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