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How to use picker method in Molotov

Best Python code snippet using molotov_python

MyWindowController.py

Source:MyWindowController.py

1import objc2import Cocoa3# date/time element popup selections:4kNSHourMinuteDatePickerElementFlag = 05kNSHourMinuteSecondDatePickerElementFlag = 16kNSTimeZoneDatePickerElementFlag = 27kNSYearMonthDatePickerElementFlag = 08kNSYearMonthDayDatePickerElementFlag = 19kNSEraDatePickerElementFlag = 210kSingleDateMode = 011kRangeDateMode = 112class MyWindowController (Cocoa.NSWindowController):13    datePickerControl = objc.ivar()14    shrinkGrowFactor = objc.ivar.int()15    outerBox                = objc.IBOutlet()16    datePickerPlaceHolder   = objc.IBOutlet()17    dateResult1             = objc.IBOutlet()18    dateResult2             = objc.IBOutlet()19    dateResult3             = objc.IBOutlet()20    dateResult4             = objc.IBOutlet()21    dateResult5             = objc.IBOutlet()22    # appearance23    pickerStylePopup        = objc.IBOutlet()24    drawsBackgroundCheck    = objc.IBOutlet()25    bezeledCheck            = objc.IBOutlet()26    borderedCheck           = objc.IBOutlet()27    backColorWell           = objc.IBOutlet()28    textColorWell           = objc.IBOutlet()29    fontSizePopup           = objc.IBOutlet()30    # date and time31    dateElementChecks       = objc.IBOutlet()32    timeElementChecks       = objc.IBOutlet()33    overrideDateCheck       = objc.IBOutlet()34    overrideDate            = objc.IBOutlet()35    # date range36    datePickerModeRadios    = objc.IBOutlet()37    secondsRangeEdit        = objc.IBOutlet()38    secondsRangeEditLabel   = objc.IBOutlet()39    minDatePicker           = objc.IBOutlet()40    maxDatePicker           = objc.IBOutlet()41    setMinDateButton        = objc.IBOutlet()42    setMaxDateButton        = objc.IBOutlet()43    clearMinDateButton      = objc.IBOutlet()44    clearMaxDateButton      = objc.IBOutlet()45    def awakeFromNib(self):46        # based our date formatter on CFDateFormatter: allows more configurability and better localization47        Cocoa.NSDateFormatter.setDefaultFormatterBehavior_(Cocoa.NSDateFormatterBehavior10_4)48        self.setupDatePickerControl_(Cocoa.NSClockAndCalendarDatePickerStyle)49        # setup the initial Cocoa.NSDatePickerElementFlags since we are using picker style:50        # Cocoa.NSClockAndCalendarDatePickerStyle51        flags = (52                  Cocoa.NSYearMonthDatePickerElementFlag53                | Cocoa.NSYearMonthDayDatePickerElementFlag54                | Cocoa.NSEraDatePickerElementFlag55                | Cocoa.NSHourMinuteDatePickerElementFlag56                | Cocoa.NSHourMinuteSecondDatePickerElementFlag57                | Cocoa.NSTimeZoneDatePickerElementFlag58            )59        self.datePickerControl.setDatePickerElements_(flags)60        self.datePickerModeRadios.cellWithTag_(1).setEnabled_(False)   # not currently implemened in 10.4.x and earlier61        self.minDatePicker.setDateValue_(Cocoa.NSDate.date())62        self.maxDatePicker.setDateValue_(Cocoa.NSDate.distantFuture())63        self.updateControls()        # force update of all UI elements and the picker itself64    def applicationShouldTerminateAfterLastWindowClosed_(self, sender):65        return True66    def setupDatePickerControl_(self, pickerStyle):67        # we need to re-create the picker control (due to a resize bug when switching between styles)68        if self.datePickerControl is not None:        # hide and release the previous date picker, if any69            self.datePickerControl.setHidden_(True)70            self.datePickerControl.setNeedsDisplay_(True)71            self.datePickerControl = None72        frame = self.datePickerPlaceHolder.frame()73        self.shrinkGrowFactor = frame.size.height - 3074        # create the date picker control if not created already75        if self.datePickerControl is None:76            self.datePickerControl = Cocoa.NSDatePicker.alloc().initWithFrame_(frame)77        self.datePickerControl.setFrameOrigin_(Cocoa.NSMakePoint(1,0))        # nudge the control placement a little78        self.datePickerControl.setDatePickerStyle_(pickerStyle)        # set our desired picker style79        self.datePickerPlaceHolder.addSubview_(self.datePickerControl)        # embed into our placeholder80        self.datePickerControl.setDrawsBackground_(True)81        self.datePickerControl.setBezeled_(True)82        self.datePickerControl.setBordered_(False)83        self.datePickerControl.setEnabled_(True)84        self.datePickerControl.setTextColor_(self.textColorWell.color())85        self.datePickerControl.setBackgroundColor_(self.backColorWell.color())86        # always set the date/time to TODAY87        # note that our delete override might block this...88        self.datePickerControl.setDateValue_(Cocoa.NSDate.date())89        self.datePickerControl.setNeedsDisplay_(True)90        self.updateControls()        # force update of all UI elements and the picker itself91        # synch the picker style popup with the new style change92        self.pickerStylePopup.selectItemWithTag_(pickerStyle)93        # we want to be the cell's delegate to catch date validation94        self.datePickerControl.setDelegate_(self)95        # or we can set us as the delegate to its cell like so:96        #                self.datePickerControl.cell().setDelegate_(self)97        # we want to respond to date/time changes98        self.datePickerControl.setAction_('datePickerAction:')99    def updateDateResult(self):100        theDate = self.datePickerControl.dateValue()101        if theDate is not None:102            formatter = Cocoa.NSDateFormatter.alloc().init()103            # some examples:104            # formatter.setDateStyle_(Cocoa.NSDateFormatterNoStyle)            # <no date displayed>105            # formatter.setDateStyle_(Cocoa.NSDateFormatterMediumStyle)        # Jan 24, 1984106            # formatter.setDateStyle_(Cocoa.NSDateFormatterShortStyle)         # 1/24/84107            # formatter.setDateStyle_(Cocoa.NSDateFormatterLongStyle)          # January 24, 1984108            # formatter.setDateStyle_(Cocoa.NSDateFormatterFullStyle)          # Tuesday, January 24, 1984109            #110            # formatter.setTimeStyle_(Cocoa.NSDateFormatterNoStyle)            # <no time displayed>111            # formatter.setTimeStyle_(Cocoa.NSDateFormatterShortStyle)         # 2:44 PM112            # formatter.setTimeStyle_(Cocoa.NSDateFormatterMediumStyle)        # 2:44:55 PM113            # formatter.setTimeStyle_(Cocoa.NSDateFormatterLongStyle)          # 2:44:55 PM PDT114            # formatter.setTimeStyle_(Cocoa.NSDateFormatterFullStyle)          # 2:44:55 PM PDT115            #116            formatter.setDateStyle_(Cocoa.NSDateFormatterShortStyle)117            formatter.setTimeStyle_(Cocoa.NSDateFormatterNoStyle)118            formattedDateString = formatter.stringFromDate_(theDate)119            self.dateResult1.setStringValue_(formattedDateString)120            formatter.setDateStyle_(Cocoa.NSDateFormatterShortStyle)121            formatter.setTimeStyle_(Cocoa.NSDateFormatterShortStyle)122            formattedDateString = formatter.stringFromDate_(theDate)123            self.dateResult2.setStringValue_(formattedDateString)124            formatter.setDateStyle_(Cocoa.NSDateFormatterMediumStyle)125            formatter.setTimeStyle_(Cocoa.NSDateFormatterShortStyle)126            formattedDateString = formatter.stringFromDate_(theDate)127            self.dateResult3.setStringValue_(formattedDateString)128            formatter.setDateStyle_(Cocoa.NSDateFormatterLongStyle)129            formatter.setTimeStyle_(Cocoa.NSDateFormatterShortStyle)130            formattedDateString = formatter.stringFromDate_(theDate)131            self.dateResult4.setStringValue_(formattedDateString)132            formatter.setDateStyle_(Cocoa.NSDateFormatterFullStyle)133            formatter.setTimeStyle_(Cocoa.NSDateFormatterFullStyle)134            formattedDateString = formatter.stringFromDate_(theDate)135            self.dateResult5.setStringValue_(formattedDateString)136    def updateControls(self):137        self.datePickerControl.setNeedsDisplay_(True) # force it to update138        self.updateDatePickerMode()139        self.updateDateTimeElementFlags()140        self.updateDateResult()141    @objc.IBAction142    def setPickerStyle_(self, sender):143        tag = sender.selectedCell().tag()144        windowFrame = self.window().frame()145        boxFrame = self.outerBox.frame()146        self.datePickerControl.setHidden_(True)147        if tag == Cocoa.NSClockAndCalendarDatePickerStyle:148            # for this picker style, we need to grow the window to make room149            windowFrame.size.height += self.shrinkGrowFactor;150            windowFrame.origin.y -= self.shrinkGrowFactor;151            boxFrame.size.height += self.shrinkGrowFactor;152            self.outerBox.setFrame_(boxFrame)153            self.window().setFrame_display_animate_(windowFrame, True, True)154            # set our desired picker style155            self.datePickerControl.setDatePickerStyle_(Cocoa.NSClockAndCalendarDatePickerStyle)156            # shows these last157            self.dateResult1.setHidden_(False)158            self.dateResult2.setHidden_(False)159            self.dateResult3.setHidden_(False)160            self.dateResult4.setHidden_(False)161        else:162            currentPickerStyle = self.datePickerControl.datePickerStyle()163            # shrink the window only if the current style is "clock and calendar"164            if currentPickerStyle == Cocoa.NSClockAndCalendarDatePickerStyle:165                # hide these first166                self.dateResult1.setHidden_(True)167                self.dateResult2.setHidden_(True)168                self.dateResult3.setHidden_(True)169                self.dateResult4.setHidden_(True)170                windowFrame.size.height -= self.shrinkGrowFactor171                windowFrame.origin.y += self.shrinkGrowFactor172                boxFrame.size.height -= self.shrinkGrowFactor173                self.outerBox.setFrame_(boxFrame)174                self.window().setFrame_display_animate_(windowFrame, True, True)175            self.setupDatePickerControl_(tag) # set our desired picker style176        self.datePickerControl.setHidden_(False)177        self.updateControls()        # force update of all UI elements and the picker itself178    @objc.IBAction179    def setFontSize_(self, sender):180        tag = sender.selectedCell().tag()181        if tag == Cocoa.NSMiniControlSize:182            self.datePickerControl.cell().setControlSize_(Cocoa.NSMiniControlSize)183            self.datePickerControl.cell().setFont_(Cocoa.NSFont.systemFontOfSize_(9.0))184        elif tag == Cocoa.NSSmallControlSize:185            self.datePickerControl.cell().setControlSize_(Cocoa.NSSmallControlSize)186            self.datePickerControl.cell().setFont_(Cocoa.NSFont.systemFontOfSize_(11.0))187        elif tag == Cocoa.NSRegularControlSize:188            self.datePickerControl.cell().setControlSize_(Cocoa.NSRegularControlSize)189            self.datePickerControl.cell().setFont_(Cocoa.NSFont.systemFontOfSize_(13.0))190    @objc.IBAction191    def datePickerAction_(self, sender):192        self.updateDateResult()193    @objc.IBAction194    def dateOverrideAction_(self, sender):195        checked = sender.selectedCell().state()196        if checked:197            self.datePickerControl.setDelegate_(self)198        else:199            self.datePickerControl.setDelegate_(None)200        self.datePickerControl.setDateValue_(Cocoa.NSDate.date()) # force the delete "datePickerCell" to be called201    def datePickerCell_validateProposedDateValue_timeInterval_(self, aDatePickerCell, proposedDateValue, proposedTimeInterval):202        controller = aDatePickerCell.delegate()203        if controller is self and aDatePickerCell is self.datePickerControl.cell():204            # override the date and time?205            if self.overrideDateCheck.cell().state():206                # override the date using the user specified date207                return (self.overrideDate.dateValue(), proposedTimeInterval)208        return (proposedDateValue, proposedTimeInterval)209    @objc.IBAction210    def setDrawsBackground_(self, sender):211        self.datePickerControl.setDrawsBackground_(sender.state())212    @objc.IBAction213    def setBackgroundColor_(self, sender):214        newColor = sender.color()215        self.datePickerControl.setBackgroundColor_(newColor)216    @objc.IBAction217    def setTextColor_(self, sender):218        newColor = sender.color()219        self.datePickerControl.setTextColor_(newColor)220    @objc.IBAction221    def setBezeled_(self, sender):222        self.datePickerControl.setBezeled_(sender.state())223    @objc.IBAction224    def setBordered_(self, sender):225        self.datePickerControl.setBordered_(sender.state())226    @objc.IBAction227    def setDateElementFlags_(self, sender):228        tag = sender.selectedCell().tag()229        flags = self.datePickerControl.datePickerElements()230        checked = sender.selectedCell().state()231        if tag == kNSYearMonthDatePickerElementFlag:232            if checked:233                flags |= Cocoa.NSYearMonthDatePickerElementFlag234            else:235                flags ^= Cocoa.NSYearMonthDatePickerElementFlag236        elif tag == kNSYearMonthDayDatePickerElementFlag:237            if checked:238                flags |= Cocoa.NSYearMonthDayDatePickerElementFlag239            else:240                flags ^= Cocoa.NSYearMonthDayDatePickerElementFlag241        elif tag == kNSEraDatePickerElementFlag:242            if checked:243                flags |= Cocoa.NSEraDatePickerElementFlag244            else:245                flags ^= Cocoa.NSEraDatePickerElementFlag246        self.datePickerControl.setDatePickerElements_(flags)247        self.updateControls() # force update of all UI elements and the picker itself248    @objc.IBAction249    def setTimeElementFlags_(self, sender):250        tag = sender.selectedCell().tag()251        flags = self.datePickerControl.datePickerElements()252        checked = sender.selectedCell().state()253        if tag == kNSHourMinuteDatePickerElementFlag:254            if checked:255                flags |= Cocoa.NSHourMinuteDatePickerElementFlag256            else:257                flags ^= Cocoa.NSHourMinuteDatePickerElementFlag258        elif tag == kNSHourMinuteSecondDatePickerElementFlag:259            if checked:260                flags |= Cocoa.NSHourMinuteSecondDatePickerElementFlag261            else:262                flags ^= Cocoa.NSHourMinuteSecondDatePickerElementFlag263        elif tag == kNSTimeZoneDatePickerElementFlag:264            if checked:265                flags |= Cocoa.NSTimeZoneDatePickerElementFlag266            else:267                flags ^= Cocoa.NSTimeZoneDatePickerElementFlag268        self.datePickerControl.setDatePickerElements_(flags)269        self.updateControls() # force update of all UI elements and the picker itself270    def updateDateTimeElementFlags(self):271        elementFlags = self.datePickerControl.datePickerElements()272        # time elements273        if (elementFlags & Cocoa.NSHourMinuteDatePickerElementFlag) != 0:274            self.timeElementChecks.selectCellWithTag_(0)275        if (elementFlags & Cocoa.NSHourMinuteSecondDatePickerElementFlag) != 0:276            self.timeElementChecks.selectCellWithTag_(1)277        if (elementFlags & Cocoa.NSTimeZoneDatePickerElementFlag) != 0:278            self.timeElementChecks.selectCellWithTag_(2)279        # date elements280        if (elementFlags & Cocoa.NSYearMonthDatePickerElementFlag) != 0:281            self.dateElementChecks.selectCellWithTag_(0)282        if (elementFlags & Cocoa.NSYearMonthDayDatePickerElementFlag) != 0:283            self.dateElementChecks.selectCellWithTag_(1)284        if (elementFlags & Cocoa.NSEraDatePickerElementFlag) != 0:285            self.dateElementChecks.selectCellWithTag_(2)286    @objc.IBAction287    def setMinDate_(self, sender):288        self.datePickerControl.setMinDate_(self.minDatePicker.dateValue())289        self.setMinDateButton.setEnabled_(False)290        self.clearMinDateButton.setEnabled_(True)291    @objc.IBAction292    def setMaxDate_(self, sender):293        self.datePickerControl.setMaxDate_(self.maxDatePicker.dateValue())294        self.setMaxDateButton.setEnabled_(False)295        self.clearMaxDateButton.setEnabled_(True)296    @objc.IBAction297    def clearMinDate_(self, sender):298        self.datePickerControl.setMinDate_(NSDate.distantPast())299        self.clearMinDateButton.setEnabled_(False)300        self.setMinDateButton.setEnabled_(True)301    @objc.IBAction302    def clearMaxDate_(self, sender):303        self.datePickerControl.setMaxDate_(NSDate.distantFuture())304        self.clearMaxDateButton.setEnabled_(False)305        self.setMaxDateButton.setEnabled_(True)306    @objc.IBAction307    def setDatePickerMode_(self, sender):308        tag = sender.selectedCell().tag()309        if tag == kSingleDateMode:310            self.datePickerControl.setDatePickerMode_(NSSingleDateMode)311        elif tag == kRangeDateMode:312            self.datePickerControl.setDatePickerMode_(NSRangeDateMode)313        self.updateControls() # force update of all UI elements and the picker itself314    def updateDatePickerMode(self):315        mode = self.datePickerControl.datePickerMode()316        if mode == Cocoa.NSSingleDateMode:317            self.datePickerModeRadios.selectCellWithTag_(0)318            # interval value not applicable:319            self.secondsRangeEdit.setEnabled_(False)320            self.secondsRangeEditLabel.setTextColor_(Cocoa.NSColor.lightGrayColor())321            self.datePickerControl.setTimeInterval_(0)322        elif mode == Cocoa.NSRangeDateMode:323            self.datePickerModeRadios.selectCellWithTag_(1)324            # interval value applies:325            self.secondsRangeEdit.setEnabled_(True)326            self.secondsRangeEditLabel.setTextColor_(Cocoa.NSColor.blackColor())327            # set the date range by start date (here we use the current date in the date picker328            # control), and time interval (in seconds)329            secsStr = self.secondsRangeEdit.stringValue()330            numSeconds = int(secsStr)331            self.datePickerControl.setTimeInterval_(numSeconds)332    def controlTextDidEndEditing_(self, notification):...

selection.py

Source:selection.py

1from rubicon.objc import CGSize, objc_method2from travertino.size import at_least3from toga_iOS.libs import UIColor, UIPickerView, UITextBorderStyle, UITextField4from toga_iOS.widgets.base import Widget5class TogaPickerView(UIPickerView):6    @objc_method7    def numberOfComponentsInPickerView_(self, pickerView) -> int:8        return 19    @objc_method10    def pickerView_numberOfRowsInComponent_(self, pickerView, component: int) -> int:11        return len(self.interface.items)12    @objc_method13    def pickerView_titleForRow_forComponent_(self, pickerView, row: int, component: int):14        return str(self.interface.items[row])15    @objc_method16    def pickerView_didSelectRow_inComponent_(self, pickerView, row: int, component: int):17        self.native.text = self.interface.items[row]18        if self.interface.on_select:19            self.interface.on_select(self.interface)20class Selection(Widget):21    def create(self):22        self.native = UITextField.alloc().init()23        self.native.interface = self.interface24        self.native.tintColor = UIColor.clearColor25        self.native.borderStyle = UITextBorderStyle.RoundedRect26        self.picker = TogaPickerView.alloc().init()27        self.picker.interface = self.interface28        self.picker.native = self.native29        self.picker.delegate = self.picker30        self.picker.dataSource = self.picker31        self.native.inputView = self.picker32        self.native.delegate = self.picker33        self.add_constraints()34    def rehint(self):35        # Height of a text input is known.36        fitting_size = self.native.systemLayoutSizeFittingSize(CGSize(0, 0))37        self.interface.intrinsic.width = at_least(fitting_size.width)38        self.interface.intrinsic.height = fitting_size.height39    def remove_all_items(self):40        # No special handling required41        pass42    def add_item(self, item):43        if not self.native.text:44            self.native.text = item45    def select_item(self, item):46        self.interface.factory.not_implemented('Selection.select_item()')47    def get_selected_item(self):48        return self.interface.items[self.picker.selectedRowInComponent(0)]49    def set_on_select(self, handler):50        # No special handling required...

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