Progress bar is updated more smoothly.

Issue #1019
 Changes to be committed:
	modified:   persepolis/gui/progress_ui.py
	modified:   persepolis/gui/video_finder_progress_ui.py
	modified:   persepolis/scripts/mainwindow.py
	modified:   persepolis/scripts/progress.py
	modified:   persepolis/scripts/video_finder_progress.py

persepolis/gui/progress_ui.py

@@ -17,18 +17,65 @@
 
 try:
     from PySide6.QtWidgets import QDial, QCheckBox, QProgressBar, QFrame, QComboBox, QWidget, QTabWidget, QVBoxLayout, QHBoxLayout, QPushButton, QLabel
-    from PySide6.QtCore import Qt, QTranslator, QCoreApplication, QLocale, QSize
+    from PySide6.QtCore import Qt, QTranslator, QCoreApplication, QLocale, QSize, QThread, Signal
     from PySide6.QtGui import QIcon
 except:
     from PyQt5.QtWidgets import QDial, QCheckBox, QProgressBar, QFrame, QComboBox, QWidget, QTabWidget, QVBoxLayout, QHBoxLayout, QPushButton, QLabel
-    from PyQt5.QtCore import Qt, QTranslator, QCoreApplication, QLocale, QSize
+    from PyQt5.QtCore import Qt, QTranslator, QCoreApplication, QLocale, QSize, QThread
+    from PyQt5.QtCore import pyqtSignal as Signal
     from PyQt5.QtGui import QIcon
 
 from persepolis.gui import resources
+import time
+
+
+class UpdateProgressBarThread(QThread):
+    UPDATEPROGRESSBAR = Signal(int)
+
+    def __init__(self, parent, new_value):
+        QThread.__init__(self)
+        self.new_value = new_value
+        self.parent = parent
+
+    def run(self):
+        dif = self.new_value - self.parent.value()
+        while self.parent.value() != self.new_value and not (self.parent.finished):
+            if dif < 0:
+                self.UPDATEPROGRESSBAR.emit((self.parent.value() - 1))
+
+                time.sleep(0.5 / (dif * -1))
+            elif dif > 0:
+                self.UPDATEPROGRESSBAR.emit((self.parent.value() + 1))
+                time.sleep(0.5 / dif)
+
+        self.parent.update_lock = False
+
+
+# This widget updated more smoothly than QProgressBar
+class MyProgressBar(QProgressBar):
+    def __init__(self, main_window):
+        super().__init__()
+        self.setValue(0)
+        self.setMaximum(100)
+        self.update_lock = False
+        self.main_window = main_window
+        self.finished = False
+
+    def setValueSmoothly(self, new_value):
+        if self.update_lock:
+            return
+        self.update_lock = True
+        update_progress_bar = UpdateProgressBarThread(self, new_value)
+        update_progress_bar.UPDATEPROGRESSBAR.connect(self.setValueSmoothly2)
+        self.main_window.threadPool.append(update_progress_bar)
+        self.main_window.threadPool[-1].start()
+
+    def setValueSmoothly2(self, value):
+        self.setValue(value)
 
 
 class ProgressWindow_Ui(QWidget):
-    def __init__(self, persepolis_setting):
+    def __init__(self, persepolis_setting, parent):
         super().__init__()
         self.persepolis_setting = persepolis_setting
         icons = ':/' + str(persepolis_setting.value('settings/icons')) + '/'
@@ -163,9 +210,8 @@ def __init__(self, persepolis_setting):
 
         verticalLayout.addWidget(self.progress_tabWidget)
 
-
         # download_progressBar
-        self.download_progressBar = QProgressBar(self)
+        self.download_progressBar = MyProgressBar(parent)
         verticalLayout.addWidget(self.download_progressBar)
         self.download_progressBar.setTextVisible(True)
         # changing the alignment of progress bar

persepolis/gui/video_finder_progress_ui.py

@@ -25,8 +25,8 @@
 
 
 class VideoFinderProgressWindow_Ui(ProgressWindow_Ui):
-    def __init__(self, persepolis_setting):
-        super().__init__(persepolis_setting)
+    def __init__(self, persepolis_setting, parent):
+        super().__init__(persepolis_setting, parent)
 
         # status_tab
         self.status_tab = QWidget()

persepolis/scripts/mainwindow.py

@@ -1917,7 +1917,7 @@ def checkDownloadInfo(self, list):
                     value = int(value[:-1])
                 except:
                     value = 0
-                progress_window.download_progressBar.setValue(value)
+                progress_window.download_progressBar.setValueSmoothly(value)
 
                 # status
                 progress_window.status = str(download_status_dict['status'])
@@ -5416,7 +5416,11 @@ def addLinkSpiderCallBack(self, spider_dict, child):
 
         if file_size:
             file_size = 'Size: ' + str(file_size)
-            child.size_label.setText(file_size)
+            if child.size_label.text() == 'None' or child.size_label.text() == '':
+                child.size_label.setText(file_size)
+            else:
+                # It's updated before! dont change it.
+                return
 
         if file_name and not (child.change_name_checkBox.isChecked()):
             child.change_name_lineEdit.setText(file_name)

persepolis/scripts/progress.py

@@ -45,7 +45,7 @@ def run(self):
 
 class ProgressWindow(ProgressWindow_Ui):
     def __init__(self, parent, gid, persepolis_setting):
-        super().__init__(persepolis_setting)
+        super().__init__(persepolis_setting, parent)
         self.persepolis_setting = persepolis_setting
         self.main_window = parent
         self.gid = gid

persepolis/scripts/video_finder_progress.py

@@ -44,7 +44,7 @@ def run(self):
 
 class VideoFinderProgressWindow(VideoFinderProgressWindow_Ui):
     def __init__(self, parent, gid_list, persepolis_setting):
-        super().__init__(persepolis_setting)
+        super().__init__(persepolis_setting, parent)
         self.persepolis_setting = persepolis_setting
         self.main_window = parent