def setText(self, text):
if len(text) == 0: return
lines = text.split('\n')
qf = QFontMetrics(self.font)
fmw = max(qf.maxWidth(), 10)
nlines = []
w = self.width - 2 * self.margin
for line in lines:
if qf.width(line) > w:
while qf.width(line) > w:
for i in xrange(w / fmw, len(line)):
if qf.width(line, i) > w:
if line[i].isalnum() and line[i - 1].isalnum():
nlines.append(line[0:i - 1] + (
'-' if line[i - 2].isalnum() else ''))
line = line[i - 1:]
else:
nlines.append(line[0:i])
line = line[i:]
break
nlines.append(QString(line))
else:
nlines.append(QString(line))
self.__text = nlines
self.__computeTextPosition()
def drawInitialization(self):
progress = self.doInitialisation()
msg = "Initialisation ... " + progress
fm = QFontMetrics(self.font())
tw = fm.width(msg)
self.drawText((self.width() - tw) / 2, self.height() / 2, msg)
QTimer.singleShot(1, self.updateGL)
def do_size_hint(self, option, index):
text = index.data(Qt.DisplayRole).toString()
font = QFont(option.font)
font.setPointSize(QFontInfo(font).pointSize() * 1.5)
m = QFontMetrics(font)
return QSize(m.width(text), m.height())
def renderTextNearCursor(self,
textString,
offset = 10,
textColor = black,
fontSize = 11):
"""
Renders text near the cursor position, on the top right side of the
cursor (slightly above it).
See example in DNA Line mode.
@param textString: string
@param offset: The offset that will be added to x and y values of the
cursor position to get the base position of the text
to be rendered.
@see: DnaLineMode.Draw
@see: self._getFontForTextNearCursor()
@see: self.renderTextAtPosition()
"""
if not textString:
return
#Extra precaution if the caller passes a junk value such as None
#for the color
if not isinstance(textColor, tuple) and isinstance(textColor, list):
textColor = black
pos = self.cursor().pos()
# x, y coordinates need to be in window coordinate system.
# See QGLWidget.mapToGlobal for more details.
pos = self.mapFromGlobal(pos)
# Important to turn off the lighting. Otherwise the text color would
# be dull and may also become even more light if some other object
# is rendered as a transparent object. Example in DNA Line mode, when the
# second axis end sphere is rendered as a transparent sphere, it affects
# the text rendering as well (if GL_LIGHTING is not disabled)
# [-- Ninad 2007-12-03]
glDisable(GL_LIGHTING)
#Add 'stoppers' for the cursor text. Example: If the cursor is near the
#extreme right hand corner of the 3D workspace, the following code
#ensures that all the text string is visible. It does this check for
#right(x) and top(for y) borders of the glpane.
xOffset = offset
yOffset = offset
#signForDX and signForDY are used by the code that draws the same
#text in the background (offset by 1 pixel in 4 directions)
signForDX = 1
signForDY = 1
xLimit = self.width - pos.x()
#Note that at the top edge, y coord is 0
yLimit = pos.y()
textString = QString(textString)
font = self._getFontForTextNearCursor(fontSize = fontSize,
isBold = True)
#Now determine the total x and y pixels used to render the text
#(add some tolerance to that number)
fm = QFontMetrics(font)
xPixels = fm.width(textString) + 10
yPixels = fm.height() + 10
if xLimit < xPixels:
xOffset = - (xPixels - xLimit)
signForDX = -1
if yLimit < yPixels:
yOffset = - (yPixels - pos.y())
signForDY = -1
x = pos.x() + xOffset
y = pos.y() - yOffset
offset_val = 1
deltas_for_halo_color = (( offset_val, offset_val),
(-offset_val, -offset_val),
(-offset_val, offset_val),
( offset_val, -offset_val))
# halo color
halo_color = getTextHaloColor(textColor)
for dx, dy in deltas_for_halo_color:
self.qglColor(RGBf_to_QColor(halo_color))
# Note: self.renderText is QGLWidget.renderText method.
self.renderText(x + dx*signForDX ,
y + dy*signForDY,
textString,
font)
## self.qglClearColor(RGBf_to_QColor(halo_color))
## # REVIEW: why is qglClearColor needed here? Why is it done *after* renderText?
## # [bruce 081204 questions; same Qs for the other uses of qglClearColor in this file]
# Note: It is necessary to set the font color, otherwise it may change!
self.qglColor(RGBf_to_QColor(textColor))
x = pos.x() + xOffset
y = pos.y() - yOffset
self.renderText(x ,
y ,
textString,
font)
## self.qglClearColor(RGBf_to_QColor(textColor))
## # is qglClearColor related to glClearColor? [bruce 071214 question]
glEnable(GL_LIGHTING)
def mouseMoveEvent(self, event):
if self.drag is not None:
QTreeView.mouseMoveEvent(self, event)
return
if ((event.globalPos() - self.mouse_press_qpoint).manhattanLength() <
QApplication.startDragDistance()):
return
#
# starting a drag
# [logic bug, after bruce change 070507: should not do this
# if we already started dragging out a selection. How can we tell?
# Only by whether the initial press had eventInRect, I think
# (not yet recorded), or at least, the initial move (#e could record here).]
#
index = self.indexAt(event.pos())
sellst = self.selectedList() # bruce 070507 move earlier
DEBUG2 = True
if index.isValid():
thisnode = index.internalPointer().node
#bruce 070507 bring in some code from modelTreeGui.py
alreadySelected = (thisnode in sellst)
item = index.internalPointer()
rect = self.visualRect(index)
if DEBUG2:
print "visualRect coords", rect.left(), rect.right(), rect.top(
), rect.bottom()
qfm = QFontMetrics(QLineEdit(self).font())
rect.setWidth(qfm.width(item.node.name) + _ICONSIZE[0] + 4)
if DEBUG2:
print "visualRect coords, modified:", rect.left(), rect.right(
), rect.top(), rect.bottom()
# looks like icon and text, a bit taller than text (guesses)
eventInRect = rect.contains(event.pos())
if DEBUG2:
print "valid index: eventInRect = %r, item = %r, index = %r, alreadySelected = %r" % \
(eventInRect, item, index, alreadySelected)#######
else:
thisnode = item = None
alreadySelected = eventInRect = False
if not eventInRect:
# nothing to drag, but [bruce 070507] let super handle it (for dragging over nodes to select)
self.drag_is_not_DND = True ### not yet used
QTreeView.mouseMoveEvent(self, event)
return
if thisnode in sellst:
# if dragging something selected, drag along all other selected ones
dragged_nodes = sellst
else:
# if dragging something unselected, ignore any selected ones
dragged_nodes = [thisnode]
qdrag = QDrag(self)
drag_type = 'move' # how do I decide between 'move' and 'copy'?
self.drag = (dragged_nodes, drag_type, qdrag)
mimedata = QMimeData()
mimedata.setText("need a string here for a valid mimetype")
qdrag.setMimeData(mimedata)
display_prefs = {}
pixmap = dragged_nodes[0].node_icon(display_prefs)
qdrag.setPixmap(pixmap)
qdrag.setHotSpot(QPoint(-8, 8))
qdrag.start()
def mouseMoveEvent(self, event):
if self.drag is not None:
QTreeView.mouseMoveEvent(self, event)
return
if ((event.globalPos() - self.mouse_press_qpoint).manhattanLength()
< QApplication.startDragDistance()):
return
#
# starting a drag
# [logic bug, after bruce change 070507: should not do this
# if we already started dragging out a selection. How can we tell?
# Only by whether the initial press had eventInRect, I think
# (not yet recorded), or at least, the initial move (#e could record here).]
#
index = self.indexAt(event.pos())
sellst = self.selectedList() # bruce 070507 move earlier
DEBUG2 = True
if index.isValid():
thisnode = index.internalPointer().node
#bruce 070507 bring in some code from modelTreeGui.py
alreadySelected = (thisnode in sellst)
item = index.internalPointer()
rect = self.visualRect(index)
if DEBUG2:
print "visualRect coords",rect.left(), rect.right(), rect.top(), rect.bottom()
qfm = QFontMetrics(QLineEdit(self).font())
rect.setWidth(qfm.width(item.node.name) + _ICONSIZE[0] + 4)
if DEBUG2:
print "visualRect coords, modified:",rect.left(), rect.right(), rect.top(), rect.bottom()
# looks like icon and text, a bit taller than text (guesses)
eventInRect = rect.contains(event.pos())
if DEBUG2:
print "valid index: eventInRect = %r, item = %r, index = %r, alreadySelected = %r" % \
(eventInRect, item, index, alreadySelected)#######
else:
thisnode = item = None
alreadySelected = eventInRect = False
if not eventInRect:
# nothing to drag, but [bruce 070507] let super handle it (for dragging over nodes to select)
self.drag_is_not_DND = True ### not yet used
QTreeView.mouseMoveEvent(self, event)
return
if thisnode in sellst:
# if dragging something selected, drag along all other selected ones
dragged_nodes = sellst
else:
# if dragging something unselected, ignore any selected ones
dragged_nodes = [ thisnode ]
qdrag = QDrag(self)
drag_type = 'move' # how do I decide between 'move' and 'copy'?
self.drag = (dragged_nodes, drag_type, qdrag)
mimedata = QMimeData()
mimedata.setText("need a string here for a valid mimetype")
qdrag.setMimeData(mimedata)
display_prefs = { }
pixmap = dragged_nodes[0].node_icon(display_prefs)
qdrag.setPixmap(pixmap)
qdrag.setHotSpot(QPoint(-8, 8))
qdrag.start()
def do_size_hint(self, option, index):
text = index.data(Qt.DisplayRole).toString()
font = QFont(option.font)
font.setPointSize(QFontInfo(font).pointSize() * 1.5)
m = QFontMetrics(font)
return QSize(m.width(text), m.height())
def __computeTextPosition(self):
if not self.__text is None:
qf = QFontMetrics(self.parent.font())
self.__textx = self.x + (self.width - qf.width(self.__text)) / 2
self.__texty = self.y + qf.ascent() + (self.height -
qf.height()) / 2
