--- a/E4Gui/E4Led.py Tue Jan 12 18:39:15 2010 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,268 +0,0 @@
-# -*- coding: utf-8 -*-
-
-# Copyright (c) 2006 - 2010 Detlev Offenbach <detlev@die-offenbachs.de>
-#
-
-"""
-Module implementing a LED widget.
-
-It was inspired by KLed.
-"""
-
-from PyQt4.QtGui import *
-from PyQt4.QtCore import *
-
-E4LedRectangular = 0
-E4LedCircular = 1
-
-class E4Led(QWidget):
- """
- Class implementing a LED widget.
- """
- def __init__(self, parent = None, color = None, shape = E4LedCircular, rectRatio = 1):
- """
- Constructor
-
- @param parent reference to parent widget (QWidget)
- @param color color of the LED (QColor)
- @param shape shape of the LED (E4LedCircular, E4LedRectangular)
- @param rectRation ratio width to height, if shape is rectangular (float)
- """
- QWidget.__init__(self, parent)
-
- if color is None:
- color = QColor("green")
-
- self.__led_on = True
- self.__dark_factor = 300
- self.__offcolor = color.dark(self.__dark_factor)
- self.__led_color = color
- self.__framedLed = True
- self.__shape = shape
- self.__rectRatio = rectRatio
-
- self.setColor(color)
-
- def paintEvent(self, evt):
- """
- Protected slot handling the paint event.
-
- @param evt paint event object (QPaintEvent)
- @exception TypeError The E4Led has an unsupported shape type.
- """
- if self.__shape == E4LedCircular:
- self.__paintRound()
- elif self.__shape == E4LedRectangular:
- self.__paintRectangular()
- else:
- raise TypeError("Unsupported shape type for E4Led.")
-
- def __getBestRoundSize(self):
- """
- Private method to calculate the width of the LED.
-
- @return new width of the LED (integer)
- """
- width = min(self.width(), self.height())
- width -= 2 # leave one pixel border
- return width > -1 and width or 0
-
- def __paintRound(self):
- """
- Private method to paint a round raised LED.
- """
- # Initialize coordinates, width and height of the LED
- width = self.__getBestRoundSize()
-
- # Calculate the gradient for the LED
- wh = width / 2
- color = self.__led_on and self.__led_color or self.__offcolor
- gradient = QRadialGradient(wh, wh, wh, 0.8 * wh, 0.8 * wh)
- gradient.setColorAt(0.0, color.light(200))
- gradient.setColorAt(0.6, color)
- if self.__framedLed:
- gradient.setColorAt(0.9, color.dark())
- gradient.setColorAt(1.0, self.palette().color(QPalette.Dark))
- else:
- gradient.setColorAt(1.0, color.dark())
-
- # now do the drawing
- paint = QPainter(self)
- paint.setRenderHint(QPainter.Antialiasing, True)
- paint.setBrush(QBrush(gradient))
- paint.setPen(Qt.NoPen)
- paint.drawEllipse(1, 1, width, width)
- paint.end()
-
- def __paintRectangular(self):
- """
- Private method to paint a rectangular raised LED.
- """
- # Initialize coordinates, width and height of the LED
- width = self.height() * self.__rectRatio
- left = max(0, int((self.width() - width) / 2) - 1)
- right = min(int((self.width() + width) / 2), self.width())
- height = self.height()
-
- # now do the drawing
- painter = QPainter(self)
- painter.setRenderHint(QPainter.Antialiasing, True)
- color = self.__led_on and self.__led_color or self.__offcolor
-
- painter.setPen(color.light(200))
- painter.drawLine(left, 0, left, height - 1)
- painter.drawLine(left + 1, 0, right - 1, 0)
- if self.__framedLed:
- painter.setPen(self.palette().color(QPalette.Dark))
- else:
- painter.setPen(color.dark())
- painter.drawLine(left + 1, height - 1, right - 1, height - 1)
- painter.drawLine(right - 1, 1, right - 1, height - 1)
- painter.fillRect(left + 1, 1, right - 2, height - 2, QBrush(color))
- painter.end()
-
- def isOn(self):
- """
- Public method to return the LED state.
-
- @return flag indicating the light state (boolean)
- """
- return self.__led_on
-
- def shape(self):
- """
- Public method to return the LED shape.
-
- @return LED shape (E4LedCircular, E4LedRectangular)
- """
- return self.__shape
-
- def ratio(self):
- """
- Public method to return the LED rectangular ratio (width / height).
-
- @return LED rectangular ratio (float)
- """
- return self.__rectRatio
-
- def color(self):
- """
- Public method to return the LED color.
-
- @return color of the LED (QColor)
- """
- return self.__led_color
-
- def setOn(self, state):
- """
- Public method to set the LED to on.
-
- @param state new state of the LED (boolean)
- """
- if self.__led_on != state:
- self.__led_on = state
- self.update()
-
- def setShape(self, shape):
- """
- Public method to set the LED shape.
-
- @param shape new LED shape (E4LedCircular, E4LedRectangular)
- """
- if self.__shape != shape:
- self.__shape = shape
- self.update()
-
- def setRatio(self, ratio):
- """
- Public method to set the LED rectangular ratio (width / height).
-
- @param ratio new LED rectangular ratio (float)
- """
- if self.__rectRatio != ratio:
- self.__rectRatio = ratio
- self.update()
-
- def setColor(self, color):
- """
- Public method to set the LED color.
-
- @param color color for the LED (QColor)
- """
- if self.__led_color != color:
- self.__led_color = color
- self.__offcolor = color.dark(self.__dark_factor)
- self.update()
-
- def setDarkFactor(self, darkfactor):
- """
- Public method to set the dark factor.
-
- @param darkfactor value to set for the dark factor (integer)
- """
- if self.__dark_factor != darkfactor:
- self.__dark_factor = darkfactor
- self.__offcolor = self.__led_color.dark(darkfactor)
- self.update()
-
- def darkFactor(self):
- """
- Public method to return the dark factor.
-
- @return the current dark factor (integer)
- """
- return self.__dark_factor
-
- def toggle(self):
- """
- Public slot to toggle the LED state.
- """
- self.setOn(not self.__led_on)
-
- def on(self):
- """
- Public slot to set the LED to on.
- """
- self.setOn(True)
-
- def off(self):
- """
- Public slot to set the LED to off.
- """
- self.setOn(False)
-
- def setFramed(self, framed):
- """
- Public slot to set the __framedLed attribute.
-
- @param framed flag indicating the framed state (boolean)
- """
- if self.__framedLed != framed:
- self.__framedLed = framed
- self.__off_map = None
- self.__on_map = None
- self.update()
-
- def isFramed(self):
- """
- Public method to return the framed state.
-
- @return flag indicating the current framed state (boolean)
- """
- return self.__framedLed
-
- def sizeHint(self):
- """
- Public method to give a hint about our desired size.
-
- @return size hint (QSize)
- """
- return QSize(18, 18)
-
- def minimumSizeHint(self):
- """
- Public method to give a hint about our minimum size.
-
- @return size hint (QSize)
- """
- return QSize(18, 18)
