def make_image(path, src, fail_ok=False):
"""relative to path (if needed), make a QGraphicsPixmapItem
for the image named in src, returning None if not available,
or an 'No Image' image if fail_ok == False"""
if '//' not in src or src.startswith('file://'):
testpath = src
if '//' in testpath:
testpath = testpath.split('//', 1)[-1]
#
# file on local file system
testpath = g.os_path_finalize_join(path, testpath)
if g.os_path_exists(testpath):
return QtWidgets.QGraphicsPixmapItem(QtGui.QPixmap(testpath))
#
# explicit file://, but no such file exists
if src.startswith('file://'):
return None if fail_ok else GetImage._no_image()
#
# no explict file://, so try other protocols
testpath = src if '//' in src else 'http://%s' % (src)
data = GetImage.get_url(testpath)
if data:
img = QtGui.QPixmap()
if img.loadFromData(data):
return QtWidgets.QGraphicsPixmapItem(img)
return None if fail_ok else GetImage._no_image()
def image(self, pane, fn, center=None, height=None, width=None):
'''Put an image in the indicated pane.'''
m = self
parent = m.pane_widget(pane)
if not parent:
g.trace('bad pane: %s' % (pane))
return None
w = QtWidgets.QLabel('label', parent)
fn = m.resolve_icon_fn(fn)
if not fn:
return None
pixmap = QtGui.QPixmap(fn)
if not pixmap:
return g.trace('Not a pixmap: %s' % (fn))
if height:
pixmap = pixmap.scaledToHeight(height)
if width:
pixmap = pixmap.scaledToWidth(width)
w.setPixmap(pixmap)
if center:
g_w = w.geometry()
g_p = parent.geometry()
dx = (g_p.width() - g_w.width()) / 2
w.move(g_w.x() + dx, g_w.y() + 10)
w.show()
m.widgets.append(w)
return w
def init_image(self, fn, magnification, position, size):
'''Init the image whose file name fn is given.'''
demo, widget = g.app.demo, self
fn = demo.get_icon_fn(fn)
if not fn:
g.trace('can not resolve', fn)
return
pixmap = QtGui.QPixmap(fn)
if not pixmap:
g.trace('Not a pixmap:', fn)
return
if magnification:
if size:
h, w = size
else:
r = pixmap.size()
h, w = r.height(), r.width()
size = h*magnification, w*magnification
if size:
try:
h, w = size
h = demo.get_int(h)
w = demo.get_int(w)
if h is not None:
pixmap = pixmap.scaledToHeight(h)
if w is not None:
pixmap = pixmap.scaledToWidth(w)
except ValueError:
g.trace('invalid size', repr(size))
if position:
demo.set_position(widget, position)
widget.setPixmap(pixmap)
def create_frame(self, filename, filenames, window):
QLabel = QtWidgets.QLabel
# Create the frame.
frame = QtWidgets.QFrame(parent=window)
# Create the vertical layout.
layout = QtWidgets.QVBoxLayout()
frame.setLayout(layout)
# Set the font.
font = QtGui.QFont()
font.setBold(True)
font.setPointSize(12)
# Create the labels..
ctime = time.ctime(os.path.getctime(filename))
struct_time = time.strptime(ctime)
creation_time = time.strftime('%Y %m %d', struct_time)
file_label = QLabel(text=filename, parent=frame)
file_label.setFont(font)
layout.addWidget(file_label)
size = os.path.getsize(filename) / 1000
info_label = QLabel(text=f"size: {size} KB date: {creation_time}")
info_label.setFont(font)
layout.addWidget(info_label)
# Create the delete button, centered.
button_layout = QtWidgets.QHBoxLayout()
button_layout.addStretch()
delete_button = QtWidgets.QPushButton(text='Delete', parent=frame)
button_layout.addWidget(delete_button)
button_layout.addStretch()
layout.addLayout(button_layout)
# Set the button action.
def delete_action(arg):
self.delete_file(filename)
delete_button.clicked.connect(delete_action)
# Create the picture area.
picture = QtWidgets.QLabel('picture', parent=frame)
layout.addWidget(picture)
# Display the picture.
pixmap = QtGui.QPixmap(filename)
try:
TransformationMode = QtCore.Qt if isQt5 else QtCore.Qt.TransformationMode
image = pixmap.scaledToHeight(
self.window_height, TransformationMode.SmoothTransformation) # pylint: disable=no-member
picture.setPixmap(image)
picture.adjustSize()
return frame
except Exception:
g.trace('Bad image')
g.es_exception()
return None
def showColorNames(event=None):
"""Put up a dialog showing color names."""
c = event.get('c')
template = '''
QComboBox {
background-color: %s;
selection-background-color: %s;
selection-color: black;
}'''
ivar = 'leo_settings_color_picker'
if getattr(c, ivar, None):
g.es('The color picker already exists in the icon bar.')
else:
color_list: List[str] = []
box = QtWidgets.QComboBox()
def onActivated(n, *args, **keys):
color = color_list[n]
sheet = template % (color, color)
box.setStyleSheet(sheet)
g.es("copied to clipboard:", color)
QtWidgets.QApplication.clipboard().setText(color)
box.activated.connect(onActivated)
color_db = leoColor.leo_color_database
for key in sorted(color_db):
if not key.startswith('grey'): # Use gray, not grey.
val = color_db.get(key)
color = QtGui.QColor(val)
color_list.append(val)
pixmap = QtGui.QPixmap(40, 40)
pixmap.fill(color)
icon = QtGui.QIcon(pixmap)
box.addItem(icon, key)
c.frame.iconBar.addWidget(box)
setattr(c, ivar, True)
# Do this last, so errors don't prevent re-execution.
g.es('created color picker in icon area')
def show_slide(self):
# Reset the timer.
self.timer.stop()
self.timer.start(int(self.delay * 1000.0), self)
if not self.files_list:
self.quit()
# Get the file name.
file_name = self.files_list[self.slide_number]
if self.verbose:
print(file_name)
# Change the title.
self.setWindowTitle(file_name)
# Display the picture.
pixmap = QtGui.QPixmap(file_name)
try:
TransformationMode = QtCore.Qt if isQt5 else QtCore.Qt.TransformationMode
image = pixmap.scaledToHeight(
int(self.height() * self.scale),
TransformationMode.SmoothTransformation, # pylint: disable=no-member
)
self.picture.setPixmap(image)
self.picture.adjustSize()
except Exception:
self.next_slide()
def make_pointer(self):
"""Return a pixmap for a pointer."""
path = g.computeLeoDir()
path = g.os_path_join(path, 'Icons', 'recorder', 'pointer.png')
return QtGui.QPixmap(path)
def _no_image():
"""return QGraphicsPixmapItem with "No Image" image loaded"""
testpath = g.os_path_abspath(
g.os_path_join(g.app.loadDir,
'../plugins/GraphCanvas/no_image.png'))
return QtWidgets.QGraphicsPixmapItem(QtGui.QPixmap(testpath))
