/**
* search next text
*
* @param widgetText text widget
* @param widgetFind search text widget
*/
private void findNext(StyledText widgetText, Text widgetFind) {
if (!widgetText.isDisposed()) {
String findText = widgetFind.getText().toLowerCase();
if (!findText.isEmpty()) {
// get cursor position
int cursorIndex = widgetText.getCaretOffset();
// search
int offset = -1;
if (cursorIndex >= 0) {
String text = widgetText.getText();
offset =
(cursorIndex + 1 < text.length())
? text.substring(cursorIndex + 1).toLowerCase().indexOf(findText)
: -1;
}
if (offset >= 0) {
int index = cursorIndex + 1 + offset;
widgetText.setCaretOffset(index);
widgetText.setSelection(index);
widgetText.redraw();
int topIndex = widgetText.getTopIndex();
widgetLineNumbers.setTopIndex(topIndex);
widgetVerticalScrollBar.setSelection(topIndex);
} else {
Widgets.flash(widgetFind);
}
}
}
}
@Override
public void scrollDown(boolean wholeScreen) {
int topLine = commandLineText.getTopIndex();
if (wholeScreen) {
int bottomLine = commandLineText.getLineIndex(commandLineText.getBounds().y - 1);
int nLines = bottomLine - topLine;
commandLineText.setTopIndex(topLine + nLines);
} else {
// For some reason, getTopIndex() seems to return the second fully shown line... No +1
commandLineText.setTopIndex(topLine);
}
}
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);
}
@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);
}