Package mars.venus.editors.jeditsyntax

Class TextAreaPainter

java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
mars.venus.editors.jeditsyntax.TextAreaPainter
All Implemented Interfaces:
ImageObserver, MenuContainer, Serializable, TabExpander
public class TextAreaPainter extends JComponent implements TabExpander
The text area repaint manager. It performs double buffering and paints lines of text.
Version:
$Id: TextAreaPainter.java,v 1.24 1999/12/13 03:40:30 sp Exp $
Author:
Slava Pestov
See Also:
Serialized Form

  • Constructor Details

    • TextAreaPainter

      public TextAreaPainter​(JEditTextArea textArea, TextAreaDefaults defaults)
      Creates a new repaint manager. This should be not be called directly.

  • Method Details

    • isManagingFocus

      public final boolean isManagingFocus()
      Returns if this component can be traversed by pressing the Tab key. This returns false. NOTE: as of Java 1.4 this method is deprecated and no longer has the desired effect because the focus subsystem does not call it. I've implemented a KeyEventDispatcher in JEditTextArea to handle Tabs. DPS 12-May-2010
      Overrides:
      isManagingFocus in class JComponent

    • getTabSize

      public int getTabSize()
      Fetch the tab size in characters. DPS 12-May-2010.
      Returns:
      int tab size in characters

    • setTabSize

      public void setTabSize​(int size)
      Set the tab size in characters. DPS 12-May-2010. Originally it was fixed at PlainDocument property value (8).
      Parameters:
      size - tab size in characters

    • getStyles

      public final SyntaxStyle[] getStyles()
      Returns the syntax styles used to paint colorized text. Entry n will be used to paint tokens with id = n.
      See Also:
      Token

    • setStyles

      public final void setStyles​(SyntaxStyle[] styles)
      Sets the syntax styles used to paint colorized text. Entry n will be used to paint tokens with id = n.
      Parameters:
      styles - The syntax styles
      See Also:
      Token

    • getCaretColor

      public final Color getCaretColor()
      Returns the caret color.

    • setCaretColor

      public final void setCaretColor​(Color caretColor)
      Sets the caret color.
      Parameters:
      caretColor - The caret color

    • getSelectionColor

      public final Color getSelectionColor()
      Returns the selection color.

    • setSelectionColor

      public final void setSelectionColor​(Color selectionColor)
      Sets the selection color.
      Parameters:
      selectionColor - The selection color

    • getLineHighlightColor

      public final Color getLineHighlightColor()
      Returns the line highlight color.

    • setLineHighlightColor

      public final void setLineHighlightColor​(Color lineHighlightColor)
      Sets the line highlight color.
      Parameters:
      lineHighlightColor - The line highlight color

    • isLineHighlightEnabled

      public final boolean isLineHighlightEnabled()
      Returns true if line highlight is enabled, false otherwise.

    • setLineHighlightEnabled

      public final void setLineHighlightEnabled​(boolean lineHighlight)
      Enables or disables current line highlighting.
      Parameters:
      lineHighlight - True if current line highlight should be enabled, false otherwise

    • getBracketHighlightColor

      public final Color getBracketHighlightColor()
      Returns the bracket highlight color.

    • setBracketHighlightColor

      public final void setBracketHighlightColor​(Color bracketHighlightColor)
      Sets the bracket highlight color.
      Parameters:
      bracketHighlightColor - The bracket highlight color

    • isBracketHighlightEnabled

      public final boolean isBracketHighlightEnabled()
      Returns true if bracket highlighting is enabled, false otherwise. When bracket highlighting is enabled, the bracket matching the one before the caret (if any) is highlighted.

    • setBracketHighlightEnabled

      public final void setBracketHighlightEnabled​(boolean bracketHighlight)
      Enables or disables bracket highlighting. When bracket highlighting is enabled, the bracket matching the one before the caret (if any) is highlighted.
      Parameters:
      bracketHighlight - True if bracket highlighting should be enabled, false otherwise

    • isBlockCaretEnabled

      public final boolean isBlockCaretEnabled()
      Returns true if the caret should be drawn as a block, false otherwise.

    • setBlockCaretEnabled

      public final void setBlockCaretEnabled​(boolean blockCaret)
      Sets if the caret should be drawn as a block, false otherwise.
      Parameters:
      blockCaret - True if the caret should be drawn as a block, false otherwise.

    • getEOLMarkerColor

      public final Color getEOLMarkerColor()
      Returns the EOL marker color.

    • setEOLMarkerColor

      public final void setEOLMarkerColor​(Color eolMarkerColor)
      Sets the EOL marker color.
      Parameters:
      eolMarkerColor - The EOL marker color

    • getEOLMarkersPainted

      public final boolean getEOLMarkersPainted()
      Returns true if EOL markers are drawn, false otherwise.

    • setEOLMarkersPainted

      public final void setEOLMarkersPainted​(boolean eolMarkers)
      Sets if EOL markers are to be drawn.
      Parameters:
      eolMarkers - True if EOL markers should be drawn, false otherwise

    • getInvalidLinesPainted

      public boolean getInvalidLinesPainted()
      Returns true if invalid lines are painted as red tildes (~), false otherwise.

    • setInvalidLinesPainted

      public void setInvalidLinesPainted​(boolean paintInvalid)
      Sets if invalid lines are to be painted as red tildes.
      Parameters:
      paintInvalid - True if invalid lines should be drawn, false otherwise

    • addCustomHighlight

      public void addCustomHighlight​(TextAreaPainter.Highlight highlight)
      Adds a custom highlight painter.
      Parameters:
      highlight - The highlight

    • getToolTipText

      public String getToolTipText​(MouseEvent evt)
      Returns the tool tip to display at the specified location.
      Overrides:
      getToolTipText in class JComponent
      Parameters:
      evt - The mouse event

    • getFontMetrics

      public FontMetrics getFontMetrics()
      Returns the font metrics used by this component.

    • setFont

      public void setFont​(Font font)
      Sets the font for this component. This is overridden to update the cached font metrics and to recalculate which lines are visible.
      Overrides:
      setFont in class JComponent
      Parameters:
      font - The font

    • paint

      public void paint​(Graphics gfx)
      Repaints the text.
      Overrides:
      paint in class JComponent
      Parameters:
      gfx - The graphics context

    • invalidateLine

      public final void invalidateLine​(int line)
      Marks a line as needing a repaint.
      Parameters:
      line - The line to invalidate

    • invalidateLineRange

      public final void invalidateLineRange​(int firstLine, int lastLine)
      Marks a range of lines as needing a repaint.
      Parameters:
      firstLine - The first line to invalidate
      lastLine - The last line to invalidate

    • invalidateSelectedLines

      public final void invalidateSelectedLines()
      Repaints the lines containing the selection.

    • nextTabStop

      public float nextTabStop​(float x, int tabOffset)
      Implementation of TabExpander interface. Returns next tab stop after a specified point.
      Specified by:
      nextTabStop in interface TabExpander
      Parameters:
      x - The x co-ordinate
      tabOffset - Ignored
      Returns:
      The next tab stop after x

    • getPreferredSize

      public Dimension getPreferredSize()
      Returns the painter's preferred size.
      Overrides:
      getPreferredSize in class JComponent

    • getMinimumSize

      public Dimension getMinimumSize()
      Returns the painter's minimum size.
      Overrides:
      getMinimumSize in class JComponent