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Qt4_GUIBuilder.py
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Qt4_GUIBuilder.py
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#
# Project: MXCuBE
# https://github.com/mxcube.
#
# This file is part of MXCuBE software.
#
# MXCuBE is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# MXCuBE is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with MXCuBE. If not, see <http://www.gnu.org/licenses/>.
"""GUI Builder interface"""
import os
import re
import imp
import weakref
import logging
import subprocess
from QtImport import *
import BlissFramework
from BlissFramework import Qt4_Configuration
from BlissFramework import Qt4_Icons
from BlissFramework.Utils import Qt4_PropertyEditor
from BlissFramework.Utils import Qt4_ConnectionEditor
from BlissFramework.Bricks import Qt4_LogViewBrick
from BlissFramework.Qt4_BaseLayoutItems import ContainerCfg
from BlissFramework.Utils import Qt4_GUIDisplay
try:
from HardwareRepository import HardwareRepository
except ImportError:
logging.getLogger().warning("no Hardware Repository client module could be found")
class HorizontalSpacer(QWidget):
"""Horizontal spacer class"""
def __init__(self, *args, **kwargs):
"""__init__
"""
QWidget.__init__(self, *args)
h_size = kwargs.get("size", None)
if h_size is not None:
self.setFixedWidth(h_size)
self.setSizePolicy(QSizePolicy.Fixed,
QSizePolicy.Fixed)
else:
self.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Fixed)
class CustomListWidget(QListWidget):
"""Custom ListWidget
"""
def __init__(self, *args):
"""__init__ method"""
QListWidget.__init__(self, *args)
self.setVerticalScrollBarPolicy(Qt.ScrollBarAsNeeded)
self.setSelectionMode(QAbstractItemView.SingleSelection)
def addToolTip(self, item, text):
"""Sets tool tip"""
self.setToolTip(text)
class GUITreeWidget(QTreeWidget):
"""Gui config tree"""
dragDropSignal = pyqtSignal(object, object)
def __init__(self, *args):
"""__init__ method"""
QTreeWidget.__init__(self, *args)
self.setColumnCount(2)
self.setColumnWidth(0, 200)
self.setColumnWidth(1, 200)
self.setHeaderLabels(["Element", "Type"])
self.setAcceptDrops(True)
self.viewport().setAcceptDrops(True)
self.setSelectionMode(QAbstractItemView.SingleSelection)
self.setItemsExpandable(True)
self.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding)
self.drag_source_item = None
self.drag_target_item = None
def dragEnterEvent(self, event):
"""Drag start event"""
if self.drag_source_item is None:
self.drag_source_item = self.selectedItems()[0]
event.accept()
def dropEvent(self, event):
"""Drop event"""
self.drag_target_item = self.itemAt(event.pos())
if self.drag_source_item and self.drag_target_item:
self.dragDropSignal.emit(self.drag_source_item,
self.drag_target_item)
self.drag_source_item = None
event.accept()
class ToolboxWidget(QWidget):
"""Toolbox windget"""
addBrickSignal = pyqtSignal(str)
def __init__(self, *args, **kwargs):
"""Init"""
QWidget.__init__(self, *args)
# Internal variables --------------------------------------------------
self.bricks_tab_dict = {}
self.bricks_dict = {}
# Graphic elements ----------------------------------------------------
_top_frame = QFrame(self)
_refresh_toolbutton = QToolButton(_top_frame)
_refresh_toolbutton.setIcon(Qt4_Icons.load_icon("reload"))
self._bricks_toolbox = QToolBox(self)
# Layout --------------------------------------------------------------
_main_vlayout = QVBoxLayout(self)
_main_vlayout.addWidget(QLabel("Available bricks", _top_frame))
_main_vlayout.addWidget(_refresh_toolbutton)
_main_vlayout.addWidget(self._bricks_toolbox)
_main_vlayout.setSpacing(2)
_main_vlayout.setContentsMargins(2, 2, 2, 2)
# SizePolicies --------------------------------------------------------
# Qt signal/slot connections ------------------------------------------
_refresh_toolbutton.clicked.connect(self.refresh_clicked)
# Other ---------------------------------------------------------------
self.setWindowTitle("Toolbox")
self.setToolTip("refresh bricks list")
def add_brick_tab(self, name):
"""Adds a new brick tab with a name
:param name: name of the tab
:type name: str
:returns: list of bricks
"""
new_bricks_list = CustomListWidget(self._bricks_toolbox)
new_bricks_list.itemDoubleClicked.connect(self.brick_selected)
self._bricks_toolbox.addItem(new_bricks_list, name)
self.bricks_tab_dict[name] = new_bricks_list
return new_bricks_list
def refresh_clicked(self):
"""Refresh list of available bricks"""
while self._bricks_toolbox.currentWidget():
self._bricks_toolbox.removeItem(\
self._bricks_toolbox.currentIndex())
self.bricks_dict = {}
self.bricks_tab_dict = {}
list(map(self.add_bricks, (BlissFramework.getStdBricksPath(), ) + \
tuple(BlissFramework.getCustomBricksDirs())))
def get_brick_text_label(self, brick_name):
"""
:returns: brick text
"""
if brick_name.endswith("Brick"):
brick_text_label = brick_name[:-5]
else:
brick_text_label = brick_name
for index in range(len(brick_text_label)):
if brick_text_label[index].isalpha() or \
brick_text_label[index].isdigit():
if index > 0 and brick_text_label[index].isupper() and \
brick_text_label[index - 1].islower():
brick_text_label = brick_text_label[0 : index] + \
" " + \
brick_text_label[index].lower() + \
brick_text_label[index + 1 : ]
else:
brick_text_label = brick_text_label[0: index] + \
" " + \
brick_text_label[index + 1:]
return brick_text_label
def add_bricks(self, brickDir):
"""Add the bricks found in the 'brickDir' directory to the
bricks tab widget
"""
find_category_re = re.compile("^__category__\s*=\s*['\"](.*)['\"]$", re.M)
find_docstring_re = re.compile('^"""(.*?)"""?$', re.M | re.S)
full_filenames = []
for file_or_dir in os.listdir(brickDir):
full_path = os.path.join(brickDir, file_or_dir)
if os.path.isdir(full_path):
path_with_trunk = os.path.join(full_path, 'trunk')
if os.path.isdir(path_with_trunk):
full_path = path_with_trunk
file_names = [os.path.join(full_path, filename) \
for filename in os.listdir(full_path)]
full_filenames.extend(file_names)
else:
full_filenames.append(full_path)
full_filenames.sort()
processed_bricks = []
brick_categories = {}
for full_filename in full_filenames:
filename = os.path.basename(full_filename)
if [x for x in [x[0] for x in imp.get_suffixes()] \
if filename.endswith(x)]:
brick_name = filename[: filename.rfind('.')]
if (not brick_name.startswith('__') and
brick_name.startswith('Qt4') and
not 'cpython' in brick_name and
not brick_name in processed_bricks):
processed_bricks.append(brick_name)
directory_name = os.path.dirname(full_filename)
brick_module_file = None
try:
brick_module_file, path, description = \
imp.find_module(brick_name, [directory_name])
except:
if brick_module_file:
brick_module_file.close()
continue
module_contents = brick_module_file.read()
check_if_it_Brick = re.compile(\
'^\s*class\s+%s.+?:\s*$' % brick_name, re.M)
if not check_if_it_Brick.search(module_contents): continue
match = find_category_re.search(module_contents)
if match is None:
category = ""
else:
category = match.group(1)
match = find_docstring_re.search(module_contents)
if match is None:
description = ""
else:
description = match.group(1)
try:
brick_categories[category].append((brick_name,
directory_name,
description))
except KeyError:
brick_categories[category] = [(brick_name,
directory_name,
description)]
if len(brick_categories) == 0:
return
category_keys = list(brick_categories.keys())
category_keys.sort()
for category in category_keys:
bricks_list = brick_categories[category]
try:
bricks_listwidget = self.bricks_tab_dict[category]
except KeyError:
bricks_listwidget = self.add_brick_tab(category)
for brick_name, directory_name, description in bricks_list:
brick_list_widget_item = QListWidgetItem(\
self.get_brick_text_label(brick_name),
bricks_listwidget)
bricks_listwidget.addToolTip(brick_list_widget_item,
description)
self.bricks_dict[id(brick_list_widget_item)] = \
(directory_name, brick_name)
def brick_selected(self, item):
"""Brick selected event"""
dir_name, brick_name = self.bricks_dict[id(item)]
self.addBrickSignal.emit(brick_name)
class Qt4_PropertyEditorWindow(QWidget):
"""Property editor window contains two tables:
One for properties to link hardware objects (property name
start with hwobj_) and the second one for all other properties
"""
def __init__(self, *args, **kwargs):
"""init"""
QWidget.__init__(self, *args)
self.setWindowTitle("Properties")
self.properties_table = \
Qt4_PropertyEditor.Qt4_ConfigurationTable(self)
self.hwobj_properties_table = \
Qt4_PropertyEditor.Qt4_ConfigurationTable(self)
self.__property_changed_cb = weakref.WeakKeyDictionary()
self.properties_table.propertyChangedSignal.connect(self.property_changed)
_main_vlayout = QVBoxLayout(self)
_main_vlayout.addWidget(self.properties_table)
_main_vlayout.addWidget(QLabel("Hardware objects:", self))
_main_vlayout.addWidget(self.hwobj_properties_table)
_main_vlayout.setSpacing(2)
_main_vlayout.setContentsMargins(2, 2, 2, 2)
self.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Minimum)
def edit_properties(self, property_bag):
"""Edits property"""
self.properties_table.set_property_bag(property_bag)
self.hwobj_properties_table.set_property_bag(property_bag,
display_hwobj=True)
def property_changed(self, *args):
"""Property changed callback"""
try:
property_changed_cb = self.__property_changed_cb[\
self.properties_table.property_bag]
except KeyError as err:
return
else:
property_changed_cb(*args)
def add_properties(self, property_bag, property_changed_cb):
"""Adds properties"""
self.__property_changed_cb[property_bag] = property_changed_cb
self.edit_properties(property_bag)
class ToolButton(QToolButton):
"""Custom ToolButton"""
def __init__(self, parent, icon, text=None, callback=None, tooltip=None):
"""init"""
QToolButton.__init__(self, parent)
self.setIcon(Qt4_Icons.load_icon(icon))
if type(text) != bytes:
tooltip = callback
callback = text
else:
self.setTextLabel(text)
self.setTextPosition(QToolButton.BesideIcon)
self.setUsesTextLabel(True)
if callback is not None:
self.clicked.connect(callback)
if tooltip is not None:
self.setToolTip(tooltip)
#QToolTip.add(self, tooltip)
self.setSizePolicy(QSizePolicy.Fixed,
QSizePolicy.Fixed)
class GUIEditorWindow(QWidget):
"""Gui editor window"""
editPropertiesSignal = pyqtSignal(object)
newItemSignal = pyqtSignal(object, object)
drawPreviewSignal = pyqtSignal(object, int, list, object)
updatePreviewSignal = pyqtSignal(object, object, object, object)
addWidgetSignal = pyqtSignal(object, object)
removeWidgetSignal = pyqtSignal(object,object)
moveWidgetSignal = pyqtSignal(object, object)
showProperyEditorWindowSignal = pyqtSignal()
hidePropertyEditorWindowSignal = pyqtSignal()
showPreviewSignal = pyqtSignal()
def __init__(self, *args, **kwargs):
"""init"""
QWidget.__init__(self, *args)
# Internal values -----------------------------------------------------
self.configuration = Qt4_Configuration.Configuration()
# Graphic elements ----------------------------------------------------
_tools_widget = QWidget(self)
_add_window_toolbutton = ToolButton(_tools_widget, "window_new",
self.add_window_clicked, "Add a new window (container)")
_add_tab_toolbutton = ToolButton(_tools_widget, "tab",
self.add_tab_clicked, "Add a new tab (container)")
_add_hbox_toolbutton = ToolButton(_tools_widget, "add_hbox",
self.add_hbox_clicked, "Add a new horizontal box (container)")
_add_vbox_toolbutton = ToolButton(_tools_widget, "add_vbox",
self.add_vbox_clicked, "Add a new vertical box (container)")
_add_hgroupbox_toolbutton = ToolButton(_tools_widget, "hgroupbox",
self.add_hgroupbox_clicked,
"add a new horizontal group box (container)")
_add_vgroupbox_toolbutton = ToolButton(_tools_widget, "vgroupbox",
self.add_vgroupbox_clicked,
"Add a new vertical group box (container)")
_add_hspacer_toolbutton = ToolButton(_tools_widget, "add_hspacer",
self.add_hspacer_clicked, "Add a new horizontal spacer")
_add_vspacer_toolbutton = ToolButton(_tools_widget, "add_vspacer",
self.add_vspacer_clicked, "add a new vertical spacer")
_add_hsplitter_toolbutton = ToolButton(_tools_widget, "hsplitter",
self.add_hsplitter_clicked,
"Add a new horizontal splitter (container)")
_add_vsplitter_toolbutton = ToolButton(_tools_widget, "vsplitter",
self.add_vsplitter_clicked,
"add a new vertical splitter (container)")
_add_icon_toolbutton = ToolButton(_tools_widget, "icon",
self.add_icon_clicked, "add a new icon")
_add_label_toolbutton = ToolButton(_tools_widget, "label",
self.add_label_clicked, "add a new label")
_tree_handling_widget = QWidget(self)
_show_connections_toolbutton = ToolButton(_tree_handling_widget,
"connect_creating", self.show_connections_clicked,
"Manage connections between items")
_move_up_toolbutton = ToolButton(_tree_handling_widget, "Up2",
self.move_up_clicked, "move an item up")
_move_down_toolbutton = ToolButton(_tree_handling_widget, "Down2",
self.move_down_clicked, "move an item down")
_remove_item_toolbutton = ToolButton(_tree_handling_widget,
"delete_small", self.remove_item_clicked, "delete an item")
self.tree_widget = GUITreeWidget(self)
self.root_element = QTreeWidgetItem(self.tree_widget)
self.root_element.setText(0, "GUI tree")
self.root_element.setExpanded(True)
self.connection_editor_window = Qt4_ConnectionEditor.\
Qt4_ConnectionEditor(self.configuration)
# Layout --------------------------------------------------------------
_toolbox_hlayout = QHBoxLayout(_tools_widget)
_toolbox_hlayout.addWidget(_add_window_toolbutton)
_toolbox_hlayout.addWidget(_add_tab_toolbutton)
_toolbox_hlayout.addWidget(_add_hbox_toolbutton)
_toolbox_hlayout.addWidget(_add_vbox_toolbutton)
_toolbox_hlayout.addWidget(_add_hgroupbox_toolbutton)
_toolbox_hlayout.addWidget(_add_vgroupbox_toolbutton)
_toolbox_hlayout.addWidget(_add_hspacer_toolbutton)
_toolbox_hlayout.addWidget(_add_vspacer_toolbutton)
_toolbox_hlayout.addWidget(_add_hsplitter_toolbutton)
_toolbox_hlayout.addWidget(_add_vsplitter_toolbutton)
_toolbox_hlayout.addWidget(_add_icon_toolbutton)
_toolbox_hlayout.addWidget(_add_label_toolbutton)
_toolbox_hlayout.addStretch(0)
_toolbox_hlayout.setSpacing(2)
_toolbox_hlayout.setContentsMargins(2, 2, 2, 2)
_tree_handling_widget_hlayout = QHBoxLayout(_tree_handling_widget)
_tree_handling_widget_hlayout.addWidget(_show_connections_toolbutton)
_tree_handling_widget_hlayout.addWidget(_move_up_toolbutton)
_tree_handling_widget_hlayout.addWidget(_move_down_toolbutton)
_tree_handling_widget_hlayout.addWidget(_remove_item_toolbutton)
_tree_handling_widget_hlayout.addStretch(0)
_tree_handling_widget_hlayout.setSpacing(2)
_tree_handling_widget_hlayout.setContentsMargins(2, 2, 2, 2)
_main_vlayout = QVBoxLayout(self)
_main_vlayout.addWidget(_tools_widget)
_main_vlayout.addWidget(_tree_handling_widget)
_main_vlayout.addWidget(self.tree_widget)
_main_vlayout.setSpacing(2)
_main_vlayout.setContentsMargins(2, 2, 2, 2)
# SizePolicies --------------------------------------------------------
_tools_widget.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Fixed)
# Qt signal/slot connections ------------------------------------------
self.tree_widget.itemSelectionChanged.connect(self.item_selected)
self.tree_widget.itemDoubleClicked.connect(self.item_double_clicked)
self.tree_widget.itemChanged.connect(self.item_changed)
self.tree_widget.dragDropSignal.connect(self.item_drag_dropped)
# Other ---------------------------------------------------------------
self.item_rename_started = None
self.setWindowTitle("GUI Editor")
def create_action(self, text, slot=None, shortcut=None, icon=None,
tip=None, checkable=False, signal="triggered()"):
"""Creates an action"""
action = QAction(text, self)
if icon is not None:
action.setIcon(Qt4_Icons.load_icon(icon))
if shortcut is not None:
action.setShortcut(shortcut)
if tip is not None:
action.setToolTip(tip)
action.setStatusTip(tip)
if slot is not None:
action.signal.connect(slot)
if checkable:
action.setCheckable(True)
return action
def add_actions(self, target, actions):
"""Adds action"""
for action in actions:
if action is None:
target.addSeparator()
else:
target.addAction(action)
def set_configuration(self, configuration):
"""Sets configuration
"""
self.configuration = configuration
self.tree_widget.blockSignals(True)
self.hidePropertyEditorWindowSignal.emit()
def add_children(children, parent_item):
parent_name = str(parent_item.text(0))
parent = self.configuration.find_container(parent_name)
for child in children:
if self.configuration.is_container(child):
new_list_item = self.append_item(parent_item,
child["name"],
child["type"],
icon=child["type"])
add_children(child["children"], new_list_item)
self.configuration.items[child["name"]].updateSlots()
elif self.configuration.is_spacer(child):
new_list_item = self.append_item(parent_item,
child["name"],
"spacer",
icon=child["type"])
elif self.configuration.is_brick(child):
new_list_item = self.append_item(parent_item,
child["name"],
child["type"],
icon="brick")
else:
new_list_item = self.append_item(parent_item,
child["name"],
child["type"],
icon=child["type"])
self.connect_item(parent, child, new_list_item)
for window in self.configuration.windows_list:
parent_window_item = self.append_item(self.root_element,
window.name,
"window",
icon="window_small")
self.connect_item(None, window, parent_window_item)
add_children(window["children"], parent_window_item)
self.tree_widget.blockSignals(False)
#self.tree_widget.triggerUpdate()
self.tree_widget.update()
self.tree_widget.setCurrentItem(self.root_element.child(0))
self.showProperyEditorWindowSignal.emit()
def show_connections_clicked(self):
"""Show dialog with connection table between bricks"""
self.connection_editor_window.show_connections(self.configuration)
self.connection_editor_window.show()
def update_properties(self, item_cfg):
"""Updates properties"""
self.editPropertiesSignal.emit(item_cfg["properties"])
def append_item(self, parent_item, column1_text, column2_text, icon=None):
"""Appends an item to the tree"""
new_treewidget_item = QTreeWidgetItem(parent_item)
new_treewidget_item.setText(0, str(column1_text))
new_treewidget_item.setText(1, str(column2_text))
new_treewidget_item.setExpanded(True)
self.tree_widget.setDragEnabled(True)
self.tree_widget.setAcceptDrops(True)
if isinstance(icon, str):
new_treewidget_item.setIcon(0, Qt4_Icons.load_icon(icon))
self.tree_widget.setCurrentItem(new_treewidget_item)
self.tree_widget.scrollToItem(new_treewidget_item,
QAbstractItemView.EnsureVisible)
return new_treewidget_item
def remove_item_clicked(self):
"""Removes item from the config tree"""
current_item = self.tree_widget.currentItem()
if current_item:
item_parent_name = str(current_item.parent().text(0))
item_name = str(current_item.text(0))
children_count = current_item.childCount()
if children_count > 0:
if QMessageBox.warning(\
self,
"Please confirm",
"Are you sure you want to remove %s ?\n" % item_name + \
"%d children will be removed." % children_count,
QMessageBox.Yes, QMessageBox.No) == \
QMessageBox.No:
return
item_cfg = self.configuration.find_item(item_name)
children_name_list = []
for child in item_cfg['children']:
children_name_list.append(child['name'])
self.removeWidgetSignal.emit(item_name,
children_name_list)
if self.configuration.remove(item_name):
root = self.tree_widget.invisibleRootItem()
for item in self.tree_widget.selectedItems():
(item.parent() or root).removeChild(item)
def draw_window_preview(self):
"""Draws GUI"""
container_name = self.root_element.child(0).text(0)
container_cfg, window_id, container_ids, selected_item = \
self.prepare_window_preview(container_name, None, "")
self.drawPreviewSignal.emit(container_cfg,
window_id,
container_ids,
selected_item)
def update_window_preview(self, container_name, container_cfg=None,
selected_item=""):
"""Refresh GUI"""
upd_container_cfg, upd_window_id, \
upd_container_ids, upd_selected_item = \
self.prepare_window_preview(container_name,
container_cfg,
selected_item)
self.updatePreviewSignal.emit(upd_container_cfg,
upd_window_id,
upd_container_ids,
selected_item)
def prepare_window_preview(self, item_name, item_cfg=None, selected_item=""):
"""Prepares window"""
item_list = self.tree_widget.findItems(str(item_name),
Qt.MatchRecursive,
0)
item = item_list[0]
item_type = str(item.text(1))
window_id = None
if item_type == "window":
window_id = str(item.text(0))
else:
# find parent window
parent = item.parent()
while (parent):
if str(parent.text(1)) == "window":
window_id = str(parent.text(0))
break
parent = parent.parent()
if item_type != "window" and item.childCount() == 0:
item = item.parent()
item_name = str(item.text(0))
item_cfg = None
if item_cfg is None:
item_cfg = self.configuration.find_item(item_name)
item_ids = []
current_item = self.root_element
while self.tree_widget.itemBelow(current_item):
current_item = self.tree_widget.itemBelow(current_item)
item_ids.append(str(current_item.text(0)))
return item_cfg, window_id, item_ids, selected_item
def connect_item(self, parent, new_item, new_list_item):
"""Connect item"""
if self.configuration.is_brick(new_item):
self.newItemSignal.emit(new_item["brick"].property_bag,
new_item["brick"]._propertyChanged)
else:
if parent is not None:
parent_ref = weakref.ref(parent)
else:
parent_ref = None
def property_changed_cb(property_name, old_value, new_value,
item_ref=weakref.ref(new_list_item),
parent_ref=parent_ref):
item = item_ref()
if item is None:
return
item_name = str(item.text(0))
item_type = str(item.text(1))
try:
item_class = Qt4_Configuration.Configuration.classes[item_type]
except KeyError:
self.update_window_preview(item_name)
else:
if issubclass(item_class, ContainerCfg):
# we should update the container itself,
# not just its contents so we trigger an
# update of the parent instead
if parent_ref is not None:
parent = parent_ref()
if parent is not None:
self.update_window_preview(parent["name"],
parent)
else:
self.update_window_preview(item_name)
if parent_ref is not None:
parent = parent_ref()
if parent is None:
return
parent.childPropertyChanged(item_name,
property_name,
old_value,
new_value)
self.newItemSignal.emit(new_item["properties"],
property_changed_cb)
def add_window_clicked(self):
"""Adds window"""
self._add_item(self.root_element, "window")
def _add_item(self, parent_list_item, item_type, *args):
"""Adds item"""
parent_name = str(parent_list_item.text(0))
parent = self.configuration.find_container(parent_name)
new_item = None
new_list_item = None
try:
QApplication.setOverrideCursor(\
QCursor(Qt.WaitCursor))
if item_type == "window":
new_item = self.configuration.add_window()
if type(new_item) == bytes:
QMessageBox.warning(self, "Cannot add item",
new_item, QMessageBox.Ok)
else:
new_item["properties"].getProperty("w").setValue(\
QApplication.desktop().width())
new_item["properties"].getProperty("h").setValue(\
QApplication.desktop().height())
new_list_item = self.append_item(parent_list_item,
new_item["name"],
"window",
icon="window_small")
elif item_type == "brick":
brick_type = args[0]
new_item = self.configuration.add_brick(brick_type, parent)
if type(new_item) == bytes:
QMessageBox.warning(self, "Cannot add",
new_item, QMessageBox.Ok)
else:
brick_name = new_item["name"]
brick = new_item["brick"]
new_list_item = self.append_item(parent_list_item,
brick_name,
brick_type,
icon="brick")
elif item_type == "tab":
new_item = self.configuration.add_item(item_type, parent)
if type(new_item) == bytes:
QMessageBox.warning(self, "Cannot add",
new_item, QMessageBox.Ok)
else:
item_name = new_item["name"]
new_list_item = self.append_item(parent_list_item,
item_name,
item_type,
icon=item_type)
else:
item_subtype = args[0]
new_item = self.configuration.add_item(item_subtype, parent)
if type(new_item) == bytes:
QMessageBox.warning(self, "Cannot add",
new_item, QMessageBox.Ok)
else:
item_name = new_item["name"]
new_list_item = self.append_item(parent_list_item,
item_name,
item_type,
icon=item_subtype)
if type(new_item) != bytes and new_item is not None:
self.connect_item(parent, new_item, new_list_item)
self.addWidgetSignal.emit(new_item, parent)
finally:
QApplication.restoreOverrideCursor()
def add_brick(self, brick_type):
"""Adds bricks to the gui"""
self.add_item("brick", str(brick_type))
def add_container(self, container_type, container_subtype=None):
"""Adds container"""
self.add_item(container_type, container_subtype)
def add_item(self, item_type, item_subtype):
"""Adds item"""
current_item = self.tree_widget.currentItem()
if current_item:
item_cfg = self.configuration.find_item(str(current_item.text(0)))
try:
if self.configuration.is_container(item_cfg):
self._add_item(current_item, item_type, item_subtype)
else:
parent_item = current_item.parent()
self._add_item(parent_item, item_type, item_subtype)
except:
QMessageBox.warning(self, "Cannot add %s" % item_type,
"Please select a suitable parent container",
QMessageBox.Ok)
def add_hbox_clicked(self):
"""Adds horizontal box"""
self.add_container("hbox", "hbox")
def add_vbox_clicked(self):
"""Adds vertical box"""
self.add_container("vbox", "vbox")
def add_hgroupbox_clicked(self):
"""Adds horizontal groupbox"""
self.add_container("hgroupbox", "hgroupbox")
def add_vgroupbox_clicked(self):
"""Adds vertical groupbox"""
self.add_container("vgroupbox", "vgroupbox")
def add_hspacer_clicked(self):
"""Adds horizontal spacer"""
self.add_item("hspacer", "hspacer")
def add_vspacer_clicked(self):
"""Adds vertical spacer"""
self.add_item("vspacer", "vspacer")
def add_tab_clicked(self):
"""Adds tab"""
self.add_container("tab")
def add_vsplitter_clicked(self):
"""Adds vertical splitter"""
self.add_container("vsplitter", "vsplitter")
def add_hsplitter_clicked(self):
"""Adds horizontal splitter"""
self.add_container("hsplitter", "hsplitter")
def add_icon_clicked(self):
"""Adds icon"""
self.add_item("icon", "icon")
def add_label_clicked(self):
"""Adds label"""
self.add_item("label", "label")
def preview_item_clicked(self, item_name):
"""Event when user clicks on the widget:
Changes color of widget to selected color and
Refreshes property table
"""
item = self.tree_widget.findItems(str(item_name),
Qt.MatchRecursive, 0)
if item is not None:
self.tree_widget.setCurrentItem(item[0])
self.tree_widget.scrollToItem(item[0],
QAbstractItemView.EnsureVisible)
def item_double_clicked(self, item, column):
"""Item double click event"""
if item and column == 0:
item_name = str(item.text(0))
item_cfg = self.configuration.find_item(item_name)
if item_cfg:
item.setFlags(Qt.ItemIsSelectable |
Qt.ItemIsEnabled |
Qt.ItemIsEditable)
self.item_rename_started = True
self.tree_widget.editItem(item)
item.setFlags(Qt.ItemIsSelectable |
Qt.ItemIsEnabled)
def item_selected(self):
"""Item selected"""
self.item_rename_started = None
item = self.tree_widget.currentItem()
if not item == self.root_element:
item_name = str(item.text(0))
item_cfg = self.configuration.find_item(item_name)
self.update_window_preview(item_name,
item_cfg,
selected_item=item_name)
self.update_properties(item_cfg)
self.showProperyEditorWindowSignal.emit()
def item_changed(self, item, col):
"""Item changed even. Used when item text in column 0
has been changed
"""
if self.item_rename_started:
item_parent_name = str(item.parent().text(0))
new_item_name = str(item.text(0))
old_name = self.configuration.rename(item_parent_name,
item.parent().indexOfChild(item), new_item_name)
if old_name is not None:
item.setText(0, old_name)
QMessageBox.warning(self, "Cannot rename item",
"New name %s conflicts\nwith another item name." % \
new_item_name, QMessageBox.Ok)
def item_drag_dropped(self, source_item, target_item):
"""Drag and drop event"""
dragged_item_name = source_item.text(0)
dropped_on_item_name = target_item.text(0)
source_item_parent_name = str(source_item.parent().text(0))
target_item_parent_name = str(target_item.parent().text(0))