subsurface/map-widget/qml/MapWidget.qml
Lubomir I. Ivanov 1bc91bfb67 mapwidget.qml: make pan and zoom-in have the same duration
There was a problem with the current different duration
for pan and zoom. Ideally the pan should before the zoom:
Map zooms out -> pan to new center starts -> zoom in

The problem with this is that if the map pans out too much it
loses it's center and the above scheme would not work.

To solve the problem, make the duration of pan and zoom
the same this is not idea, but prevents the case where
the map would not zoom-in at the correct center.

Also remove the easing function.

Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
2017-11-27 22:59:22 +01:00

360 lines
11 KiB
QML

// SPDX-License-Identifier: GPL-2.0
import QtQuick 2.6
import QtLocation 5.3
import QtPositioning 5.3
import org.subsurfacedivelog.mobile 1.0
Item {
id: rootItem
property int nSelectedDives: 0
MapWidgetHelper {
id: mapHelper
map: map
editMode: false
onSelectedDivesChanged: nSelectedDives = list.length
onEditModeChanged: editMessage.isVisible = editMode === true ? 1 : 0
onCoordinatesChanged: {}
Component.onCompleted: {
map.plugin = Qt.createQmlObject(pluginObject, rootItem)
map.mapType = { "STREET": map.supportedMapTypes[0], "SATELLITE": map.supportedMapTypes[1] }
map.activeMapType = map.mapType.SATELLITE
}
}
Map {
id: map
anchors.fill: parent
zoomLevel: defaultZoomIn
property var mapType
readonly property var defaultCenter: QtPositioning.coordinate(0, 0)
readonly property real defaultZoomIn: 12.0
readonly property real defaultZoomOut: 1.0
readonly property real textVisibleZoom: 11.0
readonly property real zoomStep: 2.0
property var newCenter: defaultCenter
property real newZoom: 1.0
property real newZoomOut: 1.0
property var clickCoord: QtPositioning.coordinate(0, 0)
property bool isReady: false
Component.onCompleted: isReady = true
onZoomLevelChanged: {
if (isReady)
mapHelper.calculateSmallCircleRadius(map.center)
}
MapItemView {
id: mapItemView
model: mapHelper.model
delegate: MapQuickItem {
id: mapItem
anchorPoint.x: 0
anchorPoint.y: mapItemImage.height
coordinate: model.coordinate
z: mapHelper.model.selectedUuid === model.uuid ? mapHelper.model.count - 1 : 0
sourceItem: Image {
id: mapItemImage
source: "qrc:///mapwidget-marker" + (mapHelper.model.selectedUuid === model.uuid ? "-selected" : (mapHelper.editMode ? "-gray" : ""))
SequentialAnimation {
id: mapItemImageAnimation
PropertyAnimation { target: mapItemImage; property: "scale"; from: 1.0; to: 0.7; duration: 120 }
PropertyAnimation { target: mapItemImage; property: "scale"; from: 0.7; to: 1.0; duration: 80 }
}
MouseArea {
drag.target: (mapHelper.editMode && mapHelper.model.selectedUuid === model.uuid) ? mapItem : undefined
anchors.fill: parent
onClicked: {
if (!mapHelper.editMode)
mapHelper.model.setSelectedUuid(model.uuid, true)
}
onDoubleClicked: map.doubleClickHandler(mapItem.coordinate)
onReleased: {
if (mapHelper.editMode && mapHelper.model.selectedUuid === model.uuid) {
mapHelper.updateCurrentDiveSiteCoordinatesFromMap(mapHelper.model.selectedUuid, mapItem.coordinate)
}
}
}
Item {
// Text with a duplicate for shadow. DropShadow as layer effect is kind of slow here.
y: mapItemImage.y + mapItemImage.height
visible: map.zoomLevel >= map.textVisibleZoom
Text {
id: mapItemTextShadow
x: mapItemText.x + 2; y: mapItemText.y + 2
text: mapItemText.text
font.pointSize: mapItemText.font.pointSize
color: "black"
}
Text {
id: mapItemText
text: model.name
font.pointSize: 11.0
color: mapHelper.model.selectedUuid === model.uuid ? "white" : "lightgrey"
}
}
}
}
}
SequentialAnimation {
id: mapAnimationZoomIn
NumberAnimation {
target: map; property: "zoomLevel"; to: map.newZoomOut; duration: Math.abs(map.newZoomOut - map.zoomLevel) * 200
}
ParallelAnimation {
CoordinateAnimation { target: map; property: "center"; to: map.newCenter; duration: 2000; easing.type: Easing.OutCubic }
NumberAnimation {
target: map; property: "zoomLevel"; to: map.newZoom; duration: 2000
}
}
}
ParallelAnimation {
id: mapAnimationZoomOut
NumberAnimation { target: map; property: "zoomLevel"; from: map.zoomLevel; to: map.newZoom; duration: 3000 }
SequentialAnimation {
PauseAnimation { duration: 2000 }
CoordinateAnimation { target: map; property: "center"; to: map.newCenter; duration: 2000 }
}
}
ParallelAnimation {
id: mapAnimationClick
CoordinateAnimation { target: map; property: "center"; to: map.newCenter; duration: 500 }
NumberAnimation { target: map; property: "zoomLevel"; to: map.newZoom; duration: 500 }
}
MouseArea {
anchors.fill: parent
onPressed: { map.stopZoomAnimations(); mouse.accepted = false }
onWheel: { map.stopZoomAnimations(); wheel.accepted = false }
onDoubleClicked: map.doubleClickHandler(map.toCoordinate(Qt.point(mouseX, mouseY)))
}
function doubleClickHandler(coord) {
newCenter = coord
newZoom = zoomLevel + zoomStep
if (newZoom > maximumZoomLevel)
newZoom = maximumZoomLevel
mapAnimationClick.restart()
}
function animateMapZoomOut() {
newCenter = defaultCenter
newZoom = defaultZoomOut
mapAnimationZoomIn.stop()
mapAnimationZoomOut.restart()
}
function pointIsVisible(pt) {
return !isNaN(pt.x)
}
function stopZoomAnimations() {
mapAnimationZoomIn.stop()
mapAnimationZoomOut.stop()
}
function centerOnCoordinate(coord) {
stopZoomAnimations()
if (coord.latitude === 0.0 && coord.longitude === 0.0) {
// Do nothing
} else {
var newZoomOutFound = false
var zoomStored = zoomLevel
newZoomOut = zoomLevel
newCenter = coord
while (zoomLevel > minimumZoomLevel) {
var pt = fromCoordinate(coord)
if (pointIsVisible(pt)) {
newZoomOut = zoomLevel
newZoomOutFound = true
break
}
zoomLevel--
}
if (!newZoomOutFound)
newZoomOut = defaultZoomOut
zoomLevel = zoomStored
newZoom = zoomStored
mapAnimationZoomIn.restart()
mapAnimationZoomOut.stop()
}
}
function centerOnRectangle(topLeft, bottomRight, centerRect) {
stopZoomAnimations()
if (newCenter.latitude === 0.0 && newCenter.longitude === 0.0) {
// Do nothing
} else {
var centerStored = QtPositioning.coordinate(center.latitude, center.longitude)
var zoomStored = zoomLevel
var newZoomOutFound = false
newCenter = centerRect
// calculate zoom out
newZoomOut = zoomLevel
while (zoomLevel > minimumZoomLevel) {
var ptCenter = fromCoordinate(centerStored)
var ptCenterRect = fromCoordinate(centerRect)
if (pointIsVisible(ptCenter) && pointIsVisible(ptCenterRect)) {
newZoomOut = zoomLevel
newZoomOutFound = true
break
}
zoomLevel--
}
if (!newZoomOutFound)
newZoomOut = defaultZoomOut
// calculate zoom in
center = newCenter
zoomLevel = maximumZoomLevel
var diagonalRect = topLeft.distanceTo(bottomRight)
while (zoomLevel > minimumZoomLevel) {
var c0 = toCoordinate(Qt.point(0.0, 0.0))
var c1 = toCoordinate(Qt.point(width, height))
if (c0.distanceTo(c1) > diagonalRect) {
newZoom = zoomLevel - 2.0
break
}
zoomLevel--
}
if (newZoom > defaultZoomIn)
newZoom = defaultZoomIn
zoomLevel = zoomStored
center = centerStored
mapAnimationZoomIn.restart()
mapAnimationZoomOut.stop()
}
}
function deselectMapLocation() {
stopZoomAnimations()
}
}
Rectangle {
id: editMessage
radius: padding
color: "#b08000"
border.color: "white"
x: (map.width - width) * 0.5; y: padding
width: editMessageText.width + padding * 2.0
height: editMessageText.height + padding * 2.0
visible: false
opacity: 0.0
property int isVisible: -1
property real padding: 10.0
onOpacityChanged: visible = opacity != 0.0
states: [
State { when: editMessage.isVisible === 1; PropertyChanges { target: editMessage; opacity: 1.0 }},
State { when: editMessage.isVisible === 0; PropertyChanges { target: editMessage; opacity: 0.0 }}
]
transitions: Transition { NumberAnimation { properties: "opacity"; easing.type: Easing.InOutQuad }}
Text {
id: editMessageText
y: editMessage.padding; x: editMessage.padding
verticalAlignment: Text.AlignVCenter
color: "white"
font.pointSize: 11.0
text: qsTr("Drag the selected dive location")
}
}
Image {
id: toggleImage
x: 10; y: x
width: 40
height: 40
source: "qrc:///mapwidget-toggle-" + (map.activeMapType === map.mapType.SATELLITE ? "street" : "satellite")
SequentialAnimation {
id: toggleImageAnimation
PropertyAnimation { target: toggleImage; property: "scale"; from: 1.0; to: 0.8; duration: 120 }
PropertyAnimation { target: toggleImage; property: "scale"; from: 0.8; to: 1.0; duration: 80 }
}
MouseArea {
anchors.fill: parent
onClicked: {
map.activeMapType = map.activeMapType === map.mapType.SATELLITE ? map.mapType.STREET : map.mapType.SATELLITE
toggleImageAnimation.restart()
}
}
}
Image {
id: imageZoomIn
x: 10 + (toggleImage.width - imageZoomIn.width) * 0.5; y: toggleImage.y + toggleImage.height + 10
width: 20
height: 20
source: "qrc:///mapwidget-zoom-in"
SequentialAnimation {
id: imageZoomInAnimation
PropertyAnimation { target: imageZoomIn; property: "scale"; from: 1.0; to: 0.8; duration: 120 }
PropertyAnimation { target: imageZoomIn; property: "scale"; from: 0.8; to: 1.0; duration: 80 }
}
MouseArea {
anchors.fill: parent
onClicked: {
map.stopZoomAnimations()
map.newCenter = map.center
map.newZoom = map.zoomLevel + map.zoomStep
if (map.newZoom > map.maximumZoomLevel)
map.newZoom = map.maximumZoomLevel
mapAnimationClick.restart()
imageZoomInAnimation.restart()
}
}
}
Image {
id: imageZoomOut
x: imageZoomIn.x; y: imageZoomIn.y + imageZoomIn.height + 10
source: "qrc:///mapwidget-zoom-out"
width: 20
height: 20
SequentialAnimation {
id: imageZoomOutAnimation
PropertyAnimation { target: imageZoomOut; property: "scale"; from: 1.0; to: 0.8; duration: 120 }
PropertyAnimation { target: imageZoomOut; property: "scale"; from: 0.8; to: 1.0; duration: 80 }
}
MouseArea {
anchors.fill: parent
onClicked: {
map.stopZoomAnimations()
map.newCenter = map.center
map.newZoom = map.zoomLevel - map.zoomStep
mapAnimationClick.restart()
imageZoomOutAnimation.restart()
}
}
}
function openLocationInGoogleMaps(latitude, longitude) {
var loc = latitude + " " + longitude
var url = "https://www.google.com/maps/place/" + loc + "/@" + loc + ",5000m/data=!3m1!1e3!4m2!3m1!1s0x0:0x0"
Qt.openUrlExternally(url)
}
MapWidgetContextMenu {
id: contextMenu
y: 10; x: map.width - y
onActionSelected: {
switch (action) {
case contextMenu.actions.OPEN_LOCATION_IN_GOOGLE_MAPS:
openLocationInGoogleMaps(map.center.latitude, map.center.longitude)
break
case contextMenu.actions.COPY_LOCATION_DECIMAL:
mapHelper.copyToClipboardCoordinates(map.center, false)
break
case contextMenu.actions.COPY_LOCATION_SEXAGESIMAL:
mapHelper.copyToClipboardCoordinates(map.center, true)
break
case contextMenu.actions.SELECT_VISIBLE_LOCATIONS:
mapHelper.selectVisibleLocations()
break
}
}
}
}