From 15b01266e1d7e193280658f300fd7d95bd918626 Mon Sep 17 00:00:00 2001
From: Cyrille Bagard <nocbos@gmail.com>
Date: Sun, 14 Jan 2018 21:40:23 +0100
Subject: Created an initial version with dummy rendering.

---
 board.py      | 441 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 chrysalide.sh |  10 ++
 gas.py        |  78 +++++++++++
 3 files changed, 529 insertions(+)
 create mode 100644 board.py
 create mode 100755 chrysalide.sh
 create mode 100644 gas.py

diff --git a/board.py b/board.py
new file mode 100644
index 0000000..aeda474
--- /dev/null
+++ b/board.py
@@ -0,0 +1,441 @@
+# -*- coding: utf-8 -*-
+
+import cairo
+import math
+
+
+class DynamicFlyer:
+    """Producer of a nice graphic."""
+
+
+    def __init__(self, square):
+        """Prepare the rendering of statistics."""
+
+        self._square = square
+        self._width = square * 2
+        self._height = square * 3 + 130
+
+        self._surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, self._width, self._height)
+
+        self._cr = cairo.Context(self._surface)
+
+        self._cr.select_font_face('Verdana', cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_NORMAL)
+
+        self._backcolor = (1.0, 1.0, 1.0)
+        self._forecolor = (0.0, 0.0, 0.0)
+
+        self._cr.rectangle(0, 0, self._width, self._height)
+        self._cr.set_source_rgba(*self._backcolor, 1.0)
+        self._cr.fill()
+
+        self._caption_sep = 15
+        self._caption_width = 15
+        self._caption_space = 6
+
+        self._current_left = 0
+        self._current_top = 0
+        self._current_height = 0
+        self._next_top = 0
+
+
+    def _book_room(self, width, height):
+        """Reserve space for drawings."""
+
+        if (self._current_left + width) > self._width:
+
+            self._current_left = 0
+            self._current_top = self._next_top
+
+            self._current_height = height
+
+            self._next_top = self._current_top + height
+
+        else:
+
+            if height > self._current_height:
+
+                self._next_top += (height - self._current_height)
+                self._current_height = height
+
+        self._cr.save()
+
+        self._cr.translate(self._current_left, self._current_top)
+
+        self._current_left += width
+
+
+    def print_header(self, text):
+        """Display a main caption."""
+
+        self._cr.set_font_size(26)
+
+        fascent, fdescent, fheight, fxadvance, fyadvance = self._cr.font_extents()
+        x_off, y_off, tw, th = self._cr.text_extents(text)[:4]
+
+        self._book_room(self._width, fheight + 10)
+
+        nx = -tw / 2.0
+        ny = fheight
+
+        self._cr.save()
+
+        self._cr.translate(self._width / 2, 0)
+        self._cr.translate(nx, ny)
+
+        self._cr.move_to(0, 0)
+
+        self._cr.set_source_rgba(*self._forecolor, 1.0)
+
+        self._cr.show_text(text)
+
+        self._cr.restore()
+
+
+    def render_commit_timeline(self, start, end, data, created, color):
+        """Render a chart for all commits."""
+
+        self._book_room(self._width, self._square)
+
+        hmargin = self._width * 0.1
+        vmargin = self._square * 0.1
+
+        width = self._width - 2 * hmargin
+        height = self._square - 2 * vmargin
+
+        self._cr.save()
+
+        self._cr.translate(hmargin, vmargin)
+
+        # Find the max and normalize
+
+        max_vol = max(data.values())
+
+        sx = width / (end - start)
+        sy = height / max_vol
+
+        self._cr.save()
+
+        self._cr.scale(sx, sy)
+
+        # Display volumes
+
+        first = min(data.keys())
+
+        if created:
+
+            self._cr.move_to(first, max_vol)
+
+        else:
+
+            self._cr.move_to(0, max_vol)
+            self._cr.line_to(0, max_vol - data[first])
+
+        for time in sorted(data.keys()):
+
+            vol = data[time]
+
+            self._cr.line_to(time, max_vol - vol)
+
+        last = max(data.keys())
+
+        self._cr.line_to(last, max_vol)
+
+        self._cr.close_path()
+
+        self._cr.set_source_rgba(*color, 0.5)
+        self._cr.fill_preserve()
+
+        self._cr.set_source_rgba(*color, 1.0)
+        self._cr.set_line_width(1 / sx)
+        self._cr.stroke()
+
+        # Display commits
+
+        for time, vol in data.items():
+
+            self._cr.rectangle(time - 2 / sx, max_vol - vol - 2 / sy, 4 / sx, 4 / sy)
+
+            self._cr.set_source_rgba(*color, 1.0)
+            self._cr.set_line_width(0.5)
+            self._cr.fill()
+
+        self._cr.restore()
+
+        # Display the borders
+
+        self._cr.move_to(0, 0)
+        self._cr.line_to(0, height)
+        self._cr.line_to(width, height)
+
+        self._cr.set_source_rgba(*self._forecolor, 0.7)
+        self._cr.stroke()
+
+        self._cr.move_to(0, 0)
+        self._cr.line_to(-4, 10)
+        self._cr.line_to(4, 10)
+
+        self._cr.set_source_rgba(*self._forecolor, 1.0)
+        self._cr.fill()
+
+        self._cr.move_to(width, height)
+        self._cr.line_to(width - 10, height - 4)
+        self._cr.line_to(width - 10, height + 4)
+
+        self._cr.set_source_rgba(*self._forecolor, 1.0)
+        self._cr.fill()
+
+        self._cr.restore()
+
+        # Print a caption as explaination
+
+        count = len(data.values())
+        min_vol = min(data.values())
+
+        unit = ''
+
+        if min_vol > 1000 or max_vol > 1000:
+
+            min_vol /= 1000
+            max_vol /= 1000
+
+            unit = 'k'
+
+            if min_vol > 1000 or max_vol > 1000:
+
+                min_vol /= 1000
+                max_vol /= 1000
+
+                unit = 'M'
+
+        caption = '%u commit%s - min: %u %sSLOC - max: %u %sSLOC' \
+                  % (count, 's' if count > 1 else '', min_vol, unit, max_vol, unit)
+
+        self._cr.set_font_size(16)
+
+        fascent, fdescent, fheight, fxadvance, fyadvance = self._cr.font_extents()
+        x_off, y_off, tw, th = self._cr.text_extents(caption)[:4]
+
+        nx = -tw / 2.0
+        ny = fheight
+
+        self._cr.save()
+
+        self._cr.translate(self._width / 2, height + 2 * vmargin)
+        self._cr.translate(nx, ny)
+
+        self._cr.move_to(0, 0)
+
+        self._cr.set_source_rgba(*self._forecolor, 1.0)
+
+        self._cr.show_text(caption)
+
+        self._cr.restore()
+
+
+    def _render_pie(self, title, data, colors):
+        """Render a pie chart."""
+
+        cx = self._square / 2
+        cy = (self._square / 2) * 0.8
+
+        radius = self._square / 4
+
+        # Processing data
+
+        stats = []
+
+        count = 0
+        total = 0
+
+        for k, v in data.items():
+
+            stats.append((v, k))
+
+            count += 1
+            total += v
+
+        stats = sorted(stats)
+
+        # Drawing results
+
+        done = 0
+
+        init_angle = - (stats[0][0] * math.pi) / (2 * total)
+
+        last_angle = init_angle
+
+        for stat in stats:
+
+            angle1 = last_angle
+
+            if (done + 1) == count:
+                angle2 = init_angle
+
+            else:
+                angle2 = angle1 + (stat[0] * math.pi) / total
+
+            self._cr.move_to(cx, cy)
+            self._cr.arc(cx, cy, radius, angle1, angle2)
+            self._cr.line_to(cx, cy)
+
+            self._cr.set_source_rgba(*colors[done], 0.5)
+            self._cr.fill_preserve()
+
+            self._cr.set_source_rgba(*self._backcolor, 1.0)
+            self._cr.set_line_width(2)
+            self._cr.stroke()
+
+            done += 1
+            last_angle = angle2
+
+        done = 0
+
+        last_angle = init_angle
+
+        for stat in stats:
+
+            angle1 = last_angle
+
+            if (done + 1) == count:
+                angle2 = init_angle
+
+            else:
+                angle2 = angle1 + (stat[0] * math.pi) / total
+
+            self._cr.arc(cx, cy, radius, angle1, angle2)
+
+            self._cr.set_source_rgba(*colors[done], 1.0)
+            self._cr.set_line_width(10)
+            self._cr.stroke()
+
+            done += 1
+            last_angle = angle2
+
+        # Printing the title
+
+        py = cy + radius * 1.4
+
+        self._cr.set_font_size(24)
+
+        fascent, fdescent, fheight, fxadvance, fyadvance = self._cr.font_extents()
+        x_off, y_off, tw, th = self._cr.text_extents(title)[:4]
+
+        nx = -tw / 2.0
+        ny = fheight / 2
+
+        self._cr.save()
+
+        self._cr.translate(cx, py)
+        self._cr.translate(nx, ny)
+
+        self._cr.move_to(0, 0)
+
+        self._cr.set_source_rgba(*self._forecolor, 1.0)
+
+        self._cr.show_text(title)
+
+        self._cr.restore()
+
+        py += fheight
+
+        # Printing the related captions
+
+        full_width = 0
+
+        self._cr.set_font_size(16)
+
+        for stat in stats:
+
+            x_off, y_off, tw, th = self._cr.text_extents(stat[1])[:4]
+
+            if full_width > 0:
+                full_width += self._caption_sep
+
+            full_width += self._caption_width + self._caption_space
+            full_width += tw
+
+        fascent, fdescent, fheight, fxadvance, fyadvance = self._cr.font_extents()
+
+        nx = -full_width / 2.0
+        ny = fheight / 2
+
+        done = 0
+
+        start = 0
+
+        for stat in stats:
+
+            x_off, y_off, tw, th = self._cr.text_extents(stat[1])[:4]
+
+            self._cr.save()
+
+            self._cr.translate(cx, py)
+            self._cr.translate(nx + start, ny)
+
+            # Color
+
+            top = -fheight + fdescent + (fheight - self._caption_width / 2) / 2
+
+            self._cr.rectangle(0, top, self._caption_width, self._caption_width / 2)
+
+            self._cr.set_source_rgba(*colors[done], 0.7)
+            self._cr.fill_preserve()
+
+            self._cr.set_source_rgba(*colors[done], 1.0)
+            self._cr.set_line_width(1)
+            self._cr.stroke()
+
+            # Text
+
+            self._cr.move_to(self._caption_width + self._caption_space, 0)
+
+            self._cr.set_source_rgba(*self._forecolor, 1.0)
+
+            self._cr.show_text(stat[1])
+
+            self._cr.restore()
+
+            start += self._caption_width + self._caption_space + tw + self._caption_sep
+
+            done += 1
+
+
+    def render_pie(self, title, data, colors):
+        """Render a pie chart."""
+
+        self._book_room(self._square, self._square)
+
+        self._render_pie(title, data, colors)
+
+        self._cr.restore()
+
+
+    def print_footer(self, text):
+        """Display an ending caption."""
+
+        self._cr.set_font_size(24)
+
+        fascent, fdescent, fheight, fxadvance, fyadvance = self._cr.font_extents()
+        x_off, y_off, tw, th = self._cr.text_extents(text)[:4]
+
+        nx = -tw / 2.0
+        ny = fheight
+
+        self._cr.save()
+
+        self._cr.translate(self._width / 2, self._height - 1.8 * fheight)
+        self._cr.translate(nx, 0)
+
+        self._cr.move_to(0, 0)
+
+        self._cr.set_source_rgba(*self._forecolor, 1.0)
+
+        self._cr.show_text(text)
+
+        self._cr.restore()
+
+
+    def save(self, filename):
+        """Store all the renderings into a PNG file."""
+
+        self._surface.write_to_png(filename)
diff --git a/chrysalide.sh b/chrysalide.sh
new file mode 100755
index 0000000..b43716c
--- /dev/null
+++ b/chrysalide.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+OUTPUT="2017-2018.png"
+
+python3 ./gas.py \
+        --header "Chrysalide's Git repository in 2017" \
+        --footer "Get more info at chrysalide.re" \
+        --output $OUTPUT
+
+eog $OUTPUT
diff --git a/gas.py b/gas.py
new file mode 100644
index 0000000..40509e8
--- /dev/null
+++ b/gas.py
@@ -0,0 +1,78 @@
+# -*- coding: utf-8 -*-
+
+import argparse
+from board import DynamicFlyer
+
+
+
+
+
+
+if __name__ == '__main__':
+
+    parser = argparse.ArgumentParser()
+
+    parser.add_argument('--header', help='Define the main title of the picture', type=str, required=True)
+    parser.add_argument('--footer', help='Define a conclusion for the picture', type=str, required=True)
+    parser.add_argument('--output', help='Set the output filename', type=str, required=True)
+
+    args = parser.parse_args()
+
+
+
+    flyer = DynamicFlyer(250)
+
+    flyer.print_header(args.header)
+
+    data = {
+        100 : 100,
+        200 : 123,
+        400 : 700,
+        600 : 650,
+        900 : 900
+    }
+
+    color = (0.5, 0.2, 0.7)
+
+    color = (0.047, 0.365, 0.533)
+
+    flyer.render_commit_timeline(0, 1000, data, False, color)
+
+    colors = [ (0.812, 0.176, 0.08), (0.04, 0.58, 0.255) ]
+
+    colors = [ (0.643, 0.133, 0), (0, 0.459, 0.20) ]
+
+    colors = [ (1.0, 0.353, 0.165), (0.118, 0.71, 0.392) ]
+
+    data = {
+        'Insertions' : 794,
+        'Deletions' : 312
+    }
+
+    flyer.render_pie('Code', data, colors)
+
+    data = {
+        'Added' : 100,
+        'Removed' : 13
+    }
+
+    flyer.render_pie('Files', data, colors)
+
+    data = {
+        'C' : 2489,
+        'Python' : 631
+    }
+
+    flyer.render_pie('Languages', data, colors)
+
+    data = {
+        'Remaining' : 89,
+        'Killed' : 31
+    }
+
+    flyer.render_pie('TODO / FIXME', data, colors)
+
+
+    flyer.print_footer(args.footer)
+
+    flyer.save(args.output)
-- 
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