/**
* Checks if the text has more words to print.
*
* @param g graphics reference
* @return true if the text has more words
*/
private boolean more(final Graphics g) {
// no more words found; quit
if (!text.moreWords()) return false;
// calculate word width
int ww = 0;
final int p = text.pos();
while (text.more()) {
final int ch = text.next();
// internal special codes...
if (ch == 0x02) {
font(bfont);
} else if (ch == 0x03) {
font(dfont);
} else {
ww += charW(g, ch);
}
}
text.pos(p);
// jump to new line
if (x + ww > w) {
x = off;
y += fontH;
}
wordW = ww;
// check if word has been found, and word is still visible
return y < h;
}
/**
* Returns the cursor coordinates.
*
* @return line/column
*/
int[] pos() {
final int hh = h;
h = Integer.MAX_VALUE;
final Graphics g = getGraphics();
int col = 1;
int line = 1;
init(g, 0);
boolean more = true;
while (more(g)) {
final int p = text.pos();
while (text.more()) {
more = text.pos() < text.cursor();
if (!more) break;
text.next();
col++;
}
if (!more) break;
text.pos(p);
if (next()) {
line++;
col = 1;
}
}
h = hh;
return new int[] {line, col};
}
/**
* Selects the text at the specified position.
*
* @param pos current text position
* @param p mouse position
* @param finish states if selection is in progress
*/
void select(final int pos, final Point p, final boolean finish) {
if (!finish) text.noMark();
p.y -= 3;
final Graphics g = getGraphics();
init(g, pos);
if (p.y > y - fontH) {
int s = text.pos();
while (true) {
// end of line
if (p.x > x && p.y < y - fontH) {
text.pos(s);
break;
}
// end of text - skip last characters
if (!more(g)) {
while (text.more()) text.next();
break;
}
// beginning of line
if (p.x <= x && p.y < y) break;
// middle of line
if (p.x > x && p.x <= x + wordW && p.y > y - fontH && p.y <= y) {
while (text.more()) {
final int ww = charW(g, text.curr());
if (p.x < x + ww) break;
x += ww;
text.next();
}
break;
}
s = text.pos();
next();
}
if (!finish) text.startMark();
else text.endMark();
text.setCaret();
}
repaint();
}
/**
* Writes the current string to the graphics reference.
*
* @param g graphics reference
*/
private void write(final Graphics g) {
if (high) {
high = false;
} else {
color = isEnabled() ? syntax.getColor(text) : Color.gray;
}
final int ch = text.curr();
if (y > 0 && y < h) {
if (ch == TokenBuilder.MARK) {
color = GUIConstants.GREEN;
high = true;
}
// mark error
if (text.erroneous()) {
g.setColor(GUIConstants.LRED);
g.fillRect(x, y - fontH + 4, wordW, fontH);
}
// mark text
int xx = x;
if (text.markStart()) {
final int p = text.pos();
while (text.more()) {
final int cw = charW(g, text.curr());
if (text.inMark()) {
g.setColor(GUIConstants.color(3));
g.fillRect(xx, y - fontH + 4, cw, fontH);
}
xx += cw;
text.next();
}
text.pos(p);
}
if (found()) {
int cw = 0;
for (int c = 0; c < keyword.length(); ++c) {
cw += charW(g, keyword.charAt(c));
}
g.setColor(GUIConstants.color(text.cursor() == text.pos() ? 5 : 2));
g.fillRect(x, y - fontH + 4, cw, fontH);
}
// don't write whitespaces
if (ch > ' ') {
g.setColor(color);
String n = text.nextWord();
int ww = w - x;
if (x + wordW > ww) {
// shorten string if it cannot be completely shown (saves memory)
int c = 0;
for (final int nl = n.length(); c < nl && ww > 0; c++) {
ww -= charW(g, n.charAt(c));
}
n = n.substring(0, c);
}
g.drawString(n, x, y);
} else if (ch <= TokenBuilder.MARK) {
g.setFont(font);
}
// show cursor
if (cursor && text.edited()) {
xx = x;
final int p = text.pos();
while (text.more()) {
if (text.cursor() == text.pos()) {
cursor(g, xx);
break;
}
xx += charW(g, text.next());
}
text.pos(p);
}
}
next();
}
