#include "columnhandleitem.h"
#include "messagefilter.h"
#include "qtui.h"
-#include "qtuisettings.h"
+#include "qtuistyle.h"
+#include "chatviewsettings.h"
+#include "webpreviewitem.h"
const qreal minContentsWidth = 200;
-ChatScene::ChatScene(QAbstractItemModel *model, const QString &idString, QObject *parent)
- : QGraphicsScene(parent),
+ChatScene::ChatScene(QAbstractItemModel *model, const QString &idString, qreal width, QObject *parent)
+ : QGraphicsScene(0, 0, width, 0, parent),
_idString(idString),
- _width(0),
- _height(0),
_model(model),
_singleBufferScene(false),
+ _sceneRect(0, 0, width, 0),
+ _viewportHeight(0),
_selectingItem(0),
_selectionStart(-1),
- _isSelecting(false)
+ _isSelecting(false),
+ _lastBacklogSize(0)
{
MessageFilter *filter = qobject_cast<MessageFilter*>(model);
if(filter) {
_singleBufferScene = filter->isSingleBufferFilter();
}
- connect(this, SIGNAL(sceneRectChanged(const QRectF &)), this, SLOT(rectChanged(const QRectF &)));
+ ChatViewSettings defaultSettings;
+ int defaultFirstColHandlePos = defaultSettings.value("FirstColumnHandlePos", 80).toInt();
+ int defaultSecondColHandlePos = defaultSettings.value("SecondColumnHandlePos", 200).toInt();
- connect(model, SIGNAL(rowsInserted(const QModelIndex &, int, int)), this, SLOT(rowsInserted(const QModelIndex &, int, int)));
- connect(model, SIGNAL(modelAboutToBeReset()), this, SLOT(modelReset()));
- for(int i = 0; i < model->rowCount(); i++) {
- ChatLine *line = new ChatLine(i, model);
- _lines.append(line);
- addItem(line);
- }
-
- QtUiSettings s;
- int defaultFirstColHandlePos = s.value("ChatView/DefaultFirstColumnHandlePos", 80).toInt();
- int defaultSecondColHandlePos = s.value("ChatView/DefaultSecondColumnHandlePos", 200).toInt();
-
- firstColHandlePos = s.value(QString("ChatView/%1/FirstColumnHandlePos").arg(_idString),
- defaultFirstColHandlePos).toInt();
- secondColHandlePos = s.value(QString("ChatView/%1/SecondColumnHandlePos").arg(_idString),
- defaultSecondColHandlePos).toInt();
-
- firstColHandle = new ColumnHandleItem(QtUi::style()->firstColumnSeparator()); addItem(firstColHandle);
- secondColHandle = new ColumnHandleItem(QtUi::style()->secondColumnSeparator()); addItem(secondColHandle);
+ ChatViewSettings viewSettings(this);
+ firstColHandlePos = viewSettings.value("FirstColumnHandlePos", defaultFirstColHandlePos).toInt();
+ secondColHandlePos = viewSettings.value("SecondColumnHandlePos", defaultSecondColHandlePos).toInt();
+ firstColHandle = new ColumnHandleItem(QtUi::style()->firstColumnSeparator());
+ addItem(firstColHandle);
+ firstColHandle->setXPos(firstColHandlePos);
connect(firstColHandle, SIGNAL(positionChanged(qreal)), this, SLOT(handlePositionChanged(qreal)));
- connect(secondColHandle, SIGNAL(positionChanged(qreal)), this, SLOT(handlePositionChanged(qreal)));
+ connect(this, SIGNAL(sceneRectChanged(const QRectF &)), firstColHandle, SLOT(sceneRectChanged(const QRectF &)));
- firstColHandle->setXPos(firstColHandlePos);
- firstColHandle->setXLimits(0, secondColHandlePos);
+ secondColHandle = new ColumnHandleItem(QtUi::style()->secondColumnSeparator());
+ addItem(secondColHandle);
secondColHandle->setXPos(secondColHandlePos);
- secondColHandle->setXLimits(firstColHandlePos, width() - minContentsWidth);
+ connect(secondColHandle, SIGNAL(positionChanged(qreal)), this, SLOT(handlePositionChanged(qreal)));
+ connect(this, SIGNAL(sceneRectChanged(const QRectF &)), secondColHandle, SLOT(sceneRectChanged(const QRectF &)));
- emit heightChanged(height());
+ setHandleXLimits();
+
+ connect(model, SIGNAL(rowsInserted(const QModelIndex &, int, int)),
+ this, SLOT(rowsInserted(const QModelIndex &, int, int)));
+ connect(model, SIGNAL(rowsAboutToBeRemoved(const QModelIndex &, int, int)),
+ this, SLOT(rowsAboutToBeRemoved(const QModelIndex &, int, int)));
+
+ if(model->rowCount() > 0)
+ rowsInserted(QModelIndex(), 0, model->rowCount() - 1);
}
ChatScene::~ChatScene() {
-
}
void ChatScene::rowsInserted(const QModelIndex &index, int start, int end) {
Q_UNUSED(index);
- // maybe make this more efficient by prepending stuff with negative yval
- // dunno if that's worth not guranteeing that 0 is on the top...
- // TODO bulk inserts, iterators
+
+ clearWebPreview();
+
+// QModelIndex sidx = model()->index(start, 0);
+// QModelIndex eidx = model()->index(end, 0);
+// qDebug() << "rowsInserted" << start << end << "-" << sidx.data(MessageModel::MsgIdRole).value<MsgId>() << eidx.data(MessageModel::MsgIdRole).value<MsgId>();
+
qreal h = 0;
- qreal y = 0;
- if(_width && start > 0) y = _lines.value(start - 1)->y() + _lines.value(start - 1)->height();
+ qreal y = _sceneRect.y();
+ qreal width = _sceneRect.width();
+ bool atTop = true;
+ bool atBottom = false;
+ bool moveTop = false;
+
+ if(start > 0 && start < _lines.count()) {
+ y = _lines.value(start)->y();
+ atTop = false;
+ }
+ if(start == _lines.count()) {
+ y = _sceneRect.bottom();
+ atTop = false;
+ atBottom = true;
+ }
+
+ qreal contentsWidth = width - secondColumnHandle()->sceneRight();
+ qreal senderWidth = secondColumnHandle()->sceneLeft() - firstColumnHandle()->sceneRight();
+ qreal timestampWidth = firstColumnHandle()->sceneLeft();
+ QPointF contentsPos(secondColumnHandle()->sceneRight(), 0);
+ QPointF senderPos(firstColumnHandle()->sceneRight(), 0);
+
for(int i = start; i <= end; i++) {
- ChatLine *line = new ChatLine(i, model());
+ ChatLine *line = new ChatLine(i, model(),
+ width,
+ timestampWidth, senderWidth, contentsWidth,
+ senderPos, contentsPos);
+ line->setPos(0, y+h);
+ h += line->height();
_lines.insert(i, line);
addItem(line);
- if(_width > 0) {
- line->setPos(0, y+h);
- h += line->setGeometry(_width, firstColHandlePos, secondColHandlePos);
- }
}
+
// update existing items
for(int i = end+1; i < _lines.count(); i++) {
_lines[i]->setRow(i);
if(_lastSelectionRow >= start) _lastSelectionRow += offset;
}
- if(h > 0) {
- _height += h;
- for(int i = end+1; i < _lines.count(); i++) {
- _lines.value(i)->moveBy(0, h);
+ // neither pre- or append means we have to do dirty work: move items...
+ if(!(atTop || atBottom)) {
+ qreal offset = h;
+ int moveStart = 0;
+ int moveEnd = _lines.count() - 1;
+ // move top means: moving 0 to end (aka: end + 1)
+ // move top means: moving end + 1 to _lines.count() - 1 (aka: _lines.count() - (end + 1)
+ if(end + 1 < _lines.count() - end - 1) {
+ // move top part
+ moveTop = true;
+ offset = -offset;
+ moveEnd = end;
+ } else {
+ // move bottom part
+ moveStart = start;
+ }
+ ChatLine *line = 0;
+ for(int i = moveStart; i <= moveEnd; i++) {
+ line = _lines.at(i);
+ line->setPos(0, line->pos().y() + offset);
}
- setSceneRect(QRectF(0, 0, _width, _height));
- emit heightChanged(_height);
}
-}
-void ChatScene::modelReset() {
- foreach(ChatLine *line, _lines) {
- removeItem(line);
- delete line;
+ // update sceneRect
+ if(atTop || moveTop) {
+ updateSceneRect(_sceneRect.adjusted(0, -h, 0, 0));
+ } else {
+ updateSceneRect(_sceneRect.adjusted(0, 0, 0, h));
+ emit lastLineChanged(_lines.last());
}
- _lines.clear();
- setSceneRect(QRectF(0, 0, _width, 0));
- emit heightChanged(0);
+
}
-void ChatScene::setWidth(qreal w) {
- _width = w;
- _height = 0;
- foreach(ChatLine *line, _lines) {
- line->setPos(0, _height);
- _height += line->setGeometry(_width, firstColHandlePos, secondColHandlePos);
+void ChatScene::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end) {
+ Q_UNUSED(parent);
+
+ clearWebPreview();
+
+ qreal h = 0; // total height of removed items;
+
+ bool atTop = (start == 0);
+ bool atBottom = (end == _lines.count() - 1);
+ bool moveTop = false;
+
+ // remove items from scene
+ QList<ChatLine *>::iterator lineIter = _lines.begin() + start;
+ int lineCount = start;
+ while(lineIter != _lines.end() && lineCount <= end) {
+ h += (*lineIter)->height();
+ delete *lineIter;
+ lineIter = _lines.erase(lineIter);
+ lineCount++;
+ }
+
+ // update rows of remaining chatlines
+ for(int i = start; i < _lines.count(); i++) {
+ _lines.at(i)->setRow(i);
+ }
+
+ // update selection
+ if(_selectionStart >= 0) {
+ int offset = end - start + 1;
+ if(_selectionStart >= start)
+ _selectionStart -= offset;
+ if(_selectionEnd >= start)
+ _selectionEnd -= offset;
+ if(_firstSelectionRow >= start)
+ _firstSelectionRow -= offset;
+ if(_lastSelectionRow >= start)
+ _lastSelectionRow -= offset;
}
- setSceneRect(QRectF(0, 0, w, _height));
- secondColHandle->setXLimits(firstColHandlePos, width() - minContentsWidth);
- emit heightChanged(_height);
+
+ // neither removing at bottom or top means we have to move items...
+ if(!(atTop || atBottom)) {
+ qreal offset = h;
+ int moveStart = 0;
+ int moveEnd = _lines.count() - 1;
+ if(start < _lines.count() - start) {
+ // move top part
+ moveTop = true;
+ moveEnd = start - 1;
+ } else {
+ // move bottom part
+ moveStart = start;
+ offset = -offset;
+ }
+ ChatLine *line = 0;
+ for(int i = moveStart; i <= moveEnd; i++) {
+ line = _lines.at(i);
+ line->setPos(0, line->pos().y() + offset);
+ }
+ }
+
+ // update sceneRect
+ if(atTop || moveTop) {
+ updateSceneRect(_sceneRect.adjusted(0, h, 0, 0));
+ } else {
+ updateSceneRect(_sceneRect.adjusted(0, 0, 0, -h));
+ }
+}
+
+void ChatScene::updateForViewport(qreal width, qreal height) {
+ _viewportHeight = height;
+ setWidth(width);
}
-void ChatScene::rectChanged(const QRectF &rect) {
- firstColHandle->sceneRectChanged(rect);
- secondColHandle->sceneRectChanged(rect);
+// setWidth is used for 2 things:
+// a) updating the scene to fit the width of the corresponding view
+// b) to update the positions of the items if a columhandle has changed it's position
+// forceReposition is true in the second case
+// this method features some codeduplication for the sake of performance
+void ChatScene::setWidth(qreal width, bool forceReposition) {
+ if(width == _sceneRect.width() && !forceReposition)
+ return;
+
+// clock_t startT = clock();
+
+ qreal linePos = _sceneRect.y() + _sceneRect.height();
+ qreal yBottom = linePos;
+ QList<ChatLine *>::iterator lineIter = _lines.end();
+ QList<ChatLine *>::iterator lineIterBegin = _lines.begin();
+ ChatLine *line = 0;
+ qreal lineHeight = 0;
+ qreal contentsWidth = width - secondColumnHandle()->sceneRight();
+
+ if(forceReposition) {
+ qreal timestampWidth = firstColumnHandle()->sceneLeft();
+ qreal senderWidth = secondColumnHandle()->sceneLeft() - firstColumnHandle()->sceneRight();
+ QPointF senderPos(firstColumnHandle()->sceneRight(), 0);
+ QPointF contentsPos(secondColumnHandle()->sceneRight(), 0);
+ while(lineIter != lineIterBegin) {
+ lineIter--;
+ line = *lineIter;
+ lineHeight = line->setColumns(timestampWidth, senderWidth, contentsWidth, senderPos, contentsPos);
+ linePos -= lineHeight;
+ line->setPos(0, linePos);
+ }
+ } else {
+ while(lineIter != lineIterBegin) {
+ lineIter--;
+ line = *lineIter;
+ lineHeight = line->setGeometryByWidth(width, contentsWidth);
+ linePos -= lineHeight;
+ line->setPos(0, linePos);
+ }
+ }
+
+ updateSceneRect(QRectF(0, linePos, width, yBottom - linePos));
+ setHandleXLimits();
+
+// clock_t endT = clock();
+// qDebug() << "resized" << _lines.count() << "in" << (float)(endT - startT) / CLOCKS_PER_SEC << "sec";
}
void ChatScene::handlePositionChanged(qreal xpos) {
oldx = secondColHandlePos;
secondColHandlePos = xpos;
}
- QtUiSettings s;
- s.setValue(QString("ChatView/%1/FirstColumnHandlePos").arg(_idString), firstColHandlePos);
- s.setValue(QString("ChatView/%1/SecondColumnHandlePos").arg(_idString), secondColHandlePos);
- s.setValue(QString("ChatView/DefaultFirstColumnHandlePos"), firstColHandlePos);
- s.setValue(QString("ChatView/DefaultSecondColumnHandlePos"), secondColHandlePos);
- setWidth(width()); // readjust all chatlines
+ ChatViewSettings viewSettings(this);
+ viewSettings.setValue("FirstColumnHandlePos", firstColHandlePos);
+ viewSettings.setValue("SecondColumnHandlePos", secondColHandlePos);
+
+ ChatViewSettings defaultSettings;
+ defaultSettings.setValue("FirstColumnHandlePos", firstColHandlePos);
+ defaultSettings.setValue("SecondColumnHandlePos", secondColHandlePos);
+
+ setWidth(width(), true); // readjust all chatlines
// we get ugly redraw errors if we don't update this explicitly... :(
// width() should be the same for both handles, so just use firstColHandle regardless
- update(qMin(oldx, xpos) - firstColHandle->width()/2, 0, qMax(oldx, xpos) + firstColHandle->width()/2, height());
+ //update(qMin(oldx, xpos), 0, qMax(oldx, xpos) + firstColHandle->width(), height());
+}
+
+void ChatScene::setHandleXLimits() {
+ firstColHandle->setXLimits(0, secondColHandle->sceneLeft());
+ secondColHandle->setXLimits(firstColHandle->sceneRight(), width() - minContentsWidth);
}
void ChatScene::setSelectingItem(ChatItem *item) {
void ChatScene::updateSelection(const QPointF &pos) {
// This is somewhat hacky... we look at the contents item that is at the cursor's y position (ignoring x), since
// it has the full height. From this item, we can then determine the row index and hence the ChatLine.
- ChatItem *contentItem = static_cast<ChatItem *>(itemAt(QPointF(secondColHandlePos + secondColHandle->width()/2, pos.y())));
+ ChatItem *contentItem = static_cast<ChatItem *>(itemAt(QPointF(secondColHandle->sceneRight() + 1, pos.y())));
if(!contentItem) return;
int curRow = contentItem->row();
int curColumn;
- if(pos.x() > secondColHandlePos + secondColHandle->width()/2) curColumn = ChatLineModel::ContentsColumn;
+ if(pos.x() > secondColHandle->sceneRight()) curColumn = ChatLineModel::ContentsColumn;
else if(pos.x() > firstColHandlePos) curColumn = ChatLineModel::SenderColumn;
else curColumn = ChatLineModel::TimestampColumn;
_lastSelectionRow = curRow;
if(newstart == newend && minColumn == ChatLineModel::ContentsColumn) {
+ if(!_selectingItem) {
+ qWarning() << "WARNING: ChatScene::updateSelection() has a null _selectingItem, this should never happen! Please report.";
+ return;
+ }
_lines[curRow]->setSelected(false);
_isSelecting = false;
- Q_ASSERT(_selectingItem); // this seems to not always be true, but I have no idea why
- // adding this assert to make sure the occasional segfault is caused by this
_selectingItem->continueSelecting(_selectingItem->mapFromScene(pos));
}
}
_lines[l]->setSelected(false);
}
_selectionStart = -1;
- event->accept();
+ QGraphicsScene::mousePressEvent(event); // so we can start a new local selection
} else {
QGraphicsScene::mousePressEvent(event);
}
}
void ChatScene::requestBacklog() {
- static const int REQUEST_COUNT = 50;
+ static const int REQUEST_COUNT = 500;
int backlogSize = model()->rowCount();
if(isSingleBufferScene() && backlogSize != 0 && _lastBacklogSize + REQUEST_COUNT <= backlogSize) {
QModelIndex msgIdx = model()->index(0, 0);
}
int ChatScene::sectionByScenePos(int x) {
- if(x < firstColHandlePos)
+ if(x < firstColHandle->x())
return ChatLineModel::TimestampColumn;
- if(x < secondColHandlePos)
+ if(x < secondColHandle->x())
return ChatLineModel::SenderColumn;
return ChatLineModel::ContentsColumn;
}
+
+void ChatScene::updateSceneRect(const QRectF &rect) {
+ _sceneRect = rect;
+ setSceneRect(rect);
+}
+
+
+void ChatScene::loadWebPreview(ChatItem *parentItem, const QString &url, const QRectF &urlRect) {
+#ifndef HAVE_WEBKIT
+ Q_UNUSED(parentItem)
+ Q_UNUSED(url)
+ Q_UNUSED(urlRect)
+#else
+ if(webPreview.parentItem != parentItem)
+ webPreview.parentItem = parentItem;
+
+ if(webPreview.url != url) {
+ webPreview.url = url;
+ // load a new web view and delete the old one (if exists)
+ if(webPreview.previewItem) {
+ removeItem(webPreview.previewItem);
+ delete webPreview.previewItem;
+ }
+ webPreview.previewItem = new WebPreviewItem(url);
+ addItem(webPreview.previewItem);
+ }
+ if(webPreview.urlRect != urlRect) {
+ webPreview.urlRect = urlRect;
+ qreal previewY = urlRect.bottom();
+ qreal previewX = urlRect.x();
+ if(previewY + webPreview.previewItem->boundingRect().height() > sceneRect().bottom())
+ previewY = urlRect.y() - webPreview.previewItem->boundingRect().height();
+
+ if(previewX + webPreview.previewItem->boundingRect().width() > sceneRect().width())
+ previewX = sceneRect().right() - webPreview.previewItem->boundingRect().width();
+
+ webPreview.previewItem->setPos(previewX, previewY);
+ }
+#endif
+}
+
+void ChatScene::clearWebPreview(ChatItem *parentItem) {
+#ifndef HAVE_WEBKIT
+ Q_UNUSED(parentItem)
+#else
+ if(parentItem == 0 || webPreview.parentItem == parentItem) {
+ if(webPreview.previewItem) {
+ removeItem(webPreview.previewItem);
+ delete webPreview.previewItem;
+ webPreview.previewItem = 0;
+ }
+ webPreview.parentItem = 0;
+ webPreview.url = QString();
+ webPreview.urlRect = QRectF();
+ }
+#endif
+}
projects / quassel.git / blobdiff