Package com.smartgwt.client.widgets.drawing

Class DrawLine

java.lang.Object
com.google.gwt.user.client.ui.UIObject
com.google.gwt.user.client.ui.Widget
com.smartgwt.client.widgets.BaseWidget
com.smartgwt.client.widgets.drawing.DrawItem
com.smartgwt.client.widgets.drawing.DrawLine
All Implemented Interfaces:
HasAttachHandlers, HasHandlers, EventListener, HasVisibility, IsWidget, LogicalStructure, HasClickHandlers, HasDragMoveHandlers, HasDragResizeMoveHandlers, HasDragResizeStartHandlers, HasDragResizeStopHandlers, HasDragStartHandlers, HasDragStopHandlers, HasDrawEndHandlers, HasDrawStartHandlers, HasMouseDownHandlers, HasMouseMoveHandlers, HasMouseOutHandlers, HasMouseOverHandlers, HasMouseUpHandlers, HasMovedHandlers, HasResizedHandlers, HasShowContextMenuHandlers
public class DrawLine extends DrawItem
DrawItem subclass to render line segments.

  • Constructor Details

    • DrawLine

      public DrawLine()

    • DrawLine

      public DrawLine(JavaScriptObject jsObj)

  • Method Details

    • getOrCreateRef

      public static DrawLine getOrCreateRef(JavaScriptObject jsObj)

    • changeAutoChildDefaults

      public static void changeAutoChildDefaults(String autoChildName, Canvas defaults)
      Changes the defaults for Canvas AutoChildren named autoChildName.
      Parameters:
      autoChildName - name of an AutoChild to customize the defaults for.
      defaults - Canvas defaults to apply. These defaults override any existing properties without destroying or wiping out non-overridden properties. For usage tips on this param, see SGWTProperties.
      See Also:

    • changeAutoChildDefaults

      public static void changeAutoChildDefaults(String autoChildName, FormItem defaults)
      Changes the defaults for FormItem AutoChildren named autoChildName.
      Parameters:
      autoChildName - name of an AutoChild to customize the defaults for.
      defaults - FormItem defaults to apply. These defaults override any existing properties without destroying or wiping out non-overridden properties. For usage tips on this param, see SGWTProperties.
      See Also:

    • changeAutoChildDefaults

      public static void changeAutoChildDefaults(String autoChildName, DrawItem defaults)
      Changes the defaults for DrawItem AutoChildren named autoChildName.
      Parameters:
      autoChildName - name of an AutoChild to customize the defaults for.
      defaults - DrawItem defaults to apply. These defaults override any existing properties without destroying or wiping out non-overridden properties. For usage tips on this param, see SGWTProperties.
      See Also:

    • create

      protected JavaScriptObject create()
      Overrides:
      create in class DrawItem

    • setEndLeft

      public DrawLine setEndLeft(int endLeft) throws IllegalStateException
      Ending left coordinate of the line. Overrides left coordinate of endPoint if both are set.
      Parameters:
      endLeft - New endLeft value. Default value is 100
      Returns:
      DrawLine instance, for chaining setter calls
      Throws:
      IllegalStateException - this property cannot be changed after the component has been created

    • getEndLeft

      public int getEndLeft()
      Ending left coordinate of the line. Overrides left coordinate of endPoint if both are set.
      Returns:
      Current endLeft value. Default value is 100

    • getEndLeftAsDouble

      public double getEndLeftAsDouble()
      Ending left coordinate of the line. Overrides left coordinate of endPoint if both are set.
      Returns:
      Current endLeft value. Default value is 100

    • setEndPoint

      public DrawLine setEndPoint(Point endPoint)
      End point of the line

      If this method is called after the component has been drawn/initialized: Update the endPoint
      Parameters:
      endPoint - left coordinate for end point, in pixels. Default value is [100,100]
      Returns:
      DrawLine instance, for chaining setter calls

    • getEndPoint

      public Point getEndPoint()
      End point of the line
      Returns:
      Current endPoint value. Default value is [100,100]

    • setEndTop

      public DrawLine setEndTop(int endTop) throws IllegalStateException
      Ending top coordinate of the line. Overrides top coordinate of endPoint if both are set.
      Parameters:
      endTop - New endTop value. Default value is 100
      Returns:
      DrawLine instance, for chaining setter calls
      Throws:
      IllegalStateException - this property cannot be changed after the component has been created

    • getEndTop

      public int getEndTop()
      Ending top coordinate of the line. Overrides top coordinate of endPoint if both are set.
      Returns:
      Current endTop value. Default value is 100

    • getEndTopAsDouble

      public double getEndTopAsDouble()
      Ending top coordinate of the line. Overrides top coordinate of endPoint if both are set.
      Returns:
      Current endTop value. Default value is 100

    • setKnobs

      public DrawLine setKnobs(KnobType... knobs) throws IllegalStateException
      Array of control knobs to display for this item. Each KnobType specified in this will turn on UI element(s) allowing the user to manipulate this DrawLine. To update the set of knobs at runtime use DrawItem.showKnobs() and DrawItem.hideKnobs().

      DrawLine supports the KnobType.STARTPOINT, KnobType.ENDPOINT, and KnobType.MOVE knob types.

      Overrides:
      setKnobs in class DrawItem
      Parameters:
      knobs - New knobs value. Default value is null
      Returns:
      DrawLine instance, for chaining setter calls
      Throws:
      IllegalStateException - this property cannot be changed after the component has been created

    • getKnobs

      public KnobType[] getKnobs()
      Array of control knobs to display for this item. Each KnobType specified in this will turn on UI element(s) allowing the user to manipulate this DrawLine. To update the set of knobs at runtime use DrawItem.showKnobs() and DrawItem.hideKnobs().

      DrawLine supports the KnobType.STARTPOINT, KnobType.ENDPOINT, and KnobType.MOVE knob types.

      Overrides:
      getKnobs in class DrawItem
      Returns:
      Current knobs value. Default value is null

    • setShowTitleLabelBackground

      public DrawLine setShowTitleLabelBackground(boolean showTitleLabelBackground) throws IllegalStateException
      If the titleLabel is showing, should the titleLabelBackground be created and placed behind the titleLabel?

      This defaults to true for DrawSectors and shapes that are not commonly filled (e.g. DrawLines).

      Note : This is an advanced setting

      Overrides:
      setShowTitleLabelBackground in class DrawItem
      Parameters:
      showTitleLabelBackground - New showTitleLabelBackground value. Default value is true
      Returns:
      DrawLine instance, for chaining setter calls
      Throws:
      IllegalStateException - this property cannot be changed after the component has been created

    • getShowTitleLabelBackground

      public boolean getShowTitleLabelBackground()
      If the titleLabel is showing, should the titleLabelBackground be created and placed behind the titleLabel?

      This defaults to true for DrawSectors and shapes that are not commonly filled (e.g. DrawLines).

      Overrides:
      getShowTitleLabelBackground in class DrawItem
      Returns:
      Current showTitleLabelBackground value. Default value is true

    • setStartLeft

      public DrawLine setStartLeft(int startLeft) throws IllegalStateException
      Starting left coordinate of the line. Overrides left coordinate of startPoint if both are set.
      Parameters:
      startLeft - New startLeft value. Default value is 0
      Returns:
      DrawLine instance, for chaining setter calls
      Throws:
      IllegalStateException - this property cannot be changed after the component has been created

    • getStartLeft

      public int getStartLeft()
      Starting left coordinate of the line. Overrides left coordinate of startPoint if both are set.
      Returns:
      Current startLeft value. Default value is 0

    • getStartLeftAsDouble

      public double getStartLeftAsDouble()
      Starting left coordinate of the line. Overrides left coordinate of startPoint if both are set.
      Returns:
      Current startLeft value. Default value is 0

    • setStartPoint

      public DrawLine setStartPoint(Point startPoint)
      Start point of the line

      If this method is called after the component has been drawn/initialized: Update the startPoint
      Parameters:
      startPoint - left coordinate for start point, in pixels. Default value is [0,0]
      Returns:
      DrawLine instance, for chaining setter calls

    • getStartPoint

      public Point getStartPoint()
      Start point of the line
      Returns:
      Current startPoint value. Default value is [0,0]

    • setStartTop

      public DrawLine setStartTop(int startTop) throws IllegalStateException
      Starting top coordinate of the line. Overrides top coordinate of startPoint if both are set.
      Parameters:
      startTop - New startTop value. Default value is 0
      Returns:
      DrawLine instance, for chaining setter calls
      Throws:
      IllegalStateException - this property cannot be changed after the component has been created

    • getStartTop

      public int getStartTop()
      Starting top coordinate of the line. Overrides top coordinate of startPoint if both are set.
      Returns:
      Current startTop value. Default value is 0

    • getStartTopAsDouble

      public double getStartTopAsDouble()
      Starting top coordinate of the line. Overrides top coordinate of startPoint if both are set.
      Returns:
      Current startTop value. Default value is 0

    • setTitleRotationMode

      public DrawLine setTitleRotationMode(TitleRotationMode titleRotationMode) throws IllegalStateException
      The mode in which the titleLabel (if shown) is rotated with this draw item.

      Note : This is an advanced setting

      Overrides:
      setTitleRotationMode in class DrawItem
      Parameters:
      titleRotationMode - New titleRotationMode value. Default value is "withLineAlwaysUp"
      Returns:
      DrawLine instance, for chaining setter calls
      Throws:
      IllegalStateException - this property cannot be changed after the component has been created
      See Also:

    • getTitleRotationMode

      public TitleRotationMode getTitleRotationMode()
      The mode in which the titleLabel (if shown) is rotated with this draw item.
      Overrides:
      getTitleRotationMode in class DrawItem
      Returns:
      Current titleRotationMode value. Default value is "withLineAlwaysUp"
      See Also:

    • getCenter

      public Point getCenter()
      Get the midpoint of the line.
      Overrides:
      getCenter in class DrawItem
      Returns:
      the midpoint

    • isPointInPath

      public boolean isPointInPath(int x, int y)
      Returns true if the given point in the drawing coordinate system is within this DrawItem's shape, taking into account local transforms.
      Overrides:
      isPointInPath in class DrawItem
      Parameters:
      x - X coordinate of the test point.
      y - Y coordinate of the test point.
      Returns:

    • moveBy

      public void moveBy(int left, int top)
      Move both the start and end points of the line by a relative amount.
      Overrides:
      moveBy in class DrawItem
      Parameters:
      left - change to left coordinate in pixels
      top - change to top coordinate in pixels

    • moveStartPointTo

      public void moveStartPointTo(Integer left, Integer top)
      Move both the start and end points of the line such that the startPoint ends up at the specified coordinate and the line length and angle are unchanged.
      Parameters:
      left - new left coordinate in pixels
      top - new top coordinate in pixels

    • setDefaultProperties

      public static void setDefaultProperties(DrawLine drawLineProperties)
      Class level method to set the default properties of this class. If set, then all existing and subsequently created instances of this class will automatically have default properties corresponding to the properties set on the SmartGWT class instance passed to this function before its underlying SmartClient JS object was created. This is a powerful feature that eliminates the need for users to create a separate hierarchy of subclasses that only alter the default properties of this class. Can also be used for skinning / styling purposes.

      Note: This method is intended for setting default attributes only and will affect all instances of the underlying class (including those automatically generated in JavaScript). This method should not be used to apply standard EventHandlers or override methods for a class - use a custom subclass instead. Calling this method after instances have been created can result in undefined behavior, since it bypasses any setters and a class instance may have already examined a particular property and not be expecting any changes through this route.

      Parameters:
      drawLineProperties - properties that should be used as new defaults when instances of this class are created
      See Also:

    • setLogicalStructure

      public LogicalStructureObject setLogicalStructure(DrawLineLogicalStructure s)
      Setter implementing the LogicalStructure interface, which supports Eclipse's logical structure debugging facility.

    • getLogicalStructure

      public LogicalStructureObject getLogicalStructure()
      Getter implementing the LogicalStructure interface, which supports Eclipse's logical structure debugging facility.
      Specified by:
      getLogicalStructure in interface LogicalStructure
      Overrides:
      getLogicalStructure in class DrawItem