nixcon2015: add intro

nixcon2015/__init__.py

@@ -0,0 +1,122 @@
+#!/usr/bin/python3
+
+from renderlib import *
+from easing import *
+import math
+
+# URL to Schedule-XML
+scheduleUrl = 'https://n621.de/fud/nixcon.xml'
+
+# For (really) too long titles
+titlemap = {
+    #708: "Neue WEB-Anwendungen des LGRB Baden-Württemberg im Überblick"
+}
+
+def introFrames(params):
+    move=40
+
+    # wait
+    frames = 1*fps
+    for i in range(0, frames):
+        yield (
+        )
+
+    deltas = {}
+    for segment in range(1, 7):
+        angle = 60 * (segment - 1)
+        dist = 1000
+
+        dx = -dist * math.cos(math.radians(angle))
+        dy = -dist * math.sin(math.radians(angle))
+
+        deltas[segment] = (dx, dy)
+
+    # fly out
+    frames = int(1.5*fps)
+    for i in range(0, frames):
+        placements = []
+        for segment in range(1, 7):
+            x = easeInCubic(i, 0, deltas[segment][0], frames)
+            y = easeInCubic(i, 0, deltas[segment][1], frames)
+            opacity = 1 - easeInCubic(i, 0, 1, int(0.8*frames))
+
+            placements.extend([
+                ('segment%u' % segment, 'attr', 'transform', 'translate(%.4f, %.4f)' % (x, y)),
+                ('segment%u' % segment, 'style', 'opacity', '%.4f' % opacity)
+            ])
+
+        logotext_dx = easeInCubic(i, 0, 2000, frames)
+        logotext_opacity = 1 - easeInCubic(i, 0, 1, 20)
+
+        placements.extend([
+            ('logotext', 'attr', 'transform', 'translate(%.4f, 0)' % logotext_dx),
+            ('logotext', 'style', 'opacity', '%.4f' % logotext_opacity),
+        ])
+
+        if i > int(frames/2):
+            sub_frames = frames - int(frames/2)
+            sub_i = i - int(frames/2)
+
+            talk_opacity = easeInCubic(sub_i, 0, 1, sub_frames)
+
+            placements.extend([
+                ('title', 'style', 'opacity', '%.4f' % talk_opacity),
+                ('person', 'style', 'opacity', '%.4f' % talk_opacity),
+            ])
+
+
+        yield placements
+
+    # wait
+    frames = int(2.5*fps)
+    for i in range(0, frames):
+        yield (
+            ('title', 'style', 'opacity', '%.4f' % 1),
+            ('person', 'style', 'opacity', '%.4f' % 1),
+        )
+
+def outroFrames(params):
+    pass
+
+
+def debug():
+    #render(
+    #    'outro.svg',
+    #    '../outro.dv',
+    #    outroFrames
+    #)
+
+    render(
+        'intro.svg',
+        '../intro.dv',
+        introFrames,
+        {
+            '$id': 904,
+            '$title': 'The sorry state of Python packaging and how it reflects in Nix',
+            '$personnames': 'Domen Kožar'
+        }
+    )
+
+def tasks(queue, params):
+    # iterate over all events extracted from the schedule xml-export
+    for event in events(scheduleUrl, titlemap):
+
+        # generate a task description and put them into the queue
+        queue.put(Rendertask(
+            infile = 'intro.svg',
+            outfile = str(event['id'])+".dv",
+            sequence = introFrames,
+            parameters = {
+                '$id': event['id'],
+                '$title': event['title'],
+                '$subtitle': event['subtitle'],
+                '$personnames': event['personnames']
+            }
+        ))
+
+        # place a task for the outro into the queue
+        #queue.put(Rendertask(
+        #        infile = 'outro.svg',
+        #        outfile = 'outro.dv',
+        #        sequence = outroFrames
+        #))