/***************************************************************************
- * Copyright (C) 2005-08 by the Quassel Project *
+ * Copyright (C) 2005-09 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+#include <QFontMetrics>
+#include <QTextBoundaryFinder>
+
#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.text;
- _sender.plainText = m.sender.text;
- _contents.plainText = m.text.text;
- _timestamp.formatList = m.timestamp.formats;
- _sender.formatList = m.sender.formats;
- _contents.formatList = m.text.formats;
+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);
}
+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::TextColumn: 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;
+}
+QVariant ChatLineModelItem::timestampData(int role) const {
switch(role) {
- case ChatlineModel::DisplayRole: return part->plainText;
- case ChatlineModel::FormatRole: return QVariant::fromValue<UiStyle::FormatList>(part->formatList);
+ 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();
+}
- return MessageModelItem::data(column, role);
+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();
}
-bool ChatlineModelItem::setData(int column, const QVariant &value, int role) {
- return false;
+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;
}
+
+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;
+ }
+
+ 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