explicit start and end values. You can add a shadow to most drawing objects with the com.sun.star.drawing.ShadowProperties service. en Methods can be understood as functions that relate directly to an object and through which this object is called. The predefined _blank name is usually specified here, and this ensures that LibreOffice creates a new window. This is an instance of the example function described in #Search and Replace. The functions resident in the old Application object for controlling the on-screen depiction of LibreOffice (for example, FullScreen, FunctionBarVisible, Height, Width, Top, Visible) are no longer used. 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. For a multi-dimensional array you need to specify the position (1 to n) of the index you want to know the permitted lower and upper values: In some cases, especially when dealing with the API, you need to declare an empty array. For example: The DoLoop is not linked to a fixed number of passes. In LibreOffice Basic, use the keyword Const to declare a constant. The copy is created at the next position after the original page, with a default name. All formatting options for individual characters and paragraphs are therefore automatically available. VBA: Unlike VBA, you cannot insert option buttons in a group of control elements in LibreOffice Basic. The code used in the example then creates a list containing all charts of the first spreadsheet (Charts line = Doc.Sheets(0).Charts). The, a Boolean variable which specifies whether the, com.sun.star.text.textfield.CharacterCount. 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. LibreOffice Developer's Guide: Chapter 11 - LibreOffice Basic < Documentation | DevGuide Contents 1 First Steps with LibreOffice Basic 1.1 Step By Step Tutorial 1.2 Creating a Module in a Standard Library 1.3 Writing and Debugging a Basic UNO program 1.4 Calling a Sub from the User Interface 1.5 Creating Dialogs 1.6 Adding Event Handlers This basically covers the loadComponentFromURL method, which is responsible for creating, importing, and opening documents. Conversely, spreadsheet data can be moved to a database table and a database import performed. Some drivers access file-based databases and take the data directly from them. Like bubbles, the variables gradually migrate to the right position. Note: Note: The hasByName, getByName and insertByName methods are obtained from the com.sun.star.container.XNameContainer interface as described in #Introduction to the API. The first central line creates the Doc document variable, which references the current spreadsheet document (Doc line = StarDesktop.CurrentComponent). Basic languages are designed to be easy to use. Such objects and services are also known as context-independent services. Any number of documents can be opened in this way in LibreOffice Basic and then edited using the returned document objects. Changes made to the variables are retained when the procedure or function is exited: In this example, the value A that is defined in the Test function is passed as a parameter to the ChangeValue function. Before the corresponding call can be made, the polygon must be inserted into the document. The example first creates a list containing all rows using a Table.getRows call. Styles are named lists containing formatting attributes. VBA: In terms of its concept, SDBC is comparable with the ADO and DAO libraries available in VBA.
Los Angeles Temptation Roster 2014,
What Happened To The Lottery Liar Wife,
Hib Bathroom Cabinet Spares,
Rick Perry Net Worth,
Aegon Cofunds Address,
Articles L