def test_region_cmp_hash():
region = cairo.Region()
other = cairo.Region()
differ = cairo.Region(cairo.RectangleInt(0, 0, 10, 10))
with pytest.raises(TypeError):
hash(region)
assert region == region
assert region == other
assert not region != other
assert region != differ
with pytest.raises(TypeError):
region < region
with pytest.raises(TypeError):
region > region
rect = cairo.RectangleInt(1, 2, 10, 13)
same = cairo.RectangleInt(1, 2, 10, 13)
other = cairo.RectangleInt(2, 2, 10, 13)
with pytest.raises(TypeError):
hash(rect)
assert rect == same
assert rect != other
with pytest.raises(TypeError):
rect < same
with pytest.raises(TypeError):
rect > same
def rectangle_stroke_region(rect: Optional[Rect2[float]],
width: float) -> cairo.Region:
if rect is None:
return cairo.Region()
left_side = cairo.RectangleInt(
int(math.floor(rect.x0 - width - 1)),
int(math.floor(rect.y0 - width - 1)),
int(math.ceil(2 * width + 2)),
int(math.ceil(rect.h + 2 * width + 2)),
)
right_side = cairo.RectangleInt(
int(math.floor(rect.x1 - width - 1)),
int(math.floor(rect.y0 - width - 1)),
int(math.ceil(2 * width + 2)),
int(math.ceil(rect.h + 2 * width + 2)),
)
top_side = cairo.RectangleInt(
int(math.floor(rect.x0 - width - 1)),
int(math.floor(rect.y0 - width - 1)),
int(math.ceil(rect.w + 2 * width + 2)),
int(math.ceil(2 * width + 2)),
)
bottom_side = cairo.RectangleInt(
int(math.floor(rect.x0 - width - 1)),
int(math.floor(rect.y1 - width - 1)),
int(math.ceil(rect.w + 2 * width + 2)),
int(math.ceil(2 * width + 2)),
)
return cairo.Region([left_side, right_side, top_side, bottom_side])
def draw(self):
self.painted = True
if self.rgba_support or self.width < 4 or self.height < 4:
return
outer = cairo.Region(cairo.RectangleInt(0, 0, self.width, self.height))
inner = cairo.Region(
cairo.RectangleInt(2, 2, self.width - 4, self.height - 4))
outer.subtract(inner)
self.shape_combine_region(outer)
def region(self):
# TODO
x1 = int(self.left())
x2 = int(self.right())
y1 = int(self.top())
y2 = int(self.bottom())
w = int(self.w)
h = int(self.h)
r = cairo.Region(cairo.RectangleInt(x=x1, y=y1, width=1, height=h))
r.union(cairo.RectangleInt(x=x1, y=y1, width=w, height=1))
r.union(cairo.RectangleInt(x=x2, y=y1, width=1, height=h))
r.union(cairo.RectangleInt(x=x1, y=y2, width=w, height=1))
return r
def draw_rectangle(self, event_x, event_y): w_context = cairo.Context(self.get_surface()) w_context.set_source_rgba(0.5, 0.5, 0.5, 0.5) w_context.set_dash([3, 3]) w_context.append_path(self.get_image().selection_path) press_x, press_y = w_context.get_current_point() x0 = int( min(press_x, event_x) ) y0 = int( min(press_y, event_y) ) x1 = int( max(press_x, event_x) ) y1 = int( max(press_y, event_y) ) w = x1 - x0 h = y1 - y0 if w <= 0 or h <= 0: self.get_image().selection_path = None return self.get_image().selection_x = x0 self.get_image().selection_y = y0 temp_surface = Gdk.cairo_surface_create_from_pixbuf(self.get_main_pixbuf(), 0, None) temp_surface = temp_surface.map_to_image(cairo.RectangleInt(x0, y0, w, h)) self.get_image().set_selection_pixbuf( Gdk.pixbuf_get_from_surface(temp_surface, \ 0, 0, temp_surface.get_width(), temp_surface.get_height()) ) w_context.new_path() w_context.move_to(x0, y0) w_context.line_to(x1, y0) w_context.line_to(x1, y1) w_context.line_to(x0, y1) w_context.close_path() self.get_image().selection_path = w_context.copy_path() self.temp_path = w_context.copy_path() self.set_temp()
def _artist_invalidated(self, artist: Artist,
region: Optional[cairo.Region]) -> None:
if region is None:
self.invalidate()
return
if self._last_draw_transform is None:
self.invalidate()
return
xx, xy, yx, yy, x0, y0 = self._last_draw_transform
if yx or xy:
# XXX: Calculating invalidated region for skew/rotations not implemented.
self.invalidate()
return
region = cairo.Region([
cairo.RectangleInt(
math.floor(x0 + xx * rect.x),
math.floor(y0 + yy * rect.y),
math.ceil(xx * rect.width),
math.ceil(yy * rect.height),
) for rect in map(region.get_rectangle,
range(region.num_rectangles()))
])
self.invalidate(region)
def test_region_contains_rectangle():
rect = cairo.RectangleInt(1, 2, 10, 13)
region = cairo.Region()
assert region.contains_rectangle(rect) == cairo.RegionOverlap.OUT
assert isinstance(region.contains_rectangle(rect), cairo.RegionOverlap)
with pytest.raises(TypeError):
region.contains_rectangle(object())
def test_contains_point():
rect = cairo.RectangleInt(0, 0, 10, 10)
r = cairo.Region(rect)
assert r.contains_point(0, 0)
assert not r.contains_point(0, 20)
with pytest.raises(TypeError):
r.contains_point(0, object())
def cut_pointer(self, region, x, y):
d = self.click_box_width
region.subtract(
cairo.RectangleInt(x=int(x - d),
y=int(y - d),
width=1 + 2 * d,
height=1 + 2 * d))
def test_subtract():
rect = cairo.RectangleInt(0, 0, 10, 10)
r = cairo.Region(rect)
r.subtract(r)
with pytest.raises(TypeError):
r.subtract(object())
with pytest.raises(TypeError):
r.subtract()
def test_equal():
rect = cairo.RectangleInt(0, 0, 10, 10)
r = cairo.Region(rect)
assert r.equal(r)
with pytest.raises(TypeError):
r.equal(object())
with pytest.raises(TypeError):
r.equal()
def test_xor():
rect = cairo.RectangleInt(0, 0, 10, 10)
r = cairo.Region(rect)
r.xor(r)
r.xor(rect)
with pytest.raises(TypeError):
r.xor(object())
with pytest.raises(TypeError):
r.xor()
def region(self):
w = int(abs(self.x2 - self.x1))
h = int(abs(self.y2 - self.y1))
w = max(w, 1)
h = max(h, 1)
return cairo.RectangleInt(x=int(self.x1),
y=int(self.y1),
width=w,
height=h)
def test_get_rectangle():
rect = cairo.RectangleInt(0, 0, 10, 10)
r = cairo.Region(rect)
with pytest.raises(ValueError):
r.get_rectangle(-1)
with pytest.raises(ValueError):
r.get_rectangle(1)
assert r.get_rectangle(0) == rect
with pytest.raises(TypeError):
r.get_rectangle(object())
def region(self):
w, h = self.size()
pad = self.padding
w += 2 * pad
h += 2 * pad
left, top = self._pos()
return cairo.RectangleInt(x=left - pad,
y=top - pad,
width=w + pad,
height=h + pad)
def test_rect_int(x, y, width, height):
try:
r = cairo.RectangleInt(x, y, width, height)
except OverflowError:
pass
else:
assert r.x == x
assert r.y == y
assert r.width == width
assert r.height == height
def test_intersect():
rect = cairo.RectangleInt(0, 0, 10, 10)
r = cairo.Region(rect)
r.intersect(r)
r.intersect(rect)
with pytest.raises(TypeError):
r.intersect(object())
with pytest.raises(TypeError):
r.intersect()
assert r.__eq__(object()) == NotImplemented
assert rect.__eq__(object()) == NotImplemented
def on_configure(self, *_):
window_x, window_y = self.get_position()
window_width, window_height = self.get_size()
# set event mask for click-through
self.input_shape_combine_region(
cairo.Region(cairo.RectangleInt(0, 0, 0, 0)))
# set some proportional inner padding
self.label.set_padding(window_width // 100, 0)
self.update_font()
def circle_region(x: float, y: float, radius: float):
radius = math.fabs(radius)
if radius == 0.0:
return cairo.Region()
return cairo.Region(
cairo.RectangleInt(
x=int(math.floor(x - radius)),
y=int(math.floor(y - radius)),
width=int(math.ceil(2 * radius)),
height=int(math.ceil(2 * radius)),
))
def get_mask(self):
w, h = self.get_size()
region = cairo.Region(cairo.RectangleInt(width=0, height=0))
for i in list(self.ui.actions.keys()):
r = i.region()
if r:
region.union(r)
else:
logger.warning("warning: no region for " + str(i))
p = self.root.get_pointer()
self.cut_pointer(region, p.x, p.y)
return region
def extents(self, extents: Optional[Rect2[float]]) -> None:
self._extents = extents
inv_region = self._last_drawn_region
if extents:
to_draw = cairo.Region(
cairo.RectangleInt(int(extents.x - 1), int(extents.y - 1),
int(extents.w + 2), int(extents.h + 2)))
if inv_region is not None:
inv_region.union(to_draw)
else:
inv_region = to_draw
if inv_region is not None:
self.invalidate(inv_region)
def cairo_region_create_from_surface(surface, mask_accuracy):
rect = cairo.RectangleInt()
extents = _cairo_surface_extents(surface)
if extents != False:
if surface.get_content() == cairo.CONTENT_COLOR:
return cairo.Region(extents)
if type(
surface
) != cairo.ImageSurface or surface.get_format != cairo.FORMAT_A1:
image = cairo.ImageSurface(cairo.FORMAT_A1, extents.width,
extents.height)
cr = cairo.Context(image)
cr.set_source_surface(surface, -extents.x, -extents.y)
cr.paint()
else:
image = surface
image.flush()
data = image.get_data()
stride = image.get_stride()
region = cairo.Region()
for y in range(0, extents.height, mask_accuracy):
for x in range(0, extents.width, mask_accuracy):
x0 = x
while x < extents.width:
if sys.byteorder == 'little':
if ((data[y * stride + x // 8] >> (x % 8)) & 1) == 0:
break
if sys.byteorder == 'big':
if ((data[y * stride + x // 8] >>
(7 - (x % 8))) & 1) == 0:
break
x += mask_accuracy
if x > x0:
rect.x = x0
rect.width = x - x0
rect.y = y
rect.height = mask_accuracy
region.union(rect)
region.translate(extents.x, extents.y)
return region
def _calculate_lens_rect(self, x: int, y: int, width: int, height: int):
"""
Calculates the area where the lens will be drawn on screen. This method takes
screen space into calculation and moves the rectangle accordingly when the the rectangle
would otherwise flow over the allocated area
"""
lens_x = max(x - width // 2, 0)
lens_y = max(y - height // 2, 0)
max_width, max_height = self.__window.get_visible_area_size()
max_width += int(self.__window.get_hadjust().get_value())
max_height += int(self.__window.get_vadjust().get_value())
lens_x = min(lens_x, max_width - width)
lens_y = min(lens_y, max_height - height)
# Don't forget 1 pixel border...
return cairo.RectangleInt(lens_x, lens_y, width + 2, height + 2)
def _cairo_surface_extents(surface):
if surface == None:
return False
cr = cairo.Context(surface)
x1, y1, x2, y2 = cr.clip_extents()
x1 = floor(x1)
y1 = floor(y1)
x2 = ceil(x2)
y2 = ceil(y2)
x2 -= x1
y2 -= y1
extents = cairo.RectangleInt()
extents.x = x1
extents.y = y1
extents.width = x2
extents.height = y2
return extents
def draw(self, cr: cairo.Context) -> None:
polyline = self._polyline
stroke_width = self._stroke_width
stroke_color = self._stroke_color
if polyline is None or len(polyline) == 0:
self._last_drawn_region = None
return
if self._path_cache is not None:
cr.append_path(self._path_cache)
else:
self._show_polyline(cr, polyline)
self._path_cache = cr.copy_path()
extents = Rect2(cr.path_extents())
dx = 1 / cr.get_matrix().xx
dy = 1 / cr.get_matrix().yy
cr.save()
if self._scale_strokes:
stroke_scale = max(dx, dy)
cr.identity_matrix()
else:
stroke_scale = 1.0
cr.set_line_width(stroke_width)
cr.set_source_rgba(*stroke_color)
cr.stroke()
cr.restore()
extents = expand_rect(extents, max(stroke_width * stroke_scale, dx,
dy))
self._last_drawn_region = cairo.Region(
cairo.RectangleInt(
int(math.floor(extents.x)),
int(math.floor(extents.y)),
int(math.ceil(extents.w)),
int(math.ceil(extents.h)),
))
def cb_draw(self, widget, cr):
cr.set_source_rgba(0.0, 0.0, 0.0, 0.0)
cr.set_operator(cairo.OPERATOR_SOURCE)
cr.paint()
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, self.w, self.h)
surface_ctx = cairo.Context(surface)
surface_ctx.set_source_rgba(1.0, 1.0, 1.0, 0.0)
surface_ctx.set_operator(cairo.OPERATOR_SOURCE)
surface_ctx.paint()
rect = cairo.RectangleInt(0, 0, 1, 1)
reg = cairo.Region(rect)
if (not reg.is_empty()):
widget.input_shape_combine_region(None)
widget.input_shape_combine_region(reg)
cr.move_to(0, 0)
cr.set_source_rgba(1.0, 0.0, 0.0, 0.8)
cr.set_line_width(2.0)
#
# Seriously?
# The thing is, windows cannot overlap Panel or Launcher.
# Ugly code taking care of this overlapping is below.
#
if self.y > self.panel_height - 1:
cr.line_to(self.w, 0)
else:
cr.move_to(self.w, 0)
if self.x + self.w < HW.screens[self.screen.get_number()]['width']:
cr.line_to(self.w, self.h)
else:
cr.move_to(self.w, self.h)
if self.y + self.h < HW.screens[self.screen.get_number()]['height']:
cr.line_to(0, self.h)
else:
cr.move_to(0, self.h)
if self.x > self.launcher_width:
cr.line_to(0, 0)
cr.stroke()
cr.set_operator(cairo.OPERATOR_OVER)
def draw_rectangle(self, event_x, event_y):
"""Define the selection pixbuf and draw an overlay for a rectangle
selection beginning where the "press" event was made and ending where
the "release" event is made (its coordinates are parameters). This
method is specific to the "rectangle selection" mode."""
if self.selection_path is None:
return
cairo_context = cairo.Context(self.get_surface())
cairo_context.set_source_rgba(0.5, 0.5, 0.5, 0.5)
cairo_context.set_dash([3, 3])
cairo_context.append_path(self.selection_path)
press_x, press_y = cairo_context.get_current_point()
x0 = int(min(press_x, event_x))
y0 = int(min(press_y, event_y))
x1 = int(max(press_x, event_x))
y1 = int(max(press_y, event_y))
w = x1 - x0
h = y1 - y0
if w <= 0 or h <= 0:
self.selection_path = None
return
self.selection_x = x0
self.selection_y = y0
temp_surface = Gdk.cairo_surface_create_from_pixbuf(
self.get_main_pixbuf(), 0, None)
temp_surface = temp_surface.map_to_image(
cairo.RectangleInt(x0, y0, w, h))
self.set_selection_pixbuf( Gdk.pixbuf_get_from_surface(temp_surface, \
0, 0, temp_surface.get_width(), temp_surface.get_height()) )
cairo_context.new_path()
cairo_context.move_to(x0, y0)
cairo_context.line_to(x1, y0)
cairo_context.line_to(x1, y1)
cairo_context.line_to(x0, y1)
cairo_context.close_path()
self.selection_path = cairo_context.copy_path()
self.temp_path = cairo_context.copy_path()
self.set_temp()
def test_surface_map_to_image_data():
main = cairo.ImageSurface(cairo.Format.RGB24, 2, 1)
main.flush()
assert bytes(main.get_data()) == b"\x00\x00\x00\x00\x00\x00\x00\x00"
image = main.map_to_image(None)
ctx = cairo.Context(image)
ctx.set_source_rgb(1, 1, 1)
ctx.paint()
main.unmap_image(image)
main.flush()
assert bytes(main.get_data()) == b"\xff\xff\xff\xff\xff\xff\xff\xff"
main = cairo.ImageSurface(cairo.Format.RGB24, 2, 1)
image = main.map_to_image(cairo.RectangleInt(0, 0, 1, 1))
ctx = cairo.Context(image)
ctx.set_source_rgb(1, 1, 1)
ctx.paint()
main.unmap_image(image)
main.flush()
assert bytes(main.get_data()) == b"\xff\xff\xff\xff\x00\x00\x00\x00"
def draw(self, cr: cairo.Context) -> None:
if self._extents is None or self._surface is None:
return
extents = self._extents
surface = self._surface
matrix = cairo.Matrix()
matrix.scale(surface.get_width() / extents.w,
surface.get_height() / extents.h)
matrix.translate(-extents.x, -extents.y)
pattern = cairo.SurfacePattern(surface)
pattern.set_filter(cairo.Filter.FAST)
pattern.set_matrix(matrix)
cr.set_source(pattern)
cr.paint()
self._last_drawn_region = cairo.Region(
cairo.RectangleInt(int(extents.x - 1), int(extents.y - 1),
int(extents.w + 2), int(extents.h + 2)))
def _do_draw(self, _, cr: cairo.Context):
height = self.get_allocated_height()
timeline_canvas = self.timeline_canvas
# Show a guiding line under the mouse
if self.current_moused_datetime is not None:
timeline_x = timeline_canvas.timeline_helper.datetime_to_pixel(
self.current_moused_datetime)
cr.set_source_rgb(0.55, 0.55, 0.55)
cr.new_path()
cr.move_to(timeline_x, 0)
cr.line_to(timeline_x, height)
cr.stroke()
current_guidingline_rectangle = cairo.RectangleInt(
int(timeline_x) - 2, 0, 4, height)
self.dirty_rectangles.append(current_guidingline_rectangle)
# Highlight the hovered over entry
moused_entry = None if self.moused_over_entity is None else self.moused_over_entity.entry
if type(moused_entry) is LoggedEntry:
le = self.moused_over_entity
cr.set_source_rgba(0.7, 0.7, 0.7, 0.2)
cr.rectangle(le.start_x, timeline_canvas.le_start_y, le.width,
timeline_canvas.timeline_height)
cr.fill()
elif type(moused_entry) is TaggedEntry:
te = self.moused_over_entity
cr.set_source_rgba(0.7, 0.7, 0.7, 0.2)
cr.rectangle(te.start_x, timeline_canvas.te_start_y, te.width,
timeline_canvas.timeline_height)
cr.fill()
# Show the tooltip
if self.tooltip_attributes is not None:
self._show_details_tooltip(self.tooltip_attributes, cr)
return True