Don't grow window when track title too long

Use an elided text box, set wrapping and max height for label.

Fixes #26

app/musicmuster.py

@@ -10,11 +10,13 @@ from datetime import datetime, timedelta
 from log import DEBUG, EXCEPTION
 
 from PyQt5.QtCore import Qt, QTimer
+from PyQt5.QtGui import QFontMetrics, QPainter
 from PyQt5.QtWidgets import (
     QApplication,
     QDialog,
     QFileDialog,
     QInputDialog,
+    QLabel,
     QListWidgetItem,
     QMainWindow,
 )
@@ -32,6 +34,21 @@ from ui.dlg_SelectPlaylist_ui import Ui_dlgSelectPlaylist
 from ui.main_window_ui import Ui_MainWindow
 
 
+class ElideLabel(QLabel):
+    """
+    From https://stackoverflow.com/questions/11446478/
+    pyside-pyqt-truncate-text-in-qlabel-based-on-minimumsize
+    """
+
+    def paintEvent(self, event):
+        painter = QPainter(self)
+
+        metrics = QFontMetrics(self.font())
+        elided = metrics.elidedText(self.text(), Qt.ElideRight, self.width())
+
+        painter.drawText(self.rect(), self.alignment(), elided)
+
+
 class Window(QMainWindow, Ui_MainWindow):
     def __init__(self, parent=None):
         super().__init__(parent)

app/ui/main_window.ui

@@ -149,6 +149,9 @@ border: 1px solid rgb(85, 87, 83);</string>
           <property name="text">
            <string/>
           </property>
+          <property name="wordWrap">
+           <bool>true</bool>
+          </property>
          </widget>
         </item>
         <item>
@@ -166,10 +169,25 @@ border: 1px solid rgb(85, 87, 83);</string>
           <property name="text">
            <string/>
           </property>
+          <property name="wordWrap">
+           <bool>true</bool>
+          </property>
          </widget>
         </item>
         <item>
-         <widget class="QLabel" name="hdrNextTrack">
+         <widget class="ElideLabel" name="hdrNextTrack">
+          <property name="minimumSize">
+           <size>
+            <width>0</width>
+            <height>39</height>
+           </size>
+          </property>
+          <property name="maximumSize">
+           <size>
+            <width>16777215</width>
+            <height>39</height>
+           </size>
+          </property>
           <property name="font">
            <font>
             <family>Sans</family>
@@ -183,6 +201,9 @@ border: 1px solid rgb(85, 87, 83);</string>
           <property name="text">
            <string/>
           </property>
+          <property name="wordWrap">
+           <bool>true</bool>
+          </property>
          </widget>
         </item>
        </layout>
@@ -984,6 +1005,13 @@ border: 1px solid rgb(85, 87, 83);</string>
    </property>
   </action>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>ElideLabel</class>
+   <extends>QLabel</extends>
+   <header>musicmuster</header>
+  </customwidget>
+ </customwidgets>
  <resources>
   <include location="icons.qrc"/>
  </resources>

app/ui/main_window_ui.py

@@ -85,6 +85,7 @@ class Ui_MainWindow(object):
         self.hdrPreviousTrack.setStyleSheet("background-color: #f8d7da;\n"
 "border: 1px solid rgb(85, 87, 83);")
         self.hdrPreviousTrack.setText("")
+        self.hdrPreviousTrack.setWordWrap(True)
         self.hdrPreviousTrack.setObjectName("hdrPreviousTrack")
         self.verticalLayout.addWidget(self.hdrPreviousTrack)
         self.hdrCurrentTrack = QtWidgets.QLabel(self.centralwidget)
@@ -95,9 +96,12 @@ class Ui_MainWindow(object):
         self.hdrCurrentTrack.setStyleSheet("background-color: #d4edda;\n"
 "border: 1px solid rgb(85, 87, 83);")
         self.hdrCurrentTrack.setText("")
+        self.hdrCurrentTrack.setWordWrap(True)
         self.hdrCurrentTrack.setObjectName("hdrCurrentTrack")
         self.verticalLayout.addWidget(self.hdrCurrentTrack)
-        self.hdrNextTrack = QtWidgets.QLabel(self.centralwidget)
+        self.hdrNextTrack = ElideLabel(self.centralwidget)
+        self.hdrNextTrack.setMinimumSize(QtCore.QSize(0, 39))
+        self.hdrNextTrack.setMaximumSize(QtCore.QSize(16777215, 39))
         font = QtGui.QFont()
         font.setFamily("Sans")
         font.setPointSize(20)
@@ -105,6 +109,7 @@ class Ui_MainWindow(object):
         self.hdrNextTrack.setStyleSheet("background-color: #fff3cd;\n"
 "border: 1px solid rgb(85, 87, 83);")
         self.hdrNextTrack.setText("")
+        self.hdrNextTrack.setWordWrap(True)
         self.hdrNextTrack.setObjectName("hdrNextTrack")
         self.verticalLayout.addWidget(self.hdrNextTrack)
         self.horizontalLayout_3.addLayout(self.verticalLayout)
@@ -540,4 +545,5 @@ class Ui_MainWindow(object):
         self.actionSelect_previous_track.setShortcut(_translate("MainWindow", "K"))
         self.actionSelect_played_tracks.setText(_translate("MainWindow", "Select played tracks"))
         self.actionSelect_unplayed_tracks.setText(_translate("MainWindow", "Select unplayed tracks"))
+from musicmuster import ElideLabel
 import icons_rc