First version of our new optimized style engine. Not functional yet, so don't bother...
[quassel.git] / src / uisupport / old-uistyle.cpp
diff --git a/src/uisupport/old-uistyle.cpp b/src/uisupport/old-uistyle.cpp
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+/***************************************************************************
+ *   Copyright (C) 2005-08 by the Quassel Project                          *
+ *   devel@quassel-irc.org                                                 *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) version 3.                                           *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+#include <QApplication>
+
+#include "uistyle.h"
+#include "uistylesettings.h"
+
+UiStyle::UiStyle(const QString &settingsKey) : _settingsKey(settingsKey) {
+  // Default format
+  QTextCharFormat def;
+  def.setForeground(QBrush("#000000"));
+  def.setFont(QFont("Monospace", QApplication::font().pointSize()));
+  def.font().setFixedPitch(true);
+  def.font().setStyleHint(QFont::TypeWriter);
+  _defaultFormats = QVector<QTextCharFormat>(NumFormatTypes, def);
+  _customFormats = QVector<QTextCharFormat>(NumFormatTypes, QTextFormat().toCharFormat());
+
+  // Load saved custom formats
+  UiStyleSettings s(_settingsKey);
+  foreach(FormatType type, s.availableFormats()) {
+    _customFormats[type] = s.customFormat(type);
+  }
+
+  // Initialize color codes according to mIRC "standard"
+  QStringList colors;
+  //colors << "white" << "black" << "navy" << "green" << "red" << "maroon" << "purple" << "orange";
+  //colors << "yellow" << "lime" << "teal" << "aqua" << "royalblue" << "fuchsia" << "grey" << "silver";
+  colors << "#ffffff" << "#000000" << "#000080" << "#008000" << "#ff0000" << "#800000" << "#800080" << "#ffa500";
+  colors << "#ffff00" << "#00ff00" << "#008080" << "#00ffff" << "#4169E1" << "#ff00ff" << "#808080" << "#c0c0c0";
+
+  // Now initialize the mapping between FormatCodes and FormatTypes...
+  _formatCodes["%O"] = None;
+  _formatCodes["%B"] = Bold;
+  _formatCodes["%S"] = Italic;
+  _formatCodes["%U"] = Underline;
+  _formatCodes["%R"] = Reverse;
+
+  _formatCodes["%D0"] = PlainMsg;
+  _formatCodes["%Dn"] = NoticeMsg;
+  _formatCodes["%Ds"] = ServerMsg;
+  _formatCodes["%De"] = ErrorMsg;
+  _formatCodes["%Dj"] = JoinMsg;
+  _formatCodes["%Dp"] = PartMsg;
+  _formatCodes["%Dq"] = QuitMsg;
+  _formatCodes["%Dk"] = KickMsg;
+  _formatCodes["%Dr"] = RenameMsg;
+  _formatCodes["%Dm"] = ModeMsg;
+  _formatCodes["%Da"] = ActionMsg;
+
+  _formatCodes["%DT"] = Timestamp;
+  _formatCodes["%DS"] = Sender;
+  _formatCodes["%DN"] = Nick;
+  _formatCodes["%DH"] = Hostmask;
+  _formatCodes["%DC"] = ChannelName;
+  _formatCodes["%DM"] = ModeFlags;
+  _formatCodes["%DU"] = Url;
+
+  // Set color formats
+  for(int i = 0; i < 16; i++) {
+    QString idx = QString("%1").arg(i, (int)2, (int)10, (QChar)'0');
+    _formatCodes[QString("%Dcf%1").arg(idx)] = (FormatType)(FgCol00 + i);
+    _formatCodes[QString("%Dcb%1").arg(idx)] = (FormatType)(BgCol00 + i);
+    QTextCharFormat fgf, bgf;
+    fgf.setForeground(QBrush(QColor(colors[i]))); setFormat((FormatType)(FgCol00 + i), fgf, Settings::Default);
+    bgf.setBackground(QBrush(QColor(colors[i]))); setFormat((FormatType)(BgCol00 + i), bgf, Settings::Default);
+    //FIXME fix the havoc caused by ColorSettingsPage
+    setFormat((FormatType)(FgCol00 + i), fgf, Settings::Custom);
+    setFormat((FormatType)(BgCol00 + i), bgf, Settings::Custom);
+  }
+
+  // Set a few more standard formats
+  QTextCharFormat bold; bold.setFontWeight(QFont::Bold);
+  setFormat(Bold, bold, Settings::Default);
+
+  QTextCharFormat italic; italic.setFontItalic(true);
+  setFormat(Italic, italic, Settings::Default);
+
+  QTextCharFormat underline; underline.setFontUnderline(true);
+  setFormat(Underline, underline, Settings::Default);
+
+  // All other formats should be defined in derived classes.
+}
+
+UiStyle::~ UiStyle() {
+  
+}
+
+void UiStyle::setFormat(FormatType ftype, QTextCharFormat fmt, Settings::Mode mode) {
+  if(mode == Settings::Default) {
+    _defaultFormats[ftype] = fmt;
+  } else {
+    UiStyleSettings s(_settingsKey);
+    if(fmt != _defaultFormats[ftype]) {
+      _customFormats[ftype] = fmt;
+      s.setCustomFormat(ftype, fmt);
+    } else {
+      _customFormats[ftype] = QTextFormat().toCharFormat();
+      s.removeCustomFormat(ftype);
+    }
+  }
+}
+
+QTextCharFormat UiStyle::format(FormatType ftype, Settings::Mode mode) const {
+  if(mode == Settings::Custom && _customFormats[ftype].isValid()) return _customFormats[ftype];
+  else return _defaultFormats[ftype];
+}
+
+UiStyle::FormatType UiStyle::formatType(const QString & code) const {
+  if(_formatCodes.contains(code)) return _formatCodes.value(code);
+  return Invalid;
+}
+
+QString UiStyle::formatCode(FormatType ftype) const {
+  return _formatCodes.key(ftype);
+}
+
+UiStyle::StyledText UiStyle::styleString(const QString &_s) {
+  QString s = _s;
+  StyledText result;
+  QList<FormatType> fmtList;
+  fmtList.append(None);
+  QTextLayout::FormatRange curFmtRng;
+  curFmtRng.format = format(None);
+  curFmtRng.start = 0;
+  result.formats.append(curFmtRng);
+  int pos = 0; int length = 0;
+  int fgCol = -1, bgCol = -1;  // marks current mIRC color
+  for(;;) {
+    pos = s.indexOf('%', pos);
+    if(pos < 0) break;
+    if(s[pos+1] == '%') { // escaped %, just remove one and continue
+      s.remove(pos, 1);
+      pos++;
+      continue;
+    } else if(s[pos+1] == 'D' && s[pos+2] == 'c') { // color code
+      if(s[pos+3] == '-') { // color off
+        if(fgCol >= 0) {
+          fmtList.removeAll((FormatType)(FgCol00 + fgCol));
+          fgCol = -1;
+        }
+        if(bgCol >= 0) {
+          fmtList.removeAll((FormatType)(BgCol00 + bgCol));
+          bgCol = -1;
+        }
+        curFmtRng.format = mergedFormat(fmtList);
+        length = 4;
+      } else {
+        int color = 10 * s[pos+4].digitValue() + s[pos+5].digitValue();
+        //TODO: use 99 as transparent color (re mirc color "standard")
+        color &= 0x0f;
+        int *colptr; FormatType coltype;
+        if(s[pos+3] == 'f') { // foreground
+          colptr = &fgCol; coltype = FgCol00;
+        } else {              // background
+          Q_ASSERT(s[pos+3] == 'b');
+          colptr = &bgCol; coltype = BgCol00;
+        }
+        if(*colptr >= 0) {
+          // color already set, remove format code and add new one
+          Q_ASSERT(fmtList.contains((FormatType)(coltype + *colptr)));
+          fmtList.removeAll((FormatType)(coltype + *colptr));
+          fmtList.append((FormatType)(coltype + color));
+          curFmtRng.format = mergedFormat(fmtList);
+        } else {
+          fmtList.append((FormatType)(coltype + color));
+          curFmtRng.format.merge(format(fmtList.last()));
+        }
+        *colptr = color;
+        length = 6;
+      }
+    } else if(s[pos+1] == 'O') { // reset formatting
+      fmtList.clear(); fmtList.append(None);
+      curFmtRng.format = format(None);
+      fgCol = bgCol = -1;
+      length = 2;
+    } else if(s[pos+1] == 'R') { // reverse
+      // TODO: implement reverse formatting
+
+      length = 2;
+    } else { // all others are toggles
+      QString code = QString("%") + s[pos+1];
+      if(s[pos+1] == 'D') code += s[pos+2];
+      FormatType ftype = formatType(code);
+      if(ftype == Invalid) {
+        qWarning(qPrintable(QString("Invalid format code in string: %1").arg(s)));
+        continue;
+      }
+      //Q_ASSERT(ftype != Invalid);
+      length = code.length();
+      if(!fmtList.contains(ftype)) {
+        // toggle it on
+        fmtList.append(ftype);
+        curFmtRng.format.merge(format(ftype));
+      } else {
+        // toggle it off
+        fmtList.removeAll(ftype);
+        curFmtRng.format = mergedFormat(fmtList);
+      }
+    }
+    s.remove(pos, length); // remove format code from string
+    // now see if something changed and else insert the format
+    if(curFmtRng.format == result.formats.last().format) continue;  // no change, so we just ignore
+    curFmtRng.start = pos;
+    if(pos == result.formats.last().start) {
+      // same starting point -> we just overwrite the old format
+      result.formats.last() = curFmtRng;
+    } else {
+      // fix length of last format
+      result.formats.last().length = pos - result.formats.last().start;
+      result.formats.append(curFmtRng);
+    }
+  }
+  result.formats.last().length = s.length() - result.formats.last().start;
+  if(result.formats.last().length == 0) result.formats.removeLast();
+  result.text = s;
+  return result;
+}
+
+QTextCharFormat UiStyle::mergedFormat(QList<FormatType> formatList) {
+  QTextCharFormat fmt;
+  foreach(FormatType ftype, formatList) {
+    fmt.merge(format(ftype));
+  }
+  return fmt;
+}