#!/usr/bin/env python
#############################################################################
##
## Copyright (C) 2013 Riverbank Computing Limited.
## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
## All rights reserved.
##
## This file is part of the examples of PyQt.
##
## $QT_BEGIN_LICENSE:BSD$
## You may use this file under the terms of the BSD license as follows:
##
## "Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are
## met:
## * Redistributions of source code must retain the above copyright
## notice, this list of conditions and the following disclaimer.
## * Redistributions in binary form must reproduce the above copyright
## notice, this list of conditions and the following disclaimer in
## the documentation and/or other materials provided with the
## distribution.
## * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
## the names of its contributors may be used to endorse or promote
## products derived from this software without specific prior written
## permission.
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
## $QT_END_LICENSE$
##
#############################################################################
import random
from PyQt5.QtCore import QEvent, QPoint, QPointF, QSize, Qt
from PyQt5.QtGui import QColor, QIcon, QPainter, QPainterPath, QPalette
from PyQt5.QtWidgets import (QApplication, QStyle, QToolButton, QToolTip,
QWidget)
import tooltips_rc
class ShapeItem(object):
def __init__(self):
self.myPath = QPainterPath()
self.myPosition = QPoint()
self.myColor = QColor()
self.myToolTip = ''
def path(self):
return self.myPath
def position(self):
return self.myPosition
def color(self):
return self.myColor
def toolTip(self):
return self.myToolTip
def setPath(self, path):
self.myPath = path
def setToolTip(self, toolTip):
self.myToolTip = toolTip
def setPosition(self, position):
self.myPosition = position
def setColor(self, color):
self.myColor = color
class SortingBox(QWidget):
circle_count = square_count = triangle_count = 1
def __init__(self):
super(SortingBox, self).__init__()
self.circlePath = QPainterPath()
self.squarePath = QPainterPath()
self.trianglePath = QPainterPath()
self.shapeItems = []
self.previousPosition = QPoint()
self.setMouseTracking(True)
self.setBackgroundRole(QPalette.Base)
self.itemInMotion = None
self.newCircleButton = self.createToolButton("New Circle",
QIcon(':/images/circle.png'), self.createNewCircle)
self.newSquareButton = self.createToolButton("New Square",
QIcon(':/images/square.png'), self.createNewSquare)
self.newTriangleButton = self.createToolButton("New Triangle",
QIcon(':/images/triangle.png'), self.createNewTriangle)
self.circlePath.addEllipse(0, 0, 100, 100)
self.squarePath.addRect(0, 0, 100, 100)
x = self.trianglePath.currentPosition().x()
y = self.trianglePath.currentPosition().y()
self.trianglePath.moveTo(x + 120 / 2, y)
self.trianglePath.lineTo(0, 100)
self.trianglePath.lineTo(120, 100)
self.trianglePath.lineTo(x + 120 / 2, y)
self.setWindowTitle("Tooltips")
self.resize(500, 300)
self.createShapeItem(self.circlePath, "Circle",
self.initialItemPosition(self.circlePath),
self.initialItemColor())
self.createShapeItem(self.squarePath, "Square",
self.initialItemPosition(self.squarePath),
self.initialItemColor())
self.createShapeItem(self.trianglePath, "Triangle",
self.initialItemPosition(self.trianglePath),
self.initialItemColor())
def event(self, event):
if event.type() == QEvent.ToolTip:
helpEvent = event
index = self.itemAt(helpEvent.pos())
if index != -1:
QToolTip.showText(helpEvent.globalPos(),
self.shapeItems[index].toolTip())
else:
QToolTip.hideText()
event.ignore()
return True
return super(SortingBox, self).event(event)
def resizeEvent(self, event):
margin = self.style().pixelMetric(QStyle.PM_DefaultTopLevelMargin)
x = self.width() - margin
y = self.height() - margin
y = self.updateButtonGeometry(self.newCircleButton, x, y)
y = self.updateButtonGeometry(self.newSquareButton, x, y)
self.updateButtonGeometry(self.newTriangleButton, x, y)
def paintEvent(self, event):
painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing)
for shapeItem in self.shapeItems:
painter.translate(shapeItem.position())
painter.setBrush(shapeItem.color())
painter.drawPath(shapeItem.path())
painter.translate(-shapeItem.position())
def mousePressEvent(self, event):
if event.button() == Qt.LeftButton:
index = self.itemAt(event.pos())
if index != -1:
self.itemInMotion = self.shapeItems[index]
self.previousPosition = event.pos()
value = self.shapeItems[index]
del self.shapeItems[index]
self.shapeItems.insert(len(self.shapeItems) - 1, value)
self.update()
def mouseMoveEvent(self, event):
if (event.buttons() & Qt.LeftButton) and self.itemInMotion:
self.moveItemTo(event.pos())
def mouseReleaseEvent(self, event):
if (event.button() == Qt.LeftButton) and self.itemInMotion:
self.moveItemTo(event.pos())
self.itemInMotion = None
def createNewCircle(self):
SortingBox.circle_count += 1
self.createShapeItem(self.circlePath,
"Circle <%d>" % SortingBox.circle_count,
self.randomItemPosition(), self.randomItemColor())
def createNewSquare(self):
SortingBox.square_count += 1
self.createShapeItem(self.squarePath,
"Square <%d>" % SortingBox.square_count,
self.randomItemPosition(), self.randomItemColor())
def createNewTriangle(self):
SortingBox.triangle_count += 1
self.createShapeItem(self.trianglePath,
"Triangle <%d>" % SortingBox.triangle_count,
self.randomItemPosition(), self.randomItemColor())
def itemAt(self, pos):
for i in range(len(self.shapeItems) - 1, -1, -1):
item = self.shapeItems[i]
if item.path().contains(QPointF(pos - item.position())):
return i
return -1
def moveItemTo(self, pos):
offset = pos - self.previousPosition
self.itemInMotion.setPosition(self.itemInMotion.position() + offset)
self.previousPosition = QPoint(pos)
self.update()
def updateButtonGeometry(self, button, x, y):
size = button.sizeHint()
button.setGeometry(x - size.width(), y - size.height(),
size.width(), size.height())
return y - size.height() - self.style().pixelMetric(QStyle.PM_DefaultLayoutSpacing)
def createShapeItem(self, path, toolTip, pos, color):
shapeItem = ShapeItem()
shapeItem.setPath(path)
shapeItem.setToolTip(toolTip)
shapeItem.setPosition(pos)
shapeItem.setColor(color)
self.shapeItems.append(shapeItem)
self.update()
def createToolButton(self, toolTip, icon, member):
button = QToolButton(self)
button.setToolTip(toolTip)
button.setIcon(icon)
button.setIconSize(QSize(32, 32))
button.clicked.connect(member)
return button
def initialItemPosition(self, path):
y = (self.height() - path.controlPointRect().height()) / 2
if len(self.shapeItems) == 0:
x = ((3 * self.width()) / 2 - path.controlPointRect().width()) / 2
else:
x = (self.width() / len(self.shapeItems) - path.controlPointRect().width()) / 2
return QPoint(x, y)
def randomItemPosition(self):
x = random.randint(0, self.width() - 120)
y = random.randint(0, self.height() - 120)
return QPoint(x, y)
def initialItemColor(self):
hue = ((len(self.shapeItems) + 1) * 85) % 256
return QColor.fromHsv(hue, 255, 190)
def randomItemColor(self):
return QColor.fromHsv(random.randint(0, 256), 255, 190)
if __name__ == "__main__":
import sys
app = QApplication(sys.argv)
sortingBox = SortingBox()
sortingBox.show()
sys.exit(app.exec_())
