34 #include <QCoreApplication>
36 #include <QDomElement>
45 , mHtmlUnitsToMM( 1.0 )
46 , mHtmlLoaded( false )
49 , mFontColor(
QColor( 0, 0, 0 ) )
50 , mHAlignment(
Qt::AlignLeft )
51 , mVAlignment(
Qt::AlignTop )
52 , mExpressionLayer( 0 )
56 mHtmlUnitsToMM = htmlUnitsToMM();
61 if ( !defaultFontString.
isEmpty() )
91 Q_UNUSED( itemStyle );
109 double xPenAdjust = mMarginX < 0 ? -penWidth : penWidth;
110 double yPenAdjust = mMarginY < 0 ? -penWidth : penWidth;
111 QRectF painterRect( xPenAdjust + mMarginX, yPenAdjust + mMarginY,
rect().width() - 2 * xPenAdjust - 2 * mMarginX,
rect().height() - 2 * yPenAdjust - 2 * mMarginY );
117 painter->
scale( 1.0 / mHtmlUnitsToMM / 10.0, 1.0 / mHtmlUnitsToMM / 10.0 );
128 palette.
setBrush( QPalette::Base, Qt::transparent );
147 connect( &timeoutTimer, SIGNAL( timeout() ), &loop, SLOT( quit() ) );
148 connect( webPage, SIGNAL( loadFinished(
bool ) ), &loop, SLOT( quit() ) );
154 connect( webPage, SIGNAL( loadFinished(
bool ) ), SLOT( loadingHtmlFinished(
bool ) ) );
164 timeoutTimer.
start( 20000 );
176 QgsComposerUtils::drawText( painter, painterRect, textToDraw, mFont, mFontColor, mHAlignment, mVAlignment, Qt::TextWordWrap );
189 void QgsComposerLabel::loadingHtmlFinished(
bool result )
195 double QgsComposerLabel::htmlUnitsToMM()
220 if ( state == mHtmlState )
237 mExpressionLayer = layer;
238 mSubstitutions = substitutions;
262 mSubstitutions = substitutions;
267 mExpressionLayer = 0;
268 mExpressionFeature.
reset();
298 replaceDateText( displayText );
304 if ( mExpressionFeature.
data() )
305 context->setFeature( *mExpressionFeature.
data() );
306 if ( mExpressionLayer )
307 context->setFields( mExpressionLayer->
fields() );
312 void QgsComposerLabel::replaceDateText(
QString& text )
const
314 QString constant =
"$CURRENT_DATE";
315 int currentDatePos = text.
indexOf( constant );
316 if ( currentDatePos != -1 )
320 int openingBracketPos = text.
indexOf(
"(", currentDatePos );
321 int closingBracketPos = text.
indexOf(
")", openingBracketPos + 1 );
322 if ( openingBracketPos != -1 &&
323 closingBracketPos != -1 &&
324 ( closingBracketPos - openingBracketPos ) > 1 &&
325 openingBracketPos == currentDatePos + constant.
size() )
327 formatText = text.
mid( openingBracketPos + 1, closingBracketPos - openingBracketPos - 1 );
368 double width = textWidth + 2 * mMarginX + 2 * penWidth + 1;
369 double height = fontHeight + 2 * mMarginY + 2 * penWidth;
374 itemShiftAdjustSize( width, height, xShift, yShift );
397 composerLabelElem.
setAttribute(
"htmlState", mHtmlState );
402 composerLabelElem.
setAttribute(
"halign", mHAlignment );
403 composerLabelElem.
setAttribute(
"valign", mVAlignment );
417 return _writeXML( composerLabelElem, doc );
432 mText = itemElem.
attribute(
"labelText" );
438 bool marginXOk =
false;
439 bool marginYOk =
false;
442 if ( !marginXOk || !marginYOk )
451 mHAlignment = ( Qt::AlignmentFlag )( itemElem.
attribute(
"halign" ).
toInt() );
454 mVAlignment = ( Qt::AlignmentFlag )( itemElem.
attribute(
"valign" ).
toInt() );
461 if ( fontColorList.
size() > 0 )
467 mFontColor =
QColor( red, green, blue );
471 mFontColor =
QColor( 0, 0, 0 );
476 if ( composerItemList.
size() > 0 )
495 if ( !
id().isEmpty() )
502 return tr(
"<HTML label>" );
509 return tr(
"<label>" );
525 rectangle.
adjust( -penWidth, -penWidth, penWidth, penWidth );
529 rectangle.
adjust( mMarginX, 0, -mMarginX, 0 );
533 rectangle.
adjust( 0, mMarginY, 0, -mMarginY );
551 void QgsComposerLabel::itemShiftAdjustSize(
double newWidth,
double newHeight,
double& xShift,
double& yShift )
const
561 if ( mHAlignment == Qt::AlignHCenter )
563 xShift = - ( newWidth - currentWidth ) / 2.0;
565 else if ( mHAlignment == Qt::AlignRight )
567 xShift = - ( newWidth - currentWidth );
569 if ( mVAlignment == Qt::AlignVCenter )
571 yShift = -( newHeight - currentHeight ) / 2.0;
573 else if ( mVAlignment == Qt::AlignBottom )
575 yShift = - ( newHeight - currentHeight );
580 if ( mHAlignment == Qt::AlignHCenter )
582 yShift = -( newHeight - currentHeight ) / 2.0;
584 else if ( mHAlignment == Qt::AlignRight )
586 yShift = -( newHeight - currentHeight );
588 if ( mVAlignment == Qt::AlignTop )
590 xShift = -( newWidth - currentWidth );
592 else if ( mVAlignment == Qt::AlignVCenter )
594 xShift = -( newWidth - currentWidth / 2.0 );
599 if ( mHAlignment == Qt::AlignHCenter )
601 xShift = -( newWidth - currentWidth ) / 2.0;
603 else if ( mHAlignment == Qt::AlignLeft )
605 xShift = -( newWidth - currentWidth );
607 if ( mVAlignment == Qt::AlignVCenter )
609 yShift = ( newHeight - currentHeight ) / 2.0;
611 else if ( mVAlignment == Qt::AlignTop )
613 yShift = ( newHeight - currentHeight );
618 if ( mHAlignment == Qt::AlignHCenter )
620 yShift = -( newHeight - currentHeight ) / 2.0;
622 else if ( mHAlignment == Qt::AlignLeft )
624 yShift = -( newHeight - currentHeight );
626 if ( mVAlignment == Qt::AlignBottom )
628 xShift = -( newWidth - currentWidth );
630 else if ( mVAlignment == Qt::AlignVCenter )
632 xShift = -( newWidth - currentWidth / 2.0 );
void setBrush(ColorRole role, const QBrush &brush)
QDomNodeList elementsByTagName(const QString &tagname) const
int indexOf(QChar ch, int from, Qt::CaseSensitivity cs) const
void setHtmlState(int state)
bool readXML(const QDomElement &itemElem, const QDomDocument &doc) override
Sets state from Dom document.
void setRenderHint(RenderHint hint, bool on)
QDomNode appendChild(const QDomNode &newChild)
QString attribute(const QString &name, const QString &defValue) const
void setSubstitutions(const QMap< QString, QVariant > &substitutions=(QMap< QString, QVariant >()))
Sets the list of local variable substitutions for evaluating expressions in label text...
QgsComposerModel * itemsModel()
Returns the items model attached to the composition.
QgsFields fields() const
Returns the list of fields of this layer.
long srsid() const
Get the SrsId - if possible.
void itemChanged()
Emitted when the item changes.
const QgsMapSettings & mapSettings() const
Return setting of QGIS map canvas.
void setSourceCrs(long srsid)
sets source spatial reference system (by QGIS CRS)
void scale(qreal sx, qreal sy)
A item that forms part of a map composition.
QString simplified() const
static void drawText(QPainter *painter, const QPointF &pos, const QString &text, const QFont &font, const QColor &color=QColor())
Draws text on a painter at a specific position, taking care of composer specific issues (calculation ...
bool enabled() const
Returns whether the atlas generation is enabled.
bool hasCrsTransformEnabled() const
returns true if projections are enabled for this layer set
virtual void drawFrame(QPainter *p)
Draw black frame around item.
virtual void setFrameEnabled(const bool drawFrame)
Set whether this item has a frame drawn around it or not.
bool setEllipsoid(const QString &ellipsoid)
sets ellipsoid by its acronym
void setFont(const QFont &f)
The feature class encapsulates a single feature including its id, geometry and a list of field/values...
double toDouble(bool *ok) const
virtual QgsExpressionContext * createExpressionContext() const override
Creates an expression context relating to the objects's current state.
QString tr(const char *sourceText, const char *disambiguation, int n)
void adjust(qreal dx1, qreal dy1, qreal dx2, qreal dy2)
void update(const QRectF &rect)
void updateItemDisplayName(QgsComposerItem *item)
Must be called when an item's display name is modified.
const QString GEO_NONE
Constant that holds the string representation for "No ellips/No CRS".
bool writeXML(QDomElement &elem, QDomDocument &doc) const override
Stores state in Dom element.
bool _readXML(const QDomElement &itemElem, const QDomDocument &doc)
Reads parameter that are not subclass specific in document.
QDomElement toElement() const
void setFont(const QFont &font)
QString number(int n, int base)
void setHtml(const QString &html, const QUrl &baseUrl)
int exec(QFlags< QEventLoop::ProcessEventsFlag > flags)
virtual void drawSelectionBoxes(QPainter *p)
Draws additional graphics on selected items.
int printResolution() const
void setAttribute(const QString &name, const QString &value)
Q_DECL_DEPRECATED void setExpressionContext(QgsFeature *feature, QgsVectorLayer *layer, const QMap< QString, QVariant > &substitutions=(QMap< QString, QVariant >()))
Sets the current feature, the current layer and a list of local variable substitutions for evaluating...
const QgsCoordinateReferenceSystem & destinationCrs() const
returns CRS of destination coordinate reference system
int toInt(bool *ok, int base) const
QRectF evalItemRect(const QRectF &newRect, const bool resizeOnly=false, const QgsExpressionContext *context=0)
Evaluates an item's bounding rect to consider data defined position and size of item and reference po...
QWebFrame * mainFrame() const
The QWebPage class is a collection of stubs to mimic the API of a QWebPage on systems where QtWebkit ...
QgsComposerLabel(QgsComposition *composition)
void setZoomFactor(qreal factor)
static bool setFromXmlChildNode(QFont &font, const QDomElement &element, const QString &childNode)
Sets the properties of a font to match the properties stored in an XML child node.
bool shouldDrawItem() const
Returns whether the item should be drawn in the current context.
void setBackgroundEnabled(const bool drawBackground)
Set whether this item has a Background drawn around it or not.
QRectF boundingRect() const override
In case of negative margins, the bounding rect may be larger than the label's frame.
void setMarginX(const double margin)
Sets the horizontal margin between the edge of the frame and the label contents.
void prepareGeometryChange()
Graphics scene for map printing.
void setAttribute(WebAttribute attribute, bool on)
void setMarginY(const double margin)
Sets the vertical margin between the edge of the frame and the label contents.
QWebSettings * settings() const
void setPointSizeF(qreal pointSize)
void paint(QPainter *painter, const QStyleOptionGraphicsItem *itemStyle, QWidget *pWidget) override
Reimplementation of QCanvasItem::paint.
virtual void setFrameOutlineWidth(const double outlineWidth)
Sets frame outline width.
General purpose distance and area calculator.
static double textWidthMM(const QFont &font, const QString &text)
Calculate font width in millimeters for a string, including workarounds for QT font rendering issues...
QgsComposition * mComposition
QString & replace(int position, int n, QChar after)
static double fontHeightMM(const QFont &font)
Calculate font height in millimeters, including workarounds for QT font rendering issues The font hei...
QVariant value(const QString &key, const QVariant &defaultValue) const
void render(QPainter *painter)
QString mid(int position, int n) const
bool _writeXML(QDomElement &itemElem, QDomDocument &doc) const
Writes parameter that are not subclass specific in document.
static QgsNetworkAccessManager * instance()
returns a pointer to the single instance
virtual void setItemRotation(const double r, const bool adjustPosition=false)
Sets the item rotation.
virtual void drawBackground(QPainter *p)
Draw background.
bool hasFrame() const
Whether this item has a frame or not.
static QgsProject * instance()
access to canonical QgsProject instance
void setFamily(const QString &family)
void setMargin(const double m)
Sets the margin between the edge of the frame and the label contents.
virtual void setSceneRect(const QRectF &rectangle)
Sets this items bound in scene coordinates such that 1 item size units corresponds to 1 scene size un...
void setText(const QString &text)
QString left(int n) const
const QgsCoordinateReferenceSystem & crs() const
Returns layer's spatial reference system.
Q_DECL_DEPRECATED double margin()
Returns the margin between the edge of the frame and the label contents.
void refreshExpressionContext()
QgsAtlasComposition & atlasComposition()
QgsVectorLayer * coverageLayer() const
Returns the coverage layer used for the atlas features.
static QDomElement toXmlElement(const QFont &font, QDomDocument &document, const QString &elementName)
Returns a DOM element containing the properties of the font.
QDomElement createElement(const QString &tagName)
QgsComposition::PlotStyle plotStyle() const
bool connect(const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
Represents a vector layer which manages a vector based data sets.
void setViewportSize(const QSize &size) const
QString arg(qlonglong a, int fieldWidth, int base, const QChar &fillChar) const
QString displayText() const
Returns the text as it appears on screen (with replaced data field)
void setNetworkAccessManager(QNetworkAccessManager *manager)
double mItemRotation
Item rotation in degrees, clockwise.
void adjustSizeToText()
Resizes the widget such that the text fits to the item.
void setEllipsoidalMode(bool flag)
sets whether coordinates must be projected to ellipsoid before measuring
char * toString(const QLatin1String &string)
QDomNode at(int index) const
virtual void setFrameEnabled(const bool drawFrame) override
Reimplemented to call prepareGeometryChange after toggling frame.
void setSingleShot(bool singleShot)
virtual QString displayName() const override
Get item display name.
static Q_DECL_DEPRECATED QString replaceExpressionText(const QString &action, const QgsFeature *feat, QgsVectorLayer *layer, const QMap< QString, QVariant > *substitutionMap=0, const QgsDistanceArea *distanceArea=0)
This function currently replaces each expression between [% and %] in the string with the result of i...
virtual void setFrameOutlineWidth(const double outlineWidth) override
Reimplemented to call prepareGeometryChange after changing outline width.
QString id() const
Get item's id (which is not necessarly unique)