Project #1: 2D drawing tool

Due: 8 Oct. 11:59pm

• Directions
  • Due: 8 Oct. 11:59pm
  • Send an e-mail with your code attached.
  • Describe, in detail, how your code can be compiled.
  • Send all the files required to compile. Otherwise, you may lose points.
  • Make sure your code is compiled correctly.
  • You can use other languages other than C, (C++, Java, etc.) but describe how to compile (or run) your code carefully.
• Objective: To implement a simple 2D drawing tool.
• Executables
  • proj1.lin64: for linux 64 bit
  • proj1.xp32.exe: for Windows XP 32 bit
  Let me know if you have any problem with the executables!
• Requirements
  • Let the user draw 2D shapes.
    • White background
    • Use double-buffering to avoid blinking
    • The user can draw a shape by dragging the mouse with the left button pressed.
    • While dragging, a bounding box with black dashed line should be shown.
    • The bounding box should be changing dynamically while dragging.
    • When the user is drawing an oval, an oval with dashed line should be shown, too.
    • When the user stops dragging by releasing the left mouse button, a shape should be drawn with current properties (shape, color, fill type, and line width).
    • New shapes should "overwrite" old ones.
  • Let the user change the properties from the pop-up menu.
    • The menu should pop up when the right button is clicked.
    • The menu should be organized as follows:
      • Shape
        • Rectangle
        • Oval
      • Color
        • Black
        • Red
        • Green
        • Blue
      • Filled
        • Filled
        • Empty
      • Line width
        • 1
        • 2
        • 3
        • 4
        • 5
      • Reset
    • "Reset" clears all the shapes drawn so far.
  • Let the user change the window size.
    • To make things easy, use a 2D orthographic projection whose x- and y-dimensions are is the same as the window size.
    • The shapes should stay the same even when the window is resized.
    • The bottom-left corner should be fixed.
• Challenges
  • How to implement menus?
  • How to set up the orthographic projetion as required?
  • How to figure out where the mouse position where the user clicks?
  • How to handle "dragging"?
  • How to render an oval?
  • How to render dashed lines? (glLineStipple)
  • How to change the line width? (glLineWidth)
  • How to render a filled polygon? (glPolygonMode)
  • How to render a bounding box while dragging?
• Notes
  • When the user selects an item from the pop-up menu, a "mouse button up" event is triggered. Handle this situation carefully.