TRSCircularFuelGauge Class

BACKFACE_BEVEL_LOWER_ID

Represents constant BACKFACE_BEVEL_LOWER_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

BACKFACE_BEVEL_UPPER_ID

Represents constant BACKFACE_BEVEL_UPPER_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

BACKFACE_GROUP_ID

Represents constant BACKFACE_GROUP_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

BACKFACE_ID

Represents constant BACKFACE_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

BIG_HAND_ID

Represents constant BIG_HAND_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

BOLTS_ID

Represents constant BOLTS_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

BOLT_FRAME_ID

Represents constant BOLT_FRAME_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

BOLT_HIGHLIGHT_ID

Represents constant BOLT_HIGHLIGHT_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

BOLT_ID

Represents constant BOLT_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

BOLT_SHADOW_ID

Represents constant BOLT_SHADOW_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

CCWARROW_MAJOR_MARKER

Represents constant CCWARROW_MAJOR_MARKER. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

CCWARROW_MINOR_MARKER

Represents constant CCWARROW_MINOR_MARKER. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

CIRCLE_MAJOR_MARKER

Represents constant CIRCLE_MAJOR_MARKER. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

CIRCLE_MINOR_MARKER

Represents constant CIRCLE_MINOR_MARKER. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

CWARROW_MAJOR_MARKER

Represents constant CWARROW_MAJOR_MARKER. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

CWARROW_MINOR_MARKER

Represents constant CWARROW_MINOR_MARKER. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DECORATION_GROUP_ID

Represents constant DECORATION_GROUP_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DECORATION_ID

Represents constant DECORATION_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DefaultFormatStr

Represents constant DefaultFormatStr. (Inherited from RS.Impact.Instruments.TRSSVGCustomInstrument.)

DEFAULT_CLOCK_TEXT

Represents constant DEFAULT_CLOCK_TEXT. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DEFAULT_MAJOR_MARKER

Represents constant DEFAULT_MAJOR_MARKER. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DEFAULT_MINOR_MARKER

Represents constant DEFAULT_MINOR_MARKER. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DETAILLABEL_ID

Represents constant DETAILLABEL_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DIAL_ID

Represents constant DIAL_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DIAL_LIGHT_ID

Represents constant DIAL_LIGHT_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DIAMOND_MAJOR_MARKER

Represents constant DIAMOND_MAJOR_MARKER. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DIAMOND_MINOR_MARKER

Represents constant DIAMOND_MINOR_MARKER. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

FRAME_BEVEL_LOWER_ID

Represents constant FRAME_BEVEL_LOWER_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

FRAME_BEVEL_UPPER_ID

Represents constant FRAME_BEVEL_UPPER_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

FRAME_COLOR_ID

Represents constant FRAME_COLOR_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

FRAME_ID

Represents constant FRAME_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

FRAME_SHADOW_ID

Represents constant FRAME_SHADOW_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

GAUGELABELS_ID

Represents constant GAUGELABELS_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

GLASS_ID

Represents constant GLASS_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

GRADIENT_BACKFACE_BEVEL_LOWER_ID

Represents constant GRADIENT_BACKFACE_BEVEL_LOWER_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

GRADIENT_BACKFACE_BEVEL_UPPER_ID

Represents constant GRADIENT_BACKFACE_BEVEL_UPPER_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

GRADIENT_DARKEN_ID

Represents constant GRADIENT_DARKEN_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

GRADIENT_FRAME_BEVEL_LOWER_ID

Represents constant GRADIENT_FRAME_BEVEL_LOWER_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

GRADIENT_FRAME_BEVEL_UPPER_ID

Represents constant GRADIENT_FRAME_BEVEL_UPPER_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

GRADIENT_LIGHTEN_ID

Represents constant GRADIENT_LIGHTEN_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

HANDS_ID

Represents constant HANDS_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

INARROW_MAJOR_MARKER

Represents constant INARROW_MAJOR_MARKER. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

INARROW_MINOR_MARKER

Represents constant INARROW_MINOR_MARKER. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

KNOB_COLOR_ID

Represents constant KNOB_COLOR_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

KNOB_HIGHLIGHT_ID

Represents constant KNOB_HIGHLIGHT_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

KNOB_ID

Represents constant KNOB_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

LABELS_ID

Represents constant LABELS_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

LITTLE_HAND_ID

Represents constant LITTLE_HAND_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

MAINLABEL_ID

Represents constant MAINLABEL_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

MAJOR_MARKERS_ID

Represents constant MAJOR_MARKERS_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

MARKERS_AND_LABELS_ID

Represents constant MARKERS_AND_LABELS_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

MARKERS_ID

Represents constant MARKERS_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

MEASUREMENT_LABELS_ID

Represents constant MEASUREMENT_LABELS_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

MINOR_MARKERS_ID

Represents constant MINOR_MARKERS_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

OUTARROW_MAJOR_MARKER

Represents constant OUTARROW_MAJOR_MARKER. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

OUTARROW_MINOR_MARKER

Represents constant OUTARROW_MINOR_MARKER. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

ROTARY_KNOB_ID

Represents constant ROTARY_KNOB_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

SVG_RESOURCE_NAME

Represents constant SVG_RESOURCE_NAME. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

TEXT_CIRCLE_ID

Represents constant TEXT_CIRCLE_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

THIN_HAND_ID

Represents constant THIN_HAND_ID. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

Create(TComponent)

Initializes a new instance of the TRSCircularFuelGauge class. (Overrides RS.Impact.Instruments.TRSCustomCircularGauge.Create(TComponent).)

AbsoluteMatrix

Returns the combined transformation matrix for the control. This is the control's transformation matrix multiplied by all parent IRSGPControl control's transformation matrices. (Inherited from RSSVGControl.TRSSVGControl.)

ActiveSVGElement

Specifies the dynamic element in the SVG, the part that will be changing often. The ActiveSVGElement is not buffered when painting as it is assumed it will be changing. Set the ActiveSVGElement to tell the control which element or group of elements need to be redrawn every paint event.

The non-active svg elements are rendered either to the     Background or     Foreground Buffer.

Align

Represents property Align.

Anchors

Represents property Anchors.

AutoSize

Represents property AutoSize.

BackfaceColor

Represents property BackfaceColor.

Background

Contains the static background of the SVG compared to the   ActiveSVGElement, i.e. the SVG elements that are rendered behind the ActiveSVGElement. The Background and Foreground are painted once from the SVG. When elements in the ActiveSVGElement group change, the Background and Foreground are not rendered again, significantly speeding up painting of the entire SVG.

BigHandColor

Represents property BigHandColor.

BigHandID

Specifies the unique ID of the SVG element used for the big hand (minute hand on a clock or the switch on the rotary dial) (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

BoltColor

Represents property BoltColor.

Buffered

Represents property Buffered.

Caption

Represents property Caption.

CaptionFont

Represents property CaptionFont.

Constraints

Represents property Constraints.

Decoration

Represents property Decoration.

DecorationFillColor

Represents property DecorationFillColor.

DecorationID

Specifies the ID of the element in the SVG that contains the   Decoration for the instrument. (Inherited from RS.Impact.Instruments.TRSSVGCustomInstrument.)

DecorationPath

Represents property DecorationPath.

DecorationStrokeColor

Represents property DecorationStrokeColor.

DefaultCaption

Specifies the default   Caption property value for the gauge. If the Caption property does not equal this value, it will be stored when streaming out a form. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DefaultDetailText

Specifies the default   DetailText property value for the gauge. If the DetailText property does not equal this value, it will be stored when streaming out a form. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DefaultHands

Specifies the default Hands property value for the gauge. If the Hands property does not equal this value, it will be stored when streaming out a form. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DefaultMax

Defines the Default Maximum value. When you set the RS.Impact.Instruments.TRSCustomCircularGauge.Max value at design-time, and the Max value does not equal this value, it will be stored in the form. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DefaultMin

Defines the Default Minimum value. When you set the RS.Impact.Instruments.TRSCustomCircularGauge.Min value at design-time, and the Min value does not equal this value, it will be stored in the form. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DefaultValue

Defines the Default Value. When you set the   Value property at design-time, and the Value does not equal this default value, it will be stored in the form. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

Design

Represents property Design.

DetailText

Represents property DetailText.

DragCursor

Represents property DragCursor.

DragKind

Represents property DragKind.

DragMode

Represents property DragMode.

EnableActions

Controls whether the user can click on the gague to take some action (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

Enabled

Represents property Enabled.

EnableGradients

Represents property EnableGradients.

Font

Represents property Font.

Foreground

Contains the static foreground of the SVG compared to the   ActiveSVGElement, i.e. the SVG elements that are rendered in front of the ActiveSVGElement. The Background and Foreground are painted once from the SVG. When elements in the ActiveSVGElement group change, the Background and Foreground are not rendered again, significantly speeding up painting of the entire SVG.

FormatStr

Represents property FormatStr.

FrameColor

Represents property FrameColor.

Hands

Specifies which hands or needles to display for the gauge.

The big hand is the minute hand in clocks, the needle in a compass, the speed in speedometers, and the 1000-foot increments in an altimeter. It is also the switch in the rotary dial.

The little hand is the hour hand in clocks and the 10000-foot increments in an altimeter.

The long, thin hand is the second hand in clocks and the 100-foot increments in an altimeter.

Height

Represents property Height. (Inherited from RS.Impact.Instruments.TRSSVGCustomInstrument.)

KnobColor

Represents property KnobColor.

Labels

Represents property Labels.

LabelsFillColor

Represents property LabelsFillColor.

LabelsStrokeColor

Represents property LabelsStrokeColor.

LightColor

Represents property LightColor.

LittleHandColor

Specifies the color of the little hand in the gauge. Change this property to change the color of the little hand/needle.

MajorMarker

Represents property MajorMarker.

MajorMarkerPath

Represents property MajorMarkerPath.

MajorMarkers

Represents property MajorMarkers.

MajorMarkersColor

Represents property MajorMarkersColor.

Matrix

Returns the transformation matrix of the control (Inherited from RSSVGControl.TRSSVGControl.)

Max

Represents property Max.

Min

Represents property Min.

MinorMarker

Represents property MinorMarker.

MinorMarkerPath

Represents property MinorMarkerPath.

MinorMarkers

Represents property MinorMarkers.

MinorMarkersColor

Represents property MinorMarkersColor.

NeedBuffers

Controls whether the Background and Foreground need to be rendered again in the Buffered paint process. Set the NeedBuffers property to True to force the buffers to be redrawn at the next paint event. (Inherited from RSSVGControl.TRSSVGControl.)

OnChange

Represents property OnChange.

OnClick

Represents property OnClick.

OnContextPopup

Represents property OnContextPopup.

OnDblClick

Represents property OnDblClick.

OnDragDrop

Represents property OnDragDrop.

OnDragOver

Represents property OnDragOver.

OnDrawing

Represents property OnDrawing.

OnDrawn

Represents property OnDrawn.

OnEndDock

Represents property OnEndDock.

OnEndDrag

Represents property OnEndDrag.

OnGesture

Represents property OnGesture.

OnMouseActivate

Represents property OnMouseActivate.

OnMouseDown

Represents property OnMouseDown.

OnMouseEnter

Represents property OnMouseEnter.

OnMouseLeave

Represents property OnMouseLeave.

OnMouseMove

Represents property OnMouseMove.

OnMouseUp

Represents property OnMouseUp.

OnPaint

Represents property OnPaint.

OnPainting

Represents property OnPainting.

OnStartDock

Represents property OnStartDock.

OnStartDrag

Represents property OnStartDrag.

Opacity

Represents property Opacity.

ParentShowHint

Represents property ParentShowHint.

Parts

Represents property Parts.

PopupMenu

Represents property PopupMenu.

Quality

Represents property Quality.

ShadowColor

Returns the color to use for shadows in the instrument. This color is calculated from the RS.Impact.Instruments.TRSSVGCustomInstrument.LightColor property. (Inherited from RS.Impact.Instruments.TRSSVGCustomInstrument.)

ShowHint

Represents property ShowHint.

StartAngle

Represents property StartAngle.

StopAngle

Represents property StopAngle.

Stretch

Represents property Stretch.

SVG

Contains the SVG that paints the appearance of the control. The control changes the SVG elements based on requirements of the control. For example, a descendant control could change a specific element's fill and stroke based on a Color property change. (Inherited from RSSVGControl.TRSSVGControl.)

ThinHandColor

Specifies the color of the long, thin hand in the gauge. Change this property to change the color of the thin hand/needle.

Time

Specifies the current time and/or date of the clock (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

Touch

Represents property Touch.

Transform

Represents property Transform.

UpdateCount

Tracks the number of BeginUpdate calls with unmatching EndUpdate calls, i.e., if UpdateCount is greater than 0, the code is between BeginUpdate and EndUpdate and should not signal a change event. (Inherited from RS.Impact.Instruments.TRSSVGCustomInstrument.)

Value

Represents property Value.

Visible

Represents property Visible.

Width

Represents property Width. (Inherited from RS.Impact.Instruments.TRSSVGCustomInstrument.)

AfterConstruction

Represents method AfterConstruction. (Inherited from RS.Impact.Instruments.TRSSVGCustomInstrument.)

BeginUpdate

Prevents the updating of the instrument until the   EndUpdate method is called.
 
BeginUpdate prevents the screen from being repainted and OnChange events being triggered when instrument properties are changed. Use BeginUpdate to prevent screen repaints and to speed processing time while modifying the instrument.
 
Note: Calls to BeginUpdate are cumulative; for every call to BeginUpdate there must be a corresponding call to EndUpdate. (Inherited from RS.Impact.Instruments.TRSSVGCustomInstrument.)

ChangeGradientColor(TSVGCustomGradient,TSVGColor,Boolean)

Overloaded.  Attempts to modify a gradient color scheme to a similar color scheme using NewColor, i.e., if a gradient has 3 gradient stops of dark gray, gray, white and the NewColor is Red, the method will try to change the gradient to red, lighter red, and white.

The FromFirst parameter specifies if the first or the last gradient stop is the base color to replace. The base color is replaced with the NewColor unchanged. All other gradient stops are modified from the base color.

ChangeGradientColor(TSVGCustomGradient,TSVGColor,Integer)

Overloaded.  Attempts to modify a gradient color scheme to a similar color scheme using NewColor, i.e., if a gradient has 3 gradient stops of dark gray, gray, white and the NewColor is Red, the method will try to change the gradient to red, lighter red, and white.

The BaseColorIndex parameter specifies if which gradient stop is the base color to replace. The base color is replaced with the NewColor unchanged. All other gradient stops are modified from the base color.

DoEnableGradient(String,String,Boolean,TSVGColor,Boolean)

Helper method for changing a SVG element's color between a gradient or a solid color.

The IsEnabled parameter specifies whether to set the element to the gradient or the solid color.

The IsBrush parameter specifies whether to change the element's brush or pen properties.

DoEnableGradients(Boolean)

This method enables or disables gradients in the SVG for the instrument.

Descendant classes override this method to respond to     EnableGradients property changes.

DoInitializeGauge

Initializes the SVG gauge or instrument from the class properties, i.e., apply the properties to the SVG.

Descendant classes override this method to initialize the SVG that draws the gauge with their properties.

DoOnChange

Triggers the   OnChange event (Inherited from RS.Impact.Instruments.TRSSVGCustomInstrument.)

DoPaint

Represents method DoPaint. (Inherited from RSSVGControl.TRSSVGControl.)

DoUpdateCaptionFont

Updates the font for the RS.Impact.Instruments.TRSCustomCircularGauge.Caption and the RS.Impact.Instruments.TRSCustomCircularGauge.DetailText based on the RS.Impact.Instruments.TRSCustomCircularGauge.CaptionFont changes. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DoUpdateDesign

Updates the SVG design of the instrument to simple or detailed based on Design property.

Descendant classes override this method to modify the SVG in response to     Design property changes. Simple designs usually mean making some extra element's invisible.

DoUpdateElement(String,Single)

Updates the rotation angle for the SVG element specified by ElementID. This is the method that rotates the clock hands or the compass needle. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DoUpdateFont

Updates the font for the labels on the outside of the gauge based on RS.Impact.Instruments.TRSCustomCircularGauge.Font property changes. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

DoUpdateLight

Updates colors of SVG elements based on changes in the LightColor property.

Descendant classes can override this method to provide a color cast to the SVG based on     LightColor changes.

DoUpdateParts

Update the parts of the SVG based on changes to the Parts property.

Descendant classes override this method to show or hide different elements in the SVG based on Parts property changes.

EnabledChanged

This method is called when the Enabled property changes. The SVG colors are rendered in grayscale when the control is disabled. (Inherited from RSSVGControl.TRSSVGControl.)

EndUpdate

Re-enables screen repainting and change events that were turned off with the   BeginUpdate method.
 
Use the EndUpdate method to enable screen updating after BeginUpdate has been called. Calls to BeginUpdate are cumulative, so calling EndUpdate will only update the instrument if every other call to BeginUpdate has already been matched by a call to EndUpdate.
 
 (Inherited from RS.Impact.Instruments.TRSSVGCustomInstrument.)

FontChanged(TObject)

This method is called when the Font or CaptionFont is changed. This method calls the DoUpdateFont or DoUpdateCaptionFont method to update the correct elements of the gauge. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

GetAbsoluteMatrix

Returns the combined transformation matrix for the control. This is the control's transformation matrix multiplied by all parent IRSGPControl control's transformation matrices. (Inherited from RSSVGControl.TRSSVGControl.)

GetClosestMajorMarker(Single)

Returns the index of the closest major marker to the specified 0-360 degree angle. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

GetDefaultLabels

Returns the default multi-line string (separated by #13#10) for the outside labels of the gauge (Overrides RS.Impact.Instruments.TRSCustomCircularGauge.GetDefaultLabels.)

GetDrawRect

Returns the rectangle where the SVG should be drawn. This is dependent on the current stretch value, the control's width and height, and the SVG's width and height. (Inherited from RSSVGControl.TRSSVGControl.)

GetMarkerData(TMarker,Boolean)

Returns the path data that define the shape of major (IsSmall = False) or minor (IsSmall = True) markers (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

GetMatrix

Returns the transformation matrix of the control (Inherited from RSSVGControl.TRSSVGControl.)

GetOpacity

Returns the Opacity of the control (Inherited from RSSVGControl.TRSSVGControl.)

GetShapeRect(TObject,TRSRect)

Returns the rectangle for the control (Inherited from RSSVGControl.TRSSVGControl.)

GetSVGResourceName

Returns the name of the resource that contains the SVG. The class uses this name to load the embedded SVG from a resource. (Overrides RS.Impact.Instruments.TRSSVGCustomInstrument.GetSVGResourceName.)

InitializeGauge

Initializes the SVG gauge or instrument from the class properties, i.e., apply the properties to the SVG.

This method calls the     DoInitializeGauge method to actually initialize the SVG based on the class properties. It is recommended that descendant classes override that method to respond to initialization requests.

This method ensures that the buffers get updated and the control is repainted.

InitializeHands

Shows or hides the SVG elements that represent the Hands based on their presence in the   Hands property set. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

InitializeLabels

Initializes the text elements that represent the labels on the outside of the gauge. The text elements are initialized with values from the   Labels property. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

InitializeMarkerPaths

Initializes   MajorMarkerPath and   MinorMarkerPath properties based on the   MajorMarker and   MinorMarker enumerated values (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

InitializeMarkers

Creates the major and minor markers around the gauge based on the number of   MajorMarkers and the number of   MinorMarkers between them. The   StartAngle and   StopAngle properties control where the markers start and end on the circle. The shape of the markers depend on the   MajorMarkerPath and   MinorMarkerPath properties.

InitializeNumberLabels

Initializes the labels on the outside of the gauge with numbers based on the   Min and   Max properties and how many   MajorMarkers have been specified.

IsBuffered

Returns True if the instrument should be drawn to a offscreen bitmap (Inherited from RSSVGControl.TRSSVGControl.)

IsUpdating

Returns true if the instrument is being updated (Inherited from RS.Impact.Instruments.TRSSVGCustomInstrument.)

LabelsChanged(TObject)

This method is called when the RS.Impact.Instruments.TRSCustomCircularGauge.Labels property changes. This method responds to Labels changes by calling the RS.Impact.Instruments.TRSCustomCircularGauge.InitializeLabels method to update label elements in the gauge. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

LoadSVGProperties

Initializes local properties from the SVG. Descendant classes override this method to initialize their properties (such as FrameColor) from elements in the SVG. (Overrides RS.Impact.Instruments.TRSSVGCustomInstrument.LoadSVGProperties.)

LoadSVGResource(string)

Load the SVG from an embedded resource. This method initializes the   ActiveSVGElement property and should be used to initialize any control fields (such as colors) that are dependant on the values in the SVG. (Overrides RSSVGControl.TRSSVGControl.LoadSVGResource(String).)

MarkersChanged(TObject)

This method is called when the RS.Impact.Instruments.TRSCustomCircularGauge.MajorMarkerPath or RS.Impact.Instruments.TRSCustomCircularGauge.MinorMarkerPath property are changed and the underlying gauge elements need to be updated. The method calls the RS.Impact.Instruments.TRSCustomCircularGauge.InitializeMarkers method to update markers based on their new shape. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

ObjectChanged(TObject)

This method is called when an object property (such as Font) has changed and the control needs to respond to the change. (Inherited from RSSVGControl.TRSSVGControl.)

Resize

Represents method Resize. (Inherited from RSSVGControl.TRSSVGControl.)

RestoreGradientColor(TSVGCustomGradient)

Restores the gradient stop colors from the tags of the SVG elements, previously saved using   SaveGradientColor. (Inherited from RS.Impact.Instruments.TRSSVGCustomInstrument.)

SaveGradientColor(TSVGCustomGradient)

Stores gradient stop colors in the tags of the SVG elements. This allows restoring the gradient stop colors without reloading the svg (Inherited from RS.Impact.Instruments.TRSSVGCustomInstrument.)

SetOpacity(Single)

Sets the opacity of the control. If Opacity is less than 1, then the SVG is displayed semi- transparent. If Opacity is 0, then the SVG is not displayed.
 (Inherited from RSSVGControl.TRSSVGControl.)

UpdateBuffers

Updates the   Foreground and   Background buffers with the non active elements of the SVG. (Inherited from RSSVGControl.TRSSVGControl.)

UpdateDecoration

Updates the shape of the decoration (   DecorationPath) based on changes to the   Decoration property. (Overrides RS.Impact.Instruments.TRSSVGCustomInstrument.UpdateDecoration.)

UpdateDecorationFill

Updates the   Decoration fill color in the gauge (Inherited from RS.Impact.Instruments.TRSSVGCustomInstrument.)

UpdateDecorationStroke

Updates the   Decoration stroke color in the gauge (Inherited from RS.Impact.Instruments.TRSSVGCustomInstrument.)

UpdateDesign

Updates the design of the gauge based on the     Design property. Simpler designs hide elements in the SVG while detailed designs show all elements of the SVG.

This method calls the     DoUpdateDesign method to actually change the SVG based on the Design property. It is recommended that descendant classes override DoUpdateDesign method to respond to design changes.

This method ensures that the buffers get updated and the control is repainted.

UpdateGradients

This method enables or disables gradients in the SVG for the instrument based on     EnableGradients property changes.

This method calls the     DoEnableGradients method to actually enable/disable gradients in the SVG. It is recommended that descendant classes override that method to enable/disable the gradients.

This method ensures that the buffers get updated and the control is repainted.

UpdateHands

Updates the orientation of the   Hands based on the   Value property. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)

UpdateLight

Updates colors of SVG elements based on changes in the LightColor property.

Descendant classes can override this method to provide a color cast to the SVG based on     LightColor changes.

This method calls the     DoUpdateLight method to actually perform any color changes in the SVG. It is recommended that descendant classes override that method to do the actual changes.

This method ensures that the buffers get updated and the control is repainted.

UpdateNumbers

This method updates any text elements that display numbers in the gauge. This method is called when the     FormatStr property changes so that the class can respond to new formatting for numbers.

Descendant classes should override this method to update any text elements with numbers

UpdateParts

Update the parts of the SVG based on changes to the Parts property.

Descendant classes override this method to show or hide different elements in the SVG based on Parts property changes.

This method calls the     DoUpdateParts method to actually perform any changes to the SVG. It is recommended that descendant classes override that method to do the actual changes.

This method ensures that the buffers get updated and the control is repainted.

UpdateTime

Updates the orientation of the   Hands based on the   Time property. (Inherited from RS.Impact.Instruments.TRSCustomCircularGauge.)