I need help not related to littlenavmap, but my own project i am working on. I have to create my own Pages(Flight plan and so on).

[Mohammad-Imran01]

If i use use qml which is a little easier for me to style and design, it puts alot of load on application.
I dont want to use qml can you please tell me if you were in my situation how would you have designed such UI for example Flight plan UI i am showing below.

I have to create 20/25 such pages, but just 4 qml pages put alot of pressure. Note: I used map widget as parent

[albar965]

Keep using the map widget as parent but put all pages into windows on top of it. Then fill these windows with content using the QPainter and C++. This is a lot of work.
You can also try to use Qt widgets like QScrollArea or QTableWidget and change the look and feel using stylesheets until they look like the G1000 pages
Not sure if there are better approaches. Javascript and Chrome engine will also consume a lot of resources.

If the QML puts too much strain on the application you should check your code. The fewest tasks have to be run every frame.

[Mohammad-Imran01]

Thank you. Now i can use QWidgets confidently.

[Mohammad-Imran01]

Hello, I came across Flight gear G1000, which uses exactly same pages as i need but SVG files and dynamically changing values, If you have worked with SVGs for QT GUI, can you please tell me, can i also use SVGs? Will it work fine like Widgets and QML components?

[albar965]

You can use SVG files. All icons in LNM toolbars and on the map are SVG.

See https://doc.qt.io/qt-5/svgrendering.html
But keep in mind that

Qt supports the static features of SVG 1.2 Tiny. ECMA scripts and DOM manipulation are currently not supported.

Alex

[Mohammad-Imran01]

I need your help please,
I am facing compilation error because of flightplanconstants.h(maybe) it randomly comes out of nowhere, note i havent edited any atools files neither i am using flightplans files till now in my classes. But the errors(40, 70 or more than 100) randomly comes and takes alot of time. I have solved it by removing certain headers files, last time i remember i had to remove "//#include "src/route/routecontroller.h",
Do you know this issue? is there any parmanent solution?

/****** Same file (flightplanconstants.h:) hundreds of errors, without changing or including this file. *******/
C:\Users\Imran\Desktop\Aexr\DA42-G1000\atools\src\fs\pln\flightplanconstants.h:63: error: expected identifier before numeric constant
In file included from D:/Apps/Qt/Tools/mingw810_32/i686-w64-mingw32/include/windows.h:71,
from D:\Apps\Qt\5.15.2\mingw81_32\include/QtCore/qt_windows.h:64,
from D:\Apps\Qt\5.15.2\mingw81_32\include/QtGui/qopengl.h:49,
from D:\Apps\Qt\5.15.2\mingw81_32\include/QtQuick/qsggeometry.h:44,
from D:\Apps\Qt\5.15.2\mingw81_32\include/QtQuick/qsgnode.h:43,
from D:\Apps\Qt\5.15.2\mingw81_32\include/QtQuick/qsgrendererinterface.h:43,
from D:\Apps\Qt\5.15.2\mingw81_32\include/QtQuick/qquickwindow.h:44,
from D:\Apps\Qt\5.15.2\mingw81_32\include\QtQuickWidgets/qquickwidget.h:44,
from D:\Apps\Qt\5.15.2\mingw81_32\include\QtQuickWidgets/QQuickWidget:1,
from ..\littlenavmap/custom/info/pagetextbuilder.h:20,
from ..\littlenavmap/custom/pageGroupWidgets/pgwpt.h:4,
from ..\littlenavmap\custom\info\pagedatacontroller.h:7,
from ..\littlenavmap\custom\info\pagedatacontroller.cpp:1:
..\atools\src/fs/pln/flightplanconstants.h: At global scope:
..\atools\src/fs/pln/flightplanconstants.h:63:3: error: expected identifier before numeric constant
ALTERNATE = 1 << 2, / Flight plan entry leads to an alternate airport */
^~~~~~~~~

[Mohammad-Imran01]

I am using the same version, i had downloaded 4/5 months ago, everything works fine just including some files like mapflags gives this error. And i dont know why the error shows like that but there is no missing "*" or anything.

You have never faced this issue?

[albar965]

Never seen this but your pasted error message shows clearly that the comment is broken.

error: expected identifier before numeric constant

This also means that the comment is broken. Revert the changes, update from Github and try again. It's just a * 🙂

[Mohammad-Imran01]

Sorry for bothering but, see it yourself, the Flag is just above Q_DECLARE_FLAGS (without missing astrisk) still it says undefined giving same error like it did few months(and few weeks) back.

`/*****************************************************************************

• Copyright 2015-2023 Alexander Barthel alex@littlenavmap.org
• This program is free software: you can redistribute it and/or modify
• it under the terms of the GNU General Public License as published by
• the Free Software Foundation, either version 3 of the License, or
• (at your option) any later version.
• This program is distributed in the hope that it will be useful,
• but WITHOUT ANY WARRANTY; without even the implied warranty of
• MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
• GNU General Public License for more details.
• You should have received a copy of the GNU General Public License
• along with this program. If not, see http://www.gnu.org/licenses/.
  *****************************************************************************/

#ifndef ATOOLS_FLIGHTPLANCONSTANTS_H
#define ATOOLS_FLIGHTPLANCONSTANTS_H

#include

#include

namespace atools {
namespace fs {
namespace pln {

namespace pattern {

/* Pattern variables for flight plan names */
const QLatin1String PLANTYPE("PLANTYPE"); // IFR or VFR
const QLatin1String DEPARTIDENT("DEPARTIDENT"); // Departure airport ICAO code
const QLatin1String DEPARTNAME("DEPARTNAME"); // Departure airport name
const QLatin1String DESTIDENT("DESTIDENT"); // Destination airport ICAO code
const QLatin1String DESTNAME("DESTNAME"); // Destination airport name
const QLatin1String CRUISEALT("CRUISEALT"); // Cruise altitude

/* Default patterns */
const QString SHORT(DEPARTIDENT + " " + DESTIDENT);
const QString LONG(PLANTYPE + " " + DEPARTNAME + " (" + DEPARTIDENT + ") to " + DESTNAME + " (" + DESTIDENT + ")");
}

const static float FLIGHTPLAN_ALTITUDE_FT_MIN = -2000.f;
const static float FLIGHTPLAN_ALTITUDE_FT_MAX = 100000.f; // GUI altitude limit

namespace entry {

enum WaypointType
{
UNKNOWN,
AIRPORT,
WAYPOINT,
VOR,
NDB,
USER
};

enum Flag
{
NONE = 0,
PROCEDURE = 1 << 1, /* Flight plan entry is any procedure leg /
ALTERNATE = 1 << 2, / Flight plan entry leads to an alternate airport /
TRACK = 1 << 3 / Flight plan entry airway name is a track */
};

Q_DECLARE_FLAGS(Flags, Flag);
Q_DECLARE_OPERATORS_FOR_FLAGS(atools::fs::pln::entry::Flags);
}

/* File format for flight plans as detected by FlightplanIO::load and detectFormat /
enum FileFormat
{
NONE,
FSX_PLN, / FSX or P3D XML PLN flight plan - can load and save /
FS9_PLN, / FS9 ini style PLN flight plan - can load only /
FMS3, / X-Plane version 3 FMS file - can load and save /
FMS11, / X-Plane version 11 FMS file - can load and save /
FLP, / Aerosoft airbus or FlightFactor Boeing - can load and save /
FSC_PLN, / FSC ini style PLN flight plan - can load only /
FLIGHTGEAR, / FlightGear XML format - load and save /
LNM_PLN, / Little Navmap's own flight plan format /
GARMIN_FPL, / Garmin FPL - XML format /
MSFS_PLN, / MSFS PLN /
GARMIN_GFP / Garmin GFP - One line text format prefixed with "FPN/RI:..." */
};

enum FlightplanType
{
NO_TYPE,
IFR,
VFR
};

/* Departure parking type. Describes content of FlightPlan::departureParkingName /
enum FlightplanParkingType
{
NO_POS,
AIRPORT,
RUNWAY, / Zero prefixed runway number like "07C" /
PARKING, / Free X-Plane parking name or FSX/P3D/MSFS naming scheme. /
HELIPAD / Number describing the helipad */
};

/* Currently only used for saving FSX/P3D PLN files /
enum RouteType
{
LOW_ALTITUDE,
HIGH_ALTITUDE,
VOR, / Used for radio navaid routing (VOR and NDB) /
DIRECT, / Direct connection without waypoints /
UNKNOWN / Has to be changed later when resolving the ident to database objects */
};

/*

• Common key that are used int flight plan properties that are not supported in PLN.
• Used to transport more optional details to the export methods.
• Keys should never be empty to avoid issues when loading procedures. */

/* Keys that describe procedures /
/ SID, runway and transiton /
const QLatin1String SID("sidappr"); / SID name /
const QLatin1String SID_RW("sidapprrw"); / SID runway /
const QLatin1String SID_TRANS("sidtrans"); / SID transition name /
const QLatin1String SID_TRANS_WP("sidtranswp"); / Alternative to above, the endpoint of the SID transition /
const QLatin1String SID_TYPE("sidtype"); / Optional type of SID, CUSTOMDEPART for selected runway /
const QLatin1String SID_TYPE_CUSTOM("CUSTOMDEPART"); / SIDTYPE for user defined departure */

/* STAR, runway and transiton /
const QLatin1String STAR("star"); / STAR name /
const QLatin1String STAR_RW("starrw"); / STAR runway /
const QLatin1String STAR_TRANS("startrans"); / STAR transition name /
const QLatin1String STAR_TRANS_WP("startranswp"); / Alternative to above, the possible startpoints of a STAR transition
* separated by PROPERTY_LIST_SEP */

/* Approach, runway and more /
const QLatin1String APPROACH("approach"); / Approach name like waypoint /
const QLatin1String APPROACH_ARINC("approacharinc"); / ARINC short name for FMS files /
const QLatin1String APPROACH_TYPE("approachtype"); / Optional type like ILS, RNAV, etc. CUSTOM for selected arrival runway and leg distances. /
const QLatin1String APPROACH_RW("approachrw"); / Runway for approach /
const QLatin1String APPROACH_SUFFIX("approachsuffix"); / Suffix like Z for ILS-Z /
const QLatin1String APPROACH_TYPE_CUSTOM("CUSTOM"); / User defined departure in APPROACHTYPE */

/* Approach transiton /
const QLatin1String TRANSITION("transition"); / Transition name /
const QLatin1String TRANSITION_TYPE("transitiontype"); / Type: Full, etc. */

/* Name of airway which leads to IAF of a STAR or an approach (-transition) */
const QLatin1String PROCAIRWAY("procairway");

/* Only for APPROACHTYPE = CUSTOM /
const QLatin1String APPROACH_CUSTOM_DISTANCE("approachcustomdistance"); / Length or final leg in NM /
const QLatin1String APPROACH_CUSTOM_ALTITUDE("approachcustomaltitude"); / Entry altitude at final leg in ft /
const QLatin1String APPROACH_CUSTOM_OFFSET("approachcustomoffset"); / Offset angle for approach */

/* Only for SIDTYPE = CUSTOMDEPART /
const QLatin1String DEPARTURE_CUSTOM_DISTANCE("departurecustomdistance"); / Length or final leg in NM */

/* Separator character for transition waypoint lists */
const QLatin1Char PROPERTY_LIST_SEP('#');

/* Copies all related properties and deletes the ones in "to" that do not exist in "from". */
void copySidProcedureProperties(QHash<QString, QString>& to, const QHash<QString, QString>& from);
void copyArrivalProcedureProperties(QHash<QString, QString>& to, const QHash<QString, QString>& from);
void copyStarProcedureProperties(QHash<QString, QString>& to, const QHash<QString, QString>& from);

/* Aircraft performance */
const QLatin1String AIRCRAFT_PERF_NAME("aircraftperfname");
const QLatin1String AIRCRAFT_PERF_TYPE("aircraftperftype");
const QLatin1String AIRCRAFT_PERF_FILE("aircraftperffile");

/* Source database navigation data */
const QLatin1String NAVDATA("navdata");
const QLatin1String NAVDATA_CYCLE("navdatacycle");

/* Source database simulator */
const QLatin1String SIMDATA("simdata");
const QLatin1String SIMDATA_CYCLE("simdatacycle");

/* Set if any of the airports to use DEP/DES instead of ADES/ADEP for loading in X-Plane FMS.

• Read by FlightplanIO::saveFmsInternal() */
  const QLatin1String AIRPORT_DEPARTURE_NO_AIRPORT("departnoapt");
  const QLatin1String AIRPORT_DESTINATION_NO_AIRPORT("destnoapt");

/* Invalid/not set heading for parking position */
const float INVALID_HEADING = std::numeric_limits::max();

/* Invalid position altitude for parking and departure */
const float INVALID_ALTITUDE = std::numeric_limits::max();

} // namespace pln
} // namespace fs
} // namespace atools

#endif // ATOOLS_FLIGHTPLANCONSTANTS_H
`

[albar965]

Again: The comment is broken. See my code above.

Current release branch is correct: https://github.com/albar965/atools/blob/release/4.0/src/fs/pln/flightplanconstants.h

Either check out the latest or fix it. 🤷‍♂️

[Mohammad-Imran01]

I had absolutely no idea, it might be colliiding with any enums that i created. I also tried new versions as you said nothing worked then i had to go back to my 7/9days older codes.
Image i shared above has correct asterisk, but text i pasted has not!!!!? Anyway leave it.

[Mohammad-Imran01]

I've been stuck on a problem for weeks, even after asking about it before here. I made my own class called "PageInfoController" similar to "infoController" and connected most signals and slots the same way. At first, everything was fine; I got data when I changed the airport in the searchbase table.

But the problem is still there. When I keep changing airports (around 25 to 30 times) in the searchbase table, the app crashes with "Cn::Process::NotifyOutOfMemory()" or "sometimes image creation too many threads" errors. Even after completely removing infocontroller, the issue remains exactly same. Note that "PageInfoController" sends data to QAbstractListModel classes which update in qml pages using ListView. and I am using 32bit

[albar965]

I'm afraid I cannot help much with this. I'd need to dig into the code and debug into it but this takes an enormous amount of time.

[Mohammad-Imran01]

Okay Thanks alot............👍👍👍👍👍👍

[Mohammad-Imran01]

Hey,
I need to add 'Track mode' in which map moves and rotates plane stays stable. Can you please tell me where should i start or anything that might be helpful.
Thanks.

[albar965]

You can try to use https://doc.qt.io/qt-5/qpainter.html#setTransform to rotate the whole image before painting. But this will rotate the labels too and also destroy the projection.

Anyway, huge effort. Think if you really need this.
I get requests for this in LNM from time to time but refuse it since it is too much effort and would require to rewrite the drawing code.

[Mohammad-Imran01]

Thanks for your response.

[Mohammad-Imran01]

Hey, I need your help with writing my own queries. Like in search window(searchbaseTable), we write 'Ab' it gives rowsof all ident starting with same char. ' I did some additon in waypointquery.cpp.

static const QString whereLikeIdentRegion("ident LIKE :ident"); waypointByLikeIdentQuery = new SqlQuery(dbNav); waypointByLikeIdentQuery->prepare("SELECT * FROM " + table + " WHERE " + whereLikeIdent + " LIMIT 1");

Then using it
void FlightInformation::searchDirectTo(const QString &directToInput) { if (waypointQuery != nullptr && root) { QList<MapWaypoint> wp; waypointQuery->getWaypointByLikeIdent(wp, directToInput + "%"); const int wpLen = wp.length(); if (wpLen > 0) { const MapWaypoint mapWp = wp.first(); // Safer to use first() with check for list emptiness root->setProperty("varDTAddressAirport", mapWp.region); qWarning() << Q_FUNC_INFO << "Waypoint address: " << mapWp.region; } else { qWarning() << Q_FUNC_INFO << "No waypoints found matching the input."; } } else { qWarning() << Q_FUNC_INFO << "Waypoint query or root unavailable."; } }

For any input, output: " qWarning() << Q_FUNC_INFO << "No waypoints found matching the input.";"

It gives no result, can you please tell me how should i create a class to run all my queries like mentioned above. I am very confused with sqlModel, searchBaseTable, Airport query, Sqlhandler classes.

[albar965]

Hard to say without the full code of getWaypointByLikeIdent(). The query and the code look ok to me.