Abstract: A fault-tolerant method of bottom-up editing whereby simultaneous display of the GUI view and source code view are available, and wherein real-time bottom-up editing is provided. In accordance with a preferred embodiment of the present invention, changes to the source code are isolated, first by isolating and analyzing source code according to groupings associated with the structure of the language used for the source code and then isolating and analyzing individual lines of source code within these groupings. If there are no errors in a particular grouping of source code, the changes in the grouping are automatically applied to the GUI. If errors are found in a grouping, the grouping is further analyzed to determine which lines contain the error. Semantic and syntactic errors are thereby isolated and, where found, are ignored. However, correct lines of the source code are also identified and thereby applied to the GUI for interpretation and display.

Abstract: A method and software tool for performing an operation on a graphic object in a display of overlapping graphic objects in a data processing system are provided. The method comprises the steps of detecting the position of a pointer on the display; displaying to a user an indication of potential target objects of the operation which coincide with the pointer position; detecting a selection of one of the indicated potential target objects as the target object; and performing the operation on the selected object. In the case where the target object is not the outermost layer of the graphic objects on the display, the method may also comprise temporarily making the selected target object visible during performance of the operation on the target object by making the overlying objects transparent.

Abstract: A fault-tolerant method of bottom-up editing whereby simultaneous display of the GUI view and source code view are available, and wherein real-time bottom-up editing is provided. In accordance with a preferred embodiment of the present invention, changes to the source code are isolated, first by isolating and analyzing source code according to groupings associated with the structure of the language used for the source code and then isolating and analyzing individual lines of source code within these groupings. If there are no errors in a particular grouping of source code, the changes in the grouping are automatically applied to the GUI. If errors are found in a grouping, the grouping is further analyzed to determine which lines contain the error. Semantic and syntactic errors are thereby isolated and, where found, are ignored. However, correct lines of the source code are also identified and thereby applied to the GUI for interpretation and display.

Abstract: A fault-tolerant method of bottom-up editing whereby simultaneous display of the GUI view and source code view are available, and wherein real-time bottom-up editing is provided. In accordance with a preferred embodiment of the present invention, changes to the source code are isolated, first by isolating and analyzing source code according to groupings associated with the structure of the language used for the source code and then isolating and analyzing individual lines of source code within these groupings. If there are no errors in a particular grouping of source code, the changes in the grouping are automatically applied to the GUI. If errors are found in a grouping, the grouping is further analyzed to determine which lines contain the error. Semantic and syntactic errors are thereby isolated and, where found, are ignored. However, correct lines of the source code are also identified and thereby applied to the GUI for interpretation and display.

Abstract: A method and software tool for performing an operation on a graphic object in a display of overlapping graphic objects in a data processing system are provided. The method comprises the steps of detecting the position of a pointer on the display; displaying to a user an indication of potential target objects of the operation which coincide with the pointer position; detecting a selection of one of the indicated potential target objects as the target object; and performing the operation on the selected object. In the case where the target object is not the outermost layer of the graphic objects on the display, the method may also comprise temporarily making the selected target object visible during performance of the operation on the target object by making the overlying objects transparent. Thus embodiments of the invention avoid the need to rearrange the layers of the objects and achieve manipulation of an obscured object in a single mouse operation.

Abstract: A fault-tolerant method of bottom-up editing whereby simultaneous display of the GUI view and source code view are available, and wherein real-time bottom-up editing is provided. In accordance with a preferred embodiment of the present invention, changes to the source code are isolated, first by isolating and analyzing source code according to groupings associated with the structure of the language used for the source code and then isolating and analyzing individual lines of source code within these groupings. If there are no errors in a particular grouping of source code, the changes in the grouping are automatically applied to the GUI. If errors are found in a grouping, the grouping is further analyzed to determine which lines contain the error. Semantic and syntactic errors are thereby isolated and, where found, are ignored. However, correct lines of the source code are also identified and thereby applied to the GUI for interpretation and display.