subsurface/mobile-widgets/qml/main.qml

// SPDX-License-Identifier: GPL-2.0
import QtQuick 2.6
import QtQuick.Controls 2.0
import QtQuick.Controls.Material 2.1
import QtQuick.Window 2.2
import QtQuick.Dialogs 1.2
import QtQuick.Layouts 1.2
import QtQuick.Window 2.2
import org.subsurfacedivelog.mobile 1.0
import org.kde.kirigami 2.4 as Kirigami
import QtGraphicalEffects 1.0

Kirigami.ApplicationWindow {
	id: rootItem
	title: qsTr("Subsurface-mobile")
	reachableModeEnabled: false // while it's a good idea, it seems to confuse more than help
	wideScreen: false // workaround for probably Kirigami bug. See commits.

	// the documentation claims that the ApplicationWindow should pick up the font set on
	// the C++ side. But as a matter of fact, it doesn't, unless you add this line:
	font: Qt.application.font

	pageStack.globalToolBar.style: Kirigami.ApplicationHeaderStyle.Breadcrumb
	pageStack.globalToolBar.showNavigationButtons: (Kirigami.ApplicationHeaderStyle.ShowBackButton | Kirigami.ApplicationHeaderStyle.ShowForwardButton)
	pageStack.globalToolBar.minimumHeight: 0
	pageStack.globalToolBar.preferredHeight: Math.round(Kirigami.Units.gridUnit * (Qt.platform.os == "ios" ? 2 : 1.5))
	pageStack.globalToolBar.maximumHeight: Kirigami.Units.gridUnit * 2

	property alias oldStatus: prefs.oldStatus
	property alias notificationText: manager.notificationText
	property alias locationServiceEnabled: manager.locationServiceEnabled
	property alias pluggedInDeviceName: manager.pluggedInDeviceName
	property alias showPin: prefs.showPin
	property alias defaultCylinderIndex: settingsWindow.defaultCylinderIndex
	property bool filterToggle: false
	property string filterPattern: ""
	property bool firstChange: true
	property int lastOrientation: undefined
	property int colWidth: undefined

	onNotificationTextChanged: {
		if (notificationText != "") {
			// there's a risk that we have a >5 second gap in update events;
			// still, keep the timeout at 5s to avoid odd unchanging notifications
			showPassiveNotification(notificationText, 5000)
		} else {
			// hiding the notification right away may be a mistake as it hides the last warning / error
			hidePassiveNotification();
		}
	}
	FontMetrics {
		id: fontMetrics
		Component.onCompleted: {
			manager.appendTextToLog("Using the following font: " + fontMetrics.font.family
				    + " at " + subsurfaceTheme.basePointSize + "pt" +
				    " with mobile_scale: " + PrefDisplay.mobile_scale)
		}
	}
	visible: false

	BusyIndicator {
		id: busy
		running: false
		height: 6 * Kirigami.Units.gridUnit
		width: 6 * Kirigami.Units.gridUnit
		anchors.centerIn: parent
	}

	function showBusy() {
		busy.running = true
	}

	function showBusyAndDisconnectModel() { // this is used by QMLManager when operating the filter
		busy.running = true
		diveList.diveListModel = null
	}

	function hideBusy() {
		busy.running = false
	}

	function hideBusyAndConnectModel() { // this is used by QMLManager when done filtering
		busy.running = false
		diveList.diveListModel = diveModel
	}

	function returnTopPage() {
		for (var i=pageStack.depth; i>1; i--) {
			pageStack.pop()
		}
		detailsWindow.endEditMode()
	}

	function scrollToTop() {
		diveList.scrollToTop()
	}

	function showMap() {
		if (globalDrawer.drawerOpen)
			globalDrawer.close()
		var i=pageIndex(mapPage)
		if (i === -1)
			pageStack.push(mapPage)
		else
			pageStack.currentIndex = i
	}

	function showDiveList() {
		if (globalDrawer.drawerOpen)
			globalDrawer.close()
		var i=pageIndex(diveList)
		if (i === -1)
			pageStack.push(diveList)
		else
			pageStack.currentIndex = i
	}

	function pageIndex(pageToFind) {
		for (var i = 0; i < pageStack.contentItem.contentChildren.length; i++) {
			if (pageStack.contentItem.contentChildren[i] === pageToFind)
				return i
		}
		return -1
	}

	function startAddDive() {
		detailsWindow.state = "add"
		detailsWindow.dive_id = manager.addDive();
		detailsWindow.number = manager.getNumber(detailsWindow.dive_id)
		detailsWindow.date = manager.getDate(detailsWindow.dive_id)
		detailsWindow.airtemp = ""
		detailsWindow.watertemp = ""
		detailsWindow.buddyModel = manager.buddyList
		detailsWindow.buddyIndex = -1
		detailsWindow.buddyText = ""
		detailsWindow.depth = ""
		detailsWindow.divemasterModel = manager.divemasterList
		detailsWindow.divemasterIndex = -1
		detailsWindow.divemasterText = ""
		detailsWindow.notes = ""
		detailsWindow.location = ""
		detailsWindow.gps = ""
		detailsWindow.duration = ""
		detailsWindow.suitModel = manager.suitList
		detailsWindow.suitIndex = -1
		detailsWindow.suitText = ""
		detailsWindow.cylinderModel0 = manager.cylinderInit
		detailsWindow.cylinderModel1 = manager.cylinderInit
		detailsWindow.cylinderModel2 = manager.cylinderInit
		detailsWindow.cylinderModel3 = manager.cylinderInit
		detailsWindow.cylinderModel4 = manager.cylinderInit
		detailsWindow.cylinderIndex0 = PrefGeneral.default_cylinder == "" ? -1 : detailsWindow.cylinderModel0.indexOf(PrefGeneral.default_cylinder)
		detailsWindow.usedCyl = ["",]
		detailsWindow.weight = ""
		detailsWindow.usedGas = []
		detailsWindow.startpressure = []
		detailsWindow.endpressure = []
		detailsWindow.gpsCheckbox = false
		pageStack.push(detailsWindow)
	}

	globalDrawer: Kirigami.GlobalDrawer {
		id: gDrawer
		height: rootItem.height
		topContent: Image {
			source: "qrc:/qml/icons/dive.jpg"
			Layout.fillWidth: true
			sourceSize.width: parent.width
			fillMode: Image.PreserveAspectFit
			LinearGradient {
				anchors {
					left: parent.left
					right: parent.right
					top: parent.top
				}
				height: textblock.height * 2
				start: Qt.point(0, 0)
				end: Qt.point(0, height)
				gradient: Gradient {
					GradientStop {
						position: 0.0
						color: Qt.rgba(0, 0, 0, 0.8)
					}
					GradientStop {
						position: 1.0
						color: "transparent"
					}
				}
			}
			ColumnLayout {
				id: textblock
				anchors {
					left: parent.left
					top: parent.top
				}
				RowLayout {
					width: Math.min(implicitWidth, parent.width)
					Layout.margins: Kirigami.Units.smallSpacing
					Image {
						source: "qrc:/qml/subsurface-mobile-icon.png"
						fillMode: Image.PreserveAspectCrop
						sourceSize.width: Kirigami.Units.iconSizes.large
						width: Kirigami.Units.iconSizes.large
						Layout.margins: Kirigami.Units.smallSpacing
					}
					Kirigami.Heading {
						Layout.fillWidth: true
						visible: text.length > 0
						level: 1
						color: "white"
						text: "Subsurface"
						wrapMode: Text.NoWrap
						elide: Text.ElideRight
						font.weight: Font.Normal
						Layout.margins: Kirigami.Units.smallSpacing
					}
				}
				RowLayout {
					Layout.margins: Kirigami.Units.smallSpacing
					Kirigami.Heading {
						Layout.fillWidth: true
						visible: text.length > 0
						level: 3
						color: "white"
						text: prefs.cloudUserName
						wrapMode: Text.NoWrap
						elide: Text.ElideRight
						font.weight: Font.Normal
					}
				}
			}
		}

		resetMenuOnTriggered: false

		actions: [
			Kirigami.Action {
				icon {
					name: ":/icons/ic_home.svg"
				}
				text: qsTr("Dive list")
				onTriggered: {
					manager.appendTextToLog("requested dive list with credential status " + prefs.credentialStatus)
					if (prefs.credentialStatus == CloudStatus.CS_UNKNOWN) {
						// the user has asked to change credentials - if the credentials before that
						// were valid, go back to dive list
						if (oldStatus == CloudStatus.CS_VERIFIED) {
							prefs.credentialStatus = oldStatus
						}
					}
					returnTopPage()
					globalDrawer.close()
				}
			},
			Kirigami.Action {
				icon {
					name: ":/icons/map-globe.svg"
				}
				text: mapPage.title
				onTriggered: {
					showMap()
				}
			},
			Kirigami.Action {
				icon {
					name: ":/icons/ic_sync.svg"
				}
				text: qsTr("Dive management")
				Kirigami.Action {
					icon {
						name: ":/go-previous-symbolic"
					}
					text: qsTr("Back")
					onTriggered: gDrawer.scrollViewItem.pop()
				}
				Kirigami.Action {
					icon {
						name: ":/icons/ic_add.svg"
					}
					text: qsTr("Add dive manually")
					enabled: prefs.credentialStatus === CloudStatus.CS_VERIFIED ||
							prefs.credentialStatus === CloudStatus.CS_NOCLOUD
					onTriggered: {
						globalDrawer.close()
						returnTopPage()  // otherwise odd things happen with the page stack
						startAddDive()
					}
				}
				Kirigami.Action {
					// this of course assumes a white background - theming means this needs to change again
					icon {
						name: ":/icons/downloadDC-black.svg"
					}
					text: qsTr("Download from DC")
					enabled: true
					onTriggered: {
						globalDrawer.close()
						downloadFromDc.dcImportModel.clearTable()
						pageStack.push(downloadFromDc)
					}
				}
				Kirigami.Action {
					icon {
						name: ":/icons/ic_add_location.svg"
					}
					text: qsTr("Apply GPS fixes")
					onTriggered: {
						globalDrawer.close()
						showBusy()
						diveList.diveListModel = null
						manager.applyGpsData()
						diveModel.resetInternalData()
						manager.refreshDiveList()
						while (pageStack.depth > 1) {
							pageStack.pop()
						}
						diveList.diveListModel = diveModel
						pageStack.push(diveList)
						hideBusy()
					}
				}
				Kirigami.Action {
					icon {
						name: ":/icons/cloud_sync.svg"
					}
					text: qsTr("Manual sync with cloud")
					enabled: prefs.credentialStatus === CloudStatus.CS_VERIFIED ||
							prefs.credentialStatus === CloudStatus.CS_NOCLOUD
					onTriggered: {
						if (prefs.credentialStatus === CloudStatus.CS_NOCLOUD) {
							returnTopPage()
							oldStatus = prefs.credentialStatus
							manager.startPageText = "Enter valid cloud storage credentials"
							prefs.credentialStatus = CloudStatus.CS_UNKNOWN
							globalDrawer.close()
						} else {
							globalDrawer.close()
							detailsWindow.endEditMode()
							manager.saveChangesCloud(true);
							globalDrawer.close()
						}
					}
				}
				Kirigami.Action {
				icon {
					name: PrefCloudStorage.cloud_auto_sync ?  ":/icons/ic_cloud_off.svg" : ":/icons/ic_cloud_done.svg"
				}
				text: PrefCloudStorage.cloud_auto_sync ? qsTr("Disable auto cloud sync") : qsTr("Enable auto cloud sync")
					visible: prefs.credentialStatus !== CloudStatus.CS_NOCLOUD
					onTriggered: {
						PrefCloudStorage.cloud_auto_sync = !PrefCloudStorage.cloud_auto_sync
						manager.setGitLocalOnly(PrefCloudStorage.cloud_auto_sync)
						if (!PrefCloudStorage.cloud_auto_sync) {
							showPassiveNotification(qsTr("Turning off automatic sync to cloud causes all data to only be \
stored locally. This can be very useful in situations with limited or no network access. Please choose 'Manual sync with cloud' \
if you have network connectivity and want to sync your data to cloud storage."), 10000)
						}
					}
				}
			},
			Kirigami.Action {
				icon {
					name: ":/icons/ic_place.svg"
				}
				text: qsTr("GPS")
				visible: true

				Kirigami.Action {
					icon {
						name: ":/go-previous-symbolic"
					}
					text: qsTr("Back")
					onTriggered: gDrawer.scrollViewItem.pop()
				}
				Kirigami.Action {
					icon {
						name:":/icons/ic_gps_fixed.svg"
					}
					text: qsTr("Show GPS fixes")
					onTriggered: {
						globalDrawer.close()
						returnTopPage()
						manager.populateGpsData();
						pageStack.push(gpsWindow)
					}
				}

				Kirigami.Action {
					icon {
						name: ":/icons/ic_clear.svg"
					}
					text: qsTr("Clear GPS cache")
					onTriggered: {
						globalDrawer.close();
						manager.clearGpsData();
					}
				}

				Kirigami.Action {
					icon {
						name: locationServiceEnabled ?  ":/icons/ic_location_off.svg" : ":/icons/ic_place.svg"
					}
					text: locationServiceEnabled ? qsTr("Disable location service") : qsTr("Run location service")
					onTriggered: {
						globalDrawer.close();
						locationServiceEnabled = !locationServiceEnabled
					}
				}
			},
			Kirigami.Action {
				icon {
					name: ":/icons/ic_info_outline.svg"
				}
				text: qsTr("About")
				onTriggered: {
					globalDrawer.close()
					pageStack.push(aboutWindow)
					detailsWindow.endEditMode()
				}
			},
			Kirigami.Action {
				icon {
					name: ":/icons/ic_settings.svg"
				}
				text: qsTr("Settings")
				onTriggered: {
					globalDrawer.close()
					settingsWindow.defaultCylinderModel = manager.cylinderInit
					PrefGeneral.default_cylinder === "" ? defaultCylinderIndex = "-1" : defaultCylinderIndex = settingsWindow.defaultCylinderModel.indexOf(PrefGeneral.default_cylinder)
					pageStack.push(settingsWindow)
					detailsWindow.endEditMode()
				}
			},
			Kirigami.Action {
				icon {
					name: ":/icons/ic_adb.svg"
				}
				text: qsTr("Developer")
				visible: PrefDisplay.show_developer
				Kirigami.Action {
					icon {
						name: ":/go-previous-symbolic"
					}
					text: qsTr("Back")
					onTriggered: gDrawer.scrollViewItem.pop()
				}
				Kirigami.Action {
					text: qsTr("App log")
					onTriggered: {
						globalDrawer.close()
						pageStack.push(logWindow)
					}
				}

				Kirigami.Action {
					text: qsTr("Theme information")
					onTriggered: {
						globalDrawer.close()
						pageStack.push(themetest)
					}
				}
			},
			Kirigami.Action {
				icon {
					name: ":/icons/ic_help_outline.svg"
				}
				text: qsTr("Help")
				onTriggered: {
					Qt.openUrlExternally("https://subsurface-divelog.org/documentation/subsurface-mobile-v2-user-manual/")
				}
			}
		] // end actions
		Image {
			fillMode: Image.PreserveAspectFit
			source: "qrc:///icons/" + (subsurfaceTheme.currentTheme != "" ? subsurfaceTheme.currentTheme : "Blue") + "_gps.svg"
			visible: locationServiceEnabled
		}
	}

	function blueTheme() {
		Material.theme = Material.Light
		Material.accent = subsurfaceTheme.bluePrimaryColor
		subsurfaceTheme.currentTheme = "Blue"
		subsurfaceTheme.darkerPrimaryColor = subsurfaceTheme.blueDarkerPrimaryColor
		subsurfaceTheme.darkerPrimaryTextColor= subsurfaceTheme.blueDarkerPrimaryTextColor
		subsurfaceTheme.primaryColor = subsurfaceTheme.bluePrimaryColor
		subsurfaceTheme.primaryTextColor = subsurfaceTheme.bluePrimaryTextColor
		subsurfaceTheme.lightPrimaryColor = subsurfaceTheme.blueLightPrimaryColor
		subsurfaceTheme.lightPrimaryTextColor = subsurfaceTheme.blueLightPrimaryTextColor
		subsurfaceTheme.backgroundColor = subsurfaceTheme.blueBackgroundColor
		subsurfaceTheme.textColor = subsurfaceTheme.blueTextColor
		subsurfaceTheme.secondaryTextColor = subsurfaceTheme.blueSecondaryTextColor
		manager.setStatusbarColor(subsurfaceTheme.darkerPrimaryColor)
		subsurfaceTheme.drawerColor = subsurfaceTheme.lightDrawerColor
		subsurfaceTheme.iconStyle = "-dark"
	}

	function pinkTheme() {
		Material.theme = Material.Light
		Material.accent = subsurfaceTheme.pinkPrimaryColor
		subsurfaceTheme.currentTheme = "Pink"
		subsurfaceTheme.darkerPrimaryColor = subsurfaceTheme.pinkDarkerPrimaryColor
		subsurfaceTheme.darkerPrimaryTextColor = subsurfaceTheme.pinkDarkerPrimaryTextColor
		subsurfaceTheme.primaryColor = subsurfaceTheme.pinkPrimaryColor
		subsurfaceTheme.primaryTextColor = subsurfaceTheme.pinkPrimaryTextColor
		subsurfaceTheme.lightPrimaryColor = subsurfaceTheme.pinkLightPrimaryColor
		subsurfaceTheme.lightPrimaryTextColor = subsurfaceTheme.pinkLightPrimaryTextColor
		subsurfaceTheme.backgroundColor = subsurfaceTheme.pinkBackgroundColor
		subsurfaceTheme.textColor = subsurfaceTheme.pinkTextColor
		subsurfaceTheme.secondaryTextColor = subsurfaceTheme.pinkSecondaryTextColor
		manager.setStatusbarColor(subsurfaceTheme.darkerPrimaryColor)
		subsurfaceTheme.drawerColor = subsurfaceTheme.lightDrawerColor
		subsurfaceTheme.iconStyle = ""
	}

	function darkTheme() {
		Material.theme = Material.Dark
		Material.accent = subsurfaceTheme.darkPrimaryColor
		subsurfaceTheme.currentTheme = "Dark"
		subsurfaceTheme.darkerPrimaryColor = subsurfaceTheme.darkDarkerPrimaryColor
		subsurfaceTheme.darkerPrimaryTextColor= subsurfaceTheme.darkDarkerPrimaryTextColor
		subsurfaceTheme.primaryColor = subsurfaceTheme.darkPrimaryColor
		subsurfaceTheme.primaryTextColor = subsurfaceTheme.darkPrimaryTextColor
		subsurfaceTheme.lightPrimaryColor = subsurfaceTheme.darkLightPrimaryColor
		subsurfaceTheme.lightPrimaryTextColor = subsurfaceTheme.darkLightPrimaryTextColor
		subsurfaceTheme.backgroundColor = subsurfaceTheme.darkBackgroundColor
		subsurfaceTheme.textColor = subsurfaceTheme.darkTextColor
		subsurfaceTheme.secondaryTextColor = subsurfaceTheme.darkSecondaryTextColor
		manager.setStatusbarColor(subsurfaceTheme.darkerPrimaryColor)
		subsurfaceTheme.drawerColor = subsurfaceTheme.darkDrawerColor
		subsurfaceTheme.iconStyle = "-dark"
	}

	function setupUnits() {
		// some screens are too narrow for Subsurface-mobile to render well
		// try to hack around that by making sure that we can fit at least 21 gridUnits in a row
		var numColumns = Math.floor(rootItem.width/pageStack.defaultColumnWidth)
		rootItem.colWidth = numColumns > 1 ? Math.floor(rootItem.width / numColumns) : rootItem.width;
		var kirigamiGridUnit = Kirigami.Units.gridUnit
		var widthInGridUnits = Math.floor(rootItem.colWidth / kirigamiGridUnit)
		if (widthInGridUnits < 21) {
			kirigamiGridUnit = Math.floor(rootItem.colWidth / 21)
			widthInGridUnits = Math.floor(rootItem.colWidth / kirigamiGridUnit)
		}
		var factor = 1.0
		manager.appendTextToLog(numColumns + " columns with column width of " + rootItem.colWidth)
		manager.appendTextToLog("width in Grid Units " + widthInGridUnits + " original gridUnit " + Kirigami.Units.gridUnit + " now " + kirigamiGridUnit)
		if (Kirigami.Units.gridUnit !== kirigamiGridUnit) {
			factor = kirigamiGridUnit / Kirigami.Units.gridUnit
			// change our glabal grid unit
			Kirigami.Units.gridUnit = kirigamiGridUnit
		}
		// break binding explicitly. Now we have a basePointSize that we can
		// use to easily scale against
		subsurfaceTheme.basePointSize = subsurfaceTheme.basePointSize * factor;

		// set the initial UI scaling as in the the preferences
		fontMetrics.font.pointSize = subsurfaceTheme.basePointSize * PrefDisplay.mobile_scale;
		manager.appendTextToLog("Done setting up sizes")
	}

	QtObject {
		id: subsurfaceTheme

		// basePointSize is determinded based on the width of the screen (typically at start of the app)
		// and must not be changed if we change font size. This is tricky in QML. In order to break the
		// binding between basePointSize and fontMetrics.font.pointSize we explicitly multipy it by 1.0
		// in the onComplete handler of this object.
		property double basePointSize: fontMetrics.font.pointSize;

		property double regularPointSize: fontMetrics.font.pointSize
		property double titlePointSize: regularPointSize * 1.5
		property double headingPointSize: regularPointSize * 1.2
		property double smallPointSize: regularPointSize * 0.8

		// icon Theme
		property string iconStyle: ""

		// colors currently in use
		property string currentTheme
		property color darkerPrimaryColor
		property color darkerPrimaryTextColor
		property color primaryColor
		property color primaryTextColor
		property color lightPrimaryColor
		property color lightPrimaryTextColor
		property color backgroundColor
		property color textColor
		property color secondaryTextColor
		property color drawerColor

		// colors for the blue theme
		property color blueDarkerPrimaryColor: "#303F9f"
		property color blueDarkerPrimaryTextColor: "#ECECEC"
		property color bluePrimaryColor: "#3F51B5"
		property color bluePrimaryTextColor: "#FFFFFF"
		property color blueLightPrimaryColor: "#C5CAE9"
		property color blueLightPrimaryTextColor: "#212121"
		property color blueBackgroundColor: "#eff0f1"
		property color blueTextColor: blueLightPrimaryTextColor
		property color blueSecondaryTextColor: "#757575"

		// colors for the pink theme
		property color pinkDarkerPrimaryColor: "#C2185B"
		property color pinkDarkerPrimaryTextColor: "#ECECEC"
		property color pinkPrimaryColor: "#FF69B4"
		property color pinkPrimaryTextColor: "#212121"
		property color pinkLightPrimaryColor: "#FFDDF4"
		property color pinkLightPrimaryTextColor: "#212121"
		property color pinkBackgroundColor: "#eff0f1"
		property color pinkTextColor: pinkLightPrimaryTextColor
		property color pinkSecondaryTextColor: "#757575"

		// colors for the dark theme
		property color darkDarkerPrimaryColor: "#303F9f"
		property color darkDarkerPrimaryTextColor: "#ECECEC"
		property color darkPrimaryColor: "#3F51B5"
		property color darkPrimaryTextColor: "#ECECEC"
		property color darkLightPrimaryColor: "#C5CAE9"
		property color darkLightPrimaryTextColor: "#ECECEC"
		property color darkBackgroundColor: "#303030"
		property color darkTextColor: darkPrimaryTextColor
		property color darkSecondaryTextColor: "#757575"

		property color contrastAccentColor: "#FF5722" // used for delete button
		property color lightDrawerColor: "#FFFFFF"
		property color darkDrawerColor: "#424242"
		property int initialWidth: rootItem.width
		property int initialHeight: rootItem.height
		Component.onCompleted: {
			// break the binding
			initialWidth = initialWidth * 1
			manager.appendTextToLog("SubsufaceTheme constructor completed, initial width " + initialWidth)
			if (rootItem.firstChange) // only run the setup if we haven't seen a change, yet
				setupUnits() // but don't count this as a change (after all, it's not)
			else
				manager.appendTextToLog("Already adjusted size, ignoring this")

			// this needs to pick the theme from persistent preference settings
			var theme = PrefDisplay.theme
			if (theme == "Blue")
				blueTheme()
			else if (theme == "Pink")
				pinkTheme()
			else
				darkTheme()
		}
	}

	onWidthChanged: {
		manager.appendTextToLog("Window width changed to " + width + " orientation " + Screen.primaryOrientation)
		if (subsurfaceTheme.initialWidth !== undefined) {
			if (width !== subsurfaceTheme.initialWidth && rootItem.firstChange) {
				rootItem.firstChange = false
				rootItem.lastOrientation = Screen.primaryOrientation
				subsurfaceTheme.initialWidth = width
				subsurfaceTheme.initialHeight = height
				manager.appendTextToLog("first real change, so recalculating units and recording size as " + width + " x " + height)
				setupUnits()
			} else if (rootItem.lastOrientation !== undefined && rootItem.lastOrientation != Screen.primaryOrientation) {
				manager.appendTextToLog("Screen rotated, no action necessary")
				rootItem.lastOrientation = Screen.primaryOrientation
				setupUnits()
			} else {
				manager.appendTextToLog("size change without rotation to " + width + " x " + height)
				if (width > subsurfaceTheme.initialWidth) {
					manager.appendTextToLog("resetting to initial width " + subsurfaceTheme.initialWidth + " and height " + subsurfaceTheme.initialHeight)
					rootItem.width = subsurfaceTheme.initialWidth
					rootItem.height = subsurfaceTheme.initialHeight
				}
			}
		} else {
			manager.appendTextToLog("width changed before initial width initialized, ignoring")
		}
	}

	pageStack.initialPage: DiveList {
		id: diveList
		opacity: 0
		Behavior on opacity {
			NumberAnimation {
				duration: 200
				easing.type: Easing.OutQuad
			}
		}
	}

	property int hackToOpenMap: 0 /* Otherpage */
	/* I really want an enum, but those are painful in QML, so let's use numbers
	 * 0 (Otherpage)   - the last page selected was a non-map page
	 * 1 (MapSelected) - the map page was selected by the user
	 * 2 (MapForced)   - the map page was forced by out hack
	 */

	pageStack.onCurrentItemChanged: {
		// This is called whenever the user navigates using the breadcrumbs in the header

		if (pageStack.currentItem === null) {
			manager.appendTextToLog("there's no current page")
		} else {
			// horrible, insane hack to make picking the mapPage work
			// for some reason I cannot figure out, whenever the mapPage is selected
			// we immediately switch back to the page before it - so force-prevent
			// that undersired behavior
			if (pageStack.currentItem.objectName === mapPage.objectName) {
				// remember that we actively picked the mapPage
				if (hackToOpenMap !== 2 /* MapForced */ ) {
					manager.appendTextToLog("pageStack switched to map")
					hackToOpenMap = 1 /* MapSelected */
				} else {
					manager.appendTextToLog("pageStack forced back to map")
				}
			} else if (pageStack.currentItem.objectName !== mapPage.objectName &&
					pageStack.lastItem.objectName === mapPage.objectName &&
					hackToOpenMap === 1 /* MapSelected */) {
				// if we just picked the mapPage and are suddenly back on a different page
				// force things back to the mapPage
				manager.appendTextToLog("pageStack wrong page, switching back to map")
				pageStack.currentIndex = pageStack.contentItem.contentChildren.length - 1
				hackToOpenMap = 2 /* MapForced */
			} else {
				// if we picked a different page reset the mapPage hack
				manager.appendTextToLog("pageStack switched to " + pageStack.currentItem.objectName)
				hackToOpenMap = 0 /* Otherpage */
			}

			// disable the left swipe to go back when on the map page
			pageStack.interactive = pageStack.currentItem.objectName !== mapPage.objectName

			// is there a better way to reload the map markers instead of doing that
			// every time the map page is shown - e.g. link to the dive list model somehow?
			if (pageStack.currentItem.objectName === mapPage.objectName)
				mapPage.reloadMap()

			// In case we land on any page, not being the DiveDetails (which can be
			// in multiple states, such as add, edit or view), just end the edit/add mode
			if (pageStack.currentItem.objectName !== "DiveDetails" &&
					(detailsWindow.state === 'edit' || detailsWindow.state === 'add')) {
				detailsWindow.endEditMode()
			}
		}
	}

	QMLPrefs {
		id: prefs
	}

	QMLManager {
		id: manager
	}

	Settings {
		id: settingsWindow
		visible: false
	}

	CopySettings {
		id: settingsCopyWindow
		visible: false
	}

	About {
		id: aboutWindow
		visible: false
	}

	DiveDetails {
		id: detailsWindow
		visible: false
	}

	Log {
		id: logWindow
		visible: false
	}

	GpsList {
		id: gpsWindow
		visible: false
	}

	DownloadFromDiveComputer {
		id: downloadFromDc
		visible: false
	}

	MapPage {
		id: mapPage
		visible: false
	}

	ThemeTest {
		id: themetest
		visible: false
	}

	onPluggedInDeviceNameChanged: {
		if (detailsWindow.state === 'edit' || detailsWindow.state === 'add') {
			/* we're in the middle of editing / adding a dive */
			manager.appendTextToLog("Download page requested by Android Intent, but adding/editing dive; no action taken")
		} else {
			manager.appendTextToLog("Show download page for device " + pluggedInDeviceName)
			/* if we recognized the device, we'll pass in a triple of ComboBox indeces as "vendor;product;connection" */
			var vendorProductConnection = pluggedInDeviceName.split(';')
			if (vendorProductConnection.length === 3)
				diveList.showDownloadPage(vendorProductConnection[0], vendorProductConnection[1], vendorProductConnection[2])
			else
				diveList.showDownloadPage()
			manager.appendTextToLog("done showing download page")
		}
	}

	Component.onCompleted: {
		// try to see if we can detect certain device vendors through these properties
		if (Screen.manufacturer + " " + Screen.model + " " + Screen.name !== "  ")
			manager.appendTextToLog("Running on " + Screen.manufacturer + " " + Screen.model + " " + Screen.name)
		rootItem.visible = true
		diveList.opacity = 1
		rootItem.opacity = 1
		manager.appendTextToLog("setting the defaultColumnWidth to " + Kirigami.Units.gridUnit * 21)
		pageStack.defaultColumnWidth = Kirigami.Units.gridUnit * 21
		manager.appInitialized()
	}
	/* TODO: Verify where opacity went to.
	Behavior on opacity {
		NumberAnimation {
			duration: 200
			easing.type: Easing.OutQuad
		}
	}
	*/
}