ImageColumn¶

Qualified name: delphifmx.ImageColumn

class ImageColumn¶

Bases: Column

Represents a column in a grid, whose cells show images.

Methods

`AbsoluteToLocal`	Converts the screen coordinates of a specified point on the screen to client coordinates.
`BringToFront`	Puts the control in front of all other controls in its parent control.
`CanFocus`	Indicates whether a control can receive focus.
`DefaultDrawCell`	Draws the default cell background.
`LocalToAbsolute`	Translates a given point from client area coordinates to global screen coordinates.
`PrepareForPaint`	Prepares the current control for painting.
`Repaint`	Forces the control to repaint its image on the screen.
`ResetFocus`	Removes the focus from a control of from any children of the control.
`SendToBack`	Puts a windowed control behind all other windowed controls, or puts a non-windowed control behind all other non-windowed controls.
`SetBounds`	Sets the Left, Top, Width, and Height properties all at once.
`SetFocus`	Gives the input focus to the control.

Attributes

`AbsoluteClipRect`	Specifies the absolute rectangle of the control after all its parent controls clip it.
`AbsoluteEnabled`	Specifies whether the control is absolutely enabled.
`AbsoluteHeight`	Specifies the absolute height of the control.
`AbsoluteMatrix`	Specifies the absolute transformation matrix of the control.
`AbsoluteOpacity`	Specifies the absolute opacity of the control.
`AbsoluteRect`	Specifies the absolute rectangle that bounds the control.
`AbsoluteScale`	Specifies the absolute scale of the control.
`AbsoluteWidth`	Specifies the absolute width of the control.
`Action`	Specifies the action associated with the control.
`ActionClient`	Specifies whether the component object has an associated action.
`Align`	Specifies the alignment options (top, left, client, and so on) of this control.
`Anchors`	Specifies how the control is anchored to its parent.
`ApplyingEffect`	A flag that signals when a control is in the process of applying an effect.
`AutoCapture`	Specifies whether the control captures mouse events.
`AxisAlignedRect`	A TRectF defined by the width and height of the control.
`BoundsRect`	Specifies the bounding rectangle of the control.
`CanParentFocus`	Specifies whether the parent of this control should be evaluated to receive focus.
`Canvas`	Provides the drawing surface of the control.
`Children`	Stores an array of children attached to this parent component.
`ChildrenCount`	Read-only property that specifies the number of children in the children list.
`ChildrenRect`	Specifies the bigger rectangle area occupied by parent and children controls.
`ClassName`	Returns the TObject.ClassName
`ClipChildren`	Specifies if children of the control should be clipped to the control's on-screen region.
`ClipParent`	Specifies whether the current control has clipped its parent.
`ClipRect`	Specifies the bound rectangle to be clipped.
`ComObject`	Specifies the interface reference implemented by the component.
`ComponentCount`	Returns the owned component count
`ComponentIndex`	Indicates the position of the component in its owner's Components property array.
`ComponentState`	Describes the current state of the component, indicating when a component needs to avoid certain actions.
`ComponentStyle`	Governs the behavior of the component.
`Components`	Returns an iterator over the owned components
`Controls`	Returns an iterator over contained controls
`ControlsCount`	Returns the count of contained controls
`Cursor`	Image to use to represent the mouse pointer when it passes into the region covered by the control.
`Data`	Stores a Tvalue, which is a data structure that can store different kinds of data types.
`DefaultSize`	Embarcadero Technologies does not currently have any additional information.
`DefaultTextSettings`	Default text settings.
`DesignInfo`	Contains information used by the Form designer.
`DisableDisappear`	Embarcadero Technologies does not currently have any additional information.
`DisableFocusEffect`	Specifies whether the control has the focus effect disabled.
`DragMode`	Specifies how the control initiates drag-and-drop operations.
`EditorState`	Specifies the current state of the cell editor.
`EffectiveVisible`	Indicates whether this column is visible (True) or not (False).
`EnableDragHighlight`	Specifies whether the control is highlighted when the dragged object is over it.
`Enabled`	Specifies whether the control responds to mouse, keyboard, and timer events.
`FixedSize`	Embarcadero Technologies does not currently have any additional information.
`HasAfterPaintEffect`	Specifies whether the control has an effect that is applied after the control is painted.
`HasClipParent`	Control that is a direct child of this control and has clipped this control.
`HasDisablePaintEffect`	Specifies whether the control's effect is painted.
`HasEffect`	Specifies whether the control has an applied effect.
`Header`	Specifies the string in the header cell of the column.
`HeaderSettings`	HeaderSettings:
`Height`	Height specifies the vertical size of the control (in dp).
`Hint`	Specifies the text string that appears when the user moves the mouse over a control.
`HitTest`	Enables the control to capture mouse events.
`HorzAlign`	Embarcadero Technologies does not currently have any additional information.
`HorzAlignModified`	Embarcadero Technologies does not currently have any additional information.
`InEditMode`	Determines what column is in edit mode.
`InPaintTo`	Specifies whether the control is currently being painted.
`Index`	Specifies the index of the child object in the children array attached to this object.
`InheritedCursor`	Image used to represent the mouse pointer when it passes into the region covered by the control.
`InvertAbsoluteMatrix`	Specifies the inverse matrix of AbsoluteMatrix.
`IsDragOver`	Specifies whether a dragged object is over the area of the current control.
`IsFocused`	Determines whether the control has input focus.
`IsInflated`	Whether the current style of this control has been actually applied to the control.
`IsMouseOver`	Specifies whether the mouse cursor is over the control.
`IsVisible`	Specifies whether the control is visible.
`Layout`	The current text layout that is used to draw text in cells.
`LocalRect`	Specifies the local rectangle for painting the control.
`Locked`	Specifies whether the control is locked at design time.
`Margins`	Aligns the component to the margins points of other components.
`Model`	The reference to the data model of the parent control.
`Name`	Specifies the name of the component as referenced in code.
`Observers`	Indicates the TObservers object added to the TComponent.
`OnGesture`	Callable[[Object, GestureEventInfo, bool], None]:
`Opacity`	Specifies the control opacity.
`OriginalIndex`	Embarcadero Technologies does not currently have any additional information.
`Owner`	Returns the Component Owner
`Padding`	The padding of any cells in this column
`Parent`	Returns/Sets the Control Visibility
`ParentControl`	Specifies the parent control of this control.
`ParentedRect`	Specifies the bounding rectangle of the control within its parent.
`ParentedVisible`	Specifies whether all the control's parents are visible.
`PopupMenu`	Specifies the context (pop-up) menu object.
`Position`	Returns an access to the position of the control inside its parent
`PresentedControl`	The reference to the control using this column and the data model.
`Pressed`	Indicates whether the control is currently pressed.
`PressedPosition`	A point that indicates where exactly on the control the click occured.
`PreviewSize`	Represents the maximum size of a thumbnail that can be displayed in cells of the column.
`ReadOnly`	Specifies whether the cells in this column can be edited or not.
`Root`	Specifies the root parent of this object.
`Scene`	Specifies the current scene in which the control is drawn.
`ShowHint`	Specifies whether the Hint can be shown.
`Size`	Specifies the vertical and horizontal size (Size.Height and Size.Width) of the control (in pixels).
`Stored`	Specifies whether this object is stored in the .XFM file.
`StyleName`	Specifies the style name for this FMX component.
`TabOrder`	Indicates the position of the control in its parent's tab order.
`TabStop`	Embarcadero Technologies does not currently have any additional information.
`Tag`	Stores a NativeInt integral value as a part of a component.
`TagFloat`	Custom property that stores any floating-point value.
`TagObject`	Custom property that stores any object value.
`TagString`	Custom property that stores any string value.
`Touch`	Specifies the touch manager component associated with the control.
`TouchTargetExpansion`	Set of optional pixel values you can specify to expand the touch target of a FireMonkey styled control.
`UpdateRect`	Specifies the rectangle area of the control that needs to be updated.
`VCLComObject`	Represents information used internally by components that support COM.
`Visible`	Returns/Sets the Control Visibility
`Width`	Specifies the horizontal size of the control (in pixels).

AbsoluteToLocal()¶: Converts the screen coordinates of a specified point on the screen to client coordinates.

BringToFront()¶: Puts the control in front of all other controls in its parent control.

CanFocus()¶: Indicates whether a control can receive focus.

Controls¶: Returns an iterator over contained controls

ControlsCount¶: Returns the count of contained controls

DefaultDrawCell(Canvas: Canvas, Bounds: RectF, Row: int, Value: Value, State: GridDrawStates) → None¶

Draws the default cell background. FMX.Grid.TImageColumn.DefaultDrawCell inherits from FMX.Grid.TColumn.DefaultDrawCell. All content below this line refers to FMX.Grid.TColumn.DefaultDrawCell. Draws the default cell background. DefaultDrawCell receives the following parameters:

Canvas is the canvas where DefaultDrawCell paints the cell background. Bounds indicates the cell boundaries. Row is the row number. Value is the cell value. State is the drawing state of the cell. DrawCell calls DefaultDrawCell if Model.DefaultDrawing is True.

See Also

FMX.Grid.TColumn.DrawCell FMX.Grid.TColumn.BeforeDrawing FMX.Grid.TColumn.AfterDrawing

IsFocused¶: Determines whether the control has input focus.

LocalToAbsolute()¶: Translates a given point from client area coordinates to global screen coordinates.

Position¶: Returns an access to the position of the control inside its parent

PrepareForPaint()¶: Prepares the current control for painting.

PreviewSize¶

Represents the maximum size of a thumbnail that can be displayed in cells of the column. To improve performance, large pictures are reduced to the specified PreviewSize size. The obtained thumbnail is stored in internal cache and is drawn during repainting.

Type:: Size

Repaint()¶: Forces the control to repaint its image on the screen.

ResetFocus()¶: Removes the focus from a control of from any children of the control.

SendToBack()¶: Puts a windowed control behind all other windowed controls, or puts a non-windowed control behind all other non-windowed controls.

SetBounds(Left, Top, Width, Height)¶: Sets the Left, Top, Width, and Height properties all at once.

SetFocus()¶: Gives the input focus to the control.

Visible¶: Returns/Sets the Control Visibility