mirror of
https://gitee.com/py2cn/pyminer.git
synced 2024-12-02 11:48:14 +08:00
优化重叠情况
重构代码，添加流程图自动捕捉，并且像素可以调节，方便调整精度。
This commit is contained in:
侯展意
parent
b52c6d3d19
commit
c914727edf
@ -3,7 +3,7 @@ from PyQt5.QtGui import QPolygonF, QPen, QPainterPath, QColor, QPainter, QBrush
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from PyQt5.QtWidgets import QGraphicsLineItem, QGraphicsItem, QGraphicsSceneMouseEvent, QGraphicsObject, \
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QStyleOptionGraphicsItem, QWidget, QGraphicsSceneHoverEvent
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from typing import TYPE_CHECKING, Tuple, List
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from typing import TYPE_CHECKING, Tuple, List, Callable
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if TYPE_CHECKING:
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from .flowchart_widget import Node, PMGraphicsScene
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@ -11,9 +11,41 @@ if TYPE_CHECKING:
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COLOR_NORMAL = QColor(212, 227, 242)
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COLOR_HOVER = QColor(255, 200, 00)
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COLOR_HOVER_PORT = QColor(0, 0, 50)
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COLOR_HOVER_MID_POINT = QColor(0, 0, 200)
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COLOR_SELECTED = QColor(255, 255, 0)
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def round_position(point: QPointF, pixels=5):
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x, y = point.x(), point.y()
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x_cor, y_cor = round(x * 1.0 / pixels) * pixels, round(y * 1.0 / pixels) * pixels
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return QPointF(x_cor, y_cor)
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class PMGGraphicsLineItem(QGraphicsLineItem):
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def __init__(self, line: QLineF):
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super(PMGGraphicsLineItem, self).__init__(line)
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self.callback = None
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self.parent_line: 'CustomLine' = None
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def bind_callback(self, parent_line: 'CustomLine' = None):
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self.parent_line = parent_line
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def mousePressEvent(self, event: 'QGraphicsSceneMouseEvent') -> None:
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'''
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这里不能进行继承。一旦进行了继承，似乎会让下面所有的东西都收到信号，从而无法选定。
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:param event:
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:return:
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'''
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super(PMGGraphicsLineItem, self).mousePressEvent(event)
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self.parent_line.on_line_item_pressed(event, self)
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def mouseDoubleClickEvent(self, event: 'QGraphicsSceneMouseEvent') -> None:
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self.parent_line.add_mid_point(self, pos=event.scenePos())
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def bind_mouse_clicked(self, callback: Callable):
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self.callback = callback
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class CustomLine(QGraphicsLineItem):
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'''
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CustomLine不是QObject，没有办法绑定信号，只能用回调函数的方式。
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@ -35,24 +67,61 @@ class CustomLine(QGraphicsLineItem):
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repaint_callback = None
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def __init__(self, start_port: 'CustomPort', end_port: 'CustomPort', canvas: 'PMGraphicsScene' = None,
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mid_points: 'List[CustomCenterPoint]' = None):
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mid_points: 'List[CustomMidPoint]' = None):
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super(CustomLine, self).__init__()
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self.color = COLOR_NORMAL
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self.setFlags(QGraphicsItem.ItemIsMovable | QGraphicsItem.ItemIsSelectable) # 拖动
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self.start_port = start_port
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self.end_port = end_port
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if self not in start_port.connected_lines:
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start_port.connected_lines.append(self)
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if self not in end_port.connected_lines:
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end_port.connected_lines.append(self)
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self.line_Items: List['QGraphicsLineItem'] = []
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self.center_points = mid_points if (mid_points is not None) else [CustomCenterPoint()]
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self.center_points = mid_points if (mid_points is not None) else []
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for p in self.center_points:
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canvas.addItem(p)
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center_point = self.center_points[0]
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center_point.point_dragged.connect(self.refresh)
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p.point_dragged.connect(self.refresh)
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p.line = self
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canvas.signal_clear_selection.connect(self.on_clear_selection)
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self.refresh()
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self.canvas = canvas
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self.init_line_items()
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def remove_mid_point(self, mid_point: 'CustomMidPoint'):
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index = self.center_points.index(mid_point)
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point_to_remove = self.center_points.pop(index)
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line_to_remove = self.line_Items.pop(index)
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self.canvas.removeItem(point_to_remove)
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self.canvas.removeItem(line_to_remove)
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self.canvas.removeItem(mid_point)
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self.refresh_line_items()
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self.update()
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self.canvas.graphics_view.viewport().update()
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def add_mid_point(self, line_item: 'PMGGraphicsLineItem', pos: QPointF):
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index = self.line_Items.index(line_item)
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new_center_point = CustomMidPoint(pos, line=self)
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self.canvas.addItem(new_center_point)
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self.center_points.insert(index, new_center_point)
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new_center_point.point_dragged.connect(self.refresh)
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if index == 0:
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last_pos = self.start_port.center_pos
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else:
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last_pos = self.center_points[index].center_pos
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next_pos = new_center_point.center_pos
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new_line_item = PMGGraphicsLineItem(QLineF(last_pos, next_pos))
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new_line_item.bind_callback(self)
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pen = QPen()
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pen.setColor(self.color)
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pen.setWidth(5)
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new_line_item.setPen(pen)
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self.canvas.addItem(new_line_item)
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self.line_Items.insert(index, new_line_item)
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self.refresh_line_items()
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self.update()
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self.canvas.graphics_view.viewport().update()
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def init_line_items(self):
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'''
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初始化线段，包括其中间节点。
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@ -62,8 +131,9 @@ class CustomLine(QGraphicsLineItem):
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last_pos = self.start_port.center_pos
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for p in self.center_points:
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pos = p.center_pos
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line_item = QGraphicsLineItem(QLineF(last_pos, pos))
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line_item.mousePressEvent = self.on_line_item_pressed
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line_item = PMGGraphicsLineItem(QLineF(last_pos, pos))
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# line_item.mousePressEvent = self.on_line_item_pressed
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line_item.bind_callback(self)
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pen = QPen()
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pen.setColor(self.color)
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pen.setWidth(5)
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@ -71,8 +141,9 @@ class CustomLine(QGraphicsLineItem):
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self.canvas.addItem(line_item)
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last_pos = pos
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self.line_Items.append(line_item)
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line_item = QGraphicsLineItem(QLineF(last_pos, self.end_port.center_pos))
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line_item.mousePressEvent = self.on_line_item_pressed
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line_item = PMGGraphicsLineItem(QLineF(last_pos, self.end_port.center_pos))
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# line_item.mousePressEvent = self.on_line_item_pressed
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line_item.bind_callback(self)
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self.canvas.addItem(line_item)
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self.line_Items.append(line_item)
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@ -93,19 +164,18 @@ class CustomLine(QGraphicsLineItem):
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line = QLineF(last_pos, self.end_port.center_pos)
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self.line_Items[-1].setLine(line)
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def on_line_item_pressed(self, e: 'QGraphicsSceneMouseEvent'):
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def on_line_item_pressed(self, e: 'QGraphicsSceneMouseEvent', line_item: 'CustomLine'):
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'''
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当线段被点击时触发的事件。
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:param e:
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:return:
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'''
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print(e)
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print(line_item)
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if e.button() == Qt.LeftButton:
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if not e.modifiers() == Qt.ControlModifier:
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self.canvas.signal_clear_selection.emit()
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self.setSelected(True)
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print(self.canvas.selectedItems())
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self.canvas.select_item(self)
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print(self.canvas.selected_items)
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self.color = COLOR_SELECTED
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def on_clear_selection(self):
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@ -114,7 +184,7 @@ class CustomLine(QGraphicsLineItem):
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:return:
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'''
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self.color = COLOR_NORMAL
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self.setSelected(False)
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self.canvas.unselect_item(self)
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# self.update()
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def refresh(self):
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@ -191,12 +261,36 @@ class CustomLine(QGraphicsLineItem):
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self.update()
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def on_delete(self):
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'''
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删除线对象
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首先从起始和结束的端口的连线中删除这个线；
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然后，从画布上移除自身所有的中间线段对象和中继点对象
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从画布上删除自身；
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从所有连线的列表中移除自身。
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:return:
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'''
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try:
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self.start_port.connected_lines.remove(self)
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except ValueError:
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pass
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try:
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self.end_port.connected_lines.remove(self)
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except ValueError:
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pass
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for line_item in self.line_Items:
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self.canvas.removeItem(line_item)
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for mid_item in self.center_points:
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self.canvas.removeItem(mid_item)
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self.canvas.removeItem(self)
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self.canvas.lines.remove(self)
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class CustomCenterPoint(QGraphicsObject):
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class CustomMidPoint(QGraphicsObject):
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point_dragged = pyqtSignal(QGraphicsObject)
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def __init__(self, pos=None):
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super(CustomCenterPoint, self).__init__()
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def __init__(self, pos: QPointF = None, line: 'CustomLine' = None):
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super(CustomMidPoint, self).__init__()
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# self.setFlags(QGraphicsItem.ItemIsMovable | QGraphicsItem.ItemIsSelectable) # 拖动
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self.setAcceptHoverEvents(True) # 接受鼠标悬停事件
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self.relative_pos = (0, 0)
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@ -204,7 +298,12 @@ class CustomCenterPoint(QGraphicsObject):
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self.size = (10, 10)
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# self.line = line
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if pos is not None:
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self.setPos(QPointF(*pos))
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# self.setPos()
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# if isinstance(pos,list) or isinstance(pos,tuple):
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# self.setPos(pos[0],pos[1])
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# else:
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self.setPos(pos)
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self.line = line
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def boundingRect(self):
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return QRectF(0, 0, self.size[0], self.size[1])
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@ -214,13 +313,18 @@ class CustomCenterPoint(QGraphicsObject):
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return QPointF(self.x() + self.size[0] / 2, self.y() + self.size[1] / 2)
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def mouseMoveEvent(self, event: 'QGraphicsSceneMouseEvent') -> None:
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'''
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鼠标拖动时触发的事件。
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:param event:
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:return:
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'''
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mouse_x, mouse_y = event.scenePos().x(), event.scenePos().y()
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self.setPos(QPointF(mouse_x, mouse_y))
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self.setPos(round_position(QPointF(mouse_x, mouse_y)))
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self.point_dragged.emit(self)
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def paint(self, painter, styles, widget=None):
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pen1 = QPen(Qt.SolidLine)
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pen1.setColor(QColor(128, 128, 128))
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pen1.setColor(self.color)
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painter.setPen(pen1)
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brush1 = QBrush(Qt.SolidPattern)
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@ -231,8 +335,7 @@ class CustomCenterPoint(QGraphicsObject):
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painter.drawRoundedRect(self.boundingRect(), 10, 10)
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def hoverEnterEvent(self, event: 'QGraphicsSceneHoverEvent') -> None:
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self.color = COLOR_HOVER_PORT
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self.color = COLOR_HOVER_MID_POINT
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self.update()
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def hoverLeaveEvent(self, event: 'QGraphicsSceneHoverEvent') -> None:
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@ -261,6 +364,9 @@ class CustomCenterPoint(QGraphicsObject):
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painter.drawRoundedRect(self.boundingRect(), 10, 10) # 绘制函数
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painter.end()
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def mouseDoubleClickEvent(self, event: 'QGraphicsSceneMouseEvent') -> None:
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self.line.remove_mid_point(self)
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class CustomPort(QGraphicsObject):
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port_clicked = pyqtSignal(QGraphicsObject)
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@ -273,6 +379,8 @@ class CustomPort(QGraphicsObject):
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self.id = port_id
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self.size = (10, 10)
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self.content = content
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self.connected_lines = []
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self.canvas = None
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def boundingRect(self):
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return QRectF(0, 0, self.size[0], self.size[1])
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@ -328,6 +436,11 @@ class CustomPort(QGraphicsObject):
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pos = self.pos()
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return pos.x(), pos.y()
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def on_delete(self):
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for line in self.connected_lines:
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line.on_delete()
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self.canvas.removeItem(self)
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def __repr__(self):
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return super(CustomPort, self).__repr__() + 'id = ' + str(self.id)
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@ -342,8 +455,6 @@ class CustomRect(QGraphicsItem):
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self.color = COLOR_NORMAL
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self.node = node
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def boundingRect(self):
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return QRectF(0, 0, 200, 50)
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@ -372,7 +483,9 @@ class CustomRect(QGraphicsItem):
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self.update()
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def mouseMoveEvent(self, event: QGraphicsSceneMouseEvent) -> None:
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self.setPos(event.scenePos().x() - self.relative_pos[0], event.scenePos().y() - self.relative_pos[1])
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self.setPos(round_position(
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QPointF(event.scenePos().x() - self.relative_pos[0],
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event.scenePos().y() - self.relative_pos[1])))
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self.node.refresh_pos()
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def mousePressEvent(self, evt: QGraphicsSceneMouseEvent):
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@ -385,7 +498,7 @@ class CustomRect(QGraphicsItem):
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print(self.relative_pos)
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if not evt.modifiers() == Qt.ControlModifier:
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self.scene().signal_clear_selection.emit()
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self.setSelected(True)
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self.scene().select_item(self)
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print(self.scene().selectedItems())
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self.color = COLOR_SELECTED
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elif evt.button() == Qt.RightButton:
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@ -408,4 +521,8 @@ class CustomRect(QGraphicsItem):
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:return:
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'''
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self.color = COLOR_NORMAL
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self.setSelected(False)
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self.scene().unselect_item(self)
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def on_delete(self):
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self.node.on_delete()
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pass
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@ -2,11 +2,12 @@ import sys
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from typing import Tuple, List, Dict
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import json
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from PyQt5.QtWidgets import QWidget, QVBoxLayout, QHBoxLayout, QToolButton, QSpacerItem, QSizePolicy, QGraphicsView, \
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QFrame, QApplication, QGraphicsScene, QGraphicsSceneMouseEvent
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from PyQt5.QtCore import QSize, QCoreApplication, pyqtSignal, QLineF, QObject
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from PyQt5.QtGui import QIcon, QPixmap, QPen, QColor
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QFrame, QApplication, QGraphicsScene, QGraphicsSceneMouseEvent, QMenu, QGraphicsSceneContextMenuEvent, \
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QGraphicsTextItem
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from PyQt5.QtCore import QSize, QCoreApplication, pyqtSignal, QLineF, QObject, QPoint, Qt, QPointF
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from PyQt5.QtGui import QIcon, QPixmap, QPen, QColor, QKeyEvent
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from pmgwidgets.flowchart.flow_items import CustomRect, CustomPort, CustomLine, CustomCenterPoint
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from pmgwidgets.flowchart.flow_items import CustomRect, CustomPort, CustomLine, CustomMidPoint
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COLOR_NORMAL = QColor(212, 227, 242)
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COLOR_HOVER = QColor(255, 200, 00)
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@ -18,16 +19,30 @@ class PMGraphicsScene(QGraphicsScene):
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signal_port_clicked = pyqtSignal(str) # 点击端口的事件
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signal_clear_selection = pyqtSignal() # 清除选择的事件
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def __init__(self, parent=None, graphics_view: 'QGraphicsView' = None):
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def __init__(self, parent=None, graphics_view: 'QGraphicsView' = None, flow_widget: 'PMFlowWidget' = None):
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super().__init__(parent)
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from pmgwidgets.flowchart.flow_items import CustomLine
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self.lines: List[CustomLine] = []
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self.nodes: List['Node'] = []
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self.drawing_lines = False
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self.line_start_port = None
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self.line_start_point = None
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self.line_end_port = None
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self.line = self.addLine(0, 0, 100, 100, QPen())
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self.line = self.addLine(0, 0, 1, 1, QPen())
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self.graphics_view = graphics_view
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self.flow_widget: 'PMFlowWidget' = flow_widget
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self.menu = QMenu()
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self.menu.addAction('New').triggered.connect(lambda x: self.add_node())
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self.menu.addAction('Delete Selected').triggered.connect(lambda x: self.delete_selected_item())
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self.selected_items = []
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def contextMenuEvent(self, event: 'QGraphicsSceneContextMenuEvent') -> None:
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super(PMGraphicsScene, self).contextMenuEvent(event)
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self.menu.exec_(event.screenPos())
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def keyPressEvent(self, event: 'QKeyEvent') -> None:
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if event.key() == Qt.Key_Delete:
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self.delete_selected_item()
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def mouseMoveEvent(self, event: 'QGraphicsSceneMouseEvent') -> None:
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super(PMGraphicsScene, self).mouseMoveEvent(event)
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@ -46,18 +61,51 @@ class PMGraphicsScene(QGraphicsScene):
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self.signal_item_dragged.connect(line.refresh)
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self.drawing_lines = False
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# def selectionChanged(self) -> None:
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# super(PMGraphicsScene, self).selectionChanged()
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# print('selection changed !')
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def add_node(self):
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view = self.graphics_view
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n = Node(self, 'node3', input_ports=[CustomPort(10), CustomPort(11)],
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output_ports=[CustomPort(12), CustomPort(13), CustomPort(14)])
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n.set_pos(200, 50)
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print(n.get_pos())
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self.nodes.append(n)
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def delete_selected_item(self):
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'''
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删除被选中的物品
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:return:
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'''
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print(self.selectedItems())
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for selected_item in self.selected_items:
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if hasattr(selected_item, 'on_delete'):
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selected_item.on_delete()
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self.selected_items = []
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print('delete!')
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def unselect_item(self, item):
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||||
if item in self.selected_items:
|
||||
self.selected_items.remove(item)
|
||||
|
||||
def select_item(self, item):
|
||||
if item not in self.selected_items:
|
||||
self.selected_items.append(item)
|
||||
|
||||
|
||||
class Node(QObject):
|
||||
'''
|
||||
Node是一个节点的抽象
|
||||
'''
|
||||
|
||||
def __init__(self, canvas: 'PMGraphicsScene', name, input_ports: List[CustomPort] = None,
|
||||
output_ports: List[CustomPort] = None):
|
||||
output_ports: List[CustomPort] = None, content: object = None):
|
||||
super(Node, self).__init__()
|
||||
|
||||
self.name = name
|
||||
self.base_rect = CustomRect(self)
|
||||
self.text = QGraphicsTextItem(parent=self.base_rect)
|
||||
self.text.setPos(100, 10)
|
||||
self.text.setPlainText(self.name)
|
||||
if input_ports == None:
|
||||
self.input_ports = [CustomPort(0), CustomPort(1)]
|
||||
else:
|
||||
@ -67,13 +115,25 @@ class Node(QObject):
|
||||
else:
|
||||
self.output_ports = output_ports
|
||||
self.canvas = canvas
|
||||
self.content = None
|
||||
|
||||
self.setup()
|
||||
|
||||
def set_pos(self, x: int, y: int):
|
||||
'''
|
||||
设置位置，左上角角点
|
||||
:param x:
|
||||
:param y:
|
||||
:return:
|
||||
'''
|
||||
self.base_rect.setPos(x, y)
|
||||
self.refresh_pos()
|
||||
|
||||
def get_pos(self) -> Tuple[int, int]:
|
||||
'''
|
||||
获取位置，左上角角点
|
||||
:return:
|
||||
'''
|
||||
pos = self.base_rect.pos()
|
||||
return pos.x(), pos.y()
|
||||
|
||||
@ -84,15 +144,16 @@ class Node(QObject):
|
||||
x_input = self.base_rect.x() + 5
|
||||
x_output = self.base_rect.x() + self.base_rect.boundingRect().width() - 15
|
||||
for i, p in enumerate(self.input_ports):
|
||||
p.setPos(x_input, y + int(dy_input * (1 + i)))
|
||||
p.setPos(QPointF(x_input, y + int(dy_input * (1 + i))))
|
||||
for i, p in enumerate(self.output_ports):
|
||||
p.setPos(x_output, y + int(dy_output * (1 + i)))
|
||||
p.setPos(QPointF(x_output, y + int(dy_output * (1 + i))))
|
||||
self.canvas.signal_item_dragged.emit('')
|
||||
|
||||
def setup(self):
|
||||
self.base_rect.setPos(80, 80)
|
||||
self.canvas.signal_clear_selection.connect(self.base_rect.on_clear_selection)
|
||||
self.canvas.addItem(self.base_rect)
|
||||
|
||||
for p in self.input_ports + self.output_ports:
|
||||
self.canvas.addItem(p)
|
||||
p.port_clicked.connect(self.on_port_clicked)
|
||||
@ -109,6 +170,14 @@ class Node(QObject):
|
||||
self.canvas.line_start_point = port.center_pos
|
||||
self.canvas.line_start_port = port
|
||||
|
||||
def on_delete(self):
|
||||
for port in self.input_ports + self.output_ports:
|
||||
port.canvas = self.canvas
|
||||
port.on_delete()
|
||||
self.canvas.removeItem(self.base_rect)
|
||||
self.canvas.nodes.remove(self)
|
||||
self.deleteLater()
|
||||
|
||||
def __repr__(self):
|
||||
s = super(Node, self).__repr__()
|
||||
return s + repr(self.input_ports) + repr(self.output_ports)
|
||||
@ -274,7 +343,7 @@ class PMFlowWidget(QWidget):
|
||||
# self.rect2 = CustomRect()
|
||||
# self.rect2.setPos(100, 100)
|
||||
#
|
||||
self.scene = PMGraphicsScene(graphics_view=self.graphicsView)
|
||||
self.scene = PMGraphicsScene(graphics_view=self.graphicsView, flow_widget=self)
|
||||
self.scene.setSceneRect(0, 0, 300, 300)
|
||||
|
||||
# self.scene.addItem(self.rect)
|
||||
@ -294,7 +363,7 @@ class PMFlowWidget(QWidget):
|
||||
|
||||
self.nodes = [self.n, self.n2]
|
||||
|
||||
self.nodes: List[Node] = []
|
||||
self.nodes: List[Node] = self.scene.nodes
|
||||
self.lines = self.scene.lines
|
||||
|
||||
self.load_flowchart()
|
||||
@ -342,8 +411,6 @@ class PMFlowWidget(QWidget):
|
||||
node_properties['input_ports'] = input_ports_dic
|
||||
node_properties['output_ports'] = output_ports_dic
|
||||
nodes_dic[node.name] = node_properties
|
||||
# print(nodes_dic)
|
||||
|
||||
with open(r'c:\users\12957\desktop\123.txt', 'w') as f:
|
||||
json.dump(fc_info, f, indent=4)
|
||||
pass
|
||||
@ -380,7 +447,7 @@ class PMFlowWidget(QWidget):
|
||||
mid_positions = line_property['mid_positions']
|
||||
mid_points = []
|
||||
for pos in mid_positions:
|
||||
mid_points.append(CustomCenterPoint(pos=pos))
|
||||
mid_points.append(CustomMidPoint(pos=QPointF(*pos)))
|
||||
print(start_port, end_port, start_id, end_id)
|
||||
|
||||
line = CustomLine(canvas=self.scene, start_port=start_port, end_port=end_port, mid_points=mid_points)
|
||||
|
||||
7
pmgwidgets/flowchart/utils.py
Normal file
7
pmgwidgets/flowchart/utils.py
Normal file
@ -0,0 +1,7 @@
|
||||
from PyQt5.QtCore import QPointF
|
||||
|
||||
|
||||
def round_position(point: QPointF, pixels=5):
|
||||
x, y = point.x(), point.y()
|
||||
x_cor, y_cor = round(x * 1.0 / pixels) * pixels, round(y * 1.0 / pixels) * pixels
|
||||
return QPointF(x_cor, y_cor)
|
||||
@ -12,6 +12,9 @@ class Extension(BaseExtension):
|
||||
app_toolbar_interface = self.extension_lib.get_interface('applications_toolbar')
|
||||
import os
|
||||
path = os.path.dirname(__file__)
|
||||
app_toolbar_interface.add_app( group='应用测试', text='测试插件',
|
||||
icon_path=':/pyqt/source/images/lc_searchdialog.png', callback=lambda :print('this is app'), hint='')
|
||||
|
||||
app_toolbar_interface.add_process_action('应用测试', '测试对话框',
|
||||
':/pyqt/source/images/lc_searchdialog.png',
|
||||
['python','-u',os.path.join(path,'run_dialog.py')])
|
||||
|
||||
Loading…
Reference in New Issue
Block a user