example4.py

来自「wxPython的基本示例程序」· Python 代码 · 共 93 行

import wx
from example1 import SketchWindow


class SketchFrame(wx.Frame):
    def __init__(self, parent):
        wx.Frame.__init__(self, parent, -1, "Sketch Frame",
                size=(800,600))
        self.sketch = SketchWindow(self, -1)
        self.sketch.Bind(wx.EVT_MOTION, self.OnSketchMotion)
        self.initStatusBar()
        self.createMenuBar()

    def initStatusBar(self):
        self.statusbar = self.CreateStatusBar()
        self.statusbar.SetFieldsCount(3)
        self.statusbar.SetStatusWidths([-1, -2, -3])

    def OnSketchMotion(self, event):
        self.statusbar.SetStatusText("Pos: %s" %
                str(event.GetPositionTuple()), 0)
        self.statusbar.SetStatusText("Current Pts: %s" %
                len(self.sketch.curLine), 1)
        self.statusbar.SetStatusText("Line Count: %s" %
                len(self.sketch.lines), 2)
        event.Skip()

    def menuData(self):
        return [("&File", (
                    ("&New", "New Sketch file", self.OnNew),
                    ("&Open", "Open sketch file", self.OnOpen),
                    ("&Save", "Save sketch file", self.OnSave),
                    ("", "", ""),
                    ("&Color", (
                        ("&Black", "", self.OnColor,
                           wx.ITEM_RADIO),
                        ("&Red", "", self.OnColor,
                           wx.ITEM_RADIO),
                        ("&Green", "", self.OnColor,
                           wx.ITEM_RADIO),
                        ("&Blue", "", self.OnColor,
                           wx.ITEM_RADIO))),
                    ("", "", ""),
                    ("&Quit", "Quit", self.OnCloseWindow)))]

    def createMenuBar(self):
        menuBar = wx.MenuBar()
        for eachMenuData in self.menuData():
            menuLabel = eachMenuData[0]
            menuItems = eachMenuData[1]
            menuBar.Append(self.createMenu(menuItems), menuLabel)
        self.SetMenuBar(menuBar)

    def createMenu(self, menuData):
        menu = wx.Menu()
        for eachItem in menuData:
            if len(eachItem) == 2:
                label = eachItem[0]
                subMenu = self.createMenu(eachItem[1])
                menu.AppendMenu(wx.NewId(), label, subMenu)
            else:
                self.createMenuItem(menu, *eachItem)
        return menu

    def createMenuItem(self, menu, label, status, handler,
                       kind=wx.ITEM_NORMAL):
        if not label:
            menu.AppendSeparator()
            return
        menuItem = menu.Append(-1, label, status, kind)
        self.Bind(wx.EVT_MENU, handler, menuItem)

    def OnNew(self, event): pass
    def OnOpen(self, event): pass
    def OnSave(self, event): pass

    def OnColor(self, event):
        menubar = self.GetMenuBar()
        itemId = event.GetId()
        item = menubar.FindItemById(itemId)
        color = item.GetLabel()
        self.sketch.SetColor(color)

    def OnCloseWindow(self, event):
        self.Destroy()


if __name__ == '__main__':
    app = wx.PySimpleApp()
    frame = SketchFrame(None)
    frame.Show(True)
    app.MainLoop()