add scripts of Desbravando o módulo QtCore post

Author: dookgulliver

Post-2(QtCore)/Mp3Downloader.py

@@ -0,0 +1,97 @@
+from PyQt5.QtWidgets import (QWidget, QLineEdit, QPushButton, QSystemTrayIcon
+                            QFileDialog, QFormLayout, QApplication)
+from PyQt5.QtCore import QThread, QRegExp
+import requests
+import sys
+
+
+class DownloaderMusic(QThread):
+    def __init__(self,name,url,path):
+        super(DownloaderMusic,self).__init__()
+        self.path = path
+        self.url = url
+        self.name = name
+
+    def run(self):
+        mescl = self.path+"/"+self.name
+        with open(mescl+'.mp3', 'wb') as f:
+            f.write(requests.get(self.url).content)
+
+
+class Main(QWidget):
+    def __init__(self, parent=None):
+        super(Main, self).__init__()
+        self.path = None
+        self.settings()
+        self.create_widgets()
+        self.create_layout()
+    
+    def settings(self):
+        self.resize(300,120)
+        self.setWindowTitle("Mp3 Downloader")
+
+    def create_widgets(self):
+        self.edit_url = QLineEdit()
+        self.edit_name = QLineEdit()
+        self.btn_select_path = QPushButton("Select path",self)
+        self.btn_select_path.clicked.connect(self.select_path)
+        self.btn_down = QPushButton("Download mp3",self)
+        self.btn_down.clicked.connect(self.download)
+    
+    def create_layout(self):
+        self.layout = QFormLayout()
+        self.layout.addRow("Nome:",self.edit_name)
+        self.layout.addRow("Url:",self.edit_url)
+        self.layout.addRow("Selecionar destino:",self.btn_select_path)
+        self.layout.addRow(self.btn_down)
+        self.setLayout(self.layout)
+    
+    def select_path(self):
+        self.path = QFileDialog.getExistingDirectory(self,"Selecionar Pasta")
+
+    def download(self):
+        if self.verify_fields():
+            self.manage_interface(False)
+            self.thread_qt()
+    
+    def thread_qt(self):
+        url = self.edit_url.text()
+        name = self.edit_name.text()
+        path = self.path
+        self.thre = DownloaderMusic(name, url, path)
+        self.thre.finished.connect(self.downfin)
+        self.thre.start()
+
+    def manage_interface(self,state):
+        self.btn_down.setEnabled(state)
+        self.edit_name.setEnabled(state)
+        self.edit_url.setEnabled(state)
+        self.btn_select_path.setEnabled(state)
+    
+    def verify_fields(self):
+        if self.path == None:
+            return False
+        else:
+            strings = [self.edit_url.text(),self.edit_name.text(), self.path]
+            regex_validate = QRegExp("*.mp3")
+            regex_validate.setPatternSyntax(QRegExp.Wildcard)
+            emptys = 0
+            for string in strings:
+                if len(string.split()) == 0:
+                    emptys+=1
+            if emptys == 0 and regex_validate.exactMatch(self.editUrl.text()):
+                return True
+
+    def downfin(self):
+        self.notifyIcon = QSystemTrayIcon()
+        self.notifyIcon.setVisible(True)
+        self.notifyIcon.showMessage(
+            "Download Finalizado",
+            u"O download da sua música foi realizado com sucesso.",
+            QSystemTrayIcon.Information,3000)
+        self.manageInterface(True)
+
+root = QApplication([])
+app = Main()
+app.show()
+sys.exit(root.exec_())

Post-2(QtCore)/imgs/Thumbs.db

@@ -0,0 +1,34 @@
+from PyQt5.QtWidgets import QWidget, QProgressBar, QApplication
+from PyQt5.QtCore import QBasicTimer
+import sys
+
+
+class Window(QWidget):
+	def __init__(self, parent=None):
+		super(Window, self).__init__()
+		self.set_settings()
+		self.create_widgets()
+
+	def set_settings(self):
+		self.resize(350,200)
+
+	def create_widgets(self):
+		self.progress_bar = QProgressBar(self)
+		self.progress_bar.setFixedWidth(300)
+		self.progress_bar.move(50,80)
+		#timer creating
+		self.timer = QBasicTimer()
+		self.step = 0
+		self.timer.start(100, self)
+
+	def timerEvent(self, e):
+		if self.step >= 100:
+			self.timer.stop()
+
+		self.step += 1
+		self.progress_bar.setValue(self.step)
+
+root = QApplication(sys.argv)
+app = Window()
+app.show()
+sys.exit(root.exec_())