1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
|
#!/usr/bin/env python
"""PyQt4 port of the demos/embeddeddialogs example from Qt v4.x"""
# This is only needed for Python v2 but is harmless for Python v3.
import sip
sip.setapi('QString', 2)
from PyQt4 import QtCore, QtGui
from embeddeddialog import Ui_embeddedDialog
from embeddeddialogs_rc import *
class CustomProxy(QtGui.QGraphicsProxyWidget):
def __init__(self, parent=None, wFlags=0):
super(CustomProxy, self).__init__(parent, wFlags)
self.popupShown = False
self.timeLine = QtCore.QTimeLine(250, self)
self.timeLine.valueChanged.connect(self.updateStep)
self.timeLine.stateChanged.connect(self.stateChanged)
def boundingRect(self):
return QtGui.QGraphicsProxyWidget.boundingRect(self).adjusted(0, 0, 10, 10)
def paintWindowFrame(self, painter, option, widget):
color = QtGui.QColor(0, 0, 0, 64)
r = self.windowFrameRect()
right = QtCore.QRectF(r.right(), r.top()+10, 10, r.height()-10)
bottom = QtCore.QRectF(r.left()+10, r.bottom(), r.width(), 10)
intersectsRight = right.intersects(option.exposedRect)
intersectsBottom = bottom.intersects(option.exposedRect)
if intersectsRight and intersectsBottom:
path=QtGui.QPainterPath()
path.addRect(right)
path.addRect(bottom)
painter.setPen(QtCore.Qt.NoPen)
painter.setBrush(color)
painter.drawPath(path)
elif intersectsBottom:
painter.fillRect(bottom, color)
elif intersectsRight:
painter.fillRect(right, color)
super(CustomProxy, self).paintWindowFrame(painter, option, widget)
def hoverEnterEvent(self, event):
super(CustomProxy, self).hoverEnterEvent(event)
self.scene().setActiveWindow(self)
if self.timeLine.currentValue != 1:
self.zoomIn()
def hoverLeaveEvent(self, event):
super(CustomProxy, self).hoverLeaveEvent(event)
if not self.popupShown and (self.timeLine.direction() != QtCore.QTimeLine.Backward or self.timeLine.currentValue() != 0):
self.zoomOut()
def sceneEventFilter(self, watched, event):
if watched.isWindow() and (event.type() == QtCore.QEvent.UngrabMouse or event.type() == QtCore.QEvent.GrabMouse):
self.popupShown = watched.isVisible()
if not self.popupShown and not self.isUnderMouse():
self.zoomOut()
return super(CustomProxy, self).sceneEventFilter(watched, event)
def itemChange(self, change, value):
if change == self.ItemChildAddedChange or change == self.ItemChildRemovedChange :
# how to translate this line to python?
# QGraphicsItem *item = qVariantValue<QGraphicsItem *>(value);
item = value
try:
if change == self.ItemChildAddedChange:
item.installSceneEventFilter(self)
else:
item.removeSceneEventFilter(self)
except:
pass
return super(CustomProxy, self).itemChange(change, value)
def updateStep(self, step):
r=self.boundingRect()
self.setTransform( QtGui.QTransform() \
.translate(r.width() / 2, r.height() / 2)\
.rotate(step * 30, QtCore.Qt.XAxis)\
.rotate(step * 10, QtCore.Qt.YAxis)\
.rotate(step * 5, QtCore.Qt.ZAxis)\
.scale(1 + 1.5 * step, 1 + 1.5 * step)\
.translate(-r.width() / 2, -r.height() / 2))
def stateChanged(self, state):
if state == QtCore.QTimeLine.Running:
if self.timeLine.direction() == QtCore.QTimeLine.Forward:
self.setCacheMode(self.NoCache)
elif state == QtCore.QTimeLine.NotRunning:
if self.timeLine.direction() == QtCore.QTimeLine.Backward:
self.setCacheMode(self.DeviceCoordinateCache)
def zoomIn(self):
if self.timeLine.direction() != QtCore.QTimeLine.Forward:
self.timeLine.setDirection(QtCore.QTimeLine.Forward)
if self.timeLine.state() == QtCore.QTimeLine.NotRunning:
self.timeLine.start()
def zoomOut(self):
if self.timeLine.direction() != QtCore.QTimeLine.Backward:
self.timeLine.setDirection(QtCore.QTimeLine.Backward)
if self.timeLine.state() == QtCore.QTimeLine.NotRunning:
self.timeLine.start()
class EmbeddedDialog(QtGui.QDialog):
def __init__(self, parent=None):
super(EmbeddedDialog, self).__init__(parent)
self.ui = Ui_embeddedDialog()
self.ui.setupUi(self)
self.ui.layoutDirection.setCurrentIndex(self.layoutDirection() != QtCore.Qt.LeftToRight)
for styleName in QtGui.QStyleFactory.keys():
self.ui.style.addItem(styleName)
if self.style().objectName().lower() == styleName.lower():
self.ui.style.setCurrentIndex(self.ui.style.count() -1)
self.ui.layoutDirection.activated.connect(self.layoutDirectionChanged)
self.ui.spacing.valueChanged.connect(self.spacingChanged)
self.ui.fontComboBox.currentFontChanged.connect(self.fontChanged)
self.ui.style.activated[str].connect(self.styleChanged)
def layoutDirectionChanged(self, index):
if index == 0:
self.setLayoutDirection(QtCore.Qt.LeftToRight)
else:
self.setLayoutDirection(QtCore.Qt.RightToLeft)
def spacingChanged(self, spacing):
self.layout().setSpacing(spacing)
self.adjustSize()
def fontChanged(self, font):
self.setFont(font)
def setStyleHelper(self, widget, style):
widget.setStyle(style)
widget.setPalette(style.standardPalette())
for child in widget.children():
if isinstance(child, QtGui.QWidget):
self.setStyleHelper(child, style)
def styleChanged(self, styleName):
style=QtGui.QStyleFactory.create(styleName)
if style:
self.setStyleHelper(self, style)
# Keep a reference to the style.
self._style = style
if __name__ == '__main__':
import sys
app = QtGui.QApplication(sys.argv)
scene = QtGui.QGraphicsScene()
for y in range(10):
for x in range(10):
proxy = CustomProxy(None, QtCore.Qt.Window)
proxy.setWidget(EmbeddedDialog())
rect = proxy.boundingRect()
proxy.setPos( x * rect.width()*1.05, y*rect.height()*1.05 )
proxy.setCacheMode(QtGui.QGraphicsItem.DeviceCoordinateCache)
scene.addItem(proxy)
scene.setSceneRect(scene.itemsBoundingRect())
view = QtGui.QGraphicsView(scene)
view.scale(0.5, 0.5)
view.setRenderHints(view.renderHints() | QtGui.QPainter.Antialiasing | QtGui.QPainter.SmoothPixmapTransform)
view.setBackgroundBrush(QtGui.QBrush(QtGui.QPixmap(':/No-Ones-Laughing-3.jpg')))
view.setCacheMode(QtGui.QGraphicsView.CacheBackground)
view.setViewportUpdateMode(QtGui.QGraphicsView.BoundingRectViewportUpdate)
view.show()
view.setWindowTitle("Embedded Dialogs Demo")
sys.exit(app.exec_())
|