Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Helpviewer/GreaseMonkey/GreaseMonkeyConfiguration/GreaseMonkeyConfigurationListWidget.py	Sun Jul 22 15:32:52 2012 +0200
@@ -0,0 +1,75 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2012 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a special list widget for GreaseMonkey scripts.
+"""
+
+from PyQt4.QtCore import pyqtSignal, QRect
+from PyQt4.QtGui import QListWidget, QListWidgetItem
+
+from .GreaseMonkeyConfigurationListDelegate import GreaseMonkeyConfigurationListDelegate
+
+
+class GreaseMonkeyConfigurationListWidget(QListWidget):
+    """
+    Class implementing a special list widget for GreaseMonkey scripts.
+    """
+    removeItemRequested = pyqtSignal(QListWidgetItem)
+    
+    def __init__(self, parent=None):
+        """
+        Constructor
+        
+        @param parent reference to the parent widget (QWidget)
+        """
+        super().__init__(parent)
+        
+        self.__delegate = GreaseMonkeyConfigurationListDelegate(self)
+        self.setItemDelegate(self.__delegate)
+    
+    def __containsRemoveIcon(self, pos):
+        """
+        Private method to check, if the given position is inside the remove icon.
+        
+        @param pos position to check for (QPoint)
+        @return flag indicating success (boolean)
+        """
+        itm = self.itemAt(pos)
+        if itm is None:
+            return False
+        
+        rect = self.visualItemRect(itm)
+        iconSize = GreaseMonkeyConfigurationListDelegate.RemoveIconSize
+        removeIconXPos = rect.right() - self.__delegate.padding() - iconSize
+        center = rect.height() // 2 + rect.top()
+        removeIconYPos = center - iconSize // 2
+        
+        removeIconRect = QRect(removeIconXPos, removeIconYPos, iconSize, iconSize)
+        return removeIconRect.contains(pos)
+    
+    def mousePressEvent(self, evt):
+        """
+        Private method handling presses of mouse buttons.
+        
+        @param evt mouse press event (QMouseEvent)
+        """
+        if self.__containsRemoveIcon(evt.pos()):
+            self.removeItemRequested.emit(self.itemAt(evt.pos()))
+            return
+        
+        super().mousePressEvent(evt)
+    
+    def mouseDoubleClickEvent(self, evt):
+        """
+        Private method handling mouse double click events.
+        
+        @param evt mouse press event (QMouseEvent)
+        """
+        if self.__containsRemoveIcon(evt.pos()):
+            self.removeItemRequested.emit(self.itemAt(evt.pos()))
+            return
+        
+        super().mouseDoubleClickEvent(evt)