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Gondwana Game Engine Development (master) - 2.6.1
Gondwana is a cross-platform 2.5D game and rendering engine written in C#/.NET 8. It provides fine-grained control over rendering, timing, and scene composition, with built-in support for parallax, z-ordering, pixel overhang, collision detection, and particle effects. Gondwana targets desktop and web platforms using SkiaSharp for graphics and pluggable audio backends for desktop and browser targets.
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Displays a lightweight view-level text tooltip near a screen position. More...
Public Member Functions | |
| TooltipWidget (RenderSurfaceHostBase renderSurfaceHost, View view, Size size, string? nickname=null) | |
| Creates a hidden view-level tooltip. | |
| TooltipWidget | ShowTooltip (string text, Point screenPositionPx) |
| Shows text near the supplied pointer position, clamped to the owning view. | |
| TooltipWidget | HideTooltip () |
| Hides the tooltip. | |
| TooltipWidget | SetTooltipZOrder (int zOrder) |
| Sets the drawing Z-order for the tooltip. | |
| Public Member Functions inherited from Gondwana.Widgets.WidgetBase | |
| virtual bool | HitTest (View view, Point screenPositionPx) |
| Determines whether the widget can be hit at the specified screen position within the specified view. | |
| virtual bool | HitTest (Point screenPositionPx) |
| Determines whether the widget can be hit at the specified screen position. | |
| WidgetBase | Show () |
| Shows the widget and registers it for input routing. | |
| WidgetBase | Hide () |
| Hides the widget and releases any routed input state. | |
| WidgetBase | Activate () |
| Activates the widget and brings it to the front of the input order. | |
| WidgetBase | Cancel () |
| Cancels the widget. | |
| Public Member Functions inherited from Gondwana.Drawing.Direct.DirectComposite | |
| DirectComposite (RenderSurfaceHostBase renderSurfaceHost, DirectDrawingMode mode, PointF anchor=default, string? nickname=null) | |
| Initializes a new instance of the DirectComposite class. | |
| Vector2 | GetPosition () |
| Gets the current composite anchor. | |
| void | SetPosition (Vector2 position) |
| Sets the composite anchor and repositions all children from their stored offsets. | |
| DirectComposite | SetPosition (float x, float y) |
| Sets the composite anchor and repositions all children from their stored offsets. | |
| virtual DirectComposite | Add (IDirectCompositeChild child, bool keepCurrentOffset=true, Vector2? explicitLocalOffsetPx=null) |
| Adds a composite-compatible direct drawable as a child. | |
| virtual DirectComposite | Remove (IDirectCompositeChild child) |
| Removes a child without disposing it. | |
| virtual DirectComposite | Clear () |
| Removes every child without disposing them. | |
| DirectComposite | SetLocalOffset (IDirectCompositeChild child, Vector2 newLocalOffsetPx) |
| Changes one child's local offset and reapplies its position. | |
| DirectComposite | SetZOrder (int zOrder) |
| Applies one Z-order to every descendant. | |
| DirectComposite | SetOpacity (float opacity) |
| Applies one opacity to every descendant. | |
| DirectComposite | SetIsVisible (bool visible) |
| Applies one visibility value to every descendant. | |
| DirectComposite | FadeTo (float targetOpacity, float durationSec) |
| Fades every descendant to the requested opacity. | |
| DirectComposite | FadeIn (float durationSec) |
| Fades every descendant to full opacity. | |
| DirectComposite | FadeOut (float durationSec) |
| Fades every descendant to zero opacity. | |
| RectangleF | GetDrawLocationScreen (View view) |
| Gets the union of all visible descendants as projected through a view. | |
| void | Draw (BackbufferBase backbuffer, RectangleF destRectScreen) |
| Performs no direct rendering because descendants render independently. | |
| virtual void | Update (long tick) |
| Advances composite movement. | |
| virtual void | Dispose () |
| Disposes the composite and every child it owns. | |
Properties | |
| DirectRectangle | Background [get] |
| Gets the tooltip background drawing. | |
| TextBlock | Label [get] |
| Gets the tooltip text drawing. | |
| Rectangle | Bounds [get] |
| Gets the current tooltip bounds in screen pixels. | |
| Size | Size [get, set] |
| Gets or sets the tooltip size in screen pixels. | |
| int | PointerOffsetPx [get, set] |
| Gets or sets the gap between the pointer and tooltip. | |
| Properties inherited from Gondwana.Widgets.WidgetBase | |
| bool | IsInputEnabled [get, set] |
| Gets or sets a value indicating whether the widget can participate in input routing. | |
| bool | IsPointerInputEnabled [get, set] |
| Gets or sets a value indicating whether the widget can receive pointer input. | |
| bool | IsKeyboardInputEnabled [get, set] |
| Gets or sets a value indicating whether the widget can receive keyboard input. | |
| bool | CanReceiveFocus [get, set] |
| Gets or sets a value indicating whether the widget can receive keyboard focus. | |
| bool | IsFocused [get, set] |
| Gets a value indicating whether the widget currently has keyboard focus. | |
| Properties inherited from Gondwana.Drawing.Direct.DirectComposite | |
| Guid | Id = Guid.NewGuid() [get] |
| Gets the unique identifier of the composite. | |
| string? | Nickname [get] |
| Gets the optional diagnostic nickname of the composite. | |
| RenderSurfaceHostBase | RenderSurfaceHost [get] |
| Gets the render surface host shared by the composite and its children. | |
| DirectDrawingMode | Mode [get] |
| Gets the coordinate mode shared by the composite and its children. | |
| SceneLayer? | SceneLayer [get] |
| Gets the scene layer shared by all children in scene-layer mode. | |
| View? | View [get] |
| Gets the view shared by all children in view mode. | |
| ReadOnlyCollection< IDirectCompositeChild > | Children [get] |
| Gets the children owned by the composite. | |
| MovementController | Movement [get] |
| Gets the movement controller used to move the composite anchor. | |
| MovementSpace | PositionSpace [get] |
| Gets the coordinate space used by the movement controller. | |
| bool | Visible [get, set] |
| Gets or sets the visibility of all descendants. | |
| int | ZOrder [get] |
| Gets the composite Z-order. | |
| Rectangle | ScreenBounds [get] |
| Gets the union of all visible descendants' screen-space bounds. | |
| Rectangle | WorldBounds [get] |
| Gets the union of all visible descendants' world-space bounds. | |
Additional Inherited Members | |
| Protected Member Functions inherited from Gondwana.Widgets.WidgetBase | |
| WidgetBase (RenderSurfaceHostBase renderSurfaceHost, DirectDrawingMode mode, PointF anchor=default, string? nickname=null) | |
| Initializes a new instance of the WidgetBase class. | |
| virtual void | ProcessShown () |
| Performs processing when the widget is shown before notification callbacks are invoked. | |
| virtual void | ProcessHidden () |
| Performs processing when the widget is hidden before notification callbacks are invoked. | |
| virtual void | ProcessActivated () |
| Performs processing when the widget is activated before notification callbacks are invoked. | |
| virtual void | ProcessCancelled () |
| Performs processing when the widget is cancelled before notification callbacks are invoked. | |
| virtual void | ProcessPointerEnter (WidgetPointerEventArgs args) |
| Performs processing when a pointer enters the widget before notification callbacks are invoked. | |
| virtual void | ProcessPointerLeave (WidgetPointerEventArgs args) |
| Performs processing when a pointer leaves the widget before notification callbacks are invoked. | |
| virtual void | ProcessPointerDown (WidgetPointerEventArgs args) |
| Performs processing when a pointer press begins on the widget before notification callbacks are invoked. | |
| virtual void | ProcessPointerMove (WidgetPointerEventArgs args) |
| Performs processing when pointer movement is routed to the widget before notification callbacks are invoked. | |
| virtual void | ProcessPointerUp (WidgetPointerEventArgs args) |
| Performs processing when a pointer press is released for the widget before notification callbacks are invoked. | |
| virtual void | ProcessFocusGained () |
| Performs processing when the widget gains focus before notification callbacks are invoked. | |
| virtual void | ProcessFocusLost () |
| Performs processing when the widget loses focus before notification callbacks are invoked. | |
| virtual void | ProcessKeyboardInput (WidgetKeyboardEventArgs args) |
| Performs processing when keyboard input is routed to the widget before notification callbacks are invoked. | |
| virtual bool | ShouldDispatchPointerClick (WidgetPointerEventArgs args) |
| Determines whether a pointer-click event should be dispatched for the specified pointer event data. | |
| virtual void | OnShown () |
| Called when the widget is shown. | |
| virtual void | OnHidden () |
| Called when the widget is hidden. | |
| virtual void | OnActivated () |
| Called when the widget is activated. | |
| virtual void | OnCancelled () |
| Called when the widget is cancelled. | |
| virtual void | OnPointerEnter (WidgetPointerEventArgs args) |
| Called when a pointer enters the widget bounds. | |
| virtual void | OnPointerLeave (WidgetPointerEventArgs args) |
| Called when a pointer leaves the widget bounds. | |
| virtual void | OnPointerDown (WidgetPointerEventArgs args) |
| Called when a pointer press begins on the widget. | |
| virtual void | OnPointerMove (WidgetPointerEventArgs args) |
| Called when pointer movement is routed to the widget. | |
| virtual void | OnPointerUp (WidgetPointerEventArgs args) |
| Called when a pointer press is released for the widget. | |
| virtual void | OnMouseWheel (WidgetMouseWheelEventArgs args) |
| Called when mouse-wheel input is routed to the widget. | |
| virtual void | OnPointerClick (WidgetPointerEventArgs args) |
| Called when a pointer click is dispatched to the widget. | |
| virtual void | OnFocusGained () |
| Called when the widget gains focus. | |
| virtual void | OnFocusLost () |
| Called when the widget loses focus. | |
| virtual void | OnKeyboardInput (WidgetKeyboardEventArgs args) |
| Called when keyboard input is routed to the widget. | |
| Protected Member Functions inherited from Gondwana.Drawing.Direct.DirectComposite | |
| virtual void | OnChildAdded (IDirectCompositeChild child) |
| Called after a child has been successfully added. | |
| virtual void | OnChildRemoved (IDirectCompositeChild child) |
| Called after a child has been removed from the composite. | |
| Events inherited from Gondwana.Widgets.WidgetBase | |
| Action? | Shown |
| Occurs when the widget is shown. | |
| Action? | Hidden |
| Occurs when the widget is hidden. | |
| Action? | Activated |
| Occurs when the widget is activated. | |
| Action? | Cancelled |
| Occurs when the widget is cancelled. | |
| Action< WidgetPointerEventArgs >? | PointerEnter |
| Occurs when a pointer enters the widget bounds. | |
| Action< WidgetPointerEventArgs >? | PointerLeave |
| Occurs when a pointer leaves the widget bounds. | |
| Action< WidgetPointerEventArgs >? | PointerDown |
| Occurs when a pointer button or touch press begins on the widget. | |
| Action< WidgetPointerEventArgs >? | PointerMove |
| Occurs when a pointer moves while routed to the widget. | |
| Action< WidgetPointerEventArgs >? | PointerUp |
| Occurs when a pointer button or touch press is released for the widget. | |
| Action< WidgetPointerEventArgs >? | PointerClick |
| Occurs when a pointer press and release completes as a click on the widget. | |
| Action< WidgetMouseWheelEventArgs >? | MouseWheel |
| Occurs when mouse-wheel input is routed to the widget while the pointer is over it. | |
| Action? | FocusGained |
| Occurs when the widget gains keyboard focus. | |
| Action? | FocusLost |
| Occurs when the widget loses keyboard focus. | |
| Action< WidgetKeyboardEventArgs >? | KeyboardInput |
| Occurs when keyboard input is routed to the widget. | |
| Events inherited from Gondwana.Drawing.Direct.DirectComposite | |
| EventHandler< IDirectDrawable >? | Disposing |
| Occurs when the composite is being disposed. | |
| Events inherited from Gondwana.Drawing.Direct.IDirectDrawable | |
| EventHandler< IDirectDrawable >? | Disposing |
| Occurs when the object is being disposed. | |
Displays a lightweight view-level text tooltip near a screen position.
Tooltips are non-interactive and therefore do not intercept pointer input from the widget or game content beneath them. ShowTooltip clamps the tooltip to the owning view and flips it to the opposite side of the pointer when needed.
Definition at line 18 of file TooltipWidget.cs.
| Gondwana.Widgets.Overlays.TooltipWidget.TooltipWidget | ( | RenderSurfaceHostBase | renderSurfaceHost, |
| View | view, | ||
| Size | size, | ||
| string? | nickname = null ) |
Creates a hidden view-level tooltip.
| renderSurfaceHost | The render surface host that owns the tooltip. |
| view | The view in which the tooltip is displayed. |
| size | The tooltip size in screen pixels. |
| nickname | An optional diagnostic nickname. |
Definition at line 31 of file TooltipWidget.cs.
| TooltipWidget Gondwana.Widgets.Overlays.TooltipWidget.HideTooltip | ( | ) |
| TooltipWidget Gondwana.Widgets.Overlays.TooltipWidget.SetTooltipZOrder | ( | int | zOrder | ) |
Sets the drawing Z-order for the tooltip.
| zOrder | Background Z-order. |
Definition at line 153 of file TooltipWidget.cs.
| TooltipWidget Gondwana.Widgets.Overlays.TooltipWidget.ShowTooltip | ( | string | text, |
| Point | screenPositionPx ) |
Shows text near the supplied pointer position, clamped to the owning view.
| text | Tooltip text. |
| screenPositionPx | Pointer position in screen pixels. |
Definition at line 127 of file TooltipWidget.cs.
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get |
Gets the tooltip background drawing.
Definition at line 81 of file TooltipWidget.cs.
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get |
Gets the current tooltip bounds in screen pixels.
Definition at line 87 of file TooltipWidget.cs.
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get |
Gets the tooltip text drawing.
Definition at line 84 of file TooltipWidget.cs.
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getset |
Gets or sets the gap between the pointer and tooltip.
Definition at line 113 of file TooltipWidget.cs.
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getset |
Gets or sets the tooltip size in screen pixels.
Definition at line 101 of file TooltipWidget.cs.