Make okular able to construct and display Geometric (Rectangle/Ellipse) Annotations.

Extended the annotation properties dialog to choose the type (rect/ellipse) or the color for the inner part.
Added a button in the review toolbar to construct a cyan ellipse.

svn path=/trunk/playground/graphics/okular/; revision=606023

ui/annotationwidgets.cpp

@@ -8,12 +8,14 @@
  ***************************************************************************/
 
 // qt/kde includes
+#include <qcheckbox.h>
 #include <qcombobox.h>
 #include <qgroupbox.h>
 #include <qlabel.h>
 #include <qlayout.h>
 #include <qspinbox.h>
 #include <qvariant.h>
+#include <kcolorbutton.h>
 #include <kiconloader.h>
 #include <klocale.h>
 #include <kdebug.h>
@@ -108,6 +110,9 @@ AnnotationWidget * AnnotationWidgetFactory::widgetFor( Okular::Annotation * ann
         case Okular::Annotation::AHighlight:
             return new HighlightAnnotationWidget( ann );
             break;
+        case Okular::Annotation::AGeom:
+            return new GeomAnnotationWidget( ann );
+            break;
         // shut up gcc
         default:
             ;
@@ -338,4 +343,65 @@ void HighlightAnnotationWidget::applyChanges()
 
 
 
+GeomAnnotationWidget::GeomAnnotationWidget( Okular::Annotation * ann )
+    : AnnotationWidget( ann ), m_widget( 0 )
+{
+    m_geomAnn = static_cast< Okular::GeomAnnotation * >( ann );
+}
+
+QWidget * GeomAnnotationWidget::widget()
+{
+    if ( m_widget )
+        return m_widget;
+
+    m_widget = new QWidget();
+    QGridLayout * lay = new QGridLayout( m_widget );
+    lay->setMargin( 0 );
+    QLabel * tmplabel = new QLabel( i18n( "Type:" ), m_widget );
+    lay->addWidget( tmplabel, 0, 0 );
+    m_typeCombo = new QComboBox( m_widget );
+    tmplabel->setBuddy( m_typeCombo );
+    lay->addWidget( m_typeCombo, 0, 1 );
+    m_useColor = new QCheckBox( i18n( "Inner color:" ), m_widget );
+    lay->addWidget( m_useColor, 1, 0 );
+    m_innerColor = new KColorButton( m_widget );
+    lay->addWidget( m_innerColor, 1, 1 );
+
+    m_typeCombo->addItem( i18n( "Rectangle" ) );
+    m_typeCombo->addItem( i18n( "Ellipse" ) );
+    m_typeCombo->setCurrentIndex( m_geomAnn->geomType );
+    m_innerColor->setColor( m_geomAnn->geomInnerColor );
+    if ( m_geomAnn->geomInnerColor.isValid() )
+    {
+        m_useColor->setChecked( true );
+    }
+    else
+    {
+        m_innerColor->setEnabled( false );
+    }
+
+    connect( m_typeCombo, SIGNAL( currentIndexChanged ( int ) ), this, SIGNAL( dataChanged() ) );
+    connect( m_innerColor, SIGNAL( changed( const QColor & ) ), this, SIGNAL( dataChanged() ) );
+    connect( m_useColor, SIGNAL( toggled( bool ) ), this, SIGNAL( dataChanged() ) );
+    connect( m_useColor, SIGNAL( toggled( bool ) ), m_innerColor, SLOT( setEnabled( bool ) ) );
+
+    return m_widget;
+}
+
+void GeomAnnotationWidget::applyChanges()
+{
+    m_geomAnn->geomType = (Okular::GeomAnnotation::GeomType)m_typeCombo->currentIndex();
+    if ( !m_useColor->isChecked() )
+    {
+        m_geomAnn->geomInnerColor = QColor();
+    }
+    else
+    {
+        m_geomAnn->geomInnerColor = m_innerColor->color();
+    }
+}
+
+
+
+
 #include "annotationwidgets.moc"

ui/annotationwidgets.h

@@ -14,10 +14,12 @@
 
 #include "core/annotations.h"
 
+class QCheckBox;
 class QComboBox;
 class QDoubleSpinBox;
 class QLabel;
 class QWidget;
+class KColorButton;
 class AnnotationWidget;
 
 class PixmapPreviewSelector
@@ -157,4 +159,24 @@ private:
     QComboBox * m_typeCombo;
 };
 
+class GeomAnnotationWidget
+  : public AnnotationWidget
+{
+    Q_OBJECT
+
+public:
+    GeomAnnotationWidget( Okular::Annotation * ann );
+
+    virtual QWidget * widget();
+
+    virtual void applyChanges();
+
+private:
+    Okular::GeomAnnotation * m_geomAnn;
+    QWidget * m_widget;
+    QComboBox * m_typeCombo;
+    QCheckBox * m_useColor;
+    KColorButton * m_innerColor;
+};
+
 #endif

ui/data/tools.xml

@@ -80,4 +80,11 @@ Engine/Annotation Types [specific attributes]:
         </engine>
         <shortcut>9</shortcut>
     </tool>
+    <tool id="10" name="Cyan Ellipse" pixmap="ellipse">
+        <tooltip>A cyan ellipse</tooltip>
+        <engine type="PickPoint" color="#00ffff">
+            <annotation type="GeomCircle" color="#00ffff" />
+        </engine>
+        <shortcut>10</shortcut>
+    </tool>
 </annotatingTools>

ui/pagepainter.cpp

@@ -28,6 +28,7 @@
 #include "core/area.h"
 #include "core/page.h"
 #include "core/annotations.h"
+#include "core/utils.h"
 #include "settings.h"
 
 static KStaticDeleter<QPixmap> sd;
@@ -595,6 +596,35 @@ void PagePainter::paintPageOnPainter( QPainter * destPainter, const Okular::Page
                 mixedPainter->drawPixmap( annotRect.topLeft(), pixmap );
             }
             // draw GeomAnnotation
+            else if ( type == Okular::Annotation::AGeom )
+            {
+                Okular::GeomAnnotation * geom = (Okular::GeomAnnotation *)a;
+                QImage shape( annotBoundary.size(), QImage::Format_ARGB32 );
+                shape.fill( qRgba( 0, 0, 0, 0 ) );
+                // width is already divided by two
+                double width = geom->geomWidthPt * Okular::Utils::getDpiX() / ( 72.0 * 2.0 ) * scaledWidth / page->width();
+                QPainter p( &shape );
+                p.setPen( QPen( QBrush( QColor( a->style.color.red(), a->style.color.green(), a->style.color.blue(), opacity ) ), width * 2, Qt::SolidLine, Qt::SquareCap, Qt::MiterJoin ) );
+                QRectF r( .0, .0, annotBoundary.width(), annotBoundary.height() );
+                r.adjust( width, width, -width, -width );
+                if ( geom->geomType == Okular::GeomAnnotation::InscribedSquare )
+                    p.drawRect( r );
+                else
+                    p.drawEllipse( r );
+                if ( geom->geomInnerColor.isValid() )
+                {
+                    p.setPen( Qt::NoPen );
+                    p.setBrush( geom->geomInnerColor );
+                    r.adjust( width, width, -width, -width );
+                    if ( geom->geomType == Okular::GeomAnnotation::InscribedSquare )
+                        p.drawRect( r );
+                    else
+                        p.drawEllipse( r );
+                }
+                p.end();
+                mixedPainter->drawImage( annotBoundary.topLeft(), shape );
+            }
+#if 0
             else // WARNING: TEMPORARY CODE! migrate everything to AGG
             {
                 //GeomAnnotation * geom = (GeomAnnotation *)a;
@@ -608,6 +638,7 @@ void PagePainter::paintPageOnPainter( QPainter * destPainter, const Okular::Page
                 //}
                 //else if ( geom->geomType == GeomAnnotation::InscribedCircle )
             }
+#endif
 
             // draw extents rectangle
             if ( Okular::Settings::debugDrawAnnotationRect() )

ui/pageviewannotator.cpp

@@ -199,6 +199,24 @@ class PickPointEngine : public AnnotatorEngine
                 rect.bottom = rect.top + stampyscale;
                 sa->boundary = rect;
             }
+            // create GeomAnnotation
+            else if ( typeString == "GeomSquare" || typeString == "GeomCircle" )
+            {
+                Okular::GeomAnnotation * ga = new Okular::GeomAnnotation();
+                ann = ga;
+                // set the type
+                if ( typeString == "GeomSquare" )
+                    ga->geomType = Okular::GeomAnnotation::InscribedSquare;
+                else
+                    ga->geomType = Okular::GeomAnnotation::InscribedCircle;
+                ga->geomWidthPt = 18;
+                //set boundary
+                rect.left = qMin( startpoint.x, point.x );
+                rect.top = qMin( startpoint.y, point.y );
+                rect.right = qMax( startpoint.x, point.x );
+                rect.bottom = qMax( startpoint.y, point.y );
+                ga->boundary = rect;
+            }
 
             // safety check
             if ( !ann )