eric6/Preferences/ConfigurationPages/IconsPreviewDialog.py

changeset 7521
17974c348101
parent 7360
9190402e4505
child 7780
41420f82c0ac
--- a/eric6/Preferences/ConfigurationPages/IconsPreviewDialog.py	Fri Apr 10 15:18:58 2020 +0200
+++ b/eric6/Preferences/ConfigurationPages/IconsPreviewDialog.py	Fri Apr 10 19:27:51 2020 +0200
@@ -10,9 +10,9 @@
 
 import os.path
 
-from PyQt5.QtGui import QIcon
+from PyQt5.QtCore import pyqtSlot, QDir
+from PyQt5.QtGui import QIcon, QPalette
 from PyQt5.QtWidgets import QListWidgetItem, QDialog
-from PyQt5.QtCore import QDir
 
 from .Ui_IconsPreviewDialog import Ui_IconsPreviewDialog
 
@@ -21,18 +21,69 @@
     """
     Class implementing a dialog to preview the contents of an icon directory.
     """
-    def __init__(self, parent, dirName):
+    def __init__(self, directories, parent=None):
         """
         Constructor
         
-        @param parent parent widget (QWidget)
-        @param dirName name of directory to show (string)
+        @param directories list of directories to be shown
+        @type list of str
+        @param parent parent widget
+        @type QWidget
         """
         super(IconsPreviewDialog, self).__init__(parent)
         self.setupUi(self)
         
+        palette = self.iconView.palette()
+        self.__baseBrush = palette.brush(QPalette.Base)
+        self.__textBrush = palette.brush(QPalette.Text)
+        self.__inverted = False
+        
+        self.directoryCombo.addItems(sorted(directories))
+    
+    @pyqtSlot(str)
+    def on_directoryCombo_currentTextChanged(self, dirName):
+        """
+        Private slot to show the icons of the selected icon directory.
+        
+        @param dirName selected icon directory
+        @type str
+        """
+        self.iconView.clear()
         directory = QDir(dirName)
         for icon in directory.entryList(["*.svg", "*.svgz", "*.png"]):
-            QListWidgetItem(
+            itm = QListWidgetItem(
                 QIcon(os.path.join(dirName, icon)),
                 icon, self.iconView)
+            if self.__inverted:
+                itm.setForeground(self.__baseBrush)
+            else:
+                itm.setForeground(self.__textBrush)
+    
+    @pyqtSlot(bool)
+    def on_invertButton_toggled(self, checked):
+        """
+        Private slot to show the icons on an inverted background.
+        
+        @param checked state of the button
+        @type bool
+        """
+        self.__inverted = checked
+        
+        palette = self.iconView.palette()
+        if self.__inverted:
+            palette.setBrush(QPalette.Base, self.__textBrush)
+            palette.setBrush(QPalette.Text, self.__baseBrush)
+        else:
+            palette.setBrush(QPalette.Base, self.__baseBrush)
+            palette.setBrush(QPalette.Text, self.__textBrush)
+        self.iconView.viewport().setPalette(palette)
+        
+        self.on_refreshButton_clicked()
+    
+    @pyqtSlot()
+    def on_refreshButton_clicked(self):
+        """
+        Private slot to refresh the view.
+        """
+        currentDirectory = self.directoryCombo.currentText()
+        self.on_directoryCombo_currentTextChanged(currentDirectory)

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