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        "author": "Radek Je\u017eek, Dominika Kr\u00e1likov\u00e1, R\u00f3bert Selvek, Jakub Topi\u010d",
        "author_email": "topicjak@fit.cvut.cz",
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        "classifiers": [
            "License :: OSI Approved :: MIT License",
            "Operating System :: OS Independent",
            "Programming Language :: Python",
            "Topic :: Utilities"
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        "description": "Caddy\n--------------------\n> Semester project for OOP course\n\n\nThe goal of this project is to create a simple version of a CAD application inspired by the early versions of Autocad.\n\n## Installation\n\nTo install Caddy, simply use pip:\n\n```\n$ pip install caddy\n```\n\nand run with following command:\n```\n$ caddy\n```\n\n### Requirements\n\nThe following software and libraries are required to run Caddy:\n\n- Tkinter\n\n## Project assignment\n\nThe application allows one to draw the following shapes:\n\n- polylines (a line containing multiple segments)\n- rectangles\n- circles\n- _optional_ any other objects you might want to add\n\nNext to drawing shapes, the application provide additional actions:\n\n- save shapes into a file\n- load shapes from a file\n- remove a shape\n- move a shape \n- remove all shapes upon getting a confirmation from a user\n- list drawn shapes \n- quit the application asking to save any changes\n- _optional_ undo the last action\n- _optional_ redo the last action\n- _optional_ export as SVG file\n- _optional_ zoom in / out the canvas\n- _optional_ pan the canvas\n\nThe drawing can be done by either typing commands into the command panel or by using mouse.\n\n### Command-line interface\n\nAt the bottom of the application, there is a command panel.\nIt contains a command input area where a user can type commands corresponding to the above actions.\nAbove the input, it shows a history of executed commands with any additional command output or error messages in case there was a problem. \n\n### Mouse interface\n\nAll the actions are also to be invoked using mouse by selecting an appropriate menu item or a toolbar icon.\nSome actions need additional parameters:\n\n- points are selected by clicking in the canvas (_optional_ changing the mouse cursor to `crosshair`).\n- shapes are selected by clicking in the canvas (_optional_ changing the mouse cursor to `select`).\n- filenames are represented by appropriate file selection dialogs\n\n### Actions\n\nThe following is the grammar of the command language in BNF format with regex definition for `STRING`, `NAT` and `INT`:\n\n```\nSTRING ::= \"\\w+\"\nNAT ::= \\d+\nINT ::= [+-]\\d+ \nPOINT ::= <ABSOLUTE_POINT> | <RELATIVE_POINT>\nPOINTS ::= <POINT> | <POINTS> \nABSOLUTE_POINT ::= <NAT>,<NAT>\nRELATIVE_POINT ::= <INT>,<INT>\n\nACTION ::= <LINE> \n  | <RECT> \n  | <CIRCLE> \n  | <SAVE> \n  | <LOAD> \n  | <REMOVE> \n  | <MOVE> \n  | <CLEAR> \n  | <LS> \n  | <QUIT>\n\nLINE ::= line <POINT> <POINTS>\n\nRECT ::= rect <POINT> <POINT>\n  | rect <POINT> <NAT> <NAT>\n\nCIRCLE ::= circle <POINT> <NAT>\n  | circle <POINT> <POINT> \n\nSAVE ::= save <STRING>\n\nLOAD ::= load <STRING>\n\nREMOVE ::= remove <POINT>\n\nMOVE ::= move <POINT> <POINT>\n\nCLEAR ::= clear\n\nLS ::= ls\n  | ls <POINT>\n\nQUIT ::= quit\n```\n\n#### Datatypes\n\nThe language contains 5 data types: a stringm a natural number, an integer, a point and a relative point.\nThe difference between a point (eg. `10,20`) and a relative point (e.g. `+10,-20`) is that relative point is always calculated from the coordinates of its predecessor or from `0,0` if it does not have any preceding point.\n\n#### Line\n\nDraw a line connecting all given points.\n\n#### Rectangle\n\nDraw a rectangle.\nIt accepts two forms:\n\n- `rect <POINT> <POINT>` where the first point is top-left corner and the second is bottom-right corner.\n- `rect <POINT> <NAT> <NAT>` where point is the top-left corner and the two natural numbers indicate width and height.\n\n#### Circle\n\nDraw a circle.\nIt accepts two forms:\n\n- `circle <POINT> <NAT>` where point is the center and the natural number indicates radius.\n- `circle <POINT> <POINT>` where the first point is left-most point of the circle and the second is the right-most point.\n\n#### Save, Load\n\nSave or load shapes to or from a given filename.\nThe representation is simply a sequence of commands the shapes.\n\n#### Remove\n\nRemove all the shapes that intersects with the given point.\n\n#### Move\n\nMove all the shapes that intersects with the given point to a new point.\n\n#### Clear\n\nAsk for a conformation and if accepted, removes all the shapes.\n\n#### List\n\nList all the shapes or the shapes intersecting the given point in the form of an action that could be used to draw them.  \n\n#### Quit\n\nAsk for a confirmation and if accepted, quits the application.\n\n### Implementation Details\n\n- Most GUI frameworks define `0,0` origin in the top left corner and the `width,height` in the bottom right corner.\n- In technical drawing, however, it it usually the bottom left corner that defines origin `0,0` going to top right corner for `width,height`.\n- This application will honor the technical drawing. The conversion is done using affine transformation.\n- For simplicity make the window non-resizeable and only use the available canvas size. For the ones who want to challenge themselves, feel free to implement panning (scrolling the canvas) and different zoom levels.\n- You need Java 11. If you see any problems with running maven, make use maven uses the right Java.\n\n### Implementation Rules\n\n- The requirements marked as _optional_ will earn you extra points. They are also fun to implement.\n- Feel free to use the provided skeleton and change whatever needs to be changed.\n- You will be judged by the quality of the final application and proper use of object-oriented design.\n- Do not copy from other teams, plagiarism is illegal and all concerning teams will be punished.\n- Do not use any additional library except for testing. The point is that you, yourself try to implement some of the basic concepts.  \n- We provide a few basic icons, feel free to replace them with a better alternatives.\n- **If something is not clear, just raise an [issue](https://gitlab.fit.cvut.cz/BI-OOP/cad-java-skeleton/issues/new) in the repo so everyone can see it.**\n- If you get stack, contact one of the [teaching assistant](https://moodle.fit.cvut.cz/enrol/index.php?id=38).\n- Good luck!",
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