Add rudimentary keyboard navigation for previous/next buffer
[quassel.git] / src / qtui / chatline.cpp
index 24e4a5d..4f03794 100644 (file)
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2005-08 by the Quassel Project                          *
+ *   Copyright (C) 2005-2010 by the Quassel Project                        *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
 #include "client.h"
 #include "chatitem.h"
 #include "chatline.h"
+#include "chatview.h"
 #include "columnhandleitem.h"
 #include "messagemodel.h"
 #include "networkmodel.h"
 #include "qtui.h"
 #include "qtuisettings.h"
+#include "qtuistyle.h"
 
-ChatLine::ChatLine(int row, QAbstractItemModel *model, QGraphicsItem *parent)
+ChatLine::ChatLine(int row, QAbstractItemModel *model,
+                   const qreal &width,
+                   const qreal &timestampWidth, const qreal &senderWidth, const qreal &contentsWidth,
+                   const QPointF &senderPos, const QPointF &contentsPos,
+                   QGraphicsItem *parent)
   : QGraphicsItem(parent),
     _row(row), // needs to be set before the items
-    _timestampItem(model, this),
-    _senderItem(model, this),
-    _contentsItem(model, this),
-    _width(0),
-    _height(0),
-    _selection(0)
+    _model(model),
+    _contentsItem(contentsPos, contentsWidth, this),
+    _senderItem(QRectF(senderPos, QSizeF(senderWidth, _contentsItem.height())), this),
+    _timestampItem(QRectF(0, 0, timestampWidth, _contentsItem.height()), this),
+    _width(width),
+    _height(_contentsItem.height()),
+    _selection(0),
+    _mouseGrabberItem(0),
+    _hoverItem(0)
 {
   Q_ASSERT(model);
   QModelIndex index = model->index(row, ChatLineModel::ContentsColumn);
-  setHighlighted(model->data(index, MessageModel::FlagsRole).toInt() & Message::Highlight);
+  setZValue(0);
+  setAcceptHoverEvents(true);
+  setHighlighted(index.data(MessageModel::FlagsRole).toInt() & Message::Highlight);
 }
 
-QRectF ChatLine::boundingRect () const {
-  //return childrenBoundingRect();
-  return QRectF(0, 0, _width, _height);
+ChatLine::~ChatLine() {
+  if(chatView())
+    chatView()->setHasCache(this, false);
 }
 
-ChatItem &ChatLine::item(ChatLineModel::ColumnType column) {
+ChatItem *ChatLine::item(ChatLineModel::ColumnType column) {
   switch(column) {
     case ChatLineModel::TimestampColumn:
-      return _timestampItem;
+      return &_timestampItem;
     case ChatLineModel::SenderColumn:
-      return _senderItem;
+      return &_senderItem;
     case ChatLineModel::ContentsColumn:
-      return _contentsItem;
+      return &_contentsItem;
   default:
-    return *(ChatItem *)0; // provoke an error
+    return 0;
   }
 }
 
-qreal ChatLine::setGeometry(qreal width) {
-  if(width != _width)
+ChatItem *ChatLine::itemAt(const QPointF &pos) {
+  if(_contentsItem.boundingRect().contains(pos))
+    return &_contentsItem;
+  if(_senderItem.boundingRect().contains(pos))
+    return &_senderItem;
+  if(_timestampItem.boundingRect().contains(pos))
+    return &_timestampItem;
+  return 0;
+}
+
+void ChatLine::clearCache() {
+  _timestampItem.clearCache();
+  _senderItem.clearCache();
+  _contentsItem.clearCache();
+}
+
+void ChatLine::setMouseGrabberItem(ChatItem *item) {
+  _mouseGrabberItem = item;
+}
+
+bool ChatLine::sceneEvent(QEvent *event) {
+  if(event->type() == QEvent::GrabMouse) {
+    // get mouse cursor pos relative to us
+    ChatView *view = chatScene()->chatView();
+    QPointF linePos = mapFromScene(view->mapToScene(view->mapFromGlobal(QCursor::pos())));
+    setMouseGrabberItem(itemAt(linePos));
+  } else if(event->type() == QEvent::UngrabMouse) {
+    setMouseGrabberItem(0);
+  }
+  return QGraphicsItem::sceneEvent(event);
+}
+
+void ChatLine::setFirstColumn(const qreal &timestampWidth, const qreal &senderWidth, const QPointF &senderPos) {
+  _timestampItem.setGeometry(timestampWidth, _height);
+  _senderItem.setGeometry(senderWidth, _height);
+  _senderItem.setPos(senderPos);
+}
+
+void ChatLine::setSecondColumn(const qreal &senderWidth, const qreal &contentsWidth, const QPointF &contentsPos, qreal &linePos) {
+  // linepos is the *bottom* position for the line
+  qreal height = _contentsItem.setGeometryByWidth(contentsWidth);
+  linePos -= height;
+  bool needGeometryChange = (height != _height);
+
+  _timestampItem.setHeight(height);
+  _senderItem.setGeometry(senderWidth, height);
+  _contentsItem.setPos(contentsPos);
+
+  if(needGeometryChange)
     prepareGeometryChange();
 
-  ColumnHandleItem *firstColumnHandle = chatScene()->firstColumnHandle();
-  ColumnHandleItem *secondColumnHandle = chatScene()->secondColumnHandle();
-  _height = _contentsItem.setGeometry(width - secondColumnHandle->sceneRight());
-  _timestampItem.setGeometry(firstColumnHandle->sceneLeft(), _height);
-  _senderItem.setGeometry(secondColumnHandle->sceneLeft() - firstColumnHandle->sceneRight(), _height);
+  _height = height;
+
+  setPos(0, linePos);
+}
+
+void ChatLine::setGeometryByWidth(const qreal &width, const qreal &contentsWidth, qreal &linePos) {
+  // linepos is the *bottom* position for the line
+  qreal height = _contentsItem.setGeometryByWidth(contentsWidth);
+  linePos -= height;
+  bool needGeometryChange = (height != _height || width != _width);
 
-  _senderItem.setPos(firstColumnHandle->sceneRight(), 0);
-  _contentsItem.setPos(secondColumnHandle->sceneRight(), 0);
+  if(height != _height) {
+    _timestampItem.setHeight(height);
+    _senderItem.setHeight(height);
+  }
 
-  _width = width;
-  return _height;
+  if(needGeometryChange) {
+    prepareGeometryChange();
+    _height = height;
+    _width = width;
+  }
+
+  setPos(0, linePos); // set pos is _very_ cheap if nothing changes.
 }
 
 void ChatLine::setSelected(bool selected, ChatLineModel::ColumnType minColumn) {
   if(selected) {
-    quint8 sel = (_selection & 0x80) | 0x40 | minColumn;
+    quint8 sel = (_selection & Highlighted) | Selected | minColumn;
     if(sel != _selection) {
       _selection = sel;
       for(int i = 0; i < minColumn; i++)
-       item((ChatLineModel::ColumnType)i).clearSelection();
+        item((ChatLineModel::ColumnType)i)->clearSelection();
       for(int i = minColumn; i <= ChatLineModel::ContentsColumn; i++)
-       item((ChatLineModel::ColumnType)i).setFullSelection();
+        item((ChatLineModel::ColumnType)i)->setFullSelection();
       update();
     }
   } else {
-    quint8 sel = _selection & 0x80;
+    quint8 sel = _selection & Highlighted;
     if(sel != _selection) {
       _selection = sel;
       for(int i = 0; i <= ChatLineModel::ContentsColumn; i++)
-       item((ChatLineModel::ColumnType)i).clearSelection();
+        item((ChatLineModel::ColumnType)i)->clearSelection();
       update();
     }
   }
 }
 
 void ChatLine::setHighlighted(bool highlighted) {
-  if(highlighted) _selection |= 0x80;
-  else _selection &= 0x7f;
+  if(highlighted) _selection |= Highlighted;
+  else _selection &= ~Highlighted;
   update();
 }
 
 void ChatLine::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
   Q_UNUSED(option);
   Q_UNUSED(widget);
-  if(_selection & Highlighted) {
-    painter->fillRect(boundingRect(), QBrush(QtUi::style()->highlightColor()));
+
+  const QAbstractItemModel *model_ = model();
+  QModelIndex myIdx = model_->index(row(), 0);
+  Message::Type type = (Message::Type)myIdx.data(MessageModel::TypeRole).toInt();
+  UiStyle::MessageLabel label = (UiStyle::MessageLabel)myIdx.data(ChatLineModel::MsgLabelRole).toInt();
+
+  QTextCharFormat msgFmt = QtUi::style()->format(UiStyle::formatType(type), label);
+  if(msgFmt.hasProperty(QTextFormat::BackgroundBrush)) {
+    painter->fillRect(boundingRect(), msgFmt.background());
   }
+
   if(_selection & Selected) {
-    qreal left = item((ChatLineModel::ColumnType)(_selection & 0x3f)).x();
-    QRectF selectRect(left, 0, width() - left, height());
-    painter->fillRect(selectRect, QApplication::palette().brush(QPalette::Highlight));
+    QTextCharFormat selFmt = QtUi::style()->format(UiStyle::formatType(type), label | UiStyle::Selected);
+    if(selFmt.hasProperty(QTextFormat::BackgroundBrush)) {
+      qreal left = item((ChatLineModel::ColumnType)(_selection & ItemMask))->pos().x();
+      QRectF selectRect(left, 0, width() - left, height());
+      painter->fillRect(selectRect, selFmt.background());
+    }
   }
 
-  // new line marker
-  const QAbstractItemModel *model_ = model();
-  if(model_ && row() > 0) {
-    QModelIndex prevRowIdx = model_->index(row() - 1, 0);
-    MsgId msgId = model_->data(prevRowIdx, MessageModel::MsgIdRole).value<MsgId>();
-    Message::Flags flags = (Message::Flags)model_->data(model_->index(row(), 0), MessageModel::FlagsRole).toInt();
-    // don't show the marker if we wrote that new line
-    if(!(flags & Message::Self)) {
-      BufferId bufferId = model_->data(prevRowIdx, MessageModel::BufferIdRole).value<BufferId>();
-      if(msgId == Client::networkModel()->lastSeenMsgId(bufferId) && chatScene()->isSingleBufferScene()) {
-       QtUiStyleSettings s("Colors");
-       QLinearGradient gradient(0, 0, 0, height());
-       gradient.setColorAt(0, s.value("newMsgMarkerFG", QColor(Qt::red)).value<QColor>());
-       gradient.setColorAt(0.1, Qt::transparent);
-       painter->fillRect(boundingRect(), gradient);
-      }
-    }
+  // draw chatitems
+  // the items draw themselves at the correct position
+  timestampItem()->paint(painter, option, widget);
+  senderItem()->paint(painter, option, widget);
+  contentsItem()->paint(painter, option, widget);
+}
+
+// We need to dispatch all mouse-related events to the appropriate (mouse grabbing) ChatItem
+
+ChatItem *ChatLine::mouseEventTargetItem(const QPointF &pos) {
+  if(mouseGrabberItem())
+    return mouseGrabberItem();
+  return itemAt(pos);
+}
+
+void ChatLine::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
+  ChatItem *item = mouseEventTargetItem(event->pos());
+  if(item)
+    item->mouseMoveEvent(event);
+}
+
+void ChatLine::mousePressEvent(QGraphicsSceneMouseEvent *event) {
+  ChatItem *item = mouseEventTargetItem(event->pos());
+  if(item)
+    item->mousePressEvent(event);
+}
+
+void ChatLine::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
+  ChatItem *item = mouseEventTargetItem(event->pos());
+  if(item)
+    item->mouseReleaseEvent(event);
+}
+
+void ChatLine::hoverEnterEvent(QGraphicsSceneHoverEvent *event) {
+  ChatItem *item = mouseEventTargetItem(event->pos());
+  if(item && !_hoverItem) {
+    _hoverItem = item;
+    item->hoverEnterEvent(event);
   }
 }
+
+void ChatLine::hoverLeaveEvent(QGraphicsSceneHoverEvent *event) {
+  if(_hoverItem) {
+    _hoverItem->hoverLeaveEvent(event);
+    _hoverItem = 0;
+  }
+}
+
+void ChatLine::hoverMoveEvent(QGraphicsSceneHoverEvent *event) {
+  ChatItem *item = mouseEventTargetItem(event->pos());
+  if(item)
+    item->hoverMoveEvent(event);
+}