qtreerevball.cpp #2

// Implementation of QTreeRevBall. 

#include <clientapi.h>
#include <qcanvas.h>
#include <qdialog.h>
#include <qlabel.h>
#include <qlayout.h>
#include <qmessagebox.h>
#include <qpainter.h>
#include <qpushbutton.h>

#include "changesorter.h"
#include "filehead.h"
#include "filelogcache.h"

#include "qtreeitem.h"

#define QTREEREVDIALOG_H
#include "qtreerevdialog.h"

#include "qtreerevtext.h"
#include "qtreerevball.h"


QTreeRevBall::QTreeRevBall
( QCanvas* canv, FileRev* frev, int y, int vspace, bool trunc )
: QCanvasPolygonalItem( canv ), rev( frev )
{
	// The FileRev needs to know what RevBall represents it. 
	rev->revball = this;

	setPen( QPen( black, 2 ) );

	// Set position.

	setZ( TREE_ZBALL ); 
	// If this is a truncated view, align the revballs relative to
	// the set of changelists that will be displayed. 
	if ( trunc )
		move( ( rev->fh->flc->changes->GetArrPos( rev->change ) - 1 )
			* TREE_BALLSPACE + TREE_BALLSPACE/2, y + TREE_BALLRAD + 4 );
	else
		move( ( rev->fh->flc->changes->GetPos( rev->change ) - 1 )
			* TREE_BALLSPACE + TREE_BALLSPACE/2, y + TREE_BALLRAD + 4 );

	// Revision text goes in the middle of the ball. 
	revtext = new QTreeRevText( canv, rev->rev.Text() );
	revtext->move( this->x()-revtext->boundingRect().width()/2, 
		this->y()-revtext->boundingRect().height()/2 );
	if ( rev->type == DEL ) revtext->setColor( QColor( "whitesmoke" ) );
}

QTreeRevBall::~QTreeRevBall()
{

}

// Set color based on defs in qtreeitem.h.
void QTreeRevBall::UpdateBrush()
{
	QColor color;
	switch( rev->type )
	{
	case( ADD ):
	case( BRANCH ):
		color = QColor( TREE_COLBALLA );
		break;
	case( DEL ):
		color = QColor( TREE_COLBALLD );
		break;
	case( EDIT ):
		color = QColor( TREE_COLBALLE );
		break;
	case( INTEG ):
		color = QColor( TREE_COLBALLI );
		break;
	}
	setBrush( QBrush( color ) );
}

StrBuf QTreeRevBall::Name()
{
	StrBuf filerev;
	filerev.Set( rev->fh->name );
	filerev.Append( "#" );
	filerev.Append( rev->rev.Text() );
	return filerev;
}

bool QTreeRevBall::IsBinary()
{
	QString ftype = rev->ftype.Text();
	return ftype.contains( "binary" );
}

// The areaPoints() and drawShape() methods are for the most part
// cribbed from qcanvas.cpp.  The main difference is that the
// areaPoints() method takes the outline into account, thus fixing
// QCanvasEllipse's inability to support an outline.  Drawing the
// revtext directly in drawShape() is just performance gravy. 

QPointArray QTreeRevBall::areaPoints() const
{
	QPointArray r;
	// makeArc at 0,0, then translate to avoid math overflow 
	// This is a workaround for a Qt bug. 
	r.makeArc( int( -TREE_BALLRAD - 1 - pen().width() ),
		int( -TREE_BALLRAD-1-pen().width() ),
		( TREE_BALLRAD + pen().width() + 1 )*2,
		( TREE_BALLRAD + pen().width() + 1 )*2,
		0 ,360*16 );
	r.translate( x(), y() );
	r.resize( r.size() + 1 );
	r.setPoint( r.size()-1, int( x() ), int( y() ) );
	return r;
}

void QTreeRevBall::drawShape( QPainter& p )
{
	p.drawEllipse( int( x() - TREE_BALLRAD + 0.5 ),
		int( y() - TREE_BALLRAD + 0.5 ),
		TREE_BALLRAD*2, TREE_BALLRAD*2 );
	revtext->draw( p );
}

void QTreeRevBall::InfoDialog( QWidget* parent )
{
	QDialog* dia = new QTreeRevDialog( parent, rev );
	dia->exec();
	delete dia;
}