Mercurial > hg > easyhg
view connectionitem.cpp @ 57:f583e44d9d31
* Update copyrights; add debug header
author | Chris Cannam |
---|---|
date | Tue, 16 Nov 2010 13:57:30 +0000 |
parents | 0e5fba6750c2 |
children | 644bd31e8301 |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* EasyMercurial Based on HgExplorer by Jari Korhonen Copyright (c) 2010 Jari Korhonen Copyright (c) 2010 Chris Cannam Copyright (c) 2010 Queen Mary, University of London This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See the file COPYING included with this distribution for more information. */ #include "connectionitem.h" #include "changesetitem.h" #include "changeset.h" #include "colourset.h" #include <QPainter> QRectF ConnectionItem::boundingRect() const { if (!m_parent || !m_child) return QRectF(); float xscale = 100; float yscale = 90; float size = 50; return QRectF(xscale * m_child->column() + size/2 - 2, yscale * m_child->row() + size - 2, xscale * m_parent->column() - xscale * m_child->column() + 4, yscale * m_parent->row() - yscale * m_child->row() - size + 4) .normalized(); } void ConnectionItem::paint(QPainter *paint, const QStyleOptionGraphicsItem *, QWidget *) { QPainterPath p; paint->save(); ColourSet *colourSet = ColourSet::instance(); QColor branchColour = colourSet->getColourFor(m_child->getChangeset()->branch()); QTransform t = paint->worldTransform(); float scale = std::min(t.m11(), t.m22()); if (scale < 0.1) { paint->setPen(QPen(branchColour, 0)); } else { paint->setPen(QPen(branchColour, 2)); } float xscale = 100; float yscale = 90; float size = 50; float ygap = yscale - size; int c_col = m_child->column(), c_row = m_child->row(); int p_col = m_parent->column(), p_row = m_parent->row(); float c_x = xscale * c_col + size/2; float p_x = xscale * p_col + size/2; p.moveTo(c_x, yscale * c_row + size); if (p_col == c_col) { p.lineTo(p_x, yscale * p_row); } else if (m_type == Split || m_type == Normal) { // place the bulk of the line on the child (i.e. branch) row if (abs(p_row - c_row) > 1) { p.lineTo(c_x, yscale * p_row - ygap); } p.cubicTo(c_x, yscale * p_row, p_x, yscale * p_row - ygap, p_x, yscale * p_row); } else if (m_type == Merge) { // place bulk of the line on the parent row p.cubicTo(c_x, yscale * c_row + size + ygap, p_x, yscale * c_row + size, p_x, yscale * c_row + size + ygap); if (abs(p_row - c_row) > 1) { p.lineTo(p_x, yscale * p_row); } } paint->drawPath(p); paint->restore(); }