82 lines
2.2 KiB
Python
82 lines
2.2 KiB
Python
from graph.directed_acyclic_graph.DAGLayout import DAGGraph
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from graph.DataType import Arrow, Point
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from typing import List
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from PyQt5.QtWidgets import QWidget, QApplication, QGraphicsView, QGraphicsScene, QGraphicsItem
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from PyQt5.QtCore import QRectF, Qt
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from PyQt5.QtGui import QFont, QBrush
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import sys
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from enum import Enum
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class StoryFragmentNode(QGraphicsItem):
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"""
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故事情节名称节点
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"""
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def __init__(self, name:str, font: QFont, parent):
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QGraphicsItem.__init__(self, parent)
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self.fragment_name = name
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self.font_bind = font
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self.data_bind: object = None
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pass
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def boundingRect(self) -> QRectF:
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size = self.font_bind.pixelSize()
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return QRectF(0, 0, size * len(self.fragment_name) + 10, size + 10)
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def paint(self, painter, option, widget = ...):
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outline = self.boundingRect()
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text_rect = QRectF(outline.x()+5, outline.y()+5, outline.width()-10, outline.height() - 10)
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painter.save()
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painter.fillRect(outline, QBrush(Qt.gray))
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painter.drawRect(outline)
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painter.setFont(self.font_bind)
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painter.drawText(text_rect, self.fragment_name)
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painter.restore()
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# 添加自定义功能函数
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def attach_data(self, data_inst: object):
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self.data_bind = data_inst
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pass
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def get_data(self) -> object:
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return self.data_bind
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class Direction(Enum):
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RankLR = 0,
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RankTB = 1,
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class DAGActiveView(QGraphicsView):
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def __init__(self, orie: Direction, parent):
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QGraphicsView.__init__(self, parent)
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self.orientation = orie
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self.scene_bind = QGraphicsScene(self)
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self.setScene(self.scene_bind)
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font_global = QFont()
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font_global.setPixelSize(20)
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self.scene_bind.addItem(StoryFragmentNode("实例节点：示例情节", font_global, None))
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pass
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def update_with_edges(self, arrows: List[Arrow]) -> None:
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tools = DAGGraph()
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tools.rebuild_from_edges(arrows)
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tools.graph_layout()
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total_nodes = tools.nodes_with_layout
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pass
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if __name__ == "__main__":
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app = QApplication(sys.argv)
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view = DAGActiveView(Direction.RankLR, None)
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view.show()
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app.exec() |