#!/usr/bin/env python ############################################################################ ## ## Copyright (C) 2006-2006 Trolltech ASA. All rights reserved. ## ## This file is part of the example classes of the Qt Toolkit. ## ## Licensees holding a valid Qt License Agreement may use this file in ## accordance with the rights, responsibilities and obligations ## contained therein. Please consult your licensing agreement or ## contact sales@trolltech.com if any conditions of this licensing ## agreement are not clear to you. ## ## Further information about Qt licensing is available at: ## http://www.trolltech.com/products/qt/licensing.html or by ## contacting info@trolltech.com. ## ## This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ## WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ## ############################################################################ from PyQt4 import QtCore, QtGui import dragdroprobot_rc class ColorItem(QtGui.QGraphicsItem): n = 0 def __init__(self): super(ColorItem, self).__init__() self.color = QtGui.QColor(QtCore.qrand() % 256, QtCore.qrand() % 256, QtCore.qrand() % 256) self.setToolTip( "QColor(%d, %d, %d)\nClick and drag this color onto the robot!" % (self.color.red(), self.color.green(), self.color.blue()) ) self.setCursor(QtCore.Qt.OpenHandCursor) def boundingRect(self): return QtCore.QRectF(-15.5, -15.5, 34, 34) def paint(self, painter, option, widget): painter.setPen(QtCore.Qt.NoPen) painter.setBrush(QtCore.Qt.darkGray) painter.drawEllipse(-12, -12, 30, 30) painter.setPen(QtGui.QPen(QtCore.Qt.black, 1)) painter.setBrush(QtGui.QBrush(self.color)) painter.drawEllipse(-15, -15, 30, 30) def mousePressEvent(self, event): if event.button() != QtCore.Qt.LeftButton: event.ignore() return self.setCursor(QtCore.Qt.ClosedHandCursor) def mouseMoveEvent(self, event): if QtCore.QLineF(QtCore.QPointF(event.screenPos()), QtCore.QPointF(event.buttonDownScreenPos(QtCore.Qt.LeftButton))).length() < QtGui.QApplication.startDragDistance(): return drag = QtGui.QDrag(event.widget()) mime = QtCore.QMimeData() drag.setMimeData(mime) ColorItem.n += 1 if ColorItem.n > 2 and QtCore.qrand() % 3 == 0: image = QtGui.QImage(':/images/head.png') mime.setImageData(image) drag.setPixmap(QtGui.QPixmap.fromImage(image).scaled(30,40)) drag.setHotSpot(QtCore.QPoint(15, 30)) else: mime.setColorData(self.color) mime.setText("#%02x%02x%02x" % (self.color.red(), self.color.green(), self.color.blue())) pixmap = QtGui.QPixmap(34, 34) pixmap.fill(QtCore.Qt.white) painter = QtGui.QPainter(pixmap) painter.translate(15, 15) painter.setRenderHint(QtGui.QPainter.Antialiasing) self.paint(painter, None, None) painter.end() pixmap.setMask(pixmap.createHeuristicMask()) drag.setPixmap(pixmap) drag.setHotSpot(QtCore.QPoint(15, 20)) drag.exec_() self.setCursor(QtCore.Qt.OpenHandCursor) def mouseReleaseEvent(self, event): self.setCursor(QtCore.Qt.OpenHandCursor) class RobotPart(QtGui.QGraphicsItem): def __init__(self, parent=None): super(RobotPart, self).__init__(parent) self.color = QtGui.QColor(QtCore.Qt.lightGray) self.pixmap = None self.dragOver = False self.setAcceptDrops(True) def dragEnterEvent(self, event): if event.mimeData().hasColor() or \ (isinstance(self, RobotHead) and event.mimeData().hasImage()): event.setAccepted(True) self.dragOver = True self.update() else: event.setAccepted(False) def dragLeaveEvent(self, event): self.dragOver = False self.update() def dropEvent(self, event): self.dragOver = False if event.mimeData().hasColor(): self.color = QtGui.QColor(event.mimeData().colorData()) elif event.mimeData().hasImage(): self.pixmap = QtGui.QPixmap(event.mimeData().imageData()) self.update() class RobotHead(RobotPart): def boundingRect(self): return QtCore.QRectF(-15, -50, 30, 50) def paint(self, painter, option, widget=None): if not self.pixmap: painter.setBrush(self.dragOver and self.color.light(130) or self.color) painter.drawRoundedRect(-10, -30, 20, 30, 25, 25, QtCore.Qt.RelativeSize) painter.setBrush(QtCore.Qt.white) painter.drawEllipse(-7, -3 - 20, 7, 7) painter.drawEllipse(0, -3 - 20, 7, 7) painter.setBrush(QtCore.Qt.black) painter.drawEllipse(-5, -1 - 20, 2, 2) painter.drawEllipse(2, -1 - 20, 2, 2) painter.setPen(QtGui.QPen(QtCore.Qt.black, 2)) painter.setBrush(QtCore.Qt.NoBrush) painter.drawArc(-6, -2 - 20, 12, 15, 190 * 16, 160 * 16) else: painter.scale(.2272, .2824) painter.drawPixmap(QtCore.QPointF(-15*4.4, -50*3.54), self.pixmap) class RobotTorso(RobotPart): def boundingRect(self): return QtCore.QRectF(-30, -20, 60, 60) def paint(self, painter, option, widget=None): painter.setBrush(self.dragOver and self.color.light(130) or self.color) painter.drawRoundedRect(-20, -20, 40, 60, 25, 25, QtCore.Qt.RelativeSize) painter.drawEllipse(-25, -20, 20, 20) painter.drawEllipse(5, -20, 20, 20) painter.drawEllipse(-20, 22, 20, 20) painter.drawEllipse(0, 22, 20, 20) class RobotLimb(RobotPart): def boundingRect(self): return QtCore.QRectF(-5, -5, 40, 10) def paint(self, painter, option, widget=None): painter.setBrush(self.dragOver and self.color.light(130) or self.color) painter.drawRoundedRect(self.boundingRect(), 50, 50, QtCore.Qt.RelativeSize) painter.drawEllipse(-5, -5, 10, 10) class Robot(RobotPart): def __init__(self): super(Robot, self).__init__() self.torsoItem = RobotTorso(self) self.headItem = RobotHead(self.torsoItem) self.upperLeftArmItem = RobotLimb(self.torsoItem) self.lowerLeftArmItem = RobotLimb(self.upperLeftArmItem) self.upperRightArmItem = RobotLimb(self.torsoItem) self.lowerRightArmItem = RobotLimb(self.upperRightArmItem) self.upperRightLegItem = RobotLimb(self.torsoItem) self.lowerRightLegItem = RobotLimb(self.upperRightLegItem) self.upperLeftLegItem = RobotLimb(self.torsoItem) self.lowerLeftLegItem = RobotLimb(self.upperLeftLegItem) self.timeline = QtCore.QTimeLine() settings = [ # item position rotation at # x y time 0 / 1 ( self.headItem, 0, -18, 20, -20 ), ( self.upperLeftArmItem, -15, -10, 190, 180 ), ( self.lowerLeftArmItem, 30, 0, 50, 10 ), ( self.upperRightArmItem, 15, -10, 300, 310 ), ( self.lowerRightArmItem, 30, 0, 0, -70 ), ( self.upperRightLegItem, 10, 32, 40, 120 ), ( self.lowerRightLegItem, 30, 0, 10, 50 ), ( self.upperLeftLegItem, -10, 32, 150, 80 ), ( self.lowerLeftLegItem, 30, 0, 70, 10 ), ( self.torsoItem, 0, 0, 5, -20 ) ] self.animations = [] for item, pos_x, pos_y, rotation1, rotation2 in settings: item.setPos(pos_x,pos_y) animation = QtGui.QGraphicsItemAnimation() animation.setItem(item) animation.setTimeLine(self.timeline) animation.setRotationAt(0, rotation1) animation.setRotationAt(1, rotation2) self.animations.append(animation) self.animations[0].setScaleAt(1, 1.1, 1.1) self.timeline.setUpdateInterval(1000 / 25) self.timeline.setCurveShape(QtCore.QTimeLine.SineCurve) self.timeline.setLoopCount(0) self.timeline.setDuration(2000) self.timeline.start() def boundingRect(self): return QtCore.QRectF() def paint(self, painter, option, widget=None): pass if __name__== '__main__': import sys import math app = QtGui.QApplication(sys.argv) QtCore.qsrand(QtCore.QTime(0, 0, 0).secsTo(QtCore.QTime.currentTime())) scene = QtGui.QGraphicsScene(-200, -200, 400, 400) for i in range(10): item = ColorItem() angle = i*6.28 / 10.0 item.setPos(math.sin(angle)*150, math.cos(angle)*150) scene.addItem(item) robot = Robot() robot.scale(1.2, 1.2) robot.setPos(0, -20) scene.addItem(robot) view = QtGui.QGraphicsView(scene) view.setRenderHint(QtGui.QPainter.Antialiasing) view.setViewportUpdateMode(QtGui.QGraphicsView.BoundingRectViewportUpdate) view.setBackgroundBrush(QtGui.QColor(230, 200, 167)) view.setWindowTitle("Drag and Drop Robot") view.show() sys.exit(app.exec_())