使用PyGtk和Glade构建应用程序

#!/usr/bin/env python import sys try: import pygtk pygtk.require("2.0") except: pass try: import gtk import gtk.glade except: sys.exit(1) class pyWine: """This is the PyWine application""" def __init__(self): #Set the Glade file self.gladefile = "pywine.glade" self.wTree = gtk.glade.XML(self.gladefile, "mainWindow") #Create our dictionay and connect it dic = {"on_mainWindow_destroy" : gtk.main_quit , "on_AddWine" : self.OnAddWine} self.wTree.signal_autoconnect(dic) def OnAddWine(self, widget): """Called when the use wants to add a wine""" print "OnAddWine" if __name__ == "__main__": wine = pyWine() gtk.main()

class Wine: """This class represents all the wine information""" def __init__(self, wine="", winery="", grape="", year=""): self.wine = wine self.winery = winery self.grape = grape self.year = year

class wineDialog: """This class is used to show wineDlg""" def __init__(self, wine="", winery="", grape="", year=""): #setup the glade file self.gladefile = "pywine.glade" #setup the wine that we will return self.wine = Wine(wine,winery,grape,year)

def run(self): """This function will show the wineDlg""" #load the dialog from the glade file self.wTree = gtk.glade.XML(self.gladefile, "wineDlg") #Get the actual dialog widget self.dlg = self.wTree.get_widget("wineDlg") #Get all of the Entry Widgets and set their text self.enWine = self.wTree.get_widget("enWine") self.enWine.set_text(self.wine.wine) self.enWinery = self.wTree.get_widget("enWinery") self.enWinery.set_text(self.wine.winery) self.enGrape = self.wTree.get_widget("enGrape") self.enGrape.set_text(self.wine.grape) self.enYear = self.wTree.get_widget("enYear") self.enYear.set_text(self.wine.year) #run the dialog and store the response self.result = self.dlg.run() #get the value of the entry fields self.wine.wine = self.enWine.get_text() self.wine.winery = self.enWinery.get_text() self.wine.grape = self.enGrape.get_text() self.wine.year = self.enYear.get_text() #we are done with the dialog, destroy it self.dlg.destroy() #return the result and the wine return self.result,self.wine

 Run()方法会在一个无穷的主循环里阻塞到它收到一个”response”信号或是销毁. 如果这个对话框是被销毁了, run ()方法会返回一个gtk_RESPONSE_NONE; 否则它返回一个在response信号中的响应id. 在进入这个无穷的主循环之前run ()方法会为你调用对话框的gtk_Widget_show()函数. 注意你仍然需要自己负责显示对话框的子窗口.
   在run()方法运行期间, delete事件的默认行为是被禁止的, 如果对话框收到一个delete的事件, 它并不会像窗口通常那样进行销毁, 这时run()方法会返回一个gtk_RESPONSE_DELETE_EVENT. 而且在run ()方法运行的时候对话框是模态的. 你可以通过调用responese()函数产生一个response信号来强制run ()方法在任何时候退出. 在run()方法运行的时候销毁对话框是很糟糕的主意, 因为你后面的代码无法知道对话框是不是已经销毁了.
   在run()方法返回后, 你需要负责对话框的隐藏和销毁.

  在GTK+中要创建一个树或列表可以使用结合使用GtkTreeModel接口和GtkTreeView物件. 这个物件使用模型/视图/控制器模式设计, 它由以下四个主要部分组成:

树状视图物件(GtkTreeView)
列视图 (GtkTreeViewcolumn)
单元渲染器(GtkCellRenderer等等)
模型接口(GtkTreeModel)

  视图是由前面的三组对象组成, 最后一个是模型. MVC设计模式的一个主要收益是可以使用单个模型创建多个视图. 例如:由文件系统映射的模型(可能由一个文件管理器创建), 可以创建多种视图来显示文件系统的各个部分, 但仅需要在内存中保存一份拷贝

#Here are some variables that can be reused later self.cWine = 0 self.cWinery = 1 self.cGrape = 2 self.cYear = 3 self.sWine = "Wine" self.sWinery = "Winery" self.sGrape = "Grape" self.sYear = "Year" #Get the treeView from the widget Tree self.wineView = self.wTree.get_widget("wineView") #Add all of the List Columns to the wineView self.AddWineListColumn(self.sWine, self.cWine) self.AddWineListColumn(self.sWinery, self.cWinery) self.AddWineListColumn(self.sGrape, self.cGrape) self.AddWineListColumn(self.sYear, self.cYear)

column = gtk.TreeViewColumn(title, gtk.CellRendererText()
, text=columnId)
column.set_resizable(True)
column.set_sort_column_id(columnId)
self.wineView.append_column(column)

#Create the listStore Model to use with the wineView self.wineList = gtk.ListStore(str, str, str, str) #Attatch the model to the treeView self.wineView.set_model(self.wineList)