QGLLineMaskGenerator Class Reference

Inheritance diagram for QGLLineMaskGenerator:

Public Functions
	QGLLineMaskGenerator (const QPainterPath &path, const QTransform &matrix, qreal width, QGLOffscreen &offscreen, GLuint maskFragmentProgram)
Public Functions inherited from QGLTrapezoidMaskGenerator
void	drawMask (const QRect &rect)
	QGLTrapezoidMaskGenerator (const QPainterPath &path, const QTransform &matrix, QGLOffscreen &offscreen, GLuint maskFragmentProgram, qreal strokeWidth=-1.0)
QRect	screenRect ()
Public Functions inherited from QGLMaskGenerator
QTransform	matrix () const
QPainterPath	path () const
	QGLMaskGenerator (const QPainterPath &path, const QTransform &matrix, qreal stroke_width=-1)
qreal	strokeWidth () const
virtual	~QGLMaskGenerator ()

Private Functions
QRect	computeScreenRect ()
QVector< QGLTrapezoid >	generateTrapezoids ()

Properties
QPainterPath	transformedPath

Detailed Description

Definition at line 3064 of file qpaintengine_opengl.cpp.

Constructors and Destructors

QGLLineMaskGenerator()

QGLLineMaskGenerator::QGLLineMaskGenerator	(	const QPainterPath &	path,
		const QTransform &	matrix,
		qreal	width,
		QGLOffscreen &	offscreen,
		GLuint	maskFragmentProgram
	)

Definition at line 3210 of file qpaintengine_opengl.cpp.

    : QGLTrapezoidMaskGenerator(path, matrix, offs, program, width)
{
}

Functions

computeScreenRect()

QRect QGLLineMaskGenerator::computeScreenRect ( )

privatevirtual

Implements QGLTrapezoidMaskGenerator.

Definition at line 3222 of file qpaintengine_opengl.cpp.

{
    transformedPath = matrix().map(path());

    return transformedPath.controlPointRect().adjusted(-1, -1, 1, 1).toAlignedRect();
}

generateTrapezoids()

QVector< QGLTrapezoid > QGLLineMaskGenerator::generateTrapezoids ( )

privatevirtual

Implements QGLTrapezoidMaskGenerator.

Definition at line 3229 of file qpaintengine_opengl.cpp.

{
    QOpenGLImmediateModeTessellator tessellator;
    QPointF last;
    for (int i = 0; i < transformedPath.elementCount(); ++i) {
        QPainterPath::Element element = transformedPath.elementAt(i);

        Q_ASSERT(!element.isCurveTo());

        if (element.isLineTo())
            tessellator.tessellateRect(last, element, strokeWidth());

        last = element;
    }

    return tessellator.trapezoids;
}

Properties

transformedPath

QPainterPath QGLLineMaskGenerator::transformedPath

private

Definition at line 3073 of file qpaintengine_opengl.cpp.

Referenced by computeScreenRect(), QGLRectMaskGenerator::computeScreenRect(), generateTrapezoids(), and QGLRectMaskGenerator::generateTrapezoids().

---

The documentation for this class was generated from the following file:

• /src/opengl/qpaintengine_opengl.cpp