/***************************************************************************
- * Copyright (C) 2005-09 by the Quassel Project *
+ * Copyright (C) 2005-2019 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 "chatview.h"
+
+#include <algorithm>
+
#include <QGraphicsTextItem>
#include <QKeyEvent>
#include <QMenu>
#include <QScrollBar>
#include "bufferwidget.h"
+#include "chatline.h"
#include "chatscene.h"
-#include "chatview.h"
#include "client.h"
+#include "clientignorelistmanager.h"
#include "messagefilter.h"
#include "qtui.h"
#include "qtuistyle.h"
-#include "clientignorelistmanager.h"
+#include "util.h"
-ChatView::ChatView(BufferId bufferId, QWidget *parent)
- : QGraphicsView(parent),
- AbstractChatView(),
- _bufferContainer(0),
- _currentScaleFactor(1),
- _invalidateFilter(false)
+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);
+ QList<BufferId> filterList;
+ filterList.append(bufferId);
+ auto* filter = new MessageFilter(Client::messageModel(), filterList, this);
+ init(filter);
}
-ChatView::ChatView(MessageFilter *filter, QWidget *parent)
- : QGraphicsView(parent),
- AbstractChatView(),
- _bufferContainer(0),
- _currentScaleFactor(1),
- _invalidateFilter(false)
+ChatView::ChatView(MessageFilter* filter, QWidget* parent)
+ : QGraphicsView(parent)
+ , AbstractChatView()
{
- init(filter);
+ init(filter);
+}
+
+void ChatView::init(MessageFilter* filter)
+{
+ _bufferContainer = nullptr;
+ _currentScaleFactor = 1;
+ _invalidateFilter = false;
+
+ setAttribute(Qt::WA_AcceptTouchEvents);
+ 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, &QTimer::timeout, this, &ChatView::scrollTimerTimeout);
+
+ _scene = new ChatScene(filter, filter->idString(), viewport()->width(), this);
+ connect(_scene, &QGraphicsScene::sceneRectChanged, this, &ChatView::adjustSceneRect);
+ connect(_scene, &ChatScene::lastLineChanged, this, &ChatView::lastLineChanged);
+ connect(_scene, &ChatScene::mouseMoveWhileSelecting, this, &ChatView::mouseMoveWhileSelecting);
+ setScene(_scene);
+
+ connect(verticalScrollBar(), &QAbstractSlider::valueChanged, this, &ChatView::verticalScrollbarChanged);
+ _lastScrollbarPos = verticalScrollBar()->maximum();
+
+ connect(Client::networkModel(), &NetworkModel::markerLineSet, this, &ChatView::markerLineSet);
+
+ // only connect if client is synched with a core
+ if (Client::isConnected())
+ connect(Client::ignoreListManager(), &ClientIgnoreListManager::ignoreListChanged, this, &ChatView::invalidateFilter);
}
-void ChatView::init(MessageFilter *filter) {
- setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
- setAlignment(Qt::AlignBottom);
- setInteractive(true);
- //setOptimizationFlags(QGraphicsView::DontClipPainter | QGraphicsView::DontAdjustForAntialiasing);
- // setOptimizationFlags(QGraphicsView::DontAdjustForAntialiasing);
- setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
- // setTransformationAnchor(QGraphicsView::NoAnchor);
- setTransformationAnchor(QGraphicsView::AnchorViewCenter);
+bool ChatView::event(QEvent* event)
+{
+ if (event->type() == QEvent::KeyPress) {
+ auto* 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::TouchBegin && ((QTouchEvent*)event)->device()->type() == QTouchDevice::TouchScreen) {
+ // Enable scrolling by draging, disable selecting/clicking content
+ setDragMode(QGraphicsView::ScrollHandDrag);
+ setInteractive(false);
+ // if scrollbar is not visible we need to request backlog below else we need to accept
+ // the event now (return true) so that we will receive TouchUpdate and TouchEnd/TouchCancel
+ if (verticalScrollBar()->isVisible())
+ return true;
+ }
- _scrollTimer.setInterval(100);
- _scrollTimer.setSingleShot(true);
- connect(&_scrollTimer, SIGNAL(timeout()), SLOT(scrollTimerTimeout()));
+ if (event->type() == QEvent::TouchEnd || event->type() == QEvent::TouchCancel) {
+ // End scroll and reset settings to default
+ setDragMode(QGraphicsView::NoDrag);
+ setInteractive(true);
+ _firstTouchUpdateHappened = false;
+ return true;
+ }
- _scene = new ChatScene(filter, filter->idString(), viewport()->width() - 4, this); // see below: resizeEvent()
- connect(_scene, SIGNAL(sceneRectChanged(const QRectF &)), this, SLOT(sceneRectChanged(const QRectF &)));
- connect(_scene, SIGNAL(lastLineChanged(QGraphicsItem *, qreal)), this, SLOT(lastLineChanged(QGraphicsItem *, qreal)));
- connect(_scene, SIGNAL(mouseMoveWhileSelecting(const QPointF &)), this, SLOT(mouseMoveWhileSelecting(const QPointF &)));
- setScene(_scene);
+ if (event->type() == QEvent::TouchUpdate) {
+ if (!_firstTouchUpdateHappened) {
+ // After the first movement of a Touch-Point, calculate the distance in both axis
+ // and if the point moved more horizontally abort scroll.
+ QTouchEvent::TouchPoint p = ((QTouchEvent*)event)->touchPoints().at(0);
+ double dx = qAbs(p.lastPos().x() - p.pos().x());
+ double dy = qAbs(p.lastPos().y() - p.pos().y());
+ if (dx > dy) {
+ setDragMode(QGraphicsView::NoDrag);
+ setInteractive(true);
+ }
+ _firstTouchUpdateHappened = true;
+ }
+ // Applying the movement happens automatically by the drag-mode
+ }
+ if (event->type() == QEvent::Wheel
+ || (event->type() == QEvent::TouchBegin && ((QTouchEvent*)event)->device()->type() == QTouchDevice::TouchScreen)
+ || event->type() == QEvent::TouchUpdate) {
+ if (!verticalScrollBar()->isVisible()) {
+ scene()->requestBacklog();
+ return true;
+ }
+ }
- connect(verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(verticalScrollbarChanged(int)));
+ if (event->type() == QEvent::Show) {
+ if (_invalidateFilter)
+ invalidateFilter();
+ }
- // only connect if client is synched with a core
- if(Client::isSynced())
- connect(Client::ignoreListManager(), SIGNAL(ignoreListChanged()), this, SLOT(invalidateFilter()));
+ return QGraphicsView::event(event);
}
-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;
+void ChatView::resizeEvent(QResizeEvent* event)
+{
+ // if view is currently scrolled to bottom, we want it that way after resizing
+ bool atBottom = (_lastScrollbarPos == verticalScrollBar()->maximum());
+
+ QGraphicsView::resizeEvent(event);
+
+ // if scrolling to bottom, do it immediately.
+ if (atBottom) {
+ // we can reduce viewport updates if we scroll to the bottom allready at the beginning
+ verticalScrollBar()->setValue(verticalScrollBar()->maximum());
}
- }
- if(event->type() == QEvent::Wheel) {
- if(!verticalScrollBar()->isVisible()) {
- scene()->requestBacklog();
- return true;
+ scene()->updateForViewport(viewport()->width(), viewport()->height());
+ adjustSceneRect();
+
+ if (atBottom) {
+ _lastScrollbarPos = verticalScrollBar()->maximum();
+ verticalScrollBar()->setValue(verticalScrollBar()->maximum());
}
- }
+ checkChatLineCaches();
+}
- if(event->type() == QEvent::Show) {
- if(_invalidateFilter)
- invalidateFilter();
- }
+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));
+}
- return QGraphicsView::event(event);
+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::resizeEvent(QResizeEvent *event) {
- QGraphicsView::resizeEvent(event);
+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()));
+}
- // we can reduce viewport updates if we scroll to the bottom allready at the beginning
- 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());
+ }
+}
- // FIXME: without the hardcoded -4 Qt reserves space for a horizontal scrollbar even though it's disabled permanently.
- // this does only occur on QtX11 (at least not on Qt for Mac OS). Seems like a Qt Bug.
- scene()->updateForViewport(viewport()->width() - 4, viewport()->height());
+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;
- _lastScrollbarPos = verticalScrollBar()->maximum();
- verticalScrollBar()->setValue(verticalScrollBar()->maximum());
+ // FIXME: Fugly workaround for the ChatView scrolling up 1px on buffer switch
+ if (vbar->maximum() - newPos <= 2)
+ vbar->setValue(vbar->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();
+MsgId ChatView::lastMsgId() const
+{
+ if (!scene())
+ return {};
+
+ QAbstractItemModel* model = scene()->model();
+ if (!model || model->rowCount() == 0)
+ return {};
- if(_scrollOffset && !_scrollTimer.isActive())
- _scrollTimer.start();
+ return model->index(model->rowCount() - 1, 0).data(MessageModel::MsgIdRole).value<MsgId>();
}
-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()));
+MsgId ChatView::lastVisibleMsgId() const
+{
+ ChatLine* line = lastVisibleChatLine();
+
+ if (line)
+ return line->msgId();
+
+ return {};
}
-void ChatView::lastLineChanged(QGraphicsItem *chatLine, qreal offset) {
- Q_UNUSED(chatLine)
- // disabled until further testing/discussion
- //if(!scene()->isScrollingAllowed())
- // return;
+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)) {
+ auto* line = qgraphicsitem_cast<ChatLine*>(item);
+ if (line)
+ result.insert(line);
+ }
+ return result;
+}
- QAbstractSlider *vbar = verticalScrollBar();
- Q_ASSERT(vbar);
- if(vbar->maximum() - vbar->value() <= (offset + 5) * _currentScaleFactor ) { // 5px grace area
- vbar->setValue(vbar->maximum());
- }
+QList<ChatLine*> ChatView::visibleChatLinesSorted(Qt::ItemSelectionMode mode) const
+{
+ QList<ChatLine*> result = visibleChatLines(mode).values();
+ std::sort(result.begin(), result.end(), chatLinePtrLessThan);
+ return result;
}
-void ChatView::verticalScrollbarChanged(int newPos) {
- QAbstractSlider *vbar = verticalScrollBar();
- Q_ASSERT(vbar);
+ChatLine* ChatView::lastVisibleChatLine(bool ignoreDayChange) const
+{
+ if (!scene())
+ return nullptr;
- // 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());
+ QAbstractItemModel* model = scene()->model();
+ if (!model || model->rowCount() == 0)
+ return nullptr;
- if(relativePos < 20) {
- scene()->requestBacklog();
+ 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();
}
- }
- _lastScrollbarPos = newPos;
- // FIXME: Fugly workaround for the ChatView scrolling up 1px on buffer switch
- if(vbar->maximum() - newPos <= 2)
- vbar->setValue(vbar->maximum());
+ if (row >= 0)
+ return scene()->chatLine(row);
+
+ return nullptr;
}
-MsgId ChatView::lastMsgId() const {
- if(!scene())
- return MsgId();
+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);
+}
- QAbstractItemModel *model = scene()->model();
- if(!model || model->rowCount() == 0)
- return MsgId();
+void ChatView::markerLineSet(BufferId buffer, MsgId msgId)
+{
+ if (!scene()->isSingleBufferScene() || scene()->singleBufferId() != buffer)
+ return;
- return model->data(model->index(model->rowCount() - 1, 0), MessageModel::MsgIdRole).value<MsgId>();
+ scene()->setMarkerLine(msgId);
+ scene()->setMarkerLineVisible(true);
}
-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::jumpToMarkerLine(bool requestBacklog)
+{
+ scene()->jumpToMarkerLine(requestBacklog);
}
-void ChatView::zoomIn() {
+void ChatView::addActionsToMenu(QMenu* menu, const QPointF& pos)
+{
+ // zoom actions
+ auto* 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() {
+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);
+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::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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