基于Python制作一款屏幕顏色提取器
更新時間：2022年03月02日 10:54:07 作者：slandarer
這篇文章主要為大家介紹了如何利用Python制作一款簡易的屏幕顏色提取器，文中的示例代碼講解詳細，對我們學習Python有一定幫助，感興趣的可以動手試一試
1.使用效果
如下面動圖所示，點擊取色按鈕后，將鼠標移動到想要取色的位置，等待兩秒即可取色：
點擊save color按鈕可以將顏色存儲到color library區(qū)域，同時如圖所示，
! ! ! !紅框內所有的方形元件其實都是按鈕，點擊后能獲得顏色信息 ! ! ! !
信息格式為：(173, 189, 163) #ADBDA3 (48, 35, 189)
2.所需python包
- PySide2
- pyautogui
- pyperclip
- ctypes
from PySide2.QtWidgets import QApplication,QWidget,QLineEdit
from PySide2.QtWidgets import QLabel,QPushButton
from PySide2.QtGui import QIcon,QFont
from PySide2.QtCore import Qt
import sys
sys.path.append("...")
import time
import pyautogui as pag
import pyperclip
from ctypes import *
3.python小技巧
3.1控件數組
和matlab一樣，python得控件也能構成數組，例如我在創(chuàng)建小顏色框時，是這么寫的：
# 存儲顏色框
for i in range(0,2):
for j in range(0,10):
storeColorBox=QPushButton(self)
storeColorBox.setGeometry((0.04+0.093*j)*Width,(0.475+0.07*i)*Height,0.08*Width,0.06*Height)
storeColorBox.setStyleSheet(self.SS_Color_Box)
storeColorBox.setProperty("storeId",i*10+j)
storeColorBox.setProperty("Color",'#FFFFFF')
storeColorBox.clicked.connect(self.selectedStore)
self.storeList.append(storeColorBox)
就是將各個顏色框存入了self.storeList這個數組，
想要例如想要調用第i個顏色框，就可以這么寫：
storeBox=self.storeList[i]
3.2將控件作為屬性
將控件控件作為屬性賦給另一個控件
因為我們想要點擊左側標簽時獲得對應文本框內信息：
就可以這么寫（舉個例子）：
# 創(chuàng)建文本框
self.CB1=QLineEdit(self)
self.CB1.setText("255,255,255")
self.CB1.move(0.62*Width,0.03*Height)
self.CB1.resize(0.35*Width,0.065*Height)
self.CB1.setFont(qf)
self.CB1.setStyleSheet(self.SS_Inf_Box)
# 創(chuàng)建標簽
self.CL1=QPushButton(self)
self.CL1.setGeometry(0.448*Width,0.025*Height,0.14*Width,0.075*Height)
self.CL1.setStyleSheet(self.SS_Inf_Label)
self.CL1.setText("RGB")
self.CL1.setFont(qf)
self.CL1.setProperty('Children',self.CB1) # 把控件作為屬性
self.CL1.clicked.connect(self.copyInf)# 與回調函數相連
然后我的回調函數是這樣寫的：
def copyInf(self):
infLabel=self.sender()
infBox=infLabel.property('Children') # 通過找到屬性找到對應控件
pyperclip.copy(infBox.text())
3.3怎樣重設控件顏色
還是通過setStyleSheet設置嗷，不過把字符串部分應該放顏色的部分換成了要重設的顏色：
self.mainBox.setStyleSheet("QPushButton{background:"+self.curColor_HEX
+";border: 3px solid rgb(150,150,150);border-radius:8px}")
3.4一些用到的字符串操作
字符串字母大寫
STR=STR.upper()
字符串去掉空格
例如把(10, 50, 255)變?yōu)?10,50,255)
STR=STR.replace(" ", "")
字符串去掉兩頭括號
例如把(10,50,255)變?yōu)?0,50,255
STR=STR[1:-1]
3.5鼠標位置像素顏色
如何獲得當前鼠標位置像素顏色
import pyautogui as pag
from ctypes import *
x,y=pag.position()
RGB=get_color(x,y)
# 獲取x,y位置像素顏色
def get_color(x, y):
gdi32 = windll.gdi32
user32 = windll.user32
hdc = user32.GetDC(None) # 獲取顏色值
pixel = gdi32.GetPixel(hdc, x, y) # 提取RGB值
r = pixel & 0x0000ff
g = (pixel & 0x00ff00) >> 8
b = pixel >> 16
return [r, g, b]
3.6窗口始終置頂
self.setWindowFlags(Qt.WindowStaysOnTopHint)
3.7文本框不允許編輯但允許復制
用setFocusPolicy(Qt.NoFocus)，例如程序中：
self.CB1.setFocusPolicy(Qt.NoFocus) self.CB2.setFocusPolicy(Qt.NoFocus) self.CB3.setFocusPolicy(Qt.NoFocus)
4.完整代碼
from PySide2.QtWidgets import QApplication,QWidget,QLineEdit
from PySide2.QtWidgets import QLabel,QPushButton
from PySide2.QtGui import QIcon,QFont
from PySide2.QtCore import Qt
import sys
sys.path.append("...")
import time
import pyautogui as pag
import pyperclip
from ctypes import *
# ===========================================================================================
# 相關函數：
# 獲取x,y位置像素顏色
def get_color(x, y):
gdi32 = windll.gdi32
user32 = windll.user32
hdc = user32.GetDC(None) # 獲取顏色值
pixel = gdi32.GetPixel(hdc, x, y) # 提取RGB值
r = pixel & 0x0000ff
g = (pixel & 0x00ff00) >> 8
b = pixel >> 16
return [r, g, b]
# HEX轉RGB
def hex2rgb(hexcolor):
'''HEX轉RGB
:param hexcolor: int or str
:return: Tuple[int, int, int]
>>> hex2rgb(16777215)
(255, 255, 255)
>>> hex2rgb('0xffffff')
(255, 255, 255)
'''
hexcolor = int(hexcolor, base=16) if isinstance(hexcolor, str) else hexcolor
rgb = ((hexcolor >> 16) & 0xff, (hexcolor >> 8) & 0xff, hexcolor & 0xff)
return rgb
# RGB轉HEX
def rgb2hex(r, g, b):
color = "#"
color += str(hex(r)).replace('x','0')[-2:]
color += str(hex(g)).replace('x','0')[-2:]
color += str(hex(b)).replace('x','0')[-2:]
return color
# RGB轉HSV
def rgb2hsv(r, g, b):
r, g, b = r/255.0, g/255.0, b/255.0
mx = max(r, g, b)
mn = min(r, g, b)
m = mx-mn
if mx == mn:
h = 0
elif mx == r:
if g >= b:
h = ((g-b)/m)*60
else:
h = ((g-b)/m)*60 + 360
elif mx == g:
h = ((b-r)/m)*60 + 120
elif mx == b:
h = ((r-g)/m)*60 + 240
if mx == 0:
s = 0
else:
s = m/mx
v = mx
H = h / 2
S = s * 255.0
V = v * 255.0
return (round(H), round(S), round(V))
# ===========================================================================================
# 窗口類：
class Window(QWidget):
def __init__(self,Width=450,Height=600):
super().__init__()
self.setWindowTitle("getScreenColor")
self.setWindowFlags(Qt.WindowStaysOnTopHint)
self.Width=Width
self.Height=Height
# 樣式表
self.SS_bkg_Label="QLabel{background: rgb(220,220,220);color:rgb(62,62,62);border-radius:8px}"
self.SS_Inf_Label="QPushButton{background: rgb(79,148,204);color:rgb(240,240,240);border-radius:8px}"
self.SS_Inf_Box="QLineEdit{border-radius:3px;border: 2px solid rgb(149,179,215);color:rgb(92,92,92)}"
self.SS_Main_Box="QPushButton{background: #FFFFFF;border: 3px solid rgb(150,150,150);border-radius:8px}"
self.SS_Color_Box="QPushButton{background: #FFFFFF;border: 2px solid rgb(150,150,150);border-radius:3px}"
self.SS_btn_1="QPushButton{background: rgb(214,219,233);color:rgb(82,82,82)}"
self.SS_btn_2="QPushButton{background: rgb(225,235,205);color:rgb(82,82,82)}"
self.SS_btn_3="QPushButton{background: rgb(232,191,190);color:rgb(82,82,82)}"
# 該類私有變量或屬性
self.defaultColor=['#58827E','#144853','#4C6756','#849E77','#ADBDA3',
'#6B1B1E','#A94047','#E05E60','#F8A2AF','#E4CEDB',
'#B0A087','#7F877C','#C7C7BB','#D4C7BE','#E3E4DF',
'#C63866','#FE676E','#FD8F52','#FFBF73','#FFDCA2',
'#7292B8','#769EB8','#B4C5D7','#C5D5EC','#D9E0EA',
'#681F71','#7E0D5D','#6E57A5','#B589BE','#C993B7',
'#3978A4','#81AAAE','#EBCFC4','#FDB8A8','#E3929B','#7D7294']
self.curBoxId=0
self.curColor_RGB=[255,255,255]
self.curColor_HEX='#FFFFFF'
self.curColor_HSV=[0,0,255]
self.storeList=[]
self.defaultList=[]
# 框架構造函數調用
self.setSize()
self.partition()
self.setInfBox()
self.setMainBox()
self.setBtn()
self.setIcon()
self.setColorBox()
# ================================================================================================
# 顏色框回調函數部分：
def selectedMain(self):
tColor_HEX=self.curColor_HEX
tColor_RGB=hex2rgb('0x'+tColor_HEX[1:])
tColor_HSV=rgb2hsv(tColor_RGB[0], tColor_RGB[1], tColor_RGB[2])
pyperclip.copy(str(tColor_RGB)+' '+tColor_HEX+' '+str(tColor_HSV))
print(str(tColor_RGB)+' '+tColor_HEX+' '+str(tColor_HSV))
def selectedStore(self):
storeBox=self.sender()
tColor_HEX=storeBox.property("Color")
tColor_RGB=hex2rgb('0x'+tColor_HEX[1:])
tColor_HSV=rgb2hsv(tColor_RGB[0], tColor_RGB[1], tColor_RGB[2])
pyperclip.copy(str(tColor_RGB)+' '+tColor_HEX+' '+str(tColor_HSV))
print(str(tColor_RGB)+' '+tColor_HEX+' '+str(tColor_HSV))
def selectedDefault(self):
defaultBox=self.sender()
tNum=defaultBox.property("defaultId")
tColor_HEX=self.defaultColor[tNum]
tColor_RGB=hex2rgb('0x'+tColor_HEX[1:])
tColor_HSV=rgb2hsv(tColor_RGB[0], tColor_RGB[1], tColor_RGB[2])
pyperclip.copy(str(tColor_RGB)+' '+tColor_HEX+' '+str(tColor_HSV))
print(str(tColor_RGB)+' '+tColor_HEX+' '+str(tColor_HSV))
# ------------------------------------------------------------------------------------------------
# 顏色信息標簽回調
def copyInf(self):
infLabel=self.sender()
infBox=infLabel.property('Children')
pyperclip.copy(infBox.text())
print(infBox.text())
# ------------------------------------------------------------------------------------------------
# 按鈕回調函數部分：
def getColor(self):
time.sleep(2)
x,y=pag.position()
self.curColor_RGB=get_color(x,y)
self.curColor_HSV=rgb2hsv(self.curColor_RGB[0], self.curColor_RGB[1], self.curColor_RGB[2])
self.curColor_HEX=rgb2hex(self.curColor_RGB[0], self.curColor_RGB[1], self.curColor_RGB[2]).upper()
RGB_STR=str(self.curColor_RGB).replace(" ", "")[1:-1]
HSV_STR=str(self.curColor_HSV).replace(" ", "")[1:-1]
self.CB1.setText(RGB_STR)
self.CB2.setText(self.curColor_HEX)
self.CB3.setText(HSV_STR)
self.mainBox.setStyleSheet("QPushButton{background:"+self.curColor_HEX
+";border: 3px solid rgb(150,150,150);border-radius:8px}")
def saveColor(self):
if self.curBoxId<20:
tempBox=self.storeList[self.curBoxId]
tempBox.setProperty("Color",self.curColor_HEX)
tempBox.setStyleSheet("QPushButton{background:"+self.curColor_HEX
+";border: 2px solid rgb(150,150,150);border-radius:3px}")
self.curBoxId+=1
def deleteColor(self):
if self.curBoxId>0:
self.curBoxId-=1
tempBox=self.storeList[self.curBoxId]
tempBox.setProperty("Color",'#FFFFFF')
tempBox.setStyleSheet(self.SS_Color_Box)
# ================================================================================================
# 框架構造函數部分：
def setSize(self):# 調整框架大小
self.setGeometry(80,80,self.Width,self.Height)
self.setMaximumSize(self.Width,self.Height)
self.setMinimumSize(self.Width,self.Height)
def setIcon(self):# 設置圖標
appIcon=QIcon("ICON.ico")
self.setWindowIcon(appIcon)
def partition(self):# 各部分劃分
Width=self.Width
Height=self.Height
qf=QFont()
qf.setBold(True)
qf.setPointSize(12)
qf.setFamily("Cambria")
# --part1--當前顏色顯示框背景-----
self.bkgLabel1=QLabel(self)
self.bkgLabel1.setGeometry(0.024*Width,0.015*Height,0.4*Width,0.3*Height)
self.bkgLabel1.setStyleSheet(self.SS_bkg_Label)
# --part2--當前顏色信息背景-----
self.bkgLabel2=QLabel(self)
self.bkgLabel2.setGeometry(0.448*Width,0.015*Height,0.528*Width,0.3*Height)
self.bkgLabel2.setStyleSheet("QLabel{background: rgb(235,235,235);border-radius:8px}")
# --part3--顏色存儲庫背景-----
self.bkgLabel3=QLabel(self)
self.bkgLabel3.setGeometry(0.024*Width,0.41*Height,0.952*Width,0.205*Height)
self.bkgLabel3.setStyleSheet(self.SS_bkg_Label)
self.bkgLabel3_title=QLabel(self)
self.bkgLabel3_title.setGeometry(0.038*Width,0.415*Height,0.4*Width,0.05*Height)
self.bkgLabel3_title.setStyleSheet(self.SS_bkg_Label)
self.bkgLabel3_title.setText("Color Library")
self.bkgLabel3_title.setFont(qf)
# --part4--預設顏色庫背景-----
self.bkgLabel4=QLabel(self)
self.bkgLabel4.setGeometry(0.024*Width,0.63*Height,0.952*Width,0.355*Height)
self.bkgLabel4.setStyleSheet(self.SS_bkg_Label)
self.bkgLabel4_title=QLabel(self)
self.bkgLabel4_title.setGeometry(0.038*Width,0.635*Height,0.8*Width,0.05*Height)
self.bkgLabel4_title.setStyleSheet(self.SS_bkg_Label)
self.bkgLabel4_title.setText("Color Library(default)")
self.bkgLabel4_title.setFont(qf)
def setInfBox(self):# 設置信息顯示框
Width=self.Width
Height=self.Height
# 字體設置
qf=QFont()
qf.setBold(True)
qf.setPointSize(12)
qf.setFamily("Cambria")
# 繪制顏色信息框
qf.setPointSize(10)
self.CB1=QLineEdit(self)
self.CB1.setText("255,255,255")
self.CB1.move(0.62*Width,0.03*Height)
self.CB1.resize(0.35*Width,0.065*Height)
self.CB1.setFont(qf)
self.CB1.setStyleSheet(self.SS_Inf_Box)
#
self.CB2=QLineEdit(self)
self.CB2.setText("#FFFFFF")
self.CB2.move(0.62*Width,0.13*Height)
self.CB2.resize(0.35*Width,0.065*Height)
self.CB2.setFont(qf)
self.CB2.setStyleSheet(self.SS_Inf_Box)
#
self.CB3=QLineEdit(self)
self.CB3.setText("0,0,255")
self.CB3.move(0.62*Width,0.23*Height)
self.CB3.resize(0.35*Width,0.065*Height)
self.CB3.setFont(qf)
self.CB3.setStyleSheet(self.SS_Inf_Box)
#
self.CB1.setFocusPolicy(Qt.NoFocus)
self.CB2.setFocusPolicy(Qt.NoFocus)
self.CB3.setFocusPolicy(Qt.NoFocus)
# 繪制顏色信息標簽
self.CL1=QPushButton(self)
self.CL1.setGeometry(0.448*Width,0.025*Height,0.14*Width,0.075*Height)
self.CL1.setStyleSheet(self.SS_Inf_Label)
self.CL1.setText("RGB")
self.CL1.setFont(qf)
self.CL1.setProperty('Children',self.CB1)
self.CL1.clicked.connect(self.copyInf)
#
self.CL2=QPushButton(self)
self.CL2.setGeometry(0.448*Width,0.125*Height,0.14*Width,0.075*Height)
self.CL2.setStyleSheet(self.SS_Inf_Label)
self.CL2.setText("HEX")
self.CL2.setFont(qf)
self.CL2.setProperty('Children',self.CB2)
self.CL2.clicked.connect(self.copyInf)
#
self.CL3=QPushButton(self)
self.CL3.setGeometry(0.448*Width,0.225*Height,0.14*Width,0.075*Height)
self.CL3.setStyleSheet(self.SS_Inf_Label)
self.CL3.setText("HSV")
self.CL3.setFont(qf)
self.CL3.setProperty('Children',self.CB3)
self.CL3.clicked.connect(self.copyInf)
def setMainBox(self):# 設置其他label
Width=self.Width
Height=self.Height
# 左上角當前顏色顯示框
self.mainBox=QPushButton(self)
self.mainBox.setGeometry(0.04*Width,0.025*Height,0.368*Width,0.28*Height)
self.mainBox.setStyleSheet(self.SS_Main_Box)
self.mainBox.clicked.connect(self.selectedMain)
def setBtn(self):# 設置按鈕
Width=self.Width
Height=self.Height
# 按鈕字體
qf=QFont()
qf.setBold(True)
qf.setPointSize(10)
qf.setFamily("Cambria")
# 獲取顏色按鈕
self.bnt1=QPushButton(self)
self.bnt1.setGeometry(0.024*Width,0.33*Height,0.4*Width,0.06*Height)
self.bnt1.setStyleSheet(self.SS_btn_1)
self.bnt1.setText("Get Screen Color")
self.bnt1.setFont(qf)
self.bnt1.clicked.connect(self.getColor)
# 保存顏色按鈕
self.bnt2=QPushButton(self)
self.bnt2.setGeometry(0.444*Width,0.33*Height,0.26*Width,0.06*Height)
self.bnt2.setStyleSheet(self.SS_btn_1)
self.bnt2.setText("Save Color")
self.bnt2.setFont(qf)
self.bnt2.clicked.connect(self.saveColor)
# 刪除顏色按鈕
self.bnt3=QPushButton(self)
self.bnt3.setGeometry(0.724*Width,0.33*Height,0.26*Width,0.06*Height)
self.bnt3.setStyleSheet(self.SS_btn_3)
self.bnt3.setText("Delete Last")
self.bnt3.setFont(qf)
self.bnt3.clicked.connect(self.deleteColor)
def setColorBox(self):# 繪制存儲顏色及預設顏色框
Width=self.Width
Height=self.Height
# 存儲顏色框
for i in range(0,2):
for j in range(0,10):
storeColorBox=QPushButton(self)
storeColorBox.setGeometry((0.04+0.093*j)*Width,(0.475+0.07*i)*Height,0.08*Width,0.06*Height)
storeColorBox.setStyleSheet(self.SS_Color_Box)
storeColorBox.setProperty("storeId",i*10+j)
storeColorBox.setProperty("Color",'#FFFFFF')
storeColorBox.clicked.connect(self.selectedStore)
self.storeList.append(storeColorBox)
# 預設顏色框
for i in range(0,4):
for j in range(0,10):
if i*10+j<36:
defaultColorBox=QPushButton(self)
defaultColorBox.setGeometry((0.04+0.093*j)*Width,(0.7+0.07*i)*Height,0.08*Width,0.06*Height)
defaultColorBox.setStyleSheet("QPushButton{background: "
+self.defaultColor[i*10+j]+";border: 2px solid rgb(150,150,150);border-radius:3px}")
defaultColorBox.setProperty("defaultId",i*10+j)
defaultColorBox.clicked.connect(self.selectedDefault)
self.defaultList.append(storeColorBox)
# ===========================================================================================
# 函數調用：
myapp = QApplication(sys.argv)
window = Window()
window.show()
sys.exit(myapp.exec_())
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