// QtPluginIconPalletTool Interface
void
dmz::QtPluginIconPalletTool::_add_type (const ObjectType &Type) {
const String IconResource = config_to_string (
get_plugin_name () + ".resource",
Type.get_config());
const String IconName = _rc.find_file (IconResource);
if (IconName) {
const String Name = Type.get_name ();
if (Name) {
QImage back (
(int)_iconExtent,
(int)_iconExtent,
QImage::Format_ARGB32_Premultiplied);
QPainter painter (&back);
painter.setCompositionMode (QPainter::CompositionMode_Source);
painter.fillRect (back.rect (), Qt::transparent);
painter.setCompositionMode (QPainter::CompositionMode_SourceOver);
QSvgRenderer qsr (QString (IconName.get_buffer ()));
QRectF size = qsr.viewBoxF ();
qreal width = size.width ();
qreal height = size.height ();
qreal scale = (width > height) ? width : height;
if (scale <= 0.0f) { scale = 1.0f; }
scale = _iconExtent / scale;
width *= scale;
height *= scale;
size.setWidth (width);
size.setHeight (height);
if (height < _iconExtent) { size.moveTop ((_iconExtent - height) * 0.5f); }
if (width < _iconExtent) { size.moveLeft ((_iconExtent - width) * 0.5f); }
qsr.render (&painter, size);
painter.end ();
QIcon icon;
icon.addPixmap (QPixmap::fromImage (back));
QStandardItem *item = new QStandardItem (icon, Name.get_buffer ());
item->setEditable (false);
_model.appendRow (item);
}
}
else if (IconResource) {
_log.error << "Unable to find icon resource: " << IconResource
<< " for object type: " << Type.get_name () << endl;
}
RuntimeIterator it;
ObjectType next;
while (Type.get_next_child (it, next)) { _add_type (next); }
}
void QgsDecorationNorthArrow::render( const QgsMapSettings &mapSettings, QgsRenderContext &context )
{
if ( !enabled() )
return;
double maxLength = mSize * mapSettings.outputDpi() / 25.4;
QSvgRenderer svg;
const QByteArray &svgContent = QgsApplication::svgCache()->svgContent( svgPath(), maxLength, mColor, mOutlineColor, 1.0, 1.0 );
svg.load( svgContent );
if ( svg.isValid() )
{
QSize size( maxLength, maxLength );
QRectF viewBox = svg.viewBoxF();
if ( viewBox.height() > viewBox.width() )
{
size.setWidth( maxLength * viewBox.width() / viewBox.height() );
}
else
{
size.setHeight( maxLength * viewBox.height() / viewBox.width() );
}
double centerXDouble = size.width() / 2.0;
double centerYDouble = size.height() / 2.0;
//save the current canvas rotation
context.painter()->save();
//
//work out how to shift the image so that it rotates
// properly about its center
//(x cos a + y sin a - x, -x sin a + y cos a - y)
//
// could move this call to somewhere else so that it is only
// called when the projection or map extent changes
if ( mAutomatic )
{
try
{
mRotationInt = QgsBearingUtils:: bearingTrueNorth( mapSettings.destinationCrs(), mapSettings.transformContext(), context.extent().center() );
}
catch ( QgsException & )
{
mRotationInt = 0.0;
}
mRotationInt += mapSettings.rotation();
}
double radiansDouble = mRotationInt * M_PI / 180.0;
int xShift = static_cast<int>( (
( centerXDouble * std::cos( radiansDouble ) ) +
( centerYDouble * std::sin( radiansDouble ) )
) - centerXDouble );
int yShift = static_cast<int>( (
( -centerXDouble * std::sin( radiansDouble ) ) +
( centerYDouble * std::cos( radiansDouble ) )
) - centerYDouble );
// need width/height of paint device
int deviceHeight = context.painter()->device()->height();
int deviceWidth = context.painter()->device()->width();
// Set margin according to selected units
int xOffset = 0;
int yOffset = 0;
switch ( mMarginUnit )
{
case QgsUnitTypes::RenderMillimeters:
{
int pixelsInchX = context.painter()->device()->logicalDpiX();
int pixelsInchY = context.painter()->device()->logicalDpiY();
xOffset = pixelsInchX * INCHES_TO_MM * mMarginHorizontal;
yOffset = pixelsInchY * INCHES_TO_MM * mMarginVertical;
break;
}
case QgsUnitTypes::RenderPixels:
xOffset = mMarginHorizontal - 5; // Minus 5 to shift tight into corner
yOffset = mMarginVertical - 5;
break;
case QgsUnitTypes::RenderPercentage:
xOffset = ( ( deviceWidth - size.width() ) / 100. ) * mMarginHorizontal;
yOffset = ( ( deviceHeight - size.width() ) / 100. ) * mMarginVertical;
break;
case QgsUnitTypes::RenderMapUnits:
case QgsUnitTypes::RenderPoints:
case QgsUnitTypes::RenderInches:
case QgsUnitTypes::RenderUnknownUnit:
case QgsUnitTypes::RenderMetersInMapUnits:
break;
}
//Determine placement of label from form combo box
switch ( mPlacement )
{
case BottomLeft:
context.painter()->translate( xOffset, deviceHeight - yOffset - maxLength + ( maxLength - size.height() ) / 2 );
break;
case TopLeft:
context.painter()->translate( xOffset, yOffset );
break;
case TopRight:
context.painter()->translate( deviceWidth - xOffset - maxLength + ( maxLength - size.width() ) / 2, yOffset );
break;
case BottomRight:
context.painter()->translate( deviceWidth - xOffset - maxLength + ( maxLength - size.width() ) / 2,
deviceHeight - yOffset - maxLength + ( maxLength - size.height() ) / 2 );
break;
}
//rotate the canvas by the north arrow rotation amount
context.painter()->rotate( mRotationInt );
//Now we can actually do the drawing, and draw a smooth north arrow even when rotated
context.painter()->translate( xShift, yShift );
svg.render( context.painter(), QRectF( 0, 0, size.width(), size.height() ) );
//unrotate the canvas again
context.painter()->restore();
}
}
void QgsDecorationNorthArrowDialog::drawNorthArrow()
{
int rotation = spinAngle->value();
double maxLength = 64;
QSvgRenderer svg;
const QByteArray &svgContent = QgsApplication::svgCache()->svgContent( mDeco.svgPath(), maxLength, pbnChangeColor->color(), pbnChangeOutlineColor->color(), 1.0, 1.0 );
svg.load( svgContent );
if ( svg.isValid() )
{
QSize size( maxLength, maxLength );
QRectF viewBox = svg.viewBoxF();
if ( viewBox.height() > viewBox.width() )
{
size.setWidth( maxLength * viewBox.width() / viewBox.height() );
}
else
{
size.setHeight( maxLength * viewBox.height() / viewBox.width() );
}
QPixmap myPainterPixmap( maxLength, maxLength );
myPainterPixmap.fill();
QPainter myQPainter;
myQPainter.begin( &myPainterPixmap );
myQPainter.setRenderHint( QPainter::SmoothPixmapTransform );
double centerXDouble = size.width() / 2.0;
double centerYDouble = size.height() / 2.0;
//save the current canvas rotation
myQPainter.save();
myQPainter.translate( ( maxLength - size.width() ) / 2, ( maxLength - size.height() ) / 2 );
//rotate the canvas
myQPainter.rotate( rotation );
//work out how to shift the image so that it appears in the center of the canvas
//(x cos a + y sin a - x, -x sin a + y cos a - y)
double myRadiansDouble = ( M_PI / 180 ) * rotation;
int xShift = static_cast<int>( (
( centerXDouble * std::cos( myRadiansDouble ) ) +
( centerYDouble * std::sin( myRadiansDouble ) )
) - centerXDouble );
int yShift = static_cast<int>( (
( -centerXDouble * std::sin( myRadiansDouble ) ) +
( centerYDouble * std::cos( myRadiansDouble ) )
) - centerYDouble );
//draw the pixmap in the proper position
myQPainter.translate( xShift, yShift );
svg.render( &myQPainter, QRectF( 0, 0, size.width(), size.height() ) );
//unrotate the canvas again
myQPainter.restore();
myQPainter.end();
pixmapLabel->setPixmap( myPainterPixmap );
}
else
{
QPixmap myPainterPixmap( 200, 200 );
myPainterPixmap.fill();
QPainter myQPainter;
myQPainter.begin( &myPainterPixmap );
QFont myQFont( QStringLiteral( "time" ), 12, QFont::Bold );
myQPainter.setFont( myQFont );
myQPainter.setPen( Qt::red );
myQPainter.drawText( 10, 20, tr( "Pixmap not found" ) );
myQPainter.end();
pixmapLabel->setPixmap( myPainterPixmap );
}
}
