#!/usr/bin/env python
# coding: utf-8

# In[1]:


import numpy as np
from lets_plot import *


# In[2]:


LetsPlot.setup_html()


# ### Setting Theme Parameters Via Sum In `set_theme()`

# In[3]:


LetsPlot.set_theme(theme_bw() 
                   + flavor_darcula() 
                   + theme(panel_background=element_rect(fill='yellow')))


# In[4]:


data = {'name': ['pen', 'brush', 'paper'],
        'slice': [1, 3, 3]}
ggplot(data) + \
    geom_pie(aes(fill='name', slice='slice'),
             stat='identity', color='pen',
             tooltips='none', labels=layer_labels().line('@name')) + \
    scale_fill_manual(['pen', 'brush', 'paper'])


# ### The Last Theme Overwrites Previous Theme Settings

# In[5]:


LetsPlot.set_theme(theme(panel_background=element_rect(fill='yellow')) 
                   + theme_bw() 
                   + flavor_darcula())


# In[6]:


data = {'name': ['pen', 'brush', 'paper'],
        'slice': [1, 3, 3]}
ggplot(data) + \
    geom_pie(aes(fill='name', slice='slice'),
             stat='identity', color='pen',
             tooltips='none', labels=layer_labels().line('@name')) + \
    scale_fill_manual(['pen', 'brush', 'paper'])


# The previous flavors are overwritten by the last flavor.

# In[7]:


LetsPlot.set_theme(theme(panel_background=element_rect(fill='yellow')) 
                   + theme_bw() 
                   + flavor_darcula() 
                   + flavor_high_contrast_light())


# In[8]:


data = {'name': ['pen', 'brush', 'paper'],
        'slice': [1, 3, 3]}
ggplot(data) + \
    geom_pie(aes(fill='name', slice='slice'),
             stat='identity', color='pen',
             tooltips='none', labels=layer_labels().line('@name')) + \
    scale_fill_manual(['pen', 'brush', 'paper'])


# ### Overwriting of Local Theme

# In[9]:


data = {'name': ['pen', 'brush', 'paper'],
        'slice': [1, 3, 3]}
ggplot(data) + \
    geom_pie(aes(fill='name', slice='slice'),
             stat='identity', color='pen',
             tooltips='none', labels=layer_labels().line('@name')) + \
    scale_fill_manual(['pen', 'brush', 'paper']) +\
    theme(panel_background=element_rect(fill='yellow')) +\
    theme_classic() +\
    flavor_darcula() +\
    flavor_high_contrast_light()


# ### `gggrid()` and `GGbunch()`

# In[10]:


LetsPlot.set_theme(theme_bw() 
                   + flavor_darcula() 
                   + theme(panel_background=element_rect(fill='yellow')))


# In[11]:


np.random.seed(42)
n = 100
x = np.arange(n)
y = np.random.normal(size=n)
w, h = 200, 150


# In[12]:


p = ggplot({'x': x, 'y': y}, aes(x='x', y='y')) + ggsize(w, h)
plot_list=[
    gggrid([p+geom_point(), p+geom_histogram(bins=3)]),
    p+geom_line()
]
gggrid(plot_list, ncol=1) + ggsize(400, 300)


# In[13]:


p = ggplot({'x': x, 'y': y}, aes(x='x', y='y')) + ggsize(w, h)
bunch = GGBunch()
bunch.add_plot(p + geom_point(), 0, 0)
bunch.add_plot(p + geom_histogram(bins=3), w, 0)
bunch.add_plot(p + geom_line(), 0, h, 2*w, h)
bunch.show()


# ### Wrong Type Exception

# In[14]:


LetsPlot.set_theme(theme(panel_background=element_rect(fill='yellow')) 
                   + theme_bw() 
                   + flavor_darcula() 
                   + flavor_high_contrast_light()
                   + geom_point())