def drawWithFrame_inView_(self, cellFrame: NSRect, view) -> None:
# The data to display.
try:
label = self.objectValue.attrs['label']
icon = self.objectValue.attrs['icon']
except AttributeError:
# Value is a simple string.
label = self.objectValue
icon = None
if icon and icon.native:
offset = 28.5
NSGraphicsContext.currentContext.saveGraphicsState()
yOffset = cellFrame.origin.y
if view.isFlipped:
xform = NSAffineTransform.transform()
xform.translateXBy(8, yBy=cellFrame.size.height)
xform.scaleXBy(1.0, yBy=-1.0)
xform.concat()
yOffset = 0.5 - cellFrame.origin.y
interpolation = NSGraphicsContext.currentContext.imageInterpolation
NSGraphicsContext.currentContext.imageInterpolation = NSImageInterpolationHigh
icon.native.drawInRect(NSRect(NSPoint(cellFrame.origin.x, yOffset),
NSSize(16.0, 16.0)),
fromRect=NSRect(
NSPoint(0, 0),
NSSize(icon.native.size.width,
icon.native.size.height)),
operation=NSCompositingOperationSourceOver,
fraction=1.0)
NSGraphicsContext.currentContext.imageInterpolation = interpolation
NSGraphicsContext.currentContext.restoreGraphicsState()
else:
# No icon; just the text label
offset = 5
if label:
# Find the right color for the text
if self.isHighlighted():
primaryColor = NSColor.alternateSelectedControlTextColor
else:
if False:
primaryColor = NSColor.disabledControlTextColor
else:
primaryColor = NSColor.textColor
textAttributes = NSMutableDictionary.alloc().init()
textAttributes[NSForegroundColorAttributeName] = primaryColor
textAttributes[NSFontAttributeName] = NSFont.systemFontOfSize(13)
at(label).drawAtPoint(NSPoint(cellFrame.origin.x + offset,
cellFrame.origin.y),
withAttributes=textAttributes)
def tableView_viewForTableColumn_row_(self, table, column, row: int):
data_row = self.interface.data[row]
col_identifier = str(column.identifier)
try:
value = getattr(data_row, col_identifier)
# if the value is a widget itself, just draw the widget!
if isinstance(value, toga.Widget):
return value._impl.native
# Allow for an (icon, value) tuple as the simple case
# for encoding an icon in a table cell. Otherwise, look
# for an icon attribute.
elif isinstance(value, tuple):
icon_iface, value = value
else:
try:
icon_iface = value.icon
except AttributeError:
icon_iface = None
except AttributeError:
# The accessor doesn't exist in the data. Use the missing value.
try:
value = self.interface.missing_value
except ValueError as e:
# There is no explicit missing value. Warn the user.
message, value = e.args
print(message.format(row, col_identifier))
icon_iface = None
# If the value has an icon, get the _impl.
# Icons are deferred resources, so we provide the factory.
if icon_iface:
icon = icon_iface.bind(self.interface.factory)
else:
icon = None
# creates a NSTableCellView from interface-builder template (does not exist)
# or reuses an existing view which is currently not needed for painting
# returns None (nil) if both fails
identifier = at('CellView_{}'.format(self.interface.id))
tcv = self.makeViewWithIdentifier(identifier, owner=self)
if not tcv: # there is no existing view to reuse so create a new one
tcv = TogaIconView.alloc().initWithFrame_(
CGRectMake(0, 0, column.width, 16))
tcv.identifier = identifier
tcv.setText(str(value))
if icon:
tcv.setImage(icon.native)
else:
tcv.setImage(None)
# Keep track of last visible view for row
self._impl._view_for_row[data_row] = tcv
return tcv
def _add_column(self, heading, accessor):
column_identifier = at(accessor)
self.column_identifiers[accessor] = column_identifier
column = NSTableColumn.alloc().initWithIdentifier(column_identifier)
self.table.addTableColumn(column)
self.columns.append(column)
column.headerCell.stringValue = heading
def outlineView_viewForTableColumn_item_(self, tree, column, item):
col_identifier = str(column.identifier)
try:
value = getattr(item.attrs['node'], col_identifier)
# if the value is a widget itself, just draw the widget!
if isinstance(value, toga.Widget):
return value._impl.native
# Allow for an (icon, value) tuple as the simple case
# for encoding an icon in a table cell. Otherwise, look
# for an icon attribute.
elif isinstance(value, tuple):
icon_iface, value = value
else:
try:
icon_iface = value.icon
except AttributeError:
icon_iface = None
except AttributeError:
# If the node doesn't have a property with the
# accessor name, assume an empty string value.
value = ''
icon_iface = None
# If the value has an icon, get the _impl.
# Icons are deferred resources, so we provide the factory.
if icon_iface:
icon = icon_iface.bind(self.interface.factory)
else:
icon = None
# creates a NSTableCellView from interface-builder template (does not exist)
# or reuses an existing view which is currently not needed for painting
# returns None (nil) if both fails
identifier = at('CellView_{}'.format(self.interface.id))
tcv = self.makeViewWithIdentifier(identifier, owner=self)
if not tcv: # there is no existing view to reuse so create a new one
tcv = TogaIconView.alloc().initWithFrame_(
CGRectMake(0, 0, column.width, 16))
tcv.identifier = identifier
# Prevent tcv from being deallocated prematurely when no Python references
# are left
tcv.retain()
tcv.autorelease()
tcv.setText(str(value))
if icon:
tcv.setImage(icon.native)
else:
tcv.setImage(None)
return tcv
def create(self):
# Create a tree view, and put it in a scroll view.
# The scroll view is the _impl, because it's the outer container.
self.native = NSScrollView.alloc().init()
self.native.hasVerticalScroller = True
self.native.hasHorizontalScroller = False
self.native.autohidesScrollers = False
self.native.borderType = NSBezelBorder
# Create the Tree widget
self.tree = TogaTree.alloc().init()
self.tree.interface = self.interface
self.tree._impl = self
self.tree.columnAutoresizingStyle = NSTableViewColumnAutoresizingStyle.Uniform
self.tree.usesAlternatingRowBackgroundColors = True
self.tree.allowsMultipleSelection = self.interface.multiple_select
# Create columns for the tree
self.columns = []
# Cocoa identifies columns by an accessor; to avoid repeated
# conversion from ObjC string to Python String, create the
# ObjC string once and cache it.
self.column_identifiers = {}
for i, (heading, accessor) in enumerate(
zip(self.interface.headings, self.interface._accessors)):
column_identifier = at(accessor)
self.column_identifiers[id(column_identifier)] = accessor
column = NSTableColumn.alloc().initWithIdentifier(
column_identifier)
# column.editable = False
column.minWidth = 16
# if self.interface.sorting:
# sort_descriptor = NSSortDescriptor.sortDescriptorWithKey(column_identifier, ascending=True)
# column.sortDescriptorPrototype = sort_descriptor
self.tree.addTableColumn(column)
self.columns.append(column)
column.headerCell.stringValue = heading
# Put the tree arrows in the first column.
self.tree.outlineTableColumn = self.columns[0]
self.tree.delegate = self.tree
self.tree.dataSource = self.tree
self.tree.target = self.tree
self.tree.doubleAction = SEL('onDoubleClick:')
# Embed the tree view in the scroll view
self.native.documentView = self.tree
# Add the layout constraints
self.add_constraints()
def drawInteriorWithFrame_inView_(self, cellFrame: NSRect, view) -> None:
# The data to display.
icon = self.objectValue.attrs['icon']
title = self.objectValue.attrs['title']
subtitle = self.objectValue.attrs['subtitle']
if icon and icon.native:
NSGraphicsContext.currentContext.saveGraphicsState()
yOffset = cellFrame.origin.y
if view.isFlipped:
xform = NSAffineTransform.transform()
xform.translateXBy(4, yBy=cellFrame.size.height)
xform.scaleXBy(1.0, yBy=-1.0)
xform.concat()
yOffset = 0.5 - cellFrame.origin.y
interpolation = NSGraphicsContext.currentContext.imageInterpolation
NSGraphicsContext.currentContext.imageInterpolation = NSImageInterpolationHigh
icon.native.drawInRect(NSRect(
NSPoint(cellFrame.origin.x, yOffset + 4), NSSize(40.0, 40.0)),
fromRect=NSRect(
NSPoint(0, 0),
NSSize(icon.native.size.width,
icon.native.size.height)),
operation=NSCompositingOperationSourceOver,
fraction=1.0)
NSGraphicsContext.currentContext.imageInterpolation = interpolation
NSGraphicsContext.currentContext.restoreGraphicsState()
else:
path = NSBezierPath.bezierPathWithRect(
NSRect(NSPoint(cellFrame.origin.x, cellFrame.origin.y + 4),
NSSize(40.0, 40.0)))
NSColor.grayColor.set()
path.fill()
if title:
# Find the right color for the text
if self.isHighlighted():
primaryColor = NSColor.alternateSelectedControlTextColor
else:
if False:
primaryColor = NSColor.disabledControlTextColor
else:
primaryColor = NSColor.textColor
textAttributes = NSMutableDictionary.alloc().init()
textAttributes[NSForegroundColorAttributeName] = primaryColor
textAttributes[NSFontAttributeName] = NSFont.systemFontOfSize(15)
at(title).drawAtPoint(NSPoint(cellFrame.origin.x + 48,
cellFrame.origin.y + 4),
withAttributes=textAttributes)
if subtitle:
# Find the right color for the text
if self.isHighlighted():
primaryColor = NSColor.alternateSelectedControlTextColor
else:
if False:
primaryColor = NSColor.disabledControlTextColor
else:
primaryColor = NSColor.textColor
textAttributes = NSMutableDictionary.alloc().init()
textAttributes[NSForegroundColorAttributeName] = primaryColor
textAttributes[NSFontAttributeName] = NSFont.systemFontOfSize(13)
at(subtitle).drawAtPoint(NSPoint(cellFrame.origin.x + 48,
cellFrame.origin.y + 24),
withAttributes=textAttributes)
def tabView_didSelectTabViewItem_(self, view, item) -> None:
index = at(item.identifier).longValue
if self.interface.on_select:
self.interface.on_select(self.interface,
option=self.interface.content[index])
