Chris@397: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@397: 
Chris@397: /*
Chris@397:     EasyMercurial
Chris@397: 
Chris@397:     Based on HgExplorer by Jari Korhonen
Chris@397:     Copyright (c) 2010 Jari Korhonen
Chris@644:     Copyright (c) 2013 Chris Cannam
Chris@644:     Copyright (c) 2013 Queen Mary, University of London
Chris@397:     
Chris@397:     This program is free software; you can redistribute it and/or
Chris@397:     modify it under the terms of the GNU General Public License as
Chris@397:     published by the Free Software Foundation; either version 2 of the
Chris@397:     License, or (at your option) any later version.  See the file
Chris@397:     COPYING included with this distribution for more information.
Chris@397: */
Chris@397: 
Chris@397: #include "changesetview.h"
Chris@397: #include "changesetscene.h"
Chris@397: #include "colourset.h"
Chris@397: #include "debug.h"
Chris@678: #include "common.h"
Chris@397: 
Chris@397: #include <QScrollBar>
Chris@397: 
Chris@397: ChangesetView::ChangesetView() :
Chris@397:     Panned()
Chris@397: {
Chris@397:     connect(horizontalScrollBar(), SIGNAL(valueChanged(int)),
Chris@397: 	    this, SLOT(horizontalScrollHappened()));
Chris@397: }
Chris@397: 
Chris@397: void
Chris@397: ChangesetView::horizontalScrollHappened()
Chris@397: {
Chris@397:     DEBUG << "ChangesetView::horizontalScrollHappened" << endl;
Chris@397:     invalidateScene(rect(), QGraphicsScene::BackgroundLayer);
Chris@397:     viewport()->update();
Chris@397: }
Chris@397: 
Chris@397: void
Chris@397: ChangesetView::drawBackground(QPainter *paint, const QRectF &rect)
Chris@397: {
Chris@397:     DEBUG << "ChangesetView::drawBackground" << endl;
Chris@397: 
Chris@397:     ChangesetScene *cs = qobject_cast<ChangesetScene *>(scene());
Chris@397: 
Chris@397:     if (!cs) {
Chris@397: 	QGraphicsView::drawBackground(paint, rect);
Chris@397: 	return;
Chris@397:     }
Chris@397: 
Chris@397:     DEBUG << "ChangesetView::drawBackground: have scene" << endl;
Chris@397: 
Chris@397:     ChangesetScene::DateRanges ranges = cs->getDateRanges();
Chris@397: 
Chris@397:     paint->setClipRect(rect);
Chris@397: 
Chris@397:     DEBUG << "clip rect is " << rect << endl;
Chris@397: 
Chris@397:     paint->save();
Chris@397:     QFont f(paint->font());
Chris@397:     f.setBold(true);
Chris@397:     paint->setFont(f);
Chris@397: 
Chris@397:     float x = mapToScene(0, 0).x();
Chris@397:     float w = mapToScene(width(), 0).x() - x;
Chris@397:     float px = mapToScene(5, 0).x();
Chris@397: 
Chris@397:     QBrush oddBrush(QColor::fromRgb(250, 250, 250));
Chris@397:     QBrush evenBrush(QColor::fromRgb(240, 240, 240));
Chris@397: 
Chris@397:     //!!! todo: select only the ranges actually within range!
Chris@397:     
Chris@397:     for (ChangesetScene::DateRanges::const_iterator i = ranges.begin();
Chris@397:          i != ranges.end(); ++i) {
Chris@397: 
Chris@397: 	ChangesetScene::DateRange range = i.value();
Chris@397: 
Chris@678:         int rowSpace = scalePixelSize(90);
Chris@678:         
Chris@678:         QRectF r = QRectF(x, range.minrow * rowSpace - scalePixelSize(25),
Chris@678: 			  w, range.nrows * rowSpace).normalized();
Chris@397: 
Chris@397: 	paint->fillRect(r, range.even ? evenBrush : oddBrush);
Chris@678:         paint->drawText(px, range.minrow * rowSpace - scalePixelSize(10), range.label);
Chris@397:     }
Chris@397: 
Chris@397:     paint->restore();
Chris@397: }
Chris@397: 
Chris@397: