annotate uncommitteditem.cpp @ 129:4986642800f0

* Initial work on showing uncommitted changes (as dashed box) in history graph

/* -*- 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 "uncommitteditem.h"
#include "colourset.h"
#include "debug.h"

#include <QPainter>
#include <QGraphicsScene>

UncommittedItem::UncommittedItem() :
    m_column(0), m_row(0), m_wide(false)
{
    m_font = QFont();
    m_font.setPixelSize(11);
    m_font.setBold(false);
    m_font.setItalic(false);
}

QRectF
UncommittedItem::boundingRect() const
{
    //!!! this stuff is gross, refactor with changesetitem
    int w = 100;
    if (m_wide) w = 180;
    return QRectF(-((w-50)/2 - 1), -30, w - 3, 79);
}

void
UncommittedItem::paint(QPainter *paint, const QStyleOptionGraphicsItem *option,
		       QWidget *w)
{
    paint->save();
    
    ColourSet *colourSet = ColourSet::instance();
    QColor branchColour = colourSet->getColourFor(m_branch);

    QFont f(m_font);

    QTransform t = paint->worldTransform();
    float scale = std::min(t.m11(), t.m22());
    if (scale > 1.0) {
	int ps = int((f.pixelSize() / scale) + 0.5);
	if (ps < 8) ps = 8;
	f.setPixelSize(ps);
    }

    if (scale < 0.1) {
	paint->setPen(QPen(branchColour, 0, Qt::DashLine));
    } else {
	paint->setPen(QPen(branchColour, 2, Qt::DashLine));
    }
	
    paint->setFont(f);
    QFontMetrics fm(f);
    int fh = fm.height();

    int width = 100;
    if (m_wide) width = 180;
    int x0 = -((width - 50) / 2 - 1);

    int height = 49;
    QRectF r(x0, 0, width - 3, height);
    paint->drawRect(r);

    QString label = tr("Uncommitted changes");
    paint->drawText(-(fm.width(label) - 50)/2, 25 - fm.height()/2 + fm.ascent(), label);

    paint->restore();
    return;
}