def chessboard_demo(slide):
# Create a chess board
board = slide.box(width=500, height=500)
board.set_style("black", elsie.TextStyle(color="black", size=50))
colors = [COLOR2, COLOR1]
tiles = {}
for i in range(8):
row = board.box(height="fill", width="100%", horizontal=True)
for j in range(8):
b = row.box(width="fill", height="100%")
b.rect(bg_color=colors[(i + j) % 2])
tiles[(j, i)] = b.overlay(z_level=1)
board.rect(color=COLOR1, stroke_width=3)
# Create the arrow
points = [
tiles[(3, 4)].mid_point(),
tiles[(3, 2)].mid_point(),
tiles[(4, 2)].mid_point(),
]
arrow = elsie.Arrow(30)
slide.box(show="1-3").line(points,
color="white",
stroke_width=15,
end_arrow=arrow)
tiles[(3, 4)].box(show="1").text("♞", "black")
tiles[(3, 3)].box(show="2").text("♞", "black")
tiles[(3, 2)].box(show="3").text("♞", "black")
tiles[(4, 2)].box(show="4").text("♞", "black")
def text_box_in_code_demo(slide):
slide.set_style("small", elsie.TextStyle(size=10))
slide.box().text("Words inside code block")
slide.box(height=80)
c = slide.box().code(
"c",
"""#include <stdio.h>
/* Hello world program */
int ~#MAIN{main}() {
printf(~small{"Hello world!\\n"});
return ~#RETURN_VALUE{0};
}""",
use_styles=True,
) # <--- use_styles=True is important to enable styling in code block
p2 = c.inline_box("#RETURN_VALUE").p("50%", "100%")
c.inline_box("#MAIN", z_level=-1, p_x=-2).rect(bg_color="#FBB",
color="black")
arrow = elsie.Arrow(10)
slide.line([p2.add(0, 40), p2], stroke_width=3, end_arrow=arrow)
c.line_box(4).box(x="100%", height="100%").text("← Inline highlight",
"small")
c.line_box(5).box(x="100%", height="100%").text("← Font style changed",
"small")
c.line_box(6).box(x="100%", height="100%").text("← Pointing to a word",
"small")
def line_highlighting(slide):
slide.box().text("Line Highlighting")
slide.box(height=30)
code = slide.box().code(
"c",
"""#include <stdio.h>
/* Hello world program */
int main() {
printf("Hello world!\\n");
return 0;
}""",
)
# 'line_box' creates box around a specified line of a text (the 1st argument)
# Lines are counter from 0
# We are using z_level to put highlights behind the text
code.line_box(4, show="1-3", z_level=-1).rect(bg_color="#D0D0FF")
code.line_box(5, show="2-3", z_level=-1).rect(bg_color="#D0D0FF")
# Another way how to put box behind text is to 'below' parameter
code.line_box(6, show="3", below=code).rect(bg_color="#D0D0FF")
# The same as previous three, but we are stroking border and
# not filling the rectangle
code.line_box(4, n_lines=4, show="4").rect(color="blue")
# Creating a "commenting label"
label = slide.box(x=100, y=400, width=200, height=130, show="5")
label.rect(bg_color="green", rx=10, ry=10)
label.text("Comment for\na line", elsie.TextStyle(color="white"))
# Here we creates the triangle heading to a line,
# method 'p' returns a position relatively to the box
label.polygon(
[
label.p("99%", "40%"),
label.p("99%", "60%"),
code.line_box(4).p(0, "50%"),
],
bg_color="green",
)
# Now we are creating an arrow head for the orange line
arrow = elsie.Arrow(10)
p1 = code.line_box(0).p("100%", "50%")
p2 = code.line_box(5).p("100%", "50%")
slide.box(show="6").line(
[p1, p1.add(40, 0), p2.add(40, 0), p2],
stroke_width=3,
color="orange",
end_arrow=arrow,
)
def text_box_demo(slide):
b = slide.box().text("~#A{Demo} for ~#B{highlighting} a part of a line")
# Now we select part of text accoring style
# You can select any style (e.g. "emph")
# But you can also use "dummy style" that starts with "#"
# Such style does not have to be declared and it serves
# only purpose of selecting part of the text
b.text_box("#A", z_level=-1, show="2").rect(bg_color=COLOR2)
b2 = b.text_box("#B", z_level=-1, show="3", padding=-3).rect(color=COLOR2)
arrow = elsie.Arrow(10)
b2.line([b2.p("50%", "160%"), b2.p("50%", "100%")],
stroke_width=3, color=COLOR2, end_arrow=arrow)
def path_demo(slide):
slide.box(x=150, y=150).text("Path demo")
root = slide.box(x=250, y="[50%]", width=100, height=50).rect(color=COLOR1, bg_color="#EEE", rx=5, ry=5).text(
"Root")
child1 = slide.box(x=650, y="[20%]", width=100, height=50).rect(color=COLOR1, bg_color="#EEE", rx=5, ry=5).text(
"Child1")
child2 = slide.box(x=650, y="[80%]", width=100, height=50).rect(color=COLOR1, bg_color="#EEE", rx=5, ry=5).text(
"Child2")
arrow = elsie.Arrow(10)
# Path root -> child1
r1 = root.p("100%", "50%")
c1 = child1.p("0%", "50%")
# See SVG <path> documentation for commands explanation
# In short: M = move to, L = line to, C/S = bezier curve, Q/T = quadratic
slide.path([("M", r1), ("C", r1.add(300, 0), c1.add(-300, 0), c1)], end_arrow=arrow, stroke_width=2, color=COLOR1)
# Path root -> child2
c2 = child2.p("0%", "50%")
slide.path([("M", r1), ("Q", c2.add(-100, 0), c2)], end_arrow=arrow, stroke_width=2, color=COLOR1,
stroke_dasharray="10")
# Path chiled1 -> child1
c1t = child1.p("50%", "0%")
c1r = child1.p("100%", "50%")
slide.path([("M", c1t), ("C", c1t.add(0, -100), c1r.add(100, 0), c1r)], end_arrow=arrow, stroke_width=2,
color=COLOR1)
# c3 = child2.p("50%", "50%")
# slide.path([("M", c3.add(0, -100)),
# ("C", c3.add(100, -100), c3.add(100, -0), c3.add(0, 100)),
# ("C", c3.add(-150, -100), c3.add(-100, -10), c3.add(0, -100))], bg_color="#909090", color=None)#
slide.path([("M", (650, 350)), ("L", (750, 350))], stroke_width=4, color="green")
slide.path([("M", (600, 450)), ("L", (700, 250)), ("L", (800, 450))], stroke_width=4, color="red")
slide.path([("M", (600, 450)), ("Q", (700, 250), (800, 450))], bg_color="blue", color=None)
def shape_demo(slide):
slide.box(x=650, y=350, width=50, height=50).ellipse(bg_color="green")
slide.box(x=720, y=350, width=150, height=50).ellipse(bg_color="purple",
color="yellow",
stroke_width=10)
slide.box(x=900, y=350, width=50, height=100).ellipse(bg_color="blue")
slide.box(x=100, y=100, width=200, height=200).rect(color="green")
slide.box(x=120, y=120, width=160, height=160).rect(bg_color="green")
slide.box(x=320, y=100, width=200, height=200).rect(color="blue",
rx=20,
ry=20)
slide.box(x=340, y=120, width=160, height=160).rect(bg_color="blue",
rx=20,
ry=20)
slide.polygon([(540, 300), (740, 300), (640, 100)], color="red")
slide.polygon([(570, 280), (710, 280), (640, 140)], bg_color="red")
slide.line([(760, 100), (940, 100), (760, 300), (960, 300)],
color="orange",
stroke_width=5)
slide.line([(100, 500), (200, 500)], color="black", stroke_width=1)
slide.line([(100, 550), (200, 550)], color="black", stroke_width=5)
slide.line([(100, 600), (200, 600)], color="black", stroke_width=10)
arrow1 = elsie.Arrow(10, stroke_width=1)
slide.line(
[(300, 500), (400, 500)],
color="black",
stroke_width=1,
start_arrow=arrow1,
end_arrow=arrow1,
)
arrow2 = elsie.Arrow(20, stroke_width=5)
slide.line(
[(300, 550), (400, 550)],
color="black",
stroke_width=5,
start_arrow=arrow2,
end_arrow=arrow2,
)
arrow3 = elsie.Arrow(30, stroke_width=10)
slide.line(
[(300, 600), (400, 600)],
color="black",
stroke_width=10,
start_arrow=arrow3,
end_arrow=arrow3,
)
arrow1 = elsie.Arrow(10)
slide.line(
[(500, 500), (600, 500)],
color="black",
stroke_width=1,
start_arrow=arrow1,
end_arrow=arrow1,
)
arrow2 = elsie.Arrow(20)
slide.line(
[(500, 550), (600, 550)],
color="black",
stroke_width=5,
start_arrow=arrow2,
end_arrow=arrow2,
)
arrow3 = elsie.Arrow(30)
slide.line(
[(500, 600), (600, 600)],
color="black",
stroke_width=10,
start_arrow=arrow3,
end_arrow=arrow3,
)
arrow1 = elsie.Arrow(10, inner=0.5)
slide.line(
[(700, 500), (800, 500)],
color="black",
stroke_width=1,
start_arrow=arrow1,
end_arrow=arrow1,
)
arrow2 = elsie.Arrow(20, inner=0.5)
slide.line(
[(700, 550), (800, 550)],
color="black",
stroke_width=5,
start_arrow=arrow2,
end_arrow=arrow2,
)
arrow3 = elsie.Arrow(30, inner=0.5)
slide.line(
[(700, 600), (800, 600)],
color="black",
stroke_width=10,
start_arrow=arrow3,
end_arrow=arrow3,
)
arrow1 = elsie.Arrow(10, inner=2.0)
slide.line(
[(900, 500), (1000, 500)],
color="black",
stroke_width=1,
start_arrow=arrow1,
end_arrow=arrow1,
)
arrow2 = elsie.Arrow(20, inner=2.0)
slide.line(
[(900, 550), (1000, 550)],
color="black",
stroke_width=5,
start_arrow=arrow2,
end_arrow=arrow2,
)
arrow3 = elsie.Arrow(30, inner=2.0)
slide.line(
[(900, 600), (1000, 600)],
color="black",
stroke_width=10,
start_arrow=arrow3,
end_arrow=arrow3,
)
# Dashes
# dash(10) space(10) ...
slide.line([(100, 350), (500, 350)],
stroke_width=10,
stroke_dasharray="10")
# dash(10) space(20) ...
slide.line([(100, 380), (500, 380)],
stroke_width=10,
stroke_dasharray="10 20")
# dash(20) space(10) dash(2) space(10) ...
slide.line([(100, 410), (500, 410)],
stroke_width=10,
stroke_dasharray="20 10 2 10")
# dashed rectangle
slide.box(x=550, y=350, width=50, height=50).rect(stroke_width=5,
stroke_dasharray="2",
color="black",
rx=5,
ry=5)
