hugobuddel /
orange3
| Total Complexity | 126 |
| Total Lines | 639 |
| Duplicated Lines | 0 % |
Complex classes like Orange.widgets.OWWidget often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
| 1 | |||
| 64 | class OWWidget(QDialog, metaclass=WidgetMetaClass): |
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| 65 | # Global widget count |
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| 66 | widget_id = 0 |
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| 67 | |||
| 68 | # Widget description |
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| 69 | name = None |
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| 70 | id = None |
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| 71 | category = None |
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| 72 | version = None |
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| 73 | description = None |
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| 74 | long_description = None |
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| 75 | icon = "icons/Unknown.png" |
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| 76 | priority = sys.maxsize |
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| 77 | author = None |
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| 78 | author_email = None |
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| 79 | maintainer = None |
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| 80 | maintainer_email = None |
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| 81 | help = None |
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| 82 | help_ref = None |
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| 83 | url = None |
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| 84 | keywords = [] |
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| 85 | background = None |
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| 86 | replaces = None |
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| 87 | inputs = [] |
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| 88 | outputs = [] |
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| 89 | |||
| 90 | # Default widget layout settings |
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| 91 | want_basic_layout = True |
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| 92 | want_main_area = True |
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| 93 | want_control_area = True |
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| 94 | want_graph = False |
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| 95 | show_save_graph = True |
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| 96 | want_status_bar = False |
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| 97 | no_report = False |
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| 98 | |||
| 99 | save_position = True |
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| 100 | resizing_enabled = True |
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| 101 | |||
| 102 | widgetStateChanged = Signal(str, int, str) |
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| 103 | blockingStateChanged = Signal(bool) |
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| 104 | progressBarValueChanged = Signal(float) |
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| 105 | processingStateChanged = Signal(int) |
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| 106 | |||
| 107 | settingsHandler = None |
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| 108 | """:type: SettingsHandler""" |
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| 109 | |||
| 110 | savedWidgetGeometry = settings.Setting(None) |
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| 111 | |||
| 112 | def __new__(cls, parent=None, *args, **kwargs): |
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| 113 | self = super().__new__(cls, None, cls.get_flags()) |
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| 114 | QDialog.__init__(self, None, self.get_flags()) |
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| 115 | |||
| 116 | stored_settings = kwargs.get('stored_settings', None) |
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| 117 | if self.settingsHandler: |
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| 118 | self.settingsHandler.initialize(self, stored_settings) |
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| 119 | |||
| 120 | self.signalManager = kwargs.get('signal_manager', None) |
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| 121 | self.__env = _asmappingproxy(kwargs.get("env", {})) |
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| 122 | |||
| 123 | setattr(self, gui.CONTROLLED_ATTRIBUTES, ControlledAttributesDict(self)) |
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| 124 | self.__reportData = None |
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| 125 | |||
| 126 | OWWidget.widget_id += 1 |
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| 127 | self.widget_id = OWWidget.widget_id |
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| 128 | |||
| 129 | if self.name: |
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| 130 | self.setCaption(self.name) |
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| 131 | |||
| 132 | self.setFocusPolicy(Qt.StrongFocus) |
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| 133 | |||
| 134 | self.startTime = time.time() # used in progressbar |
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| 135 | |||
| 136 | self.widgetState = {"Info": {}, "Warning": {}, "Error": {}} |
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| 137 | |||
| 138 | self.__blocking = False |
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| 139 | # flag indicating if the widget's position was already restored |
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| 140 | self.__was_restored = False |
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| 141 | |||
| 142 | self.__progressBarValue = -1 |
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| 143 | self.__progressState = 0 |
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| 144 | self.__statusMessage = "" |
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| 145 | |||
| 146 | if self.want_basic_layout: |
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| 147 | self.insertLayout() |
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| 148 | |||
| 149 | return self |
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| 150 | |||
| 151 | def __init__(self, *args, **kwargs): |
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| 152 | """QDialog __init__ was already called in __new__, |
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| 153 | please do not call it here.""" |
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| 154 | |||
| 155 | @classmethod |
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| 156 | def get_flags(cls): |
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| 157 | return (Qt.Window if cls.resizing_enabled |
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| 158 | else Qt.Dialog | Qt.MSWindowsFixedSizeDialogHint) |
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| 159 | |||
| 160 | # noinspection PyAttributeOutsideInit |
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| 161 | def insertLayout(self): |
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| 162 | def createPixmapWidget(self, parent, iconName): |
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| 163 | w = QLabel(parent) |
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| 164 | parent.layout().addWidget(w) |
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| 165 | w.setFixedSize(16, 16) |
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| 166 | w.hide() |
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| 167 | if os.path.exists(iconName): |
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| 168 | w.setPixmap(QPixmap(iconName)) |
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| 169 | return w |
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| 170 | |||
| 171 | self.setLayout(QVBoxLayout()) |
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| 172 | self.layout().setMargin(2) |
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| 173 | |||
| 174 | self.warning_bar = gui.widgetBox(self, orientation="horizontal", |
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| 175 | margin=0, spacing=0) |
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| 176 | self.warning_icon = gui.widgetLabel(self.warning_bar, "") |
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| 177 | self.warning_label = gui.widgetLabel(self.warning_bar, "") |
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| 178 | self.warning_label.setStyleSheet("padding-top: 5px") |
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| 179 | self.warning_bar.setSizePolicy(QSizePolicy.Ignored, QSizePolicy.Maximum) |
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| 180 | gui.rubber(self.warning_bar) |
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| 181 | self.warning_bar.setVisible(False) |
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| 182 | |||
| 183 | self.topWidgetPart = gui.widgetBox(self, |
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| 184 | orientation="horizontal", margin=0) |
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| 185 | self.leftWidgetPart = gui.widgetBox(self.topWidgetPart, |
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| 186 | orientation="vertical", margin=0) |
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| 187 | if self.want_main_area: |
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| 188 | self.leftWidgetPart.setSizePolicy( |
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| 189 | QSizePolicy(QSizePolicy.Fixed, QSizePolicy.MinimumExpanding)) |
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| 190 | self.leftWidgetPart.updateGeometry() |
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| 191 | self.mainArea = gui.widgetBox(self.topWidgetPart, |
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| 192 | orientation="vertical", |
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| 193 | sizePolicy=QSizePolicy(QSizePolicy.Expanding, |
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| 194 | QSizePolicy.Expanding), |
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| 195 | margin=0) |
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| 196 | self.mainArea.layout().setMargin(4) |
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| 197 | self.mainArea.updateGeometry() |
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| 198 | |||
| 199 | if self.want_control_area: |
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| 200 | self.controlArea = gui.widgetBox(self.leftWidgetPart, |
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| 201 | orientation="vertical", margin=4) |
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| 202 | |||
| 203 | if self.want_graph and self.show_save_graph: |
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| 204 | graphButtonBackground = gui.widgetBox(self.leftWidgetPart, |
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| 205 | orientation="horizontal", margin=4) |
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| 206 | self.graphButton = gui.button(graphButtonBackground, |
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| 207 | self, "&Save Graph") |
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| 208 | self.graphButton.setAutoDefault(0) |
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| 209 | |||
| 210 | if self.want_status_bar: |
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| 211 | self.widgetStatusArea = QFrame(self) |
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| 212 | self.statusBarIconArea = QFrame(self) |
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| 213 | self.widgetStatusBar = QStatusBar(self) |
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| 214 | |||
| 215 | self.layout().addWidget(self.widgetStatusArea) |
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| 216 | |||
| 217 | self.widgetStatusArea.setLayout(QHBoxLayout(self.widgetStatusArea)) |
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| 218 | self.widgetStatusArea.layout().addWidget(self.statusBarIconArea) |
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| 219 | self.widgetStatusArea.layout().addWidget(self.widgetStatusBar) |
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| 220 | self.widgetStatusArea.layout().setMargin(0) |
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| 221 | self.widgetStatusArea.setFrameShape(QFrame.StyledPanel) |
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| 222 | |||
| 223 | self.statusBarIconArea.setLayout(QHBoxLayout()) |
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| 224 | self.widgetStatusBar.setSizeGripEnabled(0) |
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| 225 | |||
| 226 | self.statusBarIconArea.hide() |
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| 227 | |||
| 228 | self._warningWidget = createPixmapWidget( |
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| 229 | self.statusBarIconArea, |
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| 230 | gui.resource_filename("icons/triangle-orange.png")) |
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| 231 | self._errorWidget = createPixmapWidget( |
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| 232 | self.statusBarIconArea, |
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| 233 | gui.resource_filename("icons/triangle-red.png")) |
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| 234 | |||
| 235 | if not self.resizing_enabled: |
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| 236 | self.layout().setSizeConstraint(QVBoxLayout.SetFixedSize) |
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| 237 | |||
| 238 | def updateStatusBarState(self): |
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| 239 | if not hasattr(self, "widgetStatusArea"): |
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| 240 | return |
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| 241 | if self.widgetState["Warning"] or self.widgetState["Error"]: |
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| 242 | self.widgetStatusArea.show() |
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| 243 | else: |
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| 244 | self.widgetStatusArea.hide() |
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| 245 | |||
| 246 | def setStatusBarText(self, text, timeout=5000): |
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| 247 | if hasattr(self, "widgetStatusBar"): |
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| 248 | self.widgetStatusBar.showMessage(" " + text, timeout) |
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| 249 | |||
| 250 | # TODO add! |
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| 251 | def prepareDataReport(self, data): |
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| 252 | pass |
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| 253 | |||
| 254 | def __restoreWidgetGeometry(self): |
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| 255 | restored = False |
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| 256 | if self.save_position: |
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| 257 | geometry = self.savedWidgetGeometry |
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| 258 | if geometry is not None: |
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| 259 | restored = self.restoreGeometry(QByteArray(geometry)) |
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| 260 | |||
| 261 | if restored and not self.windowState() & \ |
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| 262 | (Qt.WindowMaximized | Qt.WindowFullScreen): |
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| 263 | space = qApp.desktop().availableGeometry(self) |
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| 264 | frame, geometry = self.frameGeometry(), self.geometry() |
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| 265 | |||
| 266 | #Fix the widget size to fit inside the available space |
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| 267 | width = space.width() - (frame.width() - geometry.width()) |
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| 268 | width = min(width, geometry.width()) |
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| 269 | height = space.height() - (frame.height() - geometry.height()) |
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| 270 | height = min(height, geometry.height()) |
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| 271 | self.resize(width, height) |
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| 272 | |||
| 273 | # Move the widget to the center of available space if it is |
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| 274 | # currently outside it |
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| 275 | if not space.contains(self.frameGeometry()): |
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| 276 | x = max(0, space.width() / 2 - width / 2) |
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| 277 | y = max(0, space.height() / 2 - height / 2) |
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| 278 | |||
| 279 | self.move(x, y) |
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| 280 | return restored |
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| 281 | |||
| 282 | def __updateSavedGeometry(self): |
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| 283 | if self.__was_restored and self.isVisible(): |
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| 284 | # Update the saved geometry only between explicit show/hide |
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| 285 | # events (i.e. changes initiated by the user not by Qt's default |
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| 286 | # window management). |
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| 287 | self.savedWidgetGeometry = self.saveGeometry() |
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| 288 | |||
| 289 | # when widget is resized, save the new width and height |
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| 290 | def resizeEvent(self, ev): |
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| 291 | QDialog.resizeEvent(self, ev) |
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| 292 | # Don't store geometry if the widget is not visible |
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| 293 | # (the widget receives a resizeEvent (with the default sizeHint) |
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| 294 | # before first showEvent and we must not overwrite the the |
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| 295 | # savedGeometry with it) |
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| 296 | if self.save_position and self.isVisible(): |
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| 297 | self.__updateSavedGeometry() |
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| 298 | |||
| 299 | def moveEvent(self, ev): |
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| 300 | QDialog.moveEvent(self, ev) |
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| 301 | if self.save_position and self.isVisible(): |
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| 302 | self.__updateSavedGeometry() |
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| 303 | |||
| 304 | # set widget state to hidden |
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| 305 | def hideEvent(self, ev): |
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| 306 | if self.save_position: |
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| 307 | self.__updateSavedGeometry() |
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| 308 | QDialog.hideEvent(self, ev) |
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| 309 | |||
| 310 | def closeEvent(self, ev): |
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| 311 | if self.save_position and self.isVisible(): |
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| 312 | self.__updateSavedGeometry() |
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| 313 | QDialog.closeEvent(self, ev) |
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| 314 | |||
| 315 | def showEvent(self, ev): |
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| 316 | QDialog.showEvent(self, ev) |
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| 317 | if self.save_position and not self.__was_restored: |
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| 318 | # Restore saved geometry on show |
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| 319 | self.__restoreWidgetGeometry() |
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| 320 | self.__was_restored = True |
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| 321 | |||
| 322 | def wheelEvent(self, event): |
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| 323 | """ Silently accept the wheel event. This is to ensure combo boxes |
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| 324 | and other controls that have focus don't receive this event unless |
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| 325 | the cursor is over them. |
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| 326 | """ |
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| 327 | event.accept() |
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| 328 | |||
| 329 | def setCaption(self, caption): |
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| 330 | # we have to save caption title in case progressbar will change it |
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| 331 | self.captionTitle = str(caption) |
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| 332 | self.setWindowTitle(caption) |
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| 333 | |||
| 334 | # put this widget on top of all windows |
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| 335 | def reshow(self): |
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| 336 | self.show() |
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| 337 | self.raise_() |
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| 338 | self.activateWindow() |
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| 339 | |||
| 340 | def send(self, signalName, value, id=None): |
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| 341 | if not any(s.name == signalName for s in self.outputs): |
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| 342 | raise ValueError('{} is not a valid output signal for widget {}'.format( |
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| 343 | signalName, self.name)) |
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| 344 | if self.signalManager is not None: |
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| 345 | self.signalManager.send(self, signalName, value, id) |
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| 346 | |||
| 347 | def __setattr__(self, name, value): |
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| 348 | """Set value to members of this instance or any of its members. |
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| 349 | |||
| 350 | If member is used in a gui control, notify the control about the change. |
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| 351 | |||
| 352 | name: name of the member, dot is used for nesting ("graph.point.size"). |
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| 353 | value: value to set to the member. |
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| 354 | |||
| 355 | """ |
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| 356 | |||
| 357 | names = name.rsplit(".") |
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| 358 | field_name = names.pop() |
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| 359 | obj = reduce(lambda o, n: getattr(o, n, None), names, self) |
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| 360 | if obj is None: |
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| 361 | raise AttributeError("Cannot set '{}' to {} ".format(name, value)) |
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| 362 | |||
| 363 | if obj is self: |
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| 364 | super().__setattr__(field_name, value) |
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| 365 | else: |
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| 366 | setattr(obj, field_name, value) |
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| 367 | |||
| 368 | notify_changed(obj, field_name, value) |
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| 369 | |||
| 370 | if self.settingsHandler: |
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| 371 | self.settingsHandler.fast_save(self, name, value) |
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| 372 | |||
| 373 | def openContext(self, *a): |
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| 374 | self.settingsHandler.open_context(self, *a) |
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| 375 | |||
| 376 | def closeContext(self): |
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| 377 | self.settingsHandler.close_context(self) |
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| 378 | |||
| 379 | def retrieveSpecificSettings(self): |
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| 380 | pass |
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| 381 | |||
| 382 | def storeSpecificSettings(self): |
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| 383 | pass |
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| 384 | |||
| 385 | def saveSettings(self): |
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| 386 | self.settingsHandler.update_defaults(self) |
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| 387 | |||
| 388 | def onDeleteWidget(self): |
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| 389 | """ |
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| 390 | Invoked by the canvas to notify the widget it has been deleted |
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| 391 | from the workflow. |
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| 392 | |||
| 393 | If possible, subclasses should gracefully cancel any currently |
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| 394 | executing tasks. |
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| 395 | """ |
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| 396 | pass |
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| 397 | |||
| 398 | def handleNewSignals(self): |
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| 399 | """ |
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| 400 | Invoked by the workflow signal propagation manager after all |
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| 401 | signals handlers have been called. |
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| 402 | |||
| 403 | Reimplement this method in order to coalesce updates from |
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| 404 | multiple updated inputs. |
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| 405 | """ |
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| 406 | pass |
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| 407 | |||
| 408 | # ############################################ |
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| 409 | # PROGRESS BAR FUNCTIONS |
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| 410 | |||
| 411 | def progressBarInit(self, processEvents=QEventLoop.AllEvents): |
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| 412 | """ |
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| 413 | Initialize the widget's progress (i.e show and set progress to 0%). |
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| 414 | |||
| 415 | .. note:: |
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| 416 | This method will by default call `QApplication.processEvents` |
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| 417 | with `processEvents`. To suppress this behavior pass |
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| 418 | ``processEvents=None``. |
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| 419 | |||
| 420 | :param processEvents: Process events flag |
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| 421 | :type processEvents: `QEventLoop.ProcessEventsFlags` or `None` |
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| 422 | """ |
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| 423 | self.startTime = time.time() |
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| 424 | self.setWindowTitle(self.captionTitle + " (0% complete)") |
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| 425 | |||
| 426 | if self.__progressState != 1: |
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| 427 | self.__progressState = 1 |
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| 428 | self.processingStateChanged.emit(1) |
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| 429 | |||
| 430 | self.progressBarSet(0, processEvents) |
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| 431 | |||
| 432 | def progressBarSet(self, value, processEvents=QEventLoop.AllEvents): |
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| 433 | """ |
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| 434 | Set the current progress bar to `value`. |
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| 435 | |||
| 436 | .. note:: |
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| 437 | This method will by default call `QApplication.processEvents` |
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| 438 | with `processEvents`. To suppress this behavior pass |
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| 439 | ``processEvents=None``. |
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| 440 | |||
| 441 | :param float value: Progress value |
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| 442 | :param processEvents: Process events flag |
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| 443 | :type processEvents: `QEventLoop.ProcessEventsFlags` or `None` |
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| 444 | """ |
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| 445 | old = self.__progressBarValue |
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| 446 | self.__progressBarValue = value |
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| 447 | |||
| 448 | if value > 0: |
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| 449 | if self.__progressState != 1: |
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| 450 | warnings.warn("progressBarSet() called without a " |
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| 451 | "preceding progressBarInit()", |
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| 452 | stacklevel=2) |
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| 453 | self.__progressState = 1 |
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| 454 | self.processingStateChanged.emit(1) |
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| 455 | |||
| 456 | usedTime = max(1, time.time() - self.startTime) |
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| 457 | totalTime = (100.0 * usedTime) / float(value) |
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| 458 | remainingTime = max(0, totalTime - usedTime) |
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| 459 | h = int(remainingTime / 3600) |
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| 460 | min = int((remainingTime - h * 3600) / 60) |
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| 461 | sec = int(remainingTime - h * 3600 - min * 60) |
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| 462 | if h > 0: |
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| 463 | text = "%(h)d:%(min)02d:%(sec)02d" % vars() |
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| 464 | else: |
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| 465 | text = "%(min)d:%(sec)02d" % vars() |
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| 466 | self.setWindowTitle(self.captionTitle + |
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| 467 | " (%(value).2f%% complete, remaining time: %(text)s)" % vars()) |
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| 468 | else: |
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| 469 | self.setWindowTitle(self.captionTitle + " (0% complete)") |
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| 470 | |||
| 471 | if old != value: |
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| 472 | self.progressBarValueChanged.emit(value) |
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| 473 | |||
| 474 | if processEvents is not None and processEvents is not False: |
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| 475 | qApp.processEvents(processEvents) |
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| 476 | |||
| 477 | def progressBarValue(self): |
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| 478 | return self.__progressBarValue |
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| 479 | |||
| 480 | progressBarValue = pyqtProperty(float, fset=progressBarSet, |
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| 481 | fget=progressBarValue) |
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| 482 | |||
| 483 | processingState = pyqtProperty(int, fget=lambda self: self.__progressState) |
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| 484 | |||
| 485 | def progressBarAdvance(self, value, processEvents=QEventLoop.AllEvents): |
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| 486 | self.progressBarSet(self.progressBarValue + value, processEvents) |
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| 487 | |||
| 488 | def progressBarFinished(self, processEvents=QEventLoop.AllEvents): |
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| 489 | """ |
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| 490 | Stop the widget's progress (i.e hide the progress bar). |
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| 491 | |||
| 492 | .. note:: |
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| 493 | This method will by default call `QApplication.processEvents` |
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| 494 | with `processEvents`. To suppress this behavior pass |
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| 495 | ``processEvents=None``. |
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| 496 | |||
| 497 | :param processEvents: Process events flag |
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| 498 | :type processEvents: `QEventLoop.ProcessEventsFlags` or `None` |
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| 499 | """ |
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| 500 | self.setWindowTitle(self.captionTitle) |
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| 501 | if self.__progressState != 0: |
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| 502 | self.__progressState = 0 |
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| 503 | self.processingStateChanged.emit(0) |
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| 504 | |||
| 505 | if processEvents is not None and processEvents is not False: |
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| 506 | qApp.processEvents(processEvents) |
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| 507 | |||
| 508 | #: Widget's status message has changed. |
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| 509 | statusMessageChanged = Signal(str) |
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| 510 | |||
| 511 | def setStatusMessage(self, text): |
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| 512 | if self.__statusMessage != text: |
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| 513 | self.__statusMessage = text |
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| 514 | self.statusMessageChanged.emit(text) |
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| 515 | |||
| 516 | def statusMessage(self): |
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| 517 | return self.__statusMessage |
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| 518 | |||
| 519 | def keyPressEvent(self, e): |
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| 520 | if (int(e.modifiers()), e.key()) in OWWidget.defaultKeyActions: |
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| 521 | OWWidget.defaultKeyActions[int(e.modifiers()), e.key()](self) |
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| 522 | else: |
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| 523 | QDialog.keyPressEvent(self, e) |
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| 524 | |||
| 525 | def information(self, id=0, text=None): |
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| 526 | self.setState("Info", id, text) |
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| 527 | |||
| 528 | def warning(self, id=0, text=""): |
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| 529 | self.setState("Warning", id, text) |
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| 530 | |||
| 531 | def error(self, id=0, text=""): |
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| 532 | self.setState("Error", id, text) |
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| 533 | |||
| 534 | def setState(self, state_type, id, text): |
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| 535 | changed = 0 |
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| 536 | if type(id) == list: |
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| 537 | for val in id: |
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| 538 | if val in self.widgetState[state_type]: |
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| 539 | self.widgetState[state_type].pop(val) |
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| 540 | changed = 1 |
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| 541 | else: |
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| 542 | if type(id) == str: |
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| 543 | text = id |
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| 544 | id = 0 |
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| 545 | if not text: |
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| 546 | if id in self.widgetState[state_type]: |
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| 547 | self.widgetState[state_type].pop(id) |
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| 548 | changed = 1 |
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| 549 | else: |
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| 550 | self.widgetState[state_type][id] = text |
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| 551 | changed = 1 |
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| 552 | |||
| 553 | if changed: |
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| 554 | if type(id) == list: |
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| 555 | for i in id: |
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| 556 | self.widgetStateChanged.emit(state_type, i, "") |
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| 557 | else: |
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| 558 | self.widgetStateChanged.emit(state_type, id, text or "") |
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| 559 | |||
| 560 | tooltip_lines = [] |
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| 561 | highest_type = None |
||
| 562 | for a_type in ("Error", "Warning", "Info"): |
||
| 563 | msgs_for_ids = self.widgetState.get(a_type) |
||
| 564 | if not msgs_for_ids: |
||
| 565 | continue |
||
| 566 | msgs_for_ids = list(msgs_for_ids.values()) |
||
| 567 | if not msgs_for_ids: |
||
| 568 | continue |
||
| 569 | tooltip_lines += msgs_for_ids |
||
| 570 | if highest_type is None: |
||
| 571 | highest_type = a_type |
||
| 572 | |||
| 573 | if highest_type is None: |
||
| 574 | self.set_warning_bar(None) |
||
| 575 | elif len(tooltip_lines) == 1: |
||
| 576 | msg = tooltip_lines[0] |
||
| 577 | if "\n" in msg: |
||
| 578 | self.set_warning_bar( |
||
| 579 | highest_type, msg[:msg.index("\n")] + " (...)", msg) |
||
| 580 | else: |
||
| 581 | self.set_warning_bar( |
||
| 582 | highest_type, tooltip_lines[0], tooltip_lines[0]) |
||
| 583 | else: |
||
| 584 | self.set_warning_bar( |
||
| 585 | highest_type, |
||
| 586 | "{} problems during execution".format(len(tooltip_lines)), |
||
| 587 | "\n".join(tooltip_lines)) |
||
| 588 | |||
| 589 | return changed |
||
| 590 | |||
| 591 | def set_warning_bar(self, state_type, text=None, tooltip=None): |
||
| 592 | colors = {"Error": ("#ffc6c6", "black", QStyle.SP_MessageBoxCritical), |
||
| 593 | "Warning": ("#ffffc9", "black", QStyle.SP_MessageBoxWarning), |
||
| 594 | "Info": ("#ceceff", "black", QStyle.SP_MessageBoxInformation)} |
||
| 595 | current_height = self.height() |
||
| 596 | if state_type is None: |
||
| 597 | if not self.warning_bar.isHidden(): |
||
| 598 | new_height = current_height - self.warning_bar.height() |
||
| 599 | self.warning_bar.setVisible(False) |
||
| 600 | self.resize(self.width(), new_height) |
||
| 601 | return |
||
| 602 | background, foreground, icon = colors[state_type] |
||
| 603 | style = QApplication.instance().style() |
||
| 604 | self.warning_icon.setPixmap(style.standardIcon(icon).pixmap(14, 14)) |
||
| 605 | |||
| 606 | self.warning_bar.setStyleSheet( |
||
| 607 | "background-color: {}; color: {};" |
||
| 608 | "padding: 3px; padding-left: 6px; vertical-align: center". |
||
| 609 | format(background, foreground)) |
||
| 610 | self.warning_label.setText(text) |
||
| 611 | self.warning_bar.setToolTip(tooltip) |
||
| 612 | if self.warning_bar.isHidden(): |
||
| 613 | self.warning_bar.setVisible(True) |
||
| 614 | new_height = current_height + self.warning_bar.height() |
||
| 615 | self.resize(self.width(), new_height) |
||
| 616 | |||
| 617 | def widgetStateToHtml(self, info=True, warning=True, error=True): |
||
| 618 | iconpaths = { |
||
| 619 | "Info": gui.resource_filename("icons/information.png"), |
||
| 620 | "Warning": gui.resource_filename("icons/warning.png"), |
||
| 621 | "Error": gui.resource_filename("icons/error.png") |
||
| 622 | } |
||
| 623 | items = [] |
||
| 624 | |||
| 625 | for show, what in [(info, "Info"), (warning, "Warning"), |
||
| 626 | (error, "Error")]: |
||
| 627 | if show and self.widgetState[what]: |
||
| 628 | items.append('<img src="%s" style="float: left;"> %s' % |
||
| 629 | (iconpaths[what], |
||
| 630 | "\n".join(self.widgetState[what].values()))) |
||
| 631 | return "<br>".join(items) |
||
| 632 | |||
| 633 | @classmethod |
||
| 634 | def getWidgetStateIcons(cls): |
||
| 635 | if not hasattr(cls, "_cached__widget_state_icons"): |
||
| 636 | info = QPixmap(gui.resource_filename("icons/information.png")) |
||
| 637 | warning = QPixmap(gui.resource_filename("icons/warning.png")) |
||
| 638 | error = QPixmap(gui.resource_filename("icons/error.png")) |
||
| 639 | cls._cached__widget_state_icons = \ |
||
| 640 | {"Info": info, "Warning": warning, "Error": error} |
||
| 641 | return cls._cached__widget_state_icons |
||
| 642 | |||
| 643 | defaultKeyActions = {} |
||
| 644 | |||
| 645 | if sys.platform == "darwin": |
||
| 646 | defaultKeyActions = { |
||
| 647 | (Qt.ControlModifier, Qt.Key_M): |
||
| 648 | lambda self: self.showMaximized |
||
| 649 | if self.isMinimized() else self.showMinimized(), |
||
| 650 | (Qt.ControlModifier, Qt.Key_W): |
||
| 651 | lambda self: self.setVisible(not self.isVisible())} |
||
| 652 | |||
| 653 | def setBlocking(self, state=True): |
||
| 654 | """ |
||
| 655 | Set blocking flag for this widget. |
||
| 656 | |||
| 657 | While this flag is set this widget and all its descendants |
||
| 658 | will not receive any new signals from the workflow signal manager. |
||
| 659 | |||
| 660 | This is useful for instance if the widget does it's work in a |
||
| 661 | separate thread or schedules processing from the event queue. |
||
| 662 | In this case it can set the blocking flag in it's processNewSignals |
||
| 663 | method schedule the task and return immediately. After the task |
||
| 664 | has completed the widget can clear the flag and send the updated |
||
| 665 | outputs. |
||
| 666 | |||
| 667 | .. note:: |
||
| 668 | Failure to clear this flag will block dependent nodes forever. |
||
| 669 | """ |
||
| 670 | if self.__blocking != state: |
||
| 671 | self.__blocking = state |
||
| 672 | self.blockingStateChanged.emit(state) |
||
| 673 | |||
| 674 | def isBlocking(self): |
||
| 675 | """ |
||
| 676 | Is this widget blocking signal processing. |
||
| 677 | """ |
||
| 678 | return self.__blocking |
||
| 679 | |||
| 680 | def resetSettings(self): |
||
| 681 | self.settingsHandler.reset_settings(self) |
||
| 682 | |||
| 683 | def workflowEnv(self): |
||
| 684 | """ |
||
| 685 | Return (a view to) the workflow runtime environment. |
||
| 686 | |||
| 687 | Returns |
||
| 688 | ------- |
||
| 689 | env : types.MappingProxyType |
||
| 690 | """ |
||
| 691 | return self.__env |
||
| 692 | |||
| 693 | def workflowEnvChanged(self, key, value, oldvalue): |
||
| 694 | """ |
||
| 695 | A workflow environment variable `key` has changed to value. |
||
| 696 | |||
| 697 | Called by the canvas framework to notify widget of a change |
||
| 698 | in the workflow runtime environment. |
||
| 699 | |||
| 700 | The default implementation does nothing. |
||
| 701 | """ |
||
| 702 | pass |
||
| 703 | |||
| 723 |
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