Added text alignment option

core.py

@@ -26,7 +26,7 @@ class Core():
       except:
         return "avconv"
 
-  def drawBaseImage(self, backgroundImage, titleText, titleFont):
+  def drawBaseImage(self, backgroundImage, titleText, titleFont, alignment):
 
     if self._image == None or not self.lastBackgroundImage == backgroundImage:
       self.lastBackgroundImage = backgroundImage
@@ -49,7 +49,13 @@ class Core():
     painter.setFont(font)
     painter.setPen(QColor(255, 255, 255))
 
-    painter.drawText(70, 375, titleText)
+    fm = QtGui.QFontMetrics(font)
+    if alignment == "Left":
+        painter.drawText(70, 375, titleText)
+    if alignment == "Middle":
+        painter.drawText(1280/2 - fm.width(titleText)/2, 375, titleText)
+    if alignment == "Right":
+        painter.drawText(1210 - fm.width(titleText), 375, titleText)
     painter.end()
 
     buffer = QtCore.QBuffer()

main.py

@@ -14,7 +14,7 @@ import preview_thread, core, video_thread
 
 class Main(QtCore.QObject):
 
-  newTask = QtCore.pyqtSignal(str, str, QFont)
+  newTask = QtCore.pyqtSignal(str, str, QFont, str)
   processTask = QtCore.pyqtSignal()
   videoTask = QtCore.pyqtSignal(str, str, QFont, str, str)
 
@@ -49,6 +49,7 @@ class Main(QtCore.QObject):
 
     window.fontComboBox.currentFontChanged.connect(self.drawPreview)
     window.lineEdit_title.textChanged.connect(self.drawPreview)
+    window.alignmentComboBox.currentIndexChanged.connect(self.drawPreview)
 
     window.progressBar_create.setValue(0)
     window.setWindowTitle("Audio Visualizer")
@@ -56,12 +57,17 @@ class Main(QtCore.QObject):
     window.pushButton_selectOutput.setText("Select Output Video File")
     window.pushButton_selectBackground.setText("Select Background Image")
     window.label_font.setText("Title Font")
+    window.label_alignment.setText("Alignment")
     window.label_title.setText("Title Text")
     window.pushButton_createVideo.setText("Create Video")
     window.groupBox_create.setTitle("Create")
     window.groupBox_settings.setTitle("Settings")
     window.groupBox_preview.setTitle("Preview")
 
+    window.alignmentComboBox.addItem("Left");
+    window.alignmentComboBox.addItem("Middle");
+    window.alignmentComboBox.addItem("Right");
+
     titleFont = self.settings.value("titleFont")
     if not titleFont == None: 
       window.fontComboBox.setCurrentFont(QFont(titleFont))
@@ -136,7 +142,8 @@ class Main(QtCore.QObject):
   def drawPreview(self):
     self.newTask.emit(self.window.label_background.text(),
       self.window.lineEdit_title.text(),
-      self.window.fontComboBox.currentFont())
+      self.window.fontComboBox.currentFont(),
+      self.window.alignmentComboBox.currentText())
     # self.processTask.emit()
 
   def showPreviewImage(self, image):

main.ui

@@ -171,6 +171,41 @@
              </item>
             </layout>
            </item>
+           <item>
+            <layout class="QHBoxLayout" name="horizontalLayout_5">
+             <item>
+              <widget class="QLabel" name="label_alignment">
+               <property name="minimumSize">
+                <size>
+                 <width>200</width>
+                 <height>0</height>
+                </size>
+               </property>
+               <property name="maximumSize">
+                <size>
+                 <width>200</width>
+                 <height>16777215</height>
+                </size>
+               </property>
+               <property name="baseSize">
+                <size>
+                 <width>200</width>
+                 <height>0</height>
+                </size>
+               </property>
+               <property name="frameShape">
+                <enum>QFrame::NoFrame</enum>
+               </property>
+               <property name="text">
+                <string/>
+               </property>
+              </widget>
+             </item>
+             <item>
+              <widget class="QComboBox" name="alignmentComboBox"/>
+             </item>
+            </layout>
+           </item>
            <item>
             <layout class="QHBoxLayout" name="horizontalLayout_6">
              <item>

preview_thread.py

@@ -19,13 +19,14 @@ class Worker(QtCore.QObject):
     self.queue = queue
 
 
-  @pyqtSlot(str, str, QtGui.QFont)
-  def createPreviewImage(self, backgroundImage, titleText, titleFont):
+  @pyqtSlot(str, str, QtGui.QFont, str)
+  def createPreviewImage(self, backgroundImage, titleText, titleFont, alignment):
     # print('worker thread id: {}'.format(QtCore.QThread.currentThreadId()))
     dic = {
       "backgroundImage": backgroundImage,
       "titleText": titleText,
-      "titleFont": titleFont
+      "titleFont": titleFont,
+      "alignment": alignment
     }
     self.queue.put(dic)
 
@@ -42,7 +43,8 @@ class Worker(QtCore.QObject):
       im = self.core.drawBaseImage(
         nextPreviewInformation["backgroundImage"],
         nextPreviewInformation["titleText"],
-        nextPreviewInformation["titleFont"])
+        nextPreviewInformation["titleFont"],
+        nextPreviewInformation["alignment"])
 
       spectrum = numpy.fromfunction(lambda x: 0.008*(x-128)**2, (255,), dtype="int16")