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See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23#ifndef __com_sun_star_form_DataAwareControlModel_idl__ 24#define __com_sun_star_form_DataAwareControlModel_idl__ 25 26#ifndef __com_sun_star_form_FormControlModel_idl__ 27#include <com/sun/star/form/FormControlModel.idl> 28#endif 29 30#ifndef __com_sun_star_form_XBoundComponent_idl__ 31#include <com/sun/star/form/XBoundComponent.idl> 32#endif 33 34#ifndef __com_sun_star_form_XLoadListener_idl__ 35#include <com/sun/star/form/XLoadListener.idl> 36#endif 37 38#ifndef __com_sun_star_form_XReset_idl__ 39#include <com/sun/star/form/XReset.idl> 40#endif 41 42#ifndef __com_sun_star_beans_XPropertySet_idl__ 43#include <com/sun/star/beans/XPropertySet.idl> 44#endif 45 46 47//============================================================================= 48 49 module com { module sun { module star { module form { 50 51//============================================================================= 52 53/** is an abstract service for specialized <type>FormControlModel</type>s 54 which are data aware and thus can be bound to a data source. 55 56 <p>The connection between a data-aware control model and a form which's data the 57 control should display is made by parentship relations. The parent of a data-aware 58 control model (see <type scope="com::sun::star::container">XChild</type>, inherited 59 via the <type>FormControlModel</type> and <type>FormComponent</type> services) has 60 always to be a <type scope="com::sun::star::form::component">DataForm</type>.</p> 61 */ 62published service DataAwareControlModel 63{ 64 service com::sun::star::form::FormControlModel; 65 66 /** makes it possible to transfer the data of the model to the connected data field. 67 <p> 68 This interface is optional, if a component doesn't support it, it has to forward 69 the changes of it's value to the field it is connected to immediately (means whenever a user 70 interaction changes it's content). 71 </p> 72 */ 73 [optional] interface com::sun::star::form::XBoundComponent; 74 75 76 /** must be implemented in order to recognize when the containing form of the model connects 77 to its data source (loads its data). After loading the form, the model may bind to its 78 related field source.<br/> 79 This interface will seldom be used directly from outside. 80 */ 81 interface com::sun::star::form::XLoadListener; 82 83 84 /** Each <type>DataAwareControlModel</type> should be resettable for setting default values. 85 86 <p>In the context of a control model which is data-aware, the semantics of <em>default value</em> 87 (see <type>XReset</type>) is as follows:<br/> 88 If (and only if) the control is valid bound to a column of it's <typee scope="com::sun::star::form::component">DataForm</type>, and the form 89 is not positioned on a new record (see <member scope="com::sun::star::sdb">RowSet::IsNew</member>), then 90 <member>XReset::reset</member> does not reset the model's value to it's default value, but uses the 91 underlying column value.<br/> 92 In all other cases, the model is reset to the default value as specified by the respective property.</p> 93 94 <p>For an example, have a look at the <type scope="com::sun::star::form::component">TextField</type>. It inherites 95 the <member scope="com::sun::star::awt">UnoControlEditModel::Text</member> property from the underlying 96 service, and additionally specifies the <member scope="com::sun::star::form::component">TextField::DefaultText</member>. 97 </p> 98 99 <p>In the context of a <type scope="com::sun::star::form::component">DataForm</type>, controls are 100 automatically reset when one of the following applies 101 <ul><li>The form is reset by invoking it's <type>XReset</type> interface.</li> 102 <li>The form moves to a new record.</li> 103 <li>The changes in the current record of the form are undone</li> 104 </ul> 105 </p> 106 */ 107 interface com::sun::star::form::XReset; 108 109 //------------------------------------------------------------------------- 110 111 /** specifies the name of the bound database field. 112 113 <p>This property makes sense in the <em>context</em> of the control model only. Normally, a control model 114 is a child of a <type scope="com::sun::star::form::component">DataForm</type>, which is bound 115 to a higher level object such as a table or query - more general, a result set.<br/> 116 This member here describes the column of this result set which the control should act for.</p> 117 118 <p>Not every control model can be bound to every database column. Usually, super services of the 119 <type>DataAwareControlModel</type> restrict the column types they can be used with.</p> 120 121 @see DataAwareControlModel::BoundField 122 */ 123 [property] string DataField; 124 125 /** determines whether or not input into this field is required, when it is actually bound to a database field. 126 127 <p>If this property is set to <FALSE/>, then the form runtime will not check the control/model for 128 <NULL/> values before submitting data to the database. Usually, if a control model is bound to 129 a database field which cannot be <NULL/>, and the model itself does not have a value, then the database 130 update is prevented, showing an error message to the user. To disable this behavior on a per-control 131 basis, use the <code>InputRequired</code> property.</p> 132 133 @since OpenOffice 3.1 134 */ 135 [optional, property] boolean InputRequired; 136 137 //------------------------------------------------------------------------- 138 139 /** references to the cursor field to which the control is bound. 140 <p>Applies only if the form the control model belongs to is loaded and the control is valid bound. 141 The referenced field supports the <type scope="com::sun::star::sdb">Column</type> service. 142 </p> 143 @see DataAwareControlModel::DataField 144 */ 145 [readonly, property] com::sun::star::beans::XPropertySet BoundField; 146 147 //------------------------------------------------------------------------- 148 149 /** references to a control model within the same document which should be used as a label. 150 <p>Any user interface action which needs to refer to the control is assumed to use this 151 property. <br/> 152 A very common design method for forms is to group a data aware control with a label control, 153 with the latter describing the content of the former. For instance, you may have a 154 <type scope="com::sun::star::form::component">TextField</type>, which is bound to the e-mail 155 column of your data source. Then you will probably add a 156 <type scope="com::sun::star::form::component">FixedText</type> which's label is "E-Mail", 157 and associate it with the TextField by setting it as <member>LabelControl</member>.<br/> 158 Now if you imagine a component offering data search in a form, this component will examine 159 the <member>LabelControl</member> property, find the <type scope="com::sun::star::form::component">FixedText</type>, 160 examine it's label, and use this label to refer to the <type scope="com::sun::star::form::component">TextField</type>. 161 </p> 162 <p>When setting the property, a number of constraints apply: 163 <ul> 164 <li>The object which is to be set has to support the following interfaces 165 <ul><li><type scope="com::sun::star::awt">XControlModel</type></li> 166 <li><type scope="com::sun::star::lang">XServiceInfo</type></li> 167 <li><type scope="com::sun::star::beans">XPropertySet</type></li> 168 <li><type scope="com::sun::star::container">XChild</type></li> 169 </ul> 170 </il> 171 <li>It has to be a part of the same document as the model who's property is to be modified.</il> 172 <li>Additionally, the support of a special service, indicating that the model is of the right type, 173 is required. Which kind of service is in the request depends on the type of the control model.<br/> 174 175 For instance, text fields (<type scope="com::sun::star::form::component">TextField</type>) can be 176 labelled by label controls only (<type scope="com::sun::star::form::component">FixedText</type>), 177 and radio buttons (<type scope="com::sun::star::form::component">RadioButton</type>) can be labelled 178 by group boxes (<type scope="com::sun::star::form::component">GroupBox</type>) only. 179 </li> 180 </ul> 181 </p> 182 */ 183 [property] com::sun::star::beans::XPropertySet LabelControl; 184 185}; 186 187//============================================================================= 188 189}; }; }; }; 190 191#endif 192