def apply(self, prop, value):
if self._applicator:
if prop == 'text_align':
if value is None:
if self.text_direction is RTL:
value = RIGHT
else:
value = LEFT
self._applicator.set_text_alignment(value)
elif prop == 'color':
self._applicator.set_color(value)
elif prop == 'background_color':
self._applicator.set_background_color(value)
elif prop == 'visibility':
hidden = False
if value == HIDDEN:
hidden = True
self._applicator.set_hidden(hidden)
elif prop in ('font_family', 'font_size', 'font_style', 'font_variant', 'font_weight'):
self._applicator.set_font(
Font(
self.font_family,
self.font_size,
style=self.font_style,
variant=self.font_variant,
weight=self.font_weight
)
)
def test_set_font(self):
root = TestNode('app',
style=Pack(font_family='Roboto',
font_size=12,
font_style='normal',
font_variant='small-caps',
font_weight='bold'))
root.style.reapply()
root._impl.set_font.assert_called_with(
Font('Roboto', 12, 'normal', 'small-caps', 'bold'))
def get_font(self, prop):
if prop.get_family()[0] == SANS_SERIF:
font_family = SANS_SERIF
elif prop.get_family()[0] == CURSIVE:
font_family = CURSIVE
elif prop.get_family()[0] == FANTASY:
font_family = FANTASY
elif prop.get_family()[0] == MONOSPACE:
font_family = MONOSPACE
else:
font_family = SERIF
size = int(prop.get_size_in_points())
return Font(family=font_family, size=size)
def _construct_alert(
title,
message,
details=None,
details_title="Traceback",
button_labels=("Ok", ),
checkbox_text=None,
level="info",
icon=None,
):
a = NSAlert.alloc().init()
a.alertStyle = alert_style_for_level_str[level]
a.messageText = title
a.informativeText = message
a.icon = icon
if details:
scroll = NSScrollView.alloc().initWithFrame(NSMakeRect(0, 0, 500, 250))
scroll.hasVerticalScroller = True
scroll.hasHorizontalScroller = False
scroll.autohidesScrollers = False
scroll.borderType = NSBezelBorder
trace = NSTextView.alloc().init()
trace.editable = False
trace.verticallyResizable = True
trace.horizontallyResizable = True
trace.insetText(details)
scroll.documentView = trace
title = NSTextField.labelWithString(details_title)
title.font = Font(SYSTEM, 12, weight=BOLD).bind(factory).native
stack = NSStackView.alloc().initWithFrame(NSMakeRect(0, 0, 500, 265))
stack.orientation = NSUserInterfaceLayoutOrientationVertical
stack.alignment = NSLayoutAttributeLeading
stack.addView(title, inGravity=NSStackViewGravityBottom)
stack.addView(scroll, inGravity=NSStackViewGravityBottom)
a.accessoryView = stack
if checkbox_text:
a.showsSuppressionButton = True
a.suppressionButton.title = checkbox_text
for name in button_labels:
a.addButtonWithTitle(name)
return a
def get_text_width_height_descent(self, s, prop, ismath):
"""
get the width and height in display coords of the string s
with FontPropertry prop
"""
if (prop.get_family()[0] == SANS_SERIF):
font_family = SANS_SERIF
elif (prop.get_family()[0] == CURSIVE):
font_family = CURSIVE
elif (prop.get_family()[0] == FANTASY):
font_family = FANTASY
elif (prop.get_family()[0] == MONOSPACE):
font_family = MONOSPACE
else:
font_family = SERIF
font = Font(family=font_family, size=int(prop.get_size()))
w, h = font.measure(s)
return w, h, 1
def write_text(self, text, x=0, y=0, font=None):
"""Constructs and returns a :class:`WriteText <WriteText>`.
Writes a given text at the given (x,y) position. If no font is provided,
then it will use the font assigned to the Canvas Widget, if it exists,
or use the default font if there is no font assigned.
Args:
text (string): The text to fill.
x (float, optional): The x coordinate of the text. Default to 0.
y (float, optional): The y coordinate of the text. Default to 0.
font (:class:`toga.Font`, optional): The font to write with.
Returns:
:class:`WriteText <WriteText>` object.
"""
if font is None:
font = Font(family=SYSTEM, size=self._canvas.style.font_size)
write_text = WriteText(text, x, y, font)
return self.add_draw_obj(write_text)