/*
* EditPane.java - Text area and buffer switcher
* :tabSize=4:indentSize=4:noTabs=false:
* :folding=explicit:collapseFolds=1:
*
* Copyright (C) 2000, 2005 Slava Pestov
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
package org.gjt.sp.jedit;
//{{{ Imports
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics2D;
import java.util.HashMap;
import java.util.Map;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import org.gjt.sp.jedit.EditBus.EBHandler;
import org.gjt.sp.jedit.buffer.JEditBuffer;
import org.gjt.sp.jedit.bufferset.BufferSet;
import org.gjt.sp.jedit.bufferset.BufferSetListener;
import org.gjt.sp.jedit.gui.TabbedBufferSwitcher;
import org.gjt.sp.jedit.gui.StatusBar;
import org.gjt.sp.jedit.msg.BufferChanging;
import org.gjt.sp.jedit.msg.BufferUpdate;
import org.gjt.sp.jedit.msg.EditPaneUpdate;
import org.gjt.sp.jedit.msg.PropertiesChanged;
import org.gjt.sp.jedit.options.GeneralOptionPane;
import org.gjt.sp.jedit.options.GutterOptionPane;
import org.gjt.sp.jedit.syntax.SyntaxStyle;
import org.gjt.sp.jedit.textarea.AntiAlias;
import org.gjt.sp.jedit.textarea.Gutter;
import org.gjt.sp.jedit.textarea.GutterPopupHandler;
import org.gjt.sp.jedit.textarea.JEditTextArea;
import org.gjt.sp.jedit.textarea.MouseHandler;
import org.gjt.sp.jedit.textarea.Selection;
import org.gjt.sp.jedit.textarea.StatusListener;
import org.gjt.sp.jedit.textarea.TextArea;
import org.gjt.sp.jedit.textarea.TextAreaExtension;
import org.gjt.sp.jedit.textarea.TextAreaPainter;
import org.gjt.sp.jedit.textarea.TextAreaTransferHandler;
import org.gjt.sp.util.SyntaxUtilities;
import org.gjt.sp.util.ThreadUtilities;
//}}}
/**
* A panel containing a text area.<p>
*
* In a BeanShell script, you can obtain the current edit pane from the
* <code>editPane</code> variable.<p>
*
*
* Each View can have multiple editPanes, one is active at a time.
* Each EditPane has a single JEditTextArea, and is operating on single buffer.
* The EditPane also can switch buffers.
*
* This is the "controller" between a JEditTextArea (view) and a buffer (model).
*
* This class does not have a public constructor.
* Edit panes can be created and destroyed using methods in the
* {@link View} class.<p>
*
*
* @see View#splitHorizontally()
* @see View#splitVertically()
* @see View#unsplitCurrent()
* @see View#unsplit()
* @see View#getEditPane()
* @see View#getEditPanes()
*
* @author Slava Pestov
* @version $Id: EditPane.java 23821 2015-01-04 14:31:09Z ezust $
*/
public class EditPane extends JPanel implements BufferSetListener
{
//{{{ getView() method
/**
* Returns the view containing this edit pane.
* @return the view that contains this EditPane
* @since jEdit 2.5pre2
*/
public View getView()
{
return view;
} //}}}
// {{{ get(TextArea) method
/**
* Returns the EditPane of a TextArea.
*
* @param ta the textArea
* @return the EditPane containing the TextArea.
*/
public static EditPane get(TextArea ta)
{
if (ta == null) return null;
return (EditPane)SwingUtilities.getAncestorOfClass(EditPane.class, ta);
} // }}}
//{{{ getBuffer() method
/**
* Returns the current buffer.
* @return the current buffer
* @since jEdit 2.5pre2
*/
public Buffer getBuffer()
{
return buffer;
} //}}}
//{{{ setBuffer() methods
/**
* Sets the current buffer.
* @param buffer The buffer to edit.
* @since jEdit 2.5pre2
*/
public void setBuffer(@Nonnull Buffer buffer)
{
setBuffer(buffer, true);
}
/**
* Sets the current buffer.
* @param buffer The buffer to edit.
* @param requestFocus true if the textarea should request focus, false otherwise
* @since jEdit 4.3pre6
*/
public void setBuffer(@Nonnull final Buffer buffer, boolean requestFocus)
{
if(buffer == null)
throw new NullPointerException("The buffer cannot be null");
if(this.buffer == buffer)
return;
if (bufferSet.indexOf(buffer) == -1)
{
jEdit.getBufferSetManager().addBuffer(this, buffer);
}
//if(buffer.insideCompoundEdit())
// buffer.endCompoundEdit();
EditBus.send(new BufferChanging(this, buffer));
if (bufferSet.indexOf(this.buffer) != -1)
{
// when closing the last buffer of a bufferSet, the current buffer will still be the closed
// buffer until a new empty buffer is created.
// So if the current buffer is not anymore in the bufferSet, do not set the recentBuffer
recentBuffer = this.buffer;
}
if(recentBuffer != null)
saveCaretInfo();
this.buffer = buffer;
textArea.setBuffer(buffer);
if(!init)
{
view.updateTitle();
if(bufferSwitcher != null)
{
if(bufferSwitcher.getSelectedItem() != buffer)
bufferSwitcher.setSelectedItem(buffer);
bufferSwitcher.setToolTipText(buffer.getPath());
}
EditBus.send(new EditPaneUpdate(this,EditPaneUpdate
.BUFFER_CHANGED));
}
if (requestFocus)
{
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
// only do this if we are the current edit pane
if(view.getEditPane() == EditPane.this
&& (bufferSwitcher == null
|| !bufferSwitcher.specialState()))
{
textArea.requestFocus();
}
}
});
}
// If the buffer is loading, the caret info will be loaded on
// BufferUpdate.LOADED. Otherwise, we don't need to wait for IO.
if (!buffer.isLoading())
{
ThreadUtilities.runInDispatchThread(new Runnable()
{
public void run()
{
// avoid a race condition
// see bug #834338
if(buffer == getBuffer())
loadCaretInfo();
// This must happen after loadCaretInfo.
// Otherwise caret is not restored properly.
int check = jEdit.getIntegerProperty("checkFileStatus");
if (jEdit.isStartupDone() && (check & GeneralOptionPane.checkFileStatus_focusBuffer) > 0)
jEdit.checkBufferStatus(view, true);
}
});
}
} //}}}
//{{{ prevBuffer() method
/**
* Selects the previous buffer.
* @since jEdit 2.7pre2
*/
public void prevBuffer()
{
Buffer buffer = bufferSet.getPreviousBuffer(bufferSet.indexOf(this.buffer));
setBuffer(buffer);
} //}}}
//{{{ nextBuffer() method
/**
* Selects the next buffer.
* @since jEdit 2.7pre2
*/
public void nextBuffer()
{
Buffer buffer = bufferSet.getNextBuffer(bufferSet.indexOf(this.buffer));
setBuffer(buffer);
} //}}}
//{{{ recentBuffer() method
/**
* Selects the most recently edited buffer.
* @since jEdit 2.7pre2
*/
public void recentBuffer()
{
if(recentBuffer != null)
setBuffer(recentBuffer);
else
getToolkit().beep();
} //}}}
//{{{ focusOnTextArea() method
/**
* Sets the focus onto the text area.
* @since jEdit 2.5pre2
*/
public void focusOnTextArea()
{
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
textArea.requestFocus();
}
});
} //}}}
//{{{ getTextArea() method
/**
* Returns the view's text area.
* @return the text area of the edit pane
* @since jEdit 2.5pre2
*/
public JEditTextArea getTextArea()
{
return textArea;
} //}}}
//{{{ getBufferSwitcher() method
/**
* Returns the buffer switcher combo box instance.
* @return the buffer switcher (it can be null)
* @since jEdit 4.1pre8
*/
public TabbedBufferSwitcher getBufferSwitcher()
{
return bufferSwitcher;
} //}}}
//{{{ focusBufferSwitcher() method
/**
* Pops up and focuses on the buffer switcher combo box.
* @since jEdit 4.3pre18
* (previously known as showBufferSwitcher)
*/
public void focusBufferSwitcher()
{
if(bufferSwitcher == null)
getToolkit().beep();
else
{
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
bufferSwitcher.requestFocus();
bufferSwitcher.showPopup();
}
});
}
} //}}}
//{{{ saveCaretInfo() method
/**
* Saves the caret information to the current buffer.
* @since jEdit 2.5pre2
*/
public void saveCaretInfo()
{
if(!buffer.isLoaded())
return;
buffer.setIntegerProperty(Buffer.CARET,
textArea.getCaretPosition());
CaretInfo caretInfo = caretsForPath.get(buffer.getPath());
if (caretInfo == null)
{
caretInfo = new CaretInfo();
caretsForPath.put(buffer.getPath(), caretInfo);
}
caretInfo.caret = textArea.getCaretPosition();
Selection[] selection = textArea.getSelection();
for(int i = 0; i < selection.length; i++)
selection[i] = (Selection)selection[i].clone();
buffer.setProperty(Buffer.SELECTION,selection);
caretInfo.selection = selection;
caretInfo.rectangularSelection = textArea.isRectangularSelectionEnabled();
caretInfo.multipleSelection = textArea.isMultipleSelectionEnabled();
buffer.setIntegerProperty(Buffer.SCROLL_VERT,
textArea.getFirstPhysicalLine());
caretInfo.scrollVert = textArea.getFirstPhysicalLine();
buffer.setIntegerProperty(Buffer.SCROLL_HORIZ,
textArea.getHorizontalOffset());
caretInfo.scrollHoriz = textArea.getHorizontalOffset();
if (!buffer.isUntitled())
{
BufferHistory.setEntry(buffer.getPath(), textArea.getCaretPosition(),
(Selection[])buffer.getProperty(Buffer.SELECTION),
buffer.getStringProperty(JEditBuffer.ENCODING),
buffer.getMode().getName());
}
} //}}}
//{{{ loadCaretInfo() method
/**
* Loads the caret and selection information from this EditPane, fall
* back to the information from the current buffer if none is already
* in this EditPane.
* @since jEdit 2.5pre2
*/
public void loadCaretInfo()
{
// get our internal map of buffer -> CaretInfo since there might
// be current info already
CaretInfo caretInfo = caretsForPath.get(buffer.getPath());
if (caretInfo == null)
{
caretInfo = new CaretInfo();
}
// set the position of the caret itself.
// Caret position could be stored in the internal map already,
// if so, use that one first. Otherwise, fall back to any
// previously saved caret position that was stored in the
// buffer properties.
int caret = caretInfo.caret;
if (caret == -1 || buffer.getBooleanProperty(Buffer.CARET_POSITIONED))
{
Integer i = (Integer) buffer.getProperty(Buffer.CARET);
caret = i == null ? -1 : i;
}
buffer.unsetProperty(Buffer.CARET_POSITIONED);
if(caret != -1)
textArea.setCaretPosition(Math.min(caret,
buffer.getLength()));
// set any selections
Selection[] selection = caretInfo.selection;
if ( selection == null )
{
selection = (Selection[]) buffer.getProperty(Buffer.SELECTION);
}
if(selection != null)
{
for(int i = 0; i < selection.length; i++)
{
Selection s = selection[i];
int max = buffer.getLength();
if(s.getStart() > max || s.getEnd() > max)
selection[i] = null;
}
}
textArea.setSelection(selection);
textArea.setRectangularSelectionEnabled(caretInfo.rectangularSelection);
textArea.setMultipleSelectionEnabled(caretInfo.multipleSelection);
// set firstLine value
int firstLine = caretInfo.scrollVert;
if ( firstLine == -1 )
{
Integer i = (Integer) buffer.getProperty(Buffer.SCROLL_VERT);
firstLine = i == null ? -1 : i;
}
if(firstLine != -1)
textArea.setFirstPhysicalLine(firstLine);
// set horizontal offset
int horizontalOffset = caretInfo.scrollHoriz;
if (horizontalOffset == -1)
{
Integer i = (Integer) buffer.getProperty(Buffer.SCROLL_HORIZ);
horizontalOffset = i == null ? -1 : i;
}
if(horizontalOffset != -1)
textArea.setHorizontalOffset(horizontalOffset);
/* Silly bug workaround #8694. If you look at the above code,
* note that we restore the saved caret position first, then
* scroll to the saved location. However, the caret changing
* can itself result in scrolling to a different location than
* what was saved; and since moveCaretPosition() calls
* updateBracketHighlight(), the bracket highlight's out of
* bounds calculation will rely on a different set of physical
* first/last lines than what we will end up with eventually.
* Instead of confusing the user with status messages that
* appear at random when switching buffers, we simply hide the
* message altogether. */
view.getStatus().setMessage(null);
} //}}}
//{{{ bufferRenamed() method
/**
* This method should be called by the Buffer when the path is changing.
* @param oldPath the old path of the buffer
* @param newPath the new path of the buffer
*/
void bufferRenamed(String oldPath, String newPath)
{
CaretInfo caretInfo = caretsForPath.remove(oldPath);
if (caretInfo != null)
caretsForPath.put(newPath, caretInfo);
} //}}}
//{{{ CaretInfo class
/**
* Need to track this info for each buffer that this EditPane might edit
* since a buffer may be open in more than one EditPane at a time. That
* means we need to track this info at the EditPane level rather than
* the buffer level.
*/
private static class CaretInfo
{
public int caret = -1;
public Selection[] selection;
public int scrollVert = -1;
public int scrollHoriz = -1;
public boolean rectangularSelection;
public boolean multipleSelection;
} //}}}
//{{{ goToNextMarker() method
/**
* Moves the caret to the next marker.
* @since jEdit 4.3pre3
*/
public void goToNextMarker(boolean select)
{
java.util.List<Marker> markers = buffer.getMarkers();
if(markers.isEmpty())
{
getToolkit().beep();
return;
}
Marker marker = null;
int caret = textArea.getCaretPosition();
for (Marker _marker : markers)
{
if (_marker.getPosition() > caret)
{
marker = _marker;
break;
}
}
// the markers list is not empty at this point
if(marker == null)
marker = markers.get(0);
if(select)
textArea.extendSelection(caret,marker.getPosition());
else if(!textArea.isMultipleSelectionEnabled())
textArea.selectNone();
textArea.moveCaretPosition(marker.getPosition());
} //}}}
//{{{ goToPrevMarker() method
/**
* Moves the caret to the previous marker.
* @since jEdit 2.7pre2
*/
public void goToPrevMarker(boolean select)
{
java.util.List<Marker> markers = buffer.getMarkers();
if(markers.isEmpty())
{
getToolkit().beep();
return;
}
int caret = textArea.getCaretPosition();
Marker marker = null;
for(int i = markers.size() - 1; i >= 0; i--)
{
Marker _marker = markers.get(i);
if(_marker.getPosition() < caret)
{
marker = _marker;
break;
}
}
if(marker == null)
marker = markers.get(markers.size() - 1);
if(select)
textArea.extendSelection(caret,marker.getPosition());
else if(!textArea.isMultipleSelectionEnabled())
textArea.selectNone();
textArea.moveCaretPosition(marker.getPosition());
} //}}}
//{{{ goToMarker() method
/**
* Moves the caret to the marker with the specified shortcut.
* @param shortcut The shortcut
* @param select True if the selection should be extended,
* false otherwise
* @since jEdit 3.2pre2
*/
public void goToMarker(char shortcut, boolean select)
{
Marker marker = buffer.getMarker(shortcut);
if(marker == null)
{
getToolkit().beep();
return;
}
int pos = marker.getPosition();
if(select)
textArea.extendSelection(textArea.getCaretPosition(),pos);
else if(!textArea.isMultipleSelectionEnabled())
textArea.selectNone();
textArea.moveCaretPosition(pos);
} //}}}
//{{{ addMarker() method
/**
* Adds a marker at the caret position.
* @since jEdit 3.2pre1
*/
public void addMarker()
{
int caretLine = textArea.getCaretLine();
// always add markers on selected lines
Selection[] selection = textArea.getSelection();
for (Selection s : selection)
{
int startLine = s.getStartLine();
if (startLine != s.getEndLine() && startLine != caretLine)
{
buffer.addMarker('\0', s.getStart());
}
if (s.getEndLine() != caretLine) buffer.addMarker('\0', s.getEnd());
}
// toggle marker on caret line
buffer.addOrRemoveMarker('\0',textArea.getCaretPosition());
} //}}}
//{{{ swapMarkerAndCaret() method
/**
* Moves the caret to the marker with the specified shortcut,
* then sets the marker position to the former caret position.
* @param shortcut The shortcut
* @since jEdit 3.2pre2
*/
public void swapMarkerAndCaret(char shortcut)
{
Marker marker = buffer.getMarker(shortcut);
if(marker == null)
{
getToolkit().beep();
return;
}
int caret = textArea.getCaretPosition();
textArea.setCaretPosition(marker.getPosition());
buffer.addMarker(shortcut,caret);
} //}}}
//{{{ handlePropertiesChanged() method
@EBHandler
public void handlePropertiesChanged(PropertiesChanged msg)
{
propertiesChanged();
loadBufferSwitcher();
} //}}}
//{{{ getMinimumSize() method
/**
* Returns 0,0 for split pane compatibility.
*/
@Override
public final Dimension getMinimumSize()
{
return new Dimension(0,0);
} //}}}
//{{{ getBufferSet() method
/**
* Returns the current buffer set.
* This can be changed by setBufferSetScope().
* @return the buffer set which is currently used by this EditPane
* @since jEdit 4.3pre17
*/
public BufferSet getBufferSet()
{
return bufferSet;
} //}}}
//{{{ bufferAdded() method
/**
* A buffer was added in the bufferSet.
* @param buffer the added buffer
* @param index the position where it was added
* @since jEdit 4.3pre15
*/
public void bufferAdded(Buffer buffer, int index)
{
if (buffer == null)
return;
if (bufferSwitcher != null)
bufferSwitcher.updateBufferList();
if (bufferSet.indexOf(this.buffer) == -1)
{
// it happens when having 1 untitled buffer if I open a file. The untitled buffer
// is closed but the new buffer is not yet opened
setBuffer(buffer);
}
} //}}}
//{{{ bufferRemoved() method
/**
* A buffer was removed from the bufferSet.
* @param buffer the removed buffer
* @param index the position where it was before being removed
* @since jEdit 4.3pre15
*/
public void bufferRemoved(Buffer buffer, int index)
{
if (buffer.isUntitled())
{
// the buffer was a new file so I do not need to keep it's informations
caretsForPath.remove(buffer.getPath());
}
if (buffer == this.buffer)
{
// The closed buffer is the current buffer
Buffer newBuffer = recentBuffer != null ?
recentBuffer : bufferSet.getPreviousBuffer(index);
if(newBuffer != null && !newBuffer.isClosed())
{
setBuffer(newBuffer);
if (bufferSet.size() > 1)
{
recentBuffer = bufferSet.getPreviousBuffer(index -1);
}
}
else if(bufferSet.size() != 0)
{
setBuffer(bufferSet.getBuffer(0));
recentBuffer = null;
}
}
if(buffer == recentBuffer)
recentBuffer = null;
if (bufferSwitcher != null)
bufferSwitcher.updateBufferList();
} //}}}
//{{{ bufferMoved() method
/**
* A buffer was moved in the BufferSet.
* @param buffer the moved buffer
* @param oldIndex the position it was before
* @param newIndex the new position
* @since jEdit 4.3pre15
*/
public void bufferMoved(Buffer buffer, int oldIndex, int newIndex)
{
if (bufferSwitcher != null)
bufferSwitcher.updateBufferList();
} //}}}
//{{{ bufferSetSorted() method
/**
* The bufferSet was sorted
* @since jEdit 4.3pre16
*/
public void bufferSetSorted()
{
if (bufferSwitcher != null)
bufferSwitcher.updateBufferList();
} //}}}
//{{{ toString() method
@Override
public String toString()
{
return getClass().getName() + '['
+ (view.getEditPane() == this
? "active]" : "inactive]");
} //}}}
//{{{ Package-private members
//{{{ EditPane constructor
EditPane(@Nonnull View view, @Nullable BufferSet bufferSetSource, @Nonnull Buffer buffer)
{
super(new BorderLayout());
BufferSet.Scope scope = jEdit.getBufferSetManager().getScope();
BufferSet source = bufferSetSource;
switch (scope)
{
case editpane:
// do nothing
break;
case view:
{
EditPane editPane = view.getEditPane();
if (editPane != null)
{
// if we have an editpane we copy it
source = editPane.getBufferSet();
}
}
break;
case global:
View activeView = jEdit.getActiveView();
if (activeView != null)
{
EditPane editPane = activeView.getEditPane();
if (editPane != null)
{
source = editPane.getBufferSet();
}
}
break;
}
bufferSet = new BufferSet(source);
init = true;
this.view = view;
textArea = new JEditTextArea(view);
bufferSet.addBufferSetListener(this);
textArea.getPainter().setAntiAlias(new AntiAlias(jEdit.getProperty("view.antiAlias")));
textArea.setMouseHandler(new MouseHandler(textArea));
textArea.setTransferHandler(new TextAreaTransferHandler());
markerHighlight = new MarkerHighlight();
Gutter gutter = textArea.getGutter();
gutter.setGutterEnabled(GutterOptionPane.isGutterEnabled());
gutter.setMinLineNumberDigitCount(GutterOptionPane.getMinLineNumberDigits());
gutter.setSelectionAreaEnabled(GutterOptionPane.isSelectionAreaEnabled());
gutter.addExtension(markerHighlight);
gutter.setSelectionPopupHandler(
new GutterPopupHandler()
{
public void handlePopup(int x, int y, int line)
{
Buffer buffer = getBuffer();
buffer.addOrRemoveMarker('\0',
buffer.getLineStartOffset(line));
}
});
textArea.addStatusListener(new StatusHandler());
add(BorderLayout.CENTER,textArea);
propertiesChanged();
setBuffer(buffer);
// need to add the buffer to the bufferSet.
// It may not have been done by the setBuffer() because the EditPane is not yet known by jEdit, and for
// view and global scope it is added through this list
if (bufferSet.indexOf(buffer) == -1)
bufferSet.addBuffer(buffer);
loadBufferSwitcher();
init = false;
EditBus.addToBus(this);
} //}}}
//{{{ close() method
void close()
{
saveCaretInfo();
EditBus.send(new EditPaneUpdate(this,EditPaneUpdate.DESTROYED));
EditBus.removeFromBus(this);
textArea.dispose();
} //}}}
//}}}
//{{{ Private members
//{{{ Instance variables
private boolean init;
/** The View where the edit pane is. */
private final View view;
private final BufferSet bufferSet;
/** The current buffer. */
private Buffer buffer;
private Buffer recentBuffer;
private TabbedBufferSwitcher bufferSwitcher;
/** The textArea inside the edit pane. */
private final JEditTextArea textArea;
private final MarkerHighlight markerHighlight;
// A map of buffer.getPath() -> CaretInfo. This is necessary for
// when the same buffer is open in more than one EditPane and the user
// is switching between buffers. We want to keep the caret in the
// right position in each EditPane, which won't be the case if we
// just use the buffer caret property.
private final Map<String, CaretInfo> caretsForPath = new HashMap<String, CaretInfo>();
//}}}
//{{{ propertiesChanged() method
private void propertiesChanged()
{
TextAreaPainter painter = textArea.getPainter();
initPainter(painter);
Gutter gutter = textArea.getGutter();
gutter.setExpanded(jEdit.getBooleanProperty(
"view.gutter.lineNumbers"));
int interval = jEdit.getIntegerProperty(
"view.gutter.highlightInterval",5);
gutter.setHighlightInterval(interval);
gutter.setCurrentLineHighlightEnabled(jEdit.getBooleanProperty(
"view.gutter.highlightCurrentLine"));
gutter.setStructureHighlightEnabled(jEdit.getBooleanProperty(
"view.gutter.structureHighlight"));
gutter.setStructureHighlightColor(
jEdit.getColorProperty("view.gutter.structureHighlightColor"));
Color backgroundColor = jEdit.getColorProperty("view.gutter.bgColor");
gutter.setBackground(backgroundColor);
textArea.setBackground(backgroundColor);
gutter.setForeground(
jEdit.getColorProperty("view.gutter.fgColor"));
gutter.setHighlightedForeground(
jEdit.getColorProperty("view.gutter.highlightColor"));
gutter.setFoldColor(
jEdit.getColorProperty("view.gutter.foldColor"));
markerHighlight.setMarkerHighlightColor(
jEdit.getColorProperty("view.gutter.markerColor"));
markerHighlight.setMarkerHighlightEnabled(jEdit.getBooleanProperty(
"view.gutter.markerHighlight"));
gutter.setCurrentLineForeground(
jEdit.getColorProperty("view.gutter.currentLineColor"));
String alignment = jEdit.getProperty(
"view.gutter.numberAlignment");
if ("right".equals(alignment))
{
gutter.setLineNumberAlignment(Gutter.RIGHT);
}
else if ("center".equals(alignment))
{
gutter.setLineNumberAlignment(Gutter.CENTER);
}
else // left == default case
{
gutter.setLineNumberAlignment(Gutter.LEFT);
}
gutter.setFont(jEdit.getFontProperty("view.gutter.font"));
gutter.setGutterEnabled(GutterOptionPane.isGutterEnabled());
gutter.setMinLineNumberDigitCount(
GutterOptionPane.getMinLineNumberDigits());
gutter.setSelectionAreaEnabled(
GutterOptionPane.isSelectionAreaEnabled());
gutter.setSelectionAreaBackground(
GutterOptionPane.getSelectionAreaBackground());
gutter.setSelectionAreaWidth(
GutterOptionPane.getSelectionAreaWidth());
int width = jEdit.getIntegerProperty(
"view.gutter.borderWidth",3);
gutter.setBorder(width,
jEdit.getColorProperty("view.gutter.focusBorderColor"),
jEdit.getColorProperty("view.gutter.noFocusBorderColor"),
textArea.getPainter().getBackground());
gutter.setFoldPainter(textArea.getFoldPainter());
textArea.setCaretBlinkEnabled(jEdit.getBooleanProperty(
"view.caretBlink"));
textArea.setElectricScroll(jEdit.getIntegerProperty(
"view.electricBorders",0));
// Set up the right-click popup menu
textArea.createPopupMenu(null);
// use old property name for backwards compatibility
textArea.setQuickCopyEnabled(jEdit.getBooleanProperty(
"view.middleMousePaste"));
textArea.setDragEnabled(jEdit.getBooleanProperty(
"view.dragAndDrop"));
textArea.setJoinNonWordChars(jEdit.getBooleanProperty(
"view.joinNonWordChars"));
textArea.setCtrlForRectangularSelection(jEdit.getBooleanProperty(
"view.ctrlForRectangularSelection"));
textArea.propertiesChanged();
if (bufferSwitcher != null)
{
bufferSwitcher.setMaximumRowCount(jEdit.getIntegerProperty(
"bufferSwitcher.maxRowCount",10));
}
} //}}}
//{{{ initPainter() method
/**
* Init the painter of a textarea.
*
* @param painter the painter of a textarea
* @since jEdit 4.3pre12
*/
public static void initPainter(TextAreaPainter painter)
{
painter.setFont(jEdit.getFontProperty("view.font"));
painter.setStructureHighlightEnabled(jEdit.getBooleanProperty(
"view.structureHighlight"));
painter.setStructureHighlightColor(
jEdit.getColorProperty("view.structureHighlightColor"));
painter.setEOLMarkersPainted(jEdit.getBooleanProperty(
"view.eolMarkers"));
painter.setEOLMarkerChar(
jEdit.getProperty("view.eolMarkerChar", "ยท"));
painter.setEOLMarkerColor(
jEdit.getColorProperty("view.eolMarkerColor"));
painter.setWrapGuidePainted(jEdit.getBooleanProperty(
"view.wrapGuide"));
painter.setWrapGuideColor(
jEdit.getColorProperty("view.wrapGuideColor"));
painter.setCaretColor(
jEdit.getColorProperty("view.caretColor"));
painter.setSelectionColor(
jEdit.getColorProperty("view.selectionColor"));
painter.setMultipleSelectionColor(
jEdit.getColorProperty("view.multipleSelectionColor"));
painter.setBackground(
jEdit.getColorProperty("view.bgColor"));
painter.setForeground(
jEdit.getColorProperty("view.fgColor"));
painter.setBlockCaretEnabled(jEdit.getBooleanProperty(
"view.blockCaret"));
painter.setThickCaretEnabled(jEdit.getBooleanProperty(
"view.thickCaret"));
painter.setLineHighlightEnabled(jEdit.getBooleanProperty(
"view.lineHighlight"));
painter.setLineHighlightColor(
jEdit.getColorProperty("view.lineHighlightColor"));
painter.setAntiAlias(new AntiAlias(jEdit.getProperty("view.antiAlias")));
painter.setFractionalFontMetricsEnabled(jEdit.getBooleanProperty(
"view.fracFontMetrics"));
painter.setSelectionFgColor(jEdit.getColorProperty(
"view.selectionFgColor"));
painter.setSelectionFgColorEnabled(jEdit.getBooleanProperty(
"view.selectionFg"));
String defaultFont = jEdit.getProperty("view.font");
int defaultFontSize = jEdit.getIntegerProperty("view.fontsize",12);
painter.setStyles(SyntaxUtilities.loadStyles(defaultFont,defaultFontSize));
SyntaxStyle[] foldLineStyle = new SyntaxStyle[4];
for(int i = 0; i <= 3; i++)
{
foldLineStyle[i] = GUIUtilities.parseStyle(
jEdit.getProperty("view.style.foldLine." + i),
defaultFont,defaultFontSize);
}
painter.setFoldLineStyle(foldLineStyle);
} //}}}
//{{{ loadBufferSwitcher() method
void loadBufferSwitcher()
{
if(jEdit.getBooleanProperty("view.showBufferSwitcher"))
{
if(bufferSwitcher == null)
{
bufferSwitcher = new TabbedBufferSwitcher(this);
add(BorderLayout.NORTH,bufferSwitcher);
bufferSwitcher.updateBufferList();
revalidate();
}
}
else if(bufferSwitcher != null)
{
remove(bufferSwitcher);
revalidate();
bufferSwitcher = null;
}
} //}}}
//{{{ handleBufferUpdate() method
@EBHandler
public void handleBufferUpdate(BufferUpdate msg)
{
Buffer _buffer = msg.getBuffer();
if(msg.getWhat() == BufferUpdate.CREATED)
{
if(bufferSwitcher != null)
bufferSwitcher.updateBufferList();
/* When closing the last buffer, the BufferUpdate.CLOSED
* handler doesn't call setBuffer(), because null buffers
* are not supported. Instead, it waits for the subsequent
* 'Untitled' file creation. */
if(buffer.isClosed())
{
// since recentBuffer will be set to the one that
// was closed
recentBuffer = null;
}
}
else if(msg.getWhat() == BufferUpdate.CLOSED)
{
if(bufferSwitcher != null)
bufferSwitcher.updateBufferList();
if(_buffer == buffer)
{
// The closed buffer is the current buffer
Buffer newBuffer = recentBuffer != null ?
recentBuffer : _buffer.getPrev();
if(newBuffer != null && !newBuffer.isClosed())
{
setBuffer(newBuffer);
recentBuffer = newBuffer.getPrev();
}
}
else if(_buffer == recentBuffer)
recentBuffer = null;
Buffer closedBuffer = msg.getBuffer();
if (closedBuffer.isUntitled())
{
// the buffer was a new file so I do not need to keep it's informations
caretsForPath.remove(closedBuffer.getPath());
}
}
else if(msg.getWhat() == BufferUpdate.LOAD_STARTED)
{
if(_buffer == buffer)
{
textArea.setCaretPosition(0);
textArea.getPainter().repaint();
}
}
else if(msg.getWhat() == BufferUpdate.LOADED)
{
if(_buffer == buffer)
{
textArea.repaint();
if(bufferSwitcher != null)
bufferSwitcher.updateBufferList();
if(view.getEditPane() == this)
{
StatusBar status = view.getStatus();
status.updateCaretStatus();
status.updateBufferStatus();
status.updateMiscStatus();
}
loadCaretInfo();
}
}
else if(msg.getWhat() == BufferUpdate.DIRTY_CHANGED)
{
if(_buffer == buffer && bufferSwitcher != null)
{
if(buffer.isDirty())
bufferSwitcher.repaint();
else
bufferSwitcher.updateBufferList();
}
}
else if(msg.getWhat() == BufferUpdate.MARKERS_CHANGED)
{
if(_buffer == buffer)
textArea.getGutter().repaint();
}
else if(msg.getWhat() == BufferUpdate.PROPERTIES_CHANGED)
{
if(_buffer == buffer && buffer.isLoaded())
{
textArea.propertiesChanged();
if(view.getEditPane() == this)
view.getStatus().updateBufferStatus();
}
}
else if(msg.getWhat() == BufferUpdate.SAVED && _buffer == buffer)
{
textArea.propertiesChanged();
}
} //}}}
//}}}
//{{{ StatusHandler class
class StatusHandler implements StatusListener
{
public void statusChanged(org.gjt.sp.jedit.textarea.TextArea textArea, int flag, boolean value)
{
StatusBar status = view.getStatus();
if(status == null)
return;
switch(flag)
{
case OVERWRITE_CHANGED:
status.setMessageAndClear(
jEdit.getProperty("view.status.overwrite-changed",
new Integer[] { value ? 1 : 0 }));
break;
case MULTI_SELECT_CHANGED:
status.setMessageAndClear(
jEdit.getProperty("view.status.multi-changed",
new Integer[] { value ? 1 : 0 }));
break;
case RECT_SELECT_CHANGED:
status.setMessageAndClear(
jEdit.getProperty("view.status.rect-select-changed",
new Integer[] { value ? 1 : 0 }));
break;
}
status.updateMiscStatus();
}
public void bracketSelected(org.gjt.sp.jedit.textarea.TextArea textArea, int line, String text)
{
StatusBar status = view.getStatus();
if(status == null)
return;
status.setMessageAndClear(jEdit.getProperty(
"view.status.bracket",new Object[] {
line, text }));
}
public void narrowActive(org.gjt.sp.jedit.textarea.TextArea textArea)
{
StatusBar status = view.getStatus();
if(status == null)
return;
status.setMessageAndClear(
jEdit.getProperty("view.status.narrow"));
}
} //}}}
//{{{ MarkerHighlight class
class MarkerHighlight extends TextAreaExtension
{
private boolean markerHighlight;
private Color markerHighlightColor;
//{{{ getMarkerHighlightColor() method
public Color getMarkerHighlightColor()
{
return markerHighlightColor;
} //}}}
//{{{ setMarkerHighlightColor() method
public void setMarkerHighlightColor(Color markerHighlightColor)
{
this.markerHighlightColor = markerHighlightColor;
} //}}}
//{{{ isMarkerHighlightEnabled() method
public boolean isMarkerHighlightEnabled()
{
return markerHighlight;
} //}}}
//{{{ isMarkerHighlightEnabled()
public void setMarkerHighlightEnabled(boolean markerHighlight)
{
this.markerHighlight = markerHighlight;
} //}}}
//{{{ paintValidLine() method
@Override
public void paintValidLine(Graphics2D gfx, int screenLine,
int physicalLine, int start, int end, int y)
{
if(isMarkerHighlightEnabled())
{
Buffer buffer = (Buffer)textArea.getBuffer();
if(buffer.getMarkerInRange(start,end) != null)
{
gfx.setColor(getMarkerHighlightColor());
int height = textArea.getPainter().getLineHeight();
gfx.fillRect(0, y, textArea.getGutter().getWidth(), height);
}
}
} //}}}
//{{{ getToolTipText() method
@Override
public String getToolTipText(int x, int y)
{
if(isMarkerHighlightEnabled())
{
int lineHeight = textArea.getPainter().getLineHeight();
if(lineHeight == 0)
return null;
int line = y / lineHeight;
int start = textArea.getScreenLineStartOffset(line);
int end = textArea.getScreenLineEndOffset(line);
if(start == -1 || end == -1)
return null;
Buffer buffer = (Buffer)textArea.getBuffer();
Marker marker = buffer.getMarkerInRange(start,end);
if(marker != null)
{
char shortcut = marker.getShortcut();
if(shortcut == '\0')
return jEdit.getProperty("view.gutter.marker.no-name");
else
{
String[] args = { String.valueOf(shortcut) };
return jEdit.getProperty("view.gutter.marker",args);
}
}
}
return null;
} //}}}
} //}}}
}