133 lines
4.5 KiB
Python
133 lines
4.5 KiB
Python
from .operation import *
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def get_label_schema(name: str) -> dict[str, dict[str, Any]]:
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return { 'x' : {'type': 'float' , 'optional': False , 'readonly': False},
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'y' : {'type': 'float' , 'optional': False , 'readonly': False},
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'label' : {'type': 'str' , 'optional': False , 'readonly': False},
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'node' : {'type': 'str' , 'optional': True , 'readonly': False} }
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def get_label(name: str, x: float, y: float) -> dict[str, Any]:
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d = {}
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d['x'] = x
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d['y'] = y
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l = try_read(name, f'select * from labels where x = {x} and y = {y}')
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if l == None:
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d['label'] = None
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d['node'] = None
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else:
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d['label'] = str(l['label'])
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d['node'] = str(l['node']) if l['node'] != None else None
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return d
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class Label(object):
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def __init__(self, input: dict[str, Any]) -> None:
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self.type = 'label'
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self.x = float(input['x'])
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self.y = float(input['y'])
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self.label = str(input['label'])
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self.node = str(input['node']) if 'node' in input and input['node'] != None else None
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self.f_type = f"'{self.type}'"
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self.f_x = self.x
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self.f_y = self.y
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self.f_label = f"'{self.label}'"
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self.f_node = f"'{self.node}'" if self.node != None else 'null'
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def as_dict(self) -> dict[str, Any]:
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return { 'type': self.type, 'x': self.x, 'y': self.y, 'label': self.label, 'node': self.node }
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def as_xy_dict(self) -> dict[str, Any]:
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return { 'type': self.type, 'x': self.x, 'y': self.y }
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def set_label_cache(name: str, cs: ChangeSet) -> SqlChangeSet:
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old = Label(get_label(name, cs.operations[0]['x'], cs.operations[0]['y']))
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raw_new = get_label(name, cs.operations[0]['x'], cs.operations[0]['y'])
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new_dict = cs.operations[0]
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schema = get_label_schema(name)
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for key, value in schema.items():
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if key in new_dict and not value['readonly']:
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raw_new[key] = new_dict[key]
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new = Label(raw_new)
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redo_sql = f"update labels set label = {new.f_label}, node = {new.f_node} where x = {new.f_x} and y = {new.f_y};"
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undo_sql = f"update labels set label = {old.f_label}, node = {old.f_node} where x = {old.f_x} and y = {old.f_y};"
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redo_cs = g_update_prefix | new.as_dict()
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undo_cs = g_update_prefix | old.as_dict()
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return SqlChangeSet(redo_sql, undo_sql, redo_cs, undo_cs)
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def set_label(name: str, cs: ChangeSet) -> ChangeSet:
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return execute_command(name, set_label_cache(name, cs))
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def add_label_cache(name: str, cs: ChangeSet) -> SqlChangeSet:
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new = Label(cs.operations[0])
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redo_sql = f"insert into labels (x, y, label, node) values ({new.f_x}, {new.f_y}, {new.f_label}, {new.f_node});"
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undo_sql = f"delete from labels where x = {new.f_x} and y = {new.f_y};"
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redo_cs = g_add_prefix | new.as_dict()
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undo_cs = g_delete_prefix | new.as_xy_dict()
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return SqlChangeSet(redo_sql, undo_sql, redo_cs, undo_cs)
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def add_label(name: str, cs: ChangeSet) -> ChangeSet:
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return execute_command(name, add_label_cache(name, cs))
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def delete_label_cache(name: str, cs: ChangeSet) -> SqlChangeSet:
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old = Label(get_label(name, cs.operations[0]['x'], cs.operations[0]['y']))
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redo_sql = f"delete from labels where x = {old.f_x} and y = {old.f_y};"
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undo_sql = f"insert into labels (x, y, label, node) values ({old.f_x}, {old.f_y}, {old.f_label}, {old.f_node});"
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redo_cs = g_delete_prefix | old.as_xy_dict()
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undo_cs = g_add_prefix | old.as_dict()
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return SqlChangeSet(redo_sql, undo_sql, redo_cs, undo_cs)
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class InpLabel:
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def __init__(self, line: str) -> None:
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tokens = line.split()
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num = len(tokens)
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has_desc = tokens[-1].startswith(';')
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num_without_desc = (num - 1) if has_desc else num
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self.x = float(tokens[0])
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self.y = float(tokens[1])
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self.label = str(tokens[2])
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self.node = str(tokens[3]) if num >= 4 else None
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def inp_in_label(section: list[str]) -> ChangeSet:
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cs = ChangeSet()
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for s in section:
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# skip comment
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if s.startswith(';'):
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continue
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obj = InpLabel(s)
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cs.append({'operation': API_ADD, 'type': 'label', 'x': obj.x, 'y': obj.y, 'label': obj.label, 'node': obj.node})
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return cs
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def inp_out_label(name: str) -> list[str]:
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lines = []
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objs = read_all(name, 'select * from labels')
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for obj in objs:
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x = obj['x']
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y = obj['y']
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label = obj['label']
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node = obj['node'] if obj['node'] != None else ''
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lines.append(f'{x} {y} {label} {node}')
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return lines
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