wxPython实现画图板

2023-08-08 14:47:05 419

本文实例为大家分享了wxPython画图板展示的具体代码，供大家参考，具体内容如下

#coding:GBK
'''
Createdon2012-3-22
@author:cWX53049
'''
importwx
importtime
frombsddb.test.test_pickleimportcPickle
importos

_formatStr="%Y-%m-%d%H:%M:%S"

classSkethWindow(wx.Window):


def__init__(self,parent,ID):
wx.Window.__init__(self,parent,ID)
self.SetBackgroundColour("White")
self.color="Black"
self.thickness=1
self.pen=wx.Pen(self.color,self.thickness,wx.SOLID)#创建一个pen
self.lines=[]
self.curLine=[]
self.pos=(0,0)
self.InitBuffer()
self.Bind(wx.EVT_LEFT_DOWN,self.OnLeftDown)
self.Bind(wx.EVT_LEFT_UP,self.OnLeftUp)
self.Bind(wx.EVT_MOTION,self.OnMotion)
self.Bind(wx.EVT_SIZE,self.OnSize)
self.Bind(wx.EVT_SIZE,self.OnSize)
self.Bind(wx.EVT_IDLE,self.OnIdle)
self.Bind(wx.EVT_PAINT,self.OnPaint)
defInitBuffer(self):
size=self.GetClientSize()
self.buffer=wx.EmptyBitmap(size.width,size.height)
dc=wx.BufferedDC(None,self.buffer)
dc.SetBackground(wx.Brush(self.GetBackgroundColour()))
dc.Clear()
self.DrawLines(dc)
self.reInitBuffer=False
defGetLinesData(self):
returnself.lines[:]
defSetLinesData(self,lines):
self.lines=lines[:]
self.InitBuffer()
self.Refresh()
defOnLeftDown(self,event):
self.curLine=[]
self.pos=event.GetPositionTuple()#得到鼠标的位置
self.CaptureMouse()#捕获鼠标
defOnLeftUp(self,event):
ifself.HasCapture():
self.lines.append((self.color,
self.thickness,
self.curLine))
self.curLine=[]
self.ReleaseMouse()#释放鼠标
defOnMotion(self,event):
ifevent.Dragging()andevent.LeftIsDown():#确定是否在拖动
dc=wx.BufferedDC(wx.ClientDC(self),self.buffer)#创建另一个
self.drawMotion(dc,event)
event.Skip()
defdrawMotion(self,dc,event):
dc.SetPen(self.pen)
newPos=event.GetPositionTuple()
coords=self.pos+newPos
self.curLine.append(coords)
dc.DrawLine(*coords)
self.pos=newPos
defOnSize(self,event):
self.reInitBuffer=True#处理一个resize事件
defOnIdle(self,event):
ifself.reInitBuffer:
self.InitBuffer()
self.Refresh()
defOnPaint(self,event):
wx.BufferedPaintDC(self,self.buffer)
defDrawLines(self,dc):
forcolur,thickness,lineinself.lines:
pen=wx.Pen(colur,thickness,wx.SOLID)
dc.SetPen(pen)
forcoordsinline:
dc.DrawLine(*coords)
defSetColor(self,color):
self.color=color
self.pen=wx.Pen(self.color,self.thickness,wx.SOLID)
defSetThickness(self,num):
self.thickness=num
self.pen=wx.Pen(self.color,self.thickness,wx.SOLID)


classSkethFrame(wx.Frame):
def__init__(self,parent):
self.title="绘画窗体"
wx.Frame.__init__(self,parent,-1,self.title,size=(500,500))
self.sketh=SkethWindow(self,-1)
self.InitStatusBar()
self.sketh.Bind(wx.EVT_MOTION,self.showPosition)
self.initMenuBar()
self.wildcard="Sketchfile(*.sketch)|Allfiles(*.*)|*.*"
self.fileName=""

defOnNew(self,event):
pass
defOnOpen(self,event):
pass
defOnSave(self,event):
ifnotself.fileName:
self.OnSaveAs(event)
else:
self.SaveFile()

defSaveFile(self):
ifself.fileName:
data=self.sketh.GetLinesData()
f=open(self.fileName,'w')
cPickle.dump(data,f)
f.close()
defOnSaveAs(self,event):
dlf=wx.FileDialog(self,"Sketchfile",os.getcwd(),style=wx.SAVE|wx.OVERWRITE_PROMPT)
ifdlf.ShowModal()==wx.ID_OK:
fileName=dlf.GetPath()
ifnotos.path.splitext(fileName)[1]:
fileName=fileName+'.sketch'
self.fileName=fileName
self.SaveFile()
self.SetTitle(self.title+'--'+self.fileName)
dlf.Destroy()
defOnColor(self,event):
pass
defOnCloseWindow(self,event):
self.Destroy()
defmenuData(self):
return[("&File",(
("&New","NewSketchfile",self.OnNew),
("&Open","opensketchfile",self.OnOpen),
("&Save","savesktechfile",self.OnSave),
("","",""),
("&Color",(
("&Black","",self.OnColor,wx.ITEM_RADIO),
("&Red","",self.OnColor,wx.ITEM_RADIO),
("&Red","",self.OnColor,wx.ITEM_RADIO),
("&Blue","",self.OnColor,wx.ITEM_RADIO))),
("","",""),
("&Quit","quitsketch",self.OnCloseWindow)))]

definitMenuBar(self):
menuBar=wx.MenuBar()
foreachMenuinself.menuData():
eachMenuLabel=eachMenu[0]
eachMenuItems=eachMenu[1]
menuBar.Append(self.createMenu(eachMenuItems),eachMenuLabel)
self.SetMenuBar(menuBar)

defcreateMenu(self,menuData):
menu=wx.Menu()
foreachMenuinmenuData:
iflen(eachMenu)==2:
label=eachMenu[0]
subBar=self.createMenu(eachMenu[1])
menu.AppendMenu(wx.NewId(),label,subBar)
else:
self.createMenuItem(menu,*eachMenu)
returnmenu

defcreateMenuItem(self,menu,label,status,handler,kind=wx.ITEM_NORMAL):
ifnotlabel:
menu.AppendSeparator()
return
menuItem=menu.Append(-1,label,status,kind)
self.Bind(wx.EVT_MENU,handler,menuItem)


defInitStatusBar(self):
self.statusBar=self.CreateStatusBar()
self.statusBar.SetFieldsCount(4)
self.statusBar.SetStatusWidths([-1,-2,-2,-2])
self.timer=wx.Timer(self)
self.Bind(wx.EVT_TIMER,self.updateTime,self.timer)
self.timer.Start(1000)
self.statusBar.SetStatusText("Timeis%s"%time.strftime(_formatStr,time.localtime()),3)
self.statusBar.SetStatusText("Pos(0,0)",1)
self.statusBar.SetStatusText("CurLine0",2)
self.statusBar.SetStatusText("Lines0",3)


defshowPosition(self,event):
self.statusBar.SetStatusText("Pos%s"%str(event.GetPositionTuple()),0)
self.statusBar.SetStatusText("CurLine%s"%len(self.sketh.curLine),1)
self.statusBar.SetStatusText("Lines%s"%len(self.sketh.lines),2)
event.Skip()

defupdateTime(self,event):
self.statusBar.SetStatusText("Timeis%s"%time.strftime(_formatStr,time.localtime()),3)


if__name__=="__main__":
app=wx.PySimpleApp(False)
frame=SkethFrame(None)
frame.Center()
frame.Show(True)
app.MainLoop()

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。

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wxPython实现画图板

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