Multiple viewers can be combined on a single viewer canvas window and the contents can be saved to file. Other viewers show, for example, a color swatch for a Color, the image for an icon, and the binary details of a double. Common data structures are automatically identified and displayed structurally. The result is animated when changes occur, as when a node is added to a linked list. Structural views of linked data structures display local variable nodes and their relation to the main structure. Structural views show the internal structure of trees, linked lists, hash tables, etc. For example, a content-based view shows ArrayList and LinkedList in an identical way, as a list of elements. The Java object viewers in jGRASP provide interface-based, structural, and other views of data structures and other objects and primitives during debugging and workbench operations. The editing window provides CSD-based folding and a "context hint" feature that displays the first line of a code structure that is off-screen when the mouse is hovered over its CSD structure. jGRASP produces CSDs for Java, C, C++, Objective-C, Ada, and VHDL. Its purpose is to improve the readability of source code. The new CSD generator will attempt to correct for code with leading space (code indented with CSD generation in older versions of jGRASP) and for code with an indent size different from 3 spaces.The Control Structure Diagram (CSD) is a control flow diagram that fits into the space normally taken by indentation in source code.Exception handlers no longer have an "extra" level of indentation.There are no longer 3 leading spaces on all code. Changes to the CSD so that with the CSD removed the code is formatted with standard 3 space indentation.Project management for C, C++, Objective-C, and Ada: the ability to compile and link multiple files without creating a makefile and support for separate source and binary directories.Support for Python, including CSD generation.Unicode support with the ability to manually specify the encoding (if something other than the system default is needed) when opening or saving a file.A new Viewer Canvas for Java that allows multiple viewers to be placed in one window, and the open viewers and viewer settings to be saved to file and to persist between debugging sessions.JGRASP is developed by the Department of Computer Science and Software Engineering in the Samuel Ginn College of Engineering at Auburn University. The viewers include a data structure identifier mechanism which recognizes objects that represent traditional data structures such as stacks, queues, linked lists, binary trees, and hash tables, and then displays them in an intuitive textbook-like presentation view. JGRASP produces Control Structure Diagrams (CSDs) for Java, C, C++, Objective-C, Python, Ada, and VHDL Complexity Profile Graphs (CPGs) for Java and Ada UML class diagrams for Java and has dynamic object viewers and a viewer canvas that work in conjunction with an integrated debugger and workbench for Java. jGRASP is implemented in Java, and runs on all platforms with a Java Virtual Machine (Java version 1.5 or higher). JGRASP is a lightweight development environment created specifically to provide automatic generation of software visualizations to improve the comprehensibility of software.
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