/***************************************************************************
- * Copyright (C) 2005-08 by the Quassel Project *
+ * Copyright (C) 2005-2013 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
* 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. *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <QFontMetrics>
#include "chatlinemodelitem.h"
#include "chatlinemodel.h"
#include "qtui.h"
-#include "uistyle.h"
+#include "qtuistyle.h"
-ChatLineModelItem::ChatLineModelItem(const Message &msg) : MessageModelItem(msg) {
- QtUiStyle::StyledMessage m = QtUi::style()->styleMessage(msg);
+// This Struct is taken from Harfbuzz. We use it only to calc it's size.
+// we use a shared memory region so we do not have to malloc a buffer area for every line
+typedef struct {
+ /*HB_LineBreakType*/ unsigned lineBreakType : 2;
+ /*HB_Bool*/ unsigned whiteSpace : 1; /* A unicode whitespace character, except NBSP, ZWNBSP */
+ /*HB_Bool*/ unsigned charStop : 1; /* Valid cursor position (for left/right arrow) */
+ /*HB_Bool*/ unsigned wordBoundary : 1;
+ /*HB_Bool*/ unsigned sentenceBoundary : 1;
+ unsigned unused : 2;
+} HB_CharAttributes_Dummy;
- _timestamp.plainText = m.timestamp.plainText;
- _sender.plainText = m.sender.plainText;
- _contents.plainText = m.contents.plainText;
+unsigned char *ChatLineModelItem::TextBoundaryFinderBuffer = (unsigned char *)malloc(512 * sizeof(HB_CharAttributes_Dummy));
+int ChatLineModelItem::TextBoundaryFinderBufferSize = 512 * (sizeof(HB_CharAttributes_Dummy) / sizeof(unsigned char));
+
+// ****************************************
+// the actual ChatLineModelItem
+// ****************************************
+ChatLineModelItem::ChatLineModelItem(const Message &msg)
+ : MessageModelItem(),
+ _styledMsg(msg)
+{
+ if (!msg.sender().contains('!'))
+ _styledMsg.setFlags(msg.flags() |= Message::ServerMsg);
+}
- _timestamp.formatList = m.timestamp.formatList;
- _sender.formatList = m.sender.formatList;
- _contents.formatList = m.contents.formatList;
- computeWrapList();
+bool ChatLineModelItem::setData(int column, const QVariant &value, int role)
+{
+ switch (role) {
+ case MessageModel::FlagsRole:
+ _styledMsg.setFlags((Message::Flags)value.toUInt());
+ return true;
+ default:
+ return MessageModelItem::setData(column, value, role);
+ }
}
-QVariant ChatLineModelItem::data(int column, int role) const {
- const ChatLinePart *part;
+QVariant ChatLineModelItem::data(int column, int role) const
+{
+ if (role == ChatLineModel::MsgLabelRole)
+ return messageLabel();
- switch(column) {
- case ChatLineModel::TimestampColumn: part = &_timestamp; break;
- case ChatLineModel::SenderColumn: part = &_sender; break;
- case ChatLineModel::ContentsColumn: part = &_contents; break;
- default: return MessageModelItem::data(column, role);
- }
+ QVariant variant;
+ MessageModel::ColumnType col = (MessageModel::ColumnType)column;
+ switch (col) {
+ case ChatLineModel::TimestampColumn:
+ variant = timestampData(role);
+ break;
+ case ChatLineModel::SenderColumn:
+ variant = senderData(role);
+ break;
+ case ChatLineModel::ContentsColumn:
+ variant = contentsData(role);
+ break;
+ default:
+ break;
+ }
+ if (!variant.isValid())
+ return MessageModelItem::data(column, role);
+ return variant;
+}
- switch(role) {
+
+QVariant ChatLineModelItem::timestampData(int role) const
+{
+ switch (role) {
case ChatLineModel::DisplayRole:
- return part->plainText;
+ return _styledMsg.decoratedTimestamp();
+ case ChatLineModel::EditRole:
+ return _styledMsg.timestamp();
+ case ChatLineModel::BackgroundRole:
+ return backgroundBrush(UiStyle::Timestamp);
+ case ChatLineModel::SelectedBackgroundRole:
+ return backgroundBrush(UiStyle::Timestamp, true);
case ChatLineModel::FormatRole:
- return QVariant::fromValue<UiStyle::FormatList>(part->formatList);
- case ChatLineModel::WrapListRole:
- if(column != ChatLineModel::ContentsColumn) return QVariant();
- QVariantList wrapList;
- typedef QPair<quint16, quint16> WrapPoint; // foreach can't parse templated params
- foreach(WrapPoint pair, _wrapList) wrapList << pair.first << pair.second;
- return wrapList;
- }
-
- return MessageModelItem::data(column, role);
+ return QVariant::fromValue<UiStyle::FormatList>(UiStyle::FormatList()
+ << qMakePair((quint16)0, (quint32) UiStyle::formatType(_styledMsg.type()) | UiStyle::Timestamp));
+ }
+ return QVariant();
}
-bool ChatLineModelItem::setData(int column, const QVariant &value, int role) {
- return false;
+
+QVariant ChatLineModelItem::senderData(int role) const
+{
+ switch (role) {
+ case ChatLineModel::DisplayRole:
+ return _styledMsg.decoratedSender();
+ case ChatLineModel::EditRole:
+ return _styledMsg.plainSender();
+ case ChatLineModel::BackgroundRole:
+ return backgroundBrush(UiStyle::Sender);
+ case ChatLineModel::SelectedBackgroundRole:
+ return backgroundBrush(UiStyle::Sender, true);
+ case ChatLineModel::FormatRole:
+ return QVariant::fromValue<UiStyle::FormatList>(UiStyle::FormatList()
+ << qMakePair((quint16)0, (quint32) UiStyle::formatType(_styledMsg.type()) | UiStyle::Sender));
+ }
+ return QVariant();
}
-void ChatLineModelItem::computeWrapList() {
- WrapList wplist; // use a temp list which we'll later copy into a QVector for efficiency
- QTextBoundaryFinder finder(QTextBoundaryFinder::Word, _contents.plainText);
- int idx;
- int flistidx = -1;
- int fmtend = -1;
- QFontMetricsF *metrics;
- QPair<quint16, quint16> wp(0, 0);
- do {
- idx = finder.toNextBoundary();
- if(idx < 0) idx = _contents.plainText.length();
- else if(finder.boundaryReasons() != QTextBoundaryFinder::StartWord) continue;
- int start = wp.first;
- while(start < idx) {
- if(fmtend <= start) {
- flistidx++;
- fmtend = _contents.formatList.count() > flistidx+1 ? _contents.formatList[flistidx+1].first
- : _contents.plainText.length();
- metrics = QtUi::style()->fontMetrics(_contents.formatList[flistidx].second);
- Q_ASSERT(fmtend > start);
- }
- int i = qMin(idx, fmtend);
- wp.second += metrics->width(_contents.plainText.mid(start, i - start));
- start = i;
+
+QVariant ChatLineModelItem::contentsData(int role) const
+{
+ switch (role) {
+ case ChatLineModel::DisplayRole:
+ case ChatLineModel::EditRole:
+ return _styledMsg.plainContents();
+ case ChatLineModel::BackgroundRole:
+ return backgroundBrush(UiStyle::Contents);
+ case ChatLineModel::SelectedBackgroundRole:
+ return backgroundBrush(UiStyle::Contents, true);
+ case ChatLineModel::FormatRole:
+ return QVariant::fromValue<UiStyle::FormatList>(_styledMsg.contentsFormatList());
+ case ChatLineModel::WrapListRole:
+ if (_wrapList.isEmpty())
+ computeWrapList();
+ return QVariant::fromValue<ChatLineModel::WrapList>(_wrapList);
}
- wplist.append(wp);
- wp.first = idx;
- } while(idx < _contents.plainText.length());
-
- // A QVector needs less space than a QList
- _wrapList.resize(wplist.count());
- for(int i = 0; i < wplist.count(); i++) {
- _wrapList[i] = wplist.at(i);
- }
+ return QVariant();
+}
+
+
+quint32 ChatLineModelItem::messageLabel() const
+{
+ quint32 label = _styledMsg.senderHash() << 16;
+ if (_styledMsg.flags() & Message::Self)
+ label |= UiStyle::OwnMsg;
+ if (_styledMsg.flags() & Message::Highlight)
+ label |= UiStyle::Highlight;
+ return label;
}
+
+QVariant ChatLineModelItem::backgroundBrush(UiStyle::FormatType subelement, bool selected) const
+{
+ QTextCharFormat fmt = QtUi::style()->format(UiStyle::formatType(_styledMsg.type()) | subelement, messageLabel() | (selected ? UiStyle::Selected : 0));
+ if (fmt.hasProperty(QTextFormat::BackgroundBrush))
+ return QVariant::fromValue<QBrush>(fmt.background());
+ return QVariant();
+}
+
+
+void ChatLineModelItem::computeWrapList() const
+{
+ QString text = _styledMsg.plainContents();
+ int length = text.length();
+ if (!length)
+ return;
+
+ QList<ChatLineModel::Word> wplist; // use a temp list which we'll later copy into a QVector for efficiency
+ QTextBoundaryFinder finder(QTextBoundaryFinder::Line, _styledMsg.plainContents().unicode(), length,
+ TextBoundaryFinderBuffer, TextBoundaryFinderBufferSize);
+
+ int idx;
+ int oldidx = 0;
+ ChatLineModel::Word word;
+ word.start = 0;
+ qreal wordstartx = 0;
+
+ QTextLayout layout(_styledMsg.plainContents());
+ QTextOption option;
+ option.setWrapMode(QTextOption::NoWrap);
+ layout.setTextOption(option);
+
+ layout.setAdditionalFormats(QtUi::style()->toTextLayoutList(_styledMsg.contentsFormatList(), length, messageLabel()));
+ layout.beginLayout();
+ QTextLine line = layout.createLine();
+ line.setNumColumns(length);
+ layout.endLayout();
+
+ while ((idx = finder.toNextBoundary()) >= 0 && idx <= length) {
+ // QTextBoundaryFinder has inconsistent behavior in Qt version up to and including 4.6.3 (at least).
+ // It doesn't point to the position we should break, but to the character before that.
+ // Unfortunately Qt decided to fix this by changing the behavior of QTBF, so now we have to add a version
+ // check. At the time of this writing, I'm still trying to get this reverted upstream...
+ //
+ // cf. https://bugs.webkit.org/show_bug.cgi?id=31076 and Qt commit e6ac173
+ static int needWorkaround = -1;
+ if (needWorkaround < 0) {
+ needWorkaround = 0;
+ QStringList versions = QString(qVersion()).split('.');
+ if (versions.count() == 3 && versions.at(0).toInt() == 4) {
+ if (versions.at(1).toInt() <= 6 && versions.at(2).toInt() <= 3)
+ needWorkaround = 1;
+ }
+ }
+ if (needWorkaround == 1) {
+ if (idx < length)
+ idx++;
+ }
+
+ if (idx == oldidx)
+ continue;
+
+ word.start = oldidx;
+ int wordend = idx;
+ for (; wordend > word.start; wordend--) {
+ if (!text.at(wordend-1).isSpace())
+ break;
+ }
+
+ qreal wordendx = line.cursorToX(wordend);
+ qreal trailingendx = line.cursorToX(idx);
+ word.endX = wordendx;
+ word.width = wordendx - wordstartx;
+ word.trailing = trailingendx - wordendx;
+ wordstartx = trailingendx;
+ wplist.append(word);
+
+ oldidx = idx;
+ }
+
+ // A QVector needs less space than a QList
+ _wrapList.resize(wplist.count());
+ for (int i = 0; i < wplist.count(); i++) {
+ _wrapList[i] = wplist.at(i);
+ }
+}
projects / quassel.git / blobdiff