/***************************************************************************
- * Copyright (C) 2005-09 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>
// 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_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;
-
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(),
+ : MessageModelItem(),
_styledMsg(msg)
{
- if(!msg.sender().contains('!'))
- _styledMsg.setFlags(msg.flags() |= Message::ServerMsg);
+ if (!msg.sender().contains('!'))
+ _styledMsg.setFlags(msg.flags() |= Message::ServerMsg);
}
-bool ChatLineModelItem::setData(int column, const QVariant &value, int role) {
- switch(role) {
+
+bool ChatLineModelItem::setData(int column, const QVariant &value, int role)
+{
+ switch (role) {
case MessageModel::FlagsRole:
- _styledMsg.setFlags((Message::Flags)value.toUInt());
- return true;
+ _styledMsg.setFlags((Message::Flags)value.toUInt());
+ return true;
default:
- return MessageModelItem::setData(column, value, role);
- }
+ return MessageModelItem::setData(column, value, role);
+ }
}
-QVariant ChatLineModelItem::data(int column, int role) const {
- if(role == ChatLineModel::MsgLabelRole)
- return messageLabel();
-
- 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;
+
+QVariant ChatLineModelItem::data(int column, int role) const
+{
+ if (role == ChatLineModel::MsgLabelRole)
+ return messageLabel();
+
+ 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;
}
-QVariant ChatLineModelItem::timestampData(int role) const {
- switch(role) {
- case ChatLineModel::DisplayRole:
- 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>(UiStyle::FormatList()
- << qMakePair((quint16)0, (quint32)UiStyle::formatType(_styledMsg.type()) | UiStyle::Timestamp));
- }
- return QVariant();
+
+QVariant ChatLineModelItem::timestampData(int role) const
+{
+ switch (role) {
+ case ChatLineModel::DisplayRole:
+ 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>(UiStyle::FormatList()
+ << qMakePair((quint16)0, (quint32) UiStyle::formatType(_styledMsg.type()) | UiStyle::Timestamp));
+ }
+ return QVariant();
}
-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();
+
+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();
}
-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);
- }
- return QVariant();
+
+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);
+ }
+ 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;
+
+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();
+
+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) {
- if(idx < length)
- idx++; // the boundary is *before* the actual character
-
- if(idx == oldidx)
- continue;
-
- word.start = oldidx;
- int wordend = idx;
- for(; wordend > word.start; wordend--) {
- if(!text.at(wordend-1).isSpace())
- break;
+
+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;
}
- 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);
- }
+ // 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);
+ }
}
-
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