> Le 26 oct. 2021 à 11:50, Stéphane LOS <stephane....@slo-ist.fr> a écrit : > > Hello there, > > justGage in one of the libraries used by the Node-RED Dashboard : > https://flows.nodered.org/node/node-red-dashboard > https://toorshia.github.io/justgage/ > > It looks pretty simple and it should not be too difficult to create a Gnoga > plugin but I've looked the other plugins and I miss some guidelines on the > low level mechanisms of Gnoga. > > I won't give up any soon but a little help would be nice. > > I'm looking also on adding charting library. justGage is my first attempt.
Hello Stéphane, That's nice plugin outcome ;-) There isn't any standalone guidelines but when writing Pixi plugin I was inspired by those written by David. When creating the PIXI plugin I went through the following steps: First I wrote the complete specification at once, for instance with sprites: https://sourceforge.net/p/gnoga/code/ci/dev_1.6/tree/components/pixi/src/gnoga-gui-plugin-pixi-sprite.ads The Load_PIXI procedure is used to load the needed stuff for the Javascript part of the plugin. https://sourceforge.net/p/gnoga/code/ci/dev_1.6/tree/components/pixi/src/gnoga-gui-plugin-pixi.ads#l53 The chosen type of your plugin object may be: - Gnoga.Gui.Base.Base_Type - Gnoga.Gui.Element.Element_Type - Gnoga.Gui.View.View_Type It depends on which set of API you want to inherit to write the implementation part of the plugin. I chose Gnoga.Gui.Element.Element_Type: https://sourceforge.net/p/gnoga/code/ci/dev_1.6/tree/components/pixi/src/gnoga-gui-plugin-pixi.ads#l60 but it might be Gnoga.Gui.Base.Base_Type: https://sourceforge.net/p/gnoga/code/ci/dev_1.6/tree/components/pixi/src/gnoga-gui-plugin-pixi.ads#l64 Then comes the creation procedure of the GUI object.https://sourceforge.net/p/gnoga/code/ci/dev_1.6/tree/components/pixi/src/gnoga-gui-plugin-pixi-sprite.ads#l70 All specific API subroutines which follow are split in properties: https://sourceforge.net/p/gnoga/code/ci/dev_1.6/tree/components/pixi/src/gnoga-gui-plugin-pixi-sprite.ads#l70 and methods: https://sourceforge.net/p/gnoga/code/ci/dev_1.6/tree/components/pixi/src/gnoga-gui-plugin-pixi-sprite.ads#l264 Let be inspired by your Javascript API: https://github.com/toorshia/justgage#methods On the implementation side: The Load_PIXI procedure is implemented with the plugin script. https://sourceforge.net/p/gnoga/code/ci/dev_1.6/tree/components/pixi/src/gnoga-gui-plugin-pixi.adb#l46 The Create procedure is somewhat special : - set the object ID with a new one https://sourceforge.net/p/gnoga/code/ci/dev_1.6/tree/components/pixi/src/gnoga-gui-plugin-pixi.adb#l68 - set the connection ID to the window ID (seem not needed with next step) https://sourceforge.net/p/gnoga/code/ci/dev_1.6/tree/components/pixi/src/gnoga-gui-plugin-pixi.adb#l69 - attach the object to message system https://sourceforge.net/p/gnoga/code/ci/dev_1.6/tree/components/pixi/src/gnoga-gui-plugin-pixi.adb#l70 - initialize the object on Javascript side https://sourceforge.net/p/gnoga/code/ci/dev_1.6/tree/components/pixi/src/gnoga-gui-plugin-pixi.adb#l72 - fire the message child added to the parent https://sourceforge.net/p/gnoga/code/ci/dev_1.6/tree/components/pixi/src/gnoga-gui-plugin-pixi.adb#l80 Then implements your API using the ones of Gnoga. If you want to use the message system, ask me. HTH, Pascal. https://blady.pagesperso-orange.fr _______________________________________________ Gnoga-list mailing list Gnoga-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gnoga-list
