def test_text(self):
with self.draw_and_check():
font = Font(family=MODERN)
font.size = 24
self.gc.set_font(font)
self.gc.set_text_position(23, 67)
self.gc.show_text("hello kiva")
def test_locale_independence(self):
# Ensure that >ASCII Unicode text is decoded correctly regardless of
# the locale.
text = u'\N{GREEK SMALL LETTER MU}'
with locale_context(locale.LC_CTYPE, ('en', 'UTF-8')):
gc = agg.GraphicsContextArray((200, 200))
f = Font('modern')
with gc:
gc.set_font(f)
gc.translate_ctm(50, 50)
tx0, _, _, _ = gc.get_text_extent(text)
gc.show_text(text)
x0, _ = gc.get_text_position()
with locale_context(locale.LC_CTYPE, ('en', 'ASCII')):
gc = agg.GraphicsContextArray((200, 200))
f = Font('modern')
with gc:
gc.set_font(f)
gc.translate_ctm(50, 50)
tx1, _, _, _ = gc.get_text_extent(text)
gc.show_text(text)
x1, _ = gc.get_text_position()
self.assertEqual(tx1, tx0)
self.assertEqual(x1, x0)
def test_text(self):
with self.draw_and_check():
font = Font(family=MODERN)
font.size = 24
self.gc.set_font(font)
self.gc.set_text_position(23, 67)
self.gc.show_text("hello kiva")
def test_text_clip(self):
with self.draw_and_check():
self.gc.clip_to_rect(23, 77, 100, 23)
font = Font(family=MODERN)
font.size = 24
self.gc.set_font(font)
self.gc.set_text_position(23, 67)
self.gc.show_text("hello kiva")
def test_text_clip(self):
with self.draw_and_check():
self.gc.clip_to_rect(23, 77, 100, 23)
font = Font(family=MODERN)
font.size = 24
self.gc.set_font(font)
self.gc.set_text_position(23, 67)
self.gc.show_text("hello kiva")
def _draw_info(self, gc, lines):
if not self.tool.current_screen:
return
x, y = self.tool.current_screen
gc.set_font(Font('Arial'))
gc.set_fill_color((0.8, 0.8, 0.8))
lws, lhs = zip(*[gc.get_full_text_extent(mi)[:2] for mi in lines])
lw = max(lws)
lh = sum(lhs) * 1.25 + 2 * len(lhs)
xoffset = 12
yoffset = 10
x += xoffset
y -= yoffset
# if the box doesnt fit in window
# move left
x2 = self.component.x2
if x + lw > x2:
x = x2 - lw - 3
gc.rect(x, y - lh + 2, lw + 4, lh)
gc.draw_path()
gc.set_fill_color((0, 0, 0))
h = lhs[0] * 1.25
for i, mi in enumerate(lines):
gc.set_text_position(x + 2,
y - h * (i + 1)
)
gc.show_text(mi)
def from_wx_font(self, font):
""" Gets the application equivalent of a wxPython value.
"""
from pyface.ui.wx.font import wx_weight_to_weight
import kiva.constants as kc
from kiva.fonttools import Font
return Font(
size=font.GetPointSize(),
family={
wx.FONTFAMILY_DEFAULT: kc.DEFAULT,
wx.FONTFAMILY_DECORATIVE: kc.DECORATIVE,
wx.FONTFAMILY_ROMAN: kc.ROMAN,
wx.FONTFAMILY_SCRIPT: kc.SCRIPT,
wx.FONTFAMILY_SWISS: kc.SWISS,
wx.FONTFAMILY_MODERN: kc.MODERN,
}.get(font.GetFamily(), kc.SWISS),
weight=wx_weight_to_weight[font.GetWeight()],
style=(
# XXX: treat wx.FONTSTYLE_OBLIQUE as italic for now
kc.NORMAL
if font.GetStyle() == wx.FONTSTYLE_NORMAL else kc.ITALIC),
underline=font.GetUnderlined() - 0, # convert Bool to an int type
face_name=font.GetFaceName(),
)
def str_to_font(object, name, value):
"Converts a (somewhat) free-form string into a valid Font object."
# FIXME: Make this less free-form and more well-defined.
try:
point_size = 10
family = SWISS
style = NORMAL
weight = NORMAL
underline = 0
face_name = []
for word in value.split():
lword = word.lower()
if lword in font_families:
family = font_families[lword]
elif lword in font_styles:
style = font_styles[lword]
elif lword in font_weights:
weight = font_weights[lword]
elif lword == 'underline':
underline = 1
elif lword not in font_noise:
try:
point_size = int(lword)
except:
face_name.append(word)
return Font(face_name=" ".join(face_name),
size=point_size,
family=family,
weight=weight,
style=style,
underline=underline)
except:
pass
raise TraitError(object, name, 'a font descriptor string', repr(value))
def test_no_antialias(self):
gc = agg.GraphicsContextArray((200, 50), pix_format="bgra32")
f = Font('modern')
gc.set_font(f)
gc.set_antialias(0)
gc.show_text("hello")
save(gc, test_name() + '.bmp')
def _draw_label(self, gc):
with gc:
font = Font(family=MODERN)
gc.set_font(font)
x, y, width, height = gc.get_text_extent(self.label)
text_x = self.x + (self.width - width) / 2.0
text_y = self.y - height
gc.show_text(self.label, (text_x, text_y))
def test_get_set_font(self):
gc = agg.GraphicsContextArray((5, 5))
font1 = Font('modern')
gc.set_font(font1)
font3 = gc.get_font()
self.assertEqual(font1.face_name, font3.name)
self.assertEqual(font1.size, font3.size)
self.assertEqual(font1.family, font3.family)
self.assertEqual(font1.style, font3.style)
self.assertEqual(font1.encoding, font3.encoding)
def getFont(cls, font_name='Arial'):
kiva_style = constants.NORMAL
if '-' in font_name:
font_name, style = font_name.split('-', 2)
style = style.lower()
if 'bold' in style:
kiva_style += constants.BOLD
if 'italic' in style:
kiva_style += constants.ITALIC
return Font(font_name, style=kiva_style)
def font_metrics_provider():
from reportlab.pdfgen.canvas import Canvas
from reportlab.lib.pagesizes import letter
from kiva.fonttools import Font
# a file will not be created unless save() is called on the context
pdf_canvas = Canvas(filename='enable_tmp.pdf', pagesize=letter)
gc = GraphicsContext(pdf_canvas)
gc.set_font(Font())
return gc
def validate(self, object, name, value):
""" Validates that the value is a valid font.
"""
from kiva.fonttools import Font
if isinstance(value, Font):
return value
# Make sure all Kiva related data is loaded:
init_constants()
try:
point_size = 10
family = DEFAULT
style = NORMAL
weight = WEIGHT_NORMAL
underline = 0
facename = []
for word in value.split():
lword = word.lower()
if lword in font_families:
family = font_families[lword]
elif lword in font_styles:
style = font_styles[lword]
elif lword in font_weights:
weight = font_weights[lword]
elif lword == "underline":
underline = 1
elif lword not in font_noise:
try:
point_size = int(lword)
except Exception:
facename.append(word)
if facename == "":
facename = default_face.get(family, "")
# FIXME: The above if clause never happens, the below should
# be correct though it results in loading weird fonts.
# if facename == []:
# facename = [default_face.get(family, "")]
return Font(
face_name=" ".join(facename),
size=point_size,
family=family,
weight=weight,
style=style,
underline=underline,
)
except Exception:
pass
raise TraitError(object, name, "a font descriptor string", repr(value))
def GetFont(font):
""" Returns a Pylget Font object for the given Agg or Kiva font """
if isinstance(font, PygletFont):
pyglet_font = font
else:
# KivaGLFontType
key = (font.name, font.size, font.family, font.style)
if key not in GlobalFontCache:
if isinstance(font, KivaGLFontType):
kiva_gl_font = font
font = Font(
face_name=kiva_gl_font.name,
size=kiva_gl_font.size,
family=kiva_gl_font.family,
style=kiva_gl_font.style,
)
bold = font.is_bold()
italic = font.style in italic_styles
pyglet_font = load_font(font.findfontname(), font.size, bold,
italic)
GlobalFontCache[key] = pyglet_font
else:
pyglet_font = GlobalFontCache[key]
return pyglet_font
def draw(self, gc, view_bounds=None, mode="default"):
""" Draws the graph node
"""
font = Font(family=MODERN)
gc.set_font(font)
# update the size to match the text extent.
x, y, width, height = gc.get_text_extent(self.label)
self.width = width + self.padding_left + self.padding_right
self.height = height + self.padding_bottom + self.padding_top
self._draw_border(gc, view_bounds, mode)
self._draw_text(gc, view_bounds, mode)
def _draw_text(self, gc):
""" Draw the shape's text. """
if len(self.text) > 0:
gc.set_fill_color(self._get_text_color(self.event_state))
gc.set_font(Font(family=MODERN, size=16))
tx, ty, tw, th = gc.get_text_extent(self.text)
dx, dy = self.bounds
x, y = self.position
gc.set_text_position(x + (dx - tw) / 2, y + (dy - th) / 2)
gc.show_text(self.text)
return
def test_rotate(self):
text = "hello"
gc = agg.GraphicsContextArray((150, 150), pix_format="bgra32")
f = Font('modern')
gc.set_font(f)
tx, ty, sx, sy = bbox = gc.get_text_extent(text)
gc.translate_ctm(25, 25)
gc.rotate_ctm(pi / 2.)
gc.translate_ctm(0, -sy)
#gc.show_text(text)
gc.set_stroke_color([1, 0, 0])
gc.set_fill_color([.5, .5, .5])
gc.rect(tx, ty, sx, sy)
gc.stroke_path()
gc.show_text(text)
save(gc, test_name() + '.bmp')
def test():
allmetrics = []
for count in counts:
start = time.time()
for i in range(count):
metrics = FMP()
for face, size in fonts:
metrics.set_font(Font(face, size))
for s in strings:
dims = metrics.get_text_extent(s)
allmetrics.append(metrics)
end = time.time()
print("finished count=%d" % count)
print(" total time:", end - start)
print(" time/set_font:", (end - start) / float(count * len(fonts)))
def test_handling_text(gc):
font = Font(face_name="Arial", size=32)
gc.set_font(font)
gc.translate_ctm(100.0, 100.0)
gc.move_to(-5, 0)
gc.line_to(5, 0)
gc.move_to(0, 5)
gc.line_to(0, -5)
gc.move_to(0, 0)
gc.stroke_path()
txtRot = affine.affine_from_rotation(PI / 6)
gc.set_text_matrix(txtRot)
gc.show_text("Hello")
txtRot = affine.invert(txtRot)
gc.set_text_matrix(txtRot)
gc.show_text("inverted")
def _draw_info(self, plot, gc, lines):
if not self.tool.current_screen:
return
x, y = sx, sy = self.tool.current_screen
gc.set_font(Font('Arial'))
gc.set_fill_color((0.8, 0.8, 0.8))
lws, lhs = zip(*[gc.get_full_text_extent(mi)[:2] for mi in lines])
rect_width = max(lws) + 4
rect_height = (max(lhs) + 2) * len(lhs)
xoffset = 15
yoffset = -15
gc.translate_ctm(xoffset, yoffset)
# if the box doesnt fit in window
# move left
x2 = self.component.x2
y2 = self.component.y2
if x + xoffset + rect_width > x2:
x = x2 - rect_width - xoffset - 1
# move down if to tall
# if y + yoffset + rect_height > y2:
# y = y2 - rect_height - yoffset -1
# if current point within bounds of box, move box to left
if x < sx:
x = sx - rect_width - xoffset - 6
gc.translate_ctm(x, y - rect_height)
gc.rect(0, -2, rect_width, rect_height + 4)
gc.draw_path()
gc.set_fill_color((0, 0, 0))
h = max(lhs) + 2
# this is cause the pointer to change to an IBeam if the cursor is close the the box
# increase offsets? as a hack
for i, mi in enumerate(lines[::-1]):
gc.set_text_position(0, h * i)
gc.show_text(mi)
def overlay(self, component, gc, *args, **kw):
gc.save_state()
gc.set_font(Font('Monaco'))
x = component.x
y2 = component.y2
gc.set_fill_color((1, 1, 1))
w = 100
h = 110
gc.rect(x + 5, y2 - 5 - h, w, h)
gc.draw_path()
machines = ['jan', 'obama', 'map']
colors = [(1, 0.5, 0), (0, 0, 1), (1, 0, 0)]
xo = x + 5
yo = y2 - 10
texth = 12
for i, (mi, color) in enumerate(zip(machines, colors)):
gc.set_fill_color(color)
yi = yo - (texth) * (i + 1)
gc.set_text_position(xo + 20, yi)
gc.show_text(mi)
# markers = ['circle', 'square', 'diamond', 'triangle']
ats = ['blank', 'air', 'cocktail', 'unknown', 'background']
gc.set_fill_color((0, 0, 0))
for i, si in enumerate(ats):
yy = yi - (texth) * (i + 1)
try:
plot = component.plots['jan {}'.format(si)][0]
except KeyError:
continue
pcolor, plot.color = plot.color, 'black'
mpcolor, plot.outline_color = plot.outline_color, 'black'
plot._render_icon(gc, xo + 5, yy, 5, 5)
plot.color = pcolor
plot.outline_color = mpcolor
gc.set_text_position(xo + 20, yy)
gc.show_text(si)
gc.restore_state()
def from_wx_font(self, font):
""" Gets the application equivalent of a wxPython value.
"""
import kiva.constants as kc
from kiva.fonttools import Font
return Font(
size=font.GetPointSize(),
family={
wx.DEFAULT: kc.DEFAULT,
wx.DECORATIVE: kc.DECORATIVE,
wx.ROMAN: kc.ROMAN,
wx.SCRIPT: kc.SCRIPT,
wx.SWISS: kc.SWISS,
wx.MODERN: kc.MODERN
}.get(font.GetFamily(), kc.SWISS),
weight=(kc.NORMAL, kc.BOLD)[font.GetWeight() == wx.BOLD],
style=(kc.NORMAL, kc.ITALIC)[font.GetStyle() == wx.ITALIC],
underline=font.GetUnderlined() - 0, #convert Bool to an int type
face_name=font.GetFaceName())
def _draw_mainlayer(self, gc, view_bounds=None, mode='default'):
if self.should_profile and self.profile_this is not None:
# Only profile the first draw.
self.should_profile = False
self.profile_this.start('Drawing')
start = now()
gc.clear()
width, height = self.bounds
gc.save_state()
if self.document is None:
# fixme: The Mac backend doesn't accept style/width as non-integers
# in set_font, but does for select_font...
if sys.platform == 'darwin':
gc.select_font("Helvetica", 36)
else:
gc.set_font(Font("Helvetica", 36))
gc.show_text_at_point("Could not parse document.", 20, height - 56)
gc.restore_state()
if self.profile_this is not None:
self.profile_this.stop()
return
try:
# SVG origin is upper right with y positive is down.
# Set up the transforms to fix this up.
# FIXME: if the rendering stage fails, all subsequent renders are vertically flipped
gc.translate_ctm(0, height)
# TODO: bother with zoom?
# TODO: inspect the view bounds and scale to the shape of the
# component?
scale = 1.0
gc.scale_ctm(scale, -scale)
self.document.render(gc)
self.last_render = now() - start
finally:
gc.restore_state()
if self.profile_this is not None:
self.profile_this.stop()
def font_metrics_provider():
from kiva.fonttools import Font
gc = GraphicsContext((1, 1))
gc.set_font(Font())
return gc
def _draw_info(self, plot, gc, lines):
if not self.tool.current_screen:
return
x, y = sx, sy = self.tool.current_screen
size = 14
gc.set_font(Font('Arial', size=size))
gc.set_fill_color((0.8, 0.8, 0.8))
lws, lhs = list(zip(*[gc.get_full_text_extent(mi)[:2]
for mi in lines]))
rect_width = max(lws) + 4
rect_height = (max(lhs) + 2) * len(lhs)
xoffset = 15
yoffset = -15
gc.translate_ctm(xoffset, yoffset)
# if the box doesnt fit in window
# move left
x2 = self.component.x2
y2 = self.component.y2
if x + xoffset + rect_width > x2:
x = x2 - rect_width - xoffset - 1
multi_column = 0
h = max(lhs) + 2
cheight = self.component.height
if rect_height > cheight + 5 * h:
multi_column = 2
else:
# move up if too tall
if y + yoffset - rect_height < self.component.y:
y = y2 - yoffset
# if current point within bounds of box, move box to left
if x < sx:
x = sx - rect_width - xoffset - 6
if multi_column:
gc.translate_ctm(x, self.component.y)
gc.rect(0, -2, multi_column * rect_width, cheight - yoffset)
else:
gc.translate_ctm(x, y - rect_height)
gc.rect(0, -2, rect_width, rect_height + 4)
gc.draw_path()
gc.set_fill_color((0, 0, 0))
if multi_column:
gen = (li for li in lines)
for col in range(multi_column):
i = 0
for mi in gen:
if i == 0 and mi == '--------':
continue
yi = h * i
if yi > cheight:
break
gc.set_text_position(col * rect_width, y2 - yi)
gc.show_text(mi)
i += 1
else:
for i, mi in enumerate(lines[::-1]):
gc.set_text_position(0, h * i)
gc.show_text(mi)
from __future__ import print_function
import time
from kiva.fonttools import Font
from kiva.constants import MODERN
from kiva.agg import AffineMatrix, GraphicsContextArray
gc = GraphicsContextArray((200,200))
font = Font(family=MODERN)
#print font.size
font.size=8
gc.set_font(font)
t1 = time.clock()
# consecutive printing of text.
with gc:
gc.set_antialias(False)
gc.set_fill_color((0,1,0))
gc.translate_ctm(50,50)
gc.rotate_ctm(3.1416/4)
gc.show_text("hello")
gc.translate_ctm(-50,-50)
gc.set_text_matrix(AffineMatrix())
gc.set_fill_color((0,1,1))
gc.show_text("hello")
t2 = time.clock()
print('aliased:', t2 - t1)
"""
Test to see what level of click latency is noticeable.
"""
import time
from traits.api import Float
from enable.api import (Component, Container, ColorTrait, black_color_trait,
Window)
from enable.example_support import DemoFrame, demo_main
from kiva.constants import SWISS
from kiva.fonttools import Font
font = Font(family=SWISS)
class Box(Component):
color = ColorTrait("red")
delay = Float(0.50)
def _draw_mainlayer(self, gc, view=None, mode="default"):
if self.event_state == "clicked":
print("waiting %0.4f seconds... " % self.delay, end=' ')
time.sleep(self.delay)
print("done.")
with gc:
gc.set_fill_color(self.color_)
gc.rect(*(self.position + self.bounds))
gc.fill_path()
def font_metrics_provider():
gc = GraphicsContext((1, 1))
gc.set_font(Font())
return gc
def select_font(self, face_name, size=12, style="regular", encoding=None):
""" Set the font for the current graphics context.
"""
weight, style = font_styles[style.lower()]
self.set_font(Font(face_name, size=size, weight=weight, style=style))
def test_show_text_at_point(self):
gc = GraphicsContextArray((100, 100))
gc.set_font(Font())
gc.show_text_at_point(str('asdf'), 5, 5)
def build_graph(self):
skw = dict(type='scatter', marker_size=3)
# skw = dict(type='bar')
g = self.graph
xs = []
ys = []
ats = ['blank', 'air', 'cocktail', 'unknown', 'background']
# ats += ['blank_air', 'blank_cocktail', 'blank_unknown']
machines = ['jan', 'obama', 'map']
rids = []
def test(ri, at, mach):
if at == 'blank':
attest = ri.analysis_type.startswith('blank')
else:
attest = ri.analysis_type == at
if attest:
return ri.mass_spectrometer == mach
for mach in machines:
for i, at in enumerate(ats):
dd = [(ri.shortname, ri.timestamp)
for ri in self.table.records
if test(ri, at, mach)
]
if dd:
ni, xi = zip(*dd)
else:
xi = []
ni = []
xi = np.array(xi)
n = len(xi)
xs.append(xi)
ys.append(np.array(range(n)) + 1 + 3 * i)
rids.append(ni)
mm = [min(xj) for xj in xs if len(xj)]
if not mm:
return
xmi = min(mm)
mm = [max(yj) for yj in ys if len(yj)]
yma = max(mm)
xs = np.array([xk - xmi for xk in xs])
ys = np.array(ys)
mm = [max(xj) for xj in xs if len(xj)]
xma = max(mm)
colors = ['orange', 'blue', 'green']
markers = ['circle', 'square', 'diamond', 'triangle', 'cross']
def ffunc(s):
def func(new):
if new:
self._update_graph(s, xmi)
return func
def fffunc(s):
def func(new):
if new:
self._update(s, xmi)
return func
for i, (name, color) in enumerate(zip(machines, colors)):
xxj = xs[i * 5:i * 5 + 5]
yyj = ys[i * 5:i * 5 + 5]
nnj = rids[i * 5:i * 5 + 5]
for at, xx, yy, nn, marker in zip(ats, xxj, yyj, nnj, markers):
s, _ = g.new_series(xx, yy, marker=marker, color=color, **skw)
g.set_series_label('{} {}'.format(name, at))
# self.add_trait('scatter_{}_{}'.format(at, name), s)
tool = ScatterInspector(s, selection_mode='single')
s.tools.append(tool)
s.index.on_trait_change(ffunc(s), 'metadata_changed')
for xi, yi, ni in zip(xx, yy, nn):
dl = DataLabel(component=s,
font=Font('Monaco'),
data_point=(xi, yi),
label_position='top left',
bgcolor='white',
# label_format='%s',
label_text=ni,
show_label_coords=False,
arrow_visible=False,
marker_visible=False
)
s.overlays.append(dl)
self.data_labels.append(dl)
# add range selection tool
# s.active_tool = RangeSelection(s, left_button_selects=True)
# s.overlays.append(RangeSelectionOverlay(component=s))
# s.index.on_trait_change(getattr(self, '_update_{}'.format(at)), 'metadata_changed')
g.set_x_limits(min_=0, max_=xma, pad='0.1')
g.set_y_limits(min_=0, max_=yma * 1.1)