Hi All, I am a newbie to the desktop/embedded linux graphics and widget toolkit.
The following is a list of questions about how OpenJFX is architected/designed/implemented: * How does openjfx manage the lifecycle of windows/surfaces/graphics-context(EGL/OpenGL) to draw into? What is the (design and implementation)/architecture of the window system abstraction used by OpenJFX? Any links to code snippets inside OpenJFX showing the creation/management of an X11-Window/Wayland-Surface would help. References: * GTK uses GDK(https://docs.gtk.org/gtk4/drawing-model.html) for managing windowing abstraction. * GLFW, a cross platform (window + graphics context + input) management: https://www.glfw.org/ * Microsoft Windows win32 API: https://learn.microsoft.com/en-us/windows/win32/learnwin32/creating-a-window, https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-createwindowexa * How are frames created using drawing operations? What is the abstraction used to express the content of the frame? Any code/design links please. References: * GTK uses GSK(https://docs.gtk.org/gsk4/) for building the scene graph that can be rendered as a frame. * Windows reference: https://learn.microsoft.com/en-us/windows/win32/learnwin32/your-first-direct2d-program * How is event management done in OpenGFX ? Any code/design links please. Reference: * GTK uses an main eventloop https://docs.gtk.org/glib/main-loop.html . * How are widgets drawn ? How are events dispatched to widgets and how do widgets react to events ? How is the application widget UI state stored and what is the corresponding memory management for storing the UI/widget state ? Does the UI state get modeled as a scene graph ? Any code/design links please. Reference: * https://learn.microsoft.com/en-us/windows/win32/learnwin32/retained-mode-versus-immediate-mode Please feel free to reply with code links, design docs, wikis or articles of the web. Thank you, Keerthivasan Raghavan
