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    Pegasus theme development general

    Scheduled Pinned Locked Moved Ideas and Development
    pegasusqmltheme makingtheme help
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    • fluffypillowF
      fluffypillow @PlayingKarrde
      last edited by

      @PlayingKarrde ah so that's why SQL would be useful for you! Unfortunately there's no built-in way for such reverse-lookup yet, the games have no information about the collections they contain them at the moment. As a workaround, you could do the lookup manually, by going through all the collections in eg. a for loop and check its games member whether it contains the particular game (something like <theCollection>.games.contains(<theGame>)). It requires some programming, and probably won't be too fast... I'll see how much increase would be in the memory usage by adding a list of collections for each game.

      PlayingKarrdeP 1 Reply Last reply Reply Quote 0
      • PlayingKarrdeP
        PlayingKarrde @fluffypillow
        last edited by PlayingKarrde

        @fluffypillow Ah. Hmm yeah I feel like it would be important. Another (and probably better?) example would be if you're doing a search and it returns all games, having information for what system that game is seems important (especially if you have the same game on various systems).

        I won't do the for loop for now as I don't want to sacrifice speed. For the time being I'll just do my filtering based on the current collection as that will get me a large part of the way to accomplish what I'm currently trying.

        Also do you happen to know how to return only a certain number of results? I want to do a recently played list but only want to return 3 entries. Can't seem to figure it out.

        fluffypillowF 1 Reply Last reply Reply Quote 0
        • fluffypillowF
          fluffypillow @PlayingKarrde
          last edited by

          @PlayingKarrde yeah I can see the use cases, I was just worrying about the increase in memory usage. Such overhead shouldn't cause problems, but better safe than sorry.

          Also do you happen to know how to return only a certain number of results?

          IndexFilter might fit here, with maximumIndex: 2 (which would result a list with game[0], game[1], game[2] as elements).

          PlayingKarrdeP 1 Reply Last reply Reply Quote 1
          • PlayingKarrdeP
            PlayingKarrde @fluffypillow
            last edited by

            @fluffypillow Yeah that's what I was originally using but it was just returning the first three games in general. Upon further reflection though I think that suggests my filters aren't working correctly.

            1 Reply Last reply Reply Quote 0
            • AndersHPA
              AndersHP @tronkyfran
              last edited by

              @tronkyfran that's so neat!
              It would be so cool to see cartridges getting put into their respective machines upon gamestart, but maybe that's just me dreaming! :-)

              My "Bubble Bobble" Themed Bartop Arcade
              My Gameboy

              1 Reply Last reply Reply Quote 0
              • S
                spartan
                last edited by

                @fluffypillow I'm trying to build Android version, but after installing QT Creator and everything else, I get the following error in QT Creator:

                Android/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-g++: not found
                
                

                Using Android NDK 19.2.534500
                SDK 26.1.1
                QT 4.9.0
                Java SDK 8

                fluffypillowF 1 Reply Last reply Reply Quote 0
                • fluffypillowF
                  fluffypillow @spartan
                  last edited by

                  @spartan yes, Google removed GCC from the NDK not too long ago. To build using the latest NDK, you'll need at least Qt 5.12, while for older versions, you should use NDK r10e.

                  1 Reply Last reply Reply Quote 0
                  • W
                    wallmachine
                    last edited by

                    @fluffypillow a while back you mentioned that you were going to update theme documentation because of some overhaul did the documentation ever get updated?

                    fluffypillowF 1 Reply Last reply Reply Quote 0
                    • fluffypillowF
                      fluffypillow @wallmachine
                      last edited by

                      @wallmachine not yet, but I do have some plans and outlines for their contents. The current ones ended up a bit massive, so this time I'll likely split things into smaller chapters, which should come sooner (well, once I actually start writing the guide) and easier to follow. I also plan to some add QML tutorials too.

                      1 Reply Last reply Reply Quote 0
                      • W
                        wallmachine
                        last edited by

                        2019-04-23T13:38:09 [i] Theme set to 'Simple theme' (`D:/Pegasus/themes/tutorial-simple/`)
                        2019-04-23T13:38:09 [i] Program settings saved
                        2019-04-23T13:38:09 [w] file:///D:/Pegasus/themes/tutorial-simple/theme.qml:29: TypeError: Cannot read property 'shortname' of undefined
                        2019-04-23T13:38:09 [w] file:///D:/Pegasus/themes/tutorial-simple/theme.qml:44: TypeError: Cannot read property 'index' of undefined
                        2019-04-23T13:38:09 [w] file:///D:/Pegasus/themes/tutorial-simple/theme.qml:42: TypeError: Cannot read property 'model' of undefined
                        2019-04-23T13:38:09 [w] file:///D:/Pegasus/themes/tutorial-simple/theme.qml:40: TypeError: Cannot read property 'gameList' of undefined
                        2019-04-23T13:38:09 [w] file:///D:/Pegasus/themes/tutorial-simple/theme.qml:102: TypeError: Cannot read property 'assets' of undefined
                        2019-04-23T13:38:09 [w] file:///D:/Pegasus/themes/tutorial-simple/theme.qml:110: TypeError: Cannot read property 'title' of undefined
                        2019-04-23T13:38:09 [w] file:///D:/Pegasus/themes/tutorial-simple/theme.qml:134: TypeError: Cannot read property 'developer' of undefined
                        2019-04-23T13:38:09 [w] file:///D:/Pegasus/themes/tutorial-simple/theme.qml:145: TypeError: Cannot read property 'year' of undefined
                        2019-04-23T13:38:09 [w] file:///D:/Pegasus/themes/tutorial-simple/theme.qml:141: TypeError: Cannot read property 'year' of undefined
                        2019-04-23T13:38:09 [w] file:///D:/Pegasus/themes/tutorial-simple/theme.qml:152: TypeError: Cannot read property 'summary' of undefined
                        
                        fluffypillowF 1 Reply Last reply Reply Quote 0
                        • fluffypillowF
                          fluffypillow @wallmachine
                          last edited by

                          @wallmachine I assume that's from here right? Yes, the code in that article was not yet updated. Until then, you could take a look in the sources of these two themes, along with the reference.

                          W 1 Reply Last reply Reply Quote 1
                          • W
                            wallmachine @fluffypillow
                            last edited by

                            @fluffypillow I'll see what I can work out thanks.

                            1 Reply Last reply Reply Quote 0
                            • W
                              wallmachine
                              last edited by

                              does pegasus have an A-Z search?

                              fluffypillowF 1 Reply Last reply Reply Quote 0
                              • fluffypillowF
                                fluffypillow @wallmachine
                                last edited by

                                @wallmachine Pegasus provides only the data, any kind of sorting and filtering then can be done in themes.

                                1 Reply Last reply Reply Quote 1
                                • lilbudL
                                  lilbud
                                  last edited by

                                  @fluffypillow Got the carousel to line up
                                  alt text

                                  Now for the movement

                                  On the switch itself. The carousel starts on the first item on the left, the selector then moves to the left while moving the carousel to the right (I'm uploading a video I took to better explain this) So when the frontend loads, the carousel is selecting the first item rather than the center item.

                                  Video to better explain the movement: https://photos.app.goo.gl/SofY6eK7N64c12uT9

                                  Creator of the Radiocade: https://retropie.org.uk/forum/topic/6077/radiocade

                                  Backlog: http://backloggery.com/lilbud

                                  1 Reply Last reply Reply Quote 0
                                  • fluffypillowF
                                    fluffypillow
                                    last edited by

                                    @lilbud I see, I see, so you'd like to create a layout like this and keep the selection in the middle area: https://snag.gy/CGAw4Q.jpg

                                    Looking at the video though, it seems the Switch UI is not actually a carousel. See there are two kinds of this linear layout in Pegasus:

                                    • ListView is easier to use but doesn't loop like a carousel (ie. you jump to the beginning/end on the last/first element). This is what the Switch UI uses in the video.
                                    • PathView is somewhat more complex but loops like the ES systems view. That's what the Carousel object in the theme uses under the hood.

                                    So in case you'd like to make it exactly like the Switch you could take a look on ListViews too.

                                    For both of them, you can use preferredHighlightBegin and -End to set the range where you want to keep the selection. The actual value depends on the type of the layout:

                                    • For ListView, they are in pixels, and mean the left and right edge of the area (like on the image above)
                                    • For PathViews, they are in percentage of the whole path, and mean the center point of the leftmost and rightmost item (maybe this animation helps)
                                    1 Reply Last reply Reply Quote 0
                                    • S
                                      SinisterSpatula
                                      last edited by

                                      Just starting to look into this front end and I have to say it's very very nice. I'm currently looking at getting it working on pi zero and small screen 320x240 Retroflag GPi. I'm just doing small edits to the Game OS theme to try and get it to display on such a tiny screen, and I'm sure I'll run into a lot of small issues because this wasn't the design case for either the front end or the theme. (I love both!). Already I have it looking good and running good, but wondered about the video playing code, it looks like it might be using software video decoding, as I see the pi zero hits 100% cpu whenever video is playing. Is there any way currently to take advantage of hardware video acceleration for playing videos, in a similar way that OMXplayer does?

                                      fluffypillowF 1 Reply Last reply Reply Quote 1
                                      • fluffypillowF
                                        fluffypillow @SinisterSpatula
                                        last edited by fluffypillow

                                        @SinisterSpatula installing gstreamer1.0-omx should enable the hardware acceleration, but if I remember correctly it also increased the temperature of the Pi and didn't work well for certain video formats. Support might have got better since then though.

                                        Also if you have some photos or videos, I'd be happy to see Pegasus running on the Retroflag :)

                                        S 1 Reply Last reply Reply Quote 1
                                        • S
                                          SinisterSpatula @fluffypillow
                                          last edited by SinisterSpatula

                                          @fluffypillow Awesome, I'll look into that. Does it just start using it automatically, or do I need to change the video playing code to use it somehow? I'm still very much a newbie and learning. I have yet to change the game detail/preview screen but plan to. So far, I think this is looking and running great, and I have much more work to do on it. Here's a video of where I'm at with it currently:

                                          AndersHPA 1 Reply Last reply Reply Quote 3
                                          • S
                                            SinisterSpatula
                                            last edited by

                                            The fork I'm making edit's to (nothing special just commenting stuff out, and changing numbers, etc) is here: https://github.com/SinisterSpatula/gameOS/

                                            1 Reply Last reply Reply Quote 0
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