我正在使用Borland C ++ Builder 6.
我想使用TImage组件，只是用特定颜色填充其内容（假设为黑色） - 我该怎么做？
答案 0 :(得分：0)
更具体一点，你的文字有点模糊
很抱歉，我不使用import tkinter as tk
import tkinter.filedialog
import traceback
import tkinter.ttk as ttk
from pygments import lex
from pygments.lexers import PythonLexer
import sys
import os
class TextLineNumbers(tk.Canvas):
def __init__(self, *args, **kwargs):
tk.Canvas.__init__(self, *args, **kwargs)
self.textwidget = None
def attach(self, text_widget):
self.textwidget = text_widget
def redraw(self, *args):
'''redraw line numbers'''
self.delete("all")
i = self.textwidget.index("@0,0")
while True:
dline= self.textwidget.dlineinfo(i)
if dline is None: break
y = dline[1]
linenum = str(i).split(".")[0]
self.create_text(5,y,anchor="nw", text=linenum, font=("Courier", 9))
i = self.textwidget.index("%s+1line" % i)
class CustomText(tk.Text):
def __init__(self, *args, **kwargs):
tk.Text.__init__(self, *args, **kwargs)
self.tk.eval('''
proc widget_proxy {widget widget_command args} {
# call the real tk widget command with the real args
set result [uplevel [linsert $args 0 $widget_command]]
# generate the event for certain types of commands
if {([lindex $args 0] in {insert replace delete}) ||
([lrange $args 0 2] == {mark set insert}) ||
([lrange $args 0 1] == {xview moveto}) ||
([lrange $args 0 1] == {xview scroll}) ||
([lrange $args 0 1] == {yview moveto}) ||
([lrange $args 0 1] == {yview scroll})} {
event generate $widget <<Change>> -when tail
}
# return the result from the real widget command
return $result
}
''')
self.tk.eval('''
rename {widget} _{widget}
interp alias {{}} ::{widget} {{}} widget_proxy {widget} _{widget}
'''.format(widget=str(self)))
self.comment = False
class Arshi(tk.Frame):
def __init__(self, *args, **kwargs):
tk.Frame.__init__(self, *args, **kwargs)
self.fileName = "Untitled Document"
self.content = ""
self.previousContent = ""
self.language = "Python"
self.row = "0"
self.column = "0"
self.startCol = 0
self.notebook = ttk.Notebook(self)
self.menubar()
self.bottomLabel()
self.createtext()
def deafultHighlight(self, argument):
self.content = self.text.get("1.0", tk.END)
self.lines = self.content.split("\n")
if (self.previousContent != self.content):
self.text.mark_set("range_start", self.row + ".0")
data = self.text.get(self.row + ".0", self.row + "." + str(len(self.lines[int(self.row) - 1])))
for token, content in lex(data, PythonLexer()):
self.text.mark_set("range_end", "range_start + %dc" % len(content))
self.text.tag_add(str(token), "range_start", "range_end")
self.text.mark_set("range_start", "range_end")
self.previousContent = self.text.get("1.0", tk.END)
def highlight(self, argument):
self.content = self.text.get("1.0", tk.END)
if (self.previousContent != self.content):
self.text.mark_set("range_start", "1.0")
data = self.text.get("1.0", self.text.index(tk.INSERT))
for token, content in lex(data, PythonLexer()):
self.text.mark_set("range_end", "range_start + %dc" % len(content))
self.text.tag_add(str(token), "range_start", "range_end")
self.text.mark_set("range_start", "range_end")
self.previousContent = self.text.get("1.0", tk.END)
def keypress(self, argument):
self.updateBottomLabel()
self.deafultHighlight("argument")
def configureTags(self, text):
text.tag_configure("Token.Keyword", foreground="#CC7A00")
text.tag_configure("Token.Keyword.Constant", foreground="#CC7A00")
text.tag_configure("Token.Keyword.Declaration", foreground="#CC7A00")
text.tag_configure("Token.Keyword.Namespace", foreground="#CC7A00")
text.tag_configure("Token.Keyword.Pseudo", foreground="#CC7A00")
text.tag_configure("Token.Keyword.Reserved", foreground="#CC7A00")
text.tag_configure("Token.Keyword.Type", foreground="#CC7A00")
text.tag_configure("Token.Name.Class", foreground="#003D99")
text.tag_configure("Token.Name.Exception", foreground="#003D99")
text.tag_configure("Token.Name.Function", foreground="#003D99")
text.tag_configure("Token.Operator.Word", foreground="#CC7A00")
text.tag_configure("Token.Comment", foreground="#B80000")
text.tag_configure("Token.Literal.String", foreground="#248F24")
def createtext(self):
self.notebook.pack(fill=tk.BOTH, expand=True)
self.tab1 = ttk.Frame(self.notebook)
self.text = CustomText(self.tab1, bd=0, font=("Courier", 9))
self.configureTags(self.text)
self.vsb = tk.Scrollbar(self.tab1, orient=tk.VERTICAL)
self.text.configure(yscrollcommand=self.vsb.set)
self.vsb.configure(command=self.text.yview)
self.linenumbers = TextLineNumbers(self.tab1, width=55)
self.linenumbers.attach(self.text)
self.vsb.pack(side=tk.RIGHT, fill=tk.Y)
self.linenumbers.pack(side="left", fill="y")
self.text.pack(side="right", fill="both", expand=True)
self.notebook.add(self.tab1, text=self.fileName)
self.text.bind("<<Change>>", self._on_change)
self.text.bind("<Configure>", self._on_change)
self.text.bind("<KeyRelease>", self.keypress)
self.text.bind("<Button-1>", self.keypress)
def addtab(self):
self.newTab = ttk.Frame(self.notebook)
self.text = CustomText(self.newTab, bd=0, font=("Courier", 9))
self.configureTags(self.text)
self.vsb = tk.Scrollbar(self.newTab, orient=tk.VERTICAL)
self.text.configure(yscrollcommand=self.vsb.set)
self.vsb.configure(command=self.text.yview)
self.linenumbers = TextLineNumbers(self.newTab, width=55)
self.linenumbers.attach(self.text)
self.vsb.pack(side=tk.RIGHT, fill=tk.Y)
self.linenumbers.pack(side="left", fill="y")
self.text.pack(side="right", fill="both", expand=True)
self.notebook.add(self.newTab, text="Untitled Document")
self.text.bind("<<Change>>", self._on_change)
self.text.bind("<Configure>", self._on_change)
self.text.bind("<KeyRelease>", self.keypress)
self.text.bind("<Button-1>", self.keypress)
def removetab(self):
numberOfTabs = self.notebook.index("end")
if numberOfTabs > 1:
tabIndex = self.notebook.index(self.notebook.select())
self.notebook.forget(tabIndex)
def run(self):
pass
def menubar(self):
self.menu = tk.Menu(self)
self.master.config(menu=self.menu)
self.fileMenu = tk.Menu(self.menu, font=("Courier", 9))
self.fileMenu.add_command(label="New Ctrl+N", command=self.newFile)
self.fileMenu.add_command(label="Open Ctrl+O", command=self.openFile)
self.fileMenu.add_command(label="Save Ctrl+S", command=self.saveFile)
self.fileMenu.add_command(label="Save As Ctrl+Shift+S", command=self.saveAsFile)
self.fileMenu.add_separator()
self.fileMenu.add_command(label="New Window", command=self.addtab)
self.fileMenu.add_command(label="Close Window", command=self.removetab)
self.fileMenu.add_separator()
self.fileMenu.add_command(label="Exit Alt+F4", command=self.close)
self.menu.add_cascade(label="File", menu=self.fileMenu)
self.runMenu = tk.Menu(self.menu, font=("Courier", 9))
self.runMenu.add_command(label="Run", command=self.run)
self.menu.add_cascade(label="Run", menu=self.runMenu)
def bottomLabel(self):
self.positionAndLanguage = tk.Label(self, text=" Ln: 1, Col: 0, Lang: Plain", anchor=tk.W, bg="#E7E7E7", font=("Courier New", 8))
self.positionAndLanguage.pack(fill=tk.X, side=tk.BOTTOM)
def updateBottomLabel(self):
self.row = self.text.index(tk.INSERT).split(".")[0]
self.column = self.text.index(tk.INSERT).split(".")[1]
self.positionAndLanguage["text"] = " Ln: {0}, Col: {1}, Lang: {2}".format(self.row, self.column, self.language)
def newFile(self):
self.fileName = "Untitled"
self.previousContent = ""
self.text.delete(0.0, tk.END)
def openFile(self):
try:
self.fileName = tk.filedialog.askopenfilename() #Asks user to open file
with open(self.fileName, 'r') as file:
self.content = file.read() #Reads content typed
self.text.delete(0.0, tk.END)
self.text.insert(0.0, self.content)
self.highlight(self)
except IOError as e:
print("Error reading file.")
except:
print("Unexpected error occured.")
def deleteContent(self, file):
file.seek(0)
file.truncate()
def saveFile(self):
self.content = self.text.get(0.0, tk.END)
try:
with open(self.fileName, 'w') as file:
self.deleteContent(file)
file.write(self.content)
except IOError as e:
print("Error reading file.")
except:
print("Unexpected error occured.")
def saveAsFile(self):
self.content = self.text.get(0.0, tk.END)
try:
self.fileName = tk.filedialog.asksaveasfilename()
if self.fileName != None:
with open(self.fileName, 'w') as file:
file.write(self.content)
except IOError as e:
print("Error reading file.")
except:
print("Unexcepted error occured.")
def close(self):
try:
os._exit(0)
except:
print(sys.exc_info()[0])
def _on_change(self, event):
self.linenumbers.redraw()
if __name__ == "__main__":
root = tk.Tk()
root.title("Arshi")
root.geometry("1024x600")
window = Arshi(root).pack(side="top", fill="both", expand=True)
root.mainloop()
组件，但很可能TImage有TImage，所以您可以使用GDI尝试类似：
Canvasimg->Canvas->Brush->Color=clBlack;
img->Canvas->Brush->Style=bsSolid;
img->Canvas->FillRect(TRect(0,0,img->Width,img->Height));
是您的TImage组件名称img可能存在类似于Update TPanintbox或img->Update();，或将渲染移至不同的事件，例如img->Refresh/Repaint... ...... img->OnPaint拥有ClientWidth,ClientHeight（并非所有组件都有），您也可以使用TImage