LibreOffice 25.8 SDK - Developer's Guide Examples

Software Development Kit 25.8

# Developer's Guide Examples

The Developer's Guide comes with a wide range of examples from all application areas which shows the use of the API in the context of the different functional areas. Furthermore the examples can be used as a first starting point to modify an existing example to their own needs. Some of the examples need a running office instance listening on a port. If this is necessary you will get further information in the makefiles. All examples marked with a are executable and be started using a run target in the makefile. The name of the binary (C++) can differ compared to the source file, please see the run target in the appropriate makefile. Some of the examples which create a component have no run target. In these cases a document is provided which instantiates and runs the component (see the makefile output). Also the Basic examples provide documents which use and shows the implemented functionality. The database and forms examples need a running database, please see the description below. But note that is not described in detail how to create a working data source (see the office help).
| First Steps |  |  | Professional UNO |  |  | Writing UNO components
| Office Development |  |  | Text Documents |  |  | Spreadsheet Documents
| Drawing and Presentation Documents |  |  | Charts |  |  | LibreOffice 25.8 Basic and Dialogs
| Database Access |  |  | Forms |  |  | Universal Content Broker (UCB)
| Configuration Management |  |  | Office Bean |
| Scripting Framework |  |  | Graphical User Interfaces |  |  |
FirstSteps examples |
Text Document Examples | Description
FirstUnoContact | Shows how to initialize UNO and get a remote office service manager from a running LibreOffice 25.8 in a different process space.
FirstLoadComponent | Demonstrates how to load a component into LibreOffice 25.8 by a Java application.
HelloTextTableShape | Performs some generic text and shape operations on a text document, a spreadsheet document and a drawing document.
Professional UNO examples1 |
Lifetime Examples | Description
MyUnoObject | Shows that it depends on the implementation of the Java VM whether finalize() will be called or not.
object_lifetime.cxx (ProfUnoLifetime) | Shows the UNO reference counting mechanism in C++.
Interprocess Connection Example | Description
ConnectionAwareClient | Implements a client which is aware of losing connection to LibreOffice 25.8.
UrlResolver | Builds a connection to LibreOffice 25.8 using the URL given on the command line. This example shows the usage of `XUnoUrlResolver`.
C++ Binding Examples | Description
office_connect.cxx | Builds a connection to LibreOffice 25.8 using C++.
string_samples.cxx | Demonstrates usage of RTL string classes `OString`, `OUString` and `OUStringBuffer`.
SimpleBootstrap Java Example | Description
SimpleBootstrap_java.java | Shows the transparent use of office UNO components from Java. The remote office component context is obtained by using the `com.sun.star.comp.helper.Bootstrap.bootstrap()` method, which bootstraps the component context from a UNO installation.
manifest.mf | Contains the additional manifest file entries.
SimpleBootstrap C++ Example | Description
SimpleBootstrap_cpp.cxx | Shows the transparent use of office UNO components from C++. The remote office component context is obtained by using the `::cppu::bootstrap()` function, which bootstraps the component context from a UNO installation.
Deployment Features | Description
description.xml | Demonstrates how license files can be embedded, so that they are shown to the user during installation.
Writing UNO components examples |
Jobs Addon Example | Description
AsyncJob | An java example showing how a job can analyze the given arguments and how the environment can be detected, in which the job is executed.
Jobs.xcu | Contains the example job configuration.
Addons.xcu | Contains the configuration entries for the Jobs addon where different entries are configured.
ProtocolHandler Addon Java | Description
ProtocolHandlerAddon | Implements a ProtocolHandler addon component in Java.
ProtocolHandler.xcu | Contains the ProtocolHandler configuration.
Addons.xcu | Contains the configuration entries for the ProtocolHandler addon where different entries are configured.
ProtocolHandler Addon C++ | Description
addon.cxx | Implements a ProtocolHandler addon component in C++.
addon.hxx | Contains the class definition of the c++ ProtocolHandler example.
component.cxx | Implements the administrative component functions (component_writeInfo, component_getFactory, component_getImplementationEnvironment).
ProtocolHandler.xcu | Contains the ProtocolHandler configuration.
Addons.xcu | Contains the configuration entries for the ProtocolHandler addon where different entries are configured.
Java Component Example | Description
TestJavaComponent | Demonstrates how to extend the service provider with a new factory and instantiates the example components.
TestComponentA | Shows a simple demo component which implements `XTypeProvider`, `XServiceInfo` and an own interface `XSomethingA`.
TestComponentB | Shows a simple demo component which implements `XTypeProvider`, `XServiceInfo` and an own interface `XSomethingB`.
TestServiceProvider | Implements a factory (service provider) which can create the two test components.
C++ Component Example | Description
TestCppComponent.cxx | Shows how to create new instances of the demo services and calls some methods of the demo interface.
service1_impl.cxx | Implements a simple UNO service with an own interface in C++.
service2_impl.cxx | Implements another simple UNO service in C++.
Thumbs Example | Description
ImageShrink | Contains a framework for a component which scales images in a directory and stores them to another directory. This code does not really do anything, it just contains the framework.
Thumbs | This example registers a factory for the image shrink component and instantiates it.
Dialog Component Example | Description
DialogComponent.java | Implements a component accessing a dialog created with the LibreOffice 25.8 Basic IDE. The component provides methods that can be bound to dialog respectively control events .
XTestDialogHandler.idl | Interface implementing a createDialog method showing the dialog and some methods to be used as event handler for the dialog.
TestDialogHandler.idl | Service definition for the component implementing its own interface `XTestDialogHandler`.
DialogComponent.odt | Document containing Basic code to instantiate the Dialog Components and a Dialog containing controls with events bound to methods supported by the Dialog Component.
Office Development examples |
Ascii Filter Example | Description
AsciiReplaceFilter | Implements an example for an import/export filter service.
FilterOptions | Offers some helper methods to analyze and prepare the arguments of the filter method.
TypeDetection.xcu | Contains the necessary configuration items for the AsciiReplaceFilter.
FlatXmlFilter C++ Example | Description
FlatXml.cxx | Implements an import/export filter storing the data in one xml stream instead of the normal three streams in for example an .odt file. The example is implemented in C++.
FlatXmlFilter_cpp.xcu | Contains the necessary configuration items for the C++ flat xml filter.
FlatXmlFilter Java Example | Description
FlatXml | Implements an import/export filter storing the data in one xml stream instead of the normal three streams in for example an .odt file. The example is implemented in Java.
FlatXmlFilter_java.xcu | Contains the necessary configuration items for the Java flat xml filter.
FlatXml FilterDetection Example | Description
filterdetect.cxx | Implements an example filter detection for the flat xml filter. The example is implemented in C++.
filterdetect.hxx | Contains the class definition of the filter detection example.
fdcomp.cxx | Implements the administrative component functions (component_writeInfo, component_getFactory, component_getImplementationEnvironment).
FlatXmlTypeDetection.xcu | Contains the necessary configuration items for the C++ flat xml type detection.
Desktop Environment Example | Description
CustomizeView | Offers a view which allows hiding and showing of the menubar, toolbar and objectbar of the related document component.
Desk | This is the main part of a demo application based on the framework APIs. It mainly shows the mechanisms to load, store and convert documents, as well as dispatch and dispatch interception. It integrates windows from LibreOffice 25.8 via system window handle. This is the same mechanism as used by the OOoBean, but the OOoBean itself is not used here, just the JNI window handle access.
DocumentView | Deals with the application window and it's actions.
FunctionHelper | This helper comprises all LibreOffice 25.8 API calls. Thus it is possible to learn about these aspects separately from the rest of the application example.
IOnewayLink | This is an interface to receive asynchronous events from UNO oneway calls.
IShutdownListener | This is a listener interface to clean up on shutdown of LibreOffice 25.8.
Interceptor | This implements a dispatch interceptor for a specific URL.
JavaWindowPeerFake | Fakes an `XWindowPeer` for the Java native window handle to create a child window for the office frame.
NativeView | Implements native JNI methods to get the window handle of the Java window.
OfficeConnect | Builds the remote bridge to LibreOffice 25.8 and exports its UNO service manager for the Java side of the application.
OnewayExecutor | Implements `IOnewayLink` to decouple asynchronous oneway calls in the Java process.
StatusListener | Implements a listener for a `FeatureStateEvent`.
StatusView | Shows the current status for which the application is registered as an event listener.
ViewContainer | Performs a clean up on the Java side on LibreOffice 25.8 shutdown.
Office Development Examples | Description
OfficeConnect | Builds the remote bridge to LibreOffice 25.8 and exports its UNO service manager to the Java side.
ContextMenuInterceptor | This example shows a context menu interceptor that creates a new menu entry that has a sub menu. This sub menu is in inserted into the context menu on the topmost position. It provides some helper functions to the user that are reachable through the menu Help.
MenuElement | A helper class for the context menu interceptor example. It determines the menu element type.
Number_Formats | Demonstrates the use of number formats in a spreadsheet document.
Termination Test Example | Description
TerminationTest | This example uses the TerminateListener and shows the use of them in a running program.
TerminateListener | An example implementation of `XTerminateListener`. It is called when LibreOffice 25.8 terminates.
Clipboard Example | Description
Clipboard | Demonstrates the usage of the clipboard service by registering a clipboard listener, getting a list of formats from the current clipboard content and copying some data to the clipboard.
ClipboardListener | Implements a clipboard listener for the Clipboard example. In such a class, actions can be implemented which happen whenever the clipboard content changes.
ClipboardOwner | Implements a clipboard owner for the Clipboard example. This class is notified when it loses ownership of the clipboard.
TextTransferable | Implements a data object for the Clipboard example. Such classes supply clients with data in a variety of formats.
Linguistic Example | Description
LinguisticExamples | A short example that uses most of the functionality from the LibreOffice 25.8 linguistic API.
OneInstanceFactory | This class is used to provide a service factory for the linguistic services. It enforces that the actual implementations are only instantiated once.
PropChgHelper | The base class for several property change helpers which are used to keep track of the changes of the service relevant linguistic properties. It is also used by the thesaurus directly.
PropChgHelper_Hyph | The property change helper that is tracking the hyphenation relevant properties.
PropChgHelper_Spell | The property change helper that is tracking the spell checking relevant properties.
SampleHyphenator | A simple implementation for a `Hyphenator` service.
SampleSpellChecker | A simple implementation for a `SpellChecker` service.
SampleThesaurus | A simple implementation for a `Thesaurus` service.
XHyphenatedWord_impl | An object implementing the `XHyphenatedWord` interface. An instance of this type may be returned by the hyphenator.
XMeaning_impl | An object implementing the `XMeaning` interface. An instance of this type may be returned by the thesaurus.
XPossibleHyphens_impl | An object implementing the `XPossibleHyphens` interface. An instance of this type may be returned by the hyphenator.
XSpellAlternatives_impl | An object implementing the `XSpellAlternatives` interface. An instance of this type may be returned by the spell checker.
Path Settings Example | Description
PathsettingsTest | This code example creates the service `com.sun.star.util.PathSettings` and retrieves all path properties from it. It shows how a developer can change the path properties using the `XPropertySet` interface.
Path Substitution Example | Description
PathSubstitutionTest | This code example creates the path substitution service `com.sun.star.util.PathSubstitution` and retrieves the pre-defined Office path variables. It shows the variable values on the screen. The reSubstiuteVariables function is used to show how the service exchanges parts of a path with a path variable supporting platform independent path usage.
Disable Commands Example | Description
DisableCommandsTest | Implements an example showing how a developer can use the configuration API to disable/enable commands at runtime.
Text Documents examples |
Example | Description
TextDocuments | Demonstrates a wide variety of API functions in text documents and text document views. use of templates using the view cursor, including visible text selections changing the paragraph style using various editing facilities like text insertion using various cursor interfaces creating text contents, like tables, sections and frames, well as text fields and columns using stylesheets applying numbering styles using references, indexes, footnotes and autotext loading, storing and printing a text document Adjust the strings at the beginning of the class definition to match your installation!
Spreadsheet Documents examples |
Example | Description
ExampleAddIn | Implements a simple add-in component for spreadsheet documents. This component needs to be deployed before it can be used.
ExampleDataPilotSource | Shows usage of a wide variety of spreadsheet interfaces like `XCellRangeData`, `XCellSeries`, `XArrayFormulaRange` and `XMultipleOperations` as well as named ranges, label ranges and data pilot.
GeneralTableSample | Executes some examples working on generic tables.
SpreadsheetDocHelper | Defines a helper class for the other examples to access spreadsheet documents, sheets and cells.
SpreadsheetSample | Executes some examples working on a spreadsheet document.
ViewSample | Shows how to manipulate view settings like splitting sheeting sheets and selecting cells.
Drawing and Presentation Documents examples |
Example | Description
ChangeOrderDemo | Shows how to change the painting order of shapes.
ControlAndSelectDemo | Demonstrates the creation of a control shape and selects it in the current view.
CustomShowDemo | Creates two custom shows and selects one of these.
DrawViewDemo | Prints the view data properties and the controller properties of a drawing view and shows an example of setting such a property.
DrawingDemo | Creates several shapes on several slides. Nice pattern included!
FillAndLineStyleDemo | Demonstrates usage of area fill and line style properties.
GluePointDemo | Creates two shapes with glue points and connects them with two connectors.
GraphicExportDemo | Loads a drawing document and exports it to a GIF file. Run this program with source URL, target URL and page index on the command line, where the URLs are fully qualified URLs.
Helper | Contains a helper class for the other examples to connect to LibreOffice 25.8 and open or create a drawing document.
LayerDemo | Creates shapes in different layers to show how to protect shapes from modifications.
ObjectTransformationDemo | Shows geometric transformations on a shape using a homogeneous matrix.
Organigram | Demonstrates the creation of an organigram consisting of shapes and connectors.
PageHelper | Contains a helper class for accessing several kinds of draw pages in a presentation or drawing document.
PresentationDemo | Creates a presentation and runs it with some user interaction.
ShapeHelper | Contains a helper class for accessing and creating shapes for the other examples.
StyleDemo | Creates a shape and applies a predefined shape stylesheet.
TextDemo | Demonstrates usage of text and text styles in shapes.
Charts examples |
Example | Description
CalcHelper | Contains some helper methods for charts in spreadsheet documents, like accessing sheets by name, inserting a chart into a sheet, filling cell ranges with random numbers etc.
ChartHelper | Contains some helper methods for charts, like creating a chart as an embedded object.
ChartInCalc | Demonstrates how to create an embedded chart object with a random scatter chart within a spreadsheet.
ChartInDraw | Inserts a 3D-bar chart into a drawing document.
ChartInWriter | Inserts an embedded chart object with a random bar chart in a text document. This example does not really work, because the API for embedding objects into text documents is not implemented. To be more precise.
Helper | Shows how to connect to LibreOffice 25.8 and create text, drawing or spreadsheet document. This class is used as a helper class for the other examples.
JavaSampleChartAddIn | Gives an example of how to implement chart add-ins to create new or specialized diagram types. The resulting component has to be deployed before it can be used.
ListenAtCalcRangeInDraw | This helper class is used to build connection between an embedded chart object in a drawing document and a data range in a spreadsheet document.
SelectionChangeListener | Shows how to register a handler which is called when the selection within an embedded chart object changes.
LibreOffice 25.8 Basic and Dialogs examples |
Example | Description
FirstStepsBasic.odt | This StarBasic example shows how to create an own dialog which inserts a graphics object into a text document.
SampleDialog | This example builds a Java component which creates a simple dialog.
CreatingDialogs.odt | This document contains a simple Basic macro which loads the SampleDialog component. The macro will be executed by pressing a Push button.
ToolkitControls | In this directory you find a Basic library which implements several examples using toolkit controls. You can easy pack this Basic library as a UNO package and can install it using the package manager (see the makefile output). After the installation you will find a new library "ToolkitControls" in the Basic IDE containing 4 modules and the necessary dialogs. Select one of the following modules and press the Run button: FileDialog = simple dialog which ask for a filename (nothing else) MultiPage = a more complex dialog with several tab pages ProgressBar = a dialog which shows a progress bar ScrollBar = a dialog which shows a scroll bar
Database Access examples |
The Database examples use a SQL database named "MYDB0" with write access. Make sure that you have a data source operating on such a database in your office before you run the example.
Database Examples | Description
CodeSamples | Creates the connection to LibreOffice 25.8 and executes the code SalesMan samples for database API.
OpenQuery | Demonstrates the use of `XResultSetUpdate` and `XRowUpdate`.
RowSet | Demonstrates the usage of a row set.
RowSetEventListener | Demonstrates how to define listener for the row set example.
Sales | Creates a simple database table.
SalesMan | Creates a simple database table.
sdbcx | Demonstrates the usage of the SDBCX layer services.
Driver Skeleton Example | Description
OSubComponent.hxx | Helper class to delegate special dispose handling.
OTypeInfo.hxx | Contains the database types from the DatabaseMetaData getTypes call.
SConnection.hxx | This file contains the declaration of a class implementing the service `com.sun.star.sdbc.Connection`.
SConnection.cxx | This file contains the implementation of the class declared in SConnection.hxx.
SDatabaseMetaData.hxx | This file contains the declaration of a class implementing the interface `com.sun.star.sdbc.XDatabaseMetaData`.
SDatabaseMetaData.cxx | This file contains the implementation of the class declared in SDatabaseMetaData.hxx.
SDriver.hxx | This file contains the declaration of a class implementing the service `com.sun.star.sdbc.Driver`.
SDriver.cxx | This file contains the implementation of the class declared in SDriver.hxx.
SPreparedStatement.hxx | This file contains the declaration of a class implementing the service `com.sun.star.sdbc.PreparedStatement`.
SPreparedStatement.cxx | This file contains the implementation of the class declared in SPreparedStatement.hxx.
SResultSet.hxx | This file contains the declaration of a class implementing the service `com.sun.star.sdbc.ResultSet`.
SResultSet.cxx | This file contains the implementation of the class declared in SResultSet.hxx.
SResultSetMetaData.hxx | This file contains the declaration of a class implementing the interface `com.sun.star.sdbc.XResultSetMetaData`.
SResultSetMetaData.cxx | This file contains the implementation of the class declared in SResultSetMetaData.hxx.
SServices.cxx | This file contains a class implementing the service needed to register the driver.
SStatement.hxx | This file contains the declaration of a class implementing the service `com.sun.star.sdbc.Statement`.
SStatement.cxx | This file contains the implementation of the class declared in SStatement.hxx.
propertyids.hxx | Defines some common used strings and declare a helper class for properties.
propertyids.cxx | Implements the property helper class.
Forms examples |
Example | Description
BooleanValidator | The class `BooleanOperator` implements an validator for a form control, which can veto certain radio button or check box states.
ButtonOperator | The form created by the sample program contains various buttons which are tied to certain functionality. The class ButtonOperator, well, operates these buttons.
ComponentTreeTraversal | Helper classes for traveling through a tree of `FormComponent's`.
ControlLock | Helper class for implementing the locking of control depending on the state of the underlying `RowSet`.
ControlValidation | This is the main class for the control validation example. It creates a sample document, fills it with controls, and attaches several validators to those controls
ControlValidator | Base class implementing the common denominator for components validating form controls.
DataAwareness | This class implements the basic example for a form working on a database. Two tables will be created and a form (writer document) with a business example will fill its fields from these tables.
DateValidator | The class `DateValidator` implements an validator for a form control, which can check the content of a form date field.
DocumentBasedExample | This class collects common functionality of examples which require a document.
DocumentHelper | Helper class for encapsulating working with a document.
DocumentType | A simple enumeration class for classifying a document.
DocumentViewHelper | Helper class for encapsulating working with a view for a document.
FLTools | Various small tools for the form layer sample program.
FormLayer | Helper class for accessing and manipulating the form layer of a document.
GridFieldValidator | `GridFieldValidator` is responsible for validating the input in a specific grid control column. This is not to be mixed up with the control-based validation as described in the validation module. Instead, a `GridFieldValidator` assembles and uses various other concepts.
InteractionRequest | A simple implementation of a `XInteractionRequest`. Not tied to the form layer example, but a general helper.
KeyGenerator | Helper class which is able to generate (unique) keys for a (`RowSet` ) column. An instance of this class can be tied to a specific row set column. It then monitors the state of the underlying row set, and upon inserting a new record into it (two operation modi are possible here), it automatically inserts a newly created (two modi, too) key into the column.
ListSelectionValidator | The class `ListSelectionValidator` implements an validator for a form control, which can veto certain selections in a list box control.
NumericValidator | The class `NumericValidator` implements an validator for a form control, which can veto certain values in every control which allows exchanging numerical values.
SingleControlValidation | Though form documents feature inbuilt mechanisms for visually indicating invalid control content (see `com.sun.star.form.validation` for discussions about validity), the ControlValidation example extends this. The validity state of every control in this example, as well as possible explanations for invalidity, are displayed in dedicated texts. The `SingleControlValidation` class ties together a validatable control and those status texts.
SpreadsheetDocument | A specialized `DocumentHelper` which represents a spreadsheet document, and offers some form related functionality. For instance, this class allows the creation of `CellValueBinding` instances, which can be used to couple the content of a form control with the content of a spreadsheet cell.
SpreadsheetValueBinding | This example demonstrates how to bind form controls to spreadsheet cells.
SpreadsheetView | A specialized `DocumentViewHelper` which represents a view to a spreadsheet document.
TableCellTextBinding | This class allows binding the control of a form control with a table cell in a text document. For this, it uses the mechanisms of the `com.sun.star.form.binding` module.
TextValidator | The class `TextValidator` implements an validator for a form control, which can monitor a form text field.
TimeValidator | The class `TimeValidator` implements an validator for a form control, which can monitor the content of a form time field.
UNO | A small UNO-syntax related helper class.
ValueBinding | An example how to bind the content of a form control to a table cell in a text document.
WaitForInput | A pretty small helper for the interactive examples, which notifies another instance when the user pressed key on the console.
Universal Content Broker (UCB) examples |
Example | Description
ChildrenRetriever | Shows child entries of a given folder. Try -help or -? on the command line to view optional parameters.
DataStreamComposer | Demonstrates usage of the data stream by copying the data from one UCB node to another.
DataStreamRetriever | Shows how to obtain the data stream from a document resource.
Helper | Some helper methods to access the UCB which are used by the other examples.
MyActiveDataSink | A helper class for the `DataStreamRetriever` example which implements a data sink.
PropertiesComposer | Shows how to set property values of a UCB resource.
PropertiesRetriever | Shows how to access property values of a UCB resource.
ResourceCreator | Creates a new file in an existing file system folder.
ResourceManager | Demonstrates how to copy and move UCB resources.
ResourceRemover | Demonstrates how to remove UCB resources.
Configuration Management examples |
Example | Description
ConfigExamples | This example connects to a LibreOffice 25.8, gets the configuration manager and accesses the configuration in various ways.
Office Bean example |
Example | Description
OOoBeanViewer | Shows how to use the `OOoBean` embedded in a Java AWT component. It shows how to load and store documents as well as how to control toolbar visibility.
Scripting Framework Examples |
Example | Description
SayHello | A Scripting Framework Java macro that opens a new Writer document and inserts the word Hello in it.
ScriptSelector | A Scripting Framework Java macro that opens a Java Swing dialog with a tree view of the macro hierarchy for the Office application.
Graphical User Interfaces |
Example | Description
DialogDocument | A sample showing how to display an office document in a dialog window.
MessageBox | A sample showing how to display a simple message box.
UnoDialogSample | A sample showing how to create various controls in a dialog (fixed text field, currency field, progress bar, fixed line, group box, edit field, time field, date field, pattern field, numeric field, progressbar, check box, radio button, list box, combo box, formatted field, file control, button control, roadmap control)
UnoDialogSample2 | A dialog sample showing how to use a roadmap control.
UnoMenu | A sample showing a top window with some menus.
UnoMenu2 | A dialog sample showing how to use or work with a context menu.
ImageControlSample2 | Dialog sample showing how to use an image control.