twoFacesOnePage.py

# Form implementation generated from reading ui file '.\twoFacesOnePage.ui'
#
# Created by: PyQt6 UI code generator 6.4.2
#
# WARNING: Any manual changes made to this file will be lost when pyuic6 is
# run again.  Do not edit this file unless you know what you are doing.
'''
Requeriments.txt
PyPdf2==3.0.1
pyqt6==6.5.1
pyqt6-tools==6.4.2.3.3
'''
'''
Esta aplicación te permite combinar dos archivos PDF escaneados en uno solo, de forma rápida y sencilla. 
Solo tienes que cargar un archivo con las páginas impares y otro con las páginas pares en orden inverso, y la aplicación generará automáticamente 
un PDF de salida ordenado correctamente.
LeoCroms@2023
'''
from PyQt6.QtWidgets import QMainWindow, QApplication
import sys
import os,time
import PyPDF2
import subprocess
import winsound
from PyQt6 import QtCore, QtGui, QtWidgets

class MainWidget(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setObjectName("MainWindowT")
        self.resize(640, 350)
        self.setAcceptDrops(True)
        self.setMinimumSize(QtCore.QSize(640, 350))
        font = QtGui.QFont()
        font.setPointSize(10)
        font.setBold(True)
        self.setFont(font)
        self.centralwidget = QtWidgets.QWidget(parent=self)
        self.centralwidget.setObjectName("centralwidget")
        self.gridLayout_2 = QtWidgets.QGridLayout(self.centralwidget)
        self.gridLayout_2.setObjectName("gridLayout_2")
        self.gridLayout = QtWidgets.QGridLayout()
        self.gridLayout.setObjectName("gridLayout")
        self.imparButton = QtWidgets.QPushButton(parent=self.centralwidget)
        font = QtGui.QFont()
        font.setPointSize(10)
        font.setBold(True)
        self.imparButton.setFont(font)
        self.imparButton.setObjectName("imparButton")
        self.gridLayout.addWidget(self.imparButton, 0, 0, 1, 1)
        self.imparFile = QtWidgets.QLineEdit(parent=self.centralwidget)
        self.imparFile.setText("")
        self.imparFile.setObjectName("imparFile")
        self.gridLayout.addWidget(self.imparFile, 0, 1, 1, 1)
        self.parButton = QtWidgets.QPushButton(parent=self.centralwidget)
        font = QtGui.QFont()
        font.setFamily("Segoe UI")
        font.setPointSize(10)
        font.setBold(True)
        self.parButton.setFont(font)
        self.parButton.setObjectName("parButton")
        self.gridLayout.addWidget(self.parButton, 0, 2, 1, 1)
        self.parFile = QtWidgets.QLineEdit(parent=self.centralwidget)
        self.parFile.setObjectName("parFile")
        self.gridLayout.addWidget(self.parFile, 0, 3, 1, 1)
        self.OutputButton = QtWidgets.QPushButton(parent=self.centralwidget)
        self.OutputButton.setObjectName("OutputButton")
        self.gridLayout.addWidget(self.OutputButton, 2, 0, 1, 1)
        self.outFile = QtWidgets.QLineEdit(parent=self.centralwidget)
        self.outFile.setObjectName("outFile")
        self.gridLayout.addWidget(self.outFile, 2, 1, 1, 3)
        self.startButton = QtWidgets.QPushButton(parent=self.centralwidget)
        font = QtGui.QFont()
        font.setPointSize(10)
        font.setBold(True)
        self.startButton.setFont(font)
        self.startButton.setObjectName("startButton")
        self.gridLayout.addWidget(self.startButton, 3, 0, 1, 1)
        self.progressBar = QtWidgets.QProgressBar(parent=self.centralwidget)
        font = QtGui.QFont()
        font.setPointSize(10)
        font.setBold(True)
        self.progressBar.setFont(font)
        self.progressBar.setProperty("value", 0)
        self.progressBar.setObjectName("progressBar")
        self.gridLayout.addWidget(self.progressBar, 3, 1, 1, 3)
        self.listWidget = QtWidgets.QListWidget(parent=self.centralwidget)
        font = QtGui.QFont()
        font.setPointSize(10)
        font.setBold(True)
        self.listWidget.setFont(font)
        self.listWidget.setObjectName("listWidget")
        self.gridLayout.addWidget(self.listWidget, 1, 0, 1, 4)
        self.gridLayout_2.addLayout(self.gridLayout, 0, 0, 1, 1)
        self.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(parent=self)
        self.menubar.setEnabled(True)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 640, 23))
        font = QtGui.QFont()
        font.setPointSize(10)
        font.setBold(True)
        self.menubar.setFont(font)
        self.menubar.setAutoFillBackground(False)
        self.menubar.setObjectName("menubar")
        self.menuAbout = QtWidgets.QMenu(parent=self.menubar)
        self.menuAbout.setGeometry(QtCore.QRect(269, 128, 274, 72))
        font = QtGui.QFont()
        font.setPointSize(10)
        font.setBold(True)
        self.menuAbout.setFont(font)
        self.menuAbout.setToolTip("")
        self.menuAbout.setObjectName("menuAbout")
        self.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(parent=self)
        self.statusbar.setObjectName("statusbar")
        self.setStatusBar(self.statusbar)
        self.actionTwoFacesOnePage_LeoCroms2023 = QtGui.QAction(parent=self)
        self.actionTwoFacesOnePage_LeoCroms2023.setObjectName("actionTwoFacesOnePage_LeoCroms2023")
        self.menuAbout.addAction(self.actionTwoFacesOnePage_LeoCroms2023)
        self.menubar.addAction(self.menuAbout.menuAction())

        self.retranslateUi(self)
        self.imparFile.editingFinished.connect(self.imparFile_edit) # type: ignore
        self.parFile.editingFinished.connect(self.parFile_edit) # type: ignore
        self.outFile.editingFinished.connect(self.outFile_edit) # type: ignore
        self.imparButton.clicked.connect(self.imparButton_click) # type: ignore
        self.parButton.clicked.connect(self.parButton_click) # type: ignore
        self.OutputButton.clicked.connect(self.OutputButton_click) # type: ignore
        self.startButton.clicked.connect(self.startButton_click) # type: ignore
        self.startButton.setEnabled(False)
        global checkImpar
        global checkPar
        global checkDir
        checkImpar = False
        checkPar = False
        checkDir = False
        QtCore.QMetaObject.connectSlotsByName(self)

    def retranslateUi(self, MainWindowT):
        _translate = QtCore.QCoreApplication.translate
        self.setWindowTitle (_translate("MainWindowT", "TwoFacesOnePage"))
        self.imparButton.setToolTip(_translate("MainWindowT", "Selecciona el fichero pdf con la pagina impares"))
        self.imparButton.setText(_translate("MainWindowT", "Impar File"))
        self.imparFile.setToolTip(_translate("MainWindowT", "Pdf con las paginas impares"))
        self.parButton.setToolTip(_translate("MainWindowT", "Selecciona el fichero pdf con la pagina pares en orden inverso"))
        self.parButton.setText(_translate("MainWindowT", "Par File"))
        self.parFile.setToolTip(_translate("MainWindowT", "Pdf con las paginas pares en orden inverso"))
        self.OutputButton.setToolTip(_translate("MainWindowT", "Selecciona la carpeta de destino para el nuevo fichero pdf combinado"))
        self.OutputButton.setText(_translate("MainWindowT", "Output Dir"))
        self.outFile.setToolTip(_translate("MainWindowT", "Carpeta de destino"))
        self.startButton.setToolTip(_translate("MainWindowT", "GoGoGooo"))
        self.startButton.setText(_translate("MainWindowT", "Start"))
        self.menubar.setToolTip(_translate("MainWindowT", "Acerca de ..."))
        self.menuAbout.setTitle(_translate("MainWindowT", "About"))
        self.actionTwoFacesOnePage_LeoCroms2023.setText(_translate("MainWindowT", "TwoFacesOnePage@LeoCroms2023"))

    def imparButton_click(self):
        global imparfilename
        global checkImpar
        global checkPar
        global checkDir
        imparfilename = QtWidgets.QFileDialog.getOpenFileName(None,'Selecciona Fichero con las paginas impares',None,("Pdf Files (*.pdf)"))
        imparfilename=imparfilename[0]
        if imparfilename != "" :
            
            imparbasename= os.path.split(imparfilename)
            self.imparFile.setText(imparfilename)
            self.listWidget.addItem(f"El fichero con las paginas impares es {imparbasename[1]}")
            self.listWidget.scrollToBottom()
            checkImpar=True
            self.progressBar.setProperty("value", 0)
            if ((checkImpar and checkPar and checkDir)==True): self.startButton.setEnabled(True)

        else:
            self.imparFile.setText(imparfilename)
            self.listWidget.addItem("No se ha seleccionado ningun fichero")
            self.listWidget.scrollToBottom()
            winsound.PlaySound("SystemExit", winsound.SND_ALIAS)
            checkImpar=False
            self.startButton.setEnabled(False)
            self.progressBar.setProperty("value", 0)
      
    
    def parButton_click(self):
        global parfilename
        global checkImpar
        global checkPar
        global checkDir
        parfilename= QtWidgets.QFileDialog.getOpenFileName(None,'Selecciona Fichero con las paginas pares',None,("Pdf Files (*.pdf)"))
        parfilename=parfilename[0]
        if parfilename!="":
            

            parbasename=os.path.split(parfilename)
            self.parFile.setText(parfilename)
            self.listWidget.addItem(f"El fichero con las paginas pares es {parbasename[1]}")
            self.listWidget.scrollToBottom()
            checkPar= True
            self.progressBar.setProperty("value", 0)
            if (checkImpar==True and checkPar == True and checkDir==True): self.startButton.setEnabled(True)
        else:
            self.parFile.setText(parfilename)
            self.listWidget.addItem("No se ha seleccionado ningun fichero")
            self.listWidget.scrollToBottom()
            winsound.PlaySound("SystemExit", winsound.SND_ALIAS)
            checkPar=False
            self.startButton.setEnabled(False)
            self.progressBar.setProperty("value", 0)


        

    def OutputButton_click(self):
         global dirname
         global checkImpar
         global checkPar
         global checkDir
         dirname = QtWidgets.QFileDialog.getExistingDirectory(None,'Selecciona Directorio Destino')
         if dirname!="": 
            self.outFile.setText(dirname)
            self.listWidget.scrollToBottom()
            checkDir=True
            if (checkImpar==True and checkPar == True and checkDir==True): self.startButton.setEnabled(True)
            self.progressBar.setProperty("value", 0)
        
         else:
            self.outFile.setText(dirname)
            self.listWidget.addItem("No se ha seleccionado directorio de destino")
            self.listWidget.scrollToBottom()
            winsound.PlaySound("SystemExit", winsound.SND_ALIAS)
            checkDir=False
            self.startButton.setEnabled(False)
            self.progressBar.setProperty("value", 0)


        

    def startButton_click(self):
        try:  
            pdf_file1 = open(self.imparFile.text(),'rb')
            pdf_file2 = open(self.parFile.text(),'rb')
            imparPdfFile=PyPDF2.PdfReader(pdf_file1)
            parPdfFile=PyPDF2.PdfReader(pdf_file2)
            finalPdfFile=PyPDF2.PdfWriter()
            dateTime=time.strftime("%Y%M%d%H%M%S")
            output_pdf=os.path.join(dirname,dateTime+"finalOutputScan.pdf")
            totalPagImpar=len(imparPdfFile.pages)
            totalPagPar=len(parPdfFile.pages)
            if (totalPagImpar==totalPagPar): 
                totalPages=totalPagPar
                for xx in range(totalPages):
                        self.progressBar.setValue(int((xx+1)*100/totalPages))
                        finalPdfFile.add_page(imparPdfFile.pages[xx])
                        finalPdfFile.add_page(parPdfFile.pages[-(xx+1)])

                with open(output_pdf, "wb") as fp:
                    finalPdfFile.write(fp)
                self.listWidget.addItem("Operacion realizada")
                self.listWidget.scrollToBottom()
                subprocess.Popen(output_pdf,shell=True)    
            else:
                self.listWidget.addItem("Error numero de paginas no se corresponde")
                self.listWidget.addItem("los ficheros de entrada deben tener el mismo numero de paginas")           
                self.listWidget.scrollToBottom()
        except:
            self.listWidget.addItem("Error desconocido")           
            self.listWidget.scrollToBottom()
            winsound.PlaySound("SystemExit", winsound.SND_ALIAS)

            
                
        
    
    def imparFile_edit(self):
        global checkImpar
        global checkPar
        global checkDir
        if os.path.exists(self.imparFile.text())==True:
            imparfilename=self.imparFile.text()
            self.listWidget.addItem(f"El fichero con las paginas impares es:  {self.imparFile.text()}")
            self.listWidget.scrollToBottom()
            checkImpar=True
            self.progressBar.setProperty("value", 0)
            if ((checkImpar and checkPar and checkDir)==True): self.startButton.setEnabled(True)
        else:
            self.listWidget.addItem("Error el fichero no existe")
            self.listWidget.scrollToBottom()
            winsound.PlaySound("SystemExit", winsound.SND_ALIAS)
            checkImpar=False
            self.startButton.setEnabled(False)
            self.progressBar.setProperty("value", 0)
      

        pass
    
    def parFile_edit(self):
         
         #global dirname
        global checkImpar
        global checkPar
        global checkDir



        if os.path.exists(self.parFile.text())==True:
            parfilename=self.parFile.text()
            self.listWidget.addItem(f"El fichero con las paginas pares es: {self.parFile.text()}")
            self.listWidget.scrollToBottom()
            checkPar= True
            self.progressBar.setProperty("value", 0)
            if (checkImpar==True and checkPar == True and checkDir==True): self.startButton.setEnabled(True)
        else:
            self.listWidget.addItem("Error el fichero no existe")
            self.listWidget.scrollToBottom()
            winsound.PlaySound("SystemExit", winsound.SND_ALIAS)
            checkPar=False
            self.startButton.setEnabled(False)
            self.progressBar.setProperty("value", 0)


        

    def outFile_edit(self):
        if os.path.isdir(self.outFile.text()):
            dirname=self.outFile.text()
            self.listWidget.addItem(self.outFile.text())
            self.listWidget.scrollToBottom()
            checkDir=True
            if (checkImpar==True and checkPar == True and checkDir==True): self.startButton.setEnabled(True)
            self.progressBar.setProperty("value", 0)
        
        else:
            self.listWidget.addItem("Error, el directorio no existe")
            self.listWidget.scrollToBottom()
            winsound.PlaySound("SystemExit", winsound.SND_ALIAS)
            checkDir=False
            self.startButton.setEnabled(False)
            self.progressBar.setProperty("value", 0)



    
    def dragEnterEvent(self, event):
        if event.mimeData().hasUrls():
           
            event.accept()
        else:
            event.ignore()

    def dropEvent(self, event):
        
        global checkImpar
        global checkPar
        global checkDir
        global parfilename
        global imparfilename
        
        files = [u.toLocalFile() for u in event.mimeData().urls()]
        
        for f in files:
            #print(f,os.path.getctime(f))
            if (checkImpar==False):
                imparbasename= os.path.split(f)
                #print (imparbasename)
                #print (imparbasename[0],imparbasename[1])
                imparfilename=f
                self.imparFile.setText(imparfilename)
                self.listWidget.addItem(f"El fichero con las paginas impares es {imparbasename[1]}")
                self.listWidget.scrollToBottom()
                checkImpar=True
                self.progressBar.setProperty("value", 0)
               

            elif (checkPar==False):
                parbasename=os.path.split(f)
                parfilename=f
                self.parFile.setText(parfilename)
                self.listWidget.addItem(f"El fichero con las paginas pares es {parbasename[1]}")
                self.listWidget.scrollToBottom()
                checkPar= True
                self.progressBar.setProperty("value", 0)
               
            if ((checkImpar and checkPar)==True):
                if (os.path.getctime(imparfilename)>(os.path.getctime(parfilename))):
                    self.imparFile.setText(parfilename)
                    self.parFile.setText(imparfilename)
                    self.listWidget.addItem(f"Correccion automatica, ficheros de entrada intercambiados")
                    self.listWidget.scrollToBottom()



            

        if ((checkImpar and checkPar and checkDir)==True): self.startButton.setEnabled(True)



if __name__ == '__main__':
    app = QApplication(sys.argv)
    ui = MainWidget()
    ui.show()
    sys.exit(app.exec())