Ejemplo n.º 1
0
    def resizeSelection(self, delta, use_undostack=True):
        """
        Moves the selected idxs by delta by first iterating over all strands
        to calculate new idxs (method will return if snap-to behavior would
        create illegal state), then applying a resize command to each strand.
        """
        resize_list = []

        # calculate new idxs
        for strandset_dict in self._selection_dict.values():
            for strand, selected in strandset_dict.items():
                part = strand.virtualHelix().part()
                idxL, idxH = strand.idxs()
                newL, newH = strand.idxs()
                deltaL = deltaH = delta

                # process xovers to get revised delta
                if selected[0] and strand.connectionLow():
                    newL = part.xoverSnapTo(strand, idxL, delta)
                    if newL == None:
                        return
                    deltaH = newL-idxL
                if selected[1] and strand.connectionHigh():
                    newH = part.xoverSnapTo(strand, idxH, delta)
                    if newH == None:
                        return
                    deltaL = newH-idxH

                # process endpoints
                if selected[0] and not strand.connectionLow():
                    newL = idxL + deltaL
                if selected[1] and not strand.connectionHigh():
                    newH = idxH + deltaH

                if newL > newH:  # check for illegal state
                    return

                resize_list.append((strand, newL, newH))
            # end for
        # end for

        # execute the resize commands
        if use_undostack:
            self.undoStack().beginMacro("Resize Selection")

        for strand, idxL, idxH in resize_list:
            Strand.resize(strand, (idxL, idxH), use_undostack)

        if use_undostack:
            self.undoStack().endMacro()
Ejemplo n.º 2
0
    def resizeSelection(self, delta, use_undostack=True):
        """
        Moves the selected idxs by delta by first iterating over all strands
        to calculate new idxs (method will return if snap-to behavior would
        create illegal state), then applying a resize command to each strand.
        """
        resize_list = []

        # calculate new idxs
        for strandset_dict in self._selection_dict.values():
            for strand, selected in strandset_dict.items():
                part = strand.virtualHelix().part()
                idxL, idxH = strand.idxs()
                newL, newH = strand.idxs()
                deltaL = deltaH = delta

                # process xovers to get revised delta
                if selected[0] and strand.connectionLow():
                    newL = part.xoverSnapTo(strand, idxL, delta)
                    if newL == None:
                        return
                    deltaH = newL - idxL
                if selected[1] and strand.connectionHigh():
                    newH = part.xoverSnapTo(strand, idxH, delta)
                    if newH == None:
                        return
                    deltaL = newH - idxH

                # process endpoints
                if selected[0] and not strand.connectionLow():
                    newL = idxL + deltaL
                if selected[1] and not strand.connectionHigh():
                    newH = idxH + deltaH

                if newL > newH:  # check for illegal state
                    return

                resize_list.append((strand, newL, newH))
            # end for
        # end for

        # execute the resize commands
        if use_undostack:
            self.undoStack().beginMacro("Resize Selection")

        for strand, idxL, idxH in resize_list:
            Strand.resize(strand, (idxL, idxH), use_undostack)

        if use_undostack:
            self.undoStack().endMacro()
Ejemplo n.º 3
0
    def resizeSelection(self, delta: int, use_undostack: bool = True):
        """Moves the selected idxs by delta by first iterating over all strands
        to calculate new idxs (method will return if snap-to behavior would
        create illegal state), then applying a resize command to each strand.

        Args:
            delta:
            use_undostack: optional, default is ``True``
        """
        resize_list = []
        vh_set = set()
        # calculate new idxs
        part = None
        for strandset_dict in self._selection_dict.values():
            for strand, selected in strandset_dict.items():
                if part is None:
                    part = strand.part()
                idx_low, idx_high = strand.idxs()
                new_low, new_high = strand.idxs()
                delta_low = delta_high = delta

                # process xovers to get revised delta
                if selected[0] and strand.connectionLow():
                    new_low = part.xoverSnapTo(strand, idx_low, delta)
                    if new_low is None:
                        return
                    delta_high = new_low - idx_low
                if selected[1] and strand.connectionHigh():
                    new_high = part.xoverSnapTo(strand, idx_high, delta)
                    if new_high is None:
                        return
                    delta_low = new_high - idx_high

                # process endpoints
                if selected[0] and not strand.connectionLow():
                    new_low = idx_low + delta_low
                if selected[1] and not strand.connectionHigh():
                    new_high = idx_high + delta_high

                if new_low > new_high:  # check for illegal state
                    return

                vh_set.add(strand.idNum())
                resize_list.append((strand, new_low, new_high))
            # end for
        # end for

        # execute the resize commands
        us = self.undoStack()
        if use_undostack:
            us.beginMacro("Resize Selection")

        for strand, idx_low, idx_high in resize_list:
            Strand.resize(strand, (idx_low, idx_high),
                          use_undostack,
                          update_segments=False)
        if resize_list:
            cmd = RefreshSegmentsCommand(part, vh_set)
            if use_undostack:
                us.push(cmd)
            else:
                cmd.redo()

        if use_undostack:
            us.endMacro()
Ejemplo n.º 4
0
    def resizeSelection(self, delta, use_undostack=True):
        """ Moves the selected idxs by delta by first iterating over all strands
        to calculate new idxs (method will return if snap-to behavior would
        create illegal state), then applying a resize command to each strand.

        Args:
            delta (float):
            use_undostack (bool): optional, default is True
        """
        resize_list = []
        vh_set = set()
        # calculate new idxs
        part = None
        for strandset_dict in self._selection_dict.values():
            for strand, selected in strandset_dict.items():
                if part is None:
                    part = strand.part()
                idx_low, idx_high = strand.idxs()
                new_low, new_high = strand.idxs()
                delta_low = delta_high = delta

                # process xovers to get revised delta
                if selected[0] and strand.connectionLow():
                    new_low = part.xoverSnapTo(strand, idx_low, delta)
                    if new_low is None:
                        return
                    delta_high = new_low - idx_low
                if selected[1] and strand.connectionHigh():
                    new_high = part.xoverSnapTo(strand, idx_high, delta)
                    if new_high is None:
                        return
                    delta_low = new_high - idx_high

                # process endpoints
                if selected[0] and not strand.connectionLow():
                    new_low = idx_low + delta_low
                if selected[1] and not strand.connectionHigh():
                    new_high = idx_high + delta_high

                if new_low > new_high:  # check for illegal state
                    return

                vh_set.add(strand.idNum())
                resize_list.append((strand, new_low, new_high))
            # end for
        # end for

        # execute the resize commands
        us = self.undoStack()
        if use_undostack:
            us.beginMacro("Resize Selection")

        for strand, idx_low, idx_high in resize_list:
            Strand.resize(strand,
                          (idx_low, idx_high),
                          use_undostack,
                          update_segments=False)
        if resize_list:
            cmd = RefreshSegmentsCommand(part, vh_set)
            if use_undostack:
                us.push(cmd)
            else:
                cmd.redo()

        if use_undostack:
            us.endMacro()