@Override
public Point computeSizeConstraints(final int widthInChars, final int heightInChars) {
final GC gc = new GC(fContentComposite);
gc.setFont(JFaceResources.getDialogFont());
final int titleWidth = gc.getFontMetrics().getAverageCharWidth() * widthInChars;
final int titleHeight = fTitleText.getLineHeight();
gc.dispose();
final int infoWidth = LayoutUtil.hintWidth(fInfoText, PREF_DETAIL_PANE_FONT, widthInChars);
final int infoHeight = fInfoText.getLineHeight() * (heightInChars);
return new Point(
Math.max(titleWidth, infoWidth), titleHeight + LayoutUtil.defaultVSpacing() + infoHeight);
}
/**
* Convert mouse screen coordinates to a <code>StyledText</code> offset.
*
* @param x screen X-coordinate
* @param y screen Y-coordinate
* @param absolute if <code>true</code>, coordinates are expected to be absolute screen
* coordinates
* @return text offset
* @see StyledText#getOffsetAtLocation()
*/
private int getOffsetAtLocation(int x, int y, boolean absolute) {
StyledText textWidget = fViewer.getTextWidget();
StyledTextContent content = textWidget.getContent();
Point location;
if (absolute) {
location = textWidget.toControl(x, y);
} else {
location = new Point(x, y);
}
int line = (textWidget.getTopPixel() + location.y) / textWidget.getLineHeight();
if (line >= content.getLineCount()) {
return content.getCharCount();
}
int lineOffset = content.getOffsetAtLine(line);
String lineText = content.getLine(line);
Point endOfLine = textWidget.getLocationAtOffset(lineOffset + lineText.length());
if (location.x >= endOfLine.x) {
return lineOffset + lineText.length();
}
try {
return textWidget.getOffsetAtLocation(location);
} catch (IllegalArgumentException iae) {
// we are expecting this
return -1;
}
}
/**
* Hook to compute the menu location if the focus widget is a styled text widget.
*
* @param text the styled text widget that has the focus
* @return a widget relative position of the menu to pop up or <code>null</code> if now position
* inside the widget can be computed
*/
protected Point computeMenuLocation(StyledText text) {
int offset = text.getCaretOffset();
Point result = text.getLocationAtOffset(offset);
result.y += text.getLineHeight(offset);
if (!text.getClientArea().contains(result)) return null;
return result;
}
protected void refreshCaret(StyledText text, int newOffset) {
if (newOffset != -1) {
Point newPos = text.getLocationAtOffset(newOffset);
int newHeight = text.getLineHeight(newOffset);
text.redraw(newPos.x, newPos.y, CARET_WIDTH, newHeight, false);
}
}
private void scrollToCaret() {
int caretOffset = currentText.getCaretOffset();
int lineIndex = currentText.getLineAtOffset(caretOffset);
int lineHeight = currentText.getLineHeight();
int linesVisible = currentText.getSize().y / lineHeight;
int lineMiddle = linesVisible / 2;
int lineTop = lineIndex - lineMiddle;
if (lineTop < 0) lineTop = 0;
currentText.setTopIndex(lineTop);
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.jface.fieldassist.IControlContentAdapter#getInsertionBounds(org.eclipse
* .swt.widgets.Control)
*/
@Override
public Rectangle getInsertionBounds(Control control) {
StyledText text = (StyledText) control;
Point caretOrigin = text.getLocationAtOffset(text.getCaretOffset());
return new Rectangle(
caretOrigin.x + text.getClientArea().x,
caretOrigin.y + text.getClientArea().y + 3,
1,
text.getLineHeight());
}
void drawLine(int lno) {
if (lno < 0 || lno >= text.getLineCount()) return;
int y = text.getLocationAtOffset(text.getOffsetAtLine(lno)).y;
int height = 0;
if (text.getLineCount() > lno + 1)
height = text.getLocationAtOffset(text.getOffsetAtLine(lno + 1)).y - y;
else height = text.getLocationAtOffset(text.getCharCount()).y + text.getLineHeight();
int width = text.getClientArea().width + text.getHorizontalPixel();
text.redraw(0, y, width, height, false);
}
void updateViewport() {
baseEditor.lineCountEvent(text.getLineCount());
int start = 0;
try {
start = text.getTopIndex() - 1;
} catch (Exception e) {
e.printStackTrace(System.out);
}
if (start < 0) start = 0;
int end = start + text.getClientArea().height / text.getLineHeight();
baseEditor.visibleTextEvent(start, end - start + 2);
}
private synchronized void adjustOther(StyledText source, StyledText other) {
if (source == null) source = this.source;
if (other == null) other = this.other;
if (source == null) {
logWriter.println("WARNING: attempting to adjust source but no source StyledText");
return;
}
if (other == null) {
logWriter.println("WARNING: attempting to adjust other but no other StyledText");
return;
}
int caretOffset = source.getCaretOffset();
int lineIndex = source.getLineAtOffset(caretOffset);
int otherLineHeight = other.getLineHeight();
int otherLineRealPixel = lineIndex * otherLineHeight;
int sourceLinePixel = source.getLinePixel(lineIndex);
int otherTopPixel = otherLineRealPixel - sourceLinePixel;
int otherHeight = other.getClientArea().height;
int otherLineBelow = otherHeight - (sourceLinePixel + otherLineHeight);
int otherLineCount = other.getLineCount();
int otherLinesBelow = otherLineCount - lineIndex;
int otherLinesBelowHeight = otherLinesBelow * otherLineHeight;
int otherBottomGap = otherHeight - (sourceLinePixel + otherLinesBelowHeight);
// other would have to scroll before first line
if (otherTopPixel < 0) {
int sourceTopPixel = source.getTopPixel() - otherTopPixel;
otherTopPixel = 0;
source.setTopPixel(sourceTopPixel);
}
// other line would be partially past the bottom of view
else if (otherLineBelow < 0) {
int sourceTopPixel = source.getTopPixel() - otherLineBelow;
otherTopPixel -= otherLineBelow;
source.setTopPixel(sourceTopPixel);
}
// other would have to scroll past last line
else if (otherBottomGap > 0) {
int sourceTopPixel = source.getTopPixel() - otherBottomGap;
otherTopPixel -= otherBottomGap;
source.setTopPixel(sourceTopPixel);
}
other.setTopPixel(otherTopPixel);
redraw();
}
@Override
public Point computeSizeHint() {
updateInput();
final Point sizeConstraints = getSizeConstraints();
final Rectangle trim = computeTrim();
// int charWidth = 20;
// if (fInput.detailInfo != null) {
// final int count = Math.min(6, fInfoText.getLineCount());
// for (int i = 0; i < count; i++) {
// charWidth = Math.max(charWidth, fInfoText.getLine(i).length());
// }
// }
int widthHint =
fInfoText.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x + LayoutUtil.defaultHSpacing();
final int widthMax2 = LayoutUtil.hintWidth(fInfoText, PREF_DETAIL_PANE_FONT, 80);
final int widthMax =
((sizeConstraints != null && sizeConstraints.x != SWT.DEFAULT)
? sizeConstraints.x
: widthMax2)
- trim.width;
fLayoutHint = true;
final int titleHint =
LayoutUtil.defaultHMargin()
+ fTitleImage.getSize().x
+ LayoutUtil.defaultHSpacing()
+ fTitleText.computeSize(SWT.DEFAULT, SWT.DEFAULT).x;
fLayoutHint = false;
if (titleHint > widthHint && widthMax2 > widthHint) {
widthHint = Math.min(widthMax2, titleHint);
}
if (widthMax < widthHint) {
widthHint = widthMax;
}
// avoid change of wrapping caused by scrollbar
if (widthHint < titleHint && widthHint + fInfoText.computeTrim(0, 0, 0, 0).width >= titleHint) {
widthHint = titleHint;
}
final int heightMax =
((sizeConstraints != null && sizeConstraints.y != SWT.DEFAULT)
? sizeConstraints.y
: fInfoText.getLineHeight() * 12)
- trim.height;
final Point size = fContentComposite.computeSize(widthHint, SWT.DEFAULT, true);
size.y += LayoutUtil.defaultVSpacing();
size.x = Math.max(Math.min(size.x, widthMax), 200) + trim.width;
size.y = Math.max(Math.min(size.y, heightMax), 100) + trim.height;
return size;
}
/*
* @see org.eclipse.jface.text.source.AnnotationPainter.IDrawingStrategy#draw(org.eclipse.swt.graphics.GC, org.eclipse.swt.custom.StyledText, int, int, org.eclipse.swt.graphics.Color)
*/
public void draw(
Annotation annotation, GC gc, StyledText textWidget, int offset, int length, Color color) {
if (annotation instanceof ProjectionAnnotation) {
ProjectionAnnotation projectionAnnotation = (ProjectionAnnotation) annotation;
if (projectionAnnotation.isCollapsed()) {
if (gc != null) {
StyledTextContent content = textWidget.getContent();
int line = content.getLineAtOffset(offset);
int lineStart = content.getOffsetAtLine(line);
String text = content.getLine(line);
int lineLength = text == null ? 0 : text.length();
int lineEnd = lineStart + lineLength;
Point p = textWidget.getLocationAtOffset(lineEnd);
Color c = gc.getForeground();
gc.setForeground(color);
FontMetrics metrics = gc.getFontMetrics();
// baseline: where the dots are drawn
int baseline = textWidget.getBaseline(offset);
// descent: number of pixels that the box extends over baseline
int descent = Math.min(2, textWidget.getLineHeight(offset) - baseline);
// ascent: so much does the box stand up from baseline
int ascent = metrics.getAscent();
// leading: free space from line top to box upper line
int leading = baseline - ascent;
// height: height of the box
int height = ascent + descent;
int width = metrics.getAverageCharWidth();
gc.drawRectangle(p.x, p.y + leading, width, height);
int third = width / 3;
int dotsVertical = p.y + baseline - 1;
gc.drawPoint(p.x + third, dotsVertical);
gc.drawPoint(p.x + width - third, dotsVertical);
gc.setForeground(c);
} else {
textWidget.redrawRange(offset, length, true);
}
}
}
}
private Point computeWordStart() {
ITextSelection selection = (ITextSelection) fEditor.getSelectionProvider().getSelection();
IRegion textRegion =
CWordFinder.findWord(fEditor.getViewer().getDocument(), selection.getOffset());
if (textRegion == null) return null;
IRegion widgetRegion = modelRange2WidgetRange(textRegion);
if (widgetRegion == null) return null;
int start = widgetRegion.getOffset();
StyledText styledText = fEditor.getViewer().getTextWidget();
Point result = styledText.getLocationAtOffset(start);
result.y += styledText.getLineHeight(start);
if (!styledText.getClientArea().contains(result)) return null;
return result;
}
@Override
public void paintControl(PaintEvent event) {
/* Using event.gc.getFontMetrics().getAverageCharWidth()) was not
enough on low resolutions, as the rounding to an int seemed
enough to screw up the right margin, even when using a
monospaced font (this is the current theory).
*/
if (charsPerLine != getCharsPerLine()) {
charsPerLine = getCharsPerLine();
char buffer[] = new char[charsPerLine];
for (int i = 0; i < charsPerLine; i++) buffer[i] = 'm';
rightMargin = event.gc.stringExtent(new String(buffer)).x;
}
int lineHeight = source.getLineHeight();
int drawHeight = source.getClientArea().height;
int drawWidth = source.getClientArea().width;
event.gc.setForeground(color);
event.gc.setBackground(color);
// draw right margin
event.gc.drawLine(rightMargin, 0, rightMargin, drawHeight);
for (int i = source.getTopIndex(); i < source.getLineCount(); i++) {
// draw page lines
int at = source.getLinePixel(i);
if (isFirstLineOnPage(i)) event.gc.drawLine(0, at, drawWidth, at);
// draw paragraph end markers
String line = source.getLine(i);
if (line.length() > 0 && line.charAt(line.length() - 1) == PARAGRAPH_END) {
Point point = event.gc.stringExtent(line);
int span = point.y / 2;
event.gc.fillOval(point.x + span / 2, at + span / 2, span, span);
}
// check if line still visible
if (at + lineHeight > drawHeight) break;
}
adjustOtherThread.notifyPainted(source);
}
@Override
public void caretMoved(CaretEvent ignored) {
int caretOffset = source.getCaretOffset();
int lineIndex = source.getLineAtOffset(caretOffset);
int lineOffset = source.getOffsetAtLine(lineIndex);
// play line margin bell
if (lineMarginClip != null && lineMarginBell > 0 && caretOffset == prevCaretOffset + 1) {
if (caretOffset - lineOffset == lineMarginBell)
if (!lineMarginClip.isActive()) {
lineMarginClip.setFramePosition(0);
lineMarginClip.start();
}
}
// play line end bell
if (lineEndClip != null && charsPerLine > 0 && caretOffset == prevCaretOffset + 1) {
if (caretOffset - lineOffset == charsPerLine)
if (!lineEndClip.isActive()) {
lineEndClip.setFramePosition(0);
lineEndClip.start();
}
}
prevCaretOffset = caretOffset;
// scroll other text to match current
if (lineIndex == prevLineIndex) return;
prevLineIndex = lineIndex;
if (source != currentText) return;
int sourceLinePixel = source.getLinePixel(lineIndex);
int sourceHeight = source.getClientArea().height;
int sourceLineHeight = source.getLineHeight();
// check if have to wait until after paint event
if (sourceLinePixel < 0 || sourceLinePixel + sourceLineHeight > sourceHeight)
adjustOtherThread.waitPainted(source, other);
else adjustOtherThread.adjustOther(source, other);
}
private Rectangle getLineRectangle(Position position) {
if (position == null) {
return null;
}
// if the position that is about to be drawn was deleted then we can't
if (position.isDeleted()) {
return null;
}
int widgetOffset = 0;
if (fViewer instanceof ITextViewerExtension5) {
ITextViewerExtension5 extension = (ITextViewerExtension5) fViewer;
widgetOffset = extension.modelOffset2WidgetOffset(position.getOffset());
if (widgetOffset == -1) {
return null;
}
} else {
IRegion visible = fViewer.getVisibleRegion();
widgetOffset = position.getOffset() - visible.getOffset();
if (widgetOffset < 0 || visible.getLength() < widgetOffset) {
return null;
}
}
StyledText textWidget = fViewer.getTextWidget();
// check for https://bugs.eclipse.org/bugs/show_bug.cgi?id=64898
// this is a guard against the symptoms but not the actual solution
if (0 <= widgetOffset && widgetOffset <= textWidget.getCharCount()) {
Point upperLeft = textWidget.getLocationAtOffset(widgetOffset);
int width = textWidget.getClientArea().width + textWidget.getHorizontalPixel();
int height = textWidget.getLineHeight(widgetOffset);
return new Rectangle(0, upperLeft.y, width, height);
}
return null;
}
public int getVerticalScrollOffset() {
StyledText st = getSourceViewer().getTextWidget();
int lineHeight = st.getLineHeight();
return getSourceViewer().getTopInset()
- ((getDocumentRegionOffset() * lineHeight) + st.getTopPixel());
}
public int getViewportLines() {
StyledText te = getSourceViewer().getTextWidget();
Rectangle clArea = te.getClientArea();
if (!clArea.isEmpty()) return clArea.height / te.getLineHeight();
return 0;
}
@Override
protected Control createDialogArea(Composite parent) {
setTitle((templatePersistenceData == null ? "Create a new" : "Modify the") + " Code Clip");
Composite parentComposite = (Composite) super.createDialogArea(parent);
GridLayout gridLayout = (GridLayout) parentComposite.getLayout();
gridLayout.numColumns = 2; // 3;
gridLayout.makeColumnsEqualWidth = false;
GridData layoutData = (GridData) parentComposite.getChildren()[0].getLayoutData();
layoutData.horizontalSpan = 2; // 3;
gridLayout.marginWidth = 10;
gridLayout.marginHeight = 10;
gridLayout.horizontalSpacing = 5;
gridLayout.verticalSpacing = 5;
Label abbrevLabel = new Label(parentComposite, SWT.NONE);
abbrevLabel.setText("Abbreviation: ");
GridData abbrevLabelGridData = new GridData(SWT.LEFT, SWT.CENTER, false, false);
abbrevLabel.setLayoutData(abbrevLabelGridData);
Label descriptionLabel = new Label(parentComposite, SWT.NONE);
descriptionLabel.setText("Description:");
GridData descriptionLabelGridData = new GridData(SWT.FILL, SWT.CENTER, true, false);
descriptionLabel.setLayoutData(descriptionLabelGridData);
// Label contentTypeLabel = new Label(parentComposite, SWT.NONE);
// contentTypeLabel.setText("Content Type:");
// GridData contentTypeLabelGridData = new GridData(SWT.LEFT, SWT.CENTER, false, false);
// contentTypeLabel.setLayoutData(contentTypeLabelGridData);
abbrevText = new Text(parentComposite, SWT.SINGLE | SWT.BORDER);
abbrevText.setText(abbrev);
abbrevText.setEditable(templatePersistenceData == null);
GridData abbrevTextGridData = new GridData(SWT.FILL, SWT.CENTER, false, false);
abbrevText.setLayoutData(abbrevTextGridData);
abbrevText.addModifyListener(
new ModifyListener() {
public void modifyText(ModifyEvent e) {
validateAbbrev();
}
});
descriptionText = new Text(parentComposite, SWT.SINGLE | SWT.BORDER);
descriptionText.setText(description);
GridData descriptionTextGridData = new GridData(SWT.FILL, SWT.CENTER, true, false);
descriptionText.setLayoutData(descriptionTextGridData);
// contentTypeText = new Text(parentComposite, SWT.SINGLE | SWT.BORDER);
// contentTypeText.setText(contentType);
// contentTypeText.setEditable(false);
// GridData contentTypeTextGridData = new GridData(SWT.FILL, SWT.CENTER, false, false);
// contentTypeText.setLayoutData(contentTypeTextGridData);
Label expansionLabel = new Label(parentComposite, SWT.NONE);
expansionLabel.setText("Expansion:");
GridData expansionLabelGridData = new GridData(SWT.LEFT, SWT.CENTER, false, false);
expansionLabelGridData.horizontalSpan = 2; // 3;
expansionLabel.setLayoutData(expansionLabelGridData);
expansionText =
new StyledText(parentComposite, SWT.MULTI | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
expansionText.setText(expansion);
expansionText.setFont(JFaceResources.getFontRegistry().get(JFaceResources.TEXT_FONT));
GridData styledTextGridData = new GridData(SWT.FILL, SWT.FILL, true, true);
styledTextGridData.heightHint = expansionText.getLineHeight() * 8;
styledTextGridData.horizontalSpan = 2; // 3;
expansionText.setLayoutData(styledTextGridData);
if (templatePersistenceData == null) {
abbrevText.setFocus();
} else {
descriptionText.setFocus();
}
return parentComposite;
}
