Incorporated glbarcode library into source tree.

2017-04-09 19:14:13 -04:00
parent 76bd5a0c6b
commit b17cea7ace
47 changed files with 6290 additions and 0 deletions
@@ -0,0 +1,187 @@
+/*  QtRenderer.cpp
+ *
+ *  Copyright (C) 2017  Jim Evins <evins@snaught.com>
+ *
+ *  This file is part of glbarcode++.
+ *
+ *  glbarcode++ is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  glbarcode++ is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with glbarcode++.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "QtRenderer.h"
+
+#include <QFont>
+#include <QFontMetrics>
+#include <QString>
+
+
+namespace glbarcode
+{
+
+	struct QtRenderer::PrivateData
+	{
+		QPainter* painter;
+		QColor    color;
+	};
+
+
+	QtRenderer::QtRenderer()
+	{
+		d = new QtRenderer::PrivateData;
+
+		d->painter = nullptr;
+	}
+
+
+	QtRenderer::QtRenderer( QPainter* painter )
+	{
+		d = new QtRenderer::PrivateData;
+
+		setPainter( painter );
+	}
+
+
+	QtRenderer::QtRenderer( const QtRenderer& from )
+	{
+		d = new QtRenderer::PrivateData;
+
+		*d = *from.d;
+	}
+
+
+	QtRenderer::~QtRenderer()
+	{
+		delete d;
+	}
+
+
+	QtRenderer& QtRenderer::operator=( const QtRenderer& from )
+	{
+		*d = *from.d;
+
+		return *this;
+	}
+
+
+	QPainter* QtRenderer::painter( void ) const
+	{
+		return d->painter;
+	}
+
+
+	QtRenderer& QtRenderer::setPainter( QPainter* painter )
+	{
+		d->painter = painter;
+
+		return *this;
+	}
+
+
+	void QtRenderer::drawBegin( double w, double h )
+	{
+		if ( d->painter )
+		{
+			d->painter->save();
+			d->color = d->painter->pen().color(); // Get current pen color
+		}
+	}
+
+
+	void QtRenderer::drawEnd( void )
+	{
+		if ( d->painter )
+		{
+			d->painter->restore();
+		}
+	}
+
+
+	void QtRenderer::drawLine( double x, double y, double w, double h )
+	{
+		if ( d->painter )
+		{
+			double x = x + w/2; // Offset line origin by 1/2 line width.
+
+			d->painter->setPen( QPen( d->color, w ) );
+			d->painter->drawLine( QPointF(x, y), QPointF(x, y+h) );
+		}
+	}
+
+
+	void QtRenderer::drawBox( double x, double y, double w, double h )
+	{
+		if ( d->painter )
+		{
+			d->painter->setPen( QPen( Qt::NoPen ) );
+			d->painter->setBrush( QBrush( d->color ) );
+		
+			d->painter->drawRect( QRectF(x, y, w, h) );
+		}
+	}
+
+
+	void QtRenderer::drawText( double x, double y, double size, const std::string& text )
+	{
+		if ( d->painter )
+		{
+			d->painter->setPen( QPen( d->color ) );
+
+			QFont font = d->painter->font();
+			font.setStyleHint( QFont::Monospace );
+			font.setPointSizeF( size );
+			d->painter->setFont( font );
+
+			QFontMetrics fm( font );
+			QRect rect = fm.boundingRect( QString::fromStdString(text) );
+
+			double xCorner = x - rect.width()/2.0;
+			double yCorner = y - rect.height() + fm.descent();
+		
+			d->painter->drawText( QPointF(xCorner, yCorner), QString::fromStdString(text) );
+		}
+	}
+
+
+	void QtRenderer::drawRing( double x, double y, double r, double w )
+	{
+		if ( d->painter )
+		{
+			d->painter->setPen( QPen( d->color, w ) );
+			d->painter->setBrush( Qt::NoBrush );
+		
+			d->painter->drawEllipse( QPointF(x, y), r, r );
+		}
+	}
+
+
+	void QtRenderer::drawHexagon( double x, double y, double h )
+	{
+		if ( d->painter )
+		{
+			d->painter->setPen( QPen( Qt::NoPen ) );
+			d->painter->setBrush( QBrush( d->color ) );
+		
+			QPolygonF hexagon;
+			hexagon << QPointF( x,           y          )
+			        << QPointF( x + 0.433*h, y + 0.25*h )
+			        << QPointF( x + 0.433*h, y + 0.75*h )
+			        << QPointF( x,           y +      h )
+			        << QPointF( x - 0.433*h, y + 0.75*h )
+			        << QPointF( x - 0.433*h, y + 0.25*h );
+
+			d->painter->drawPolygon( hexagon );
+		}
+	}
+
+
+}