* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+#include <QApplication>
+#include <QClipboard>
+#include <QDesktopServices>
#include <QFontMetrics>
#include <QGraphicsSceneMouseEvent>
-#include <QTextCursor>
-#include <QTextDocument>
-
-#include <QtGui>
+#include <QPainter>
+#include <QPalette>
+#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);
- //}
-
+ChatItem::ChatItem(ChatLineModel::ColumnType col, QAbstractItemModel *model, QGraphicsItem *parent)
+ : QGraphicsItem(parent),
+ _fontMetrics(0),
+ _selectionMode(NoSelection),
+ _selectionStart(-1),
+ _layout(0)
+{
+ Q_ASSERT(model);
+ QModelIndex index = model->index(row(), col);
+ _fontMetrics = QtUi::style()->fontMetrics(model->data(index, ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second);
+ setAcceptHoverEvents(true);
+ setZValue(20);
}
ChatItem::~ChatItem() {
-
+ delete _layout;
}
QVariant ChatItem::data(int role) const {
- if(!_index.isValid()) {
- qWarning() << "ChatItem::data(): Model index is invalid!";
+ QModelIndex index = model()->index(row(), column());
+ if(!index.isValid()) {
+ qWarning() << "ChatItem::data(): model index is invalid!" << index;
return QVariant();
}
- return _index.data(role);
+ return model()->data(index, role);
+}
+
+qreal ChatItem::setGeometry(qreal w, qreal h) {
+ if(w == _boundingRect.width()) return _boundingRect.height();
+ prepareGeometryChange();
+ _boundingRect.setWidth(w);
+ if(h < 0) h = computeHeight();
+ //if(h < 0) h = fontMetrics()->lineSpacing(); // only contents can be multi-line
+ _boundingRect.setHeight(h);
+ if(haveLayout()) updateLayout();
+ return h;
+}
+
+qreal ChatItem::computeHeight() {
+ return fontMetrics()->lineSpacing(); // only contents can be multi-line
}
-QRectF ChatItem::boundingRect() const {
- return QRectF(0, 0, 500,20);
+QTextLayout *ChatItem::createLayout(QTextOption::WrapMode wrapMode, Qt::Alignment alignment) {
+ QTextLayout *layout = new QTextLayout(data(MessageModel::DisplayRole).toString());
+
+ QTextOption option;
+ option.setWrapMode(wrapMode);
+ option.setAlignment(alignment);
+ layout->setTextOption(option);
+
+ QList<QTextLayout::FormatRange> formatRanges
+ = QtUi::style()->toTextLayoutList(data(MessageModel::FormatRole).value<UiStyle::FormatList>(), layout->text().length());
+ layout->setAdditionalFormats(formatRanges);
+ return layout;
}
+void ChatItem::updateLayout() {
+ if(!haveLayout())
+ setLayout(createLayout(QTextOption::WrapAnywhere, Qt::AlignLeft));
+
+ layout()->beginLayout();
+ QTextLine line = layout()->createLine();
+ if(line.isValid()) {
+ line.setLineWidth(width());
+ line.setPosition(QPointF(0,0));
+ }
+ layout()->endLayout();
+}
+
+void ChatItem::clearLayout() {
+ delete _layout;
+ _layout = 0;
+}
+
+// NOTE: This is not the most time-efficient implementation, but it saves space by not caching unnecessary data
+// This is a deliberate trade-off. (-> selectFmt creation, data() call)
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());
+ if(!haveLayout()) updateLayout();
+ painter->setClipRect(boundingRect()); // no idea why QGraphicsItem clipping won't work
+ //if(_selectionMode == FullSelection) {
+ //painter->save();
+ //painter->fillRect(boundingRect(), QApplication::palette().brush(QPalette::Highlight));
+ //painter->restore();
+ //}
+ QVector<QTextLayout::FormatRange> formats;
+ if(_selectionMode != NoSelection) {
+ QTextLayout::FormatRange selectFmt;
+ selectFmt.format.setForeground(QApplication::palette().brush(QPalette::HighlightedText));
+ selectFmt.format.setBackground(QApplication::palette().brush(QPalette::Highlight));
+ if(_selectionMode == PartialSelection) {
+ selectFmt.start = qMin(_selectionStart, _selectionEnd);
+ selectFmt.length = qAbs(_selectionStart - _selectionEnd);
+ } else { // FullSelection
+ selectFmt.start = 0;
+ selectFmt.length = data(MessageModel::DisplayRole).toString().length();
+ }
+ formats.append(selectFmt);
+ }
+ layout()->draw(painter, QPointF(0,0), formats, boundingRect());
}
+qint16 ChatItem::posToCursor(const QPointF &pos) {
+ if(pos.y() > height()) return data(MessageModel::DisplayRole).toString().length();
+ if(pos.y() < 0) return 0;
+ if(!haveLayout()) updateLayout();
+ for(int l = layout()->lineCount() - 1; l >= 0; l--) {
+ QTextLine line = layout()->lineAt(l);
+ if(pos.y() >= line.y()) {
+ return line.xToCursor(pos.x(), QTextLine::CursorOnCharacter);
+ }
+ }
+ return 0;
+}
-/*
-void ChatItem::setWidth(int w) {
- _width = w;
- layout();
+void ChatItem::setFullSelection() {
+ if(_selectionMode != FullSelection) {
+ _selectionMode = FullSelection;
+ update();
+ }
}
-void ChatItem::setTextOption(const QTextOption &option) {
- _textOption = option;
- layout();
+void ChatItem::clearSelection() {
+ _selectionMode = NoSelection;
+ update();
}
-QTextOption ChatItem::textOption() const {
- return _textOption;
+void ChatItem::continueSelecting(const QPointF &pos) {
+ _selectionMode = PartialSelection;
+ _selectionEnd = posToCursor(pos);
+ update();
}
-QString ChatItem::text() const {
- return _layout.text();
+QList<QRectF> ChatItem::findWords(const QString &searchWord, Qt::CaseSensitivity caseSensitive) {
+ QList<QRectF> resultList;
+ const QAbstractItemModel *model_ = model();
+ if(!model_)
+ return resultList;
+
+ QString plainText = model_->data(model_->index(row(), column()), MessageModel::DisplayRole).toString();
+ QList<int> indexList;
+ int searchIdx = plainText.indexOf(searchWord, 0, caseSensitive);
+ while(searchIdx != -1) {
+ indexList << searchIdx;
+ searchIdx = plainText.indexOf(searchWord, searchIdx + 1, caseSensitive);
+ }
+
+ if(!haveLayout())
+ updateLayout();
+
+ foreach(int idx, indexList) {
+ QTextLine line = layout()->lineForTextPosition(idx);
+ qreal x = line.cursorToX(idx);
+ qreal width = line.cursorToX(idx + searchWord.count()) - x;
+ qreal height = fontMetrics()->lineSpacing();
+ qreal y = height * line.lineNumber();
+ resultList << QRectF(x, y, width, height);
+ }
+ return resultList;
}
-void ChatItem::setText(const UiStyle::StyledText &text) {
- _layout.setText(text.text);
- _layout.setAdditionalFormats(text.formatList);
- layout();
+void ChatItem::mousePressEvent(QGraphicsSceneMouseEvent *event) {
+ if(event->buttons() == Qt::LeftButton) {
+ chatScene()->setSelectingItem(this);
+ _selectionStart = _selectionEnd = posToCursor(event->pos());
+ _selectionMode = NoSelection; // will be set to PartialSelection by mouseMoveEvent
+ update();
+ event->accept();
+ } else {
+ event->ignore();
+ }
}
-void ChatItem::layout() {
- if(!_layout.additionalFormats().count()) return; // no text set
- if(_width <= 0) return;
- prepareGeometryChange();
- QFontMetrics metrics(_layout.additionalFormats()[0].format.font());
- int leading = metrics.leading();
- int height = 0;
- _layout.setTextOption(textOption());
- _layout.beginLayout();
- while(1) {
- QTextLine line = _layout.createLine();
- if(!line.isValid()) break;
- line.setLineWidth(_width);
- if(textOption().wrapMode() != QTextOption::NoWrap && line.naturalTextWidth() > _width) {
- // word did not fit, we need to wrap it in the middle
- // this is a workaround for Qt failing to handle WrapAtWordBoundaryOrAnywhere correctly
- QTextOption::WrapMode mode = textOption().wrapMode();
- textOption().setWrapMode(QTextOption::WrapAnywhere);
- _layout.setTextOption(textOption());
- line.setLineWidth(_width);
- textOption().setWrapMode(mode);
- _layout.setTextOption(textOption());
+void ChatItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
+ if(event->buttons() == Qt::LeftButton) {
+ if(contains(event->pos())) {
+ qint16 end = posToCursor(event->pos());
+ if(end != _selectionEnd) {
+ _selectionEnd = end;
+ _selectionMode = (_selectionStart != _selectionEnd ? PartialSelection : NoSelection);
+ update();
+ }
+ } else {
+ setFullSelection();
+ chatScene()->startGlobalSelection(this, event->pos());
}
- height += leading;
- line.setPosition(QPoint(0, height));
- height += line.height();
+ event->accept();
+ } else {
+ event->ignore();
}
- _layout.endLayout();
- update();
-} QDateTime _timestamp;
- MsgId _msgId;
+}
+void ChatItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
+ if(_selectionMode != NoSelection && !event->buttons() & Qt::LeftButton) {
+ _selectionEnd = posToCursor(event->pos());
+ QString selection
+ = data(MessageModel::DisplayRole).toString().mid(qMin(_selectionStart, _selectionEnd), qAbs(_selectionStart - _selectionEnd));
+ chatScene()->putToClipboard(selection);
+ event->accept();
+ } else {
+ event->ignore();
+ }
+}
+
+/*************************************************************************************************/
+
+/*************************************************************************************************/
-QRectF ChatItem::boundingRect() const {
- return _layout.boundingRect();
+void SenderChatItem::updateLayout() {
+ if(!haveLayout()) setLayout(createLayout(QTextOption::WrapAnywhere, Qt::AlignRight));
+ ChatItem::updateLayout();
}
-void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
- Q_UNUSED(option); Q_UNUSED(widget);
- _layout.draw(painter, QPointF(0, 0));
+/*************************************************************************************************/
+
+ContentsChatItem::ContentsChatItem(QAbstractItemModel *model, QGraphicsItem *parent) : ChatItem(column(), model, parent),
+ _layoutData(0)
+{
}
-*/
-/*
-void ChatItem::mouseMoveEvent ( QGraphicsSceneMouseEvent * event ) {
- qDebug() << (void*)this << "moving" << event->pos();
- if(event->pos().y() < 0) {
- QTextCursor cursor(document());
- //cursor.insertText("foo");
- //cursor.select(QTextCursor::Document);
- event->ignore();
- } else QGraphicsTextItem::mouseMoveEvent(event);
+ContentsChatItem::~ContentsChatItem() {
+ delete _layoutData;
}
-*/
+qreal ContentsChatItem::computeHeight() {
+ int lines = 1;
+ WrapColumnFinder finder(this);
+ while(finder.nextWrapColumn() > 0) lines++;
+ return lines * fontMetrics()->lineSpacing();
+}
+void ContentsChatItem::setLayout(QTextLayout *layout) {
+ if(!_layoutData)
+ _layoutData = new LayoutData;
+ _layoutData->layout = layout;
+}
+
+void ContentsChatItem::clearLayout() {
+ delete _layoutData;
+ _layoutData = 0;
+}
+
+void ContentsChatItem::updateLayout() {
+ if(!haveLayout()) setLayout(createLayout(QTextOption::WrapAnywhere));
+
+ // Now layout
+ ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
+ if(!wrapList.count()) return; // empty chatitem
+
+ qreal h = 0;
+ WrapColumnFinder finder(this);
+ layout()->beginLayout();
+ forever {
+ QTextLine line = layout()->createLine();
+ if(!line.isValid())
+ break;
+
+ int col = finder.nextWrapColumn();
+ line.setNumColumns(col >= 0 ? col - line.textStart() : layout()->text().length());
+ line.setPosition(QPointF(0, h));
+ h += line.height() + fontMetrics()->leading();
+ }
+ layout()->endLayout();
+}
+void ContentsChatItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) {
+ // FIXME dirty and fast hack to make http:// urls klickable
+
+ QRegExp regex("\\b([hf]t{1,2}ps?://[^\\s]+)\\b");
+ QString str = data(ChatLineModel::DisplayRole).toString();
+ int idx = posToCursor(event->pos());
+ int mi = 0;
+ do {
+ mi = regex.indexIn(str, mi);
+ if(mi < 0) break;
+ if(idx >= mi && idx < mi + regex.matchedLength()) {
+ QDesktopServices::openUrl(QUrl(regex.capturedTexts()[1]));
+ break;
+ }
+ mi += regex.matchedLength();
+ } while(mi >= 0);
+ event->accept();
+}
+
+void ContentsChatItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event) {
+ //qDebug() << (void*)this << "entering";
+ event->ignore();
+}
+
+void ContentsChatItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event) {
+ //qDebug() << (void*)this << "leaving";
+ event->ignore();
+}
+
+void ContentsChatItem::hoverMoveEvent(QGraphicsSceneHoverEvent *event) {
+ //qDebug() << (void*)this << event->pos();
+ event->ignore();
+}
+
+/*************************************************************************************************/
+
+ContentsChatItem::WrapColumnFinder::WrapColumnFinder(ChatItem *_item)
+ : item(_item),
+ layout(0),
+ wrapList(item->data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>()),
+ wordidx(0),
+ lastwrapcol(0),
+ lastwrappos(0),
+ w(0)
+{
+}
+
+ContentsChatItem::WrapColumnFinder::~WrapColumnFinder() {
+ delete layout;
+}
+
+qint16 ContentsChatItem::WrapColumnFinder::nextWrapColumn() {
+ 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(QTextOption::NoWrap);
+ layout->beginLayout();
+ line = layout->createLine();
+ line.setLineWidth(item->width());
+ layout->endLayout();
+ }
+ int idx = line.xToCursor(lastwrappos + item->width(), QTextLine::CursorOnCharacter);
+ qreal x = line.cursorToX(idx, QTextLine::Trailing);
+ w = w - wrapList.at(wordidx).width - (x - lastwrappos);
+ 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;
+}
projects / quassel.git / blobdiff