/***************************************************************************
- * Copyright (C) 2005-08 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 <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() {
- QList<BufferId> filterList;
- filterList.append(buf->bufferInfo().bufferId());
- MessageFilter *filter = new MessageFilter(Client::messageModel(), filterList, this);
- init(filter);
+#include "chatline.h"
+ChatView::ChatView(BufferId bufferId, QWidget *parent)
+ : QGraphicsView(parent),
+ AbstractChatView()
+{
+ QList<BufferId> filterList;
+ filterList.append(bufferId);
+ MessageFilter *filter = new MessageFilter(Client::messageModel(), filterList, this);
+ init(filter);
}
-ChatView::ChatView(MessageFilter *filter, QWidget *parent) : QGraphicsView(parent), AbstractChatView() {
- init(filter);
+
+ChatView::ChatView(MessageFilter *filter, QWidget *parent)
+ : QGraphicsView(parent),
+ AbstractChatView()
+{
+ init(filter);
}
-void ChatView::init(MessageFilter *filter) {
- setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
- setAlignment(Qt::AlignBottom);
- setInteractive(true);
- _scene = new ChatScene(filter, filter->idString(), this);
- connect(_scene, SIGNAL(heightChanged(qreal)), this, SLOT(sceneHeightChanged(qreal)));
- setScene(_scene);
+void ChatView::init(MessageFilter *filter)
+{
+ _bufferContainer = 0;
+ _currentScaleFactor = 1;
+ _invalidateFilter = false;
+
+ setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+ 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(), 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);
+
+ 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()));
}
-ChatView::~ChatView() {
+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;
+ }
+ }
+
+ if (event->type() == QEvent::Wheel) {
+ if (!verticalScrollBar()->isVisible()) {
+ scene()->requestBacklog();
+ return true;
+ }
+ }
+
+ if (event->type() == QEvent::Show) {
+ if (_invalidateFilter)
+ invalidateFilter();
+ }
+
+ return QGraphicsView::event(event);
}
-ChatScene *ChatView::scene() const {
- return _scene;
+void ChatView::resizeEvent(QResizeEvent *event)
+{
+ 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::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::resizeEvent(QResizeEvent *event) {
- scene()->setWidth(event->size().width() - 2); // FIXME figure out why we have to hardcode the -2 here
- verticalScrollBar()->setValue(verticalScrollBar()->maximum());
+
+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::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::sceneHeightChanged(qreal h) {
- Q_UNUSED(h)
- bool scrollable = qAbs(verticalScrollBar()->value() - verticalScrollBar()->maximum()) <= 2; // be a bit tolerant here, also FIXME (why we need this?)
- setSceneRect(scene()->sceneRect());
- if(scrollable) verticalScrollBar()->setValue(verticalScrollBar()->maximum());
+
+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::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());
+}
+
+
+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>();
+}
+
+
+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();
+}
+
+
+// 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;
}
-void ChatView::clear()
+
+QList<ChatLine *> ChatView::visibleChatLinesSorted(Qt::ItemSelectionMode mode) const
+{
+ QList<ChatLine *> result = visibleChatLines(mode).toList();
+ qSort(result.begin(), result.end(), chatLinePtrLessThan);
+ return result;
+}
+
+
+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;
+ }
}
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