python實現畫圖工具
阿新 • • 發佈:2020-08-30
簡易畫圖工具(Python),供大家參考,具體內容如下
小黑最近在努力的入門python,正好學習到了Python的tkinker模組下的Canvas(畫布)和Button(按鈕)再加上相應的事務管理,實現了一個簡單的畫圖小工具。
程式程式碼
#畫圖軟體的實現 from tkinter.filedialog import * from tkinter import * from tkinter.colorchooser import * win_width=900 win_height=450 class Application(Frame): def __init__(self,master=None,bgcolor="#000000"): super().__init__(master) self.master=master self.bgcolor=bgcolor self.x=0 self.y=0 self.fgcolor="#ff0000" self.lastDraw=0 #表示最後繪製的圖形的id self.startDrawFlag=False self.pack() self.createWidget() def createWidget(self): # 建立畫板 self.drawCad=Canvas(self,width=win_width,height=win_height*0.9,bg=self.bgcolor) self.drawCad.pack() # 建立按鈕 btn_start = Button(self,text="開始",name="start") btn_start.pack(side="left",padx=10) btn_pen = Button(self,text="畫筆",name="pen") btn_pen.pack(side="left",padx=10) btn_rect = Button(self,text="矩形",name="rect") btn_rect.pack(side="left",padx=10) btn_clear = Button(self,text="清屏",name="clear") btn_clear.pack(side="left",padx=10) btn_earsor = Button(self,text="橡皮擦",name="earsor") btn_earsor.pack(side="left",padx=10) btn_line = Button(self,text="直線",name="line") btn_line.pack(side="left",padx=10) btn_lineArrow = Button(self,text="箭頭直線",name="lineArrow") btn_lineArrow.pack(side="left",padx=10) btn_color = Button(self,text="顏色",name="color") btn_color.pack(side="left",padx=10) #為按鈕繫結事件 btn_pen.bind_class("Button","<1>",self.eventManger) self.drawCad.bind("<ButtonRelease-1>",self.stopDraw) def eventManger(self,event): name=event.widget.winfo_name() print(name) if name=="line" : self.drawCad.bind("<B1-Motion>",self.myline) elif name=="lineArrow": self.drawCad.bind("<B1-Motion>",self.mylineArrow) elif name=="rect": self.drawCad.bind("<B1-Motion>",self.myRect) elif name=="pen": self.drawCad.bind("<B1-Motion>",self.myPen) elif name=="earsor": self.drawCad.bind("<B1-Motion>",self.myEarsor) elif name=="clear": self.drawCad.delete("all") elif name=="color": c= askcolor(color=self.fgcolor,title="畫筆選擇顏色") self.fgcolor=c[1] def myline(self,event): self.startDraw(event) self.lastDraw=self.drawCad.create_line(self.x,self.y,event.x,event.y,fill=self.fgcolor) def mylineArrow(self,event): self.startDraw(event) self.lastDraw = self.drawCad.create_line(self.x,arrow=LAST,fill=self.fgcolor) def myRect(self,event): self.startDraw(event) self.lastDraw = self.drawCad.create_rectangle(self.x,outline=self.fgcolor) def myPen(self,event): self.startDraw(event) self.drawCad.create_rectangle(self.x,outline=self.fgcolor) self.x=event.x self.y=event.y def myEarsor(self,event): self.startDraw(event) self.drawCad.create_rectangle(event.x-4,event.y-4,event.x+4,event.y+4,fill=self.bgcolor) self.x = event.x self.y = event.y def stopDraw(self,event): self.startDrawFlag=False self.lastDraw=0 def startDraw(self,event): self.drawCad.delete(self.lastDraw) if not self.startDrawFlag: self.startDrawFlag = True self.x = event.x self.y = event.y root=Tk() app=Application(root) root.title("簡易的畫圖工具") root.geometry(str(win_width)+"x"+str(win_height)+"+100+100") root.mainloop()
結果展示
以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支援我們。