QGIS/python/core/composer/qgscomposerutils.sip
2017-06-20 15:36:04 +02:00

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/************************************************************************
* This file has been generated automatically from *
* *
* src/core/composer/qgscomposerutils.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.pl again *
************************************************************************/
class QgsComposerUtils
{
%Docstring
Utilities for compositions.
%End
%TypeHeaderCode
#include "qgscomposerutils.h"
%End
public:
static void drawArrowHead( QPainter *p, const double x, const double y, const double angle, const double arrowHeadWidth );
%Docstring
Draws an arrow head on to a QPainter.
\param p destination painter
\param x x-coordinate of arrow center
\param y y-coordinate of arrow center
\param angle angle in degrees which arrow should point toward, measured
clockwise from pointing vertical upward
\param arrowHeadWidth size of arrow head
%End
static double angle( QPointF p1, QPointF p2 );
%Docstring
Calculates the angle of the line from p1 to p2 (counter clockwise,
starting from a line from north to south)
\param p1 start point of line
\param p2 end point of line
:return: angle in degrees, clockwise from south
:rtype: float
%End
static void rotate( const double angle, double &x, double &y );
%Docstring
Rotates a point / vector around the origin.
\param angle rotation angle in degrees, counterclockwise
\param x in/out: x coordinate before / after the rotation
\param y in/out: y cooreinate before / after the rotation
%End
static double normalizedAngle( const double angle );
%Docstring
Ensures that an angle is in the range 0 <= angle < 360
\param angle angle in degrees
:return: equivalent angle within the range [0, 360)
.. seealso:: snappedAngle
:rtype: float
%End
static double snappedAngle( const double angle );
%Docstring
Snaps an angle to its closest 45 degree angle
\param angle angle in degrees
:return: angle snapped to 0, 45/90/135/180/225/270 or 315 degrees
:rtype: float
%End
static QRectF largestRotatedRectWithinBounds( const QRectF &originalRect, const QRectF &boundsRect, const double rotation );
%Docstring
Calculates the largest scaled version of originalRect which fits within boundsRect, when it is rotated by
a specified amount.
\param originalRect QRectF to be rotated and scaled
\param boundsRect QRectF specifying the bounds which the rotated and scaled rectangle must fit within
\param rotation the rotation in degrees to be applied to the rectangle
:return: largest scaled version of the rectangle possible
:rtype: QRectF
%End
static double pointsToMM( const double pointSize );
%Docstring
Returns the size in mm corresponding to a font point size
\param pointSize font size in points
.. seealso:: mmToPoints
:rtype: float
%End
static double mmToPoints( const double mmSize );
%Docstring
Returns the size in mm corresponding to a font point size
\param mmSize font size in mm
.. seealso:: pointsToMM
:rtype: float
%End
static void relativeResizeRect( QRectF &rectToResize, const QRectF &boundsBefore, const QRectF &boundsAfter );
%Docstring
Resizes a QRectF relative to a resized bounding rectangle.
\param rectToResize QRectF to resize, contained within boundsBefore. The
rectangle is linearly scaled to retain its relative position and size within
boundsAfter.
\param boundsBefore QRectF of bounds before resize
\param boundsAfter QRectF of bounds after resize
%End
static double relativePosition( const double position, const double beforeMin, const double beforeMax, const double afterMin, const double afterMax );
%Docstring
Returns a scaled position given a before and after range
\param position initial position within before range to scale
\param beforeMin minimum value in before range
\param beforeMax maximum value in before range
\param afterMin minimum value in after range
\param afterMax maximum value in after range
:return: position scaled to range specified by afterMin and afterMax
:rtype: float
%End
static QgsComposition::PaperOrientation decodePaperOrientation( const QString &orientationString, bool &ok );
%Docstring
Decodes a string representing a paper orientation
\param orientationString string to decode
\param ok will be true if string could be decoded
:return: decoded paper orientation
:rtype: QgsComposition.PaperOrientation
%End
static bool decodePresetPaperSize( const QString &presetString, double &width, double &height );
%Docstring
Decodes a string representing a preset page size
\param presetString string to decode
\param width double for decoded paper width
\param height double for decoded paper height
:return: true if string could be decoded successfully
:rtype: bool
%End
static void readOldDataDefinedPropertyMap( const QDomElement &itemElem,
QgsPropertyCollection &dataDefinedProperties );
%Docstring
Reads all pre 3.0 data defined properties from an XML element.
.. versionadded:: 3.0
.. seealso:: readDataDefinedProperty
.. seealso:: writeDataDefinedPropertyMap
%End
static QgsProperty readOldDataDefinedProperty( const QgsComposerObject::DataDefinedProperty property, const QDomElement &ddElem );
%Docstring
Reads a pre 3.0 data defined property from an XML DOM element.
.. versionadded:: 3.0
.. seealso:: readDataDefinedPropertyMap
:rtype: QgsProperty
%End
static QFont scaledFontPixelSize( const QFont &font );
%Docstring
Returns a font where size is set in pixels and the size has been upscaled with FONT_WORKAROUND_SCALE
to workaround QT font rendering bugs
\param font source font with size set in points
:return: font with size set in pixels
.. versionadded:: 2.5
:rtype: QFont
%End
static double fontAscentMM( const QFont &font );
%Docstring
Calculate font ascent in millimeters, including workarounds for QT font rendering issues
\param font input font
:return: font ascent in millimeters
.. versionadded:: 2.5
.. seealso:: fontDescentMM
.. seealso:: fontHeightMM
.. seealso:: fontHeightCharacterMM
.. seealso:: textWidthMM
:rtype: float
%End
static double fontDescentMM( const QFont &font );
%Docstring
Calculate font descent in millimeters, including workarounds for QT font rendering issues
\param font input font
:return: font descent in millimeters
.. versionadded:: 2.5
.. seealso:: fontAscentMM
.. seealso:: fontHeightMM
.. seealso:: fontHeightCharacterMM
.. seealso:: textWidthMM
:rtype: float
%End
static double fontHeightMM( const QFont &font );
%Docstring
Calculate font height in millimeters, including workarounds for QT font rendering issues
The font height is the font ascent + descent + 1 (for the baseline).
\param font input font
:return: font height in millimeters
.. versionadded:: 2.5
.. seealso:: fontAscentMM
.. seealso:: fontDescentMM
.. seealso:: fontHeightCharacterMM
.. seealso:: textWidthMM
:rtype: float
%End
static double fontHeightCharacterMM( const QFont &font, QChar character );
%Docstring
Calculate font height in millimeters of a single character, including workarounds for QT font
rendering issues
\param font input font
\param character character to calculate height for
:return: character height in millimeters
.. versionadded:: 2.5
.. seealso:: fontAscentMM
.. seealso:: fontDescentMM
.. seealso:: fontHeightMM
.. seealso:: textWidthMM
:rtype: float
%End
static double textWidthMM( const QFont &font, const QString &text );
%Docstring
Calculate font width in millimeters for a string, including workarounds for QT font
rendering issues
\param font input font
\param text string to calculate width of
:return: string width in millimeters
.. versionadded:: 2.5
.. seealso:: fontAscentMM
.. seealso:: fontDescentMM
.. seealso:: fontHeightMM
.. seealso:: fontHeightCharacterMM
.. seealso:: textHeightMM
:rtype: float
%End
static double textHeightMM( const QFont &font, const QString &text, double multiLineHeight = 1.0 );
%Docstring
Calculate font height in millimeters for a string, including workarounds for QT font
rendering issues. Note that this method uses a non-standard measure of text height,
where only the font ascent is considered for the first line of text.
\param font input font
\param text string to calculate height of
\param multiLineHeight line spacing factor
:return: string height in millimeters
.. versionadded:: 2.12
.. seealso:: textWidthMM
:rtype: float
%End
static void drawText( QPainter *painter, QPointF pos, const QString &text, const QFont &font, const QColor &color = QColor() );
%Docstring
Draws text on a painter at a specific position, taking care of composer specific issues (calculation to pixel,
scaling of font and painter to work around Qt font bugs)
\param painter destination QPainter
\param pos position to draw text
\param text string to draw
\param font font to use for drawing text
\param color color to draw text
.. versionadded:: 2.5
%End
static void drawText( QPainter *painter, const QRectF &rect, const QString &text, const QFont &font, const QColor &color = QColor(), const Qt::AlignmentFlag halignment = Qt::AlignLeft, const Qt::AlignmentFlag valignment = Qt::AlignTop, const int flags = Qt::TextWordWrap );
%Docstring
Draws text on a painter within a rectangle, taking care of composer specific issues (calculation to pixel,
scaling of font and painter to work around Qt font bugs)
\param painter destination QPainter
\param rect rectangle to draw into
\param text string to draw
\param font font to use for drawing text
\param color color to draw text
\param halignment optional horizontal alignment
\param valignment optional vertical alignment
\param flags allows for passing Qt.TextFlags to control appearance of rendered text
.. versionadded:: 2.5
%End
static QgsRenderContext createRenderContextForMap( QgsComposerMap *map, QPainter *painter, double dpi = -1 );
%Docstring
Creates a render context suitable for the specified composer ``map`` and ``painter`` destination.
This method returns a new QgsRenderContext which matches the scale and settings of the
target map. If the ``dpi`` argument is not specified then the dpi will be taken from the destinatation
painter device.
.. versionadded:: 3.0
.. seealso:: createRenderContextForComposition()
:rtype: QgsRenderContext
%End
static QgsRenderContext createRenderContextForComposition( QgsComposition *composition, QPainter *painter );
%Docstring
Creates a render context suitable for the specified ``composition`` and ``painter`` destination.
This method returns a new QgsRenderContext which matches the scale and settings from the composition's
QgsComposition.referenceMap().
.. versionadded:: 3.0
.. seealso:: createRenderContextForMap()
:rtype: QgsRenderContext
%End
};
/************************************************************************
* This file has been generated automatically from *
* *
* src/core/composer/qgscomposerutils.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.pl again *
************************************************************************/