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1. Echo Chamber Scripting Reference
   1. Enums
      1. eEchoChamberDock
      2. eEchoChamberCollapse
      3. eEchoChamberPanelSizeMode
      4. eEchoChamberPanelFlow
      5. eEchoChamberInputCheck
      6. eEchoChamberInputBindKind
   2. Constructors
   3. EchoChamberInputBinding()
   4. EchoChamberInputBindingKey(_key, _check, _ctrl, _alt, _shift)
   5. EchoChamberInputBindingFunc(_fn)
   6. EchoChamberInputBindingBlock()
   7. EchoChamberInputContext(_id)
      1. SetParent(_parent_id): Set the parent context id for inheritance.
      2. GetBinding(_action_id): Get the binding for an action id.
      3. BindAction(_action_id, _binding): Bind an action to a binding.
      4. BindKey(_action_id, _key, _check, _ctrl, _alt, _shift): Bind an action to a keyboard key.
      5. BindFunc(_action_id, _fn): Bind an action to a function.
      6. BindBlock(_action_id): Bind an action to a blocker (prevents inheritance).
      7. ClearAction(_action_id): Clear a local action binding so the parent can take over.
   8. EchoChamberRoot(_theme)
      1. ApplyTheme(_theme): Apply a new theme and reapply defaults across windows and panels.
      2. BeginFrame(): Snapshot mouse and wheel for this frame.
      3. GetDefaultInputContextId(): Return the default input context id.
      4. BindCoreInputAction(_action_id, _binding): Bind a core Echo Chamber action in the default context.
      5. GetInputContext(_id): Get an input context by id.
      6. CreateInputContext(_id, _parent_id): Create or return an input context by id.
      7. RemoveInputContext(_id): Remove an input context by id.
      8. InputPressed(_action_id, _window): Check whether an action is pressed in the active input context.
      9. InputDown(_action_id, _window): Check whether an action is held in the active input context.
      10. InputReleased(_action_id, _window): Check whether an action is released in the active input context.
      11. AddPanel(_panel): Add a top-level panel to the root.
      12. CreateWindow(_id): Create and register a floating debug window.
      13. RegisterWindow(_window): Register an externally created window instance.
      14. FindWindow(_id): Find a registered window by id.
      15. FindControl(_id): Find a control by id across all windows.
      16. DumpUI(): Dump the current UI tree and focus/overlay state to the debug log.
      17. RemoveWindow(_window_or_id): Remove a registered window and detach its panels/controls.
      18. BringWindowToFront(_window_or_id): Bring a window (or id) to the front of the z-order.
      19. BringWindowToFrontById(_id): Bring a window to the front by id.
      20. SendWindowToBack(_window_or_id): Send a window (or id) to the back of the z-order.
      21. BringWindowsBack(): Bring all windows back into view so their title bars remain accessible.
      22. SetWindowZIndex(_window_or_id, _index): Set a window z-order index (0 = back, last = front).
      23. SetModalWindow(_window_or_id): Set the modal window (blocks input to other windows).
      24. ClearModalWindow(): Clear the current modal window.
      25. GetModalWindow(): Get the current modal window (if any).
      26. SetPersistenceFile(_filename): Set the INI filename used for saving and loading UI layout state.
      27. SetPersistenceSection(_section): Set the INI section prefix used for saving and loading UI layout state.
      28. SaveLayout(): Save window layout, z-order, and panel state to an INI file.
      29. LoadLayout(): Load window layout, z-order, and panel state from an INI file.
      30. SetMouseCapture(_window): Capture the mouse for a window interaction (drag/resize).
      31. ClearMouseCapture(_window): Release mouse capture if owned by the given window.
      32. RunDesktop(): Run the managed desktop: capture input, process the active window, draw all windows, then draw overlays and tooltip.
      33. ConsumeMouse(): Consume mouse input for all remaining controls this frame.
      34. ConsumeWheel(): Consume mouse wheel for all remaining scroll regions.
      35. DrawScrollArea(_scroll_state, _rect, _content_h, _draw_fn): Draw a scrollable clipped region and handle mouse wheel scrolling when hovered.
      36. PushClipRect(_x1, _y1, _x2, _y2): Push a clip rectangle.
      37. PopClipRect(): Pop the most recently pushed clip rectangle.
      38. HitTestRect(_x1, _y1, _x2, _y2): Simple hit test for a rect.
      39. RequestTooltip(_control_id, _text, _anchor_x, _anchor_y): Request a tooltip for a given control id.
      40. SetActiveOverlayOwner(_control_id): Mark a control as owning a modal overlay (e.g. a dropdown).
      41. ClearActiveOverlayOwner(): Clear the active overlay (if any).
      42. RequestCloseOverlay(): Request the currently active overlay (if any) to close.
      43. QueueOverlay(_owner_id, _draw_fn, _rect, _owner_window): Queue an overlay draw callback. Overlays are drawn after all windows.
      44. OpenContextMenu(_items, _x, _y, _owner_window): Open a context menu overlay at a screen position.
      45. CloseContextMenu(): Close the active context menu overlay (if open).
      46. IsContextMenuOpen(): Returns true if the context menu overlay is open.
      47. DrawOverlays(): Draw all queued overlays once per frame.
      48. LayoutPanels(_x1, _y1, _x2, _y2): Dock + collapse layout. Assigns rects to all top-level panels.
      49. DrawTooltip(): Draw simple tooltip for the current tooltip_control_id (if delay elapsed).
      50. ShowToast(_text, _duration_ms): Show a short toast message (non-blocking).
      51. CopyToClipboard(_text, _toast_text, _duration_ms): Copy text to clipboard and show a toast confirmation.
      52. DrawToast(): Draw active toast notifications for this frame.
      53. DrawPanelBackground(_panel): Convenience: draw a basic panel background.
      54. DrawPanelCollapseHandle(_panel): Draw a collapse handle for a panel (if it supports collapsing).
      55. SetTextInputSource(_fn): Set a function that returns the current active text input string. If not set, keyboard_string is used.
      56. SetTextInputSeed(_fn): Set a function that seeds the active text input string when focusing. If not set, keyboard_string is used.
      57. FocusTextInput(_id, _initial_text, _placeholder, _commit_fn, _config): Focus a text input by id and seed its initial content.
      58. BlurTextInput(_id): Blur a focused text input by id.
      59. IsActiveTextInput(_id): Returns true if the given id is the currently focused text input.
      60. GetActiveText(): Return the current active text string while a text input is focused.
      61. GetTextBuffer(): Return the last committed text buffer for the active text input.
      62. FocusControl(_id, _rect): Give keyboard focus to a non-text control by id.
      63. IsControlFocused(_id): Returns true if the given control id currently owns keyboard focus (and no text input is active).
      64. BlurControlFocus(_id): Blur (clear) keyboard focus from a control by id.
      65. RegisterFocusable(_id, _rect): Register a focusable control for Tab navigation.
   9. EchoChamberWindow(_id)
      1. SetTitle(_title): Set the window title text.
      2. SetInputContext(_context_id, _parent_id): Set the input context id used for this window.
      3. SwapInputContext(_context_id, _parent_id): Swap the input context and remove the old one if unused.
      4. SetWindowStyleKey(_key): Set the window style key (for theme.window_styles).
      5. SetHeaderStyleKey(_key): Set the header style key (for theme.header_styles).
      6. SetChromeButtonStyleKey(_key): Set the chrome button style key (for theme.button_styles).
      7. ApplyTheme(_theme): Apply a theme override to this window and its children.
      8. ClearThemeOverride(): Clear the window theme override (reverts to the root theme).
      9. SetPadding(_value): Set the content padding for this window.
      10. SetMargin(_x, [_y]): Set the outer margin for this window in GUI-space.
      11. SetTitlebarHeight(_value): Set the titlebar height for this window.
      12. SetTitlebarAuto(_flag): Set whether the titlebar height is driven by the current theme.
      13. SetResizeGripSize(_value): Set the resize grip size for this window.
      14. SetVisible(_flag): Show or hide this window.
      15. SetShowChromeButtons(_show_close, _show_minimize, _show_pin): Configure which chrome buttons are shown in the window header.
      16. OnClose(_fn): Set a callback that runs when the window is closed via the close button.
      17. OnMove(_fn): Set a callback that runs when the window moves.
      18. OnResize(_fn): Set a callback that runs when the window resizes.
      19. OnShow(_fn): Set a callback that runs when the window becomes visible.
      20. OnHide(_fn): Set a callback that runs when the window is hidden.
      21. OnFocus(_fn): Set a callback that runs when the window gains focus.
      22. OnBlur(_fn): Set a callback that runs when the window loses focus.
      23. OnMinimize(_fn): Set a callback that runs when the window is minimized.
      24. OnRestore(_fn): Set a callback that runs when the window is restored.
      25. Close(): Close the window (sets visible to false) and fires OnClose.
      26. SetPinned(_flag): Set whether the window is pinned (disables dragging and resizing).
      27. TogglePinned(): Toggle pinned state.
      28. SetMinimized(_flag): Set whether the window is minimized (collapses content; only the title bar remains).
      29. ToggleMinimized(): Toggle minimized state.
      30. SetRect(_x1, _y1, _x2, _y2): Set the window rectangle in GUI-space.
      31. SetPosition(_x, _y): Set the window position in GUI-space (size is unchanged).
      32. GetWidth(): Get the current window width (in GUI-space).
      33. GetHeight(): Get the current window height (in GUI-space).
      34. SetMinSize(_w, _h): Set minimum width and height for this window.
      35. SetMaxSize(_w, _h): Set maximum width and height for this window (0 means no max).
      36. FitToContent([_root]): Resize the window once to fit current content.
      37. SetAutoFit(_flag): Enable or disable auto-fit after layout changes.
      38. AddPanel(_panel): Add a top-level panel to this window.
      39. RemovePanel(_panel_or_id): Remove a panel from this window (top-level or nested).
      40. ClearPanels(): Remove all panels from this window.
      41. FindPanel(_id): Find a panel in this window by id (searches nested container panels too).
      42. FindControl(_id): Find a control in this window by id (searches nested panels too).
      43. MoveControlToPanel(_control_or_id, _panel_or_id, [_index]): Move a control to another panel in this window.
      44. ContainsPoint(_x, _y): Return true if a point is inside this window’s current rectangle.
      45. BeginLayoutBatch(): Begin a layout batch (defers FitToContent until EndLayoutBatch).
      46. EndLayoutBatch(): End a layout batch and apply any deferred FitToContent.
      47. LayoutPanels(_root): Layout this window’s panels into the current content rect.
      48. ProcessWindowInteractions(_root): Handle mouse interactions for dragging/resizing and chrome button clicks.
      49. Draw(_root): Draw the window chrome and all owned panels.
   10. EchoChamberPanel(_id, _dock)
       1. AddControl(_control): Add a control to this panel.
       2. InsertControl(_control, _index): Insert a control at a specific index (clamped).
       3. MoveControl(_control_or_id, _index): Reorder a direct control to a specific index (clamped).
       4. MoveControlToPanel(_control_or_id, _target_panel, [_index]): Move a control to another panel.
       5. SetControlOrder(_ids): Reorder direct controls using a list of ids.
       6. RemoveControl(_control_or_id): Remove a control from this panel (direct or nested).
       7. ClearControls(): Remove all direct controls from this panel.
       8. AddChildPanel(_panel): Add a child panel (for container usage).
       9. RemoveChildPanel(_panel_or_id): Remove a child panel from this panel (direct or nested).
       10. ClearChildPanels(): Remove all child panels from this panel.
       11. FindControl(_id): Find a direct or nested control within this panel by id.
       12. SetSizeMode(_mode): Configure how this panel resolves its dock size.
       13. SetSize(_value): Set dock thickness when using fixed sizing.
       14. SetFlowMode(_flow_mode): Set how child controls flow within the panel.
       15. SetScrollable(_flag): Enable or disable vertical scrolling for this panel.
       16. SetScrollState(_state): Assign a scroll state for this panel (used when scrollable).
       17. SetPadding(_value): Set panel content padding.
       18. SetMargin(_x, [_y]): Set panel outer margin in GUI-space.
       19. SetGap(_value): Set panel control gap spacing.
       20. SetRowHeight(_value): Set panel row height for controls.
       21. SetCollapsedSize(_value): Set collapsed dock thickness for this panel.
       22. SetCollapseMode(_mode): Set the panel collapse mode.
       23. SetCollapsed(_value): Set whether this panel is collapsed.
       24. SetPanelStyleKey(_key): Set the panel style key (for theme.panel_styles).
       25. SetMinSize(_value): Set minimum dock thickness when using fit-to-content.
       26. SetMaxSize(_value): Set maximum dock thickness when using fit-to-content.
       27. SetContentDrawer(_fn): Assign a custom content drawer for this panel.
       28. GetThickness(): Get panel thickness based on collapsed state.
       29. ResolveThickness(_root, _avail_width, _avail_height): Resolve actual thickness for layout considering size mode.
       30. Draw(_root): Draw this panel and its contents (controls or child panels).
   11. EchoChamberScrollState(_id)
       1. SetScrollY(_y): Set the scroll offset in pixels.
       2. ScrollBy(_dy): Scroll by a delta in pixels (positive scrolls down).
       3. Reset(): Reset scroll to the top.
   12. EchoChamberControlBase(_id)
       1. GetRoot(): Get the owning root for this control (if attached).
       2. GetWindow(): Get the owning window for this control (if attached).
       3. GetPanel(): Get the owning panel for this control (if attached).
       4. SetPreferredWidth(_width): Set a preferred pixel width for this control when arranged in a row panel.
       5. SetPreferredHeight(_height): Set a preferred pixel height for this control.
       6. SetFillWidth(_flag): Set whether this control fills the available row width.
       7. SetPadding(_x, [_y]): Set inner padding for this control.
       8. SetMargin(_x, [_y]): Set outer margin for this control.
       9. SetLabel(_text): Set the control’s display label (used by controls that render a label).
       10. SetTooltip(_text): Set the control tooltip (shown on hover where supported).
       11. SetControlStyleKey(_style): Set the theme style key for this control (e.g. button/toggle/dropdown styles).
       12. SetVisible(_flag): Show or hide this control.
       13. SetEnabled(_flag): Enable or disable this control (disabled controls should not accept input).
       14. ProcessAndDraw(_root, _panel, _rect): Override: process input and draw using the given rect.
   13. EchoChamberLabel(_id)
       1. SetText(_text): Set the label text.
       2. BindText(_source, [_key_or_fn]): Bind the label text to a struct field or getter function.
       3. SetAlign(_align): Set text alignment (“left”, “center”, “right”).
       4. UseSmallFont(_flag): Use the smaller theme font.
   14. EchoChamberTextBox(_id)
       1. SetText(_text): Set the text content for this box.
       2. BindText(_source, [_key_or_fn]): Bind the text content to a struct field or getter function.
       3. SetAlign(_align): Set text alignment (“left”, “center”, “right”).
       4. UseSmallFont(_flag): Use the smaller theme font.
       5. SetPadding(_x, [_y]): Set inner padding for the text box.
       6. SetFillWidth(_flag): Set whether this box fills the available row width.
   15. EchoChamberButton(_id)
       1. OnClick(_fn): Set a callback to run when the button is activated.
       2. BindLabel(_source, [_key_or_fn]): Bind the button label to a struct field or getter function.
   16. EchoChamberSlider(_id)
       1. SetRange(_min, _max): Set the slider value range.
       2. SetStep(_step): Set snap step size (0 for no snapping).
       3. BindValue(_source, [_key_or_fn]): Bind the slider value to a struct field or getter/setter functions.
       4. OnChange(_fn): Set a callback that runs when the value changes.
   17. EchoChamberToggle(_id)
       1. BindBool(_source, [_key_or_fn]): Bind the toggle value to a struct field or getter/setter functions.
       2. BindValue(_source, [_key_or_fn]): Bind the toggle value (alias of BindBool).
       3. OnChange(_fn): Set a callback that runs when the value changes.
   18. EchoChamberTextInput(_id)
       1. BindText(_struct, _key): Bind the text input to a struct field.
       2. SetPlaceholder(_text): Set placeholder text shown when empty.
       3. OnChange(_fn): Set a callback that runs when text is committed.
       4. SetReadOnly(_flag): Toggle read-only mode.
       5. SetMaxLength(_len): Set the maximum number of characters (0 for unlimited).
       6. SetAllowedChars(_chars): Restrict input to a specific set of characters.
       7. SetNumericOnly(_flag, [_allow_decimal], [_allow_negative]): Restrict input to numeric characters.
       8. SetSelectAllOnFocus(_flag): Select all text when the input gains focus.
       9. SetFilter(_fn): Provide a filter function for inserted text.
       10. SetInvalid(_flag): Toggle invalid styling.
   19. EchoChamberSeparator(_id)
   20. EchoChamberListView(_id)
       1. SetRowHeight(_h): Set row height in pixels.
       2. SetVisibleRows(_rows): Set a visible row count (auto height from row height).
       3. SetAutoHeightFromCount(_max_rows): Auto-size to row count up to a maximum.
       4. SetAutoWidthFromContent(_max_rows): Auto-size width from row content (sample limit).
       5. SetFillWidth(_flag): Toggle fill width for row layouts.
       6. SetPreferredHeight(_h): Set the preferred height for FitToContent.
       7. SetPreferredWidth(_w): Set the preferred width for FitToContent.
       8. SetCountGetter(_fn): Set a function that returns the row count.
       9. SetRowDrawer(_fn): Set a function that draws a row.
       10. SetRowMeasure(_fn): Set a function that returns row text/width for auto width.
       11. SetOnSelect(_fn): Set a callback that runs when selection changes.
       12. SetOnActivate(_fn): Set a callback that runs when a row is activated.
       13. SetOnDoubleClick(_fn): Set a callback for double click on a row.
       14. SetOnRightClick(_fn): Set a callback for right click on a row.
       15. SetAutoScroll(_enabled): Enable or disable auto scroll to bottom.
       16. JumpToBottom(): Jump scroll to the bottom.
       17. IsNearBottom(): Return true if the scroll is near the bottom.
       18. IsAutoFollowPaused(): Return true if auto follow is paused.
       19. GetSelectedIndex(): Get the selected index.
       20. SetSelectedIndex(_index): Set the selected index.
   21. EchoChamberDropdownBase(_id)
       1. GetSelectedIndex(): Get the selected index.
       2. SetSelectedIndex(_idx): Set the selected index.
       3. DrawOverlayRow(_root, _row_index, _row_rect, _hover, _selected): Draw an overlay row (override to customize).
       4. OnOverlayRowClick(_root, _row_index, _rect, _mx, _my): Handle overlay row click (override to customize).
       5. SetOptions(_array): Set the dropdown options array.
       6. SetUnfoldDirection(_dir): Set the overlay unfold direction (“up” or “down”).
       7. SetUseSelectedLabelWhenClosed(_flag): Use the selected label when closed.
       8. SetOverlayMaxHeight(_height): Set the max overlay height.
   22. EchoChamberDropdownSelect(_id)
       1. BindIndex(_struct, _key): Bind the selected index to a struct field.
       2. OnChange(_fn): Set a callback that runs when the selected index changes.
       3. GetSelectedIndex(): Get the selected index.
       4. OnOverlayRowClick(_root, _row_index, _rect, _mx, _my): Handle overlay row click.
   23. EchoChamberDropdownToggleMenu(_id)
       1. SetItems(_items): Set the item list for the menu.
       2. OnAnyChange(_fn): Set a callback that runs when any item changes.
       3. GetSelectedIndex(): Get the selected index.
       4. SetSelectedIndex(_idx): Set the selected index.
       5. DrawOverlayRow(_root, _row_index, _rect, _hover, _is_selected): Draw an overlay row.
       6. OnOverlayRowClick(_root, _row_index, _rect, _mx, _my): Handle overlay row click.
   24. EchoChamberMachinePicker(_id)
       1. SetListBuilder(_fn): Set a function that provides the list of machines based on the current filter text.
       2. OnSelect(_fn): Set a callback that runs when the user selects a machine.
       3. SetUnfoldDirection(_dir): Set the overlay unfold direction (“up” or “down”).
   25. EchoChamberOpenConsole(_ui_root)
2. Echo Chamber Themes
   1. Default theme structure
      1. CORE
      2. BUTTON
      3. COL
      4. DEFAULT
      5. DROPDOWN
      6. FONT
      7. HEADER
      8. LABEL
      9. LIST
      10. SEPARATOR
      11. MIN
      12. PAD
      13. PANEL
      14. POPUP
      15. ROW
      16. SCROLLBAR
      17. TEXTINPUT
      18. TOGGLE
      19. TOOLTIP
      20. UI
      21. WINDOW
   2. Style map conventions
   3. Theme constructors
   4. EchoChamberTheme()
   5. Pre-built Custom Themes
   6. EchoChamberThemeMidnightNeon()
   7. EchoChamberThemeAmberForest()
   8. EchoChamberThemeSakuraPunch()
   9. EchoChamberThemeArcadeWave()
   10. EchoChamberThemeCircuitCandy()
   11. EchoChamberThemeToxicTerminal()
   12. EchoChamberThemeSunsetGlitch()
   13. EchoChamberThemeBubblegumTerminal()
   14. EchoChamberThemeMangoMint()
   15. Functions
   16. EchoChamberThemeTryGetFont(_font_name)
   17. EchoChamberThemeTryGetSprite(_sprite_name)

Echo Chamber Scripting Reference

Echo Chamber is the in-game debug UI builder. It is a set of constructors that output structs (Root, Window, Panel, Controls).

Important: you can use Echo Chamber without Echo, but they are designed to play nicely together.

Enums

eEchoChamberDock

• FILL
• TOP
• BOTTOM
• LEFT
• RIGHT

eEchoChamberCollapse

• NONE
• TO_LEFT
• TO_RIGHT
• TO_TOP
• TO_BOTTOM

eEchoChamberPanelSizeMode

• FIXED
• FIT_CONTENT

eEchoChamberPanelFlow

• ROW
• COLUMN

eEchoChamberInputCheck

• PRESSED
• DOWN
• RELEASED

eEchoChamberInputBindKind

• KEY
• FUNC
• BLOCK

Constructors

EchoChamberInputBinding()

Base binding type for input actions.

Returns: Struct.EchoChamberInputBinding

---

EchoChamberInputBindingKey(_key, _check, _ctrl, _alt, _shift)

Keyboard binding for an input action.

Arguments

• _key Real Keycode (vk_* or ord()).
• _check eEchoChamberInputCheck Optional, defaults to PRESSED.
• _ctrl Bool Optional, require Ctrl held.
• _alt Bool Optional, require Alt held.
• _shift Bool Optional, require Shift held.

Returns: Struct.EchoChamberInputBinding

---

EchoChamberInputBindingFunc(_fn)

Function binding for an input action.

Arguments

• _fn Function Function that returns true when the action should fire (signature: function() -> Bool).

Returns: Struct.EchoChamberInputBinding

---

EchoChamberInputBindingBlock()

Binding that blocks an action from inheriting from its parent context.

Returns: Struct.EchoChamberInputBinding

---

EchoChamberInputContext(_id)

Input context for Echo Chamber actions, supports inheritance.

Arguments

• _id String

Returns: Struct.EchoChamberInputContext

Public methods

• SetParent(_parent_id): Set the parent context id for inheritance.

  • Arguments:
    • _parent_id String Parent context id (use undefined to clear the parent).
  • Returns: Struct.EchoChamberInputContext
  • Additional details:
    • If _parent_id resolves to this context’s own id, the call is ignored.

• GetBinding(_action_id): Get the binding for an action id.

  • Arguments:
    • _action_id String Action id to look up.
  • Returns: Struct.EchoChamberInputBinding,Undefined
  • Additional details:
    • This only returns the local binding (it does not walk parent contexts).

• BindAction(_action_id, _binding): Bind an action to a binding.

  • Arguments:
    • _action_id String Action id to bind.
    • _binding Struct.EchoChamberInputBinding Binding instance (built from EchoChamberInputBinding*).
  • Returns: Struct.EchoChamberInputContext
  • Additional details:
    • If _binding is not an EchoChamberInputBinding, the call is ignored.

• BindKey(_action_id, _key, _check, _ctrl, _alt, _shift): Bind an action to a keyboard key.

  • Arguments:
    • _action_id String Action id to bind.
    • _key Real Keycode (vk_* or ord()).
    • _check eEchoChamberInputCheck Optional check type (pressed/down/released).
    • _ctrl Bool Optional, require Ctrl held.
    • _alt Bool Optional, require Alt held.
    • _shift Bool Optional, require Shift held.
  • Returns: Struct.EchoChamberInputContext
  • Additional details:
    • Creates a key binding and forwards to BindAction.

• BindFunc(_action_id, _fn): Bind an action to a function.

  • Arguments:
    • _action_id String Action id to bind.
    • _fn Function Function that returns true when the action should fire (signature: function() -> Bool).
  • Returns: Struct.EchoChamberInputContext
  • Additional details:
    • The function is polled each frame while this context is active.

• BindBlock(_action_id): Bind an action to a blocker (prevents inheritance).

  • Arguments:
    • _action_id String Action id to bind.
  • Returns: Struct.EchoChamberInputContext
  • Additional details:
    • Blocks inheritance from the parent context for this action id.

• ClearAction(_action_id): Clear a local action binding so the parent can take over.

  • Arguments:
    • _action_id String Action id to clear.
  • Returns: Struct.EchoChamberInputContext
  • Additional details:
    • Clears only the local binding; parent bindings (if any) will be used again.

---

EchoChamberRoot(_theme)

Root container for debug UI panels and controls.

Arguments

• _theme Struct.EchoChamberTheme

Returns: Struct.EchoChamberRoot

If you plan to create and manage your own root, set ECHO_CONSOLE_ENABLED to 0 in scr_echo.gml so Echo does not auto create a second root.

Public methods

• ApplyTheme(_theme): Apply a new theme and reapply defaults across windows and panels.

  • Arguments:
    • _theme Struct.EchoChamberTheme Theme instance to apply.
  • Returns: Struct.EchoChamberRoot
  • Additional details:
    • If _theme is not an EchoChamberTheme, the call is ignored.
    • Reapplies theme defaults to all registered windows and panels.

• BeginFrame(): Snapshot mouse and wheel for this frame.

  • Arguments: None.
  • Returns: N/A
  • Additional details:
    • Resets per-frame state such as mouse/wheel consumption and overlay queue.
    • This is automatically called by RunDesktop(), so you do not need to manually call it unless you have a specific reason to do so.

• GetDefaultInputContextId(): Return the default input context id.

  • Arguments: None.
  • Returns: String

• BindCoreInputAction(_action_id, _binding): Bind a core Echo Chamber action in the default context.

  • Arguments:
    • _action_id String Action id to bind.
    • _binding Struct.EchoChamberInputBinding Binding instance.
  • Returns: Struct.EchoChamberRoot
  • Additional details:
    • If the default context or binding is invalid, the call is ignored.

• GetInputContext(_id): Get an input context by id.

  • Arguments:
    • _id String Context id to look up.
  • Returns: Struct.EchoChamberInputContext,Undefined

• CreateInputContext(_id, _parent_id): Create or return an input context by id.

  • Arguments:
    • _id String Context id to create or fetch.
    • _parent_id String Optional parent context id (defaults to the root default context when created).
  • Returns: Struct.EchoChamberInputContext,Undefined
  • Additional details:
    • If a context already exists, it is returned and the parent is optionally updated.

• RemoveInputContext(_id): Remove an input context by id.

  • Arguments:
    • _id String Context id to remove.
  • Returns: Bool
  • Additional details:
    • Returns false if the context is the default or is currently in use by any window.

• InputPressed(_action_id, _window): Check whether an action is pressed in the active input context.

  • Arguments:
    • _action_id String Action id to check.
    • _window Struct.EchoChamberWindow Optional window whose input context should be used.
  • Returns: Bool
  • Additional details:
    • If _window is omitted, the focused window context is used.

• InputDown(_action_id, _window): Check whether an action is held in the active input context.

  • Arguments:
    • _action_id String Action id to check.
    • _window Struct.EchoChamberWindow Optional window whose input context should be used.
  • Returns: Bool
  • Additional details:
    • If _window is omitted, the focused window context is used.

• InputReleased(_action_id, _window): Check whether an action is released in the active input context.

  • Arguments:
    • _action_id String Action id to check.
    • _window Struct.EchoChamberWindow Optional window whose input context should be used.
  • Returns: Bool
  • Additional details:
    • If _window is omitted, the focused window context is used.

• AddPanel(_panel): Add a top-level panel to the root.

  • Arguments:
    • _panel Struct.EchoChamberPanel Panel instance to attach.
  • Returns: Struct.EchoChamberPanel,Undefined
  • Additional details:
    • Assigns ownership to the root and its child panels/controls.

• CreateWindow(_id): Create and register a floating debug window.

  • Arguments:
    • _id Any Window id.
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • Applies theme defaults and registers the window with this root.

• RegisterWindow(_window): Register an externally created window instance.

  • Arguments:
    • _window Struct.EchoChamberWindow Window instance to register.
  • Returns: Struct.EchoChamberWindow,Undefined
  • Additional details:
    • Applies theme defaults, sets the window owner, and assigns ownership for all panels/controls.

• FindWindow(_id): Find a registered window by id.

  • Arguments:
    • _id Any Window id.
  • Returns: Struct.EchoChamberWindow,Undefined

• FindControl(_id): Find a control by id across all windows.

  • Arguments:
    • _id Any Control id.
  • Returns: Struct.EchoChamberControlBase,Undefined

• DumpUI(): Dump the current UI tree and focus/overlay state to the debug log.

  • Arguments: None.
  • Returns: Struct.EchoChamberRoot
  • Additional details:
    • Uses EchoDebugInfo to output the structure.

• RemoveWindow(_window_or_id): Remove a registered window and detach its panels/controls.

  • Arguments:
    • _window_or_id Struct.EchoChamberWindow,Any Window instance or id.
  • Returns: Bool
  • Additional details:
    • Clears focus, modal, overlays, and mouse capture if they reference the removed window.

• BringWindowToFront(_window_or_id): Bring a window (or id) to the front of the z-order.

  • Arguments:
    • _window_or_id Struct.EchoChamberWindow,Any Window instance or id.
  • Returns: N/A
  • Additional details:
    • Updates keyboard focus to the brought window.

• BringWindowToFrontById(_id): Bring a window to the front by id.

  • Arguments:
    • _id Any Window id.
  • Returns: Struct.EchoChamberWindow,Undefined

• SendWindowToBack(_window_or_id): Send a window (or id) to the back of the z-order.

  • Arguments:
    • _window_or_id Struct.EchoChamberWindow,Any Window instance or id.
  • Returns: Bool
  • Additional details:
    • Modal windows stay on top; sending a modal window to back just re-brings it to front.

• BringWindowsBack(): Bring all windows back into view so their title bars remain accessible.

  • Arguments: None.
  • Returns: Struct.EchoChamberRoot

• SetWindowZIndex(_window_or_id, _index): Set a window z-order index (0 = back, last = front).

  • Arguments:
    • _window_or_id Struct.EchoChamberWindow,Any Window instance or id.
    • _index Real Target z-order index.
  • Returns: Bool
  • Additional details:
    • Modal windows are forced to the front index.

• SetModalWindow(_window_or_id): Set the modal window (blocks input to other windows).

  • Arguments:
    • _window_or_id Struct.EchoChamberWindow,Any Window instance or id, or undefined to clear.
  • Returns: Bool
  • Additional details:
    • Clears overlays, context menus, and focus that are owned by other windows.

• ClearModalWindow(): Clear the current modal window.

  • Arguments: None.
  • Returns: Bool

• GetModalWindow(): Get the current modal window (if any).

  • Arguments: None.
  • Returns: Struct.EchoChamberWindow,Undefined

• SetPersistenceFile(_filename): Set the INI filename used for saving and loading UI layout state.

  • Arguments:
    • _filename String INI filename (relative or absolute path).
  • Returns: Struct.EchoChamberRoot

• SetPersistenceSection(_section): Set the INI section prefix used for saving and loading UI layout state.

  • Arguments:
    • _section String INI section prefix.
  • Returns: Struct.EchoChamberRoot

• SaveLayout(): Save window layout, z-order, and panel state to an INI file.

  • Arguments: None.
  • Returns: Bool
  • Additional details:
    • Returns false if the persistence file name is empty.

• LoadLayout(): Load window layout, z-order, and panel state from an INI file.

  • Arguments: None.
  • Returns: Bool
  • Additional details:
    • Windows and panels must already be created/registered before calling this.
    • Returns false if the file does not exist.

• SetMouseCapture(_window): Capture the mouse for a window interaction (drag/resize).

  • Arguments:
    • _window Struct.EchoChamberWindow Window to own mouse capture.
  • Returns: N/A
  • Additional details:
    • Only used internally for drag/resize; you usually don’t call this directly.

• ClearMouseCapture(_window): Release mouse capture if owned by the given window.

  • Arguments:
    • _window Struct.EchoChamberWindow Window attempting to release capture.
  • Returns: N/A
  • Additional details:
    • Capture is only cleared if _window currently owns it.

• RunDesktop(): Run the managed desktop: capture input, process the active window, draw all windows, then draw overlays and tooltip.

  • Arguments: None.
  • Returns: N/A
  • Additional details:
    • Call this once per Draw GUI frame to run Echo Chamber.

• ConsumeMouse(): Consume mouse input for all remaining controls this frame.

  • Arguments: None.
  • Returns: N/A

• ConsumeWheel(): Consume mouse wheel for all remaining scroll regions.

  • Arguments: None.
  • Returns: N/A

• DrawScrollArea(_scroll_state, _rect, _content_h, _draw_fn): Draw a scrollable clipped region and handle mouse wheel scrolling when hovered.

  • Arguments:
    • _scroll_state Struct.EchoChamberScrollState Scroll state that stores the current scroll offset.
    • _rect Struct {x1,y1,x2,y2} Visible clip rect in GUI space.
    • _content_h Real Total content height in pixels.
    • _draw_fn Function Draw callback (signature: function(_root, _rect, _scroll_y)).
  • Returns: N/A
  • Additional details:
    • The draw callback should offset its content by _scroll_y (positive values scroll down).
    • The scissor clip is already applied to _rect when _draw_fn runs.

• PushClipRect(_x1, _y1, _x2, _y2): Push a clip rectangle.

  • Arguments:
    • _x1 Real Left bound (GUI space).
    • _y1 Real Top bound (GUI space).
    • _x2 Real Right bound (GUI space).
    • _y2 Real Bottom bound (GUI space).
  • Returns: N/A
  • Additional details:
    • Any existing clip is intersected with the new rect.

• PopClipRect(): Pop the most recently pushed clip rectangle.

  • Arguments: None.
  • Returns: N/A

• HitTestRect(_x1, _y1, _x2, _y2): Simple hit test for a rect.

  • Arguments:
    • _x1 Real Left bound (GUI space).
    • _y1 Real Top bound (GUI space).
    • _x2 Real Right bound (GUI space).
    • _y2 Real Bottom bound (GUI space).
  • Returns: Bool
  • Additional details:
    • Respects mouse_consumed and the current clip region.

• RequestTooltip(_control_id, _text, _anchor_x, _anchor_y): Request a tooltip for a given control id.

  • Arguments:
    • _control_id String Control id requesting the tooltip.
    • _text String Tooltip text.
    • _anchor_x Real Tooltip anchor X (GUI space).
    • _anchor_y Real Tooltip anchor Y (GUI space).
  • Returns: N/A
  • Additional details:
    • If a modal overlay is active, only its owner may request a tooltip.

• SetActiveOverlayOwner(_control_id): Mark a control as owning a modal overlay (e.g. a dropdown).

  • Arguments:
    • _control_id String,Undefined Control id to own the overlay (use undefined to clear).
  • Returns: N/A
  • Additional details:
    • Overlay ownership is tied to the current window context.

• ClearActiveOverlayOwner(): Clear the active overlay (if any).

  • Arguments: None.
  • Returns: N/A

• RequestCloseOverlay(): Request the currently active overlay (if any) to close.

  • Arguments: None.
  • Returns: N/A
  • Additional details:
    • Overlay owners should honor this during ProcessAndDraw.

• QueueOverlay(_owner_id, _draw_fn, _rect, _owner_window): Queue an overlay draw callback. Overlays are drawn after all windows.

  • Arguments:
    • _owner_id Any Control id that owns the overlay (used for overlay focus tracking).
    • _draw_fn Function Draw callback (signature: function(_root)).
    • _rect Struct Optional {x1,y1,x2,y2} overlay rect used for clipping and hit testing.
    • _owner_window Struct.EchoChamberWindow Optional owner window used for theme overrides.
  • Returns: N/A

• OpenContextMenu(_items, _x, _y, _owner_window): Open a context menu overlay at a screen position.

  • Arguments:
    • _items Array Array of item structs: { label, on_click, enabled, shortcut } or { is_separator:true }.
    • _x Real Screen X position (GUI space).
    • _y Real Screen Y position (GUI space).
    • _owner_window Struct.EchoChamberWindow Optional owner window for theme overrides.
  • Returns: N/A
  • Additional details:
    • on_click is a callback with signature function().

• CloseContextMenu(): Close the active context menu overlay (if open).

  • Arguments: None.
  • Returns: N/A

• IsContextMenuOpen(): Returns true if the context menu overlay is open.

  • Arguments: None.
  • Returns: Bool

• DrawOverlays(): Draw all queued overlays once per frame.

  • Arguments: None.
  • Returns: N/A
  • Additional details:
    • Overlays are drawn after all windows and are clipped to their queued rects.

• LayoutPanels(_x1, _y1, _x2, _y2): Dock + collapse layout. Assigns rects to all top-level panels.

  • Arguments:
    • _x1 Real Left bound (GUI space).
    • _y1 Real Top bound (GUI space).
    • _x2 Real Right bound (GUI space).
    • _y2 Real Bottom bound (GUI space).
  • Returns: N/A

• DrawTooltip(): Draw simple tooltip for the current tooltip_control_id (if delay elapsed).

  • Arguments: None.
  • Returns: N/A

• ShowToast(_text, _duration_ms): Show a short toast message (non-blocking).

  • Arguments:
    • _text Any Toast text (converted to string).
    • _duration_ms Real Optional duration in milliseconds.
  • Returns: N/A
  • Additional details:
    • Toasts appear in the bottom right of the game window.

• CopyToClipboard(_text, _toast_text, _duration_ms): Copy text to clipboard and show a toast confirmation.

  • Arguments:
    • _text Any Text to copy.
    • _toast_text Any Optional toast text (defaults to a preview of _text).
    • _duration_ms Real Optional toast duration in milliseconds.
  • Returns: N/A

• DrawToast(): Draw active toast notifications for this frame.

  • Arguments: None.
  • Returns: N/A

• DrawPanelBackground(_panel): Convenience: draw a basic panel background.

  • Arguments:
    • _panel Struct.EchoChamberPanel Panel to draw.
  • Returns: N/A

• DrawPanelCollapseHandle(_panel): Draw a collapse handle for a panel (if it supports collapsing).

  • Arguments:
    • _panel Struct.EchoChamberPanel Panel to draw.
  • Returns: N/A

• SetTextInputSource(_fn): Set a function that returns the current active text input string. If not set, keyboard_string is used.

  • Arguments:
    • _fn Function Text source callback (signature: function() -> String).
  • Returns: N/A
  • Additional details:
    • When a source function is set, the active text input is treated as read-only and pulls its value from this function each frame.

• SetTextInputSeed(_fn): Set a function that seeds the active text input string when focusing. If not set, keyboard_string is used.

  • Arguments:
    • _fn Function Seed callback (signature: function(_text)), where _text is the initial seed value.
  • Returns: N/A
  • Additional details:
    • Use this to sync the initial focus value into your own input storage when a text input gains focus.

• FocusTextInput(_id, _initial_text, _placeholder, _commit_fn, _config): Focus a text input by id and seed its initial content.

  • Arguments:
    • _id Any Text input id to focus.
    • _initial_text String Initial text value.
    • _placeholder String Placeholder text shown when empty.
    • _commit_fn Function Optional commit callback (signature: function(_final_text)).
    • _config Struct Optional config struct for read-only, filters, and caret styling.
  • Returns: N/A
  • Additional details:
    • _commit_fn runs on blur after the final string is synced from the text source (if any).

• BlurTextInput(_id): Blur a focused text input by id.

  • Arguments:
    • _id Any Text input id to blur.
  • Returns: String
  • Additional details:
    • Returns "" if the id is not currently focused.
    • Commits the final value (after syncing from the text source) before returning.

• IsActiveTextInput(_id): Returns true if the given id is the currently focused text input.

  • Arguments:
    • _id Any Text input id to check.
  • Returns: Bool

• GetActiveText(): Return the current active text string while a text input is focused.

  • Arguments: None.
  • Returns: String
  • Additional details:
    • If a text source is set, this returns the source value.

• GetTextBuffer(): Return the last committed text buffer for the active text input.

  • Arguments: None.
  • Returns: String

• FocusControl(_id, _rect): Give keyboard focus to a non-text control by id.

  • Arguments:
    • _id Any Control id to focus.
    • _rect Struct {x1,y1,x2,y2} control rect in GUI space.
  • Returns: N/A
  • Additional details:
    • This focus is separate from text input focus.

• IsControlFocused(_id): Returns true if the given control id currently owns keyboard focus (and no text input is active).

  • Arguments:
    • _id Any Control id to check.
  • Returns: Bool
  • Additional details:
    • Returns false when an overlay is active and owned by another control.

• BlurControlFocus(_id): Blur (clear) keyboard focus from a control by id.

  • Arguments:
    • _id Any Optional id to validate before clearing (if provided, it must match the focused id).
  • Returns: Bool

• RegisterFocusable(_id, _rect): Register a focusable control for Tab navigation.

  • Arguments:
    • _id Any Control id.
    • _rect Struct {x1,y1,x2,y2} control rect in GUI space.
  • Returns: N/A

---

EchoChamberWindow(_id)

Floating debug window that owns a collection of docked panels.

Arguments

• _id Any

Returns: Struct.EchoChamberWindow

Public methods

• SetTitle(_title): Set the window title text.

  • Arguments:
    • _title Any Title text (converted to string).
  • Returns: Struct.EchoChamberWindow

• SetInputContext(_context_id, _parent_id): Set the input context id used for this window.

  • Arguments:
    • _context_id String Context id (use undefined to clear).
    • _parent_id String Optional parent context id.
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • When a root is assigned, the context is created if missing.

• SwapInputContext(_context_id, _parent_id): Swap the input context and remove the old one if unused.

  • Arguments:
    • _context_id String New context id.
    • _parent_id String Optional parent context id.
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • Attempts to remove the previous context if it is unused by any window.

• SetWindowStyleKey(_key): Set the window style key (for theme.window_styles).

  • Arguments:
    • _key String Style key.
  • Returns: Struct.EchoChamberWindow

• SetHeaderStyleKey(_key): Set the header style key (for theme.header_styles).

  • Arguments:
    • _key String Style key.
  • Returns: Struct.EchoChamberWindow

• SetChromeButtonStyleKey(_key): Set the chrome button style key (for theme.button_styles).

  • Arguments:
    • _key String Style key.
  • Returns: Struct.EchoChamberWindow

• ApplyTheme(_theme): Apply a theme override to this window and its children.

  • Arguments:
    • _theme Struct.EchoChamberTheme Theme override (use undefined to clear).
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • Overrides only this window and its panels/controls.

• ClearThemeOverride(): Clear the window theme override (reverts to the root theme).

  • Arguments: None.
  • Returns: Struct.EchoChamberWindow

• SetPadding(_value): Set the content padding for this window.

  • Arguments:
    • _value Real Padding in pixels.
  • Returns: Struct.EchoChamberWindow

• SetMargin(_x, [_y]): Set the outer margin for this window in GUI-space.

  • Arguments:
    • _x Real Horizontal margin.
    • _y Real Optional vertical margin (defaults to _x).
  • Returns: Struct.EchoChamberWindow

• SetTitlebarHeight(_value): Set the titlebar height for this window.

  • Arguments:
    • _value Real Titlebar height in pixels.
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • Disables theme-driven titlebar sizing until SetTitlebarAuto(true) is used.

• SetTitlebarAuto(_flag): Set whether the titlebar height is driven by the current theme.

  • Arguments:
    • _flag Bool Enable or disable auto sizing.
  • Returns: Struct.EchoChamberWindow

• SetResizeGripSize(_value): Set the resize grip size for this window.

  • Arguments:
    • _value Real Grip size in pixels.
  • Returns: Struct.EchoChamberWindow

• SetVisible(_flag): Show or hide this window.

  • Arguments:
    • _flag Bool Visible flag.
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • Hiding clears modal/capture/overlay ownership tied to this window.

• SetShowChromeButtons(_show_close, _show_minimize, _show_pin): Configure which chrome buttons are shown in the window header.

  • Arguments:
    • _show_close Bool Show or hide the close button.
    • _show_minimize Bool Show or hide the minimize button.
    • _show_pin Bool Show or hide the pin button.
  • Returns: Struct.EchoChamberWindow

• OnClose(_fn): Set a callback that runs when the window is closed via the close button.

  • Arguments:
    • _fn Function Callback (signature: function()).
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • Also fired when Close() is called.

• OnMove(_fn): Set a callback that runs when the window moves.

  • Arguments:
    • _fn Function Callback (signature: function()).
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • Fired after the window rect changes position.

• OnResize(_fn): Set a callback that runs when the window resizes.

  • Arguments:
    • _fn Function Callback (signature: function()).
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • Fired after the window rect changes size.

• OnShow(_fn): Set a callback that runs when the window becomes visible.

  • Arguments:
    • _fn Function Callback (signature: function()).
  • Returns: Struct.EchoChamberWindow

• OnHide(_fn): Set a callback that runs when the window is hidden.

  • Arguments:
    • _fn Function Callback (signature: function()).
  • Returns: Struct.EchoChamberWindow

• OnFocus(_fn): Set a callback that runs when the window gains focus.

  • Arguments:
    • _fn Function Callback (signature: function()).
  • Returns: Struct.EchoChamberWindow

• OnBlur(_fn): Set a callback that runs when the window loses focus.

  • Arguments:
    • _fn Function Callback (signature: function()).
  • Returns: Struct.EchoChamberWindow

• OnMinimize(_fn): Set a callback that runs when the window is minimized.

  • Arguments:
    • _fn Function Callback (signature: function()).
  • Returns: Struct.EchoChamberWindow

• OnRestore(_fn): Set a callback that runs when the window is restored.

  • Arguments:
    • _fn Function Callback (signature: function()).
  • Returns: Struct.EchoChamberWindow

• Close(): Close the window (sets visible to false) and fires OnClose.

  • Arguments: None.
  • Returns: N/A
  • Additional details:
    • Calls SetVisible(false) first, then runs the close callback if assigned.

• SetPinned(_flag): Set whether the window is pinned (disables dragging and resizing).

  • Arguments:
    • _flag Bool True to pin, false to unpin.
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • Cancels any active drag/resize and clears mouse capture.

• TogglePinned(): Toggle pinned state.

  • Arguments: None.
  • Returns: Struct.EchoChamberWindow

• SetMinimized(_flag): Set whether the window is minimized (collapses content; only the title bar remains).

  • Arguments:
    • _flag Bool True to minimize, false to restore.
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • Restores to the previous height (clamped by min/max).
    • Clears any active overlay owned by this window.
    • Fires OnMinimize or OnRestore as appropriate.

• ToggleMinimized(): Toggle minimized state.

  • Arguments: None.
  • Returns: Struct.EchoChamberWindow

• SetRect(_x1, _y1, _x2, _y2): Set the window rectangle in GUI-space.

  • Arguments:
    • _x1 Real Left edge.
    • _y1 Real Top edge.
    • _x2 Real Right edge.
    • _y2 Real Bottom edge.
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • Size is clamped to min/max.
    • Marks the rect as user-set and clears any pending fit-to-content on add.

• SetPosition(_x, _y): Set the window position in GUI-space (size is unchanged).

  • Arguments:
    • _x Real New left edge.
    • _y Real New top edge.
  • Returns: Struct.EchoChamberWindow

• GetWidth(): Get the current window width (in GUI-space).

  • Arguments: None.
  • Returns: Real

• GetHeight(): Get the current window height (in GUI-space).

  • Arguments: None.
  • Returns: Real

• SetMinSize(_w, _h): Set minimum width and height for this window.

  • Arguments:
    • _w Real Minimum width (clamped to at least 64).
    • _h Real Minimum height (clamped to at least 64).
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • If the current max size is smaller, it is raised to match.

• SetMaxSize(_w, _h): Set maximum width and height for this window (0 means no max).

  • Arguments:
    • _w Real Maximum width (0 disables max width).
    • _h Real Maximum height (0 disables max height).
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • If the max size is smaller than the minimum, it is clamped up to the minimum.

• FitToContent([_root]): Resize the window once to fit current content.

  • Arguments:
    • _root Struct.EchoChamberRoot Optional root to use for measurement (defaults to owner root).
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • If no panels exist yet, the fit is deferred until the next panel is added.
    • The result is clamped to any min/max size settings.

• SetAutoFit(_flag): Enable or disable auto-fit after layout changes.

  • Arguments:
    • _flag Bool True to auto-fit on future layout changes.
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • If a layout batch is active, the fit is deferred until EndLayoutBatch.

• AddPanel(_panel): Add a top-level panel to this window.

  • Arguments:
    • _panel Struct.EchoChamberPanel Panel to add.
  • Returns: Struct.EchoChamberPanel,Undefined
  • Additional details:
    • Assigns ownership pointers on the panel and its children.
    • Triggers fit-to-content or auto-fit depending on window settings.

• RemovePanel(_panel_or_id): Remove a panel from this window (top-level or nested).

  • Arguments:
    • _panel_or_id Struct.EchoChamberPanel,Any Panel struct or panel id.
  • Returns: Bool
  • Additional details:
    • Detaches ownership pointers for the removed panel tree.
    • Triggers auto-fit when enabled.

• ClearPanels(): Remove all panels from this window.

  • Arguments: None.
  • Returns: N/A
  • Additional details:
    • Detaches all panel trees and triggers auto-fit when enabled.

• FindPanel(_id): Find a panel in this window by id (searches nested container panels too).

  • Arguments:
    • _id Any Panel id (converted to string).
  • Returns: Struct.EchoChamberPanel,Undefined

• FindControl(_id): Find a control in this window by id (searches nested panels too).

  • Arguments:
    • _id Any Control id (converted to string).
  • Returns: Struct.EchoChamberControlBase,Undefined

• MoveControlToPanel(_control_or_id, _panel_or_id, [_index]): Move a control to another panel in this window.

  • Arguments:
    • _control_or_id Struct.EchoChamberControlBase,Any Control or control id.
    • _panel_or_id Struct.EchoChamberPanel,Any Target panel or panel id.
    • _index Real Optional target index (clamped).
  • Returns: Bool

• ContainsPoint(_x, _y): Return true if a point is inside this window’s current rectangle.

  • Arguments:
    • _x Real X position in GUI space.
    • _y Real Y position in GUI space.
  • Returns: Bool
  • Additional details:
    • Returns false when the window is not visible.

• BeginLayoutBatch(): Begin a layout batch (defers FitToContent until EndLayoutBatch).

  • Arguments: None.
  • Returns: Struct.EchoChamberWindow

• EndLayoutBatch(): End a layout batch and apply any deferred FitToContent.

  • Arguments: None.
  • Returns: Struct.EchoChamberWindow
  • Additional details:
    • Only triggers when the batch depth returns to zero.

• LayoutPanels(_root): Layout this window’s panels into the current content rect.

  • Arguments:
    • _root Struct.EchoChamberRoot Root for layout metrics.
  • Returns: N/A

• ProcessWindowInteractions(_root): Handle mouse interactions for dragging/resizing and chrome button clicks.

  • Arguments:
    • _root Struct.EchoChamberRoot Root for input state and focus.
  • Returns: N/A
  • Additional details:
    • Does nothing if the window is not visible.

• Draw(_root): Draw the window chrome and all owned panels.

  • Arguments:
    • _root Struct.EchoChamberRoot Root for theme and drawing helpers.
  • Returns: N/A

---

EchoChamberPanel(_id, _dock)

Layout panel docked to an edge or fill.

Arguments

• _id Any
• _dock eEchoChamberDock

Returns: Struct.EchoChamberPanel

Public methods

• AddControl(_control): Add a control to this panel.

  • Arguments:
    • _control Struct.EchoChamberControlBase Control to add.
  • Returns: Struct.EchoChamberControlBase,Undefined
  • Additional details:
    • Assigns ownership pointers to the control.
    • Triggers fit-to-content or auto-fit depending on window settings.

• InsertControl(_control, _index): Insert a control at a specific index (clamped).

  • Arguments:
    • _control Struct.EchoChamberControlBase Control to insert.
    • _index Real Target index (clamped).
  • Returns: Struct.EchoChamberControlBase,Undefined
  • Additional details:
    • If the control already belongs to another panel, it is removed first.

• MoveControl(_control_or_id, _index): Reorder a direct control to a specific index (clamped).

  • Arguments:
    • _control_or_id Struct.EchoChamberControlBase,Any Control or control id.
    • _index Real Target index (clamped).
  • Returns: Bool
  • Additional details:
    • Only reorders direct children of this panel.

• MoveControlToPanel(_control_or_id, _target_panel, [_index]): Move a control to another panel.

  • Arguments:
    • _control_or_id Struct.EchoChamberControlBase,Any Control or control id.
    • _target_panel Struct.EchoChamberPanel Target panel.
    • _index Real Optional target index (clamped).
  • Returns: Bool

• SetControlOrder(_ids): Reorder direct controls using a list of ids.

  • Arguments:
    • _ids Array<Any> Control ids in desired order.
  • Returns: Struct.EchoChamberPanel
  • Additional details:
    • Any ids not listed keep their relative order at the end.

• RemoveControl(_control_or_id): Remove a control from this panel (direct or nested).

  • Arguments:
    • _control_or_id Struct.EchoChamberControlBase,Any Control or control id.
  • Returns: Bool
  • Additional details:
    • If attached to a root, control focus/hover state is cleaned up.

• ClearControls(): Remove all direct controls from this panel.

  • Arguments: None.
  • Returns: Struct.EchoChamberPanel
  • Additional details:
    • Only direct controls are removed; nested panels are untouched.

• AddChildPanel(_panel): Add a child panel (for container usage).

  • Arguments:
    • _panel Struct.EchoChamberPanel Child panel to add.
  • Returns: Struct.EchoChamberPanel,Undefined
  • Additional details:
    • Marks this panel as a container and assigns ownership pointers.

• RemoveChildPanel(_panel_or_id): Remove a child panel from this panel (direct or nested).

  • Arguments:
    • _panel_or_id Struct.EchoChamberPanel,Any Panel or panel id.
  • Returns: Bool

• ClearChildPanels(): Remove all child panels from this panel.

  • Arguments: None.
  • Returns: Struct.EchoChamberPanel
  • Additional details:
    • Clears container state and triggers auto-fit when enabled.

• FindControl(_id): Find a direct or nested control within this panel by id.

  • Arguments:
    • _id Any Control id (converted to string).
  • Returns: Struct.EchoChamberControlBase,Undefined

• SetSizeMode(_mode): Configure how this panel resolves its dock size.

  • Arguments:
    • _mode eEchoChamberPanelSizeMode Fixed or fit-to-content.
  • Returns: Struct.EchoChamberPanel

• SetSize(_value): Set dock thickness when using fixed sizing.

  • Arguments:
    • _value Real Dock thickness in pixels.
  • Returns: Struct.EchoChamberPanel
  • Additional details:
    • Raises max size if it is below the fixed size.

• SetFlowMode(_flow_mode): Set how child controls flow within the panel.

  • Arguments:
    • _flow_mode eEchoChamberPanelFlow Row or column layout.
  • Returns: Struct.EchoChamberPanel

• SetScrollable(_flag): Enable or disable vertical scrolling for this panel.

  • Arguments:
    • _flag Bool Scrollable flag.
  • Returns: Struct.EchoChamberPanel
  • Additional details:
    • When enabling, a scroll state is created if missing.

• SetScrollState(_state): Assign a scroll state for this panel (used when scrollable).

  • Arguments:
    • _state Struct.EchoChamberScrollState Scroll state to use.
  • Returns: Struct.EchoChamberPanel

• SetPadding(_value): Set panel content padding.

  • Arguments:
    • _value Real Padding in pixels.
  • Returns: Struct.EchoChamberPanel

• SetMargin(_x, [_y]): Set panel outer margin in GUI-space.

  • Arguments:
    • _x Real Horizontal margin.
    • _y Real Optional vertical margin (defaults to _x).
  • Returns: Struct.EchoChamberPanel

• SetGap(_value): Set panel control gap spacing.

  • Arguments:
    • _value Real Gap in pixels.
  • Returns: Struct.EchoChamberPanel

• SetRowHeight(_value): Set panel row height for controls.

  • Arguments:
    • _value Real Row height in pixels.
  • Returns: Struct.EchoChamberPanel

• SetCollapsedSize(_value): Set collapsed dock thickness for this panel.

  • Arguments:
    • _value Real Collapsed thickness in pixels.
  • Returns: Struct.EchoChamberPanel

• SetCollapseMode(_mode): Set the panel collapse mode.

  • Arguments:
    • _mode eEchoChamberCollapse Collapse direction (or NONE).
  • Returns: Struct.EchoChamberPanel

• SetCollapsed(_value): Set whether this panel is collapsed.

  • Arguments:
    • _value Bool Collapsed flag.
  • Returns: Struct.EchoChamberPanel

• SetPanelStyleKey(_key): Set the panel style key (for theme.panel_styles).

  • Arguments:
    • _key String Style key.
  • Returns: Struct.EchoChamberPanel

• SetMinSize(_value): Set minimum dock thickness when using fit-to-content.

  • Arguments:
    • _value Real Minimum thickness in pixels.
  • Returns: Struct.EchoChamberPanel
  • Additional details:
    • Raises max size if it is below the minimum.

• SetMaxSize(_value): Set maximum dock thickness when using fit-to-content.

  • Arguments:
    • _value Real Maximum thickness in pixels.
  • Returns: Struct.EchoChamberPanel

• SetContentDrawer(_fn): Assign a custom content drawer for this panel.

  • Arguments:
    • _fn Function Draw callback (signature: function(_root, _rect)), where _rect is the panel content rect.
  • Returns: Struct.EchoChamberPanel
  • Additional details:
    • The callback runs after controls/child panels are drawn.

• GetThickness(): Get panel thickness based on collapsed state.

  • Arguments: None.
  • Returns: Real
  • Additional details:
    • Returns collapsed_size when collapsed and a collapse mode is active.

• ResolveThickness(_root, _avail_width, _avail_height): Resolve actual thickness for layout considering size mode.

  • Arguments:
    • _root Struct.EchoChamberRoot Root for theme metrics.
    • _avail_width Real Available width.
    • _avail_height Real Available height.
  • Returns: Real
  • Additional details:
    • Includes margins and collapse handle sizing.
    • Uses fit-to-content sizing when size mode is FIT_CONTENT.

• Draw(_root): Draw this panel and its contents (controls or child panels).

  • Arguments:
    • _root Struct.EchoChamberRoot Root for theme and drawing helpers.
  • Returns: N/A

---

EchoChamberScrollState(_id)

Persistent scroll state for a scrollable region.

Arguments

• _id Any

Returns: Struct.EchoChamberScrollState

Public methods

• SetScrollY(_y): Set the scroll offset in pixels.

  • Arguments:
    • _y Real Scroll offset in pixels.
  • Returns: Struct.EchoChamberScrollState

• ScrollBy(_dy): Scroll by a delta in pixels (positive scrolls down).

  • Arguments:
    • _dy Real Delta in pixels.
  • Returns: Struct.EchoChamberScrollState

• Reset(): Reset scroll to the top.

  • Arguments: None.
  • Returns: Struct.EchoChamberScrollState

---

EchoChamberControlBase(_id)

Base type for all debug UI controls.

Arguments

• _id Any

Returns: Struct.EchoChamberControlBase

Public methods

• GetRoot(): Get the owning root for this control (if attached).

  • Arguments: None.
  • Returns: Struct.EchoChamberRoot,Undefined

• GetWindow(): Get the owning window for this control (if attached).

  • Arguments: None.
  • Returns: Struct.EchoChamberWindow,Undefined

• GetPanel(): Get the owning panel for this control (if attached).

  • Arguments: None.
  • Returns: Struct.EchoChamberPanel,Undefined

• SetPreferredWidth(_width): Set a preferred pixel width for this control when arranged in a row panel.

  • Arguments:
    • _width Real Preferred width in pixels.
  • Returns: Struct.EchoChamberControlBase

• SetPreferredHeight(_height): Set a preferred pixel height for this control.

  • Arguments:
    • _height Real Preferred height in pixels.
  • Returns: Struct.EchoChamberControlBase

• SetFillWidth(_flag): Set whether this control fills the available row width.

  • Arguments:
    • _flag Bool Fill width flag.
  • Returns: Struct.EchoChamberControlBase

• SetPadding(_x, [_y]): Set inner padding for this control.

  • Arguments:
    • _x Real Horizontal padding in pixels.
    • _y Real Optional vertical padding (defaults to _x).
  • Returns: Struct.EchoChamberControlBase

• SetMargin(_x, [_y]): Set outer margin for this control.

  • Arguments:
    • _x Real Horizontal margin in pixels.
    • _y Real Optional vertical margin (defaults to _x).
  • Returns: Struct.EchoChamberControlBase

• SetLabel(_text): Set the control’s display label (used by controls that render a label).

  • Arguments:
    • _text Any Label text (converted to string).
  • Returns: Struct.EchoChamberControlBase

• SetTooltip(_text): Set the control tooltip (shown on hover where supported).

  • Arguments:
    • _text Any Tooltip text (converted to string).
  • Returns: Struct.EchoChamberControlBase

• SetControlStyleKey(_style): Set the theme style key for this control (e.g. button/toggle/dropdown styles).

  • Arguments:
    • _style Any Style key (converted to string).
  • Returns: Struct.EchoChamberControlBase

• SetVisible(_flag): Show or hide this control.

  • Arguments:
    • _flag Bool Visible flag.
  • Returns: Struct.EchoChamberControlBase

• SetEnabled(_flag): Enable or disable this control (disabled controls should not accept input).

  • Arguments:
    • _flag Bool Enabled flag.
  • Returns: Struct.EchoChamberControlBase

• ProcessAndDraw(_root, _panel, _rect): Override: process input and draw using the given rect.

  • Arguments:
    • _root Struct.EchoChamberRoot Root for input and theme.
    • _panel Struct.EchoChamberPanel Owning panel.
    • _rect Struct {x1,y1,x2,y2} draw rect in GUI space.
  • Returns: N/A

---

EchoChamberLabel(_id)

Non-interactive text label.

Arguments

• _id Any

Returns: Struct.EchoChamberLabel

Public methods

• SetText(_text): Set the label text.

  • Arguments:
    • _text Any Text to display (converted to string).
  • Returns: Struct.EchoChamberLabel

• BindText(_source, [_key_or_fn]): Bind the label text to a struct field or getter function.

  • Arguments:
    • _source Struct,Function Struct to read from, or a getter function (signature: function() -> Any).
    • _key_or_fn String Optional struct field key when _source is a struct.
  • Returns: Struct.EchoChamberLabel
  • Additional details:
    • If _source is callable, it becomes the getter, _key_or_fn is ignored, and any struct binding is cleared.
    • If _source is a struct, _key_or_fn is the field key and any function binding is cleared.
    • If the getter returns undefined, the label keeps its previous text.

• SetAlign(_align): Set text alignment (“left”, “center”, “right”).

  • Arguments:
    • _align String Alignment string.
  • Returns: Struct.EchoChamberLabel

• UseSmallFont(_flag): Use the smaller theme font.

  • Arguments:
    • _flag Bool True to use font_small, false to use font_body.
  • Returns: Struct.EchoChamberLabel

---

EchoChamberTextBox(_id)

Non-interactive text box that wraps text to its width.

Arguments

• _id Any

Returns: Struct.EchoChamberTextBox

Public methods

• SetText(_text): Set the text content for this box.

  • Arguments:
    • _text Any Text to display (converted to string).
  • Returns: Struct.EchoChamberTextBox

• BindText(_source, [_key_or_fn]): Bind the text content to a struct field or getter function.

  • Arguments:
    • _source Struct,Function Struct to read from, or a getter function (signature: function() -> Any).
    • _key_or_fn String Optional struct field key when _source is a struct.
  • Returns: Struct.EchoChamberTextBox
  • Additional details:
    • If _source is callable, it becomes the getter, _key_or_fn is ignored, and any struct binding is cleared.
    • If _source is a struct, _key_or_fn is the field key and any function binding is cleared.
    • If the getter returns undefined, the text box keeps its previous text.

• SetAlign(_align): Set text alignment (“left”, “center”, “right”).

  • Arguments:
    • _align String Alignment string.
  • Returns: Struct.EchoChamberTextBox

• UseSmallFont(_flag): Use the smaller theme font.

  • Arguments:
    • _flag Bool True to use font_small, false to use font_body.
  • Returns: Struct.EchoChamberTextBox

• SetPadding(_x, [_y]): Set inner padding for the text box.

  • Arguments:
    • _x Real Horizontal padding in pixels.
    • _y Real Optional vertical padding (defaults to _x).
  • Returns: Struct.EchoChamberTextBox

• SetFillWidth(_flag): Set whether this box fills the available row width.

  • Arguments:
    • _flag Bool Fill width flag.
  • Returns: Struct.EchoChamberTextBox

---

EchoChamberButton(_id)

Clickable button.

Arguments

• _id Any

Returns: Struct.EchoChamberButton

Public methods

• OnClick(_fn): Set a callback to run when the button is activated.

  • Arguments:
    • _fn Function Callback (signature: function()).
  • Returns: Struct.EchoChamberButton
  • Additional details:
    • Triggered by mouse click or Enter while the button is focused.

• BindLabel(_source, [_key_or_fn]): Bind the button label to a struct field or getter function.

  • Arguments:
    • _source Struct,Function Struct to read from, or a getter function (signature: function() -> Any).
    • _key_or_fn String Optional struct field key when _source is a struct.
  • Returns: Struct.EchoChamberButton
  • Additional details:
    • If _source is callable, it becomes the getter, _key_or_fn is ignored, and any struct binding is cleared.
    • If _source is a struct, _key_or_fn is the field key and any function binding is cleared.
    • If the getter returns undefined, the button keeps its previous label.

---

EchoChamberSlider(_id)

Horizontal slider control.

Arguments

• _id Any

Returns: Struct.EchoChamberSlider

Public methods

• SetRange(_min, _max): Set the slider value range.

  • Arguments:
    • _min Real Minimum value.
    • _max Real Maximum value.
  • Returns: Struct.EchoChamberSlider

• SetStep(_step): Set snap step size (0 for no snapping).

  • Arguments:
    • _step Real Step size (0 disables snapping).
  • Returns: Struct.EchoChamberSlider

• BindValue(_source, [_key_or_fn]): Bind the slider value to a struct field or getter/setter functions.

  • Arguments:
    • _source Struct,Function Struct to bind, or a getter function (signature: function() -> Real).
    • _key_or_fn String,Function Optional struct field key, or a setter function (signature: function(_value)).
  • Returns: Struct.EchoChamberSlider
  • Additional details:
    • If _source is callable, it becomes the getter and _key_or_fn is used as the optional setter (if callable); struct binding is cleared.
    • If _source is a struct, _key_or_fn is treated as the field key and getter/setter functions are cleared.
    • If no setter is provided, the slider still changes visually and OnChange still fires.

• OnChange(_fn): Set a callback that runs when the value changes.

  • Arguments:
    • _fn Function Callback (signature: function(_value)).
  • Returns: Struct.EchoChamberSlider
  • Additional details:
    • Fires when the slider changes via user input.

---

EchoChamberToggle(_id)

Checkbox-style toggle.

Arguments

• _id Any

Returns: Struct.EchoChamberToggle

Public methods

• BindBool(_source, [_key_or_fn]): Bind the toggle value to a struct field or getter/setter functions.

  • Arguments:
    • _source Struct,Function Struct to bind, or a getter function (signature: function() -> Bool).
    • _key_or_fn String,Function Optional struct field key, or a setter function (signature: function(_value)).
  • Returns: Struct.EchoChamberToggle
  • Additional details:
    • If _source is callable, it becomes the getter and _key_or_fn is used as the optional setter (if callable); struct binding is cleared.
    • If _source is a struct, _key_or_fn is treated as the field key and getter/setter functions are cleared.
    • If no setter is provided, the toggle still updates visually and OnChange still fires.

• BindValue(_source, [_key_or_fn]): Bind the toggle value (alias of BindBool).

  • Arguments:
    • _source Struct,Function Struct to bind, or a getter function (signature: function() -> Bool).
    • _key_or_fn String,Function Optional struct field key, or a setter function (signature: function(_value)).
  • Returns: Struct.EchoChamberToggle
  • Additional details:
    • Same behavior as BindBool.

• OnChange(_fn): Set a callback that runs when the value changes.

  • Arguments:
    • _fn Function Callback (signature: function(_value)).
  • Returns: Struct.EchoChamberToggle
  • Additional details:
    • Fires when the toggle changes via click or keyboard.

---

EchoChamberTextInput(_id)

Single-line text input.

Arguments

• _id Any

Returns: Struct.EchoChamberTextInput

Public methods

• BindText(_struct, _key): Bind the text input to a struct field.

  • Arguments:
    • _struct Struct Struct holding the field to update.
    • _key String Field key to read/write.
  • Returns: Struct.EchoChamberTextInput
  • Additional details:
    • If _struct is not a struct, the binding is not changed.

• SetPlaceholder(_text): Set placeholder text shown when empty.

  • Arguments:
    • _text Any Placeholder text (converted to string).
  • Returns: Struct.EchoChamberTextInput

• OnChange(_fn): Set a callback that runs when text is committed.

  • Arguments:
    • _fn Function Callback (signature: function(_text)).
  • Returns: Struct.EchoChamberTextInput
  • Additional details:
    • Fired when the input is committed (blur or Enter).

• SetReadOnly(_flag): Toggle read-only mode.

  • Arguments:
    • _flag Bool Read-only flag.
  • Returns: Struct.EchoChamberTextInput

• SetMaxLength(_len): Set the maximum number of characters (0 for unlimited).

  • Arguments:
    • _len Real Maximum length (0 disables the limit).
  • Returns: Struct.EchoChamberTextInput

• SetAllowedChars(_chars): Restrict input to a specific set of characters.

  • Arguments:
    • _chars String Allowed characters (empty string allows all).
  • Returns: Struct.EchoChamberTextInput
• SetDeniedChars(_chars): Reject characters in the given set.
  • Arguments:
    • _chars String Denied characters.
  • Returns: Struct.EchoChamberTextInput

• SetNumericOnly(_flag, [_allow_decimal], [_allow_negative]): Restrict input to numeric characters.

  • Arguments:
    • _flag Bool Enable numeric-only mode.
    • _allow_decimal Bool Optional, allow decimal points (defaults to false).
    • _allow_negative Bool Optional, allow a leading negative sign (defaults to false).
  • Returns: Struct.EchoChamberTextInput

• SetSelectAllOnFocus(_flag): Select all text when the input gains focus.

  • Arguments:
    • _flag Bool Select-all flag.
  • Returns: Struct.EchoChamberTextInput

• SetFilter(_fn): Provide a filter function for inserted text.

  • Arguments:
    • _fn Function Filter callback (signature: function(_insert_text) -> String).
  • Returns: Struct.EchoChamberTextInput
  • Additional details:
    • The filter runs before allow/deny/numeric constraints.
    • Return an empty string to reject the insert.

• SetInvalid(_flag): Toggle invalid styling.

  • Arguments:
    • _flag Bool Invalid flag.
  • Returns: Struct.EchoChamberTextInput

---

EchoChamberSeparator(_id)

Non-interactive separator line.

Arguments

• _id Any

Returns: Struct.EchoChamberSeparator

Public methods

• SetOrientation(_ori): Set orientation (“horizontal” or “vertical”).
  • Arguments:
    • _ori String Orientation string.
  • Returns: Struct.EchoChamberSeparator

---

EchoChamberListView(_id)

Virtualized list view control for very large row counts. Draws and hit-tests only visible rows.

Arguments

• _id Any

Returns: Struct.EchoChamberListView

Public methods

• SetRowHeight(_h): Set row height in pixels.

  • Arguments:
    • _h Real Row height in pixels.
  • Returns: Struct.EchoChamberListView

• SetVisibleRows(_rows): Set a visible row count (auto height from row height).

  • Arguments:
    • _rows Real Visible row count (<= 0 clears).
  • Returns: Struct.EchoChamberListView
  • Additional details:
    • Setting this disables auto-height-from-count.

• SetAutoHeightFromCount(_max_rows): Auto-size to row count up to a maximum.

  • Arguments:
    • _max_rows Real Maximum row count to use for auto height (0 disables).
  • Returns: Struct.EchoChamberListView
  • Additional details:
    • Setting this clears any explicit visible row count.

• SetAutoWidthFromContent(_max_rows): Auto-size width from row content (sample limit).

  • Arguments:
    • _max_rows Real Maximum rows to sample (0 disables).
  • Returns: Struct.EchoChamberListView
  • Additional details:
    • Requires SetRowMeasure to be provided.

• SetFillWidth(_flag): Toggle fill width for row layouts.

  • Arguments:
    • _flag Bool Fill width flag.
  • Returns: Struct.EchoChamberListView

• SetPreferredHeight(_h): Set the preferred height for FitToContent.

  • Arguments:
    • _h Real Preferred height in pixels.
  • Returns: Struct.EchoChamberListView

• SetPreferredWidth(_w): Set the preferred width for FitToContent.

  • Arguments:
    • _w Real Preferred width in pixels.
  • Returns: Struct.EchoChamberListView

• SetCountGetter(_fn): Set a function that returns the row count.

  • Arguments:
    • _fn Function Row count callback (signature: function() -> Real).
  • Returns: Struct.EchoChamberListView
  • Additional details:
    • Called whenever the list view needs to know its row count.

• SetRowDrawer(_fn): Set a function that draws a row.

  • Arguments:
    • _fn Function Row draw callback (signature: function(_index, _rect, _is_selected, _is_hover)).
  • Returns: Struct.EchoChamberListView
  • Additional details:
    • _rect is {x1,y1,x2,y2} in GUI space and already excludes padding/scrollbar.
    • Background is already drawn; this function should only draw row content.

• SetRowMeasure(_fn): Set a function that returns row text/width for auto width.

  • Arguments:
    • _fn Function Measure callback (signature: function(_index, _root, _panel) -> String,Real).
  • Returns: Struct.EchoChamberListView
  • Additional details:
    • Returning a string uses the theme body font to measure width.
    • Returning a real value treats it as a pixel width.
    • Only used when SetAutoWidthFromContent is enabled.

• SetOnSelect(_fn): Set a callback that runs when selection changes.

  • Arguments:
    • _fn Function Callback (signature: function(_index)).
  • Returns: Struct.EchoChamberListView
  • Additional details:
    • Fired when the selected index changes via mouse or keyboard.

• SetOnActivate(_fn): Set a callback that runs when a row is activated.

  • Arguments:
    • _fn Function Callback (signature: function(_index)).
  • Returns: Struct.EchoChamberListView
  • Additional details:
    • Triggered by Enter while a row is selected.

• SetOnDoubleClick(_fn): Set a callback for double click on a row.

  • Arguments:
    • _fn Function Callback (signature: function(_index)).
  • Returns: Struct.EchoChamberListView
  • Additional details:
    • Triggered by a fast double-click on the same row.

• SetOnRightClick(_fn): Set a callback for right click on a row.

  • Arguments:
    • _fn Function Callback (signature: function(_index, _x, _y)).
  • Returns: Struct.EchoChamberListView
  • Additional details:
    • _x/_y are GUI-space mouse coordinates.
    • _index is -1 when right-clicking empty space.

• SetAutoScroll(_enabled): Enable or disable auto scroll to bottom.

  • Arguments:
    • _enabled Bool Auto-scroll flag.
  • Returns: Struct.EchoChamberListView
  • Additional details:
    • Enabling does not force a snap unless the list is already near bottom.

• JumpToBottom(): Jump scroll to the bottom.

  • Arguments: None.
  • Returns: Struct.EchoChamberListView
  • Additional details:
    • Also resumes auto-follow if it was paused.

• IsNearBottom(): Return true if the scroll is near the bottom.

  • Arguments: None.
  • Returns: Bool
  • Additional details:
    • Based on the last draw frame.

• IsAutoFollowPaused(): Return true if auto follow is paused.

  • Arguments: None.
  • Returns: Bool

• GetSelectedIndex(): Get the selected index.

  • Arguments: None.
  • Returns: Real

• SetSelectedIndex(_index): Set the selected index.

  • Arguments:
    • _index Real Selected row index (use -1 to clear selection).
  • Returns: Struct.EchoChamberListView

---

EchoChamberDropdownBase(_id)

Base dropdown control. Variants override selection and row behavior.

Arguments

• _id Any

Returns: Struct.EchoChamberDropdownBase

Public methods

• GetSelectedIndex(): Get the selected index.

  • Arguments: None.
  • Returns: Real

• SetSelectedIndex(_idx): Set the selected index.

  • Arguments:
    • _idx Real Selected index (clamped to available options).
  • Returns: N/A

• DrawOverlayRow(_root, _row_index, _row_rect, _hover, _selected): Draw an overlay row (override to customize).

  • Arguments:
    • _root Struct.EchoChamberRoot Root for theme access and metrics.
    • _row_index Real Row index being drawn.
    • _row_rect Struct {x1,y1,x2,y2} row rect in GUI space.
    • _hover Bool True if the row is hovered.
    • _selected Bool True if the row is selected.
  • Returns: N/A

• OnOverlayRowClick(_root, _row_index, _rect, _mx, _my): Handle overlay row click (override to customize).

  • Arguments:
    • _root Struct.EchoChamberRoot Root for focus/overlay management.
    • _row_index Real Row index that was clicked.
    • _rect Struct {x1,y1,x2,y2} row rect in GUI space.
    • _mx Real Mouse X (GUI space).
    • _my Real Mouse Y (GUI space).
  • Returns: N/A

• SetOptions(_array): Set the dropdown options array.

  • Arguments:
    • _array Array<String> Option labels.
  • Returns: Struct.EchoChamberDropdownBase
  • Additional details:
    • The array is stored directly; pass a new array to replace options.

• SetUnfoldDirection(_dir): Set the overlay unfold direction (“up” or “down”).

  • Arguments:
    • _dir String Direction string.
  • Returns: Struct.EchoChamberDropdownBase

• SetUseSelectedLabelWhenClosed(_flag): Use the selected label when closed.

  • Arguments:
    • _flag Bool True to show the selected option label in the base control.
  • Returns: Struct.EchoChamberDropdownBase

• SetOverlayMaxHeight(_height): Set the max overlay height.

  • Arguments:
    • _height Real Max height in pixels (0 disables the cap).
  • Returns: Struct.EchoChamberDropdownBase

---

EchoChamberDropdownSelect(_id)

Dropdown variant that binds a selected index to a struct field.

Arguments

• _id Any

Returns: Struct.EchoChamberDropdownSelect

Public methods

• BindIndex(_struct, _key): Bind the selected index to a struct field.

  • Arguments:
    • _struct Struct Struct holding the selected index field.
    • _key String Field key to read/write.
  • Returns: Struct.EchoChamberDropdownSelect

• OnChange(_fn): Set a callback that runs when the selected index changes.

  • Arguments:
    • _fn Function Callback (signature: function(_index, _value)).
  • Returns: Struct.EchoChamberDropdownSelect
  • Additional details:
    • Only fires when the selected index actually changes.

• GetSelectedIndex(): Get the selected index.

  • Arguments: None.
  • Returns: Real
• SetSelectedIndex(_idx): Set the selected index.
  • Arguments:
    • _idx Real Selected index (clamped to available options).
  • Returns: N/A
  • Additional details:
    • Updates the bound struct field when one is configured.

• OnOverlayRowClick(_root, _row_index, _rect, _mx, _my): Handle overlay row click.

  • Arguments:
    • _root Struct.EchoChamberRoot Root for overlay management.
    • _row_index Real Row index that was clicked.
    • _rect Struct {x1,y1,x2,y2} row rect in GUI space.
    • _mx Real Mouse X (GUI space).
    • _my Real Mouse Y (GUI space).
  • Returns: N/A

---

EchoChamberDropdownToggleMenu(_id)

Dropdown variant that shows a checklist menu that stays open.

Arguments

• _id Any

Returns: Struct.EchoChamberDropdownToggleMenu

Public methods

• SetItems(_items): Set the item list for the menu.

  • Arguments:
    • _items Array<Struct> Array of item structs ({ label, bind_struct, bind_key }).
  • Returns: Struct.EchoChamberDropdownToggleMenu
  • Additional details:
    • Each item reads/writes bind_struct[bind_key] as a Bool toggle.

• OnAnyChange(_fn): Set a callback that runs when any item changes.

  • Arguments:
    • _fn Function Callback (signature: function()).
  • Returns: Struct.EchoChamberDropdownToggleMenu

• GetSelectedIndex(): Get the selected index.

  • Arguments: None.
  • Returns: Real
  • Additional details:
    • Toggle menus do not track a single selection; this is a placeholder.

• SetSelectedIndex(_idx): Set the selected index.

  • Arguments:
    • _idx Real Ignored for toggle menus.
  • Returns: N/A

• DrawOverlayRow(_root, _row_index, _rect, _hover, _is_selected): Draw an overlay row.

  • Arguments:
    • _root Struct.EchoChamberRoot Root for theme access and metrics.
    • _row_index Real Row index being drawn.
    • _rect Struct {x1,y1,x2,y2} row rect in GUI space.
    • _hover Bool True if the row is hovered.
    • _is_selected Bool True if the row is selected (unused for toggle menus).
  • Returns: N/A

• OnOverlayRowClick(_root, _row_index, _rect, _mx, _my): Handle overlay row click.

  • Arguments:
    • _root Struct.EchoChamberRoot Root for overlay management.
    • _row_index Real Row index that was clicked.
    • _rect Struct {x1,y1,x2,y2} row rect in GUI space.
    • _mx Real Mouse X (GUI space).
    • _my Real Mouse Y (GUI space).
  • Returns: N/A

---

EchoChamberMachinePicker(_id)

Dropdown-style machine picker with search field at top.

Arguments

• _id Any

Returns: Struct.EchoChamberMachinePicker

Public methods

• SetListBuilder(_fn): Set a function that provides the list of machines based on the current filter text.

  • Arguments:
    • _fn Function List builder (signature: function(_filter_string) -> Struct with labels, index_map, and selected_index).
  • Returns: Struct.EchoChamberMachinePicker
  • Additional details:
    • labels is the filtered display list.
    • index_map maps filtered indices to real indices in your source list.
    • selected_index is the initially selected filtered index.

• OnSelect(_fn): Set a callback that runs when the user selects a machine.

  • Arguments:
    • _fn Function Callback (signature: function(_real_index)).
  • Returns: Struct.EchoChamberMachinePicker
  • Additional details:
    • _real_index comes from index_map for the selected filtered row.

• SetUnfoldDirection(_dir): Set the overlay unfold direction (“up” or “down”).

  • Arguments:
    • _dir String Direction string.
  • Returns: Struct.EchoChamberMachinePicker

---

EchoChamberOpenConsole(_ui_root)

Open or create the built-in Echo Console window (log history viewer + filters).

Arguments

• _ui_root Struct.EchoChamberRoot

Returns: Struct.EchoChamberWindow

---

Echo Chamber Themes

Themes are just structs that hold fonts, sprites, colors, spacing, and sizing rules. They’re essentially a big bag of settings that Echo Chamber reads when drawing.

Default theme structure

The base theme constructor is: EchoChamberTheme().

It outputs a struct with fields in roughly these buckets (names below are from the actual theme struct):

CORE

• statement
• gap

BUTTON

• button_styles

COL

• col_window_bg
• col_panel_bg
• col_text
• col_text_dim
• col_accent
• col_accent_dim
• col_muted
• col_muted_strong
• col_error
• col_hover_row
• col_hover_row_alt
• col_menu_bg
• col_menu_hover
• col_label_hover_bg
• col_checkbox_off
• col_checkbox_on

DEFAULT

• default_control_width
• default_control_max_width
• default_padding
• default_row_height

DROPDOWN

• dropdown_styles

FONT

• font_header
• font_body
• font_small

HEADER

• header_styles

LABEL

• label_styles (style keys include font, text, text_alpha, text_disabled, text_disabled_alpha)

LIST

• list_row_styles (style keys include bg_*, text_*, and *_alpha variants)

SEPARATOR

• separator_styles (style keys include line, line_alpha, line_disabled, line_disabled_alpha)

MIN

• min_hit_h

PAD

• pad_x
• pad_y

PANEL

• panel_styles (style keys include bg, border, bg_alpha, border_alpha)
• panel_padding
• panel_gap
• panel_row_height
• panel_collapsed_size
• panel_collapse_handle_size

POPUP

• popup_styles

ROW

• row_header_h
• row_toolbar_h
• row_small_h

SCROLLBAR

• scrollbar_styles
• scrollbar_w

TEXTINPUT

• textinput_styles

TOGGLE

• toggle_styles

TOOLTIP

• tooltip_styles
• tooltip_delay_ms
• tooltip_padding

UI

• ui_scale

WINDOW

• window_styles
• window_padding
• window_titlebar_h
• window_resize_grip_size
• window_minimized_h
• window_button_gap
• window_button_size
• window_button_close_label
• window_button_minimize_label
• window_button_restore_label
• window_button_pin_label
• window_button_unpin_label

Style map conventions

Most control styles are stored in a map of named styles (including _default). A control reads its style_id key and falls back to _default.

Common interaction keys (buttons, toggles, dropdowns, text inputs):

• bg, bg_alpha
• border, border_alpha
• text, text_alpha
• bg_hover, bg_hover_alpha, border_hover, border_hover_alpha, text_hover, text_hover_alpha
• bg_pressed, bg_pressed_alpha, border_pressed, border_pressed_alpha, text_pressed, text_pressed_alpha
• bg_disabled, bg_disabled_alpha, border_disabled, border_disabled_alpha, text_disabled, text_disabled_alpha

Control-specific keys

• label_styles: font, text, text_alpha, text_disabled, text_disabled_alpha.
• separator_styles: line, line_alpha, line_disabled, line_disabled_alpha.
• list_row_styles: bg_normal, bg_hover, bg_selected, bg_pressed, bg_disabled, text_normal, text_hover, text_selected, text_pressed, text_disabled, and matching *_alpha keys.
• toggle_styles: box_on, box_off, box_border, plus box_*_hover, box_*_pressed, box_*_disabled, and matching *_alpha keys.
• slider_styles: track_bg, track_fill, knob, plus hover/pressed/disabled variants and matching *_alpha keys.
• dropdown_styles: bg_open, border_open, text_open with *_alpha keys, plus overlay keys:
  • overlay_bg, overlay_bg_alpha, overlay_border, overlay_border_alpha
  • overlay_row_* and overlay_text_* keys, each with *_alpha
  • overlay_search_bg, overlay_search_hover_bg, overlay_search_border, overlay_search_text, overlay_search_placeholder, each with *_alpha
• textinput_styles: bg_active, border_active, text_active, bg_readonly, border_readonly, text_readonly, bg_invalid, border_invalid, text_invalid with *_alpha keys, plus:
  • selection_bg, selection_text, selection_bg_inactive, selection_text_inactive with *_alpha
  • caret_color, caret_alpha, caret_char, caret_blink_ms, caret_width, caret_height, caret_inset_x, caret_inset_y
  • placeholder, placeholder_alpha, align
• scrollbar_styles: track_bg, track_bg_hover, track_border, handle_bg, handle_bg_hover, handle_bg_pressed, handle_border, each with *_alpha.

---

Theme constructors

EchoChamberTheme()

Creates the shared default UI theme container for Echo Chamber visuals.

Returns: Struct.EchoChamberTheme

If you wish to create your own themes, the simplest way is to create a constructor that inherits from the EchoChamberTheme and then just override the specific values you wish to change.

Public methods

• RefreshMetrics(): Recompute row heights based on current fonts and padding.
  • Arguments: None.
  • Returns: N/A
  • Additional details:
    • Updates derived layout metrics such as row heights, padding, and window sizing.

Pre-built Custom Themes

EchoChamberThemeMidnightNeon()

Dark midnight blues with neon purple accent.

Returns: Struct.EchoChamberThemeMidnightNeon

EchoChamberThemeAmberForest()

Forest greens with warm amber highlights.

Returns: Struct.EchoChamberThemeAmberForest

EchoChamberThemeSakuraPunch()

Inky plum with candy pink accents.

Returns: Struct.EchoChamberThemeSakuraPunch

EchoChamberThemeArcadeWave()

Retro arcade navy with bright cyan accents.

Returns: Struct.EchoChamberThemeArcadeWave

EchoChamberThemeCircuitCandy()

Playful teal and orange on a soft dark background.

Returns: Struct.EchoChamberThemeCircuitCandy

EchoChamberThemeToxicTerminal()

Acid terminal green with rogue magenta highlights.

Returns: Struct.EchoChamberThemeToxicTerminal

EchoChamberThemeSunsetGlitch()

Sunset oranges colliding with cyan and grape.

Returns: Struct.EchoChamberThemeSunsetGlitch

EchoChamberThemeBubblegumTerminal()

Bubblegum pink UI with teal statement nodes.

Returns: Struct.EchoChamberThemeBubblegumTerminal

EchoChamberThemeMangoMint()

Warm mango chrome with mint green graph.

Returns: Struct.EchoChamberThemeMangoMint

---

Functions

EchoChamberThemeTryGetFont(_font_name)

Resolve a font asset by name. If missing, returns the current draw font.

Arguments

• _font_name String, Asset.GMFont

Returns: Asset.GMFont

EchoChamberThemeTryGetSprite(_sprite_name)

Resolve a sprite asset by name. If missing, returns -1.

Arguments

• _sprite_name String, Asset.GMSprite

Returns: Asset.GMSprite,Real