From 31243bcc6fe41a0dacd8e6f3a94c73b047101d09 Mon Sep 17 00:00:00 2001
From: "J.A. de Jong" <j.a.dejong@ascee.nl>
Date: Thu, 4 Oct 2018 15:41:15 +0200
Subject: [PATCH] report_quality to init_backend.

---
 lasp/tools/__init__.py |  5 ++--
 lasp/tools/config.py   | 60 +++++++++++++++++++++---------------------
 lasp/tools/plot.py     | 11 +++-----
 3 files changed, 36 insertions(+), 40 deletions(-)

diff --git a/lasp/tools/__init__.py b/lasp/tools/__init__.py
index 3a47535..04da443 100644
--- a/lasp/tools/__init__.py
+++ b/lasp/tools/__init__.py
@@ -1,7 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-from .config import report_quality
-from .report_tools import *
+from .config import init_backend
 from lasp.lasp_common import FreqWeighting, TimeWeighting
-__all__ = ['report_quality', 'PSPlot', 'LevelBars', 'Levels', 'close',
+__all__ = ['init_backend',
            'FreqWeighting', 'TimeWeighting']
diff --git a/lasp/tools/config.py b/lasp/tools/config.py
index 5210547..66313ea 100644
--- a/lasp/tools/config.py
+++ b/lasp/tools/config.py
@@ -5,40 +5,40 @@ Author: J.A. de Jong - ASCEE
 
 Description:
 """
-__all__ = ['report_quality', 'getReportQuality']
+__all__ = ['init_backend', 'getReportQuality']
 
 _report_quality = False
+_init = False
+
+
+def init_backend(report_quality=False):
+    global _init
+    if not _init:
+        print('Initializing matplotlib...')
+        _init = True
+        import matplotlib
+        matplotlib.use('Qt5Agg')
+        preamble = [
+              r'\usepackage{libertine-type1}'
+              r'\usepackage[libertine]{newtxmath}'
+              # r'\usepackage{fontspec}',
+              # r'\setmainfont{Libertine}',
+        ]
+        params = {
+            'font.family': 'serif',
+            'text.usetex': True,
+            'text.latex.unicode': True,
+            'pgf.rcfonts': False,
+            'pgf.texsystem': 'pdflatex',
+            'pgf.preamble': preamble,
+        }
+        matplotlib.rcParams.update(params)
+        global _report_quality
+        _report_quality = report_quality
+        import matplotlib.pyplot as plt
+        plt.ion()
 
 
 def getReportQuality():
     global _report_quality
     return _report_quality
-
-
-def report_quality():
-    import matplotlib as mpl
-    # mpl.use('Qt5Agg')
-    global _report_quality
-    # mpl.use("pgf")
-    # rc('font',**{'family':'serif','serif':['Libertine']})
-    # for Palatino and other serif fonts use:
-    # rc('font',**{'family':'serif','serif':['Palatino']})
-    # rc('text', usetex=True)
-    # TeX preamble
-    preamble = [
-          r'\usepackage{libertine-type1}'
-          r'\usepackage[libertine]{newtxmath}'
-          # r'\usepackage{fontspec}',
-          # r'\setmainfont{Libertine}',
-    ]
-    params = {
-        'font.family': 'serif',
-        'text.usetex': True,
-        'text.latex.unicode': True,
-        'pgf.rcfonts': False,
-        'pgf.texsystem': 'pdflatex',
-        'pgf.preamble': preamble,
-    }
-    mpl.rcParams.update(params)
-
-    _report_quality = True
diff --git a/lasp/tools/plot.py b/lasp/tools/plot.py
index 192d4d7..fe8f11b 100644
--- a/lasp/tools/plot.py
+++ b/lasp/tools/plot.py
@@ -15,9 +15,6 @@ from lasp.lasp_common import (PLOT_COLORS_LIST, PLOT_NOCOLORS_LIST,
                               DEFAULT_FIGSIZE_H, DEFAULT_FIGSIZE_W)
 
 
-def close():
-    plt.close('all')
-
 
 class Figure:
     def __init__(self, **kwargs):
@@ -43,7 +40,8 @@ class Figure:
 
         linewidths = cycler(linewidth=[1, 2, 1, 2, 2, 3, 2, 1])
 
-        linestyles = cycler(linestyle=['-', '-', '--', ':', '-', '--', ':', '-.', ])
+        linestyles = cycler(
+            linestyle=['-', '-', '--', ':', '-', '--', ':', '-.', ])
 
         self._ax = []
         self._legend = {}
@@ -75,8 +73,7 @@ class Figure:
         for ax in self._ax:
             ax.grid(True, 'both')
         self._zorder -= 1
-        if not getReportQuality():
-            self._f.show()
+        self.fig.show()
 
     def vline(self, x):
         self._ax[0].axvline(x)
@@ -121,7 +118,7 @@ class Figure:
         self._cur_ax.legend(self._legend[self._cur_col][self._cur_col])
 
     def savefig(self, *args, **kwargs):
-        self._f.savefig(*args, **kwargs)
+        self.fig.savefig(*args, **kwargs)
 
     def xlim(self, *args, **kwargs):
         all_ax = kwargs.pop('all_ax', False)