Mobile: get dive details directly from the model

By getting a DiveObjectHelper and then dereferencing that we ended up
creating hundres and hundreds of these objects, only to immediately
destroy them after using a tiny part of the data.

Instead make those data available directly from the model, without
having to create a DiveObjectHelper forst.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

mobile-widgets/qml/DiveDetails.qml

@@ -52,7 +52,7 @@ Kirigami.Page {
 	property alias cylinderModel3: detailsEdit.cylinderModel3
 	property alias cylinderModel4: detailsEdit.cylinderModel4
 
-	title: currentItem && currentItem.modelData ? currentItem.modelData.dive.location : qsTr("Dive details")
+	title: currentItem && currentItem.modelData ? currentItem.modelData.location : qsTr("Dive details")
 	state: "view"
 	leftPadding: 0
 	topPadding: Kirigami.Units.gridUnit / 2
@@ -68,7 +68,7 @@ Kirigami.Page {
 				target: diveDetailsPage;
 				actions {
 					right: deleteAction
-					left: currentItem ? (currentItem.modelData && currentItem.modelData.dive.gps !== "" ? mapAction : null) : null
+					left: currentItem ? (currentItem.modelData && currentItem.modelData.gps !== "" ? mapAction : null) : null
 				}
 			}
 		},
@@ -153,7 +153,7 @@ Kirigami.Page {
 			name: ":/icons/trash-empty.svg"
 		}
 		onTriggered: {
-			var deletedId = currentItem.modelData.dive.id
+			var deletedId = currentItem.modelData.id
 			var deletedIndex = diveDetailsListView.currentIndex
 			manager.deleteDive(deletedId)
 			pageStack.pop()
@@ -181,7 +181,7 @@ Kirigami.Page {
 		}
 		onTriggered: {
 			showMap()
-			mapPage.centerOnDiveSite(currentItem.modelData.dive.dive_site)
+			mapPage.centerOnDiveSite(currentItem.modelData.diveSite)
 		}
 	}
 
@@ -218,11 +218,11 @@ Kirigami.Page {
 		// why do we do this? What consumes this?
 		manager.selectedDiveTimestamp = currentItem.modelData.dive.timestamp
 		// make sure the core data structures reflect that this dive is selected
-		manager.selectDive(currentItem.modelData.dive.id)
+		manager.selectDive(currentItem.modelData.id)
 		// update the map to show the highlighted flag and center on it
 		if (rootItem.pageIndex(mapPage) !== -1) {
 			mapPage.reloadMap()
-			mapPage.centerOnDiveSite(currentItem.modelData.dive.dive_site)
+			mapPage.centerOnDiveSite(currentItem.modelData.diveSite)
 		}
 	}
 
@@ -251,34 +251,35 @@ Kirigami.Page {
 		// set things up for editing - so make sure that the detailsEdit has
 		// all the right data (using the property aliases set up above)
 		var dive = currentItem.modelData.dive
-		dive_id = dive.id
-		number = dive.number
-		date = dive.date + " " + dive.time
-		location = dive.location
-		locationIndex = manager.locationList.indexOf(dive.location)
-		gps = dive.gps
+		var modelData = currentItem.modelData
+		dive_id = modelData.id
+		number = modelData.number
+		date = modelData.dateTime
+		location = modelData.location
+		locationIndex = manager.locationList.indexOf(modelData.location)
+		gps = modelData.gps
 		gpsCheckbox = false
-		duration = dive.duration
-		depth = dive.depth
-		airtemp = dive.airTemp
-		watertemp = dive.waterTemp
-		suitIndex = manager.suitList.indexOf(dive.suit)
-		if (dive.buddy.indexOf(",") > 0) {
-			buddyIndex = manager.buddyList.indexOf(dive.buddy.split(",", 1).toString())
+		duration = modelData.duration
+		depth = modelData.depth
+		airtemp = modelData.airTemp
+		watertemp = modelData.waterTemp
+		suitIndex = manager.suitList.indexOf(modelData.suit)
+		if (modelData.buddy.indexOf(",") > 0) {
+			buddyIndex = manager.buddyList.indexOf(modelData.buddy.split(",", 1).toString())
 		} else {
-			buddyIndex = manager.buddyList.indexOf(dive.buddy)
+			buddyIndex = manager.buddyList.indexOf(modelData.buddy)
 		}
-		buddyText = dive.buddy;
-		if (dive.divemaster.indexOf(",") > 0) {
-			divemasterIndex = manager.divemasterList.indexOf(dive.divemaster.split(",", 1).toString())
+		buddyText = modelData.buddy;
+		if (modelData.diveMaster.indexOf(",") > 0) {
+			divemasterIndex = manager.divemasterList.indexOf(modelData.diveMaster.split(",", 1).toString())
 		} else {
-			divemasterIndex = manager.divemasterList.indexOf(dive.divemaster)
+			divemasterIndex = manager.divemasterList.indexOf(modelData.diveMaster)
 		}
-		divemasterText = dive.divemaster
-		notes = dive.notes
-		if (dive.singleWeight) {
+		divemasterText = modelData.diveMaster
+		notes = modelData.notes
+		if (modelData.singleWeight) {
 			// we have only one weight, go ahead, have fun and edit it
-			weight = dive.sumWeight
+			weight = modelData.sumWeight
 		} else {
 			// careful when translating, this text is "magic" in DiveDetailsEdit.qml
 			weight = "cannot edit multiple weight systems"
@@ -292,8 +293,8 @@ Kirigami.Page {
 		cylinderIndex2 = dive.cylinderList.indexOf(usedCyl[2])
 		cylinderIndex3 = dive.cylinderList.indexOf(usedCyl[3])
 		cylinderIndex4 = dive.cylinderList.indexOf(usedCyl[4])
-		rating = dive.rating
-		visibility = dive.visibility
+		rating = modelData.rating
+		visibility = modelData.viz
 
 		diveDetailsPage.state = "edit"
 	}

mobile-widgets/qml/DiveDetailsView.qml

@@ -36,7 +36,7 @@ Item {
 		anchors.left: parent.left
 		Controls.Label {
 			id: locationText
-			text: dive.location
+			text: location
 			font.weight: Font.Bold
 			font.pointSize: subsurfaceTheme.titlePointSize
 			wrapMode: Text.WrapAtWordBoundaryOrAnywhere
@@ -49,21 +49,21 @@ Item {
 			}
 			MouseArea {
 				anchors.fill: parent
-				enabled: dive.gps_decimal !== ""
+				enabled: gpsDecimal !== ""
 				onClicked: {
 					showMap()
-					mapPage.centerOnDiveSite(dive.dive_site)
+					mapPage.centerOnDiveSite(dive_site)
 				}
 			}
 		}
 		SsrfButton {
 			id: gpsButton
 			anchors.right: parent.right
-			enabled: dive.gps !== ""
+			enabled: gps !== ""
 			text: qsTr("Map it")
 			onClicked: {
 				showMap()
-				mapPage.centerOnDiveSite(dive.dive_site)
+				mapPage.centerOnDiveSite(dive_site)
 			}
 		}
 		Row {
@@ -77,14 +77,14 @@ Item {
 			}
 
 			Controls.Label {
-				text: dive.date + " " + dive.time
+				text: dateTime
 				width: Math.max(locationText.width * 0.45, paintedWidth)
 				font.pointSize: subsurfaceTheme.smallPointSize
 				color: subsurfaceTheme.textColor
 			}
 			// let's try to show the depth / duration very compact
 			Controls.Label {
-				text: dive.depth + ' / ' + dive.duration
+				text: depthDuration
 				width: Math.max(Kirigami.Units.gridUnit * 3, paintedWidth)
 				font.pointSize: subsurfaceTheme.smallPointSize
 				color: subsurfaceTheme.textColor
@@ -92,7 +92,7 @@ Item {
 		}
 		Controls.Label {
 			id: numberText
-			text: "#" + dive.number
+			text: "#" + number
 			font.pointSize: subsurfaceTheme.smallPointSize
 			color: subsurfaceTheme.textColor
 			anchors {
@@ -117,35 +117,35 @@ Item {
 				width: height
 				height: subsurfaceTheme.regularPointSize
 				anchors.verticalCenter: ratingText.verticalCenter
-				source: (dive.rating >= 1) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
+				source: (rating >= 1) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
 				color: subsurfaceTheme.textColor
 			}
 			Kirigami.Icon {
 				width: height
 				height: subsurfaceTheme.regularPointSize
 				anchors.verticalCenter: ratingText.verticalCenter
-				source: (dive.rating >= 2) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
+				source: (rating >= 2) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
 				color: subsurfaceTheme.textColor
 			}
 			Kirigami.Icon {
 				width: height
 				height: subsurfaceTheme.regularPointSize
 				anchors.verticalCenter: ratingText.verticalCenter
-				source: (dive.rating >= 3) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
+				source: (rating >= 3) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
 				color: subsurfaceTheme.textColor
 			}
 			Kirigami.Icon {
 				width: height
 				height: subsurfaceTheme.regularPointSize
 				anchors.verticalCenter: ratingText.verticalCenter
-				source: (dive.rating >= 4) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
+				source: (rating >= 4) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
 				color: subsurfaceTheme.textColor
 			}
 			Kirigami.Icon {
 				width: height
 				height: subsurfaceTheme.regularPointSize
 				anchors.verticalCenter: ratingText.verticalCenter
-				source: (dive.rating === 5) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
+				source: (rating === 5) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
 				color: subsurfaceTheme.textColor
 			}
 		}
@@ -165,35 +165,35 @@ Item {
 				width: height
 				height: subsurfaceTheme.regularPointSize
 				anchors.verticalCenter: visibilityText.verticalCenter
-				source: (dive.visibility >= 1) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
+				source: (viz >= 1) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
 				color: subsurfaceTheme.textColor
 			}
 			Kirigami.Icon {
 				width: height
 				height: subsurfaceTheme.regularPointSize
 				anchors.verticalCenter: visibilityText.verticalCenter
-				source: (dive.visibility >= 2) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
+				source: (viz >= 2) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
 				color: subsurfaceTheme.textColor
 			}
 			Kirigami.Icon {
 				width: height
 				height: subsurfaceTheme.regularPointSize
 				anchors.verticalCenter: visibilityText.verticalCenter
-				source: (dive.visibility >= 3) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
+				source: (viz >= 3) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
 				color: subsurfaceTheme.textColor
 			}
 			Kirigami.Icon {
 				width: height
 				height: subsurfaceTheme.regularPointSize
 				anchors.verticalCenter: visibilityText.verticalCenter
-				source: (dive.visibility >= 4) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
+				source: (viz >= 4) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
 				color: subsurfaceTheme.textColor
 			}
 			Kirigami.Icon {
 				width: height
 				height: subsurfaceTheme.regularPointSize
 				anchors.verticalCenter: visibilityText.verticalCenter
-				source: (dive.visibility === 5) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
+				source: (viz === 5) ? ":/icons/ic_star.svg" : ":/icons/ic_star_border.svg"
 				color: subsurfaceTheme.textColor
 			}
 		}
@@ -214,7 +214,7 @@ Item {
 
 		QMLProfile {
 			id: qmlProfile
-			visible: !dive.noDive
+			visible: !noDive
 			Layout.fillWidth: true
 			Layout.preferredHeight: Layout.minimumHeight
 			Layout.minimumHeight: width * 0.75
@@ -230,7 +230,7 @@ Item {
 		}
 		Controls.Label {
 			id: noProfile
-			visible: dive.noDive
+			visible: noDive
 			Layout.fillWidth: true
 			Layout.columnSpan: 3
 			Layout.margins: Kirigami.Units.gridUnit
@@ -266,21 +266,21 @@ Item {
 		//------------
 		Controls.Label {
 			id: txtSuit
-			text: dive.suit
+			text: suit
 			wrapMode: TextEdit.WrapAtWordBoundaryOrAnywhere
 			Layout.maximumWidth: detailsView.col1Width
 			color: subsurfaceTheme.textColor
 		}
 		Controls.Label {
 			id: txtAirTemp
-			text: dive.airTemp
+			text: airTemp
 			wrapMode: Text.WrapAtWordBoundaryOrAnywhere
 			Layout.maximumWidth: detailsView.col2Width
 			color: subsurfaceTheme.textColor
 		}
 		Controls.Label {
 			id: txtWaterTemp
-			text: dive.waterTemp
+			text: waterTemp
 			wrapMode: Text.WrapAtWordBoundaryOrAnywhere
 			Layout.maximumWidth: detailsView.col3Width
 			color: subsurfaceTheme.textColor
@@ -325,21 +325,21 @@ Item {
 		//------------
 		Controls.Label {
 			id: txtCylinder
-			text: dive.getCylinder.join(', ')
+			text: cylinder
 			wrapMode: Text.WrapAtWordBoundaryOrAnywhere
 			Layout.maximumWidth: detailsView.col1Width
 			color: subsurfaceTheme.textColor
 		}
 		Controls.Label {
 			id: txtWeight
-			text: dive.sumWeight
+			text: sumWeight
 			wrapMode: Text.WrapAtWordBoundaryOrAnywhere
 			Layout.maximumWidth: detailsView.col2Width
 			color: subsurfaceTheme.textColor
 		}
 		Controls.Label {
 			id: txtSAC
-			text: dive.sac
+			text: sac
 			wrapMode: Text.WrapAtWordBoundaryOrAnywhere
 			Layout.maximumWidth: detailsView.col3Width
 			color: subsurfaceTheme.textColor
@@ -377,14 +377,14 @@ Item {
 		//-----------
 		Controls.Label {
 			id: txtDiveMaster
-			text: dive.divemaster
+			text: diveMaster
 			wrapMode: TextEdit.WrapAtWordBoundaryOrAnywhere
 			Layout.maximumWidth: detailsView.col1Width
 			color: subsurfaceTheme.textColor
 		}
 		Controls.Label {
 			id: txtBuddy
-			text: dive.buddy
+			text: buddy
 			wrapMode: Text.WrapAtWordBoundaryOrAnywhere
 			Layout.columnSpan: 2
 			Layout.maximumWidth: detailsView.col2Width + detailsView.col3Width
@@ -411,7 +411,7 @@ Item {
 
 		Controls.Label {
 			id: txtNotes
-			text: dive.notes
+			text: notes
 			focus: true
 			Layout.columnSpan: 3
 			Layout.fillWidth: true

qt-models/divelistmodel.cpp

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "qt-models/divelistmodel.h"
+#include "core/divesite.h"
 #include "core/qthelper.h"
 #include "core/trip.h"
 #include "core/settings/qPrefGeneral.h"
@@ -97,7 +98,7 @@ static dive_trip *tripIdToObject(const QString &s)
 		return nullptr;
 	int id = s.toInt();
 	dive_trip **trip = std::find_if(&trip_table.trips[0], &trip_table.trips[trip_table.nr],
-				        [id] (const dive_trip *t) { return t->id == id; });
+					[id] (const dive_trip *t) { return t->id == id; });
 	if (trip == &trip_table.trips[trip_table.nr]) {
 		fprintf(stderr, "Warning: unknown trip id passed through QML: %d\n", id);
 		return nullptr;
@@ -256,8 +257,29 @@ QVariant DiveListModel::data(const QModelIndex &index, int role) const
 	case IdRole: return d->id;
 	case NumberRole: return d->number;
 	case LocationRole: return get_dive_location(d);
+	case DepthRole: return get_depth_string(d->dc.maxdepth.mm, true, true);
+	case DurationRole: return get_dive_duration_string(d->duration.seconds, gettextFromC::tr("h"), gettextFromC::tr("min"));
 	case DepthDurationRole: return QStringLiteral("%1 / %2").arg(get_depth_string(d->dc.maxdepth.mm, true, true),
 								     get_dive_duration_string(d->duration.seconds, gettextFromC::tr("h"), gettextFromC::tr("min")));
+	case RatingRole: return d->rating;
+	case VizRole: return d->visibility;
+	case SuitRole: return d->suit;
+	case AirTempRole: return get_temperature_string(d->airtemp, true);
+	case WaterTempRole: return get_temperature_string(d->watertemp, true);
+	case SacRole: return formatSac(d);
+	case SumWeightRole: return get_weight_string(weight_t { total_weight(d) }, true);
+	case DiveMasterRole: return d->divemaster ? d->divemaster : QString();
+	case BuddyRole: return d->buddy ? d->buddy : QString();
+	case NotesRole: return formatNotes(d);
+	case GpsRole: return d->dive_site ? printGPSCoords(&d->dive_site->location) : QString();
+	case GpsDecimalRole: return format_gps_decimal(d);
+	case NoDiveRole: return d->duration.seconds == 0 && d->dc.duration.seconds == 0;
+	case DiveSiteRole: return QVariant::fromValue(d->dive_site);
+	case CylinderRole: return formatGetCylinder(d).join(", ");
+	case SingleWeightRole: return d->weightsystems.nr <= 1;
+	case StartPressureRole: return getStartPressure(d);
+	case EndPressureRole: return getEndPressure(d);
+	case FirstGasRole: return getFirstGas(d);
 	}
 	return QVariant();
 }
@@ -273,7 +295,28 @@ QHash<int, QByteArray> DiveListModel::roleNames() const
 	roles[IdRole] = "id";
 	roles[NumberRole] = "number";
 	roles[LocationRole] = "location";
+	roles[DepthRole] = "depth";
+	roles[DurationRole] = "duration";
 	roles[DepthDurationRole] = "depthDuration";
+	roles[RatingRole] = "rating";
+	roles[VizRole] = "viz";
+	roles[SuitRole] = "suit";
+	roles[AirTempRole] = "airTemp";
+	roles[WaterTempRole] = "waterTemp";
+	roles[SacRole] = "sac";
+	roles[SumWeightRole] = "sumWeight";
+	roles[DiveMasterRole] = "diveMaster";
+	roles[BuddyRole] = "buddy";
+	roles[NotesRole]= "notes";
+	roles[GpsRole] = "gps";
+	roles[GpsDecimalRole] = "gpsDecimal";
+	roles[NoDiveRole] = "noDive";
+	roles[DiveSiteRole] = "diveSite";
+	roles[CylinderRole] = "cylinder";
+	roles[SingleWeightRole] = "singleWeight";
+	roles[StartPressureRole] = "startPressure";
+	roles[EndPressureRole] = "endPressure";
+	roles[FirstGasRole] = "firstGas";
 	return roles;
 }
 

qt-models/divelistmodel.h

@@ -29,6 +29,15 @@ private:
 	void updateFilterState();
 };
 
+QString formatSac(const dive *d);
+QString formatNotes(const dive *d);
+QString format_gps_decimal(const dive *d);
+QStringList formatGetCylinder(const dive *d);
+QStringList getStartPressure(const dive *d);
+QStringList getEndPressure(const dive *d);
+QStringList getFirstGas(const dive *d);
+
+
 class DiveListModel : public QAbstractListModel
 {
 	Q_OBJECT
@@ -42,7 +51,28 @@ public:
 		IdRole,
 		NumberRole,
 		LocationRole,
+		DepthRole,
+		DurationRole,
 		DepthDurationRole,
+		RatingRole,
+		VizRole,
+		SuitRole,
+		AirTempRole,
+		WaterTempRole,
+		SacRole,
+		SumWeightRole,
+		DiveMasterRole,
+		BuddyRole,
+		NotesRole,
+		GpsDecimalRole,
+		GpsRole,
+		NoDiveRole,
+		DiveSiteRole,
+		CylinderRole,
+		SingleWeightRole,
+		StartPressureRole,
+		EndPressureRole,
+		FirstGasRole,
 	};
 
 	static DiveListModel *instance();