2016/7/20 1:18:29 PyQT5 炫酷的左侧导航效果

2016/7/20 1:18:29 
 
完整code
  1. from PyQt5.QtWidgets import (QApplication, QWidget, QHBoxLayout,
  2.                                 QTreeWidget, QTreeWidgetItem,
  3.                                 QGroupBox)
  4. from PyQt5.QtGui import QIcon, QPixmap
  5. from PyQt5.QtCore import QSize
  6.  
  7. class  Bar_Navigation(QWidget):
  8.         def  __init__(self):
  9.             super(Bar_Navigation, self).__init__()
  10.             self.setMinimumHeight(600);
  11.             self.setMinimumWidth(800);
  12.              
  13.             ##layout_main.setMargin(5)
  14.             ##layout_main.setSpace(5)
  15.             self.creat_main_layout()
  16.             self.creat_bar_navigation()
  17.             self.creat_left_box()
  18.           
  19.         def get_bar_list(self):
  20.             
  21.             bar_list_item = []
  22.             bar_list_1 = ["订货管理",
  23.                                             ["客户订货", "库存订货", "供货商订货"]
  24.                                     ]
  25.             bar_list_2 = ["入库管理",
  26.                                             ["采购入库", "订货入库", "其它入库"]
  27.                                     ]
  28.             bar_list_item.append(bar_list_1)
  29.             bar_list_item.append(bar_list_2)
  30.             return  bar_list_item
  31.              
  32.         def creat_main_layout(self): 
  33.             self.layout_main = QHBoxLayout()
  34.             self.setLayout( self.layout_main)
  35.           
  36.         def creat_bar_list(self, data):
  37.              
  38.             for item in data:
  39.                 item_1 =  QTreeWidgetItem( self.tree_Navigation)       
  40.                 ##item_1.setText(0,item[0])
  41.                 ## 设置节点的打开/关闭状态下的不同的图片
  42.                 icon = QIcon()
  43.                 ##节点打开状态
  44.                 icon.addPixmap(QPixmap("./logo2.png"), QIcon.Normal, QIcon.On)
  45.                 ##节点关闭状态　　
  46.                 icon.addPixmap(QPixmap("./logo1.png"), QIcon.Normal, QIcon.Off)
  47.                 item_1.setIcon(0, icon)
  48.                  
  49.                 for item_item in item[1]:
  50.                     item_1_1 =  QTreeWidgetItem( item_1);           
  51.                     item_1_1.setText(0,item_item)  
  52.                 self.tree_Navigation.addTopLevelItem(item_1);
  53.              
  54.             
  55.              
  56.         
  57.         
  58.         def creat_bar_navigation(self):
  59.             self.tree_Navigation = QTreeWidget()    
  60.             self.tree_Navigation.setHeaderLabel("左侧导航栏");           
  61.             self.tree_Navigation.setColumnCount(1)
  62.             self.tree_Navigation.setMaximumWidth(150);
  63.              
  64.             icon_size = QSize(100, 30)
  65.             self.tree_Navigation.setIconSize(icon_size)
  66.              
  67.             ##如果treewidget就一列，该列的宽度默认等于treewidget的宽度,两列以上的话才起作用.
  68.             ##self.tree_Navigation.setColumnWidth(0,100);
  69.             data = self.get_bar_list()
  70.             self.creat_bar_list(data)
  71.             self.layout_main.addWidget(self.tree_Navigation)
  72.             ## QModelIndex
  73.             ##self.tree_Navigation.doubleClicked.connect(self.showModelSelected)
  74.             ## QTreeWidgetItem
  75.             self.tree_Navigation.itemDoubleClicked.connect(self.showSelected)
  76.          
  77.         ## QModelIndex
  78.         def showModelSelected(self, modelIndex):
  79.              print( modelIndex.row(), modelIndex.column())
  80.               
  81.         ## itemObj:QTreeWidgetItem
  82.         def showSelected(self, item, column):
  83.             ##获得父节点
  84.             parent=item.parent()   
  85.              
  86.             ## 注:本例的深度只有2,因此只有index_top,index_row两个变量表示路径
  87.             ##根节点上的索引
  88.             ## 合理值:非负整数
  89.             index_top = 0
  90.             ## 子节点上的索引
  91.             ##如果为-1则标示是根节点上的项;如果不是-1则标示在子节点上
  92.             ## 合理值:非负整数
  93.             index_row = -1
  94.              
  95.             ## 如果是要判断是否为None，则：
  96.             if parent is None:
  97.                 index_top= self.tree_Navigation.indexOfTopLevelItem(item)
  98.             else :               
  99.                 index_top =  self.tree_Navigation.indexOfTopLevelItem(parent) 
  100.                 index_row=parent.indexOfChild(item)##获得节点在父节点中的行号(从0开始)
  101.                  
  102.             print(index_top,  index_row)
  103.              
  104.         def creat_left_box(self):
  105.             self.box_left = QGroupBox('left party')  
  106.             self.layout_main.addWidget(self.box_left)
  107.  
  108. if __name__ == "__main__":
  109.  
  110.     import sys
  111.  
  112.     app = QApplication(sys.argv)
  113.     window = Bar_Navigation()
  114.     window.show()
  115.  
  116.     sys.exit(app.exec_())





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原文地址：https://www.cnblogs.com/topshooter/p/5687865.html