/***************************************************************************
- * 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 *
***************************************************************************/
#include <QGraphicsTextItem>
+#include <QKeyEvent>
+#include <QMenu>
#include <QScrollBar>
-#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"
+
+#include "chatline.h"
ChatView::ChatView(BufferId bufferId, QWidget *parent)
: QGraphicsView(parent),
}
void ChatView::init(MessageFilter *filter) {
+ _bufferContainer = 0;
+ _currentScaleFactor = 1;
+ _invalidateFilter = false;
+ _markerLineVisible = true;
+ _markedLine = 0;
+
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
- setAlignment(Qt::AlignBottom);
+ setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
+ setAlignment(Qt::AlignLeft|Qt::AlignBottom);
setInteractive(true);
//setOptimizationFlags(QGraphicsView::DontClipPainter | QGraphicsView::DontAdjustForAntialiasing);
- setOptimizationFlags(QGraphicsView::DontAdjustForAntialiasing);
+ // setOptimizationFlags(QGraphicsView::DontAdjustForAntialiasing);
setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
- setTransformationAnchor(QGraphicsView::NoAnchor);
+ // 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() - 2, this); // see below: resizeEvent()
- connect(_scene, SIGNAL(sceneRectChanged(const QRectF &)), this, SLOT(sceneRectChanged(const QRectF &)));
- connect(_scene, SIGNAL(lastLineChanged(QGraphicsItem *)), this, SLOT(lastLineChanged(QGraphicsItem *)));
+ _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()));
+}
+
+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);
}
void ChatView::resizeEvent(QResizeEvent *event) {
QGraphicsView::resizeEvent(event);
- // FIXME: without the hardcoded -2 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() - 2, viewport()->height());
+ // 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());
}
-void ChatView::lastLineChanged(QGraphicsItem *chatLine) {
+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::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::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() <= chatLine->boundingRect().height() + 5) { // 5px grace area
+ if(vbar->maximum() - vbar->value() <= (offset + 5) * _currentScaleFactor ) { // 5px grace area
vbar->setValue(vbar->maximum());
}
}
}
}
_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(!model || model->rowCount() == 0)
return MsgId();
- return model->data(model->index(model->rowCount() - 1, 0), MessageModel::MsgIdRole).value<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();
+}
+
+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;
+}
+
+ChatLine *ChatView::lastVisibleChatLine() 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)
+ row = line->row();
+ }
+
+ if(row >= 0)
+ return scene()->chatLine(row);
+
+ return 0;
+}
+
+void ChatView::setMarkerLineVisible(bool visible) {
+ if(visible != _markerLineVisible) {
+ _markerLineVisible = visible;
+ }
+}
+
+void ChatView::setMarkedLine(ChatLine *line) {
+ if(_markedLine == line)
+ return;
+
+ if(!scene()->isSingleBufferScene())
+ return;
+
+ if(line) {
+ BufferId bufId = scene()->singleBufferId();
+ Client::setMarkerLine(bufId, line->msgId());
+ }
+}
+
+void ChatView::markerLineSet(BufferId buffer, MsgId msg) {
+ if(!scene()->isSingleBufferScene() || scene()->singleBufferId() != buffer)
+ return;
+
+ ChatLine *newLine = scene()->chatLine(msg);
+ if(_markedLine == newLine)
+ return;
+
+ ChatLine *oldLine = _markedLine;
+ _markedLine = newLine;
+
+ if(oldLine)
+ oldLine->update();
+
+ if(newLine) {
+ setMarkerLineVisible(true);
+ newLine->update();
+ }
+}
+
+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;
+ }
}