/**
* Draws the specified string.
*
* @param g graphics reference
* @param s text
* @param x x coordinate
* @param y y coordinate
* @param w width
* @param fs font size
*/
public static void chopString(
final Graphics g, final byte[] s, final int x, final int y, final int w, final int fs) {
if (w < 12) return;
final int[] cw = fontWidths(g.getFont());
int j = s.length;
try {
int l = 0;
int fw = 0;
for (int k = 0; k < j; k += l) {
final int ww = width(g, cw, cp(s, k));
if (fw + ww >= w - 4) {
j = Math.max(1, k - l);
if (k > 1) fw -= width(g, cw, cp(s, k - 1));
g.drawString("..", x + fw, y + fs);
break;
}
fw += ww;
l = cl(s, k);
}
} catch (final Exception ex) {
Util.debug(ex);
}
g.drawString(string(s, 0, j), x, y + fs);
}
/**
* Draws a visualization tooltip.
*
* @param g graphics reference
* @param tt tooltip label
* @param x horizontal position
* @param y vertical position
* @param w width
* @param c color color depth
*/
public static void drawTooltip(
final Graphics g, final String tt, final int x, final int y, final int w, final int c) {
final int tw = width(g, tt);
final int th = g.getFontMetrics().getHeight();
final int xx = Math.min(w - tw - 8, x);
g.setColor(color(c));
g.fillRect(xx - 1, y - th, tw + 4, th);
g.setColor(BACK);
g.drawString(tt, xx, y - 4);
}
/**
* Paints the error marker.
*
* @param g graphics reference
*/
private void drawError(final Graphics g) {
final int ww = wordW != 0 ? wordW : charW(g, ' ');
final int s = Math.max(1, fontH / 8);
g.setColor(GUIConstants.LRED);
g.fillRect(x, y + 2, ww, s);
g.setColor(GUIConstants.RED);
for (int xp = x; xp < x + ww; xp++) {
if ((xp & 1) == 0) g.drawLine(xp, y + 2, xp, y + s + 1);
}
}
/**
* Returns the width of the specified codepoint.
*
* @param g graphics reference
* @param cp character
* @return width
*/
private int charW(final Graphics g, final int cp) {
return cp < ' ' || g == null
? cp == '\t' ? fwidth[' '] * BaseXTextTokens.TAB : 0
: cp < 256
? fwidth[cp]
: cp >= 0xD800 && cp <= 0xDC00 ? 0 : g.getFontMetrics().charWidth(cp);
}
/**
* Initializes the renderer.
*
* @param g graphics reference
* @param pos current text position
*/
private void init(final Graphics g, final int pos) {
font = dfont;
color = Color.black;
syntax.init();
text.init();
x = off;
y = off + fontH - pos - 2;
if (g != null) g.setFont(font);
}
/**
* Returns the width of the specified text. Cached font widths are used to speed up calculation.
*
* @param g graphics reference
* @param s string to be evaluated
* @return string width
*/
public static int width(final Graphics g, final byte[] s) {
final int[] cw = fontWidths(g.getFont());
final int l = s.length;
int fw = 0;
try {
// ignore faulty character sets
for (int k = 0; k < l; k += cl(s, k)) fw += width(g, cw, cp(s, k));
} catch (final Exception ex) {
Util.debug(ex);
}
return fw;
}
/**
* Draws a colored cell.
*
* @param g graphics reference
* @param xs horizontal start position
* @param xe horizontal end position
* @param ys vertical start position
* @param ye vertical end position
* @param focus highlighting flag
*/
public static void drawCell(
final Graphics g,
final int xs,
final int xe,
final int ys,
final int ye,
final boolean focus) {
g.setColor(gray);
g.drawRect(xs, ys, xe - xs - 1, ye - ys - 1);
g.setColor(BACK);
g.drawRect(xs + 1, ys + 1, xe - xs - 3, ye - ys - 3);
g.setColor(focus ? lgray : BACK);
g.fillRect(xs + 1, ys + 1, xe - xs - 2, ye - ys - 2);
}
@Override
public void paintComponent(final Graphics g) {
super.paintComponent(g);
final Runtime rt = Runtime.getRuntime();
final long max = rt.maxMemory();
final long total = rt.totalMemory();
final long used = total - rt.freeMemory();
final int ww = getWidth();
final int hh = getHeight();
// draw memory box
g.setColor(Color.white);
g.fillRect(0, 0, ww - 3, hh - 3);
g.setColor(GRAY);
g.drawLine(0, 0, ww - 4, 0);
g.drawLine(0, 0, 0, hh - 4);
g.drawLine(ww - 3, 0, ww - 3, hh - 3);
g.drawLine(0, hh - 3, ww - 3, hh - 3);
// show total memory usage
g.setColor(color1);
g.fillRect(2, 2, Math.max(1, (int) (total * (ww - 6) / max)), hh - 6);
// show current memory usage
final boolean full = used * 6 / 5 > max;
g.setColor(full ? colormark4 : color3);
g.fillRect(2, 2, Math.max(1, (int) (used * (ww - 6) / max)), hh - 6);
// print current memory usage
final FontMetrics fm = g.getFontMetrics();
final String mem = Performance.format(used, true);
final int fw = (ww - fm.stringWidth(mem)) / 2;
final int h = fm.getHeight() - 3;
g.setColor(full ? colormark3 : DGRAY);
g.drawString(mem, fw, h);
}
/**
* Paints the text cursor.
*
* @param g graphics reference
* @param xx x position
*/
private void cursor(final Graphics g, final int xx) {
g.setColor(Color.black);
g.drawLine(xx, y - fontH + 4, xx, y + 3);
}
/**
* 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();
}
/**
* Returns the character width of the specified character.
*
* @param g graphics reference
* @param cw array with character widths
* @param c character
* @return character width
*/
public static int width(final Graphics g, final int[] cw, final int c) {
return c >= cw.length ? g.getFontMetrics().charWidth(c) : cw[c];
}
/**
* Returns the width of the specified text.
*
* @param g graphics reference
* @param s string to be evaluated
* @return string width
*/
public static int width(final Graphics g, final String s) {
return g.getFontMetrics().stringWidth(s);
}
/**
* Draws a centered string to the panel.
*
* @param g graphics reference
* @param text text to be painted
* @param w panel width
* @param y vertical position
*/
public static void drawCenter(final Graphics g, final String text, final int w, final int y) {
g.drawString(text, (w - width(g, text)) / 2, y);
}
/**
* Paints the text cursor.
*
* @param g graphics reference
* @param xx x position
*/
private void drawCursor(final Graphics g, final int xx) {
g.setColor(GUIConstants.DGRAY);
g.fillRect(xx, y - fontH * 4 / 5, 2, fontH);
}
/**
* 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 selected text
final int cp = text.pos();
if (text.selectStart()) {
int xx = x, cw = 0;
while (!text.inSelect() && text.more()) xx += charW(g, text.next());
while (text.inSelect() && text.more()) cw += charW(g, text.next());
g.setColor(GUIConstants.color(3));
g.fillRect(xx, y - fontH * 4 / 5, cw, fontH);
text.pos(cp);
}
// mark found text
int xx = x;
while (text.more() && text.searchStart()) {
int cw = 0;
while (!text.inSearch() && text.more()) xx += charW(g, text.next());
while (text.inSearch() && text.more()) cw += charW(g, text.next());
g.setColor(GUIConstants.color2A);
g.fillRect(xx, y - fontH * 4 / 5, cw, fontH);
xx += cw;
}
text.pos(cp);
if (text.erroneous()) drawError(g);
// don't write whitespaces
if (ch > ' ') {
g.setColor(color);
String n = text.nextString();
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;
while (text.more()) {
if (text.cursor() == text.pos()) {
drawCursor(g, xx);
break;
}
xx += charW(g, text.next());
}
text.pos(cp);
}
}
next();
}
