#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);
- //}
+ _fontMetrics = QtUi::style()->fontMetrics(data(ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second);
+ _layout = 0;
+ _lines = 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);
+int ChatItem::setWidth(int w) {
+ w -= 10;
+ if(w == _boundingRect.width()) return _boundingRect.height();
+ _boundingRect.setWidth(w);
+ int h = heightForWidth(w);
+ _boundingRect.setHeight(h);
+ if(haveLayout()) updateLayout();
+ return h;
}
-void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
- Q_UNUSED(option); Q_UNUSED(widget);
+int ChatItem::heightForWidth(int width) {
+ if(data(ChatLineModel::ColumnTypeRole).toUInt() != ChatLineModel::ContentsColumn)
+ return fontMetrics()->lineSpacing(); // only contents can be multi-line
- painter->drawRect(boundingRect());
- painter->drawText(boundingRect(), data(MessageModel::DisplayRole).toString());
+ _lines = 1;
+ QTextLine line;
+ WrapColumnFinder finder(this);
+ while(finder.nextWrapColumn(line) > 0) _lines++;
+ return _lines * fontMetrics()->lineSpacing();
+}
+
+ChatItem::WrapColumnFinder::WrapColumnFinder(ChatItem *_item) : item(_item) {
+ wrapList = item->data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
+ wordidx = 0;
+ layout = 0;
+ lastwrapcol = 0;
+ lastwrappos = 0;
+ w = 0;
}
+ChatItem::WrapColumnFinder::~WrapColumnFinder() {
+ delete layout;
+}
-/*
-void ChatItem::setWidth(int w) {
- _width = w;
- layout();
+int ChatItem::WrapColumnFinder::nextWrapColumn(QTextLine &line) {
+ while(wordidx < wrapList.count()) {
+ w += wrapList.at(wordidx).width;
+ if(w >= item->width()) {
+ if(lastwrapcol == wrapList.at(wordidx).start) {
+ // first word, and it doesn't fit
+ if(!line.isValid()) {
+ layout = item->createLayout();
+ layout->beginLayout();
+ line = layout->createLine();
+ line.setLineWidth(item->width());
+ layout->endLayout();
+ }
+ int idx = line.xToCursor((line.textStart() ? 0 : lastwrappos) + item->width());
+ qreal x = line.cursorToX(idx);
+ idx += line.textStart();
+ w = w - x - wrapList.at(wordidx).width;
+ if(line.textStart()) lastwrappos += x;
+ else lastwrappos = x;
+ lastwrapcol = idx;
+ return idx;
+ }
+ // not the first word, so just wrap before this
+ lastwrapcol = wrapList.at(wordidx).start;
+ lastwrappos = lastwrappos + w - wrapList.at(wordidx).width;
+ w = 0;
+ return lastwrapcol;
+ }
+ w += wrapList.at(wordidx).trailing;
+ wordidx++;
+ }
+ return -1;
}
-void ChatItem::setTextOption(const QTextOption &option) {
- _textOption = option;
- layout();
+QTextLayout *ChatItem::createLayout() {
+ QTextLayout *layout = new QTextLayout(data(MessageModel::DisplayRole).toString());
+
+ QTextOption option;
+ option.setWrapMode(QTextOption::WrapAnywhere);
+ layout->setTextOption(option);
+
+ QList<QTextLayout::FormatRange> formatRanges
+ = QtUi::style()->toTextLayoutList(data(MessageModel::FormatRole).value<UiStyle::FormatList>(), layout->text().length());
+ layout->setAdditionalFormats(formatRanges);
+ return layout;
}
-QTextOption ChatItem::textOption() const {
- return _textOption;
+void ChatItem::updateLayout() {
+ if(!haveLayout()) _layout = createLayout();
+
+ // Now layout
+ ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
+ if(!wrapList.count()) return; // empty chatitem
+ int wordidx = 0;
+ ChatLineModel::Word word = wrapList.at(0);
+
+ qreal h = 0;
+ WrapColumnFinder finder(this);
+ _layout->beginLayout();
+ forever {
+ QTextLine line = _layout->createLine();
+ if (!line.isValid())
+ break;
+
+ int col = finder.nextWrapColumn(line);
+ line.setNumColumns(col >= 0 ? col - line.textStart() : _layout->text().length());
+
+ h += fontMetrics()->leading();
+ 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);
- layout();
+//int ChatItem::findNextWrapColumn(
+
+void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
+ Q_UNUSED(option); Q_UNUSED(widget);
+ if(!haveLayout()) updateLayout();
+ _layout->draw(painter, QPointF(0,0), QVector<QTextLayout::FormatRange>(), boundingRect());
+ painter->drawRect(boundingRect());
+ int width = 0;
+ QVariantList wrapList = data(ChatLineModel::WrapListRole).toList();
+ for(int i = 2; i < wrapList.count(); i+=2) {
+ QRect r(wrapList[i-1].toUInt(), 0, wrapList[i+1].toUInt() - wrapList[i-1].toUInt(), fontMetrics()->lineSpacing());
+ painter->drawRect(r);
+ }
}
+
+/*
void ChatItem::layout() {
if(!_layout.additionalFormats().count()) return; // no text set
if(_width <= 0) return;
} else QGraphicsTextItem::mouseMoveEvent(event);
}
*/
-
-
-
projects / quassel.git / blobdiff