#include <QFontMetrics>
#include <QGraphicsSceneMouseEvent>
-#include <QTextCursor>
-#include <QTextDocument>
-
-#include <QtGui>
+#include <QPainter>
+#include <QTextLayout>
#include "chatitem.h"
+#include "chatlinemodel.h"
+#include "qtui.h"
ChatItem::ChatItem(const QPersistentModelIndex &index_, QGraphicsItem *parent) : QGraphicsItem(parent), _index(index_) {
- //if(_wrapMode == WordWrap) {
- // setFlags(QGraphicsItem::ItemClipsToShape, true);
- //}
+ QFontMetricsF *metrics = QtUi::style()->fontMetrics(data(ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second);
+ _lineHeight = metrics->lineSpacing();
+ _lineLeading = metrics->leading();
+ _layout = 0;
}
ChatItem::~ChatItem() {
QVariant ChatItem::data(int role) const {
if(!_index.isValid()) {
- qWarning() << "ChatItem::data(): Model index is invalid!";
+ qWarning() << "ChatItem::data(): Model index is invalid!" << _index;
return QVariant();
}
return _index.data(role);
}
-QRectF ChatItem::boundingRect() const {
- return QRectF(0, 0, 500,20);
-}
-
-void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
- Q_UNUSED(option); Q_UNUSED(widget);
-
- painter->drawRect(boundingRect());
- painter->drawText(boundingRect(), data(MessageModel::DisplayRole).toString());
-}
-
-
-/*
-void ChatItem::setWidth(int w) {
- _width = w;
- layout();
+int ChatItem::setWidth(int w) {
+ if(w == _boundingRect.width()) return _boundingRect.height();
+ int h = heightForWidth(w);
+ _boundingRect.setWidth(w);
+ _boundingRect.setHeight(h);
+ return h;
}
-void ChatItem::setTextOption(const QTextOption &option) {
- _textOption = option;
- layout();
+int ChatItem::heightForWidth(int width) {
+ if(data(ChatLineModel::ColumnTypeRole).toUInt() != ChatLineModel::ContentsColumn)
+ return _lineHeight; // only contents can be multi-line
+
+ QVariantList wrapList = data(ChatLineModel::WrapListRole).toList();
+ int lines = 1;
+ int offset = 0;
+ for(int i = 0; i < wrapList.count(); i+=2) {
+ if(wrapList.at(i+1).toUInt() - offset < width) continue;
+ lines++;
+ if(i > 0) {
+ if(offset < wrapList.at(i-1).toUInt()) offset = wrapList.at(i-1).toUInt();
+ else offset += width;
+ } else {
+ offset += width;
+ }
+ i-=2;
+ }
+ return lines * _lineHeight;
}
-QTextOption ChatItem::textOption() const {
- return _textOption;
+void ChatItem::layout() {
+ if(_layout) return;
+ _layout = new QTextLayout(data(MessageModel::DisplayRole).toString());
+
+ // Convert format information into a FormatRange
+ QList<QTextLayout::FormatRange> formatRanges;
+ UiStyle::FormatList formatList = data(MessageModel::FormatRole).value<UiStyle::FormatList>();
+ QTextLayout::FormatRange range;
+ int i = 0;
+ for(i = 0; i < formatList.count(); i++) {
+ range.format = QtUi::style()->mergedFormat(formatList.at(i).second);
+ range.start = formatList.at(i).first;
+ if(i > 0) formatRanges.last().length = range.start - formatRanges.last().start;
+ formatRanges.append(range);
+ }
+ if(i > 0) formatRanges.last().length = _layout->text().length() - formatRanges.last().start;
+ _layout->setAdditionalFormats(formatRanges);
+
+ // Now layout
+ qreal h = 0;
+ _layout->beginLayout();
+ forever {
+ QTextLine line = _layout->createLine();
+ if (!line.isValid())
+ break;
+
+ line.setLineWidth(width());
+ h += _lineLeading;
+ line.setPosition(QPointF(0, h));
+ h += line.height();
+ }
+ _layout->endLayout();
}
-QString ChatItem::text() const {
- return _layout.text();
+void ChatItem::clearLayout() {
+ delete _layout;
+ _layout = 0;
}
-void ChatItem::setText(const UiStyle::StyledText &text) {
- _layout.setText(text.text);
- _layout.setAdditionalFormats(text.formats);
+void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
+ Q_UNUSED(option); Q_UNUSED(widget);
layout();
+ _layout->draw(painter, QPointF(0,0), QVector<QTextLayout::FormatRange>(), boundingRect());
}
+/*
void ChatItem::layout() {
if(!_layout.additionalFormats().count()) return; // no text set
if(_width <= 0) return;
} else QGraphicsTextItem::mouseMoveEvent(event);
}
*/
-
-
-