244 lines
9.5 KiB
Python
244 lines
9.5 KiB
Python
from PyQt5.QtWidgets import QWidget, QApplication, QMainWindow, QMessageBox
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from PyQt5.QtCore import QObject, QEvent, QRect, QMargins, Qt, QMimeData
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from PyQt5.QtGui import QPainter, QColor, QDragEnterEvent, QDropEvent
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from enum import Enum
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import re
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class PlaceArea(Enum):
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LeftArea = 0,
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RightArea = 1,
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TopArea = 2,
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BottomArea = 3,
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CenterArea = 4,
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UndefineArea = 5,
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class AcceptPanel(QWidget):
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def __init__(self, mgr):
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super(AcceptPanel, self).__init__(None)
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self.left_rect = QRect()
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self.right_rect = QRect()
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self.top_rect = QRect()
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self.bottom_rect = QRect()
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self.center_rect = QRect()
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self.hover_rect = QRect()
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self.setMouseTracking(True)
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self.setAcceptDrops(True)
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self.mgr_inst = mgr
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self.target_anchor :QWidget = None
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self.target_area = PlaceArea.UndefineArea
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def resizeEvent(self, a0):
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total_rect = self.rect()
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total_rect = total_rect - QMargins(5, 5, 5, 5)
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anchor_width = 30
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self.target_area = PlaceArea.UndefineArea
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self.left_rect = QRect(int(total_rect.left()), int(total_rect.center().y() - anchor_width / 2), int(anchor_width), int(anchor_width))
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self.right_rect = QRect(int(total_rect.right() - anchor_width), int(total_rect.center().y() - anchor_width / 2), int(anchor_width), int(anchor_width))
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self.top_rect = QRect(int(total_rect.center().x() - anchor_width / 2), int(total_rect.top()), int(anchor_width), int(anchor_width))
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self.bottom_rect = QRect(int(total_rect.center().x() - anchor_width / 2), int(total_rect.bottom() - anchor_width), int(anchor_width), int(anchor_width))
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self.center_rect = QRect(int(total_rect.center().x() - anchor_width / 2), int(total_rect.center().y() - anchor_width / 2), int(anchor_width), int(anchor_width))
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def async_with(self, target_view: QWidget):
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self.resize(target_view.size())
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self.target_anchor = target_view
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def paintEvent(self, a0):
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super(AcceptPanel, self).paintEvent(a0)
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painter = QPainter(self)
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painter.fillRect(self.rect(), Qt.lightGray)
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painter.fillRect(self.hover_rect, Qt.gray)
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painter.fillRect(self.top_rect, Qt.green)
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painter.fillRect(self.bottom_rect, Qt.green)
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painter.fillRect(self.left_rect, Qt.green)
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painter.fillRect(self.right_rect, Qt.green)
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painter.fillRect(self.center_rect, Qt.green)
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def dragMoveEvent(self, a0):
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self.hover_rect = self.rect()
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if self.left_rect.contains(a0.pos()):
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self.hover_rect.setWidth(int(self.hover_rect.width() / 3))
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self.target_area = PlaceArea.LeftArea
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elif self.right_rect.contains(a0.pos()):
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self.target_area = PlaceArea.RightArea
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self.hover_rect.setWidth(int(self.hover_rect.width() / 3))
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self.hover_rect.moveLeft(int(self.rect().right() - self.hover_rect.width()))
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elif self.top_rect.contains(a0.pos()):
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self.target_area = PlaceArea.TopArea
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self.hover_rect.setHeight(int(self.hover_rect.height() / 3))
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elif self.center_rect.contains(a0.pos()):
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self.target_area = PlaceArea.CenterArea
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pass
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elif self.bottom_rect.contains(a0.pos()):
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self.target_area = PlaceArea.BottomArea
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self.hover_rect.setHeight(int(self.hover_rect.height() / 3))
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self.hover_rect.moveTop(int(self.rect().bottom() - self.hover_rect.height()))
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else:
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self.hover_rect = QRect()
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self.target_area = PlaceArea.UndefineArea
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self.update()
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def dragEnterEvent(self, a0: QDragEnterEvent):
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if a0.mimeData().hasFormat("text/plain"):
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content = a0.mimeData().text()
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regex = re.compile("view-drags\\(([^\\(\\)]+)\\)")
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if regex.match(content):
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a0.acceptProposedAction()
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def dropEvent(self, a0: QDropEvent):
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regex = re.compile("view-drags\\(([^\\(\\)]+)\\)")
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result = regex.match(a0.mimeData().text())
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if result:
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from SplitPanel import SplitPanel, SplitType
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from DockPanel import DockPanel
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view_id = result.group(1)
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adjust_view: DockPanel = self.mgr_inst.get_dockpanel(view_id)
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abandon_frame = adjust_view.parent_res
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if abandon_frame is None:
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QMessageBox.critical(self, "操作无效", "视图不能与自身进行替换和拼接操作！");
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self.setVisible(False)
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self.setParent(self.__peak_window(self.target_anchor))
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return
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remains_attach_frame = abandon_frame.parent_res
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target_view: DockPanel = self.target_anchor
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if self.target_area == PlaceArea.CenterArea and not target_view.can_replace:
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self.setVisible(False)
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return
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if self.target_area == PlaceArea.UndefineArea:
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self.setVisible(False)
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return
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# 移除源视图
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self_siblings = abandon_frame.child()
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if remains_attach_frame is None:
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main_window:QMainWindow = abandon_frame.parent()
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views = [self_siblings[0], self_siblings[1]]
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views.pop(views.index(adjust_view))
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main_window.setCentralWidget(views[0])
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views[0].setParent(main_window)
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views[0].parent_res = None
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else:
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if self_siblings[0] == adjust_view:
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remains_attach_frame.replace_view(self_siblings[1], abandon_frame)
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else:
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remains_attach_frame.replace_view(self_siblings[0], abandon_frame)
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abandon_frame.setParent(None)
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abandon_frame.parent_res = None
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del abandon_frame
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place_frame = target_view.parent_res
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split_group:QWidget = None # 声明类型
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if self.target_area == PlaceArea.LeftArea:
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split_group = SplitPanel(adjust_view, target_view, SplitType.SPLIT_H)
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split_group.set_split_info(SplitType.SPLIT_H, 1/3)
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elif self.target_area == PlaceArea.RightArea:
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split_group = SplitPanel(target_view, adjust_view, SplitType.SPLIT_H)
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split_group.set_split_info(SplitType.SPLIT_H, 2/3)
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elif self.target_area == PlaceArea.TopArea:
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split_group = SplitPanel(adjust_view, target_view, SplitType.SPLIT_V)
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split_group.set_split_info(SplitType.SPLIT_V, 1/3)
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elif self.target_area == PlaceArea.BottomArea:
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split_group = SplitPanel(target_view, adjust_view, SplitType.SPLIT_V)
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split_group.set_split_info(SplitType.SPLIT_V, 2/3)
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elif self.target_area == PlaceArea.CenterArea:
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split_group = adjust_view
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if place_frame is None:
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main_window = target_view.parent()
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main_window.setCentralWidget(split_group)
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split_group.parent_res = None
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target_view.setVisible(False)
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self.mgr_inst.remove_dockpanel(target_view)
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del target_view
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else:
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place_frame.replace_view(split_group, target_view)
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self.setVisible(False)
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self.setParent(self.__peak_window(self.target_anchor))
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def __peak_window(self, obj: QWidget):
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if obj is None:
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return None
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if obj.__class__.__name__ == "QMainWindow":
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return obj
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return self.__peak_window(obj.parent())
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class DragManager(QObject):
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__unique_inst: 'DragManager' = None
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def __init__(self):
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super(DragManager, self).__init__()
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self.__dock_map = {}
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self.__accept_panel = AcceptPanel(self)
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self.__accept_panel.setVisible(False)
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@classmethod
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def instance(cls):
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if cls.__unique_inst is None:
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cls.__unique_inst = DragManager()
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return cls.__unique_inst
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def __peak_window(self, obj: QWidget):
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if obj is None:
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return None
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if obj.__class__.__name__ == "QMainWindow":
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return obj
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return self.__peak_window(obj.parent())
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def eventFilter(self, sender: QObject | None, event: QEvent | None):
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if event.type() == QEvent.Type.DragMove:
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if sender.isWindowType():
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sender.requestActivate()
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for ip in self.__dock_map:
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view_inst: QWidget = self.get_dockpanel(ip)
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if view_inst is None:
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return False
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gpos = sender.mapToGlobal(event.pos())
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point = view_inst.mapFromGlobal(gpos)
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if (view_inst.rect().contains(point)) and (self.__peak_window(view_inst).isActiveWindow()):
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self.__accept_panel.setParent(view_inst)
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self.__accept_panel.raise_()
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self.__accept_panel.async_with(view_inst)
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self.__accept_panel.setVisible(True)
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pass
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pass
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pass
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return super(DragManager, self).eventFilter(sender, event)
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def register_dockpanel(self, view):
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self.__dock_map[str(view.__hash__())] = view
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def remove_dockpanel(self, view):
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if str(view.__hash__()) in self.__dock_map:
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self.__dock_map.pop(str(view.__hash__()))
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def get_dockpanel(self, address: str):
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if address in self.__dock_map:
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return self.__dock_map[address]
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return None
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if __name__ == "__main__":
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app = QApplication([])
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accept = AcceptPanel(None)
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accept.show()
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app.exec()
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