#include <KDChartLayoutItems.h>
Inheritance diagram for KDChart::TextLayoutItem:
Public Member Functions | |
const QObject * | autoReferenceArea () const |
virtual Qt::Orientations | expandingDirections () const |
pure virtual in QLayoutItem | |
virtual QRect | geometry () const |
pure virtual in QLayoutItem | |
virtual bool | intersects (const TextLayoutItem &other, const QPoint &myPos, const QPoint &otherPos) const |
virtual bool | intersects (const TextLayoutItem &other, const QPointF &myPos, const QPointF &otherPos) const |
virtual bool | isEmpty () const |
pure virtual in QLayoutItem | |
virtual QSize | maximumSize () const |
pure virtual in QLayoutItem | |
virtual QSize | minimumSize () const |
pure virtual in QLayoutItem | |
virtual void | paint (QPainter *) |
virtual void | paintAll (QPainter &painter) |
Default impl: just call paint. | |
virtual void | paintCtx (PaintContext *context) |
Default impl: Paint the complete item using its layouted position and size. | |
QLayout * | parentLayout () |
virtual QFont | realFont () const |
virtual qreal | realFontSize () const |
void | removeFromParentLayout () |
void | setAutoReferenceArea (const QObject *area) |
virtual void | setGeometry (const QRect &r) |
pure virtual in QLayoutItem | |
void | setParentLayout (QLayout *lay) |
virtual void | setParentWidget (QWidget *widget) |
Inform the item about its widget: This enables the item, to trigger that widget's update, whenever the size of the item's contents has changed. | |
void | setText (const QString &text) |
void | setTextAttributes (const TextAttributes &a) |
Use this to specify the text attributes to be used for this item. | |
virtual QSize | sizeHint () const |
pure virtual in QLayoutItem | |
virtual void | sizeHintChanged () const |
Report changed size hint: ask the parent widget to recalculate the layout. | |
QString | text () const |
TextAttributes | textAttributes () const |
Returns the text attributes to be used for this item. | |
TextLayoutItem (const QString &text, const TextAttributes &attributes, const QObject *autoReferenceArea, KDChartEnums::MeasureOrientation autoReferenceOrientation, Qt::Alignment alignment=0) | |
TextLayoutItem () | |
Protected Attributes | |
QWidget * | mParent |
QLayout * | mParentLayout |
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Definition at line 115 of file KDChartLayoutItems.cpp.
00116 : AbstractLayoutItem( Qt::AlignLeft ) 00117 , mText() 00118 , mAttributes() 00119 , mAutoReferenceArea( 0 ) 00120 , mAutoReferenceOrientation( KDChartEnums::MeasureOrientationHorizontal ) 00121 , cachedSizeHint() // default this to invalid to force just-in-time calculation before first use of sizeHint() 00122 , cachedFontSize( 0.0 ) 00123 , cachedFont( mAttributes.font() ) 00124 { 00125 00126 } |
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Definition at line 99 of file KDChartLayoutItems.cpp.
00104 : AbstractLayoutItem( alignment ) 00105 , mText( text ) 00106 , mAttributes( attributes ) 00107 , mAutoReferenceArea( area ) 00108 , mAutoReferenceOrientation( orientation ) 00109 , cachedSizeHint() // default this to invalid to force just-in-time calculation before first use of sizeHint() 00110 , cachedFontSize( 0.0 ) 00111 , cachedFont( mAttributes.font() ) 00112 { 00113 } |
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Definition at line 135 of file KDChartLayoutItems.cpp. Referenced by KDChart::HeaderFooter::setParent().
00136 {
00137 return mAutoReferenceArea;
00138 }
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pure virtual in QLayoutItem
Definition at line 175 of file KDChartLayoutItems.cpp.
00176 { 00177 return 0; // Grow neither vertically nor horizontally 00178 } |
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pure virtual in QLayoutItem
Definition at line 180 of file KDChartLayoutItems.cpp. Referenced by KDChart::TextArea::areaGeometry(), paint(), KDChart::TextArea::paintAll(), KDChart::CartesianAxis::paintCtx(), and KDChart::TextArea::paintIntoRect().
00181 {
00182 return mRect;
00183 }
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Definition at line 254 of file KDChartLayoutItems.cpp. References mAttributes, PI, rotatedCorners(), KDChart::TextAttributes::rotation(), and unrotatedSizeHint().
00255 { 00256 if ( mAttributes.rotation() != other.mAttributes.rotation() ) 00257 { 00258 // that's the code for the common case: the rotation angles don't need to match here 00259 QPolygon myPolygon( rotatedCorners() ); 00260 QPolygon otherPolygon( other.rotatedCorners() ); 00261 00262 // move the polygons to their positions 00263 myPolygon.translate( myPos ); 00264 otherPolygon.translate( otherPos ); 00265 00266 // create regions out of it 00267 QRegion myRegion( myPolygon ); 00268 QRegion otherRegion( otherPolygon ); 00269 00270 // now the question - do they intersect or not? 00271 return ! myRegion.intersect( otherRegion ).isEmpty(); 00272 00273 } else { 00274 // and that's the code for the special case: the rotation angles match, which is less time consuming in calculation 00275 const qreal angle = mAttributes.rotation() * PI / 180.0; 00276 // both sizes 00277 const QSizeF mySize( unrotatedSizeHint() ); 00278 const QSizeF otherSize( other.unrotatedSizeHint() ); 00279 00280 // that's myP1 relative to myPos 00281 QPointF myP1( mySize.height() * sin( angle ), 0.0 ); 00282 // that's otherP1 to myPos 00283 QPointF otherP1 = QPointF( otherSize.height() * sin( angle ), 0.0 ) + otherPos - myPos; 00284 00285 // now rotate both points the negative angle around myPos 00286 myP1 = QPointF( myP1.x() * cos( -angle ), myP1.x() * sin( -angle ) ); 00287 qreal r = sqrt( otherP1.x() * otherP1.x() + otherP1.y() * otherP1.y() ); 00288 otherP1 = QPointF( r * cos( -angle ), r * sin( -angle ) ); 00289 00290 // finally we look, whether both rectangles intersect or even not 00291 return QRectF( myP1, mySize ).intersects( QRectF( otherP1, otherSize ) ); 00292 } 00293 } |
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Definition at line 249 of file KDChartLayoutItems.cpp. Referenced by KDChart::CartesianAxis::paintCtx().
00250 { 00251 return intersects( other, myPos.toPoint(), otherPos.toPoint() ); 00252 } |
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pure virtual in QLayoutItem
Definition at line 185 of file KDChartLayoutItems.cpp.
00186 { 00187 return false; // never empty, otherwise the layout item would not exist 00188 } |
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pure virtual in QLayoutItem
Definition at line 190 of file KDChartLayoutItems.cpp. References sizeHint().
00191 { 00192 return sizeHint(); // PENDING(kalle) Review, quite inflexible 00193 } |
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pure virtual in QLayoutItem
Definition at line 195 of file KDChartLayoutItems.cpp. References sizeHint().
00196 { 00197 return sizeHint(); // PENDING(kalle) Review, quite inflexible 00198 } |
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Implements KDChart::AbstractLayoutItem. Definition at line 382 of file KDChartLayoutItems.cpp. References geometry(), KDChart::TextAttributes::pen(), rotatedRect(), and KDChart::TextAttributes::rotation(). Referenced by KDChart::TextArea::paintAll(), and KDChart::CartesianAxis::paintCtx().
00383 { 00384 // make sure, cached font is updated, if needed: 00385 // sizeHint(); 00386 00387 if( !mRect.isValid() ) 00388 return; 00389 00390 PainterSaver painterSaver( painter ); 00391 painter->setFont( cachedFont ); 00392 QRectF rect( geometry() ); 00393 00394 // #ifdef DEBUG_ITEMS_PAINT 00395 // painter->setPen( Qt::black ); 00396 // painter->drawRect( rect ); 00397 // #endif 00398 painter->translate( rect.center() ); 00399 rect.moveTopLeft( QPointF( - rect.width() / 2, - rect.height() / 2 ) ); 00400 #ifdef DEBUG_ITEMS_PAINT 00401 painter->setPen( Qt::blue ); 00402 painter->drawRect( rect ); 00403 #endif 00404 painter->rotate( mAttributes.rotation() ); 00405 rect = rotatedRect( rect, mAttributes.rotation() ); 00406 #ifdef DEBUG_ITEMS_PAINT 00407 painter->setPen( Qt::red ); 00408 painter->drawRect( rect ); 00409 #endif 00410 painter->setPen( mAttributes.pen() ); 00411 painter->drawText( rect, Qt::AlignHCenter | Qt::AlignVCenter, mText ); 00412 // if ( calcSizeHint( cachedFont ).width() > rect.width() ) 00413 // qDebug() << "rect.width()" << rect.width() << "text.width()" << calcSizeHint( cachedFont ).width(); 00414 // 00415 // //painter->drawText( rect, Qt::AlignHCenter | Qt::AlignVCenter, mText ); 00416 } |
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Default impl: just call paint. Derived classes like KDChart::AbstractArea are providing additional action here. Reimplemented in KDChart::AbstractArea, and KDChart::TextArea. Definition at line 69 of file KDChartLayoutItems.cpp. References KDChart::AbstractLayoutItem::paint().
00070 { 00071 paint( &painter ); 00072 } |
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Default impl: Paint the complete item using its layouted position and size.
Reimplemented in KDChart::CartesianAxis. Definition at line 77 of file KDChartLayoutItems.cpp. References KDChart::AbstractLayoutItem::paint(), and KDChart::PaintContext::painter().
00078 { 00079 if( context ) 00080 paint( context->painter() ); 00081 } |
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Definition at line 74 of file KDChartLayoutItems.h.
00075 { 00076 return mParentLayout; 00077 } |
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Definition at line 226 of file KDChartLayoutItems.cpp. Referenced by KDChart::CartesianAxis::maximumSize(), and KDChart::CartesianAxis::paintCtx().
00227 { 00228 realFontWasRecalculated(); // we can safely ignore the boolean return value 00229 return cachedFont; 00230 } |
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Definition at line 206 of file KDChartLayoutItems.cpp. References KDChart::TextAttributes::calculatedFontSize().
00207 { 00208 return mAttributes.calculatedFontSize( mAutoReferenceArea, mAutoReferenceOrientation ); 00209 } |
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Definition at line 78 of file KDChartLayoutItems.h. Referenced by KDChart::Chart::takeCoordinatePlane().
00079 { 00080 if( mParentLayout ){ 00081 if( widget() ) 00082 mParentLayout->removeWidget( widget() ); 00083 else 00084 mParentLayout->removeItem( this ); 00085 } 00086 } |
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Definition at line 128 of file KDChartLayoutItems.cpp. References sizeHint(). Referenced by KDChart::HeaderFooter::setParent().
00129 { 00130 mAutoReferenceArea = area; 00131 cachedSizeHint = QSize(); 00132 sizeHint(); 00133 } |
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pure virtual in QLayoutItem
Definition at line 200 of file KDChartLayoutItems.cpp. Referenced by KDChart::TextArea::paintAll(), KDChart::CartesianAxis::paintCtx(), and KDChart::TextArea::paintIntoRect().
00201 { 00202 mRect = r; 00203 } |
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Definition at line 70 of file KDChartLayoutItems.h.
00071 { 00072 mParentLayout = lay; 00073 } |
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Inform the item about its widget: This enables the item, to trigger that widget's update, whenever the size of the item's contents has changed. Thus, you need to call setParentWidget on every item, that has a non-fixed size. Definition at line 64 of file KDChartLayoutItems.cpp. References KDChart::AbstractLayoutItem::mParent. Referenced by KDChart::Legend::buildLegend(), and KDChart::AbstractCartesianDiagram::takeAxis().
00065 { 00066 mParent = widget; 00067 } |
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Definition at line 140 of file KDChartLayoutItems.cpp. References sizeHint(). Referenced by KDChart::Widget::addHeaderFooter(), KDChart::CartesianAxis::maximumSize(), and KDChart::CartesianAxis::paintCtx().
00141 { 00142 mText = text; 00143 cachedSizeHint = QSize(); 00144 sizeHint(); 00145 } |
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Use this to specify the text attributes to be used for this item.
Definition at line 157 of file KDChartLayoutItems.cpp. References sizeHint(). Referenced by KDChart::HeaderFooter::clone().
00158 { 00159 mAttributes = a; 00160 cachedSizeHint = QSize(); // invalidate size hint 00161 sizeHint(); 00162 } |
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pure virtual in QLayoutItem
Definition at line 295 of file KDChartLayoutItems.cpp. References KDChart::AbstractLayoutItem::sizeHintChanged(). Referenced by maximumSize(), KDChart::CartesianAxis::maximumSize(), minimumSize(), KDChart::CartesianAxis::paintCtx(), setAutoReferenceArea(), setText(), and setTextAttributes().
00296 { 00297 if( realFontWasRecalculated() ) 00298 { 00299 const QSize newSizeHint( calcSizeHint( cachedFont ) ); 00300 if( newSizeHint != cachedSizeHint ){ 00301 cachedSizeHint = newSizeHint; 00302 sizeHintChanged(); 00303 } 00304 } 00305 //qDebug() << "-------- KDChart::TextLayoutItem::sizeHint() returns:"<<cachedSizeHint<<" ----------"; 00306 return cachedSizeHint; 00307 } |
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Report changed size hint: ask the parent widget to recalculate the layout.
Definition at line 86 of file KDChartLayoutItems.cpp. Referenced by sizeHint().
00087 { 00088 // This is exactly like what QWidget::updateGeometry does. 00089 // qDebug("KDChart::AbstractLayoutItem::sizeHintChanged() called"); 00090 if( mParent ) { 00091 if ( mParent->layout() ) 00092 mParent->layout()->invalidate(); 00093 else 00094 QApplication::postEvent( mParent, new QEvent( QEvent::LayoutRequest ) ); 00095 } 00096 } |
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Definition at line 147 of file KDChartLayoutItems.cpp. Referenced by KDChart::CartesianAxis::paintCtx().
00148 {
00149 return mText;
00150 }
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Returns the text attributes to be used for this item.
Definition at line 169 of file KDChartLayoutItems.cpp. Referenced by KDChart::HeaderFooter::clone().
00170 {
00171 return mAttributes;
00172 }
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Definition at line 88 of file KDChartLayoutItems.h. Referenced by KDChart::AbstractLayoutItem::setParentWidget(). |
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Definition at line 89 of file KDChartLayoutItems.h. |