def __init__(self, scene, parent=None):
super(ToolDefView, self).__init__(parent)
self.setStyleSheet("QGraphicsView { background-color: #ddddff; }")
self.setRenderHints(QPainter.Antialiasing)
self.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.setScene(scene)
src = self.sceneRect().center()
# Cartesian coord sys w/origin at the center of the scene rect
self.setTransform(QTransform().scale(1, -1) \
.translate(src.x(), src.y()))
# for dimension
self.dimBox = DimEdit(self)
self.dimBox.hide()
# for comment
self.commentBox = CommentEdit(self)
self.commentBox.hide()
self.fitInView(QRectF(-.5, -.5, 1.0, 1.0), qt.KeepAspectRatio)
def __init__(self, scene, parent=None):
super(ToolDefView, self).__init__(parent)
self.setStyleSheet("QGraphicsView { background-color: #ddddff; }")
self.setRenderHints(QPainter.Antialiasing)
self.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.setScene(scene)
src = self.sceneRect().center()
# Cartesian coord sys w/origin at the center of the scene rect
self.setTransform(QTransform().scale(1, -1) \
.translate(src.x(), src.y()))
# for dimension
self.dimBox = DimEdit(self)
self.dimBox.hide()
# for comment
self.commentBox = CommentEdit(self)
self.commentBox.hide()
self.fitInView(QRectF(-.5, -.5, 1.0, 1.0), qt.KeepAspectRatio)
class ToolDefView(QGraphicsView):
def __init__(self, scene, parent=None):
super(ToolDefView, self).__init__(parent)
self.setStyleSheet("QGraphicsView { background-color: #ddddff; }")
self.setRenderHints(QPainter.Antialiasing)
self.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.setScene(scene)
src = self.sceneRect().center()
# Cartesian coord sys w/origin at the center of the scene rect
self.setTransform(QTransform().scale(1, -1) \
.translate(src.x(), src.y()))
# for dimension
self.dimBox = DimEdit(self)
self.dimBox.hide()
# for comment
self.commentBox = CommentEdit(self)
self.commentBox.hide()
self.fitInView(QRectF(-.5, -.5, 1.0, 1.0), qt.KeepAspectRatio)
def sizeHint(self):
return QSize(300, 900)
def updatePixelSize(self):
sz = self.mapToScene(QRect(0, 0, 1, 1)).boundingRect().width()
self.scene().pixelSize = sz
return sz
def fitAll(self):
"""Fit tool profile and dimensions into the view.
Because the dimension labels do not scale, a half-assed iterative
approach is used to position and fit them.
"""
items = self.scene().items()
ps = 0
iters = 1
while True:
r = QRectF()
for item in items:
if not item.parentItem():
r = r.united(item.sceneBoundingRect())
self.fitInView(r, qt.KeepAspectRatio)
pps = self.updatePixelSize()
for item in items:
if isinstance(item, ToolDef):
item.config()
if iters == 20 or abs(ps - pps) < 0.0001:
break
ps = pps
iters += 1
# print 'iters', iters
def resizeEvent(self, e):
super(ToolDefView, self).resizeEvent(e)
self.fitAll()
if self.dimBox.isVisible():
self.posEditBox(self.dimBox)
elif self.commentBox.isVisible():
self.posEditBox(self.commentBox)
def posEditBox(self, box):
"""Ensure the dimension edit text box is not clipped if possible.
If both the left and right sides are clipped, it's just centered over
the dim as if it were not clipped.
"""
item = box.item
viewpos = self.mapFromScene(item.pos())
sz = box.size()
lclip = min(0, viewpos.x() - sz.width() / 2.0)
rclip = max(0, viewpos.x() + sz.width() / 2.0 - self.width())
if lclip and rclip or not lclip and not rclip:
box.move(viewpos.x() - sz.width() / 2,
viewpos.y() - sz.height() / 2)
elif lclip:
box.move(viewpos.x() - sz.width() / 2 - lclip,
viewpos.y() - sz.height() / 2)
elif rclip:
box.move(viewpos.x() - sz.width() / 2 - rclip,
viewpos.y() - sz.height() / 2)
def mousePressEvent(self, e):
"""Handle Dimension selection.
When a dimension is clicked, an associated line edit box is shown and
given focus. If one is already visible and the mouse is clicked on
anything except another dimension text, the line edit is hidden.
"""
# other buttons do nothing
if e.button() == qt.LeftButton:
item = self.itemAt(e.pos())
self.commentBox.hide()
self.dimBox.hide()
if item and isinstance(item, (DimLabel, CommentLabel)):
if isinstance(item, DimLabel):
box = self.dimBox
elif isinstance(item, CommentLabel):
box = self.commentBox
box.setItem(item)
box.setText(item.text())
box.selectAll()
box.show()
self.posEditBox(box)
box.setFocus()
def keyPressEvent(self, e):
# eat it
pass
def wheelEvent(self, e):
# eat it
pass
class ToolDefView(QGraphicsView):
def __init__(self, scene, parent=None):
super(ToolDefView, self).__init__(parent)
self.setStyleSheet("QGraphicsView { background-color: #ddddff; }")
self.setRenderHints(QPainter.Antialiasing)
self.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.setScene(scene)
src = self.sceneRect().center()
# Cartesian coord sys w/origin at the center of the scene rect
self.setTransform(QTransform().scale(1, -1) \
.translate(src.x(), src.y()))
# for dimension
self.dimBox = DimEdit(self)
self.dimBox.hide()
# for comment
self.commentBox = CommentEdit(self)
self.commentBox.hide()
self.fitInView(QRectF(-.5, -.5, 1.0, 1.0), qt.KeepAspectRatio)
def sizeHint(self):
return QSize(300, 900)
def updatePixelSize(self):
sz = self.mapToScene(QRect(0, 0, 1, 1)).boundingRect().width()
self.scene().pixelSize = sz
return sz
def fitAll(self):
"""Fit tool profile and dimensions into the view.
Because the dimension labels do not scale, a half-assed iterative
approach is used to position and fit them.
"""
items = self.scene().items()
ps = 0
iters = 1
while True:
r = QRectF()
for item in items:
if not item.parentItem():
r = r.united(item.sceneBoundingRect())
self.fitInView(r, qt.KeepAspectRatio)
pps = self.updatePixelSize()
for item in items:
if isinstance(item, ToolDef):
item.config()
if iters == 20 or abs(ps - pps) < 0.0001:
break
ps = pps
iters += 1
# print 'iters', iters
def resizeEvent(self, e):
super(ToolDefView, self).resizeEvent(e)
self.fitAll()
if self.dimBox.isVisible():
self.posEditBox(self.dimBox)
elif self.commentBox.isVisible():
self.posEditBox(self.commentBox)
def posEditBox(self, box):
"""Ensure the dimension edit text box is not clipped if possible.
If both the left and right sides are clipped, it's just centered over
the dim as if it were not clipped.
"""
item = box.item
viewpos = self.mapFromScene(item.pos())
sz = box.size()
lclip = min(0, viewpos.x() - sz.width() / 2.0)
rclip = max(0, viewpos.x() + sz.width() / 2.0 - self.width())
if lclip and rclip or not lclip and not rclip:
box.move(viewpos.x() - sz.width() / 2,
viewpos.y() - sz.height() / 2)
elif lclip:
box.move(viewpos.x() - sz.width() / 2 - lclip,
viewpos.y() - sz.height() / 2)
elif rclip:
box.move(viewpos.x() - sz.width() / 2 - rclip,
viewpos.y() - sz.height() / 2)
def mousePressEvent(self, e):
"""Handle Dimension selection.
When a dimension is clicked, an associated line edit box is shown and
given focus. If one is already visible and the mouse is clicked on
anything except another dimension text, the line edit is hidden.
"""
# other buttons do nothing
if e.button() == qt.LeftButton:
item = self.itemAt(e.pos())
self.commentBox.hide()
self.dimBox.hide()
if item and isinstance(item, (DimLabel, CommentLabel)):
if isinstance(item, DimLabel):
box = self.dimBox
elif isinstance(item, CommentLabel):
box = self.commentBox
box.setItem(item)
box.setText(item.text())
box.selectAll()
box.show()
self.posEditBox(box)
box.setFocus()
def keyPressEvent(self, e):
# eat it
pass
def wheelEvent(self, e):
# eat it
pass
