/usr/share/pyshared/tryton/gui/window/view_form/view/graph_gtk/graph.py is in tryton-client 2.2.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#this repository contains the full copyright notices and license terms.
#This code is inspired by the pycha project (http://www.lorenzogil.com/projects/pycha/)
import gtk
from functools import reduce
from tryton.common import hex2rgb, generateColorscheme, DT_FORMAT, \
DHM_FORMAT, COLOR_SCHEMES, datetime_strftime
from tryton.pyson import PYSONDecoder
import locale
import math
import datetime
import time
from dateutil.relativedelta import relativedelta
import tryton.rpc as rpc
import cairo
from tryton.action import Action
from tryton.translate import date_format
from tryton.gui.window import Window
class Popup(object):
def __init__(self, widget):
self.win = gtk.Window(gtk.WINDOW_POPUP)
self.win.set_name('gtk-tooltips')
self.win.set_resizable(False)
self.win.set_border_width(1)
self.win.set_transient_for(widget.window)
self.label = gtk.Label()
self.win.add(self.label)
self.win.connect('enter-notify-event', self.enter)
def set_text(self, text):
self.label.set_text(text)
def set_position(self, widget, x, y):
widget_x, widget_y = widget.window.get_origin()
width, height = widget.window.get_size()
popup_width, popup_height = self.win.get_size()
if x < popup_width // 2:
x = popup_width // 2
if x > width - popup_width // 2:
x = width - popup_width // 2
pos_x = widget_x + x - popup_width // 2
if pos_x < 0:
pos_x = 0
if y < popup_height + 5:
y = popup_height + 5
if y > height:
y = height
pos_y = widget_y + y - popup_height - 5
if pos_y < 0:
pos_y = 0
self.win.move(int(pos_x), int(pos_y))
def show(self):
self.win.show_all()
def hide(self):
self.win.hide()
def destroy(self):
self.win.destroy()
def enter(self, widget, event):
self.win.hide()
class Graph(gtk.DrawingArea):
'Graph'
__gsignals__ = { "expose-event": "override" }
def __init__(self, xfield, yfields, attrs, model):
super(Graph, self).__init__()
self.xfield = xfield
self.yfields = yfields
self.datas = {}
self.topPadding = 15
self.bottomPadding = 15
self.rightPadding = 30
self.leftPadding = 30
self.set_events(gtk.gdk.POINTER_MOTION_MASK)
self.connect('motion-notify-event', self.motion)
self.connect('leave-notify-event', self.leave)
self.popup = Popup(self)
self.attrs = attrs
self.model = model
def destroy(self):
self.popup.destroy()
super(Graph, self).destroy()
def motion(self, widget, event):
self.popup.set_position(self, event.x, event.y)
def leave(self, widget, event):
self.popup.hide()
# Handle the expose-event by drawing
def do_expose_event(self, event):
# Create the cairo context
cr = self.window.cairo_create()
# Restrict Cairo to the exposed area; avoid extra work
cr.rectangle(event.area.x, event.area.y,
event.area.width, event.area.height)
cr.clip()
self.updateArea(cr, *self.window.get_size())
self.drawBackground(cr, *self.window.get_size())
self.drawLines(cr, *self.window.get_size())
self.drawGraph(cr, *self.window.get_size())
self.drawAxis(cr, *self.window.get_size())
self.drawLegend(cr, *self.window.get_size())
def export_png(self, filename, width, height):
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, width, height)
cx = cairo.Context(surface)
self.updateArea(cx, width, height)
self.drawBackground(cx, width, height)
self.drawLines(cx, width, height)
self.drawGraph(cx, width, height)
self.drawAxis(cx, width, height)
self.drawLegend(cx, width, height)
surface.write_to_png(filename.encode('utf-8'))
self.queue_draw()
def action(self):
self.popup.hide()
def action_keyword(self, ids):
if not ids:
return
ctx = self.group.context.copy()
if 'active_ids' in ctx:
del ctx['active_ids']
if 'active_id' in ctx:
del ctx['active_id']
event = gtk.get_current_event()
allow_similar = False
if (event.state & gtk.gdk.CONTROL_MASK
or event.state & gtk.gdk.MOD1_MASK):
allow_similar = True
with Window(hide_current=True, allow_similar=allow_similar):
return Action.exec_keyword('graph_open', {
'model': self.model,
'id': ids[0],
'ids': ids,
}, context=ctx, warning=False)
def drawBackground(self, cr, width, height):
# Fill the background
cr.save()
r, g, b = hex2rgb(self.attrs.get('background', '#d5d5d5'))
linear = cairo.LinearGradient(width // 2, 0, width // 2, height)
linear.add_color_stop_rgb(0, 1, 1, 1)
linear.add_color_stop_rgb(1, r, g, b)
cr.set_source(linear)
cr.rectangle(0, 0, width, height)
cr.fill()
cr.stroke()
cr.restore()
def drawGraph(self, cr, width, height):
pass
def YLabels(self):
ylabels = []
if self.yrange == 0.0:
base = 1
else:
base = 10**int(math.log(self.yrange, 10))
for i in xrange(int(self.yrange / base) + 1):
val = int(self.minyval / base) * base + i * base
h = (val - self.minyval) * self.yscale
label = locale.format('%.2f', val, True)
ylabels.append((h, label))
return ylabels
def XLabels(self):
xlabels = []
i = 0.0
keys = self.datas.keys()
keys.sort()
for key in keys:
if self.xrange == 0:
w = 1.0
else:
w = i / self.xrange
xlabels.append((w, str(self.labels[key])))
i += 1
return xlabels
def drawAxis(self, cr, width, height):
cr.set_source_rgb(*hex2rgb('#000000'))
cr.set_line_width(1.5)
# Y axis
def drawYLabel(h, label):
x = self.area.x
y = self.area.y + self.area.h - h * self.area.h
cr.new_path()
cr.move_to(x, y)
cr.line_to(x - 3.0, y)
cr.close_path()
cr.stroke()
extends = cr.text_extents(label)
labelWidth = extends[2]
labelHeight = extends[3]
if labelWidth <= self.area.x:
cr.move_to(x - 3.0 - labelWidth - 5, y + labelHeight / 2.0)
cr.show_text(label)
for h, label in self.YLabels():
drawYLabel(h, label)
cr.new_path()
cr.move_to(self.area.x, self.area.y)
cr.line_to(self.area.x, self.area.y + self.area.h)
cr.close_path()
cr.stroke()
# X axis
def drawXLabel(w, label):
x = self.area.x + w * self.area.w
y = self.area.y + self.area.h
cr.new_path()
cr.move_to(x, y)
cr.line_to(x, y + 3.0)
cr.close_path()
cr.stroke()
extends = cr.text_extents(label)
labelWidth = extends[2]
labelHeight = extends[3]
if labelWidth <= self.xscale * self.area.w:
cr.move_to(x - labelWidth / 2.0, y + labelHeight + 5)
cr.show_text(label)
for w, label in self.XLabels():
drawXLabel(w, label)
cr.new_path()
cr.move_to(self.area.x, self.area.y + self.area.h)
cr.line_to(self.area.x + self.area.w, self.area.y + self.area.h)
cr.close_path()
cr.stroke()
def drawLines(self, cr, width, height):
for h, label in self.YLabels():
self.drawLine(cr, 0, h)
def drawLine(self, cr, x, y):
if x:
x1 = x2 = self.area.x + x * self.area.w
y1 = self.area.y
y2 = y1 + self.area.h
else:
y1 = y2 = self.area.y + self.area.h - y * self.area.h
x1 = self.area.x
x2 = x1 + self.area.w
cr.save()
cr.set_source_rgb(*hex2rgb('#808080'))
cr.set_line_width(1.5)
cr.new_path()
cr.move_to(x1, y1)
cr.line_to(x2, y2)
cr.close_path()
cr.stroke()
cr.restore()
def drawLegend(self, cr, width, height):
if not self.attrs.get('legend', True):
return
padding = 4
bullet = 15
width = 0
height = padding
keys = self._getDatasKeys()
if not keys:
return
keys2txt = {}
for yfield in self.yfields:
keys2txt[yfield.get('key', yfield['name'])] = yfield['string']
for key in keys:
extents = cr.text_extents(keys2txt[key])
width = max(extents[2], width)
height += max(extents[3], bullet) + padding
width = padding + bullet + padding + width + padding
pos_x, pos_y = self._getLegendPosition(width, height)
cr.save()
cr.rectangle(pos_x, pos_y, width, height)
cr.set_source_rgba(1, 1, 1, 0.8)
cr.fill_preserve()
cr.set_line_width(2)
cr.set_source_rgb(*hex2rgb('#000000'))
cr.stroke()
def drawKey(key, x, y, text_height):
cr.rectangle(x, y, bullet, bullet)
cr.set_source_rgb(*self.colorScheme[key])
cr.fill_preserve()
cr.set_source_rgb(0, 0, 0)
cr.stroke()
cr.move_to(x + bullet + padding,
y + bullet / 2.0 + text_height / 2.0)
cr.show_text(keys2txt[key])
cr.set_line_width(1)
x = pos_x + padding
y = pos_y + padding
for key in keys:
extents = cr.text_extents(keys2txt[key])
drawKey(key, x, y, extents[3])
y += max(extents[3], bullet) + padding
cr.restore()
def _getLegendPosition(self, width, height):
return self.area.x + self.area.w * 0.05, \
self.area.y + self.area.h * 0.05
def display(self, group):
self.updateDatas(group)
self.setColorScheme()
self.updateXY()
self.updateGraph()
self.queue_draw()
def updateDatas(self, group):
self.datas = {}
self.labels = {}
self.ids = {}
self.group = group
minx = None
maxx = None
for model in group:
x = model[self.xfield['name']].get(model)
if not minx:
minx = x
if not maxx:
maxx = x
minx = min(minx, x)
maxx = max(maxx, x)
self.labels[x] = model[self.xfield['name']].get_client(model)
self.ids.setdefault(x, [])
self.ids[x].append(model.id)
self.datas.setdefault(x, {})
for yfield in self.yfields:
name = yfield['name']
key = yfield.get('key', yfield['name'])
self.datas[x].setdefault(key, 0.0)
if yfield.get('domain'):
context = rpc.CONTEXT.copy()
context['context'] = context.copy()
context['_user'] = rpc._USER
for field in model.group.fields:
context[field] = model[field].get(model,
check_load=False)
if not PYSONDecoder(context).decode(yfield['domain']):
continue
if yfield['name'] == '#':
self.datas[x][key] += 1
else:
self.datas[x][key] += \
float(model[yfield['name']].get(model))
if isinstance(minx, datetime.datetime):
date = minx
while date <= maxx:
self.labels[date] = datetime_strftime(date, DT_FORMAT)
self.datas.setdefault(date, {})
for yfield in self.yfields:
self.datas[date].setdefault(
yfield.get('key', yfield['name']), 0.0)
date += relativedelta(days=1)
elif isinstance(minx, datetime.date):
date = minx
while date <= maxx:
self.labels[date] = datetime_strftime(date, DT_FORMAT)
self.datas.setdefault(date, {})
for yfield in self.yfields:
self.datas[date].setdefault(
yfield.get('key', yfield['name']), 0.0)
date += relativedelta(days=1)
def updateArea(self, cr, width, height):
maxylabel = ''
for value, label in self.YLabels():
if len(maxylabel) < len(label):
maxylabel = label
extends = cr.text_extents(maxylabel)
yLabelWidth = extends[2]
maxxlabel = ''
for value, label in self.XLabels():
if len(maxxlabel) < len(label):
maxxlabel = label
extends = cr.text_extents(maxxlabel)
xLabelHeight = extends[3]
if yLabelWidth > width / 3.0:
yLabelWidth = 0
width = width - self.leftPadding - yLabelWidth - self.rightPadding
height = height - self.topPadding - self.bottomPadding - xLabelHeight
self.area = Area(self.leftPadding + yLabelWidth, self.topPadding, width, height)
def updateXY(self):
self.maxxval = len(self.datas)
self.minxval = 0.0
self.xrange = self.maxxval - self.minxval
if self.xrange == 0:
self.xscale = 1.0
else:
self.xscale = 1.0 / self.xrange
if not self.datas.values():
self.maxyval = 0.0
self.minyval = 0.0
else:
self.maxyval = max([reduce(lambda x, y: max(x, y), x.values()) \
for x in self.datas.values()])
self.minyval = min([reduce(lambda x, y: min(x, y), x.values()) \
for x in self.datas.values()])
if self.minyval > 0:
self.minyval = 0.0
self.yrange = self.maxyval - self.minyval
if self.yrange == 0:
self.yscale = 1.0
else:
self.yscale = 1.0 / self.yrange
def updateGraph(self):
pass
def setColorScheme(self):
keys = self._getDatasKeys()
color = self.attrs.get('color', 'blue')
r, g, b = hex2rgb(COLOR_SCHEMES.get(color, color))
maxcolor = max(max(r, g), b)
self.colorScheme = generateColorscheme(color, keys + ['__highlight'],
maxcolor / (len(keys) or 1))
for yfield in self.yfields:
if yfield.get('color'):
self.colorScheme[yfield.get('key', yfield['name'])] = hex2rgb(
COLOR_SCHEMES.get(yfield['color'], yfield['color']))
def _getDatasKeys(self):
return [x.get('key', x['name']) for x in self.yfields]
class Area(object):
def __init__(self, x, y, w, h):
self.x, self.y, self.w, self.h = x, y, w, h
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