Source Code for Module pyforms.gui.Controls.ControlCombo

  1  #!/usr/bin/python 
  2  # -*- coding: utf-8 -*- 
  3   
  4  """ pyforms.gui.Controls.ControlCombo """ 
  5   
  6  import pyforms.Utils.tools as tools 
  7  from PyQt4 import uic 
  8  from pyforms.gui.Controls.ControlBase import ControlBase 
  9   
 10  __author__ = "Ricardo Ribeiro" 
 11  __copyright__ = "" 
 12  __credits__ = "Ricardo Ribeiro" 
 13  __license__ = "MIT" 
 14  __version__ = "0.0" 
 15  __maintainer__ = ["Ricardo Ribeiro", "Carlos Mão de Ferro"] 
 16  __email__ = ["ricardojvr at gmail.com", "cajomferro at gmail.com"] 
 17  __status__ = "Development" 
 18   
 19   
 20 -class ControlCombo(ControlBase): 
 21      """This class represents a wrapper to the combo box""" 
 22   
 23      _items = None 
 24   
 25 -    def initForm(self): 
 26          control_path = tools.getFileInSameDirectory(__file__, "comboInput.ui") 
 27          self._form = uic.loadUi(control_path) 
 28          self._form.label.setText(self._label) 
 29          self._form.comboBox.currentIndexChanged.connect( 
 30              self.currentIndexChanged) 
 31          self._form.comboBox.activated.connect( 
 32              self._activated) 
 33          self._form.comboBox.highlighted.connect( 
 34              self._highlighted) 
 35   
 36          self._items = {} 
 37   
 38          self._addingItem = False 
 39   
 40 -    def currentIndexChanged(self, index): 
 41          """Called when the user chooses an item in the combobox and  
 42          the selected choice is different from the last one selected. 
 43          @index: item's index 
 44          """ 
 45          if not self._addingItem: 
 46              item = self._form.comboBox.currentText() 
 47              if len(item) >= 1: 
 48                  ControlBase.value.fset(self, self._items[str(item)]) 
 49   
 50 -    def _activated(self, index): 
 51          self.activated(index) 
 52   
 53 -    def activated(self, index): 
 54          """Called when the user chooses an item in the combobox. 
 55          Note that this signal happens even when the choice is not changed 
 56          @index: item's index 
 57          """ 
 58          pass 
 59   
 60 -    def _highlighted(self, index): 
 61          """Called when an item in the combobox popup 
 62           list is highlighted by the user. 
 63           @index: item's index 
 64          """ 
 65          self.highlighted(index) 
 66   
 67 -    def highlighted(self, index): 
 68          pass 
 69   
 70 -    def addItem(self, label, value=None): 
 71          self._addingItem = True 
 72          if not (label in self._items.keys()): 
 73              self._form.comboBox.addItem(label) 
 74   
 75          firstValue = False 
 76          if self._items == {}: 
 77              firstValue = True 
 78   
 79          if value is None: 
 80              self._items[label] = label 
 81          else: 
 82              self._items[label] = value 
 83          self._addingItem = False 
 84   
 85          if firstValue: 
 86              self.value = self._items[label] 
 87   
 88 -    def clearItems(self): 
 89          self._items = {} 
 90          self._value = None 
 91          self._form.comboBox.clear() 
 92   
 93      @property 
 94 -    def items(self): return self._items.items() 
 95   
 96      @property 
 97 -    def value(self): return self._value 
 98   
 99      @value.setter 
100 -    def value(self, value): 
101          for key, val in self.items: 
102              if value == val: 
103                  index = self._form.comboBox.findText(key) 
104                  self._form.comboBox.setCurrentIndex(index) 
105                  if self._value != value: 
106                      self.changed() 
107                  self._value = val 
108   
109      @property 
110 -    def text(self): return str(self._form.comboBox.currentText()) 
111   
112      @text.setter 
113 -    def text(self, value): 
114          for key, val in self.items: 
115              if value == key: 
116                  self.value = val 
117                  break 
118