Class AbstractFormBuilder

  • Direct Known Subclasses:
    PanelBuilder

    public abstract class AbstractFormBuilder
    extends java.lang.Object
    An abstract class that minimizes the effort required to implement non-visual builders that use the FormLayout.

    Builders hide details of the FormLayout and provide convenience behavior that assists you in constructing a form. This class provides a cell cursor that helps you traverse a form while you add components. Also, it offers several methods to append custom and logical columns and rows.

    Version:
    $Revision$
    Author:
    Karsten Lentzsch
    See Also:
    ButtonBarBuilder, ButtonStackBuilder, PanelBuilder, I15dPanelBuilder, DefaultFormBuilder
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.awt.Component add​(java.awt.Component component)
      Adds a component to the container using the default cell constraints.
      java.awt.Component add​(java.awt.Component component, CellConstraints cellConstraints)
      Adds a component to the panel using the given cell constraints.
      java.awt.Component add​(java.awt.Component component, java.lang.String encodedCellConstraints)
      Adds a component to the panel using the given encoded cell constraints.
      void appendColumn​(ColumnSpec columnSpec)
      Appends the given column specification to the builder's layout.
      void appendColumn​(java.lang.String encodedColumnSpec)
      Appends a column specification to the builder's layout that represents the given string encoding.
      void appendGlueColumn()
      Appends a glue column.
      void appendGlueRow()
      Appends a glue row.
      void appendLabelComponentsGapColumn()
      Appends a column that is the default gap between a label and its associated component.
      void appendParagraphGapRow()
      Appends a row that is the default gap for paragraphs.
      void appendRelatedComponentsGapColumn()
      Appends a column that is the default gap for related components.
      void appendRelatedComponentsGapRow()
      Appends a row that is the default gap for related components.
      void appendRow​(RowSpec rowSpec)
      Appends the given row specification to the builder's layout.
      void appendRow​(java.lang.String encodedRowSpec)
      Appends a row specification to the builder's layout that represents the given string encoding.
      void appendUnrelatedComponentsGapColumn()
      Appends a column that is the default gap for unrelated components.
      void appendUnrelatedComponentsGapRow()
      Appends a row that is the default gap for unrelated components.
      protected CellConstraints cellConstraints()
      Returns the CellConstraints object that is used as a cursor and holds the current column span and row span.
      protected CellConstraints createLeftAdjustedConstraints​(int columnSpan)
      Creates and returns a CellConstraints object at the current cursor position that uses the given column span and is adjusted to the left.
      int getColumn()
      Returns the cursor's column.
      int getColumnCount()
      Returns the number of columns in the form.
      protected int getColumnIncrementSign()
      Returns the sign (-1 or 1) used to increment the cursor's column when moving to the next column.
      java.awt.Container getContainer()
      Returns the container used to build the form.
      FormLayout getLayout()
      Returns the instance of FormLayout used to build this form.
      protected int getLeadingColumn()
      Returns the index of the leading column.
      int getRow()
      Returns the cursor's row.
      int getRowCount()
      Returns the number of rows in the form.
      boolean isLeftToRight()
      Returns whether this builder fills the form left-to-right or right-to-left.
      void nextColumn()
      Moves to the next column, does the same as #nextColumn(1).
      void nextColumn​(int columns)
      Moves to the next column.
      void nextLine()
      Moves to the next line: increases the row and resets the column; does the same as #nextLine(1).
      void nextLine​(int lines)
      Moves the cursor down several lines: increases the row by the specified number of lines and sets the cursor to the leading column.
      void nextRow()
      Increases the row by one; does the same as #nextRow(1).
      void nextRow​(int rows)
      Increases the row by the specified rows.
      void setAlignment​(CellConstraints.Alignment hAlign, CellConstraints.Alignment vAlign)
      Sets the horizontal and vertical alignment.
      void setBounds​(int column, int row, int columnSpan, int rowSpan)
      Sets the cell bounds (location and extent) to the given column, row, column span and row span.
      void setColumn​(int column)
      Sets the cursor to the given column.
      void setColumnSpan​(int columnSpan)
      Sets the cursor's column span.
      void setExtent​(int columnSpan, int rowSpan)
      Sets the cursor's extent to the given column span and row span.
      void setHAlignment​(CellConstraints.Alignment alignment)
      Sets the horizontal alignment.
      void setLeftToRight​(boolean b)
      Sets the form fill direction to left-to-right or right-to-left.
      void setOrigin​(int column, int row)
      Sets the cursor's origin to the given column and row.
      void setRow​(int row)
      Sets the cursor to the given row.
      void setRowSpan​(int rowSpan)
      Sets the cursor's row span.
      void setVAlignment​(CellConstraints.Alignment alignment)
      Sets the vertical alignment.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • AbstractFormBuilder

        public AbstractFormBuilder​(FormLayout layout,
                                   java.awt.Container container)
        Constructs an instance of AbstractFormBuilder for the given FormLayout and layout container.
        Parameters:
        layout - the FormLayout to use
        container - the layout container
        Throws:
        java.lang.NullPointerException - if the layout or container is null
      • AbstractFormBuilder

        @Deprecated
        public AbstractFormBuilder​(java.awt.Container container,
                                   FormLayout layout)
        Constructs an instance of AbstractFormBuilder for the given container and form layout.
        Parameters:
        container - the layout container
        layout - the FormLayout to use
    • Method Detail

      • getContainer

        public final java.awt.Container getContainer()
        Returns the container used to build the form.
        Returns:
        the layout container
      • getLayout

        public final FormLayout getLayout()
        Returns the instance of FormLayout used to build this form.
        Returns:
        the FormLayout
      • getColumnCount

        public final int getColumnCount()
        Returns the number of columns in the form.
        Returns:
        the number of columns
      • getRowCount

        public final int getRowCount()
        Returns the number of rows in the form.
        Returns:
        the number of rows
      • isLeftToRight

        public final boolean isLeftToRight()
        Returns whether this builder fills the form left-to-right or right-to-left. The initial value of this property is set during the builder construction from the layout container's componentOrientation property.
        Returns:
        true indicates left-to-right, false indicates right-to-left
        See Also:
        setLeftToRight(boolean), ComponentOrientation
      • setLeftToRight

        public final void setLeftToRight​(boolean b)
        Sets the form fill direction to left-to-right or right-to-left. The initial value of this property is set during the builder construction from the layout container's componentOrientation property.
        Parameters:
        b - true indicates left-to-right, false right-to-left
        See Also:
        isLeftToRight(), ComponentOrientation
      • getColumn

        public final int getColumn()
        Returns the cursor's column.
        Returns:
        the cursor's column
      • setColumn

        public final void setColumn​(int column)
        Sets the cursor to the given column.
        Parameters:
        column - the cursor's new column index
      • getRow

        public final int getRow()
        Returns the cursor's row.
        Returns:
        the cursor's row
      • setRow

        public final void setRow​(int row)
        Sets the cursor to the given row.
        Parameters:
        row - the cursor's new row index
      • setColumnSpan

        public final void setColumnSpan​(int columnSpan)
        Sets the cursor's column span.
        Parameters:
        columnSpan - the cursor's new column span (grid width)
      • setRowSpan

        public final void setRowSpan​(int rowSpan)
        Sets the cursor's row span.
        Parameters:
        rowSpan - the cursor's new row span (grid height)
      • setOrigin

        public final void setOrigin​(int column,
                                    int row)
        Sets the cursor's origin to the given column and row.
        Parameters:
        column - the new column index
        row - the new row index
      • setExtent

        public final void setExtent​(int columnSpan,
                                    int rowSpan)
        Sets the cursor's extent to the given column span and row span.
        Parameters:
        columnSpan - the new column span (grid width)
        rowSpan - the new row span (grid height)
      • setBounds

        public final void setBounds​(int column,
                                    int row,
                                    int columnSpan,
                                    int rowSpan)
        Sets the cell bounds (location and extent) to the given column, row, column span and row span.
        Parameters:
        column - the new column index (grid x)
        row - the new row index (grid y)
        columnSpan - the new column span (grid width)
        rowSpan - the new row span (grid height)
      • nextColumn

        public final void nextColumn()
        Moves to the next column, does the same as #nextColumn(1).
      • nextColumn

        public final void nextColumn​(int columns)
        Moves to the next column.
        Parameters:
        columns - number of columns to move
      • nextRow

        public final void nextRow()
        Increases the row by one; does the same as #nextRow(1).
      • nextRow

        public final void nextRow​(int rows)
        Increases the row by the specified rows.
        Parameters:
        rows - number of rows to move
      • nextLine

        public final void nextLine()
        Moves to the next line: increases the row and resets the column; does the same as #nextLine(1).
      • nextLine

        public final void nextLine​(int lines)
        Moves the cursor down several lines: increases the row by the specified number of lines and sets the cursor to the leading column.
        Parameters:
        lines - number of rows to move
      • setHAlignment

        public final void setHAlignment​(CellConstraints.Alignment alignment)
        Sets the horizontal alignment.
        Parameters:
        alignment - the new horizontal alignment
      • setVAlignment

        public final void setVAlignment​(CellConstraints.Alignment alignment)
        Sets the vertical alignment.
        Parameters:
        alignment - the new vertical alignment
      • setAlignment

        public final void setAlignment​(CellConstraints.Alignment hAlign,
                                       CellConstraints.Alignment vAlign)
        Sets the horizontal and vertical alignment.
        Parameters:
        hAlign - the new horizontal alignment
        vAlign - the new vertical alignment
      • appendColumn

        public final void appendColumn​(ColumnSpec columnSpec)
        Appends the given column specification to the builder's layout.
        Parameters:
        columnSpec - the column specification object to append
        See Also:
        appendColumn(String)
      • appendColumn

        public final void appendColumn​(java.lang.String encodedColumnSpec)
        Appends a column specification to the builder's layout that represents the given string encoding.
        Parameters:
        encodedColumnSpec - the column specification to append in encoded form
        See Also:
        appendColumn(ColumnSpec)
      • appendRow

        public final void appendRow​(RowSpec rowSpec)
        Appends the given row specification to the builder's layout.
        Parameters:
        rowSpec - the row specification object to append
        See Also:
        appendRow(String)
      • appendRow

        public final void appendRow​(java.lang.String encodedRowSpec)
        Appends a row specification to the builder's layout that represents the given string encoding.
        Parameters:
        encodedRowSpec - the row specification to append in encoded form
        See Also:
        appendRow(RowSpec)
      • add

        public final java.awt.Component add​(java.awt.Component component,
                                            CellConstraints cellConstraints)
        Adds a component to the panel using the given cell constraints.
        Parameters:
        component - the component to add
        cellConstraints - the component's cell constraints
        Returns:
        the added component
      • add

        public final java.awt.Component add​(java.awt.Component component,
                                            java.lang.String encodedCellConstraints)
        Adds a component to the panel using the given encoded cell constraints.
        Parameters:
        component - the component to add
        encodedCellConstraints - the component's encoded cell constraints
        Returns:
        the added component
      • cellConstraints

        protected final CellConstraints cellConstraints()
        Returns the CellConstraints object that is used as a cursor and holds the current column span and row span.
        Returns:
        the builder's current CellConstraints object
      • getLeadingColumn

        protected int getLeadingColumn()
        Returns the index of the leading column.

        Subclasses may override this method, for example, if the form has a leading gap column that should not be filled with components.

        Returns:
        the leading column
      • getColumnIncrementSign

        protected final int getColumnIncrementSign()
        Returns the sign (-1 or 1) used to increment the cursor's column when moving to the next column.
        Returns:
        -1 for right-to-left, 1 for left-to-right
      • createLeftAdjustedConstraints

        protected final CellConstraints createLeftAdjustedConstraints​(int columnSpan)
        Creates and returns a CellConstraints object at the current cursor position that uses the given column span and is adjusted to the left. Useful when building from right to left.
        Parameters:
        columnSpan - the column span to be used in the constraints
        Returns:
        CellConstraints adjusted to the left hand side