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/***************************************************************************
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copyright : (C) 2005 by Radim Blazek
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***************************************************************************/
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/***************************************************************************
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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***************************************************************************/
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#include <QStringList>
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#include <QSvgRenderer>
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#include "qgsapplication.h"
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#include "qgsmarkercatalogue.h"
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QgsMarkerCatalogue *QgsMarkerCatalogue::mMarkerCatalogue = 0;
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QgsMarkerCatalogue::QgsMarkerCatalogue()
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mList.append ( "hard:circle" );
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mList.append ( "hard:rectangle" );
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mList.append ( "hard:diamond" );
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mList.append ( "hard:cross" );
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mList.append ( "hard:cross2" );
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mList.append ( "hard:triangle");
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mList.append ( "hard:star");
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QString svgPath = QgsApplication::svgPath();
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QStringList dl = dir.entryList(QDir::Dirs);
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for ( QStringList::iterator it = dl.begin(); it != dl.end(); ++it ) {
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if ( *it == "." || *it == ".." ) continue;
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QDir dir2 ( svgPath + *it );
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QStringList dl2 = dir2.entryList("*.svg",QDir::Files);
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for ( QStringList::iterator it2 = dl2.begin(); it2 != dl2.end(); ++it2 ) {
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// TODO test if it is correct SVG
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mList.append ( "svg:" + svgPath + *it + "/" + *it2 );
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QStringList QgsMarkerCatalogue::list()
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QgsMarkerCatalogue::~QgsMarkerCatalogue()
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QgsMarkerCatalogue *QgsMarkerCatalogue::instance()
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if ( !QgsMarkerCatalogue::mMarkerCatalogue ) {
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QgsMarkerCatalogue::mMarkerCatalogue = new QgsMarkerCatalogue();
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return QgsMarkerCatalogue::mMarkerCatalogue;
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QPixmap QgsMarkerCatalogue::pixmapMarker ( QString fullName, int size, QPen pen, QBrush brush, bool qtBug )
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//std::cerr << "QgsMarkerCatalogue::marker " << fullName.toLocal8Bit().data() << " sice:" << size << std::endl;
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// First prepare the paintdevice that the marker will be drawn onto
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if ( fullName.left(5) == "hard:" )
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//Note teh +1 offset below is required because the
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//otherwise the icons are getting clipped
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myPixmap = QPixmap (size+1,size+1);
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// TODO Change this logic so width is size and height is same
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// proportion of scale factor as in oritignal SVG TS XXX
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if (size < 1) size=1;
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//QPixmap myPixmap = QPixmap(width,height);
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myPixmap = QPixmap(size,size);
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// The following is window-system-conditional since (at least)
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// the combination of Qt 4.1.0 and RealVNC's Xvnc 4.1
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// will result in the pixmap becoming invisible if it is filled
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// with a non-opaque colour.
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// This is probably because Xvnc 4.1 doesn't have the RENDER
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// extension compiled into it.
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#if defined(Q_WS_X11)
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// Do a runtime test to see if the X RENDER extension is available
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if ( myPixmap.x11PictureHandle() )
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myPixmap.fill(QColor(255,255,255,0)); // transparent
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#if defined(Q_WS_X11)
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myPixmap.fill(QColor(255,255,255)); // opaque
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QPainter myPainter(&myPixmap);
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myPainter.setRenderHint(QPainter::Antialiasing);
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// Now pass the paintdevice along to have the marker rndered on it
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if ( fullName.left(5) == "hard:" )
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hardMarker ( &myPainter, fullName.mid(5), size, pen, brush, qtBug );
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else if ( fullName.left(4) == "svg:" )
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svgMarker ( &myPainter, fullName.mid(4), size );
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return QPixmap(); // empty
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QPicture QgsMarkerCatalogue::pictureMarker ( QString fullName, int size, QPen pen, QBrush brush, bool qtBug )
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// First prepare the paintdevice that the marker will be drawn onto
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if ( fullName.left(5) == "hard:" )
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//Note teh +1 offset below is required because the
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//otherwise the icons are getting clipped
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myPicture = QPicture (size+1);
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// TODO Change this logic so width is size and height is same
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// proportion of scale factor as in oritignal SVG TS XXX
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if (size < 1) size=1;
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//QPicture myPicture = QPicture(width,height);
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myPicture = QPicture(size);
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QPainter myPainter(&myPicture);
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myPainter.setRenderHint(QPainter::Antialiasing);
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// Now pass the paintdevice along to have the marker rndered on it
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if ( fullName.left(5) == "hard:" )
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hardMarker ( &myPainter, fullName.mid(5), size, pen, brush, qtBug );
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else if ( fullName.left(4) == "svg:" )
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svgMarker ( &myPainter, fullName.mid(4), size );
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return QPicture(); // empty
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void QgsMarkerCatalogue::svgMarker ( QPainter * thepPainter, QString filename, int scaleFactor)
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mySVG.load(filename);
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mySVG.render(thepPainter);
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void QgsMarkerCatalogue::hardMarker (QPainter * thepPainter, QString name, int s, QPen pen, QBrush brush, bool qtBug )
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// Size of polygon symbols is calculated so that the area is equal to circle with
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// diameter mPointSize
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int half = (int)floor(s/2.0); // number of points from center
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int size = 2*half + 1; // must be odd
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double area = 3.14 * (size/2.) * (size/2.);
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thepPainter->begin(&picture);
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thepPainter->setRenderHint(QPainter::Antialiasing);
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// Also width must be odd otherwise there are discrepancies visible in canvas!
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int lw = (int)(2*floor((double)pen.width()/2)+1); // -> lw > 0
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thepPainter->setPen ( pen );
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thepPainter->setBrush( brush);
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if ( name == "circle" )
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thepPainter->drawEllipse(0, 0, size, size);
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else if ( name == "rectangle" )
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size = (int) (2*floor(sqrt(area)/2.) + 1);
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thepPainter->drawRect(0, 0, size, size);
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else if ( name == "diamond" )
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half = (int) ( sqrt(area/2.) );
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pa.setPoint ( 0, 0, half);
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pa.setPoint ( 1, half, 2*half);
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pa.setPoint ( 2, 2*half, half);
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pa.setPoint ( 3, half, 0);
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thepPainter->drawPolygon ( pa );
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// Warning! if pen width > 0 thepPainter->drawLine(x1,y1,x2,y2) will draw only (x1,y1,x2-1,y2-1) !
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// It is impossible to draw lines as rectangles because line width scaling would not work
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// (QPicture is scaled later in QgsVectorLayer)
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// -> reset boundingRect for cross, cross2
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else if ( name == "cross" )
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add = 1; // lw always > 0
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thepPainter->drawLine(0, half, size-1+add, half); // horizontal
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thepPainter->drawLine(half, 0, half, size-1+add); // vertical
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box.setRect ( 0, 0, size, size );
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else if ( name == "cross2" )
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half = (int) floor( s/2/sqrt(2.0));
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add = 1; // lw always > 0
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int addwidth = (int) ( 0.5 * lw ); // width correction, cca lw/2 * cos(45)
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thepPainter->drawLine( 0, 0, size-1+add, size-1+add);
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thepPainter->drawLine( 0, size-1, size-1+add, 0-add);
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box.setRect ( -addwidth, -addwidth, size + 2*addwidth, size + 2*addwidth );
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else if ( name == "triangle")
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pa.setPoint ( 0, 0, size);
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pa.setPoint ( 1, size, size);
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pa.setPoint ( 2, half, 0);
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thepPainter->drawPolygon ( pa );
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else if (name == "star")
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int oneThird = (int)(floor(size/3+0.5));
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int twoThird = (int)(floor(size/3*2+0.5));
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pa.setPoint(0, half, 0);
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pa.setPoint(1, oneThird, oneThird);
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pa.setPoint(2, 0, oneThird);
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pa.setPoint(3, oneThird, half);
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pa.setPoint(4, 0, size);
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pa.setPoint(5, half, twoThird);
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pa.setPoint(6, size, size);
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pa.setPoint(7, twoThird, half);
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pa.setPoint(8, size, oneThird);
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pa.setPoint(9, twoThird, oneThird);
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thepPainter->drawPolygon ( pa );
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if ( name == "cross" || name == "cross2" )
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picture.setBoundingRect ( box );
added
removed
src/core/qgsmarkercatalogue.cpp
