def isStrandInSet(self, strand: StrandT) -> bool:
sl = self.strand_array
if sl[strand.lowIdx()] == strand and sl[strand.highIdx()] == strand:
return True
else:
return False
def _updateAppearance(self, strand: StrandT):
"""Prepare Strand for drawing, positions are relative to the
:class:`PathVirtualHelixItem`:
1. Show or hide caps depending on L and R connectivity.
2. Determine line coordinates.
3. Apply paint styles.
"""
# 0. Setup
vhi = self._virtual_helix_item
bw = _BASE_WIDTH
half_base_width = bw / 2.0
low_idx, high_idx = strand.lowIdx(), strand.highIdx()
l_upper_left_x, l_upper_left_y = vhi.upperLeftCornerOfBase(
low_idx, strand)
h_upper_left_x, h_upper_left_y = vhi.upperLeftCornerOfBase(
high_idx, strand)
low_cap = self._low_cap
high_cap = self._high_cap
dual_cap = self._dual_cap
# 1. Cap visibilty
lx = l_upper_left_x + bw # draw from right edge of base
low_cap.safeSetPos(l_upper_left_x, l_upper_left_y)
if strand.connectionLow() is not None: # has low xover
# if we are hiding it, we might as well make sure it is reparented to the StrandItem
low_cap.restoreParent()
low_cap.hide()
else: # has low cap
if not low_cap.isVisible():
low_cap.show()
hx = h_upper_left_x # draw to edge of base
high_cap.safeSetPos(h_upper_left_x, h_upper_left_y)
if strand.connectionHigh() is not None: # has high xover
# if we are hiding it, we might as well make sure it is reparented to the StrandItem
high_cap.restoreParent()
high_cap.hide()
else: # has high cap
if not high_cap.isVisible():
high_cap.show()
# special case: single-base strand with no L or H connections,
# (unconnected caps were made visible in previous block of code)
if strand.length() == 1 and (low_cap.isVisible()
and high_cap.isVisible()):
low_cap.hide()
high_cap.hide()
dual_cap.safeSetPos(l_upper_left_x, l_upper_left_y)
dual_cap.show()
else:
dual_cap.hide()
# 2. Xover drawing
xo = self.xover_3p_end
if strand.connection3p():
xo.update(strand)
xo.showIt()
else:
xo.restoreParent()
xo.hideIt()
# 3. Refresh insertionItems if necessary drawing
self.refreshInsertionItems(strand)
# 4. Line drawing
hy = ly = l_upper_left_y + half_base_width
self.setLine(lx, ly, hx, hy)
rectf = QRectF(l_upper_left_x + bw, l_upper_left_y,
bw * (high_idx - low_idx - 1), bw)
self._click_area.setRect(rectf)
self._updateColor(strand)
def _updateAppearance(self, strand: StrandT):
"""Prepare Strand for drawing, positions are relative to the
:class:`PathVirtualHelixItem`:
1. Show or hide caps depending on L and R connectivity.
2. Determine line coordinates.
3. Apply paint styles.
"""
# 0. Setup
vhi = self._virtual_helix_item
bw = _BASE_WIDTH
half_base_width = bw / 2.0
low_idx, high_idx = strand.lowIdx(), strand.highIdx()
l_upper_left_x, l_upper_left_y = vhi.upperLeftCornerOfBase(low_idx, strand)
h_upper_left_x, h_upper_left_y = vhi.upperLeftCornerOfBase(high_idx, strand)
low_cap = self._low_cap
high_cap = self._high_cap
dual_cap = self._dual_cap
# 1. Cap visibilty
lx = l_upper_left_x + bw # draw from right edge of base
low_cap.safeSetPos(l_upper_left_x, l_upper_left_y)
if strand.connectionLow() is not None: # has low xover
# if we are hiding it, we might as well make sure it is reparented to the StrandItem
low_cap.restoreParent()
low_cap.hide()
else: # has low cap
if not low_cap.isVisible():
low_cap.show()
hx = h_upper_left_x # draw to edge of base
high_cap.safeSetPos(h_upper_left_x, h_upper_left_y)
if strand.connectionHigh() is not None: # has high xover
# if we are hiding it, we might as well make sure it is reparented to the StrandItem
high_cap.restoreParent()
high_cap.hide()
else: # has high cap
if not high_cap.isVisible():
high_cap.show()
# special case: single-base strand with no L or H connections,
# (unconnected caps were made visible in previous block of code)
if strand.length() == 1 and (low_cap.isVisible() and high_cap.isVisible()):
low_cap.hide()
high_cap.hide()
dual_cap.safeSetPos(l_upper_left_x, l_upper_left_y)
dual_cap.show()
else:
dual_cap.hide()
# 2. Xover drawing
xo = self.xover_3p_end
if strand.connection3p():
xo.update(strand)
xo.showIt()
else:
xo.restoreParent()
xo.hideIt()
# 3. Refresh insertionItems if necessary drawing
self.refreshInsertionItems(strand)
# 4. Line drawing
hy = ly = l_upper_left_y + half_base_width
self.setLine(lx, ly, hx, hy)
rectf = QRectF(l_upper_left_x + bw, l_upper_left_y, bw*(high_idx - low_idx - 1), bw)
self._click_area.setRect(rectf)
self._updateColor(strand)
def isStrandInSet(self, strand: StrandT) -> bool:
sl = self.strand_array
if sl[strand.lowIdx()] == strand and sl[strand.highIdx()] == strand:
return True
else:
return False