Examples of org.eclipse.jface.text.formatter.IContentFormatterExtension

Package org.eclipse.jface.text.formatter

Examples of org.eclipse.jface.text.formatter.IContentFormatterExtension

org.eclipse.jface.text.formatter.IContentFormatterExtension
Extension interface for {@link IContentFormatter}.
Updates the content formatter to be able to pass {@link IFormattingContext}context objects to {@link IFormattingStrategyExtension} objectsoperating in context based mode.
Clients using context based formatting call the method format(IDocument, IFormattingContext) with a properly initialized formatting context.
The formatting context must be set up according to the desired formatting mode:
- For whole document formatting set the property {@link FormattingContextProperties#CONTEXT_DOCUMENT}. This is equivalent to setting {@link FormattingContextProperties#CONTEXT_REGION} with a region spanningthe whole document.
- For multiple region formatting set the property {@link FormattingContextProperties#CONTEXT_REGION}. Note that the content formatter automatically aligns the region to a block selected region, and if the region spans multiple partitions, it also completes eventual partitions covered only partially by the region.
Depending on the registered formatting strategies, more context information must be passed in the formatting context, like e.g. {@link FormattingContextProperties#CONTEXT_PREFERENCES}.
Note that in context based mode the content formatter is fully reentrant, but not thread-safe.
@see IFormattingContext @see FormattingContextProperties @since 3.0

          else {
            setRedraw(false);
          }


          if (fContentFormatter instanceof IContentFormatterExtension) {
            IContentFormatterExtension extension = (IContentFormatterExtension) fContentFormatter;
            IFormattingContext context = new FormattingContext();
            context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.valueOf(formatDocument));
            context.setProperty(FormattingContextProperties.CONTEXT_REGION, region);
            extension.format(document, context);
          }
          else {
            fContentFormatter.format(document, region);
          }
        }
        finally {
          try {
            if (rewriteSession != null) {
              IDocumentExtension4 extension = (IDocumentExtension4) document;
              extension.stopRewriteSession(rewriteSession);
            }
            else {
              setRedraw(true);
            }
          }
          finally {
            // end recording
            selection = getTextWidget().getSelection();
            cursorPosition = selection.x;
            selectionLength = selection.y - selection.x;
            endRecording(cursorPosition, selectionLength);
          }
        }
        break;
      case FORMAT_ACTIVE_ELEMENTS :
        rewriteSession = null;
        document = getDocument();
        try {
          /*
           * This command will format the node at cursor position
           * (and all its children)
           */
          // begin recording
          beginRecording(FORMAT_ACTIVE_ELEMENTS_TEXT, FORMAT_ACTIVE_ELEMENTS_TEXT, cursorPosition, selectionLength);
          IRegion region = null;
          Point s = getSelectedRange();
          if (s.y > -1) {
            // only format node at cursor position
            region = new Region(s.x, s.y);
          }


          if (document instanceof IDocumentExtension4) {
            IDocumentExtension4 extension = (IDocumentExtension4) document;
            DocumentRewriteSessionType type = (selection.y == 0 || selection.y > MAX_SMALL_FORMAT_LENGTH) ? DocumentRewriteSessionType.UNRESTRICTED : DocumentRewriteSessionType.UNRESTRICTED_SMALL;
            rewriteSession = (extension.getActiveRewriteSession() != null) ? null : extension.startRewriteSession(type);
          }
          else {
            setRedraw(false);
          }


          if (fContentFormatter instanceof IContentFormatterExtension) {
            IContentFormatterExtension extension = (IContentFormatterExtension) fContentFormatter;
            IFormattingContext context = new FormattingContext();
            context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.FALSE);
            context.setProperty(FormattingContextProperties.CONTEXT_REGION, region);
            extension.format(getDocument(), context);
          }
          else {
            fContentFormatter.format(getDocument(), region);
          }
        }
        finally {
          try {
            if (rewriteSession != null) {
              IDocumentExtension4 extension = (IDocumentExtension4) document;
              extension.stopRewriteSession(rewriteSession);
            }
            else {
              setRedraw(true);
            }
          }

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          else {
            setRedraw(false);
          }


          if (fContentFormatter instanceof IContentFormatterExtension) {
            IContentFormatterExtension extension = (IContentFormatterExtension) fContentFormatter;
            IFormattingContext context = new FormattingContext();
            context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.valueOf(formatDocument));
            context.setProperty(FormattingContextProperties.CONTEXT_REGION, region);
            extension.format(document, context);
          }
          else {
            fContentFormatter.format(document, region);
          }
        }
        finally {
          try {
            if (rewriteSession != null) {
              IDocumentExtension4 extension = (IDocumentExtension4) document;
              extension.stopRewriteSession(rewriteSession);
            }
            else {
              setRedraw(true);
            }
          }
          finally {
            // end recording
            selection = getTextWidget().getSelection();
            cursorPosition = selection.x;
            selectionLength = selection.y - selection.x;
            endRecording(cursorPosition, selectionLength);
          }
        }
        break;
      case FORMAT_ACTIVE_ELEMENTS :
        rewriteSession = null;
        document = getDocument();
        try {
          /*
           * This command will format the node at cursor position
           * (and all its children)
           */
          // begin recording
          beginRecording(FORMAT_ACTIVE_ELEMENTS_TEXT, FORMAT_ACTIVE_ELEMENTS_TEXT, cursorPosition, selectionLength);
          IRegion region = null;
          Point s = getSelectedRange();
          if (s.y > -1) {
            // only format node at cursor position
            region = new Region(s.x, s.y);
          }


          if (document instanceof IDocumentExtension4) {
            IDocumentExtension4 extension = (IDocumentExtension4) document;
            DocumentRewriteSessionType type = (selection.y == 0 || selection.y > MAX_SMALL_FORMAT_LENGTH) ? DocumentRewriteSessionType.UNRESTRICTED : DocumentRewriteSessionType.UNRESTRICTED_SMALL;
            rewriteSession = (extension.getActiveRewriteSession() != null) ? null : extension.startRewriteSession(type);
          }
          else {
            setRedraw(false);
          }


          if (fContentFormatter instanceof IContentFormatterExtension) {
            IContentFormatterExtension extension = (IContentFormatterExtension) fContentFormatter;
            IFormattingContext context = new FormattingContext();
            context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.FALSE);
            context.setProperty(FormattingContextProperties.CONTEXT_REGION, region);
            extension.format(getDocument(), context);
          }
          else {
            fContentFormatter.format(getDocument(), region);
          }
        }
        finally {
          try {
            if (rewriteSession != null) {
              IDocumentExtension4 extension = (IDocumentExtension4) document;
              extension.stopRewriteSession(rewriteSession);
            }
            else {
              setRedraw(true);
            }
          }

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            final String rememberedContents= document.get();


            try {


              if (fContentFormatter instanceof IContentFormatterExtension) {
                final IContentFormatterExtension extension= (IContentFormatterExtension) fContentFormatter;
                context= createFormattingContext();
                if (selection.y == 0) {
                  context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.TRUE);
                } else {
                  context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.FALSE);
                  context.setProperty(FormattingContextProperties.CONTEXT_REGION, new Region(selection.x, selection.y));
                }
                extension.format(document, context);
              } else {
                IRegion r;
                if (selection.y == 0) {
                  IRegion coverage= getModelCoverage();
                  r= coverage == null ? new Region(0, 0) : coverage;
                } else {
                  r= new Region(selection.x, selection.y);
                }
                fContentFormatter.format(document, r);
              }


              updateSlaveDocuments(document);


            } catch (RuntimeException x) {
              // fire wall for https://bugs.eclipse.org/bugs/show_bug.cgi?id=47472
              // if something went wrong we undo the changes we just did
              // TODO to be removed after 3.0 M8
              document.set(rememberedContents);
              throw x;
            }


          } finally {


            if (document instanceof IDocumentExtension4) {
              IDocumentExtension4 extension= (IDocumentExtension4) document;
              extension.stopRewriteSession(rewriteSession);
            } else {
              target.endCompoundChange();
              setRedraw(true);
            }

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            final String rememberedContents= document.get();


            try {


              if (fContentFormatter instanceof IContentFormatterExtension) {
                final IContentFormatterExtension extension= (IContentFormatterExtension) fContentFormatter;
                context= createFormattingContext();
                if (selection.y == 0) {
                  context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.TRUE);
                } else {
                  context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.FALSE);
                  context.setProperty(FormattingContextProperties.CONTEXT_REGION, new Region(selection.x, selection.y));
                }
                extension.format(document, context);
              } else {
                IRegion r;
                if (selection.y == 0) {
                  IRegion coverage= getModelCoverage();
                  r= coverage == null ? new Region(0, 0) : coverage;
                } else {
                  r= new Region(selection.x, selection.y);
                }
                fContentFormatter.format(document, r);
              }


              updateSlaveDocuments(document);


            } catch (RuntimeException x) {
              // fire wall for https://bugs.eclipse.org/bugs/show_bug.cgi?id=47472
              // if something went wrong we undo the changes we just did
              // TODO to be removed after 3.0 M8
              document.set(rememberedContents);
              throw x;
            }


          } finally {


            if (document instanceof IDocumentExtension4) {
              IDocumentExtension4 extension= (IDocumentExtension4) document;
              extension.stopRewriteSession(rewriteSession);
            } else {
              target.endCompoundChange();
              setRedraw(true);
            }

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            final String rememberedContents= document.get();


            try {


              if (fContentFormatter instanceof IContentFormatterExtension) {
                final IContentFormatterExtension extension= (IContentFormatterExtension) fContentFormatter;
                context= createFormattingContext();
                if (selection.y == 0) {
                  context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.TRUE);
                } else {
                  context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.FALSE);
                  context.setProperty(FormattingContextProperties.CONTEXT_REGION, new Region(selection.x, selection.y));
                }
                extension.format(document, context);
              } else {
                IRegion r;
                if (selection.y == 0) {
                  IRegion coverage= getModelCoverage();
                  r= coverage == null ? new Region(0, 0) : coverage;
                } else {
                  r= new Region(selection.x, selection.y);
                }
                fContentFormatter.format(document, r);
              }


              updateSlaveDocuments(document);


            } catch (RuntimeException x) {
              // fire wall for https://bugs.eclipse.org/bugs/show_bug.cgi?id=47472
              // if something went wrong we undo the changes we just did
              // TODO to be removed after 3.0 M8
              document.set(rememberedContents);
              throw x;
            }


          } finally {


            if (document instanceof IDocumentExtension4) {
              IDocumentExtension4 extension= (IDocumentExtension4) document;
              extension.stopRewriteSession(rewriteSession);
            } else {
              target.endCompoundChange();
              setRedraw(true);
            }

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          region = new Region(cursorPosition, selectionLength);
        } else {
          region = new Region(0, getDocument().getLength());
        }
        if (fContentFormatter instanceof IContentFormatterExtension) {
          IContentFormatterExtension extension = (IContentFormatterExtension) fContentFormatter;
          IFormattingContext context = new FormattingContext();
          context.setProperty(
              FormattingContextProperties.CONTEXT_DOCUMENT,
              Boolean.TRUE);
          context.setProperty(
              FormattingContextProperties.CONTEXT_REGION, region);
          extension.format(getDocument(), context);
        } else {
          fContentFormatter.format(getDocument(), region);
        }
      } finally {
        // end recording

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