#include "columnhandleitem.h"
#include "messagefilter.h"
#include "qtui.h"
-#include "qtuisettings.h"
+#include "chatviewsettings.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),
_selectingItem(0),
_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(rowsAboutToBeRemoved(const QModelIndex &, int, int)),
- this, SLOT(rowsAboutToBeRemoved(const QModelIndex &, int, int)));
-
- 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();
+ ChatViewSettings viewSettings(idString);
+ 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(this, SIGNAL(sceneRectChanged(const QRectF &)), firstColHandle, SLOT(sceneRectChanged(const QRectF &)));
secondColHandle = new ColumnHandleItem(QtUi::style()->secondColumnSeparator());
addItem(secondColHandle);
-
- connect(firstColHandle, SIGNAL(positionChanged(qreal)), this, SLOT(handlePositionChanged(qreal)));
+ secondColHandle->setXPos(secondColHandlePos);
connect(secondColHandle, SIGNAL(positionChanged(qreal)), this, SLOT(handlePositionChanged(qreal)));
+ connect(this, SIGNAL(sceneRectChanged(const QRectF &)), secondColHandle, SLOT(sceneRectChanged(const QRectF &)));
- firstColHandle->setXPos(firstColHandlePos);
- secondColHandle->setXPos(secondColHandlePos);
setHandleXLimits();
- emit heightChanged(height());
- emit heightChangedAt(0, height());
+ 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
qreal h = 0;
- qreal y = 0;
- if(_width && start > 0)
+ qreal y = sceneRect().y();
+ qreal width = sceneRect().width();
+ bool atTop = true;
+ bool atBottom = false;
+ bool moveTop = false;
+ bool hasWidth = (width != 0);
+
+ if(start > 0) {
y = _lines.value(start - 1)->y() + _lines.value(start - 1)->height();
+ atTop = false;
+ }
+ if(start == _lines.count())
+ atBottom = true;
- for(int i = start; i <= end; i++) {
+ for(int i = end; i >= start; i--) {
ChatLine *line = new ChatLine(i, model());
- _lines.insert(i, line);
+ _lines.insert(start, line);
addItem(line);
- if(_width > 0) {
- line->setPos(0, y+h);
- h += line->setGeometry(_width);
+ if(hasWidth) {
+ if(atTop) {
+ h -= line->setGeometry(width);
+ line->setPos(0, y+h);
+ } else {
+ line->setPos(0, y+h);
+ h += line->setGeometry(width);
+ }
}
}
+
// 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.at(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;
+ ChatLine *line = 0;
+ if(end > _lines.count() - end) {
+ // move top part
+ moveTop = true;
+ offset = -offset;
+ moveEnd = end;
+ } else {
+ // move bottom part
+ moveStart = start;
+ }
+ 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);
- emit heightChangedAt(_lines.at(start)->y(), h);
}
+
+ // update sceneRect
+ if(atTop || moveTop) {
+ setSceneRect(sceneRect().adjusted(0, h, 0, 0));
+ } else {
+ setSceneRect(sceneRect().adjusted(0, 0, 0, h));
+ emit sceneHeightChanged(h);
+ }
+
}
void ChatScene::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end) {
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;
_lastSelectionRow -= offset;
}
- // reposition remaining chatlines
- if(h > 0) {
- Q_ASSERT(_height >= h);
- _height -= h;
- for(int i = start; i < _lines.count(); i++) {
- _lines.at(i)->moveBy(0, -h);
+ // 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;
+ ChatLine *line = 0;
+ if(start > _lines.count() - end) {
+ // move top part
+ moveTop = true;
+ moveEnd = start - 1;
+ } else {
+ // move bottom part
+ moveStart = start;
+ offset = -offset;
+ }
+ 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);
- emit heightChangedAt(_lines.at(start)->y(), -h);
}
+
+ // update sceneRect
+ if(atTop || moveTop) {
+ setSceneRect(sceneRect().adjusted(0, h, 0, 0));
+ } else {
+ setSceneRect(sceneRect().adjusted(0, 0, 0, -h));
+ }
+
}
-void ChatScene::setWidth(qreal w) {
- qreal oldh = _height;
- _width = w;
- _height = 0;
+void ChatScene::setWidth(qreal width, bool forceReposition) {
+ if(width == sceneRect().width() && !forceReposition)
+ return;
+
+ qreal oldHeight = sceneRect().height();
+ qreal y = sceneRect().y();
+ qreal linePos = y;
+
foreach(ChatLine *line, _lines) {
- line->setPos(0, _height);
- _height += line->setGeometry(_width);
+ line->setPos(0, linePos);
+ linePos += line->setGeometry(width);
}
- setSceneRect(QRectF(0, 0, w, _height));
- setHandleXLimits();
- emit heightChanged(_height);
- emit heightChangedAt(0, _height - oldh);
-}
+ qreal height = linePos - y;
+
+ setSceneRect(QRectF(0, y, width, height));
+ setHandleXLimits();
-void ChatScene::rectChanged(const QRectF &rect) {
- firstColHandle->sceneRectChanged(rect);
- secondColHandle->sceneRectChanged(rect);
+ qreal dh = height - oldHeight;
+ if(dh > 0)
+ emit sceneHeightChanged(dh);
}
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(idString());
+ 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), 0, qMax(oldx, xpos) + firstColHandle->width(), height());