######################################################################
#
# graphics1.py
#
# Started in Pascal by Jeff Ondich on 1/25/95
# Ported to C++, Java, and Python
# Last modified 1/19/07
#
# 1. Run it, and read all the functions to see what they do.
#
# 2. Try changing the parameters passed to sayHello(), sayHelloAgain(),
#    sayHelloAgain(), and drawSomeCircles().  How do the parameters
#    affect the picture?
#
# 3. Where is the origin (0,0) in the coordinate system of GraphWin?
#    Are larger y values higher or lower on the screen?  Are larger
#    x values further right or further left on the screen?  How can
#    you tell?
#
######################################################################

from graphics import *


def drawLine(window, x1, y1, x2, y2, color):
    firstPoint = Point(x1, y1)
    secondPoint = Point(x2, y2)
    line = Line(firstPoint, secondPoint)
    line.setOutline(color)
    line.draw(window)

def sayHello(window, startX, startY):
    lineColor = color_rgb(255, 255, 255)
    x1, y1 = startX, startY
    x2, y2 = startX + 30, startY - 80
    drawLine(window, x1, y1, x2, y2, lineColor)
    x1, y1 = x2 - 10, y2 - 20
    drawLine(window, x1, y1, x2, y2, lineColor)
    x2, y2 = x1, y1 + 100
    drawLine(window, x1, y1, x2, y2, lineColor)
    x1, y1 = x2 + 10, y2 - 30
    drawLine(window, x1, y1, x2, y2, lineColor)
    x2, y2 = x1 + 10, y1
    drawLine(window, x1, y1, x2, y2, lineColor)
    x1, y1 = x2 + 10, y2 + 30
    drawLine(window, x1, y1, x2, y2, lineColor)
    x2, y2 = x1 + 15, y1
    drawLine(window, x1, y1, x2, y2, lineColor)
    x1, y1 = x2 + 10, y2 - 30
    drawLine(window, x1, y1, x2, y2, lineColor)
    x2, y2 = x1 + 5, y1 + 20
    drawLine(window, x1, y1, x2, y2, lineColor)
    x1, y1 = x2 - 10, y2 - 40
    x2, y2 = x1, y1 - 2
    drawLine(window, x1, y1, x2, y2, lineColor)

def sayHelloAgain(window, x, y):
    textColor = color_rgb(255, 0, 0)
    text = Text(Point(x, y), 'Howdy')
    text.setTextColor(textColor);
    text.setSize(24)
    text.draw(window);

def drawSomeCircles(window, y):
    circleColor = color_rgb(0, 0, 255)
    circle = Circle(Point(150, y), 50)
    circle.setOutline(circleColor)
    circle.draw(window)

    circle = Circle(Point(350, y), 50)
    circle.setFill(circleColor)
    circle.draw(window)


# All the functions are defined.  Now start doing stuff.

# Open the window
windowWidth = 600;
windowHeight  = 500;
window = GraphWin('Graphics demo', windowWidth, windowHeight)
backgroundColor = color_rgb(0, 0, 0)
window.setBackground(backgroundColor);

# Draw some things.
drawSomeCircles(window, 100);
sayHello(window, 100, windowHeight - 100);
sayHelloAgain(window, windowWidth - 250, windowHeight - 100);

# Wait for user input.
s = raw_input('Hit Enter to quit')