Chris@117: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@117: 
Chris@117: /*
Chris@117:     EasyMercurial
Chris@117: 
Chris@117:     Based on HgExplorer by Jari Korhonen
Chris@117:     Copyright (c) 2010 Jari Korhonen
Chris@644:     Copyright (c) 2013 Chris Cannam
Chris@644:     Copyright (c) 2013 Queen Mary, University of London
Chris@117:     
Chris@117:     This program is free software; you can redistribute it and/or
Chris@117:     modify it under the terms of the GNU General Public License as
Chris@117:     published by the Free Software Foundation; either version 2 of the
Chris@117:     License, or (at your option) any later version.  See the file
Chris@117:     COPYING included with this distribution for more information.
Chris@117: */
Chris@117: 
Chris@117: #include "changesetdetailitem.h"
Chris@117: #include "changeset.h"
Chris@117: #include "textabbrev.h"
Chris@117: #include "colourset.h"
Chris@117: #include "debug.h"
Chris@118: #include "common.h"
Chris@117: 
Chris@118: #include <QTextDocument>
Chris@117: #include <QPainter>
Chris@600: #include <QAbstractTextDocumentLayout>
Chris@117: 
Chris@117: ChangesetDetailItem::ChangesetDetailItem(Changeset *cs) :
Chris@118:     m_changeset(cs), m_doc(0)
Chris@117: {
Chris@117:     m_font = QFont();
Chris@117:     m_font.setPixelSize(11);
Chris@117:     m_font.setBold(false);
Chris@117:     m_font.setItalic(false);
Chris@118: 
Chris@118:     makeDocument();
Chris@118: }
Chris@118: 
Chris@118: ChangesetDetailItem::~ChangesetDetailItem()
Chris@118: {
Chris@118:     delete m_doc;
Chris@117: }
Chris@117: 
Chris@117: QRectF
Chris@117: ChangesetDetailItem::boundingRect() const
Chris@117: {
Chris@118:     int w = 350;
Chris@118:     m_doc->setTextWidth(w);
Chris@124:     return QRectF(-10, -10, w + 10, m_doc->size().height() + 10);
Chris@117: }
Chris@117: 
Chris@402: QVariant
Chris@402: ChangesetDetailItem::itemChange(GraphicsItemChange c, const QVariant &v)
Chris@402: {
Chris@402:     if (c == ItemVisibleHasChanged) {
Chris@402:         bool visible = v.toBool();
Chris@402:         DEBUG << "ChangesetDetailItem::itemChange: visible = " << visible << endl;
Chris@402:         if (visible && scene()) {
Chris@402:             ensureVisible();
Chris@402:         }
Chris@402:     }
Chris@402:     return v;
Chris@402: }
Chris@402: 
Chris@117: void
Chris@117: ChangesetDetailItem::paint(QPainter *paint,
Chris@671: 			   const QStyleOptionGraphicsItem *,
Chris@671: 			   QWidget *)
Chris@117: {
Chris@117:     paint->save();
Chris@682: 
Chris@682: #ifdef Q_OS_WIN32
Chris@682: #endif
Chris@117:     
Chris@117:     ColourSet *colourSet = ColourSet::instance();
Chris@117:     QColor branchColour = colourSet->getColourFor(m_changeset->branch());
Chris@117: 
Chris@117:     QTransform t = paint->worldTransform();
Chris@117:     float scale = std::min(t.m11(), t.m22());
Chris@117: 
Chris@682: #ifdef Q_OS_WIN32
Chris@682:     QFont f(m_doc->defaultFont());
Chris@682:     f.setHintingPreference(scale != 1.0 ?
Chris@682:                            QFont::PreferVerticalHinting :
Chris@682:                            QFont::PreferDefaultHinting);
Chris@682:     m_doc->setDefaultFont(f);
Chris@682: #endif
Chris@682:     
Chris@117:     if (scale < 0.1) {
Chris@117: 	paint->setPen(QPen(branchColour, 0));
Chris@117:     } else {
Chris@117: 	paint->setPen(QPen(branchColour, 2));
Chris@117:     }
Chris@600:     
Chris@117:     int width = 350;
Chris@118:     m_doc->setTextWidth(width);
Chris@118:     int height = m_doc->size().height();
Chris@117: 
Chris@117:     QRectF r(0.5, 0.5, width - 1, height - 1);
Chris@117:     paint->setBrush(Qt::white);
Chris@386:     paint->drawRoundedRect(r, 10, 10);
Chris@117: 
Chris@117:     if (scale < 0.1) {
Chris@117: 	paint->restore();
Chris@117: 	return;
Chris@117:     }
Chris@118: 
Chris@124:     // little triangle connecting to its "owning" changeset item
Chris@124:     paint->setBrush(branchColour);
Chris@124:     QVector<QPointF> pts;
Chris@124:     pts.push_back(QPointF(0, height/3 - 5));
Chris@124:     pts.push_back(QPointF(0, height/3 + 5));
Chris@124:     pts.push_back(QPointF(-10, height/3));
Chris@124:     pts.push_back(QPointF(0, height/3 - 5));
Chris@124:     paint->drawPolygon(QPolygonF(pts));
Chris@124: 
Chris@118:     m_doc->drawContents(paint, r);
Chris@118: 
Chris@117:     paint->restore();
Chris@117: }
Chris@118: 
Chris@118: void
Chris@118: ChangesetDetailItem::makeDocument()
Chris@118: {
Chris@118:     delete m_doc;
Chris@118:     m_doc = new QTextDocument;
Chris@125:     m_doc->setHtml(m_changeset->formatHtml());
Chris@600:     m_doc->setDefaultFont(m_font);
Chris@118: }
Chris@118: