DM@H paint app

demo.py

from guizero import App, Text, Drawing, Combo, Box, Slider, PushButton

def start(event):
    painting.start_event = event

def draw(event):
    painting.line(
        painting.start_event.x, painting.start_event.y,
        event.x, event.y,
        color=color_picker.value,
        width=width_picker.value
    )

    painting.start_event = event

def clear():
    painting.clear()

app = App(title="Paint")

intro = Text(app, "Pi Paint")
controls_box = Box(app, align="top", width="fill")
color_picker = Combo(controls_box, options=["white", "black", "red", "green", "blue"], align="left")
width_picker = Slider(controls_box, start=1, end=10, align="left")
width_picker.value = 3
clear_button = PushButton(controls_box, text="clear", command=clear, align = "right")

painting = Drawing(app, width="fill", height="fill")
painting.bg = "black"

painting.when_left_button_pressed = start
painting.when_mouse_dragged = draw

app.display()

step1.py

from guizero import App, Text

app = App(title="Paint")

intro = Text(app, "Christina's paint app - lets draw something cool!")

app.display()

step2.py

from guizero import App, Text, Drawing

app = App(title="Paint")

intro = Text(app, "Christina's paint app - lets draw something cool!")

painting = Drawing(app, width="fill", height="fill")
painting.bg = "black"

app.display()

step3.py

from guizero import App, Text, Drawing

def draw(event):
    painting.oval(
        event.x - 1, event.y - 1,
        event.x + 1, event.y + 1,
        color="white")

app = App(title="Paint")

intro = Text(app, "Christina's paint app - lets draw something cool!")

painting = Drawing(app, width="fill", height="fill")
painting.bg = "black"

painting.when_mouse_dragged = draw

app.display()

step4.py

from guizero import App, Text, Drawing

def start(event):
    painting.start_event = event

def draw(event):
    painting.line(
        painting.start_event.x, painting.start_event.y,
        event.x, event.y,
        color="white",
        width=3
    )

    painting.start_event = event

app = App(title="Paint")

intro = Text(app, "Christina's paint app - lets draw something cool!")

painting = Drawing(app, width="fill", height="fill")
painting.bg = "black"

painting.when_left_button_pressed = start
painting.when_mouse_dragged = draw

app.display()

step5.py

from guizero import App, Text, Drawing, Combo

def start(event):
    painting.start_event = event

def draw(event):
    painting.line(
        painting.start_event.x, painting.start_event.y,
        event.x, event.y,
        color=color_picker.value,
        width=3
    )

    painting.start_event = event

app = App(title="Paint")

intro = Text(app, "Christina's paint app - lets draw something cool!")
color_picker = Combo(app, options=["white", "black", "red", "green", "blue"])

painting = Drawing(app, width="fill", height="fill")
painting.bg = "black"

painting.when_left_button_pressed = start
painting.when_mouse_dragged = draw

app.display()