X-Git-Url: https://git.quassel-irc.org/?a=blobdiff_plain;f=src%2Fqtui%2Fchatitem.cpp;h=127d3bad3843df0d40f78c226ad1d18343df5c71;hb=0f16a547d17c536cc567bfb2746824bfca3424cd;hp=ff81259cfa385645df3f09b3efa2fd7f2f7c87ce;hpb=209c692cb560ba979442d2f75ed08b4f6adf3120;p=quassel.git

diff --git a/src/qtui/chatitem.cpp b/src/qtui/chatitem.cpp
index ff81259c..127d3bad 100644
--- a/src/qtui/chatitem.cpp
+++ b/src/qtui/chatitem.cpp
@@ -18,211 +18,361 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
+#include <QApplication>
+#include <QClipboard>
+#include <QDesktopServices>
 #include <QFontMetrics>
 #include <QGraphicsSceneMouseEvent>
 #include <QPainter>
+#include <QPalette>
 #include <QTextLayout>
 
 #include "chatitem.h"
 #include "chatlinemodel.h"
 #include "qtui.h"
 
-ChatItem::ChatItem(const QPersistentModelIndex &index_, QGraphicsItem *parent) : QGraphicsItem(parent), _index(index_) {
-  _fontMetrics = QtUi::style()->fontMetrics(data(ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second);
-  _layout = 0;
-  _lines = 0;
+ChatItem::ChatItem(ChatLineModel::ColumnType col, QAbstractItemModel *model, QGraphicsItem *parent)
+  : QGraphicsItem(parent),
+    _fontMetrics(0),
+    _selectionMode(NoSelection),
+    _selectionStart(-1),
+    _layout(0)
+{
+  Q_ASSERT(model);
+  QModelIndex index = model->index(row(), col);
+  _fontMetrics = QtUi::style()->fontMetrics(model->data(index, ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second);
+  setAcceptHoverEvents(true);
+  setZValue(20);
 }
 
 ChatItem::~ChatItem() {
-
+  delete _layout;
 }
 
 QVariant ChatItem::data(int role) const {
-  if(!_index.isValid()) {
-    qWarning() << "ChatItem::data(): Model index is invalid!" << _index;
+  QModelIndex index = model()->index(row(), column());
+  if(!index.isValid()) {
+    qWarning() << "ChatItem::data(): model index is invalid!" << index;
     return QVariant();
   }
-  return _index.data(role);
+  return model()->data(index, role);
 }
 
-int ChatItem::setWidth(int w) {
-  w -= 10;
+qreal ChatItem::setGeometry(qreal w, qreal h) {
   if(w == _boundingRect.width()) return _boundingRect.height();
-  int h = heightForWidth(w);
+  prepareGeometryChange();
   _boundingRect.setWidth(w);
+  if(h < 0) h = computeHeight();
   _boundingRect.setHeight(h);
   if(haveLayout()) updateLayout();
   return h;
 }
 
-int ChatItem::heightForWidth(int width) {
-  if(data(ChatLineModel::ColumnTypeRole).toUInt() != ChatLineModel::ContentsColumn)
-    return fontMetrics()->lineSpacing(); // only contents can be multi-line
+qreal ChatItem::computeHeight() {
+  return fontMetrics()->lineSpacing(); // only contents can be multi-line
+}
 
-  ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
-  _lines = 1;
-  qreal w = 0;
-  for(int i = 0; i < wrapList.count(); i++) {
-    w += wrapList.at(i).width;
-    if(w <= width) {
-      w += wrapList.at(i).trailing;
-      continue;
+QTextLayout *ChatItem::createLayout(QTextOption::WrapMode wrapMode, Qt::Alignment alignment) {
+  QTextLayout *layout = new QTextLayout(data(MessageModel::DisplayRole).toString());
+
+  QTextOption option;
+  option.setWrapMode(wrapMode);
+  option.setAlignment(alignment);
+  layout->setTextOption(option);
+
+  QList<QTextLayout::FormatRange> formatRanges
+         = QtUi::style()->toTextLayoutList(data(MessageModel::FormatRole).value<UiStyle::FormatList>(), layout->text().length());
+  layout->setAdditionalFormats(formatRanges);
+  return layout;
+}
+
+void ChatItem::updateLayout() {
+  if(!haveLayout())
+    setLayout(createLayout(QTextOption::WrapAnywhere, Qt::AlignLeft));
+
+  layout()->beginLayout();
+  QTextLine line = layout()->createLine();
+  if(line.isValid()) {
+    line.setLineWidth(width());
+    line.setPosition(QPointF(0,0));
+  }
+  layout()->endLayout();
+}
+
+void ChatItem::clearLayout() {
+  delete _layout;
+  _layout = 0;
+}
+
+// NOTE: This is not the most time-efficient implementation, but it saves space by not caching unnecessary data
+//       This is a deliberate trade-off. (-> selectFmt creation, data() call)
+void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
+  Q_UNUSED(option); Q_UNUSED(widget);
+  if(!haveLayout()) updateLayout();
+  painter->setClipRect(boundingRect()); // no idea why QGraphicsItem clipping won't work
+  //if(_selectionMode == FullSelection) {
+    //painter->save();
+    //painter->fillRect(boundingRect(), QApplication::palette().brush(QPalette::Highlight));
+    //painter->restore();
+  //}
+  QVector<QTextLayout::FormatRange> formats;
+  if(_selectionMode != NoSelection) {
+    QTextLayout::FormatRange selectFmt;
+    selectFmt.format.setForeground(QApplication::palette().brush(QPalette::HighlightedText));
+    selectFmt.format.setBackground(QApplication::palette().brush(QPalette::Highlight));
+    if(_selectionMode == PartialSelection) {
+      selectFmt.start = qMin(_selectionStart, _selectionEnd);
+      selectFmt.length = qAbs(_selectionStart - _selectionEnd);
+    } else { // FullSelection
+      selectFmt.start = 0;
+      selectFmt.length = data(MessageModel::DisplayRole).toString().length();
     }
-    _lines++;
-    w = wrapList.at(i).width;
-    while(w >= width) {  // handle words longer than a line
-      _lines++;
-      // We do not want to compute an exact split position (that would require us to calculate glyph widths
-      // and also apply formats in this step...)
-      // Just using width should be a good estimate, but since a character can't be split in the middle, we
-      // subtract averageCharWidth as well... sometimes this won't be enough, but meh.
-      w -= width - 4*fontMetrics()->averageCharWidth();
+    formats.append(selectFmt);
+  }
+  layout()->draw(painter, QPointF(0,0), formats, boundingRect());
+}
+
+qint16 ChatItem::posToCursor(const QPointF &pos) {
+  if(pos.y() > height()) return data(MessageModel::DisplayRole).toString().length();
+  if(pos.y() < 0) return 0;
+  if(!haveLayout()) updateLayout();
+  for(int l = layout()->lineCount() - 1; l >= 0; l--) {
+    QTextLine line = layout()->lineAt(l);
+    if(pos.y() >= line.y()) {
+      return line.xToCursor(pos.x(), QTextLine::CursorOnCharacter);
     }
   }
-  return _lines * fontMetrics()->lineSpacing();
+  return 0;
 }
 
-void ChatItem::layout() {
-  if(haveLayout()) return;
-  _layout = new QTextLayout(data(MessageModel::DisplayRole).toString());
+void ChatItem::setFullSelection() {
+  if(_selectionMode != FullSelection) {
+    _selectionMode = FullSelection;
+    update();
+  }
+}
 
-  QTextOption option;
-  option.setWrapMode(QTextOption::WrapAnywhere);
-  _layout->setTextOption(option);
-
-  // Convert format information into a FormatRange
-  QList<QTextLayout::FormatRange> formatRanges;
-  UiStyle::FormatList formatList = data(MessageModel::FormatRole).value<UiStyle::FormatList>();
-  QTextLayout::FormatRange range;
-  int i = 0;
-  for(i = 0; i < formatList.count(); i++) {
-    range.format = QtUi::style()->mergedFormat(formatList.at(i).second);
-    range.start = formatList.at(i).first;
-    if(i > 0) formatRanges.last().length = range.start - formatRanges.last().start;
-    formatRanges.append(range);
+void ChatItem::clearSelection() {
+  _selectionMode = NoSelection;
+  update();
+}
+
+void ChatItem::continueSelecting(const QPointF &pos) {
+  _selectionMode = PartialSelection;
+  _selectionEnd = posToCursor(pos);
+  update();
+}
+
+QList<QRectF> ChatItem::findWords(const QString &searchWord, Qt::CaseSensitivity caseSensitive) {
+  QList<QRectF> resultList;
+  const QAbstractItemModel *model_ = model();
+  if(!model_)
+    return resultList;
+
+  QString plainText = model_->data(model_->index(row(), column()), MessageModel::DisplayRole).toString();
+  QList<int> indexList;
+  int searchIdx = plainText.indexOf(searchWord, 0, caseSensitive);
+  while(searchIdx != -1) {
+    indexList << searchIdx;
+    searchIdx = plainText.indexOf(searchWord, searchIdx + 1, caseSensitive);
   }
-  if(i > 0) formatRanges.last().length = _layout->text().length() - formatRanges.last().start;
-  _layout->setAdditionalFormats(formatRanges);
-  updateLayout();
+
+  if(!haveLayout())
+    updateLayout();
+
+  foreach(int idx, indexList) {
+    QTextLine line = layout()->lineForTextPosition(idx);
+    qreal x = line.cursorToX(idx);
+    qreal width = line.cursorToX(idx + searchWord.count()) - x;
+    qreal height = fontMetrics()->lineSpacing();
+    qreal y = height * line.lineNumber();
+    resultList << QRectF(x, y, width, height);
+  }
+  return resultList;
 }
 
-void ChatItem::updateLayout() {
-  if(!haveLayout()) layout();
+void ChatItem::mousePressEvent(QGraphicsSceneMouseEvent *event) {
+  if(event->buttons() == Qt::LeftButton) {
+    chatScene()->setSelectingItem(this);
+    _selectionStart = _selectionEnd = posToCursor(event->pos());
+    _selectionMode = NoSelection; // will be set to PartialSelection by mouseMoveEvent
+    update();
+    event->accept();
+  } else {
+    event->ignore();
+  }
+}
+
+void ChatItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
+  if(event->buttons() == Qt::LeftButton) {
+    if(contains(event->pos())) {
+      qint16 end = posToCursor(event->pos());
+      if(end != _selectionEnd) {
+        _selectionEnd = end;
+        _selectionMode = (_selectionStart != _selectionEnd ? PartialSelection : NoSelection);
+        update();
+      }
+    } else {
+      setFullSelection();
+      chatScene()->startGlobalSelection(this, event->pos());
+    }
+    event->accept();
+  } else {
+    event->ignore();
+  }
+}
+
+void ChatItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
+  if(_selectionMode != NoSelection && !event->buttons() & Qt::LeftButton) {
+    _selectionEnd = posToCursor(event->pos());
+    QString selection
+        = data(MessageModel::DisplayRole).toString().mid(qMin(_selectionStart, _selectionEnd), qAbs(_selectionStart - _selectionEnd));
+    chatScene()->putToClipboard(selection);
+    event->accept();
+  } else {
+    event->ignore();
+  }
+}
+
+/*************************************************************************************************/
+
+/*************************************************************************************************/
+
+void SenderChatItem::updateLayout() {
+  if(!haveLayout()) setLayout(createLayout(QTextOption::WrapAnywhere, Qt::AlignRight));
+  ChatItem::updateLayout();
+}
+
+/*************************************************************************************************/
+
+ContentsChatItem::ContentsChatItem(QAbstractItemModel *model, QGraphicsItem *parent) : ChatItem(column(), model, parent),
+  _layoutData(0)
+{
+
+}
+
+ContentsChatItem::~ContentsChatItem() {
+  delete _layoutData;
+}
+
+qreal ContentsChatItem::computeHeight() {
+  int lines = 1;
+  WrapColumnFinder finder(this);
+  while(finder.nextWrapColumn() > 0) lines++;
+  return lines * fontMetrics()->lineSpacing();
+}
+
+void ContentsChatItem::setLayout(QTextLayout *layout) {
+  if(!_layoutData)
+    _layoutData = new LayoutData;
+  _layoutData->layout = layout;
+}
+
+void ContentsChatItem::clearLayout() {
+  delete _layoutData;
+  _layoutData = 0;
+}
+
+void ContentsChatItem::updateLayout() {
+  if(!haveLayout()) setLayout(createLayout(QTextOption::WrapAnywhere));
 
   // Now layout
   ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
   if(!wrapList.count()) return; // empty chatitem
-  int wordidx = 0;
-  ChatLineModel::Word word = wrapList.at(0);
 
   qreal h = 0;
-  _layout->beginLayout();
+  WrapColumnFinder finder(this);
+  layout()->beginLayout();
   forever {
-    QTextLine line = _layout->createLine();
-    if (!line.isValid())
+    QTextLine line = layout()->createLine();
+    if(!line.isValid())
       break;
 
-    if(word.width >= width()) {
-      line.setLineWidth(width());
-      word.width -= line.naturalTextWidth();
-      word.start = line.textStart() + line.textLength();
-      //qDebug() << "setting width: " << width();
-    } else {
-      int w = 0;
-      while((w += word.width) <= width() && wordidx < wrapList.count()) {
-        w += word.trailing;
-        if(++wordidx < wrapList.count()) word = wrapList.at(wordidx);
-        else {
-          // last word (and it fits), but if we expected an extra line, wrap anyway here
-          // yeah, this is cheating, but much cheaper than computing widths ourself
-          if(_layout->lineCount() < _lines) {
-            wordidx--; qDebug() << "trigger!" << _lines << _layout->text();
-            break;
-          }
-        }
-      }
-      int lastcol = wordidx < wrapList.count() ? word.start : _layout->text().length();
-      line.setNumColumns(lastcol - line.textStart());// qDebug() << "setting cols:" << lastcol - line.textStart();
-    }
-
-    h += fontMetrics()->leading();
+    int col = finder.nextWrapColumn();
+    line.setNumColumns(col >= 0 ? col - line.textStart() : layout()->text().length());
     line.setPosition(QPointF(0, h));
-    h += line.height();
+    h += line.height() + fontMetrics()->leading();
   }
-  _layout->endLayout();
+  layout()->endLayout();
 }
 
-void ChatItem::clearLayout() {
-  delete _layout;
-  _layout = 0;
-}
+void ContentsChatItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) {
+  // FIXME dirty and fast hack to make http:// urls klickable
 
-void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
-  Q_UNUSED(option); Q_UNUSED(widget);
-  layout();
-  _layout->draw(painter, QPointF(0,0), QVector<QTextLayout::FormatRange>(), boundingRect());
-  painter->drawRect(boundingRect());
-  int width = 0;
-  QVariantList wrapList = data(ChatLineModel::WrapListRole).toList();
-  for(int i = 2; i < wrapList.count(); i+=2) {
-    QRect r(wrapList[i-1].toUInt(), 0, wrapList[i+1].toUInt() - wrapList[i-1].toUInt(), fontMetrics()->lineSpacing());
-    painter->drawRect(r);
-  }
+  QRegExp regex("\\b([hf]t{1,2}ps?://[^\\s]+)\\b");
+  QString str = data(ChatLineModel::DisplayRole).toString();
+  int idx = posToCursor(event->pos());
+  int mi = 0;
+  do {
+    mi = regex.indexIn(str, mi);
+    if(mi < 0) break;
+    if(idx >= mi && idx < mi + regex.matchedLength()) {
+      QDesktopServices::openUrl(QUrl(regex.capturedTexts()[1]));
+      break;
+    }
+    mi += regex.matchedLength();
+  } while(mi >= 0);
+  event->accept();
 }
 
-/*
-void ChatItem::layout() {
-  if(!_layout.additionalFormats().count()) return; // no text set
-  if(_width <= 0) return;
-  prepareGeometryChange();
-  QFontMetrics metrics(_layout.additionalFormats()[0].format.font());
-  int leading = metrics.leading();
-  int height = 0;
-  _layout.setTextOption(textOption());
-  _layout.beginLayout();
-  while(1) {
-    QTextLine line = _layout.createLine();
-    if(!line.isValid()) break;
-    line.setLineWidth(_width);
-    if(textOption().wrapMode() != QTextOption::NoWrap && line.naturalTextWidth() > _width) {
-      // word did not fit, we need to wrap it in the middle
-      // this is a workaround for Qt failing to handle WrapAtWordBoundaryOrAnywhere correctly
-      QTextOption::WrapMode mode = textOption().wrapMode();
-      textOption().setWrapMode(QTextOption::WrapAnywhere);
-      _layout.setTextOption(textOption());
-      line.setLineWidth(_width);
-      textOption().setWrapMode(mode);
-      _layout.setTextOption(textOption());
-    }
-    height += leading;
-    line.setPosition(QPoint(0, height));
-    height += line.height();
-  }
-  _layout.endLayout();
-  update();
-}    QDateTime _timestamp;
-    MsgId _msgId;
+void ContentsChatItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event) {
+  //qDebug() << (void*)this << "entering";
+  event->ignore();
+}
 
+void ContentsChatItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event) {
+  //qDebug() << (void*)this << "leaving";
+  event->ignore();
+}
 
-QRectF ChatItem::boundingRect() const {
-  return _layout.boundingRect();
+void ContentsChatItem::hoverMoveEvent(QGraphicsSceneHoverEvent *event) {
+  //qDebug() << (void*)this << event->pos();
+  event->ignore();
 }
 
-void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
-  Q_UNUSED(option); Q_UNUSED(widget);
-  _layout.draw(painter, QPointF(0, 0));
+/*************************************************************************************************/
 
+ContentsChatItem::WrapColumnFinder::WrapColumnFinder(ChatItem *_item) : item(_item) {
+  wrapList = item->data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
+  wordidx = 0;
+  layout = 0;
+  lastwrapcol = 0;
+  lastwrappos = 0;
+  w = 0;
 }
-*/
 
-/*
-void ChatItem::mouseMoveEvent ( QGraphicsSceneMouseEvent * event ) {
-  qDebug() << (void*)this << "moving" << event->pos();
-  if(event->pos().y() < 0) {
-    QTextCursor cursor(document());
-    //cursor.insertText("foo");
-    //cursor.select(QTextCursor::Document);
-    event->ignore();
-  } else QGraphicsTextItem::mouseMoveEvent(event);
+ContentsChatItem::WrapColumnFinder::~WrapColumnFinder() {
+  delete layout;
+}
+
+qint16 ContentsChatItem::WrapColumnFinder::nextWrapColumn() {
+  while(wordidx < wrapList.count()) {
+    w += wrapList.at(wordidx).width;
+    if(w >= item->width()) {
+      if(lastwrapcol >= wrapList.at(wordidx).start) {
+        // first word, and it doesn't fit
+        if(!line.isValid()) {
+          layout = item->createLayout(QTextOption::NoWrap);
+          layout->beginLayout();
+          line = layout->createLine();
+          line.setLineWidth(item->width());
+          layout->endLayout();
+        }
+        int idx = line.xToCursor(lastwrappos + item->width(), QTextLine::CursorOnCharacter);
+        qreal x = line.cursorToX(idx, QTextLine::Trailing);
+        w = w - wrapList.at(wordidx).width - (x - lastwrappos);
+        lastwrappos = x;
+        lastwrapcol = idx;
+        return idx;
+      }
+      // not the first word, so just wrap before this
+      lastwrapcol = wrapList.at(wordidx).start;
+      lastwrappos = lastwrappos + w - wrapList.at(wordidx).width;
+      w = 0;
+      return lastwrapcol;
+    }
+    w += wrapList.at(wordidx).trailing;
+    wordidx++;
+  }
+  return -1;
 }
-*/