OHOS::UIArcLabel

Overview

Related Modules:

Graphic

Description:

Defines functions related to an arc label.

Since:

1.0

Version:

1.0

Summary

Data Structures

Data Structure Name Description
ArcTextInfo Stores the attribute information about this arc text to draw.

Public Types

Public Type Name Description
TextOrientation : uint8_t { TextOrientation::INSIDE, TextOrientation::OUTSIDE } Enumerates text orientations.

Public Member Functions

Public Member Function Name Description
UIArcLabel () A default constructor used to create a UIArcLabel instance.
~UIArcLabel () virtual A destructor used to delete the UIArcLabel instance.
GetViewType () const override UIViewType Obtains the view type.
GetWidth () override int16_t Obtains the width of this arc text.
GetHeight () override int16_t Obtains the height of this arc text.
SetText (const char text) void Sets the text content for this arc label.
GetText () const const char Obtains the text of this arc label.
SetAlign (UITextLanguageAlignment horizontalAlign) void Sets the alignment mode for this text.
GetHorAlign () const UITextLanguageAlignment Obtains the horizontal alignment mode.
GetDirect () UITextLanguageDirect Obtains the direction of this text.
SetFontId (uint8_t fontId) void Sets the font ID for this arc label.
GetFontId () const uint8_t Obtains the font ID composed of font name and size.
SetFont (const char name, uint8_t size) void Sets the font for this arc label.
SetArcTextCenter (int16_t x, int16_t y) void Sets the center position for this arc text.
GetArcTextCenter () const Point Obtains the center position of this arc text.
SetArcTextRadius (uint16_t radius) void Sets the radius for this arc text.
GetArcTextRadius () const uint16_t Obtains the radius of this arc text.
SetArcTextAngle (int16_t startAngle, int16_t endAngle) void Sets the start angle and end angle for this arc text.
GetArcTextStartAngle () const int16_t Obtains the start angle of this arc text.
GetArcTextEndAngle () const int16_t Obtains the end angle of this arc text.
SetArcTextOrientation (TextOrientation orientation) void Sets the orientation for this arc text.
GetArcTextOrientation () const TextOrientation Obtains the orientation of this arc text.
OnDraw (const Rect &invalidatedArea) override virtual void Draws an arc text.
UIView () A default constructor used to create an UIView instance.
UIView (const char id) A constructor used to create an UIView instance.
~UIView () virtual A destructor used to delete the UIView instance.
OnPreDraw (const Rect &invalidatedArea) virtual bool Called before a view is drawn. This function is used to check whether the parent view of this view needs to be redrawn so as to optimize the drawing process.
OnPostDraw (const Rect &invalidatedArea) virtual void Called after a view is drawn.
Invalidate () void Refreshes the invalidated area of the view.
InvalidateRect (const Rect &invalidatedArea) void Refreshes a view in a specified invalidated area.
OnLongPressEvent (const LongPressEvent &event) virtual bool Called when the view is long pressed.
OnDragStartEvent (const DragEvent &event) virtual bool Called when the view starts to drag.
OnDragEvent (const DragEvent &event) virtual bool Called when the view is being dragged.
OnDragEndEvent (const DragEvent &event) virtual bool Called when the view stops dragging.
OnClickEvent (const ClickEvent &event) virtual void Called when the view is clicked.
OnPressEvent (const PressEvent &event) virtual void Called when the view is pressed.
OnReleaseEvent (const ReleaseEvent &event) virtual void Called when the view is released.
OnCancelEvent (const CancelEvent &event) virtual void Called when a click event on the view is canceled.
SetOnDragListener (OnDragListener onDragListener) void Sets a drag event listener for the view.
GetOnDragListener () OnDragListener & Obtains the drag event listener for the view.
SetOnClickListener (OnClickListener onClickListener) void Sets a click event listener for the view.
GetOnClickListener () OnClickListener & Obtains the click event listener for the view.
SetOnLongPressListener (OnLongPressListener onLongPressListener) void Sets a long-press event listener for the view.
GetOnLongPressListener () OnLongPressListener & Obtains the long-press event listener for the view.
SetOnTouchListener (OnTouchListener onTouchListener) void Sets a touch event listener for the view.
GetTouchListener () OnTouchListener & Obtains the touch event listener for the view.
GetTargetView (const Point &point, UIView *last) virtual void Obtains the top-level view based on specified coordinates.
SetParent (UIView parent) void Sets the parent view for the view.
GetParent () const UIView Obtains the parent view of the view.
SetNextSibling (UIView sibling) void Sets the next sibling view for the view.
GetNextSibling () const UIView Obtains the next sibling view of the view.
SetVisible (bool visible) virtual void Sets whether the view is visible.
IsVisible () const bool Checks whether the view is visible.
SetTouchable (bool touch) void Sets whether the view is touchable.
IsTouchable () const bool Checks whether the view is touchable.
SetDraggable (bool draggable) void Sets whether the view is draggable.
IsDraggable () const bool Checks whether the view is draggable.
SetDragParentInstead (bool dragParentInstead) void Sets whether to transfer the drag event to the parent view for processing when the view is being dragged.
IsDragParentInstead () const bool Obtains whether the view transfers a drag event to the parent view for processing.
GetRect () const Rect Obtains the absolute rectangle area of the view. When the view has deformation such as rotation, the rectangle area is the intersection set of the absolute rectangle area and deformation matrix.
GetVisibleRect () const Rect Obtains the visible absolute rectangle area of the view.
GetMaskedRect () const Rect Obtains the valid absolute rectangle area of the view. The valid area refers to the area where the view can be displayed. Generally, the valid area is the same as the visible view area, but they may be different in the grid layout.
GetOrigRect () const Rect Obtains the absolute rectangle area of the view.
GetContentRect () virtual Rect Obtains the content of the absolute rectangle area of the view. This area excludes padding.
GetRelativeRect () const Rect Obtains the rectangular area of the view relative to the parent view, that is, the rectangular area relative to the coordinates of the parent view.
ResizeVisibleArea (int16_t x, int16_t y, int16_t width, int16_t height) void Adjusts the size of the visible area. This operation may affect the final display size.
SetWidth (int16_t width) virtual void Sets the width for the view.
SetHeight (int16_t height) virtual void Sets the height for the view.
Resize (int16_t width, int16_t height) virtual void Adjusts the size of the view.
SetX (int16_t x) virtual void Sets the x-coordinate for the view.
GetX () const int16_t Obtains the x-coordinate for the view.
SetY (int16_t y) virtual void Sets the y-coordinate for the view.
GetY () const int16_t Obtains the y-coordinate for the view.
SetPosition (int16_t x, int16_t y) virtual void Sets the position for the view.
SetPosition (int16_t x, int16_t y, int16_t width, int16_t height) virtual void Adjusts the position and size of the view.
IsViewGroup () const bool Checks whether the view is a container view.
SetIntercept (bool isIntercept) void Sets whether to intercept the drag event. If intercepted, the view does not transfer the drag event to the parent view after local processing.
SetTransformMap (const TransformMap &transMap) void Sets the affine transformation matrix.
GetTransformMap () TransformMap & Obtains an affine transformation matrix.
GetChildById (const char id) const virtual UIView Obtains the child view of a specified ID.
SetViewId (const char id) void Sets the view ID.
GetViewId () const const char Obtains the view ID.
SetViewIndex (int16_t index) void Sets the view index.
GetViewIndex () const int16_t Obtains the view index.
LayoutChildren (bool neeInvalidate=false) virtual void Lays out all child views according to the preset arrangement mode.
LayoutCenterOfParent (int16_t xOffSet=0, int16_t yOffset=0) void Lays out the view in the center of the parent view.
LayoutLeftOfParent (int16_t offset=0) void Lays out the view on the left of the parent view.
LayoutRightOfParent (int16_t offset=0) void Lays out the view on the right of the parent view.
LayoutTopOfParent (int16_t offset=0) void Lays out the view on the top of the parent view.
LayoutBottomOfParent (int16_t offset=0) void Lays out the view on the bottom of the parent view.
AlignLeftToSibling (const char id, int16_t offset=0) void Aligns the view with the left of a sibling view.
AlignRightToSibling (const char id, int16_t offset=0) void Aligns the view with the right of a sibling view.
AlignTopToSibling (const char id, int16_t offset=0) void Aligns the view with the top of a sibling view.
AlignBottomToSibling (const char id, int16_t offset=0) void Aligns the view with the bottom of a sibling view.
AlignHorCenterToSibling (const char id, int16_t offset=0) void Aligns the view with the center of a sibling view in the x-axis.
AlignVerCenterToSibling (const char id, int16_t offset=0) void Aligns the view with the center of a sibling view in the y-axis.
LayoutLeftToSibling (const char id, int16_t offset=0) void Lays out the view on the left of a sibling view.
LayoutRightToSibling (const char id, int16_t offset=0) void Lays out the view on the right of a sibling view.
LayoutTopToSibling (const char id, int16_t offset=0) void Lays out the view on the above of a sibling view.
LayoutBottomToSibling (const char id, int16_t offset=0) void Lays out the view on the below of a sibling view.
SetStyle (Style &style) virtual void Sets the view style.
SetStyle (uint8_t key, int64_t value) virtual void Sets a style.
GetStyle (uint8_t key) const virtual int64_t Obtains the value of a style.
GetStyleConst () const const Style & Obtains the view style. This function applies to scenarios where the style does not need to be modified, which saves memory.
operator new (size_t size) void Overrides the new function.
operator delete (void *p) void Overrides the delete function.