2D Graphics Modeler

Overview

Software for modeling basic 2D graphics objects. The modeler will demonstrate the capabilities of the QT graphics engine by using Qt QPainter low-level graphics rendering library to draw shapes on a QWidget rendering area. A Shape abstract base class which contains a QPainter data member via an aggregate relationship handles all rendering; Shape has pure virtual functions , move, perimeter & area. This program demononstrates usage of inheritance, composition, exception handlers, virtual functions, and overloaded operators in an object-oriented design program.

Types of Shapes:

• Line
• Polyline
• Polygon
• Rectangle
• Ellipse
• Text

Shape Properties:

• Shape Dimensions
• Pen Color
• Pen Width
• Pen Style
• Pen Cap Style
• Pen Join Style
• Brush Color
• Brush Style

Text Properties:

• String
• Color
• Alignment
• Point Size
• Font Family
• Font Style
• Font Weight

Line, Polyline, Polygon, Rectangle, Ellipse, and Text Classes override the virtual interface of base class Shape (i.e. interface inheritance). All Shape Types are implemented as separate derived classes which inherit from Shape.