#include "chatscene.h"
#include "quasselui.h"
-ChatScene::ChatScene(MessageModel *model, QObject *parent) : QGraphicsScene(parent), _model(model) {
+ChatScene::ChatScene(QAbstractItemModel *model, QObject *parent) : QGraphicsScene(parent), _model(model) {
+ _width = 0;
+ _timestampWidth = 60;
+ _senderWidth = 80;
connect(model, SIGNAL(rowsInserted(const QModelIndex &, int, int)), this, SLOT(rowsInserted(const QModelIndex &, int, int)));
for(int i = 0; i < model->rowCount(); i++) {
ChatLine *line = new ChatLine(model->index(i, 0));
_lines.append(line);
addItem(line);
}
+ emit heightChanged(height());
}
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
+ int h = 0;
+ int y = 0;
+ if(_width && start > 0) y = _lines.value(start - 1)->y() + _lines.value(start - 1)->height();
+ for(int i = start; i <= end; i++) {
+ ChatLine *line = new ChatLine(model()->index(i, 0));
+ _lines.insert(i, line);
+ addItem(line);
+ if(_width > 0) {
+ line->setPos(0, y+h);
+ h += line->setColumnWidths(_timestampWidth, _senderWidth, _width - _timestampWidth - _senderWidth);
+ }
+ }
+ if(h > 0) {
+ _height += h;
+ for(int i = end+1; i < _lines.count(); i++) {
+ _lines.value(i)->moveBy(0, h);
+ }
+ emit heightChanged(height());
+ }
+}
+
void ChatScene::setWidth(int w) {
_width = w;
- int h = 0;
+ _height = 0;
foreach(ChatLine *line, _lines) {
- line->setPos(0, h);
- h += line->setColumnWidths(60, 80, w - 60 - 80);
+ line->setPos(0, _height);
+ _height += line->setColumnWidths(_timestampWidth, _senderWidth, w - _timestampWidth - _senderWidth);
}
- setSceneRect(QRectF(0, 0, w, h));
+ emit heightChanged(_height);
}
void ChatScene::mousePressEvent ( QGraphicsSceneMouseEvent * mouseEvent ) {