Java 类org.eclipse.jface.text.IRewriteTarget 实例源码

@Override
protected boolean doExecuteResult(ITextEditor editor, Object minibufferResult) {
    // use widget to avoid unpleasant scrolling side effects of IRewriteTarget
    Control widget = getTextWidget(editor);
    // wrap in compound change and no redraw
    IRewriteTarget rt = (IRewriteTarget) editor.getAdapter(IRewriteTarget.class);
    try {
        if (rt != null) {
            rt.beginCompoundChange();
        }
        widget.setRedraw(false);
        int offset = rs.updateRectangle(editor, document, selection, (String)minibufferResult, isReplace(),false);
        if (offset > 0) {
            selectAndReveal(editor, offset, offset);
        }
    } finally  {
        if (rt != null) {
            rt.endCompoundChange();
        }
        widget.setRedraw(true);
    }
    return true;
}

private void endCompoundChangeIfNeeded() {
    if (fHasOpenCompoundChange) {
        ITextViewerExtension extension = (ITextViewerExtension) fCurrentTarget.getViewer();
        IRewriteTarget target = extension.getRewriteTarget();
        target.endCompoundChange();
        fHasOpenCompoundChange = false;
    }
}

private void beginCompoundChangeIfNeeded() {
    if (!fHasOpenCompoundChange) {
        ITextViewerExtension extension = (ITextViewerExtension) fCurrentTarget.getViewer();
        IRewriteTarget target = extension.getRewriteTarget();
        target.beginCompoundChange();
        fHasOpenCompoundChange = true;
    }
}

/**
 * Ends the compound change.
 */
private void beginCompoundEdit() {
    ITextViewer viewer= getTextViewer();
    if (fEditInProgress || viewer == null || !(viewer instanceof ITextViewerExtension))
        return;

    fEditInProgress= true;

    fStrategy.arm(viewer);

    IRewriteTarget target= ((ITextViewerExtension) viewer).getRewriteTarget();
    if (target != null) {
        target.beginCompoundChange();
    }
}

/**
 * Ends the compound change.
 */
private void endCompoundEdit() {
    ITextViewer viewer= getTextViewer();
    if (!fEditInProgress || viewer == null || !(viewer instanceof ITextViewerExtension))
        return;

    IRewriteTarget target= ((ITextViewerExtension) viewer).getRewriteTarget();
    if (target != null) {
        target.endCompoundChange();
    }

    fEditInProgress= false;
}

/**
 * Ends the compound change.
 */
public void beginCompoundEdit() {
    if (fEditInProgress || fEditor == null)
        return;

    fEditInProgress= true;

    fExitStrategy.arm(fEditor.getViewer());

    IRewriteTarget target= (IRewriteTarget)fEditor.getAdapter(IRewriteTarget.class);
    if (target != null) {
        target.beginCompoundChange();
    }
}

/**
 * Ends the compound change.
 */
public void endCompoundEdit() {
    if (!fEditInProgress || fEditor == null)
        return;

    fExitStrategy.disarm();

    IRewriteTarget target= (IRewriteTarget)fEditor.getAdapter(IRewriteTarget.class);
    if (target != null) {
        target.endCompoundChange();
    }

    fResult= null;
    fEditInProgress= false;
}

private void doPasteWithImportsOperation() {
    ITextEditor editor= getTextEditor();
    IJavaElement inputElement= JavaUI.getEditorInputTypeRoot(editor.getEditorInput());

    Clipboard clipboard= new Clipboard(getDisplay());
    try {
        ClipboardData importsData= (ClipboardData)clipboard.getContents(fgTransferInstance);
        if (importsData != null && inputElement instanceof ICompilationUnit && !importsData.isFromSame(inputElement)) {
            // combine operation and adding of imports
            IRewriteTarget target= (IRewriteTarget)editor.getAdapter(IRewriteTarget.class);
            if (target != null) {
                target.beginCompoundChange();
            }
            try {
                fOperationTarget.doOperation(fOperationCode);
                addImports((ICompilationUnit)inputElement, importsData);
            } catch (CoreException e) {
                JavaPlugin.log(e);
            } finally {
                if (target != null) {
                    target.endCompoundChange();
                }
            }
        } else {
            fOperationTarget.doOperation(fOperationCode);
        }
    } finally {
        clipboard.dispose();
    }
}

private void endCompoundChange(ITextViewer viewer) {
    if (viewer instanceof ITextViewerExtension) {
        ITextViewerExtension extension= (ITextViewerExtension) viewer;
        IRewriteTarget target= extension.getRewriteTarget();
        target.endCompoundChange();
    }
}

private void beginCompoundChange(ITextViewer viewer) {
    if (viewer instanceof ITextViewerExtension) {
        ITextViewerExtension extension= (ITextViewerExtension) viewer;
        IRewriteTarget target= extension.getRewriteTarget();
        target.beginCompoundChange();
    }
}

private void setRedraw(ITextViewer viewer, boolean redraw) {
if (viewer instanceof ITextViewerExtension) {
    ITextViewerExtension extension= (ITextViewerExtension) viewer;
    IRewriteTarget target= extension.getRewriteTarget();
    target.setRedraw(redraw);
}
  }

/**
 * Ends the compound change.
 */
public void beginCompoundEdit() {
    if (fEditInProgress || fEditor == null)
        return;

    fEditInProgress= true;

    fExitStrategy.arm(fEditor.getViewer());

    IRewriteTarget target= (IRewriteTarget)fEditor.getAdapter(IRewriteTarget.class);
    if (target != null) {
        target.beginCompoundChange();
    }
}

/**
 * Ends the compound change.
 */
public void endCompoundEdit() {
    if (!fEditInProgress || fEditor == null)
        return;

    fExitStrategy.disarm();

    IRewriteTarget target= (IRewriteTarget)fEditor.getAdapter(IRewriteTarget.class);
    if (target != null) {
        target.endCompoundChange();
    }

    fResult= null;
    fEditInProgress= false;
}

private void doPasteWithImportsOperation() {
    ITextEditor editor= getTextEditor();
    IJavaElement inputElement= JavaUI.getEditorInputTypeRoot(editor.getEditorInput());

    Clipboard clipboard= new Clipboard(getDisplay());
    try {
        ClipboardData importsData= (ClipboardData)clipboard.getContents(fgTransferInstance);
        if (importsData != null && inputElement instanceof ICompilationUnit && !importsData.isFromSame(inputElement)) {
            // combine operation and adding of imports
            IRewriteTarget target= (IRewriteTarget)editor.getAdapter(IRewriteTarget.class);
            if (target != null) {
                target.beginCompoundChange();
            }
            try {
                fOperationTarget.doOperation(fOperationCode);
                addImports((ICompilationUnit)inputElement, importsData);
            } catch (CoreException e) {
                JavaPlugin.log(e);
            } finally {
                if (target != null) {
                    target.endCompoundChange();
                }
            }
        } else {
            fOperationTarget.doOperation(fOperationCode);
        }
    } finally {
        clipboard.dispose();
    }
}

private void endCompoundChange(ITextViewer viewer) {
    if (viewer instanceof ITextViewerExtension) {
        ITextViewerExtension extension= (ITextViewerExtension) viewer;
        IRewriteTarget target= extension.getRewriteTarget();
        target.endCompoundChange();
    }
}

private void beginCompoundChange(ITextViewer viewer) {
    if (viewer instanceof ITextViewerExtension) {
        ITextViewerExtension extension= (ITextViewerExtension) viewer;
        IRewriteTarget target= extension.getRewriteTarget();
        target.beginCompoundChange();
    }
}

private void setRedraw(ITextViewer viewer, boolean redraw) {
if (viewer instanceof ITextViewerExtension) {
    ITextViewerExtension extension= (ITextViewerExtension) viewer;
    IRewriteTarget target= extension.getRewriteTarget();
    target.setRedraw(redraw);
}
  }

/**
 * Get the undo Runnable wrappers
 * 
 * @param editor
 * @return begin and end undoProtect wrappers
 */
protected Runnable[] undoProtect(ITextEditor editor, final MacroCount keepCount) {
    Runnable[] result = new Runnable[2];
    // use widget to avoid unpleasant scrolling side effects of IRewriteTarget
    final Control widget = getTextWidget(editor);;
    final IRewriteTarget rt = (IRewriteTarget) editor.getAdapter(IRewriteTarget.class);;
    result[0] = new Runnable() {
        public void run() {
            if (rt != null) {
                rt.beginCompoundChange();
            }
            setRedraw(widget,false);
        }
    };
    result[1] = new Runnable() {
        public void run() {
            setRedraw(widget, true);
            if (rt != null) {
                rt.endCompoundChange();
            }
            if (!isInterrupted() && keepCount != null) {
                // we've finished one more loop of the main macro
                keepCount.addCounter();
            }
        }
    };
    return result;
}

/**
 * @see com.mulgasoft.emacsplus.minibuffer.IMinibufferExecutable#executeResult(org.eclipse.ui.texteditor.ITextEditor, java.lang.Object)
 */
public boolean doExecuteResult(ITextEditor editor, Object minibufferResult) {

    if (minibufferResult != null && ((String)minibufferResult).length() > 0) {
        String key = (String)minibufferResult;
        ITextSelection selection = getImpliedSelection(editor, getCurrentSelection(editor));
        IDocument document = getThisDocument(editor);
        // if called with ^U, then delete text as well
        boolean delete = isEditable() && getCallCount() > 1;
        String[] rect;
        // use widget to avoid unpleasant scrolling side effects of IRewriteTarget          
        Control widget = getTextWidget(editor);
        IRewriteTarget rt = (IRewriteTarget) editor.getAdapter(IRewriteTarget.class);
        try {
            if (delete) {
                // wrap in compound change and no redraw
                widget.setRedraw(false);
                if (rt != null) {
                    rt.beginCompoundChange();
                }
            }
            rect = new RectangleSupport(document,editor).copyRectangle(editor, document, selection, delete);
            if (rect != null && rect.length > 0) {
                TecoRegister.getInstance().put(key,rect);
                showResultMessage(editor, String.format(COPIED, key), false);
            }
        } catch (BadLocationException e) {
            showResultMessage(editor, BAD_INSERT_LOCATION, true);
        } finally  {
            if (rt != null) {
                rt.endCompoundChange();
            }
            widget.setRedraw(true);
        }
    } else {
        showResultMessage(editor, NO_REGISTER, true);
    }
    return true;
}

public IRewriteTarget getRewriteTarget() {
    return viewer.getRewriteTarget();
}