/**
* Returns the current vertical cursor position.
*
* @return new position
*/
int cursorY() {
final int hh = h;
h = Integer.MAX_VALUE;
final Graphics g = getGraphics();
init(g, 0);
while (more(g) && !text.edited()) next();
h = hh;
return y - fontH;
}
/** Calculates the text height. */
void calc() {
w = getWidth() - (off >> 1);
h = Integer.MAX_VALUE;
final Graphics g = getGraphics();
init(g, 0);
while (more(g)) next();
h = getHeight() + fontH;
bar.height(y + off);
}
@Override
public Dimension getPreferredSize() {
final Graphics g = getGraphics();
w = Integer.MAX_VALUE;
h = Integer.MAX_VALUE;
init(g, 0);
int max = 0;
while (more(g)) {
if (text.curr() == 0x0A) max = Math.max(x, max);
next();
}
return new Dimension(Math.max(x, max) + fwidth[' '], y + fontH);
}
/**
* 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();
}
/**
* Finds the current keyword and returns the text position.
*
* @param forward backward browsing
* @param same string is the same as last time
* @return new position
*/
int find(final boolean forward, final boolean same) {
if (keyword.isEmpty()) return 0;
while (true) {
final int hh = h;
int lp = 0;
int ly = 0;
int cp = text.cursor();
h = Integer.MAX_VALUE;
final Graphics g = getGraphics();
for (init(g, 0); more(g); next()) {
if (!found()) continue;
final int np = text.pos();
final int ny = y - fontH;
if (np >= cp && (np > cp || !same || !forward)) {
if (forward || lp != 0) {
h = hh;
text.setCaret(forward ? np : lp);
return forward ? ny : ly;
}
cp = Integer.MAX_VALUE;
}
lp = np;
ly = ny;
}
h = hh;
if (cp == 0 || cp == Integer.MAX_VALUE) {
text.setCaret(lp);
return ly;
}
text.setCaret(0);
}
}
/**
* 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();
}
