X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fqtui%2Fchatview.cpp;h=cc5009b9f9675ea6a1fb25bf66e7509760e4772f;hp=ffd9e72a8782700e64f5426f540955875420d273;hb=56288a13972bf8466b57c9d5d1ec382fc7e287cc;hpb=e528271e366acaa788b420bdfab8e1dd03b43e12

diff --git a/src/qtui/chatview.cpp b/src/qtui/chatview.cpp
index ffd9e72a..cc5009b9 100644
--- a/src/qtui/chatview.cpp
+++ b/src/qtui/chatview.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   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  *
@@ -19,96 +19,336 @@
  ***************************************************************************/
 
 #include <QGraphicsTextItem>
+#include <QKeyEvent>
+#include <QMenu>
 #include <QScrollBar>
 
-#include "buffer.h"
-#include "chatlinemodelitem.h"
+#include "bufferwidget.h"
 #include "chatscene.h"
 #include "chatview.h"
 #include "client.h"
 #include "messagefilter.h"
-#include "quasselui.h"
+#include "qtui.h"
+#include "qtuistyle.h"
+#include "clientignorelistmanager.h"
 
-ChatView::ChatView(Buffer *buf, QWidget *parent) : QGraphicsView(parent), AbstractChatView() {
+#include "chatline.h"
+
+ChatView::ChatView(BufferId bufferId, QWidget *parent)
+  : QGraphicsView(parent),
+    AbstractChatView()
+{
   QList<BufferId> filterList;
-  filterList.append(buf->bufferInfo().bufferId());
+  filterList.append(bufferId);
   MessageFilter *filter = new MessageFilter(Client::messageModel(), filterList, this);
   init(filter);
-
 }
 
-ChatView::ChatView(MessageFilter *filter, QWidget *parent) : QGraphicsView(parent), AbstractChatView() {
+ChatView::ChatView(MessageFilter *filter, QWidget *parent)
+  : QGraphicsView(parent),
+    AbstractChatView()
+{
   init(filter);
 }
 
 void ChatView::init(MessageFilter *filter) {
+  _bufferContainer = 0;
+  _currentScaleFactor = 1;
+  _invalidateFilter = false;
+
   setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
-  setAlignment(Qt::AlignBottom);
+  setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
+  setAlignment(Qt::AlignLeft|Qt::AlignBottom);
   setInteractive(true);
+  //setOptimizationFlags(QGraphicsView::DontClipPainter | QGraphicsView::DontAdjustForAntialiasing);
+  // setOptimizationFlags(QGraphicsView::DontAdjustForAntialiasing);
+  setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
+  // setTransformationAnchor(QGraphicsView::NoAnchor);
+  setTransformationAnchor(QGraphicsView::AnchorViewCenter);
+
+  _scrollTimer.setInterval(100);
+  _scrollTimer.setSingleShot(true);
+  connect(&_scrollTimer, SIGNAL(timeout()), SLOT(scrollTimerTimeout()));
 
-  _scene = new ChatScene(filter, filter->idString(), this);
-  connect(_scene, SIGNAL(heightChanged(qreal)), this, SLOT(sceneHeightChanged(qreal)));
+  _scene = new ChatScene(filter, filter->idString(), viewport()->width(), this);
+  connect(_scene, SIGNAL(sceneRectChanged(const QRectF &)), this, SLOT(adjustSceneRect()));
+  connect(_scene, SIGNAL(lastLineChanged(QGraphicsItem *, qreal)), this, SLOT(lastLineChanged(QGraphicsItem *, qreal)));
+  connect(_scene, SIGNAL(mouseMoveWhileSelecting(const QPointF &)), this, SLOT(mouseMoveWhileSelecting(const QPointF &)));
   setScene(_scene);
-}
 
-ChatView::~ChatView() {
+  connect(verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(verticalScrollbarChanged(int)));
+  _lastScrollbarPos = verticalScrollBar()->value();
+
+  connect(Client::networkModel(), SIGNAL(markerLineSet(BufferId,MsgId)), SLOT(markerLineSet(BufferId,MsgId)));
 
+  // only connect if client is synched with a core
+  if(Client::isConnected())
+    connect(Client::ignoreListManager(), SIGNAL(ignoreListChanged()), this, SLOT(invalidateFilter()));
 }
 
+bool ChatView::event(QEvent *event) {
+  if(event->type() == QEvent::KeyPress) {
+    QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
+    switch(keyEvent->key()) {
+    case Qt::Key_Up:
+    case Qt::Key_Down:
+    case Qt::Key_PageUp:
+    case Qt::Key_PageDown:
+      if(!verticalScrollBar()->isVisible()) {
+        scene()->requestBacklog();
+        return true;
+      }
+    default:
+      break;
+    }
+  }
 
-ChatScene *ChatView::scene() const {
-  return _scene;
+  if(event->type() == QEvent::Wheel) {
+    if(!verticalScrollBar()->isVisible()) {
+      scene()->requestBacklog();
+      return true;
+    }
+  }
+
+  if(event->type() == QEvent::Show) {
+    if(_invalidateFilter)
+      invalidateFilter();
+  }
+
+  return QGraphicsView::event(event);
 }
 
 void ChatView::resizeEvent(QResizeEvent *event) {
-  scene()->setWidth(event->size().width() - 2);  // FIXME figure out why we have to hardcode the -2 here
+  QGraphicsView::resizeEvent(event);
+
+  // FIXME: do we really need to scroll down on resize?
+
+  // we can reduce viewport updates if we scroll to the bottom allready at the beginning
   verticalScrollBar()->setValue(verticalScrollBar()->maximum());
+  scene()->updateForViewport(viewport()->width(), viewport()->height());
+  adjustSceneRect();
+
+  _lastScrollbarPos = verticalScrollBar()->maximum();
+  verticalScrollBar()->setValue(verticalScrollBar()->maximum());
+
+  checkChatLineCaches();
 }
 
-void ChatView::sceneHeightChanged(qreal h) {
-  Q_UNUSED(h)
-  bool scrollable = verticalScrollBar()->value() == verticalScrollBar()->maximum();
-  setSceneRect(scene()->sceneRect());
-  if(scrollable) verticalScrollBar()->setValue(verticalScrollBar()->maximum());
+void ChatView::adjustSceneRect() {
+  // Workaround for QTBUG-6322
+  // If the viewport's sceneRect() is (almost) as wide as as the viewport itself,
+  // Qt wants to reserve space for scrollbars even if they're turned off, resulting in
+  // an ugly white space at the bottom of the ChatView.
+  // Since the view's scene's width actually doesn't matter at all, we just adjust it
+  // by some hopefully large enough value to avoid this problem.
+
+  setSceneRect(scene()->sceneRect().adjusted(0, 0, -25 ,0));
 }
 
-void ChatView::clear()
-{
+void ChatView::mouseMoveWhileSelecting(const QPointF &scenePos) {
+  int y = (int)mapFromScene(scenePos).y();
+  _scrollOffset = 0;
+  if(y < 0)
+    _scrollOffset = y;
+  else if(y > height())
+    _scrollOffset = y - height();
+
+  if(_scrollOffset && !_scrollTimer.isActive())
+    _scrollTimer.start();
 }
 
-void ChatView::prependMsg(AbstractUiMsg *msg) {
-  //ChatLine *line = dynamic_cast<ChatLine*>(msg);
-  //Q_ASSERT(line);
-  //prependChatLine(line);
+void ChatView::scrollTimerTimeout() {
+  // scroll view
+  QAbstractSlider *vbar = verticalScrollBar();
+  if(_scrollOffset < 0 && vbar->value() > 0)
+    vbar->setValue(qMax(vbar->value() + _scrollOffset, 0));
+  else if(_scrollOffset > 0 && vbar->value() < vbar->maximum())
+    vbar->setValue(qMin(vbar->value() + _scrollOffset, vbar->maximum()));
 }
 
-void ChatView::prependChatLine(ChatLine *line) {
-  //qDebug() << "prepending";
+void ChatView::lastLineChanged(QGraphicsItem *chatLine, qreal offset) {
+  Q_UNUSED(chatLine)
+  // disabled until further testing/discussion
+  //if(!scene()->isScrollingAllowed())
+  //  return;
+
+  QAbstractSlider *vbar = verticalScrollBar();
+  Q_ASSERT(vbar);
+  if(vbar->maximum() - vbar->value() <= (offset + 5) * _currentScaleFactor ) { // 5px grace area
+    vbar->setValue(vbar->maximum());
+  }
 }
 
-void ChatView::prependChatLines(QList<ChatLine *> clist) {
+void ChatView::verticalScrollbarChanged(int newPos) {
+  QAbstractSlider *vbar = verticalScrollBar();
+  Q_ASSERT(vbar);
 
+  // check for backlog request
+  if(newPos < _lastScrollbarPos) {
+    int relativePos = 100;
+    if(vbar->maximum() - vbar->minimum() != 0)
+      relativePos = (newPos - vbar->minimum()) * 100 / (vbar->maximum() - vbar->minimum());
+
+    if(relativePos < 20) {
+      scene()->requestBacklog();
+    }
+  }
+  _lastScrollbarPos = newPos;
+
+  // FIXME: Fugly workaround for the ChatView scrolling up 1px on buffer switch
+  if(vbar->maximum() - newPos <= 2)
+    vbar->setValue(vbar->maximum());
 }
 
-void ChatView::appendMsg(AbstractUiMsg *msg) {
-  //ChatLine *line = dynamic_cast<ChatLine*>(msg);
-  //Q_ASSERT(line);
-  //appendChatLine(line);
+MsgId ChatView::lastMsgId() const {
+  if(!scene())
+    return MsgId();
+
+  QAbstractItemModel *model = scene()->model();
+  if(!model || model->rowCount() == 0)
+    return MsgId();
+
+  return model->index(model->rowCount() - 1, 0).data(MessageModel::MsgIdRole).value<MsgId>();
 }
 
-void ChatView::appendChatLine(ChatLine *line) {
-  //qDebug() << "appending";
+MsgId ChatView::lastVisibleMsgId() const {
+  ChatLine *line = lastVisibleChatLine();
+
+  if(line)
+    return line->msgId();
+
+  return MsgId();
 }
 
+bool chatLinePtrLessThan(ChatLine *one, ChatLine *other) {
+  return one->row() < other->row();
+}
 
-void ChatView::appendChatLines(QList<ChatLine *> list) {
-  //foreach(ChatLine *line, list) {
+// TODO: figure out if it's cheaper to use a cached list (that we'd need to keep updated)
+QSet<ChatLine *> ChatView::visibleChatLines(Qt::ItemSelectionMode mode) const {
+  QSet<ChatLine *> result;
+  foreach(QGraphicsItem *item, items(viewport()->rect().adjusted(-1, -1, 1, 1), mode)) {
+    ChatLine *line = qgraphicsitem_cast<ChatLine *>(item);
+    if(line)
+      result.insert(line);
+  }
+  return result;
+}
 
-  //}
+QList<ChatLine *> ChatView::visibleChatLinesSorted(Qt::ItemSelectionMode mode) const {
+  QList<ChatLine *> result = visibleChatLines(mode).toList();
+  qSort(result.begin(), result.end(), chatLinePtrLessThan);
+  return result;
 }
 
-void ChatView::setContents(const QList<AbstractUiMsg *> &list) {
-  //qDebug() << "setting" << list.count();
-  //appendChatLines(list);
+ChatLine *ChatView::lastVisibleChatLine(bool ignoreDayChange) const {
+  if(!scene())
+    return 0;
+
+  QAbstractItemModel *model = scene()->model();
+  if(!model || model->rowCount() == 0)
+    return 0;
+
+  int row = -1;
+
+  QSet<ChatLine *> visibleLines = visibleChatLines(Qt::ContainsItemBoundingRect);
+  foreach(ChatLine *line, visibleLines) {
+    if(line->row() > row && (ignoreDayChange? line->msgType() != Message::DayChange : true))
+      row = line->row();
+  }
+
+  if(row >= 0)
+    return scene()->chatLine(row);
+
+  return 0;
+}
+
+void ChatView::setMarkerLineVisible(bool visible) {
+  scene()->setMarkerLineVisible(visible);
+}
+
+void ChatView::setMarkerLine(MsgId msgId) {
+  if(!scene()->isSingleBufferScene())
+    return;
+
+  BufferId bufId = scene()->singleBufferId();
+  Client::setMarkerLine(bufId, msgId);
+}
+
+void ChatView::markerLineSet(BufferId buffer, MsgId msgId) {
+  if(!scene()->isSingleBufferScene() || scene()->singleBufferId() != buffer)
+    return;
+
+  scene()->setMarkerLine(msgId);
+  scene()->setMarkerLineVisible(true);
+}
+
+void ChatView::jumpToMarkerLine(bool requestBacklog) {
+  scene()->jumpToMarkerLine(requestBacklog);
+}
+
+void ChatView::addActionsToMenu(QMenu *menu, const QPointF &pos) {
+  // zoom actions
+  BufferWidget *bw = qobject_cast<BufferWidget *>(bufferContainer());
+  if(bw) {
+    bw->addActionsToMenu(menu, pos);
+    menu->addSeparator();
+  }
+}
+
+void ChatView::zoomIn() {
+    _currentScaleFactor *= 1.2;
+    scale(1.2, 1.2);
+    scene()->setWidth(viewport()->width() / _currentScaleFactor - 2);
+}
+
+void ChatView::zoomOut() {
+    _currentScaleFactor /= 1.2;
+    scale(1 / 1.2, 1 / 1.2);
+    scene()->setWidth(viewport()->width() / _currentScaleFactor - 2);
+}
+
+void ChatView::zoomOriginal() {
+    scale(1/_currentScaleFactor, 1/_currentScaleFactor);
+    _currentScaleFactor = 1;
+    scene()->setWidth(viewport()->width() - 2);
 }
 
+void ChatView::invalidateFilter() {
+  // if this is the currently selected chatview
+  // invalidate immediately
+  if(isVisible()) {
+    _scene->filter()->invalidateFilter();
+    _invalidateFilter = false;
+  }
+  // otherwise invalidate whenever the view is shown
+  else {
+    _invalidateFilter = true;
+  }
+}
+
+void ChatView::scrollContentsBy(int dx, int dy) {
+  QGraphicsView::scrollContentsBy(dx, dy);
+  checkChatLineCaches();
+}
+
+void ChatView::setHasCache(ChatLine *line, bool hasCache) {
+  if(hasCache)
+    _linesWithCache.insert(line);
+  else
+    _linesWithCache.remove(line);
+}
+
+void ChatView::checkChatLineCaches() {
+  qreal top = mapToScene(viewport()->rect().topLeft()).y() - 10; // some grace area to avoid premature cleaning
+  qreal bottom = mapToScene(viewport()->rect().bottomRight()).y() + 10;
+  QSet<ChatLine *>::iterator iter = _linesWithCache.begin();
+  while(iter != _linesWithCache.end()) {
+    ChatLine *line = *iter;
+    if(line->pos().y() + line->height() < top || line->pos().y() > bottom) {
+      line->clearCache();
+      iter = _linesWithCache.erase(iter);
+    } else
+      ++iter;
+  }
+}