wizard/BCpuPage.py

   1 #!/usr/bin/env python
   2 # encoding: utf-8
   3 #
   4 # Copyright 2008 Develer S.r.l. (http://www.develer.com/)
   5 # All rights reserved.
   6 #
   7 # $Id:$
   8 #
   9 # Author: Lorenzo Berni <duplo@develer.com>
  10 #
  11
  12
  13 from BWizardPage import *
  14 import bertos_utils
  15 import qvariant_converter
  16
  17 from const import *
  18
  19 class BCpuPage(BWizardPage):
  20     """
  21     Page of the wizard that permits to choose the cpu from the supported ones.
  22     """
  23
  24     def __init__(self):
  25         BWizardPage.__init__(self, UI_LOCATION + "/cpu_select.ui")
  26         self.setTitle(self.tr("Select the CPU"))
  27
  28     ## Overloaded QWizardPage methods ##
  29
  30     def isComplete(self):
  31         """
  32         Overload of the QWizardPage isComplete method.
  33         """
  34         if self.pageContent.cpuList.currentRow() != -1:
  35             self.pageContent.frequencyLabel.setVisible(True)
  36             self.pageContent.frequencySpinBox.setVisible(True)
  37             infos = qvariant_converter.getDict(self.pageContent.cpuList.currentItem().data(Qt.UserRole))
  38             for key, value in infos.items():
  39                 if type(CPU_DEF[key]) == list:
  40                     infos[key] = qvariant_converter.getStringList(value)
  41                 if type(CPU_DEF[key]) == str or type(CPU_DEF) == unicode:
  42                     infos[key] = qvariant_converter.getString(value)
  43             self.setProjectInfo("CPU_INFOS", infos)
  44             self.setProjectInfo("CPU_NAME", unicode(self.pageContent.cpuList.currentItem().text()))
  45             self.setProjectInfo("SELECTED_FREQ", unicode(long(self.pageContent.frequencySpinBox.value())))
  46             return True
  47         else:
  48             return False
  49
  50     ####
  51
  52     ## Overloaded BWizardPage methods ##
  53
  54     def setupUi(self):
  55         """
  56         Overload of the BWizardPage setupUi method.
  57         """
  58         self.pageContent.cpuList.setSortingEnabled(True)
  59         self.pageContent.descriptionLabel.setVisible(False)
  60         self.pageContent.descriptionLabel.setText("")
  61         self.pageContent.frequencyLabel.setVisible(False)
  62         self.pageContent.frequencySpinBox.setVisible(False)
  63
  64     def connectSignals(self):
  65         """
  66         Overload of the BWizardPage connectSignals method.
  67         """
  68         self.connect(self.pageContent.cpuList, SIGNAL("itemSelectionChanged()"), self.rowChanged)
  69         self.connect(self.pageContent.frequencySpinBox, SIGNAL("valueChanged(double)"), self.freqChanged)
  70
  71     def reloadData(self):
  72         """
  73         Overload of the BWizardPage reloadData method.
  74         """
  75         QApplication.instance().setOverrideCursor(Qt.WaitCursor)
  76         bertos_utils.loadSourceTree(self.project())
  77         self.populateCpuList()
  78         cpu_name = self.projectInfo("CPU_NAME")
  79         self.setupUi()
  80         if not cpu_name is None:
  81             self.selectItem(cpu_name)
  82         QApplication.instance().restoreOverrideCursor()
  83         self.emit(SIGNAL("completeChanged()"))
  84
  85     ####
  86
  87     ## Slots ##
  88
  89     def rowChanged(self):
  90         """
  91         Slot called when the user select an entry from the cpu list.
  92         """
  93         description = qvariant_converter.getDict(self.pageContent.cpuList.currentItem().data(Qt.UserRole))["CPU_DESC"]
  94         description = qvariant_converter.getStringList(description)
  95         frequency = qvariant_converter.getDict(self.pageContent.cpuList.currentItem().data(Qt.UserRole))["CPU_DEFAULT_FREQ"]
  96         frequency = qvariant_converter.getString(frequency)
  97         frequency = frequency.replace("U", "").replace("L", "")
  98         self.pageContent.descriptionLabel.setText("<br>".join(description))
  99         self.pageContent.descriptionLabel.setVisible(True)
 100         self.pageContent.frequencySpinBox.setValue(long(frequency))
 101         self.emit(SIGNAL("completeChanged()"))
 102
 103     def freqChanged(self):
 104         self.emit(SIGNAL("completeChanged()"))
 105
 106     ####
 107
 108     def populateCpuList(self):
 109         """
 110         Fills the cpu list.
 111         """
 112         self.pageContent.cpuList.clear()
 113         self.pageContent.cpuList.setCurrentItem(None)
 114         infos = bertos_utils.loadCpuInfos(self.project())
 115         for cpu in infos:
 116             item = QListWidgetItem(cpu["CPU_NAME"])
 117             item.setData(Qt.UserRole, qvariant_converter.convertDict(cpu))
 118             self.pageContent.cpuList.addItem(item)
 119
 120     def selectItem(self, cpu):
 121         """
 122         Selects the given cpu from the list.
 123         """
 124         elements = self.pageContent.cpuList.findItems(cpu, Qt.MatchCaseSensitive)
 125         if len(elements) == 1:
 126             self.pageContent.cpuList.setCurrentItem(elements[0])