Merge dev for 1.1.2 release

README.md

@@ -37,12 +37,29 @@ dpg.destroy_context()
 ```python
 with dpg.window(label="Engine"):
     with dpgg.gauge_panel(label="Powertrain", width=-1, height=260):
-        with dpgg.gauge_grid(columns=3):
+        with dpgg.gauge_grid(columns=3, min_column_width=180):
             dpgg.analog_gauge(tag="rpm", label="RPM", max_value=8000, redline_start=6500)
             dpgg.bar_gauge(tag="boost", label="Boost", max_value=30, unit="psi")
             dpgg.status_light(tag="ecu", label="ECU", state=True)
 ```
 
+`gauge_grid` is a wrapping, table-backed layout. An integer `columns` value is a maximum; if the
+parent is too narrow for `columns * min_column_width`, the grid uses fewer columns and continues on
+the next row instead of creating a horizontal scrollbar. Use `columns="auto"` for autobreak mode,
+where the grid derives the column count from the available width. Gauges with `width=0` or
+`width=-1` fill their grid cell.
+
+Gauges also accept Dear PyGui's usual `parent` argument for adding a gauge to an
+existing container after that container has already been created:
+
+```python
+dpg.add_window(tag="data_input", label="Data Input")
+dpgg.analog_gauge(tag="rpm", parent="data_input", label="RPM")
+```
+
+The `parent` is applied to the gauge's outer group. The gauge's internal drawlist
+is then parented to that group.
+
 ## GUI-Thread Contract
 
 Dear PyGui item operations must happen on the GUI thread. Gauge creation and runtime updates such as

docs/API_REFERENCE.md

@@ -24,7 +24,14 @@ Creation functions are context managers and accept common options such as `tag`,
 ## Layout Helpers
 
 - `gauge_panel(**config)`: child-window panel for grouped gauges.
-- `gauge_grid(**config)`: lightweight horizontal gauge group.
+- `gauge_grid(columns=1, min_column_width=180, fit_gauges=True, cell_padding=12, **config)`:
+  table-backed
+  wrapping gauge grid. Pass an integer `columns` to set the maximum column count; if the parent is
+  narrower than `columns * min_column_width`, the grid uses fewer columns and wraps gauges onto
+  later rows to avoid horizontal scrolling. Pass `columns="auto"` for autobreak mode, where the
+  column count is derived entirely from the available width and `min_column_width`. Gauges without
+  an explicit positive width fill their grid cell. Increase `cell_padding` if a custom Dear PyGui
+  theme uses wider table padding or borders.
 
 ## Runtime API
 

docs/EXAMPLES.md

@@ -15,6 +15,7 @@ Run examples with `uv run python examples/<name>.py`.
 - `thresholds_markers.py`
 - `animations.py`
 - `dashboard.py`
+- `layout_grid.py`
 - `sizing.py`
 - `live_high_rate.py`
 - `live_worst_case.py`

examples/autobreak_runtime.py

@@ -0,0 +1,91 @@
+# pyright: reportGeneralTypeIssues=false
+
+import dearpygui.dearpygui as dpg
+
+import dpg_gauges as dpgg
+
+COUNTERS: dict[str, int] = {}
+
+
+def add_runtime_gauges(grid: str, prefix: str, count: int = 6) -> None:
+    start = COUNTERS.get(grid, 0)
+    for offset in range(count):
+        index = start + offset
+        value = (index * 17 + 23) % 101
+        dpgg.digital_gauge(
+            tag=f"{prefix}_{index}",
+            parent=grid,
+            label=f"{prefix} {index + 1}",
+            value=value,
+            unit="%",
+            height=72,
+        )
+    COUNTERS[grid] = start + count
+
+
+def main() -> None:
+    dpg.create_context()
+    try:
+        with dpg.window(label="Runtime autobreak tests", width=1220, height=900):
+            dpg.add_text("Fixed panel, runtime gauges: expected 5 columns at width=1000")
+            with dpgg.gauge_panel(label="Fixed 1000 x 230", width=1000, height=230):
+                dpgg.gauge_grid(tag="fixed_runtime_grid", columns="auto", min_column_width=180)
+            dpg.add_button(
+                label="Add fixed gauges",
+                callback=lambda: add_runtime_gauges("fixed_runtime_grid", "fixed"),
+            )
+
+            dpg.add_spacer(height=10)
+            dpg.add_text("Autosize panel with configured size: should match fixed panel")
+            with dpgg.gauge_panel(
+                label="Autosize configured 1000 x 230",
+                width=1000,
+                height=230,
+                autosize_x=True,
+                autosize_y=True,
+            ):
+                dpgg.gauge_grid(tag="autosize_runtime_grid", columns="auto", min_column_width=180)
+            dpg.add_button(
+                label="Add autosize gauges",
+                callback=lambda: add_runtime_gauges("autosize_runtime_grid", "auto"),
+            )
+
+            dpg.add_spacer(height=10)
+            dpg.add_text("Autosize panel without width: grid falls back to the owning window width")
+            with dpgg.gauge_panel(label="Autosize inherited width", height=230, autosize_x=True):
+                dpgg.gauge_grid(tag="inherited_runtime_grid", columns="auto", min_column_width=180)
+            dpg.add_button(
+                label="Add inherited-width gauges",
+                callback=lambda: add_runtime_gauges("inherited_runtime_grid", "inherited"),
+            )
+
+            dpg.add_spacer(height=10)
+            dpg.add_text("Narrow autosize panel: expected 2 columns at width=430")
+            with dpgg.gauge_panel(
+                label="Narrow autosize 430 x 210",
+                width=430,
+                height=210,
+                autosize_x=True,
+                autosize_y=True,
+            ):
+                dpgg.gauge_grid(tag="narrow_runtime_grid", columns="auto", min_column_width=180)
+            dpg.add_button(
+                label="Add narrow gauges",
+                callback=lambda: add_runtime_gauges("narrow_runtime_grid", "narrow"),
+            )
+
+        dpg.set_frame_callback(2, lambda: add_runtime_gauges("fixed_runtime_grid", "fixed"))
+        dpg.set_frame_callback(3, lambda: add_runtime_gauges("autosize_runtime_grid", "auto"))
+        dpg.set_frame_callback(4, lambda: add_runtime_gauges("inherited_runtime_grid", "inherited"))
+        dpg.set_frame_callback(5, lambda: add_runtime_gauges("narrow_runtime_grid", "narrow"))
+
+        dpg.create_viewport(title="dpg-gauges runtime autobreak", width=1260, height=940)
+        dpg.setup_dearpygui()
+        dpg.show_viewport()
+        dpg.start_dearpygui()
+    finally:
+        dpg.destroy_context()
+
+
+if __name__ == "__main__":
+    main()

examples/layout_grid.py

@@ -0,0 +1,65 @@
+# pyright: reportGeneralTypeIssues=false
+
+import dearpygui.dearpygui as dpg
+
+import dpg_gauges as dpgg
+
+
+def main() -> None:
+    dpg.create_context()
+    try:
+        with dpg.window(label="Grid layout", width=820, height=620):
+            dpg.add_text("Max columns: columns=3 wraps onto new rows after every third gauge")
+            with dpgg.gauge_panel(label="Wide panel", width=-1, height=270), dpgg.gauge_grid(
+                columns=3, min_column_width=190
+            ):
+                dpgg.analog_gauge(
+                    tag="grid_rpm", label="RPM", value=4200, max_value=8000, height=190
+                )
+                dpgg.digital_gauge(
+                    tag="grid_speed", label="Speed", value=88, unit="km/h", height=90
+                )
+                dpgg.bar_gauge(
+                    tag="grid_boost", label="Boost", value=12.5, max_value=30, unit="psi"
+                )
+                dpgg.status_light(tag="grid_ecu", label="ECU", state=True, height=70)
+                dpgg.battery_gauge(tag="grid_battery", label="Battery", value=74, height=160)
+
+            dpg.add_spacer(height=8)
+            dpg.add_text("Autobreak: columns='auto' chooses columns from available width")
+            with (
+                dpgg.gauge_panel(label="Autobreak narrow panel", width=430, height=285),
+                dpgg.gauge_grid(columns="auto", min_column_width=180),
+            ):
+                for index, value in enumerate((18, 42, 67, 91, 55), start=1):
+                    dpgg.digital_gauge(
+                        tag=f"narrow_{index}",
+                        label=f"Metric {index}",
+                        value=value,
+                        unit="%",
+                        height=72,
+                    )
+
+            dpg.add_spacer(height=8)
+            dpg.add_text("Panels can also occupy grid cells")
+            with dpgg.gauge_grid(columns=2, min_column_width=240):
+                with dpgg.gauge_panel(label="Left cell", height=120):
+                    dpgg.segmented_gauge(tag="left_segments", label="Load", value=70, height=80)
+                with dpgg.gauge_panel(label="Right cell", height=120):
+                    dpgg.multi_value_gauge(
+                        tag="right_values",
+                        label="Sensors",
+                        values={"oil": 82, "fuel": 64, "air": 31},
+                        height=92,
+                    )
+
+        dpg.create_viewport(title="dpg-gauges grid layout", width=860, height=660)
+        dpg.setup_dearpygui()
+        dpg.show_viewport()
+        dpg.start_dearpygui()
+    finally:
+        dpg.destroy_context()
+
+
+if __name__ == "__main__":
+    main()

examples/reconnect_grid.py

@@ -0,0 +1,62 @@
+# pyright: reportGeneralTypeIssues=false
+
+import dearpygui.dearpygui as dpg
+
+import dpg_gauges as dpgg
+
+GRID = "connector_grid"
+ACTIVE_TAGS: list[str] = []
+CYCLE = 0
+
+
+def connect_connector() -> None:
+    global CYCLE
+    if ACTIVE_TAGS:
+        return
+    for index in range(5):
+        tag = f"connector_{CYCLE}_{index}"
+        ACTIVE_TAGS.append(tag)
+        dpgg.digital_gauge(
+            tag=tag,
+            parent=GRID,
+            label=f"Conn {CYCLE}.{index}",
+            value=(CYCLE * 13 + index * 17) % 100,
+            unit="%",
+            height=72,
+        )
+    CYCLE += 1
+
+
+def disconnect_connector() -> None:
+    while ACTIVE_TAGS:
+        dpgg.delete_gauge(ACTIVE_TAGS.pop())
+
+
+def reconnect_connector() -> None:
+    disconnect_connector()
+    connect_connector()
+
+
+def main() -> None:
+    dpg.create_context()
+    try:
+        with dpg.window(label="Reconnect grid test", width=860, height=420):
+            dpg.add_text("Reconnect should always start at the first grid cell.")
+            with dpgg.gauge_panel(label="Connector gauges", width=820, height=230):
+                dpgg.gauge_grid(tag=GRID, columns="auto", min_column_width=180)
+            with dpg.group(horizontal=True):
+                dpg.add_button(label="Connect", callback=connect_connector)
+                dpg.add_button(label="Disconnect", callback=disconnect_connector)
+                dpg.add_button(label="Reconnect", callback=reconnect_connector)
+
+        dpg.set_frame_callback(2, connect_connector)
+        dpg.create_viewport(title="dpg-gauges reconnect grid", width=900, height=460)
+        dpg.setup_dearpygui()
+        dpg.show_viewport()
+        dpg.start_dearpygui()
+    finally:
+        dpg.destroy_context()
+
+
+if __name__ == "__main__":
+    main()

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "dpg-gauges"
-version = "1.0.0"
+version = "1.1.2"
 description = "Dear PyGui gauge widgets for dashboards and telemetry displays"
 readme = "README.md"
 authors = [

src/dpg_gauges/__init__.py

@@ -35,7 +35,7 @@ from .types import (
     ThresholdBand,
 )
 
-__version__ = "1.0.0"
+__version__ = "1.1.2"
 
 __all__ = [
     "configure",

src/dpg_gauges/api.py

@@ -4,7 +4,6 @@ from __future__ import annotations
 
 from typing import Any
 
-from . import widget as _widget
 from .gauges import GaugeConfig
 from .state import (
     configure_gauges,
@@ -17,6 +16,44 @@ from .state import (
     update_runtime_gauge,
 )
 from .types import GaugeMarker, GaugeValue, Tag, ThresholdBand
+from .widget import (
+    analog_gauge,
+    bar_gauge,
+    battery_gauge,
+    compass_gauge,
+    digital_gauge,
+    gauge_grid,
+    gauge_panel,
+    level_gauge,
+    multi_value_gauge,
+    segmented_gauge,
+    status_light,
+    thermometer_gauge,
+)
+
+__all__ = [
+    "analog_gauge",
+    "bar_gauge",
+    "battery_gauge",
+    "compass_gauge",
+    "configure",
+    "configure_gauge",
+    "delete_gauge",
+    "digital_gauge",
+    "gauge_grid",
+    "gauge_panel",
+    "get_value",
+    "level_gauge",
+    "multi_value_gauge",
+    "segmented_gauge",
+    "set_markers",
+    "set_show",
+    "set_thresholds",
+    "set_value",
+    "status_light",
+    "thermometer_gauge",
+    "update_gauge",
+]
 
 
 def configure(**config: Any) -> None:
@@ -24,20 +61,6 @@ def configure(**config: Any) -> None:
     configure_gauges(**config)
 
 
-analog_gauge = _widget.analog_gauge
-digital_gauge = _widget.digital_gauge
-bar_gauge = _widget.bar_gauge
-level_gauge = _widget.level_gauge
-status_light = _widget.status_light
-segmented_gauge = _widget.segmented_gauge
-compass_gauge = _widget.compass_gauge
-thermometer_gauge = _widget.thermometer_gauge
-battery_gauge = _widget.battery_gauge
-multi_value_gauge = _widget.multi_value_gauge
-gauge_panel = _widget.gauge_panel
-gauge_grid = _widget.gauge_grid
-
-
 def set_value(tag: Tag, value: GaugeValue) -> None:
     """Set a gauge target value from the Dear PyGui GUI thread."""
     set_runtime_value(tag, value)
@@ -78,4 +101,4 @@ def delete_gauge(tag: Tag) -> None:
     delete_runtime_gauge(tag)
 
 
-__all_configs__ = (GaugeConfig,)
+__all_configs__: tuple[type[GaugeConfig], ...] = (GaugeConfig,)

src/dpg_gauges/gauges.py

@@ -36,6 +36,7 @@ def _normalize_smoothing(value: SmoothingConfig | bool | None) -> SmoothingConfi
 @dataclass(frozen=True)
 class GaugeConfig:
     tag: Tag | None = None
+    parent: Tag | None = None
     label: str | None = None
     value: GaugeValue = None
     min_value: float = 0.0

src/dpg_gauges/renderer.py

@@ -50,7 +50,7 @@ class GaugeRenderer:
 
     def __init__(self, state: GaugeState) -> None:
         self.state = state
-        self.layers = DrawLayers()
+        self.layers: DrawLayers = DrawLayers()
         self._scheduled = False
 
     def render(self) -> None:
@@ -62,9 +62,12 @@ class GaugeRenderer:
         if state.animation_state.active or state.smoothing_state.active:
             self.schedule_frame()
 
-    def delete(self) -> None:
-        if dpg.does_item_exist(self.state.container_tag):
-            dpg.delete_item(self.state.container_tag)
+    def delete(self) -> Tag | None:
+        if not dpg.does_item_exist(self.state.container_tag):
+            return None
+        parent = dpg.get_item_parent(self.state.container_tag)
+        dpg.delete_item(self.state.container_tag)
+        return cast(Tag | None, parent)
 
     def schedule_frame(self) -> None:
         if self._scheduled:

src/dpg_gauges/state.py

@@ -301,9 +301,14 @@ def set_runtime_show(tag: Tag, show: bool) -> None:
 
 def delete_runtime_gauge(tag: Tag) -> None:
     state = get_gauge_state(tag)
+    layout_parent: Tag | None = None
     if state.renderer is not None:
-        state.renderer.delete()
+        layout_parent = state.renderer.delete()
     del _registry[tag]
+    if layout_parent is not None:
+        from .widget import _cleanup_grid_after_item_delete
+
+        _cleanup_grid_after_item_delete(layout_parent)
 
 
 def render_runtime_gauge(state: GaugeState) -> None:

src/dpg_gauges/widget.py

@@ -3,7 +3,7 @@
 from __future__ import annotations
 
 from collections.abc import Mapping, Sequence
-from dataclasses import dataclass
+from dataclasses import dataclass, replace
 from types import TracebackType
 from typing import Any, Generic, Literal, TypeVar, cast
 
@@ -42,6 +42,11 @@ ConfigT = TypeVar("ConfigT", bound=GaugeConfig)
 _dpg_context_active = False
 _original_create_context = dpg.create_context
 _original_destroy_context = dpg.destroy_context
+_active_grids: list[GridLayoutContext] = []
+_grid_layouts: dict[Tag, GridLayoutContext] = {}
+_pending_grid_cleanups: set[Tag] = set()
+_layout_suspend_depth = 0
+_grid_refresh_scheduled = False
 
 
 def _install_context_tracking() -> None:
@@ -55,11 +60,15 @@ def _install_context_tracking() -> None:
         return result
 
     def destroy_context(*args: Any, **kwargs: Any) -> Any:
-        global _dpg_context_active
+        global _dpg_context_active, _grid_refresh_scheduled
         try:
             return _original_destroy_context(*args, **kwargs)
         finally:
             _dpg_context_active = False
+            _active_grids.clear()
+            _grid_layouts.clear()
+            _pending_grid_cleanups.clear()
+            _grid_refresh_scheduled = False
 
     create_context.__dpg_gauges_wrapped__ = True  # type: ignore[attr-defined]
     destroy_context.__dpg_gauges_wrapped__ = True  # type: ignore[attr-defined]
@@ -73,10 +82,14 @@ _install_context_tracking()
 @dataclass
 class GaugeContext(Generic[ConfigT]):
     state: GaugeState
+    _suspended_layout: bool = False
 
     def __enter__(self) -> ConfigT:
+        global _layout_suspend_depth
         if _dpg_context_active and dpg.does_item_exist(self.state.container_tag):
             dpg.push_container_stack(self.state.container_tag)
+            _layout_suspend_depth += 1
+            self._suspended_layout = True
         return cast(ConfigT, self.state.config)
 
     def __exit__(
@@ -85,17 +98,27 @@ class GaugeContext(Generic[ConfigT]):
         exc: BaseException | None,
         traceback: TracebackType | None,
     ) -> None:
+        global _layout_suspend_depth
         if _dpg_context_active and dpg.does_item_exist(self.state.container_tag):
             dpg.pop_container_stack()
+        if self._suspended_layout:
+            _layout_suspend_depth = max(_layout_suspend_depth - 1, 0)
+            self._suspended_layout = False
 
 
 @dataclass
 class LayoutContext:
     tag: Tag | None
+    suspend_layout: bool = True
+    _suspended_layout: bool = False
 
     def __enter__(self) -> Tag | None:
+        global _layout_suspend_depth
         if self.tag is not None and _dpg_context_active and dpg.does_item_exist(self.tag):
             dpg.push_container_stack(self.tag)
+            if self.suspend_layout:
+                _layout_suspend_depth += 1
+                self._suspended_layout = True
         return self.tag
 
     def __exit__(
@@ -104,14 +127,104 @@ class LayoutContext:
         exc: BaseException | None,
         traceback: TracebackType | None,
     ) -> None:
+        global _layout_suspend_depth
         if self.tag is not None and _dpg_context_active and dpg.does_item_exist(self.tag):
             dpg.pop_container_stack()
+        if self._suspended_layout:
+            _layout_suspend_depth = max(_layout_suspend_depth - 1, 0)
+            self._suspended_layout = False
+
+
+@dataclass
+class GridLayoutContext:
+    tag: Tag | None
+    parent: Tag | None
+    width: int
+    requested_columns: int | Literal["auto"]
+    columns: int
+    min_column_width: int
+    fit_gauges: bool
+    cell_padding: int = 12
+    row_height: int = 0
+    available_width: int = 0
+    _next_index: int = 0
+    _current_row: Tag | None = None
+    _current_row_cells: int = 0
+    _suspend_depth: int = 0
+
+    def __enter__(self) -> Tag | None:
+        self._suspend_depth = _layout_suspend_depth
+        if self.tag is not None and _dpg_context_active and dpg.does_item_exist(self.tag):
+            _active_grids.append(self)
+        return self.tag
+
+    def __exit__(
+        self,
+        exc_type: type[BaseException] | None,
+        exc: BaseException | None,
+        traceback: TracebackType | None,
+    ) -> None:
+        if _active_grids and _active_grids[-1] is self:
+            _active_grids.pop()
+        elif self in _active_grids:
+            _active_grids.remove(self)
+
+    def next_cell(self) -> tuple[Tag | None, int | None]:
+        if self.tag is None or not _dpg_context_active or not dpg.does_item_exist(self.tag):
+            return None, None
+        self.refresh_columns()
+        empty_cell = _first_empty_table_cell(self.tag)
+        if empty_cell is not None:
+            self._next_index = _table_cell_count(self.tag)
+            self._current_row, self._current_row_cells = _last_row_state(
+                self.tag, self.columns
+            )
+            return empty_cell, self.cell_width()
+        if self._current_row is None or self._current_row_cells >= self.columns:
+            self._current_row = dpg.add_table_row(parent=self.tag, height=self.row_height)
+            self._current_row_cells = 0
+        cell = dpg.add_table_cell(parent=self._current_row or self.tag)
+        self._next_index += 1
+        self._current_row_cells += 1
+        return cell, self.cell_width()
+
+    def cell_width(self) -> int | None:
+        if self.available_width <= 0:
+            return None
+        return max(int(self.available_width / self.columns) - self.cell_padding, 1)
+
+    def refresh_columns(self) -> None:
+        if self.tag is None or not _dpg_context_active or not dpg.does_item_exist(self.tag):
+            return
+        available_width = _available_layout_width(self.parent, self.width)
+        if available_width <= 0:
+            return
+        columns = _resolved_columns(self.requested_columns, self.min_column_width, available_width)
+        if columns == self.columns and available_width == self.available_width:
+            return
+        _reflow_table_cells(self.tag, columns, self.row_height)
+        self.columns = columns
+        self.available_width = available_width
+        self._next_index = _table_cell_count(self.tag)
+        self._current_row, self._current_row_cells = _last_row_state(self.tag, self.columns)
 
 
 def create_gauge_context(gauge_type: str, config: ConfigT) -> GaugeContext[ConfigT]:
     if not _dpg_context_active:
         return GaugeContext(register_gauge(gauge_type, config))
 
+    layout_parent, layout_width, layout_grid = _next_layout_cell(config.parent)
+    if layout_parent is not None:
+        updates: dict[str, Any] = {"parent": layout_parent}
+        if (
+            layout_width is not None
+            and layout_grid is not None
+            and layout_grid.fit_gauges
+            and config.width <= 0
+        ):
+            updates["width"] = layout_width
+        config = replace(config, **updates)
+
     tag = config.tag
     container_tag = tag if tag is not None else None
     drawlist_tag = f"{tag}__drawlist" if tag is not None else None
@@ -122,6 +235,7 @@ def create_gauge_context(gauge_type: str, config: ConfigT) -> GaugeContext[Confi
 
     container = dpg.add_group(
         tag=container_tag or 0,
+        parent=config.parent or 0,
         width=width,
         height=height,
         show=config.show,
@@ -150,9 +264,239 @@ def create_gauge_context(gauge_type: str, config: ConfigT) -> GaugeContext[Confi
     return GaugeContext(state)
 
 
+def _next_layout_cell(
+    parent: Tag | None,
+) -> tuple[Tag | None, int | None, GridLayoutContext | None]:
+    if parent is not None:
+        grid = _grid_layouts.get(parent)
+        if grid is not None:
+            cell, width = grid.next_cell()
+            return cell, width, grid
+        return None, None, None
+
+    grid = _current_grid()
+    if grid is None:
+        return None, None, None
+    cell, width = grid.next_cell()
+    return cell, width, grid
+
+
+def _current_grid() -> GridLayoutContext | None:
+    if not _active_grids:
+        return None
+    grid = _active_grids[-1]
+    if grid._suspend_depth != _layout_suspend_depth:
+        return None
+    return grid
+
+
+def _available_layout_width(parent: Tag | None, width: int) -> int:
+    if width > 0:
+        return width
+    if parent is not None and dpg.does_item_exist(parent):
+        return _available_layout_width_for_item(parent)
+    try:
+        container = dpg.top_container_stack()
+    except Exception:
+        return 0
+    if container is not None and dpg.does_item_exist(container):
+        return _available_layout_width_for_item(container)
+    return 0
+
+
+def _available_layout_width_for_item(item: Tag) -> int:
+    while item is not None and dpg.does_item_exist(item):
+        width = _item_layout_width(item)
+        if width > 0:
+            return width
+        parent = dpg.get_item_parent(item)
+        if parent is None or parent == item:
+            break
+        item = parent
+    return 0
+
+
+def _item_layout_width(item: Tag) -> int:
+    width = max(dpg.get_item_width(item) or 0, 0)
+    if width > 0:
+        return width
+    try:
+        configured_width = dpg.get_item_configuration(item).get("width", 0)
+    except Exception:
+        return 0
+    if isinstance(configured_width, int | float) and configured_width > 0:
+        return int(configured_width)
+    return 0
+
+
+def _set_table_column_count(table: Tag, columns: int) -> None:
+    children = cast(dict[int, list[Tag]], dpg.get_item_children(table) or {})
+    table_columns = list(children.get(0, []))
+    current = len(table_columns)
+    if columns > current:
+        for _ in range(columns - current):
+            dpg.add_table_column(parent=table, width_stretch=True, init_width_or_weight=1.0)
+    elif columns < current:
+        for column in reversed(table_columns[columns:]):
+            dpg.delete_item(column)
+
+
+def _reflow_table_cells(table: Tag, columns: int, row_height: int = 0) -> None:
+    columns = max(int(columns), 1)
+    cell_contents = _table_cell_contents(table)
+    old_rows = _table_rows(table)
+    if not cell_contents:
+        for row in old_rows:
+            if dpg.does_item_exist(row):
+                dpg.delete_item(row)
+        _set_table_column_count(table, columns)
+        return
+
+    if columns > len(_table_columns(table)):
+        _set_table_column_count(table, columns)
+
+    new_rows: list[Tag] = []
+    for index, contents in enumerate(cell_contents):
+        if index % columns == 0:
+            new_rows.append(dpg.add_table_row(parent=table, height=row_height))
+        cell = dpg.add_table_cell(parent=new_rows[-1])
+        for child in contents:
+            if dpg.does_item_exist(child):
+                dpg.move_item(child, parent=cell)
+
+    for row in old_rows:
+        if dpg.does_item_exist(row):
+            dpg.delete_item(row)
+
+    if columns < len(_table_columns(table)):
+        _set_table_column_count(table, columns)
+
+
+def _table_columns(table: Tag) -> list[Tag]:
+    children = cast(dict[int, list[Tag]], dpg.get_item_children(table) or {})
+    return list(children.get(0, []))
+
+
+def _table_rows(table: Tag) -> list[Tag]:
+    children = cast(dict[int, list[Tag]], dpg.get_item_children(table) or {})
+    return list(children.get(1, []))
+
+
+def _table_cell_contents(table: Tag) -> list[list[Tag]]:
+    cells: list[list[Tag]] = []
+    for row in _table_rows(table):
+        row_children = cast(dict[int, list[Tag]], dpg.get_item_children(row) or {})
+        for cell in row_children.get(1, []):
+            cell_children = cast(dict[int, list[Tag]], dpg.get_item_children(cell) or {})
+            contents = [child for child in cell_children.get(1, []) if dpg.does_item_exist(child)]
+            if contents:
+                cells.append(contents)
+    return cells
+
+
+def _first_empty_table_cell(table: Tag) -> Tag | None:
+    for row in _table_rows(table):
+        row_children = cast(dict[int, list[Tag]], dpg.get_item_children(row) or {})
+        for cell in row_children.get(1, []):
+            cell_children = cast(dict[int, list[Tag]], dpg.get_item_children(cell) or {})
+            if not any(dpg.does_item_exist(child) for child in cell_children.get(1, [])):
+                return cell
+    return None
+
+
+def _table_cell_count(table: Tag) -> int:
+    count = 0
+    for row in _table_rows(table):
+        row_children = cast(dict[int, list[Tag]], dpg.get_item_children(row) or {})
+        count += len(row_children.get(1, []))
+    return count
+
+
+def _last_row_state(table: Tag, columns: int) -> tuple[Tag | None, int]:
+    rows = _table_rows(table)
+    if not rows:
+        return None, 0
+    row = rows[-1]
+    row_children = cast(dict[int, list[Tag]], dpg.get_item_children(row) or {})
+    return row, min(len(row_children.get(1, [])), columns)
+
+
+def _cleanup_grid_after_item_delete(parent: Tag) -> None:
+    if not _dpg_context_active or not dpg.does_item_exist(parent):
+        return
+    row = dpg.get_item_parent(parent)
+    if row is None or not dpg.does_item_exist(row):
+        return
+    table = dpg.get_item_parent(row)
+    if table is None or table not in _grid_layouts or not dpg.does_item_exist(table):
+        return
+    _pending_grid_cleanups.add(table)
+    _schedule_grid_refresh()
+
+
+def _compact_grid(grid: GridLayoutContext) -> None:
+    table = grid.tag
+    if table is None or not dpg.does_item_exist(table):
+        return
+    _reflow_table_cells(table, grid.columns, grid.row_height)
+    grid._next_index = _table_cell_count(table)
+    grid._current_row, grid._current_row_cells = _last_row_state(table, grid.columns)
+
+
+def _cleanup_grid_now(table: Tag) -> None:
+    if table not in _grid_layouts or not dpg.does_item_exist(table):
+        return
+    grid = _grid_layouts[table]
+    _compact_grid(grid)
+
+
+def _schedule_grid_refresh() -> None:
+    global _grid_refresh_scheduled
+    if _grid_refresh_scheduled or not _dpg_context_active:
+        return
+    try:
+        dpg.set_frame_callback(dpg.get_frame_count() + 1, _refresh_grid_layouts)
+    except Exception:
+        return
+    _grid_refresh_scheduled = True
+
+
+def _refresh_grid_layouts() -> None:
+    global _grid_refresh_scheduled
+    _grid_refresh_scheduled = False
+    if not _dpg_context_active:
+        return
+    for tag, grid in list(_grid_layouts.items()):
+        if tag is None or not dpg.does_item_exist(tag):
+            del _grid_layouts[tag]
+            _pending_grid_cleanups.discard(tag)
+            continue
+        if tag in _pending_grid_cleanups:
+            _pending_grid_cleanups.discard(tag)
+            _compact_grid(grid)
+        grid.refresh_columns()
+    if _grid_layouts:
+        _schedule_grid_refresh()
+
+
+def _resolved_columns(
+    columns: int | Literal["auto"], min_column_width: int, available_width: int
+) -> int:
+    min_column_width = max(int(min_column_width), 0)
+    if columns == "auto":
+        if available_width > 0 and min_column_width > 0:
+            return max(1, available_width // min_column_width)
+        return 1
+    columns = max(int(columns), 1)
+    if available_width > 0 and min_column_width > 0:
+        columns = min(columns, max(1, available_width // min_column_width))
+    return columns
+
+
 def gauge_panel(
     *,
     tag: Tag | None = None,
+    parent: Tag | None = None,
     label: str | None = None,
     width: int = 0,
     height: int = 0,
@@ -166,8 +510,14 @@ def gauge_panel(
     """Create a lightweight child-window container for related gauges."""
     if not _dpg_context_active:
         return LayoutContext(None)
+    layout_parent, layout_width, _layout_grid = _next_layout_cell(parent)
+    if layout_parent is not None:
+        parent = layout_parent
+        if width <= 0 and layout_width is not None:
+            width = layout_width
     container = dpg.add_child_window(
         tag=tag or 0,
+        parent=parent or 0,
         label=label or "",
         width=width,
         height=height,
@@ -183,31 +533,73 @@ def gauge_panel(
 
 def gauge_grid(
     *,
-    columns: int = 1,
+    columns: int | Literal["auto"] = 1,
+    min_column_width: int = 180,
+    fit_gauges: bool = True,
+    cell_padding: int = 12,
+    row_height: int = 0,
     tag: Tag | None = None,
+    parent: Tag | None = None,
     width: int = 0,
     height: int = 0,
     show: bool = True,
     **config: Any,
-) -> LayoutContext:
-    """Create a lightweight horizontal gauge layout container."""
+) -> GridLayoutContext:
+    """Create a lightweight wrapping gauge layout container."""
     if not _dpg_context_active:
-        return LayoutContext(None)
-    columns = max(int(columns), 1)
-    container = dpg.add_group(
+        return GridLayoutContext(
+            tag=None,
+            parent=None,
+            width=width,
+            requested_columns=columns,
+            columns=1,
+            min_column_width=min_column_width,
+            fit_gauges=fit_gauges,
+            cell_padding=cell_padding,
+        )
+    layout_parent, layout_width, _layout_grid = _next_layout_cell(parent)
+    if layout_parent is not None:
+        parent = layout_parent
+        if width <= 0 and layout_width is not None:
+            width = layout_width
+    available_width = _available_layout_width(parent, width)
+    requested_columns = columns
+    resolved_columns = _resolved_columns(columns, min_column_width, available_width)
+    container = dpg.add_table(
         tag=tag or 0,
+        parent=parent or 0,
         width=width,
         height=height,
         show=show,
-        horizontal=columns > 1,
+        header_row=False,
+        policy=dpg.mvTable_SizingStretchSame,
+        scrollX=False,
         **config,
     )
-    return LayoutContext(container)
+    for _ in range(resolved_columns):
+        dpg.add_table_column(parent=container, width_stretch=True, init_width_or_weight=1.0)
+    resolved_parent = cast(Tag | None, dpg.get_item_parent(container))
+    context = GridLayoutContext(
+        tag=container,
+        parent=resolved_parent,
+        width=width,
+        requested_columns=requested_columns,
+        columns=resolved_columns,
+        min_column_width=min_column_width,
+        fit_gauges=fit_gauges,
+        cell_padding=cell_padding,
+        row_height=row_height,
+        available_width=available_width,
+    )
+    _grid_layouts[container] = context
+    _schedule_grid_refresh()
+    return context
 
 
 def analog_gauge(
     *,
     tag: Tag | None = None,
+    parent: Tag | None = None,
     label: str | None = None,
     value: GaugeValue = None,
     min_value: float = 0.0,
@@ -253,6 +645,7 @@ def analog_gauge(
 def digital_gauge(
     *,
     tag: Tag | None = None,
+    parent: Tag | None = None,
     label: str | None = None,
     value: GaugeValue = None,
     min_value: float = 0.0,
@@ -287,6 +680,7 @@ def digital_gauge(
 def bar_gauge(
     *,
     tag: Tag | None = None,
+    parent: Tag | None = None,
     label: str | None = None,
     value: GaugeValue = None,
     min_value: float = 0.0,
@@ -326,6 +720,7 @@ def bar_gauge(
 def level_gauge(
     *,
     tag: Tag | None = None,
+    parent: Tag | None = None,
     label: str | None = None,
     value: GaugeValue = None,
     min_value: float = 0.0,
@@ -365,6 +760,7 @@ def level_gauge(
 def status_light(
     *,
     tag: Tag | None = None,
+    parent: Tag | None = None,
     label: str | None = None,
     value: GaugeValue = None,
     min_value: float = 0.0,
@@ -403,6 +799,7 @@ def status_light(
 def segmented_gauge(
     *,
     tag: Tag | None = None,
+    parent: Tag | None = None,
     label: str | None = None,
     value: GaugeValue = None,
     min_value: float = 0.0,
@@ -443,6 +840,7 @@ def segmented_gauge(
 def compass_gauge(
     *,
     tag: Tag | None = None,
+    parent: Tag | None = None,
     label: str | None = None,
     value: GaugeValue = None,
     min_value: float = 0.0,
@@ -488,6 +886,7 @@ def compass_gauge(
 def thermometer_gauge(
     *,
     tag: Tag | None = None,
+    parent: Tag | None = None,
     label: str | None = None,
     value: GaugeValue = None,
     min_value: float = 0.0,
@@ -529,6 +928,7 @@ def thermometer_gauge(
 def battery_gauge(
     *,
     tag: Tag | None = None,
+    parent: Tag | None = None,
     label: str | None = None,
     value: GaugeValue = None,
     min_value: float = 0.0,
@@ -569,6 +969,7 @@ def battery_gauge(
 def multi_value_gauge(
     *,
     tag: Tag | None = None,
+    parent: Tag | None = None,
     label: str | None = None,
     value: GaugeValue = None,
     min_value: float = 0.0,

tests/test_step3_widget_renderer.py

@@ -1,6 +1,7 @@
 # pyright: reportGeneralTypeIssues=false
 
 from collections.abc import Generator
+from typing import cast
 
 import dearpygui.dearpygui as dpg
 import pytest
@@ -9,6 +10,21 @@ import dpg_gauges as dpgg
 from dpg_gauges.state import clear_registry, get_gauge_state
 
 
+def _children(item: int | str) -> dict[int, list[int | str]]:
+    return cast(dict[int, list[int | str]], dpg.get_item_children(item))
+
+
+def _occupied_cell_counts(table: int | str) -> list[int]:
+    counts: list[int] = []
+    for row in _children(table)[1]:
+        occupied = 0
+        for cell in _children(row)[1]:
+            if any(dpg.does_item_exist(child) for child in _children(cell)[1]):
+                occupied += 1
+        counts.append(occupied)
+    return counts
+
+
 @pytest.fixture
 def dpg_context() -> Generator[None]:
     clear_registry()
@@ -76,3 +92,175 @@ def test_panel_and_grid_are_lightweight_containers(dpg_context: None) -> None:
     assert dpg.does_item_exist("engine")
     assert dpg.does_item_exist("engine_grid")
     assert get_gauge_state("temp").renderer is not None
+
+
+def test_grid_columns_wrap_gauges_into_rows(dpg_context: None) -> None:
+    with dpg.window(label="Dashboard", width=720), dpgg.gauge_grid(
+        tag="wrap_grid", columns=3, min_column_width=1
+    ):
+        for index in range(5):
+            dpgg.digital_gauge(tag=f"metric_{index}", value=index, height=60)
+
+    children = _children("wrap_grid")
+    assert len(children[0]) == 3
+    assert len(children[1]) == 2
+    assert [len(_children(row)[1]) for row in children[1]] == [3, 2]
+
+
+def test_grid_auto_reduces_columns_to_parent_width(dpg_context: None) -> None:
+    with dpg.window(label="Narrow", width=380), dpgg.gauge_grid(
+        tag="narrow_grid", columns=3, min_column_width=180
+    ):
+        for index in range(5):
+            dpgg.digital_gauge(tag=f"narrow_metric_{index}", value=index, height=60)
+
+    children = _children("narrow_grid")
+    assert len(children[0]) == 2
+    assert len(children[1]) == 3
+    assert [len(_children(row)[1]) for row in children[1]] == [2, 2, 1]
+    assert 0 < get_gauge_state("narrow_metric_0").config.width < 190
+
+
+def test_grid_auto_columns_uses_available_width(dpg_context: None) -> None:
+    with dpg.window(label="Auto", width=640), dpgg.gauge_grid(
+        tag="auto_grid", columns="auto", min_column_width=180
+    ):
+        for index in range(7):
+            dpgg.digital_gauge(tag=f"auto_metric_{index}", value=index, height=60)
+
+    children = _children("auto_grid")
+    assert len(children[0]) == 3
+    assert len(children[1]) == 3
+    assert [len(_children(row)[1]) for row in children[1]] == [3, 3, 1]
+
+
+def test_grid_routes_panels_without_stealing_panel_children(dpg_context: None) -> None:
+    with dpg.window(label="Nested", width=520), dpgg.gauge_grid(tag="nested_grid", columns=2):
+        with dpgg.gauge_panel(tag="nested_panel", height=120):
+            dpgg.digital_gauge(tag="inside_panel", value=1, height=60)
+        dpgg.digital_gauge(tag="beside_panel", value=2, height=60)
+
+    panel_cell = cast(int | str, dpg.get_item_parent("nested_panel"))
+    assert dpg.get_item_type(panel_cell) == "mvAppItemType::mvTableCell"
+    assert dpg.get_item_parent("inside_panel") == "nested_panel"
+    beside_cell = cast(int | str, dpg.get_item_parent("beside_panel"))
+    assert dpg.get_item_type(beside_cell) == "mvAppItemType::mvTableCell"
+
+
+def test_grid_accepts_gauges_added_after_context(dpg_context: None) -> None:
+    with dpg.window(label="Late", width=520), dpgg.gauge_grid(tag="late_grid", columns=2):
+        dpgg.digital_gauge(tag="late_initial", value=1, height=60)
+
+    dpgg.digital_gauge(tag="late_second", parent="late_grid", value=2, height=60)
+    dpgg.digital_gauge(tag="late_third", parent="late_grid", value=3, height=60)
+
+    children = _children("late_grid")
+    assert [len(_children(row)[1]) for row in children[1]] == [2, 1]
+
+    for tag in ("late_initial", "late_second", "late_third"):
+        cell = cast(int | str, dpg.get_item_parent(tag))
+        assert dpg.get_item_type(cell) == "mvAppItemType::mvTableCell"
+
+
+def test_auto_grid_in_autosize_panel_wraps_late_gauges(dpg_context: None) -> None:
+    with (
+        dpg.window(label="Autosize", width=1200),
+        dpgg.gauge_panel(
+            tag="autosize_panel", width=1000, height=600, autosize_x=True, autosize_y=True
+        ),
+    ):
+        dpgg.gauge_grid(tag="autosize_grid", columns="auto", min_column_width=180)
+
+    for index in range(7):
+        dpgg.digital_gauge(
+            tag=f"autosize_metric_{index}", parent="autosize_grid", value=index, height=60
+        )
+
+    children = _children("autosize_grid")
+    assert len(children[0]) == 5
+    assert [len(_children(row)[1]) for row in children[1]] == [5, 2]
+    assert 0 < get_gauge_state("autosize_metric_0").config.width < 200
+
+
+def test_auto_grid_refreshes_when_autosize_width_becomes_known(dpg_context: None) -> None:
+    with (
+        dpg.window(label="Autosize"),
+        dpgg.gauge_panel(tag="late_width_panel", autosize_x=True, autosize_y=True),
+    ):
+        grid = dpgg.gauge_grid(tag="late_width_grid", columns="auto", min_column_width=180)
+
+    assert grid.columns == 1
+
+    dpg.configure_item("late_width_panel", width=1000)
+    for index in range(6):
+        dpgg.digital_gauge(tag=f"late_width_metric_{index}", parent="late_width_grid", value=index)
+
+    children = _children("late_width_grid")
+    assert len(children[0]) == 5
+    assert [len(_children(row)[1]) for row in children[1]] == [5, 1]
+
+
+def test_auto_grid_reflows_existing_gauges_when_panel_narrows(dpg_context: None) -> None:
+    with dpg.window(label="Resize"), dpgg.gauge_panel(
+        tag="resize_panel", width=1000, height=300
+    ):
+        grid = dpgg.gauge_grid(tag="resize_grid", columns="auto", min_column_width=180)
+        with grid:
+            for index in range(6):
+                dpgg.digital_gauge(tag=f"resize_metric_{index}", value=index, height=60)
+
+    assert grid.columns == 5
+    children = _children("resize_grid")
+    assert [len(_children(row)[1]) for row in children[1]] == [5, 1]
+
+    dpg.configure_item("resize_panel", width=430)
+    grid.refresh_columns()
+
+    assert grid.columns == 2
+    children = _children("resize_grid")
+    assert len(children[0]) == 2
+    assert [len(_children(row)[1]) for row in children[1]] == [2, 2, 2]
+    for index in range(6):
+        cell = cast(int | str, dpg.get_item_parent(f"resize_metric_{index}"))
+        assert dpg.get_item_type(cell) == "mvAppItemType::mvTableCell"
+
+
+def test_grid_compacts_after_runtime_gauge_delete(dpg_context: None) -> None:
+    from dpg_gauges.widget import _cleanup_grid_now
+
+    with dpg.window(label="Reconnect", width=800):
+        dpgg.gauge_grid(tag="connector_grid", columns=3, min_column_width=1)
+
+    for cycle in range(3):
+        tags = [f"connector_{cycle}_{index}" for index in range(3)]
+        for index, tag in enumerate(tags):
+            dpgg.digital_gauge(tag=tag, parent="connector_grid", value=index, height=60)
+
+        children = _children("connector_grid")
+        assert [len(_children(row)[1]) for row in children[1]] == [3]
+        assert _occupied_cell_counts("connector_grid") == [3]
+
+        for tag in tags:
+            dpgg.delete_gauge(tag)
+
+    _cleanup_grid_now("connector_grid")
+    children = _children("connector_grid")
+    assert children[1] == []
+
+
+def test_grid_reuses_deleted_cell_before_appending(dpg_context: None) -> None:
+    with dpg.window(label="Partial", width=800):
+        dpgg.gauge_grid(tag="partial_grid", columns=3, min_column_width=1)
+
+    for index in range(3):
+        dpgg.digital_gauge(tag=f"partial_{index}", parent="partial_grid", value=index, height=60)
+
+    dpgg.delete_gauge("partial_1")
+
+    assert _occupied_cell_counts("partial_grid") == [2]
+
+    dpgg.digital_gauge(tag="partial_new", parent="partial_grid", value=99, height=60)
+
+    children = _children("partial_grid")
+    assert [len(_children(row)[1]) for row in children[1]] == [3]
+    assert _occupied_cell_counts("partial_grid") == [3]

tests/test_step7_hardening.py

@@ -1,6 +1,7 @@
 # pyright: reportGeneralTypeIssues=false
 
 from collections.abc import Generator
+from importlib.resources import files
 
 import dearpygui.dearpygui as dpg
 import pytest
@@ -30,11 +31,22 @@ def dpg_context() -> Generator[None]:
 
 
 def test_public_exports_and_version() -> None:
-    assert dpgg.__version__ == "1.0.0"
+    assert dpgg.__version__ == "1.1.2"
+    assert files("dpg_gauges").joinpath("py.typed").is_file()
     for name in dpgg.__all__:
         assert hasattr(dpgg, name)
 
 
+def test_gauge_creation_supports_explicit_parent(dpg_context: None) -> None:
+    dpg.add_window(tag="late_parent", label="Late Parent")
+
+    dpgg.analog_gauge(tag="late_gauge", parent="late_parent", width=180, height=180)
+
+    state = get_gauge_state("late_gauge")
+    assert state.config.parent == "late_parent"
+    assert dpg.get_item_parent(state.container_tag) == "late_parent"
+
+
 def test_unknown_duplicate_and_deleted_gauge_errors() -> None:
     with pytest.raises(GaugeNotFoundError):
         dpgg.set_value("missing", 1)

uv.lock

@@ -36,7 +36,7 @@ wheels = [
 
 [[package]]
 name = "dpg-gauges"
-version = "1.0.0"
+version = "1.1.2"
 source = { editable = "." }
 dependencies = [
     { name = "dearpygui" },