gui_toolkit 0.62.0

Added

• devtools.start_local, devtools.Local_Client: the protocol with no socket, for a program or a test that drives itself; Toolkit.state says how many pictures are being encoded.
• ui.set_clock: a state's time goes by a clock its owner moves: every delay and wake of the interface follows it, wake_in_ms and wake_due included. Build_Params.time_ms stays for one build.
• testkit/session: an @(test) procedure makes an application with no window of the system on the offscreen renderer, sends input through platform.inject_event, runs frames, reads widgets and real pixels, with barriers on a state (wait_until, wait_idle, wait_box) and a clock of its own (advance); attach drives an application that makes its own frames.

Changed

• tools/changelog is an Odin program, tested by tests/changelog, in place of tools/changelog.ps1 and tools/changelog_test.ps1; -Migrate (for an "## Unreleased" this repository does not have) is gone.
• The tests are Odin: odin run tools/run_tests runs every package on Windows and Linux (on Windows on a desktop of its own, and nothing takes the focus of whoever is at the machine), in place of tools/test_windowless.ps1, tools/test_backends.ps1 and the test part of tools/linux_ci.sh; ten packages that no CI ran now do (window, cursors, tray, dialogs, clock, size_move, i18n, planes, video, textures). tests/e2e/run.mjs is tests/examples/whatsnew_test.odin, in the test's process. Guide: docs/testing.md.
• tests/examples: examples/fidget and examples/todo are tested in the test's process with no window and no input of the machine (tools/keyboard_test.ps1, tools/fidget_test.ps1, tools/ui_test.ps1 are gone, so is fidget's --state_title); the examples have open and close, and a settings folder of their own for a test. Esc in fidget's command palette closes it, as its foot says, instead of only leaving its field.
• Offscreen windows have a machine of their own: platform.virtual_screen_set gives the screen monitor_size and display_info answer for them (no more {0, 0}), platform.set_offscreen_active their activation, and their clipboard is the process's store on Windows as on Linux: a headless program no longer reads or writes the clipboard of the person at the machine.

Fixed

• The caret of line_edit and text_edit wakes the loop at its flips only: the wake came at every half phase (265 ms), which drew each picture of the caret twice.
• The plain text clipboard of an offscreen window on Linux: get_clipboard gave nothing and set_clipboard did nothing, while clipboard_set kept to the process's store: a headless program could not copy and paste its own text.
• One clock for the interface: a scroll bar's reveal (scrollbar_reveal) and the merging of typing into one undo step in a line edit read the system's clock whatever Build_Params.time_ms said; a replay or a test with its own clock got other results.