135 lines
4.2 KiB
Python
135 lines
4.2 KiB
Python
from kivy.uix.label import Label
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from kivy.core.window import Window
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from kivy.graphics import Color,Rectangle
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class Command_prompt(Label):
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def __init__(self,app,**kwargs):
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# app is used to share information between widgets
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self.app=app
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# insert mode
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self.insert=False
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# cursor position
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self.cursor=0
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self.cursor_width=9
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# the text, with no color information
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self.raw_text=""
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# array of command with arguments
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self.argv=[]
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# init Label
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super(Command_prompt,self).__init__(**kwargs)
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self.keyboard = Window.request_keyboard(None,self,"text")
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self.keyboard.bind(on_textinput=self.on_textinput,on_key_down=self.on_key_down)
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self.draw()
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def draw(self):
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with self.canvas.before:
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# background
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Color(0,0,0)
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Rectangle(pos=self.pos,size=self.size)
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# cursor
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Color(1,1,1)
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Rectangle(pos=(self.pos[0]+self.cursor*self.cursor_width,self.pos[1]),size=(self.cursor_width,self.height))
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# make text under cursor black
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if self.cursor<len(self.raw_text):
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self.text=self.raw_text[:self.cursor]+"[color=000]"+self.raw_text[self.cursor]+"[/color]"+self.raw_text[self.cursor+1:]
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else:
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self.text=self.raw_text
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def on_key_down(self, keyboard, keycode, text, modifiers):
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#print(keycode,text,modifiers)
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if self.insert:
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if keycode[1]=="enter":
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self.insert=False
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self.parse_command()
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self.set_text("")
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elif keycode[1]=="left":
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self.move_cursor_relative(-1)
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elif keycode[1]=="right":
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self.move_cursor_relative(1)
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elif len(modifiers)==1 and modifiers[0]=="ctrl" and text=="a":
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self.move_cursor(1)
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elif len(modifiers)==1 and modifiers[0]=="ctrl" and text=="e":
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self.move_cursor(len(self.raw_text))
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def on_textinput(self,window,text):
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#print(text)
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if self.insert:
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self.append_text_at_cursor(text)
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elif text==':':
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self.append_text_at_cursor(text)
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self.insert=True
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# append to text at position of cursor
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def append_text_at_cursor(self,text):
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if self.cursor==len(self.raw_text):
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self.raw_text+=text
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else:
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self.raw_text=self.raw_text[:self.cursor]+text+self.raw_text[self.cursor:]
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self.cursor+=len(text)
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self.draw()
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# set text in prompt
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def set_text(self,text):
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self.raw_text=text
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self.cursor=len(text)
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self.draw()
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# move cursor n steps to right (left if negative)
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def move_cursor_relative(self,n):
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if n==0 or (n>0 and self.cursor==len(self.raw_text)) or (n<0 and self.cursor==0):
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return
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self.cursor=max(1,min(len(self.raw_text),self.cursor+n))
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self.draw()
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# move cursor to absolute position
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def move_cursor(self,n):
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self.cursor=max(1,min(len(self.raw_text),n))
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self.draw()
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# parse text as argv
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def parse_command(self):
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# init
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self.argv=[""]
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# whether inside quotes
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single_quoted=False
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double_quoted=False
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# whether after '\'
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backslashed=False
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# start after ':'
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# proceed one character at a time
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for i in range(1,len(self.raw_text)):
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char=self.raw_text[i]
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# split argument
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if single_quoted==False and double_quoted==False and backslashed==False and char==' ':
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# new argv
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self.argv.append("")
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# quotes or '\'
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elif double_quoted==False and backslashed==False and char=='\'':
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single_quoted=not single_quoted
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elif single_quoted==False and backslashed==False and char=='"':
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double_quoted=not double_quoted
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elif single_quoted==False and backslashed==False and char=='\\':
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backslashed=True
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# write character
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else:
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self.argv[len(self.argv)-1]+=char
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# reset backslash
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backslashed=False
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