/**
* Handle the closing of a tag.
*
* @param g Graphics used to retrieve the font metrics.
* @param tag The closing tag without '</' and '>'.
* @return A new TextToken corresponding to the new state.
*/
private TextToken closeTag(Graphics g, String tag) {
TextToken textTok = new TextToken();
int i = m_heap.size() - 1;
char c = tag.charAt(0);
String prevTag;
m_heap.removeElement(tag);
if (c == 'b') m_style &= ~Font.BOLD;
else if (c == 'i') m_style &= ~Font.ITALIC;
if (isGfx(c)) {
while (i-- > 0) { // find previous Tag of the same type in the heap
prevTag = (String) m_heap.elementAt(i);
if (prevTag.charAt(0) == c) {
return updateGfx(g, prevTag);
}
}
}
textTok.m_font = new Font(m_name, m_style, m_size);
g.setFont(textTok.m_font);
return textTok;
}
/**
* Process this text Token to optimize tokens and evaluate the token bounding box.
*
* @param g Graphics to get the font metrics.
* @param text Text to add to the current textTokan.
* @param textTok Current TextToken.
* @param isText True if the previous textToken was a Text Token so we can merge it with this.
*/
private void updateText(Graphics g, String text, TextToken textTok, boolean isText) {
// The text exists!
if (text.length() > 0) {
FontMetrics fm = g.getFontMetrics();
int a = fm.getAscent(), d = fm.getDescent(), w = fm.stringWidth(text), h = fm.getHeight();
// The previous token was a text too so we must merge it with this new one.
if (isText) {
textTok = (TextToken) m_tokens.lastElement();
textTok.m_text += text;
textTok.m_bounds.width += w;
if (textTok.m_bounds.height < h) textTok.m_bounds.height = h;
}
// The previous token was a formating one.
else {
m_tokens.addElement(textTok);
textTok.m_text = text;
textTok.m_bounds = new Rectangle(0, 0, w, h);
}
if (a > m_body.m_aMax) m_body.m_aMax = a;
if (d > m_body.m_dMax) m_body.m_dMax = d;
m_wCur += w;
}
}
/**
* Draws this at a position.
*
* @param g Graphics to draw in.
* @param size Size of the Window to draw in.
* @param pos Where to draw this.
*/
protected void drawText(Graphics gi, Dimension size, Point pos) {
Graphics2D g = (Graphics2D) gi;
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
TextToken textTok;
int i, n = m_tokens.size();
if (m_inCol != null) {
// TODO gérer le gradient dans les swatchs
// GradientPaint gradient = new GradientPaint(pos.x, pos.y, m_inCol , pos.x, pos.y +
// m_bounds.height*2, Color.black );
// g.setPaint( gradient );
g.setColor(m_inCol);
if (m_rounded == -1) g.fillRect(pos.x, pos.y, m_bounds.width, m_bounds.height);
else g.fillRoundRect(pos.x, pos.y, m_bounds.width, m_bounds.height, m_rounded, m_rounded);
}
if (m_outCol != null) {
// GradientPaint gradient = new GradientPaint(0, 0, m_inCol, 0, m_bounds.height, Color.black
// );
// g.setPaint( gradient );
g.setColor(m_outCol);
if (m_rounded == -1) g.drawRect(pos.x, pos.y, m_bounds.width, m_bounds.height);
else g.drawRoundRect(pos.x, pos.y, m_bounds.width, m_bounds.height, m_rounded, m_rounded);
}
for (i = 0; i < n; i++) {
textTok = (TextToken) m_tokens.elementAt(i);
textTok.paint(g, pos);
}
if (false) // n==1 && m_inCol == null) // draw reflection only for one line boxes
{
Composite cb = g.getComposite();
Composite composite = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.2f);
g.setComposite(composite);
g.setColor(Color.white);
g.fillRoundRect(pos.x + 2, pos.y + 2, m_bounds.width - 4, m_bounds.height / 3, 5, 5);
g.setComposite(cb);
}
m_bounds.x = pos.x;
m_bounds.y = pos.y;
}
/**
* Creates a TextToken using a graphical tag. Such a tag is color or font related.
*
* @param g Graphics used to retrieve the font metrics.
* @param tag A pseudo HTML tag without '<', '</' and '>'.
* @return a new TextToken initialized according to the tag.
*/
private TextToken updateGfx(Graphics g, String tag) {
TextToken textTok = new TextToken();
if (tag.startsWith("c=") || tag.startsWith("k=")) {
Color color = tag.startsWith("c=") ? textTok.m_color : textTok.m_bkCol;
int rgb = 0;
textTok.m_font = new Font(m_name, m_style, m_size);
g.setFont(textTok.m_font);
try {
rgb = Integer.decode(tag.substring(2)).intValue(); // #RRGGBB
if (color == null || color.getRGB() == rgb) {
if (tag.startsWith("c=")) {
m_color = rgb;
textTok.m_color = new Color(rgb);
textTok.m_bkCol = m_bkCol != -1 ? new Color(m_bkCol) : null;
} else {
m_bkCol = rgb;
textTok.m_bkCol = new Color(rgb);
textTok.m_color = new Color(m_color);
}
}
} catch (NumberFormatException e) {
System.out.println("[updateTag] Wrong color format : " + tag);
return null;
}
} else {
textTok.m_color = new Color(m_color);
if (tag.equals("b")) {
m_style |= Font.BOLD;
} else if (tag.equals("i")) {
m_style |= Font.ITALIC;
} else if (tag.startsWith("s=")) {
m_size = Integer.parseInt(tag.substring(2));
} else if (tag.startsWith("f=")) {
m_name = tag.substring(2);
} else {
System.out.println("[updateGfx] Syntax error Tag : " + tag);
return null;
}
textTok.m_font = new Font(m_name, m_style, m_size);
g.setFont(textTok.m_font);
}
return textTok;
}
private void text(TextToken token) {
PageElement element = new TextPageElement(token.getText());
addToBody(element);
}
/**
* Creates a new TextToken by parsing a pseudo-HTML tag.
*
* @param g Graphics used to retrieve the font metric.
* @param tag A pseudo HTML tag without '<' and '>'.
* @return a new TextToken initialized according to the tag.
*/
private TextToken updateTag(Graphics g, String tag) {
String tempTag;
TextToken textTok = null;
char begChar;
if (tag.length() > 0) {
tag = tag.toLowerCase();
begChar = tag.charAt(0);
// End of Tag, we returns except for the case </p>
if (begChar == '/') {
char nxtChar = tag.charAt(1);
tempTag = (String) m_heap.lastElement();
if (tempTag.charAt(0) == nxtChar) // ! very simple verification !
{
textTok = closeTag(g, tempTag);
if (nxtChar != 'p') return textTok;
} else {
System.out.println("[updateTag] no corresponding opened Tag : " + tag);
return null;
}
}
FormatToken prevTok = m_curTok;
Insets prevMrg = prevTok.m_margin, margin = m_body.m_margin;
int flags = m_body.m_flags,
width = m_wCur + (prevMrg != null ? prevMrg.left + prevMrg.right : 0);
// Start of Tag + </p>
if (tag.equals("br") || begChar == 'p' || tag.equals("/p")) {
if (tag.equals("br")) {
if (prevMrg != null) margin = prevMrg;
flags = prevTok.m_flags;
}
// We specify new margins
if (begChar == 'p') {
String alignStr = readAtt(tag, "a");
if (alignStr != null) {
char align = Character.toLowerCase(alignStr.charAt(0));
flags = align == 'r' ? RIGHT_BIT : (align == 'c' ? CENTER_BIT : 0);
}
margin = readMargin(tag);
if (tag.length() > 1 && alignStr == null && margin == null) {
flags = m_body.m_flags;
System.out.println("[updateTag] syntax error Tag : " + tag);
return null;
} else {
m_heap.addElement(tag);
}
}
// update pr�vious format Token
prevTok.m_aMax = m_body.m_aMax;
prevTok.m_dMax = m_body.m_dMax;
prevTok.m_width = width;
// reset current vars
m_body.m_aMax = 0;
m_body.m_dMax = 0;
m_wCur = 0;
// Stores the max width of all lines including its margins
if (width > m_body.m_width) m_body.m_width = width;
m_curTok = new FormatToken();
m_curTok.m_flags = flags;
m_curTok.m_margin = margin == null ? m_body.m_margin : margin;
m_tokens.addElement(m_curTok);
textTok = new TextToken();
textTok.m_color = new Color(m_color);
textTok.m_font = new Font(m_name, m_style, m_size);
} else if (isGfx(begChar)) {
textTok = updateGfx(g, tag);
m_heap.addElement(tag);
} else {
System.out.println("[updateTag] Unknown Tag : " + tag);
textTok = null;
}
}
return textTok;
}
/**
* Parses this to extract the Tokens using a line of text. This is necessary to evaluate the
* rendering of the text (color, size, alignment...).
*
* @param g The graphics used to retrieve the font metrics.
* @param htmlText A string of text with or without HTML tags to parse.
*/
protected void parseText(Graphics g, String htmlText) {
StringTokenizer tokenizer = new StringTokenizer(htmlText, "<>", true);
String tokenStr, nextStr, prevStr = tokenizer.nextToken();
boolean hasMore = tokenizer.hasMoreTokens(), isText = false;
Font font = new Font(m_name, m_style, m_size);
TextToken textTok = new TextToken();
textTok.m_color = new Color(m_color);
textTok.m_font = font;
m_curTok = new FormatToken();
m_curTok.m_flags = m_body.m_flags;
m_curTok.m_margin = m_body.m_margin;
m_tokens.addElement(m_curTok);
g.setFont(font);
while (hasMore) {
tokenStr = tokenizer.nextToken();
hasMore = tokenizer.hasMoreTokens();
// A start of Tag
if (prevStr.equals("<")) {
nextStr = hasMore ? tokenizer.nextToken() : null;
// A closed Tag
if (hasMore && nextStr.equals(">")) // tag
{
textTok = updateTag(g, tokenStr);
// An real Tag
if (textTok != null) {
isText = false;
}
// An unknown Tag. Handle it as normal text.
else {
textTok = new TextToken();
updateText(g, "<" + tokenStr + ">", textTok, isText);
isText = true;
}
prevStr = tokenizer.hasMoreTokens() ? tokenizer.nextToken() : null;
}
// An unclosed Tag. Handle it as normal text.
else {
updateText(g, "<" + tokenStr, textTok, isText);
prevStr = nextStr;
isText = true;
}
}
// Normal text
else {
updateText(g, prevStr, textTok, isText);
prevStr = tokenStr;
isText = true;
}
hasMore = tokenizer.hasMoreTokens();
}
// Don't forget the last or only piece of text
if (prevStr != null) {
updateText(g, prevStr, textTok, isText);
}
updateTag(g, "br"); // to set last line position
updateBounds();
}
