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/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/
#include "scpainter.h"
#include "scpattern.h"
#include "util_color.h"
#include "util.h"
#include "util_math.h"
#include <cairo.h>
#include <math.h>
#include <QDebug>
ScPainter::ScPainter( QImage *target, unsigned int w, unsigned int h, double transparency, int blendmode )
{
m_width = w;
m_height= h;
m_stroke = QColor(0,0,0);
strokeMode = 0;
maskMode = 0;
m_fill = QColor(0,0,0);
fill_trans = 1.0;
stroke_trans = 1.0;
m_fillRule = true;
fillMode = 1;
LineWidth = 1.0;
m_offset = 0;
m_layerTransparency = transparency;
m_blendMode = blendmode;
m_blendModeFill = 0;
m_blendModeStroke = 0;
m_array.clear();
mf_underline = false;
mf_strikeout = false;
mf_shadow = false;
mf_outlined = false;
PLineEnd = Qt::FlatCap;
PLineJoin = Qt::MiterJoin;
fill_gradient = VGradient(VGradient::linear);
stroke_gradient = VGradient(VGradient::linear);
setHatchParameters(0, 2, 0, false, QColor(), QColor(), 0.0, 0.0);
m_zoomFactor = 1;
layeredMode = true;
imageMode = true;
svgMode = false;
m_image = target;
m_matrix = QTransform();
zoomStack.clear();
cairo_surface_t *img = cairo_image_surface_create_for_data(m_image->bits(), CAIRO_FORMAT_ARGB32, w, h, w*4);
m_cr = cairo_create(img);
cairo_save( m_cr );
cairo_set_fill_rule (m_cr, CAIRO_FILL_RULE_EVEN_ODD);
cairo_set_operator(m_cr, CAIRO_OPERATOR_OVER);
cairo_set_tolerance( m_cr, 0.5 );
}
ScPainter::~ScPainter()
{
cairo_surface_destroy(cairo_get_target(m_cr));
cairo_destroy( m_cr );
}
void ScPainter::beginLayer(double transparency, int blendmode, FPointArray *clipArray)
{
layerProp la;
la.blendmode = m_blendMode;
la.tranparency = m_layerTransparency;
m_layerTransparency = transparency;
m_blendMode = blendmode;
la.pushed = false;
la.groupClip.resize(0);
la.maskMode = maskMode;
la.mask_patternScaleX = mask_patternScaleX;
la.mask_patternScaleY = mask_patternScaleY;
la.mask_patternOffsetX = mask_patternOffsetX;
la.mask_patternOffsetY = mask_patternOffsetY;
la.mask_patternRotation = mask_patternRotation;
la.mask_patternSkewX = mask_patternSkewX;
la.mask_patternSkewY = mask_patternSkewY;
la.mask_patternMirrorX = mask_patternMirrorX;
la.mask_patternMirrorY = mask_patternMirrorY;
la.mask_gradientScale = mask_gradientScale;
la.mask_gradientSkew = mask_gradientSkew;
la.mask_gradient = mask_gradient;
la.maskPattern = m_maskPattern;
if (clipArray != NULL)
la.groupClip = *clipArray;
la.data = cairo_get_group_target(m_cr);
la.fillRule = m_fillRule;
cairo_push_group(m_cr);
la.pushed = true;
Layers.push(la);
}
void ScPainter::endLayer()
{
layerProp la;
if (Layers.count() == 0)
return;
la = Layers.pop();
maskMode = la.maskMode;
mask_patternScaleX = la.mask_patternScaleX;
mask_patternScaleY = la.mask_patternScaleY;
mask_patternOffsetX = la.mask_patternOffsetX;
mask_patternOffsetY = la.mask_patternOffsetY;
mask_patternRotation = la.mask_patternRotation;
mask_patternSkewX = la.mask_patternSkewX;
mask_patternSkewY = la.mask_patternSkewY;
mask_patternMirrorX = la.mask_patternMirrorX;
mask_patternMirrorY = la.mask_patternMirrorY;
mask_gradientScale = la.mask_gradientScale;
mask_gradientSkew = la.mask_gradientSkew;
mask_gradient = la.mask_gradient;
m_maskPattern = la.maskPattern;
m_fillRule = la.fillRule;
if (la.pushed)
{
cairo_pop_group_to_source (m_cr);
if (la.groupClip.size() != 0)
{
if( m_fillRule )
cairo_set_fill_rule (m_cr, CAIRO_FILL_RULE_EVEN_ODD);
else
cairo_set_fill_rule (m_cr, CAIRO_FILL_RULE_WINDING);
setupPolygon(&la.groupClip);
setClipPath();
}
cairo_set_operator(m_cr, CAIRO_OPERATOR_OVER);
if (maskMode > 0)
{
cairo_pattern_t *patM = getMaskPattern();
setRasterOp(m_blendMode);
cairo_mask(m_cr, patM);
if ((maskMode == 2) || (maskMode == 4) || (maskMode == 5) || (maskMode == 6))
cairo_surface_destroy(imageMask);
cairo_pattern_destroy(patM);
}
else
{
setRasterOp(m_blendMode);
cairo_paint_with_alpha (m_cr, m_layerTransparency);
}
cairo_set_operator(m_cr, CAIRO_OPERATOR_OVER);
}
m_layerTransparency = la.tranparency;
m_blendMode = la.blendmode;
maskMode = 0;
}
void ScPainter::begin()
{
}
void ScPainter::end()
{
if (svgMode)
cairo_show_page (m_cr);
if (layeredMode)
{
cairo_surface_flush(cairo_get_target(m_cr));
cairo_restore( m_cr );
return;
}
}
void ScPainter::clear()
{
if (imageMode)
m_image->fill( qRgba(255, 255, 255, 255) );
}
void ScPainter::clear( const QColor &c )
{
QRgb cs = c.rgb();
if (imageMode)
m_image->fill( qRgba(qRed(cs), qGreen(cs), qBlue(cs), qAlpha(cs)) );
}
const QTransform ScPainter::worldMatrix()
{
cairo_matrix_t matrix;
cairo_get_matrix(m_cr, &matrix);
QTransform mat = QTransform( matrix.xx, matrix.yx, matrix.xy, matrix.yy, matrix.x0, matrix.y0 );
return mat;
}
void ScPainter::setWorldMatrix( const QTransform &mat )
{
cairo_matrix_t matrix;
cairo_matrix_init(&matrix, mat.m11(), mat.m12(), mat.m21(), mat.m22(), mat.dx(), mat.dy());
cairo_set_matrix(m_cr, &matrix);
}
void ScPainter::setAntialiasing(bool enable)
{
if (enable)
cairo_set_antialias(m_cr, CAIRO_ANTIALIAS_DEFAULT);
else
cairo_set_antialias(m_cr, CAIRO_ANTIALIAS_NONE);
}
void ScPainter::setZoomFactor( double zoomFactor )
{
m_zoomFactor = zoomFactor;
cairo_scale (m_cr, m_zoomFactor, m_zoomFactor);
}
void ScPainter::translate( double x, double y )
{
cairo_translate (m_cr, x, y);
}
void ScPainter::translate( const QPointF& offset )
{
cairo_translate (m_cr, offset.x(), offset.y());
}
void ScPainter::rotate( double r )
{
cairo_rotate (m_cr, r * 3.1415927 / 180.0);
}
void ScPainter::scale( double x, double y )
{
cairo_scale (m_cr, x, y);
m_zoomFactor *= qMax(x, y);
}
void ScPainter::moveTo( const double &x, const double &y )
{
cairo_move_to( m_cr, x, y);
}
void
ScPainter::lineTo( const double &x, const double &y )
{
cairo_line_to( m_cr, x, y);
}
void ScPainter::curveTo( FPoint p1, FPoint p2, FPoint p3 )
{
cairo_curve_to(m_cr, p1.x(), p1.y(), p2.x(), p2.y(), p3.x(), p3.y());
}
void ScPainter::newPath()
{
cairo_new_path( m_cr );
}
void ScPainter::closePath()
{
cairo_close_path( m_cr );
}
void ScPainter::setFillRule( bool fillRule )
{
m_fillRule = fillRule;
}
void ScPainter::setFillMode( int fill )
{
fillMode = fill;
}
void ScPainter::setStrokeMode( int stroke )
{
strokeMode = stroke;
}
void ScPainter::setGradient(VGradient::VGradientType mode, FPoint orig, FPoint vec, FPoint foc, double scale, double skew)
{
fill_gradient.setType(mode);
fill_gradient.setOrigin(orig);
fill_gradient.setVector(vec);
fill_gradient.setFocalPoint(foc);
stroke_gradient.setType(mode);
stroke_gradient.setOrigin(orig);
stroke_gradient.setVector(vec);
stroke_gradient.setFocalPoint(foc);
gradientScale = scale;
if (skew == 90)
gradientSkew = 1;
else if (skew == 180)
gradientSkew = 0;
else if (skew == 270)
gradientSkew = -1;
else if (skew == 360)
gradientSkew = 0;
else
gradientSkew = tan(M_PI / 180.0 * skew);
}
void ScPainter::setMaskMode(int mask)
{
maskMode = mask;
}
void ScPainter::setGradientMask(VGradient::VGradientType mode, FPoint orig, FPoint vec, FPoint foc, double scale, double skew)
{
mask_gradient.setType(mode);
mask_gradient.setOrigin(orig);
mask_gradient.setVector(vec);
mask_gradient.setFocalPoint(foc);
mask_gradientScale = scale;
if (skew == 90)
mask_gradientSkew = 1;
else if (skew == 180)
mask_gradientSkew = 0;
else if (skew == 270)
mask_gradientSkew = -1;
else if (skew == 360)
mask_gradientSkew = 0;
else
mask_gradientSkew = tan(M_PI / 180.0 * skew);
}
void ScPainter::setPatternMask(ScPattern *pattern, double scaleX, double scaleY, double offsetX, double offsetY, double rotation, double skewX, double skewY, bool mirrorX, bool mirrorY)
{
m_maskPattern = pattern;
mask_patternScaleX = scaleX / 100.0;
mask_patternScaleY = scaleY / 100.0;
mask_patternOffsetX = offsetX;
mask_patternOffsetY = offsetY;
mask_patternRotation = rotation;
mask_patternSkewX = skewX;
mask_patternSkewY = skewY;
mask_patternMirrorX = mirrorX;
mask_patternMirrorY = mirrorY;
}
void ScPainter::set4ColorGeometry(FPoint p1, FPoint p2, FPoint p3, FPoint p4, FPoint c1, FPoint c2, FPoint c3, FPoint c4)
{
fill_gradient.setType(VGradient::fourcolor);
gradPatchP1 = p1;
gradPatchP2 = p2;
gradPatchP3 = p3;
gradPatchP4 = p4;
gradControlP1 = c1;
gradControlP2 = c2;
gradControlP3 = c3;
gradControlP4 = c4;
}
void ScPainter::set4ColorColors(QColor col1, QColor col2, QColor col3, QColor col4)
{
gradPatchColor1 = col1;
gradPatchColor2 = col2;
gradPatchColor3 = col3;
gradPatchColor4 = col4;
}
void ScPainter::setDiamondGeometry(FPoint p1, FPoint p2, FPoint p3, FPoint p4, FPoint c1, FPoint c2, FPoint c3, FPoint c4, FPoint c5)
{
fill_gradient.setType(VGradient::diamond);
gradPatchP1 = p1;
gradPatchP2 = p2;
gradPatchP3 = p3;
gradPatchP4 = p4;
gradControlP1 = c1;
gradControlP2 = c2;
gradControlP3 = c3;
gradControlP4 = c4;
gradControlP5 = c5;
}
void ScPainter::setMeshGradient(FPoint p1, FPoint p2, FPoint p3, FPoint p4, QList<QList<meshPoint> > meshArray)
{
fill_gradient.setType(VGradient::mesh);
meshGradientArray = meshArray;
gradPatchP1 = p1;
gradPatchP2 = p2;
gradPatchP3 = p3;
gradPatchP4 = p4;
}
void ScPainter::setMeshGradient(FPoint p1, FPoint p2, FPoint p3, FPoint p4, QList<meshGradientPatch> meshPatches)
{
fill_gradient.setType(VGradient::freemesh);
meshGradientPatches = meshPatches;
gradPatchP1 = p1;
gradPatchP2 = p2;
gradPatchP3 = p3;
gradPatchP4 = p4;
}
void ScPainter::setHatchParameters(int mode, double distance, double angle, bool useBackground, QColor background, QColor foreground, double width, double height)
{
hatchType = mode;
hatchDistance = distance;
hatchAngle = angle;
hatchUseBackground = useBackground;
hatchBackground = background;
hatchForeground = foreground;
hatchWidth = width;
hatchHeight = height;
}
void ScPainter::fillPath()
{
if (fillMode != 0)
fillPathHelper();
}
void ScPainter::strokePath()
{
// if( LineWidth == 0 )
// return;
if (strokeMode != 0)
strokePathHelper();
}
QColor ScPainter::pen()
{
return m_stroke;
}
QColor ScPainter::brush()
{
return m_fill;
}
void ScPainter::setPen( const QColor &c )
{
m_stroke = c;
}
void ScPainter::setPen( const QColor &c, double w, Qt::PenStyle st, Qt::PenCapStyle ca, Qt::PenJoinStyle jo )
{
m_stroke = c;
LineWidth = w;
PLineEnd = ca;
PLineJoin = jo;
m_offset = 0;
getDashArray(st, w, m_array);
}
void ScPainter::setLineWidth( double w )
{
LineWidth = w;
}
void ScPainter::setPenOpacity( double op )
{
stroke_trans = op;
}
void ScPainter::setDash(const QVector<double>& array, double ofs)
{
m_array = array;
m_offset = ofs;
}
void ScPainter::setBrush( const QColor &c )
{
m_fill = c;
}
void ScPainter::setBrushOpacity( double op )
{
fill_trans = op;
}
void ScPainter::setOpacity( double op )
{
fill_trans = op;
stroke_trans = op;
}
void ScPainter::setFont( const QFont &f)
{
m_font = f;
}
QFont ScPainter::font()
{
return m_font;
}
void ScPainter::save()
{
cairo_save( m_cr );
zoomStack.push(m_zoomFactor);
}
void ScPainter::restore()
{
cairo_restore( m_cr );
if (!zoomStack.isEmpty())
m_zoomFactor = zoomStack.pop();
}
void ScPainter::setRasterOp(int blendMode)
{
if (blendMode == 0)
cairo_set_operator(m_cr, CAIRO_OPERATOR_OVER);
else if (blendMode == 1)
cairo_set_operator(m_cr, CAIRO_OPERATOR_DARKEN);
else if (blendMode == 2)
cairo_set_operator(m_cr, CAIRO_OPERATOR_LIGHTEN);
else if (blendMode == 3)
cairo_set_operator(m_cr, CAIRO_OPERATOR_MULTIPLY);
else if (blendMode == 4)
cairo_set_operator(m_cr, CAIRO_OPERATOR_SCREEN);
else if (blendMode == 5)
cairo_set_operator(m_cr, CAIRO_OPERATOR_OVERLAY);
else if (blendMode == 6)
cairo_set_operator(m_cr, CAIRO_OPERATOR_HARD_LIGHT);
else if (blendMode == 7)
cairo_set_operator(m_cr, CAIRO_OPERATOR_SOFT_LIGHT);
else if (blendMode == 8)
cairo_set_operator(m_cr, CAIRO_OPERATOR_DIFFERENCE);
else if (blendMode == 9)
cairo_set_operator(m_cr, CAIRO_OPERATOR_EXCLUSION);
else if (blendMode == 10)
cairo_set_operator(m_cr, CAIRO_OPERATOR_COLOR_DODGE);
else if (blendMode == 11)
cairo_set_operator(m_cr, CAIRO_OPERATOR_COLOR_BURN);
else if (blendMode == 12)
cairo_set_operator(m_cr, CAIRO_OPERATOR_HSL_HUE);
else if (blendMode == 13)
cairo_set_operator(m_cr, CAIRO_OPERATOR_HSL_SATURATION);
else if (blendMode == 14)
cairo_set_operator(m_cr, CAIRO_OPERATOR_HSL_COLOR);
else if (blendMode == 15)
cairo_set_operator(m_cr, CAIRO_OPERATOR_HSL_LUMINOSITY);
else if (blendMode == 16)
cairo_set_operator(m_cr, CAIRO_OPERATOR_ADD);
else if (blendMode == 17)
cairo_set_operator(m_cr, CAIRO_OPERATOR_DEST_IN);
else if (blendMode == 18)
cairo_set_operator(m_cr, CAIRO_OPERATOR_DEST_OUT);
else if (blendMode == 19)
cairo_set_operator(m_cr, CAIRO_OPERATOR_CLEAR);
else
cairo_set_operator(m_cr, CAIRO_OPERATOR_OVER);
}
void ScPainter::setBlendModeFill( int blendMode )
{
m_blendModeFill = blendMode;
}
void ScPainter::setBlendModeStroke( int blendMode )
{
m_blendModeStroke = blendMode;
}
void ScPainter::setPattern(ScPattern *pattern, double scaleX, double scaleY, double offsetX, double offsetY, double rotation, double skewX, double skewY, bool mirrorX, bool mirrorY)
{
m_pattern = pattern;
patternScaleX = scaleX / 100.0;
patternScaleY = scaleY / 100.0;
patternOffsetX = offsetX;
patternOffsetY = offsetY;
patternRotation = rotation;
patternSkewX = skewX;
patternSkewY = skewY;
patternMirrorX = mirrorX;
patternMirrorY = mirrorY;
}
cairo_pattern_t * ScPainter::getMaskPattern()
{
cairo_save( m_cr );
cairo_pattern_t *pat;
if ((maskMode == 1) || (maskMode == 3))
{
double x1 = mask_gradient.origin().x();
double y1 = mask_gradient.origin().y();
double x2 = mask_gradient.vector().x();
double y2 = mask_gradient.vector().y();
double fx = mask_gradient.focalPoint().x();
double fy = mask_gradient.focalPoint().y();
if (mask_gradient.type() == VGradient::linear)
pat = cairo_pattern_create_linear (x1, y1, x2, y2);
else
pat = cairo_pattern_create_radial (fx, fy, 0, x1, y1, sqrt(pow(x2 - x1, 2) + pow(y2 - y1,2)));
QList<VColorStop*> colorStops = mask_gradient.colorStops();
QColor qStopColor;
for( int offset = 0 ; offset < colorStops.count() ; offset++ )
{
qStopColor = colorStops[ offset ]->color;
double a = colorStops[offset]->opacity;
double r, g, b;
qStopColor.getRgbF(&r, &g, &b);
if (maskMode == 3)
a = /* 1.0 - */(0.3 * r + 0.59 * g + 0.11 * b);
cairo_pattern_add_color_stop_rgba (pat, colorStops[ offset ]->rampPoint, r, g, b, a);
}
cairo_matrix_t matrix;
QTransform qmatrix;
if (mask_gradient.type() == VGradient::radial)
{
double rotEnd = xy2Deg(x2 - x1, y2 - y1);
qmatrix.translate(x1, y1);
qmatrix.rotate(rotEnd);
qmatrix.shear(mask_gradientSkew, 0);
qmatrix.translate(0, y1 * (1.0 - mask_gradientScale));
qmatrix.translate(-x1, -y1);
qmatrix.scale(1, mask_gradientScale);
}
else
{
qmatrix.translate(x1, y1);
qmatrix.shear(-mask_gradientSkew, 0);
qmatrix.translate(-x1, -y1);
}
cairo_matrix_init(&matrix, qmatrix.m11(), qmatrix.m12(), qmatrix.m21(), qmatrix.m22(), qmatrix.dx(), qmatrix.dy());
cairo_matrix_invert(&matrix);
cairo_pattern_set_matrix (pat, &matrix);
}
else
{
if ((maskMode == 4) || (maskMode == 5))
{
imageQ = m_maskPattern->pattern.copy();
if (maskMode == 5)
imageQ.invertPixels();
int h = imageQ.height();
int w = imageQ.width();
int k;
QRgb *s;
QRgb r;
for( int yi=0; yi < h; ++yi )
{
s = (QRgb*)(imageQ.scanLine( yi ));
for( int xi=0; xi < w; ++xi )
{
r = *s;
if (qAlpha(r) == 0)
k = 0; // 255;
else
k = qMin(qRound(0.3 * qRed(r) + 0.59 * qGreen(r) + 0.11 * qBlue(r)), 255);
*s = qRgba(qRed(r), qGreen(r), qBlue(r), /* 255 - */ k);
s++;
}
}
imageMask = cairo_image_surface_create_for_data ((uchar*)imageQ.bits(), CAIRO_FORMAT_ARGB32, w, h, w*4);
}
else
{
imageQ = m_maskPattern->pattern.copy();
if (maskMode == 6)
imageQ.invertPixels(QImage::InvertRgba);
imageMask = cairo_image_surface_create_for_data ((uchar*)imageQ.bits(), CAIRO_FORMAT_ARGB32, m_maskPattern->getPattern()->width(), m_maskPattern->getPattern()->height(), m_maskPattern->getPattern()->width()*4);
}
pat = cairo_pattern_create_for_surface(imageMask);
cairo_pattern_set_extend(pat, CAIRO_EXTEND_REPEAT);
cairo_pattern_set_filter(pat, CAIRO_FILTER_GOOD);
cairo_matrix_t matrix;
QTransform qmatrix;
qmatrix.translate(mask_patternOffsetX, mask_patternOffsetY);
qmatrix.rotate(mask_patternRotation);
qmatrix.shear(-mask_patternSkewX, mask_patternSkewY);
qmatrix.scale(mask_patternScaleX, mask_patternScaleY);
qmatrix.scale(m_maskPattern->width / static_cast<double>(m_maskPattern->getPattern()->width()), m_maskPattern->height / static_cast<double>(m_maskPattern->getPattern()->height()));
if (mask_patternMirrorX)
qmatrix.scale(-1, 1);
if (mask_patternMirrorY)
qmatrix.scale(1, -1);
cairo_matrix_init(&matrix, qmatrix.m11(), qmatrix.m12(), qmatrix.m21(), qmatrix.m22(), qmatrix.dx(), qmatrix.dy());
cairo_matrix_invert(&matrix);
cairo_pattern_set_matrix (pat, &matrix);
}
cairo_restore( m_cr );
return pat;
}
void ScPainter::fillPathHelper()
{
cairo_save( m_cr );
cairo_set_operator(m_cr, CAIRO_OPERATOR_OVER);
if( m_fillRule )
cairo_set_fill_rule (m_cr, CAIRO_FILL_RULE_EVEN_ODD);
else
cairo_set_fill_rule (m_cr, CAIRO_FILL_RULE_WINDING);
if (fillMode == 1)
{
double r, g, b;
m_fill.getRgbF(&r, &g, &b);
if (maskMode > 0)
{
cairo_pattern_t *pat = getMaskPattern();
cairo_set_source_rgb( m_cr, r, g, b );
setRasterOp(m_blendModeFill);
cairo_clip_preserve(m_cr);
cairo_mask(m_cr, pat);
if ((maskMode == 2) || (maskMode == 4) || (maskMode == 5) || (maskMode == 6))
cairo_surface_destroy(imageMask);
cairo_pattern_destroy(pat);
}
else
{
cairo_set_source_rgba( m_cr, r, g, b, fill_trans );
setRasterOp(m_blendModeFill);
cairo_fill_preserve(m_cr);
}
}
else if (fillMode == 2)
{
cairo_pattern_t *pat = NULL;
cairo_surface_t *img = NULL;
cairo_t *cr = NULL;
#if (CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 2))
cairo_pattern_t *mpat = NULL;
#endif
if (fill_gradient.type() == VGradient::fourcolor)
{
#if (CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 2))
double p1x = gradPatchP1.x();
double p1y = gradPatchP1.y();
double p2x = gradPatchP2.x();
double p2y = gradPatchP2.y();
double p3x = gradPatchP3.x();
double p3y = gradPatchP3.y();
double p4x = gradPatchP4.x();
double p4y = gradPatchP4.y();
img = cairo_surface_create_similar(cairo_get_target(m_cr), CAIRO_CONTENT_COLOR_ALPHA, p3x, p3y);
cr = cairo_create(img);
cairo_set_fill_rule(cr, CAIRO_FILL_RULE_EVEN_ODD);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_tolerance(cr, 0.5 );
double r, g, b, a;
mpat = cairo_pattern_create_mesh();
#if (CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 4))
cairo_mesh_pattern_begin_patch(mpat);
cairo_mesh_pattern_move_to(mpat, p1x, p1y);
cairo_mesh_pattern_line_to(mpat, p2x, p2y);
cairo_mesh_pattern_line_to(mpat, p3x, p3y);
cairo_mesh_pattern_line_to(mpat, p4x, p4y);
cairo_mesh_pattern_line_to(mpat, p1x, p1y);
cairo_mesh_pattern_set_control_point(mpat, 0, gradControlP1.x(), gradControlP1.y());
cairo_mesh_pattern_set_control_point(mpat, 1, gradControlP2.x(), gradControlP2.y());
cairo_mesh_pattern_set_control_point(mpat, 2, gradControlP3.x(), gradControlP3.y());
cairo_mesh_pattern_set_control_point(mpat, 3, gradControlP4.x(), gradControlP4.y());
gradPatchColor1.getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 0, r, g, b, a);
gradPatchColor2.getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 1, r, g, b, a);
gradPatchColor3.getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 2, r, g, b, a);
gradPatchColor4.getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 3, r, g, b, a);
cairo_mesh_pattern_end_patch(mpat);
#else
cairo_pattern_mesh_begin_patch(mpat);
cairo_pattern_mesh_move_to(mpat, p1x, p1y);
cairo_pattern_mesh_line_to(mpat, p2x, p2y);
cairo_pattern_mesh_line_to(mpat, p3x, p3y);
cairo_pattern_mesh_line_to(mpat, p4x, p4y);
cairo_pattern_mesh_line_to(mpat, p1x, p1y);
cairo_pattern_mesh_set_control_point(mpat, 0, gradControlP1.x(), gradControlP1.y());
cairo_pattern_mesh_set_control_point(mpat, 1, gradControlP2.x(), gradControlP2.y());
cairo_pattern_mesh_set_control_point(mpat, 2, gradControlP3.x(), gradControlP3.y());
cairo_pattern_mesh_set_control_point(mpat, 3, gradControlP4.x(), gradControlP4.y());
gradPatchColor1.getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 0, r, g, b, a);
gradPatchColor2.getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 1, r, g, b, a);
gradPatchColor3.getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 2, r, g, b, a);
gradPatchColor4.getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 3, r, g, b, a);
cairo_pattern_mesh_end_patch(mpat);
#endif
cairo_pattern_set_filter(mpat, CAIRO_FILTER_GOOD);
cairo_set_source(cr, mpat);
cairo_paint_with_alpha(cr, 1.0);
pat = cairo_pattern_create_for_surface(img);
cairo_pattern_set_extend(pat, CAIRO_EXTEND_NONE);
cairo_pattern_set_filter(pat, CAIRO_FILTER_GOOD);
#else
double r, g, b, a;
double acr = 0.0;
double acg = 0.0;
double acb = 0.0;
double aca = 0.0;
gradPatchColor1.getRgbF(&r, &g, &b, &a);
acr += r;
acg += g;
acb += b;
aca += a;
gradPatchColor2.getRgbF(&r, &g, &b, &a);
acr += r;
acg += g;
acb += b;
aca += a;
gradPatchColor3.getRgbF(&r, &g, &b, &a);
acr += r;
acg += g;
acb += b;
aca += a;
gradPatchColor4.getRgbF(&r, &g, &b, &a);
acr += r;
acg += g;
acb += b;
aca += a;
pat = cairo_pattern_create_rgba(acr / 4.0, acg / 4.0, acb / 4.0, aca / 4.0);
#endif
}
else if (fill_gradient.type() == VGradient::diamond)
{
#if (CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 2))
double p1x = gradControlP1.x();
double p1y = gradControlP1.y();
double p2x = gradControlP2.x();
double p2y = gradControlP2.y();
double p3x = gradControlP3.x();
double p3y = gradControlP3.y();
double p4x = gradControlP4.x();
double p4y = gradControlP4.y();
img = cairo_surface_create_similar(cairo_get_target(m_cr), CAIRO_CONTENT_COLOR_ALPHA, gradPatchP3.x(), gradPatchP3.y());
cr = cairo_create(img);
cairo_set_fill_rule(cr, CAIRO_FILL_RULE_EVEN_ODD);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_tolerance(cr, 0.5 );
double r, g, b, a;
QList<VColorStop*> colorStops = fill_gradient.colorStops();
QList<QColor> qStopColors;
QColor qStopColor;
for( int offset = 0 ; offset < colorStops.count() ; offset++ )
{
qStopColor = colorStops[ offset ]->color;
qStopColor.setAlphaF(colorStops[offset]->opacity);
qStopColors.append(qStopColor);
}
qStopColors.last().getRgbF(&r, &g, &b, &a);
QPointF centerP = QPointF(gradControlP5.x(), gradControlP5.y());
QLineF edge1 = QLineF(centerP, QPointF(p1x, p1y));
QLineF edge2 = QLineF(centerP, QPointF(p2x, p2y));
QLineF edge3 = QLineF(centerP, QPointF(p3x, p3y));
QLineF edge4 = QLineF(centerP, QPointF(p4x, p4y));
QPointF p1 = edge1.pointAt(colorStops.last()->rampPoint);
QPointF p2 = edge2.pointAt(colorStops.last()->rampPoint);
QPointF p3 = edge3.pointAt(colorStops.last()->rampPoint);
QPointF p4 = edge4.pointAt(colorStops.last()->rampPoint);
cairo_set_source_rgba(cr, r, g, b, a);
cairo_paint_with_alpha(cr, 1.0);
cairo_set_operator(cr, CAIRO_OPERATOR_DEST_OUT);
cairo_new_path(cr);
cairo_move_to(cr, p1.x(), p1.y());
cairo_line_to(cr, p2.x(), p2.y());
cairo_line_to(cr, p3.x(), p3.y());
cairo_line_to(cr, p4.x(), p4.y());
cairo_close_path(cr);
cairo_set_source_rgba(cr, 0, 0, 0, 1);
cairo_fill(cr);
cairo_set_operator(cr, CAIRO_OPERATOR_ADD);
mpat = cairo_pattern_create_mesh();
for( int offset = 1 ; offset < colorStops.count() ; offset++ )
{
QLineF e1 = edge1;
QLineF e1s = edge1;
QLineF e2 = edge2;
QLineF e2s = edge2;
QLineF e3 = edge3;
QLineF e3s = edge3;
QLineF e4 = edge4;
QLineF e4s = edge4;
e1.setLength(edge1.length() * colorStops[ offset ]->rampPoint);
e2.setLength(edge2.length() * colorStops[ offset ]->rampPoint);
e3.setLength(edge3.length() * colorStops[ offset ]->rampPoint);
e4.setLength(edge4.length() * colorStops[ offset ]->rampPoint);
e1s.setLength(edge1.length() * colorStops[ offset - 1 ]->rampPoint);
e2s.setLength(edge2.length() * colorStops[ offset - 1 ]->rampPoint);
e3s.setLength(edge3.length() * colorStops[ offset - 1 ]->rampPoint);
e4s.setLength(edge4.length() * colorStops[ offset - 1 ]->rampPoint);
if (offset == 1)
{
#if (CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 4))
cairo_mesh_pattern_begin_patch(mpat);
cairo_mesh_pattern_move_to(mpat, centerP.x(), centerP.y());
cairo_mesh_pattern_line_to(mpat, e1.x2(), e1.y2());
cairo_mesh_pattern_line_to(mpat, e2.x2(), e2.y2());
#else
cairo_pattern_mesh_begin_patch(mpat);
cairo_pattern_mesh_move_to(mpat, centerP.x(), centerP.y());
cairo_pattern_mesh_line_to(mpat, e1.x2(), e1.y2());
cairo_pattern_mesh_line_to(mpat, e2.x2(), e2.y2());
#endif
#ifdef HAVE_PRIVATE_CAIRO
cairo_pattern_mesh_line_to(mpat, centerP.x(), centerP.y());
#endif
qStopColors[0].getRgbF(&r, &g, &b, &a);
#if (CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 4))
cairo_mesh_pattern_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[1].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 2, r, g, b, a);
cairo_mesh_pattern_end_patch(mpat);
cairo_mesh_pattern_begin_patch(mpat);
cairo_mesh_pattern_move_to(mpat, centerP.x(), centerP.y());
cairo_mesh_pattern_line_to(mpat, e2.x2(), e2.y2());
cairo_mesh_pattern_line_to(mpat, e3.x2(), e3.y2());
#else
cairo_pattern_mesh_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[1].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 2, r, g, b, a);
cairo_pattern_mesh_end_patch(mpat);
cairo_pattern_mesh_begin_patch(mpat);
cairo_pattern_mesh_move_to(mpat, centerP.x(), centerP.y());
cairo_pattern_mesh_line_to(mpat, e2.x2(), e2.y2());
cairo_pattern_mesh_line_to(mpat, e3.x2(), e3.y2());
#endif
#ifdef HAVE_PRIVATE_CAIRO
cairo_pattern_mesh_line_to(mpat, centerP.x(), centerP.y());
#endif
qStopColors[0].getRgbF(&r, &g, &b, &a);
#if (CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 4))
cairo_mesh_pattern_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[1].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 2, r, g, b, a);
cairo_mesh_pattern_end_patch(mpat);
cairo_mesh_pattern_begin_patch(mpat);
cairo_mesh_pattern_move_to(mpat, centerP.x(), centerP.y());
cairo_mesh_pattern_line_to(mpat, e3.x2(), e3.y2());
cairo_mesh_pattern_line_to(mpat, e4.x2(), e4.y2());
#else
cairo_pattern_mesh_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[1].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 2, r, g, b, a);
cairo_pattern_mesh_end_patch(mpat);
cairo_pattern_mesh_begin_patch(mpat);
cairo_pattern_mesh_move_to(mpat, centerP.x(), centerP.y());
cairo_pattern_mesh_line_to(mpat, e3.x2(), e3.y2());
cairo_pattern_mesh_line_to(mpat, e4.x2(), e4.y2());
#endif
#ifdef HAVE_PRIVATE_CAIRO
cairo_pattern_mesh_line_to(mpat, centerP.x(), centerP.y());
#endif
qStopColors[0].getRgbF(&r, &g, &b, &a);
#if (CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 4))
cairo_mesh_pattern_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[1].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 2, r, g, b, a);
cairo_mesh_pattern_end_patch(mpat);
cairo_mesh_pattern_begin_patch(mpat);
cairo_mesh_pattern_move_to(mpat, centerP.x(), centerP.y());
cairo_mesh_pattern_line_to(mpat, e4.x2(), e4.y2());
cairo_mesh_pattern_line_to(mpat, e1.x2(), e1.y2());
#else
cairo_pattern_mesh_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[1].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 2, r, g, b, a);
cairo_pattern_mesh_end_patch(mpat);
cairo_pattern_mesh_begin_patch(mpat);
cairo_pattern_mesh_move_to(mpat, centerP.x(), centerP.y());
cairo_pattern_mesh_line_to(mpat, e4.x2(), e4.y2());
cairo_pattern_mesh_line_to(mpat, e1.x2(), e1.y2());
#endif
#ifdef HAVE_PRIVATE_CAIRO
cairo_pattern_mesh_line_to(mpat, centerP.x(), centerP.y());
#endif
qStopColors[0].getRgbF(&r, &g, &b, &a);
#if (CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 4))
cairo_mesh_pattern_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[1].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 2, r, g, b, a);
cairo_mesh_pattern_end_patch(mpat);
#else
cairo_pattern_mesh_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[1].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 2, r, g, b, a);
cairo_pattern_mesh_end_patch(mpat);
#endif
}
else
{
#if (CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 4))
cairo_mesh_pattern_begin_patch(mpat);
cairo_mesh_pattern_move_to(mpat, e1s.x2(), e1s.y2());
cairo_mesh_pattern_line_to(mpat, e1.x2(), e1.y2());
cairo_mesh_pattern_line_to(mpat, e2.x2(), e2.y2());
cairo_mesh_pattern_line_to(mpat, e2s.x2(), e2s.y2());
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[offset].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 2, r, g, b, a);
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 3, r, g, b, a);
cairo_mesh_pattern_end_patch(mpat);
cairo_mesh_pattern_begin_patch(mpat);
cairo_mesh_pattern_move_to(mpat, e2s.x2(), e2s.y2());
cairo_mesh_pattern_line_to(mpat, e2.x2(), e2.y2());
cairo_mesh_pattern_line_to(mpat, e3.x2(), e3.y2());
cairo_mesh_pattern_line_to(mpat, e3s.x2(), e3s.y2());
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[offset].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 2, r, g, b, a);
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 3, r, g, b, a);
cairo_mesh_pattern_end_patch(mpat);
cairo_mesh_pattern_begin_patch(mpat);
cairo_mesh_pattern_move_to(mpat, e3s.x2(), e3s.y2());
cairo_mesh_pattern_line_to(mpat, e3.x2(), e3.y2());
cairo_mesh_pattern_line_to(mpat, e4.x2(), e4.y2());
cairo_mesh_pattern_line_to(mpat, e4s.x2(), e4s.y2());
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[offset].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 2, r, g, b, a);
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 3, r, g, b, a);
cairo_mesh_pattern_end_patch(mpat);
cairo_mesh_pattern_begin_patch(mpat);
cairo_mesh_pattern_move_to(mpat, e4s.x2(), e4s.y2());
cairo_mesh_pattern_line_to(mpat, e4.x2(), e4.y2());
cairo_mesh_pattern_line_to(mpat, e1.x2(), e1.y2());
cairo_mesh_pattern_line_to(mpat, e1s.x2(), e1s.y2());
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[offset].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 2, r, g, b, a);
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 3, r, g, b, a);
cairo_mesh_pattern_end_patch(mpat);
#else
cairo_pattern_mesh_begin_patch(mpat);
cairo_pattern_mesh_move_to(mpat, e1s.x2(), e1s.y2());
cairo_pattern_mesh_line_to(mpat, e1.x2(), e1.y2());
cairo_pattern_mesh_line_to(mpat, e2.x2(), e2.y2());
cairo_pattern_mesh_line_to(mpat, e2s.x2(), e2s.y2());
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[offset].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 2, r, g, b, a);
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 3, r, g, b, a);
cairo_pattern_mesh_end_patch(mpat);
cairo_pattern_mesh_begin_patch(mpat);
cairo_pattern_mesh_move_to(mpat, e2s.x2(), e2s.y2());
cairo_pattern_mesh_line_to(mpat, e2.x2(), e2.y2());
cairo_pattern_mesh_line_to(mpat, e3.x2(), e3.y2());
cairo_pattern_mesh_line_to(mpat, e3s.x2(), e3s.y2());
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[offset].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 2, r, g, b, a);
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 3, r, g, b, a);
cairo_pattern_mesh_end_patch(mpat);
cairo_pattern_mesh_begin_patch(mpat);
cairo_pattern_mesh_move_to(mpat, e3s.x2(), e3s.y2());
cairo_pattern_mesh_line_to(mpat, e3.x2(), e3.y2());
cairo_pattern_mesh_line_to(mpat, e4.x2(), e4.y2());
cairo_pattern_mesh_line_to(mpat, e4s.x2(), e4s.y2());
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[offset].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 2, r, g, b, a);
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 3, r, g, b, a);
cairo_pattern_mesh_end_patch(mpat);
cairo_pattern_mesh_begin_patch(mpat);
cairo_pattern_mesh_move_to(mpat, e4s.x2(), e4s.y2());
cairo_pattern_mesh_line_to(mpat, e4.x2(), e4.y2());
cairo_pattern_mesh_line_to(mpat, e1.x2(), e1.y2());
cairo_pattern_mesh_line_to(mpat, e1s.x2(), e1s.y2());
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 0, r, g, b, a);
qStopColors[offset].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 1, r, g, b, a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 2, r, g, b, a);
qStopColors[offset-1].getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 3, r, g, b, a);
cairo_pattern_mesh_end_patch(mpat);
#endif
}
}
cairo_pattern_set_filter(mpat, CAIRO_FILTER_GOOD);
cairo_set_source(cr, mpat);
cairo_paint_with_alpha(cr, 1.0);
pat = cairo_pattern_create_for_surface(img);
cairo_pattern_set_extend(pat, CAIRO_EXTEND_PAD);
cairo_pattern_set_filter(pat, CAIRO_FILTER_GOOD);
#else
double r, g, b;
m_fill.getRgbF(&r, &g, &b);
pat = cairo_pattern_create_rgba(r, g, b, 1.0);
#endif
}
else if (fill_gradient.type() == VGradient::mesh)
{
#if (CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 2))
double p3x = gradPatchP3.x();
double p3y = gradPatchP3.y();
img = cairo_surface_create_similar(cairo_get_target(m_cr), CAIRO_CONTENT_COLOR_ALPHA, p3x, p3y);
cr = cairo_create(img);
cairo_set_fill_rule(cr, CAIRO_FILL_RULE_EVEN_ODD);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_tolerance(cr, 0.5 );
double r, g, b, a;
mpat = cairo_pattern_create_mesh();
for (int grow = 0; grow < meshGradientArray.count()-1; grow++)
{
for (int gcol = 0; gcol < meshGradientArray[grow].count()-1; gcol++)
{
meshPoint mp1 = meshGradientArray[grow][gcol];
meshPoint mp2 = meshGradientArray[grow][gcol+1];
meshPoint mp3 = meshGradientArray[grow+1][gcol+1];
meshPoint mp4 = meshGradientArray[grow+1][gcol];
#if (CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 4))
cairo_mesh_pattern_begin_patch(mpat);
cairo_mesh_pattern_move_to(mpat, mp1.gridPoint.x(), mp1.gridPoint.y());
cairo_mesh_pattern_curve_to(mpat, mp1.controlRight.x(), mp1.controlRight.y(), mp2.controlLeft.x(), mp2.controlLeft.y(), mp2.gridPoint.x(), mp2.gridPoint.y());
cairo_mesh_pattern_curve_to(mpat, mp2.controlBottom.x(), mp2.controlBottom.y(), mp3.controlTop.x(), mp3.controlTop.y(), mp3.gridPoint.x(), mp3.gridPoint.y());
cairo_mesh_pattern_curve_to(mpat, mp3.controlLeft.x(), mp3.controlLeft.y(), mp4.controlRight.x(), mp4.controlRight.y(), mp4.gridPoint.x(), mp4.gridPoint.y());
cairo_mesh_pattern_curve_to(mpat, mp4.controlTop.x(), mp4.controlTop.y(), mp1.controlBottom.x(), mp1.controlBottom.y(), mp1.gridPoint.x(), mp1.gridPoint.y());
cairo_mesh_pattern_set_control_point(mpat, 0, mp1.controlColor.x(), mp1.controlColor.y());
cairo_mesh_pattern_set_control_point(mpat, 1, mp2.controlColor.x(), mp2.controlColor.y());
cairo_mesh_pattern_set_control_point(mpat, 2, mp3.controlColor.x(), mp3.controlColor.y());
cairo_mesh_pattern_set_control_point(mpat, 3, mp4.controlColor.x(), mp4.controlColor.y());
mp1.color.getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 0, r, g, b, a);
mp2.color.getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 1, r, g, b, a);
mp3.color.getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 2, r, g, b, a);
mp4.color.getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 3, r, g, b, a);
cairo_mesh_pattern_end_patch(mpat);
#else
cairo_pattern_mesh_begin_patch(mpat);
cairo_pattern_mesh_move_to(mpat, mp1.gridPoint.x(), mp1.gridPoint.y());
cairo_pattern_mesh_curve_to(mpat, mp1.controlRight.x(), mp1.controlRight.y(), mp2.controlLeft.x(), mp2.controlLeft.y(), mp2.gridPoint.x(), mp2.gridPoint.y());
cairo_pattern_mesh_curve_to(mpat, mp2.controlBottom.x(), mp2.controlBottom.y(), mp3.controlTop.x(), mp3.controlTop.y(), mp3.gridPoint.x(), mp3.gridPoint.y());
cairo_pattern_mesh_curve_to(mpat, mp3.controlLeft.x(), mp3.controlLeft.y(), mp4.controlRight.x(), mp4.controlRight.y(), mp4.gridPoint.x(), mp4.gridPoint.y());
cairo_pattern_mesh_curve_to(mpat, mp4.controlTop.x(), mp4.controlTop.y(), mp1.controlBottom.x(), mp1.controlBottom.y(), mp1.gridPoint.x(), mp1.gridPoint.y());
cairo_pattern_mesh_set_control_point(mpat, 0, mp1.controlColor.x(), mp1.controlColor.y());
cairo_pattern_mesh_set_control_point(mpat, 1, mp2.controlColor.x(), mp2.controlColor.y());
cairo_pattern_mesh_set_control_point(mpat, 2, mp3.controlColor.x(), mp3.controlColor.y());
cairo_pattern_mesh_set_control_point(mpat, 3, mp4.controlColor.x(), mp4.controlColor.y());
mp1.color.getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 0, r, g, b, a);
mp2.color.getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 1, r, g, b, a);
mp3.color.getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 2, r, g, b, a);
mp4.color.getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 3, r, g, b, a);
cairo_pattern_mesh_end_patch(mpat);
#endif
}
}
cairo_pattern_set_filter(mpat, CAIRO_FILTER_BEST);
cairo_set_source(cr, mpat);
cairo_paint_with_alpha(cr, 1.0);
pat = cairo_pattern_create_for_surface(img);
cairo_pattern_set_extend(pat, CAIRO_EXTEND_NONE);
cairo_pattern_set_filter(pat, CAIRO_FILTER_BEST);
#else
double p3x = gradPatchP3.x();
double p3y = gradPatchP3.y();
img = cairo_surface_create_similar(cairo_get_target(m_cr), CAIRO_CONTENT_COLOR_ALPHA, p3x, p3y);
cr = cairo_create(img);
cairo_set_fill_rule(cr, CAIRO_FILL_RULE_EVEN_ODD);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_tolerance(cr, 0.5 );
double r, g, b, a;
for (int grow = 0; grow < meshGradientArray.count()-1; grow++)
{
for (int gcol = 0; gcol < meshGradientArray[grow].count()-1; gcol++)
{
meshPoint mp1 = meshGradientArray[grow][gcol];
meshPoint mp2 = meshGradientArray[grow][gcol+1];
meshPoint mp3 = meshGradientArray[grow+1][gcol+1];
meshPoint mp4 = meshGradientArray[grow+1][gcol];
cairo_new_path( cr );
cairo_move_to(cr, mp1.gridPoint.x(), mp1.gridPoint.y());
cairo_curve_to(cr, mp1.controlRight.x(), mp1.controlRight.y(), mp2.controlLeft.x(), mp2.controlLeft.y(), mp2.gridPoint.x(), mp2.gridPoint.y());
cairo_curve_to(cr, mp2.controlBottom.x(), mp2.controlBottom.y(), mp3.controlTop.x(), mp3.controlTop.y(), mp3.gridPoint.x(), mp3.gridPoint.y());
cairo_curve_to(cr, mp3.controlLeft.x(), mp3.controlLeft.y(), mp4.controlRight.x(), mp4.controlRight.y(), mp4.gridPoint.x(), mp4.gridPoint.y());
cairo_curve_to(cr, mp4.controlTop.x(), mp4.controlTop.y(), mp1.controlBottom.x(), mp1.controlBottom.y(), mp1.gridPoint.x(), mp1.gridPoint.y());
cairo_close_path( cr );
double acr = 0.0;
double acg = 0.0;
double acb = 0.0;
double aca = 0.0;
mp1.color.getRgbF(&r, &g, &b, &a);
acr += r;
acg += g;
acb += b;
aca += a;
mp2.color.getRgbF(&r, &g, &b, &a);
acr += r;
acg += g;
acb += b;
aca += a;
mp3.color.getRgbF(&r, &g, &b, &a);
acr += r;
acg += g;
acb += b;
aca += a;
mp4.color.getRgbF(&r, &g, &b, &a);
acr += r;
acg += g;
acb += b;
aca += a;
cairo_set_source_rgba(cr, acr / 4.0, acg / 4.0, acb / 4.0, aca / 4.0);
cairo_fill(cr);
}
}
pat = cairo_pattern_create_for_surface(img);
cairo_pattern_set_extend(pat, CAIRO_EXTEND_NONE);
cairo_pattern_set_filter(pat, CAIRO_FILTER_BEST);
#endif
}
else if (fill_gradient.type() == VGradient::freemesh)
{
#if (CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 2))
double p3x = gradPatchP3.x();
double p3y = gradPatchP3.y();
img = cairo_surface_create_similar(cairo_get_target(m_cr), CAIRO_CONTENT_COLOR_ALPHA, p3x, p3y);
cr = cairo_create(img);
cairo_set_fill_rule(cr, CAIRO_FILL_RULE_EVEN_ODD);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_tolerance(cr, 0.5 );
double r, g, b, a;
mpat = cairo_pattern_create_mesh();
for (int col = 0; col < meshGradientPatches.count(); col++)
{
meshGradientPatch patch = meshGradientPatches[col];
meshPoint mp1 = patch.TL;
meshPoint mp2 = patch.TR;
meshPoint mp3 = patch.BR;
meshPoint mp4 = patch.BL;
#if (CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 4))
cairo_mesh_pattern_begin_patch(mpat);
cairo_mesh_pattern_move_to(mpat, mp1.gridPoint.x(), mp1.gridPoint.y());
cairo_mesh_pattern_curve_to(mpat, mp1.controlRight.x(), mp1.controlRight.y(), mp2.controlLeft.x(), mp2.controlLeft.y(), mp2.gridPoint.x(), mp2.gridPoint.y());
cairo_mesh_pattern_curve_to(mpat, mp2.controlBottom.x(), mp2.controlBottom.y(), mp3.controlTop.x(), mp3.controlTop.y(), mp3.gridPoint.x(), mp3.gridPoint.y());
cairo_mesh_pattern_curve_to(mpat, mp3.controlLeft.x(), mp3.controlLeft.y(), mp4.controlRight.x(), mp4.controlRight.y(), mp4.gridPoint.x(), mp4.gridPoint.y());
cairo_mesh_pattern_curve_to(mpat, mp4.controlTop.x(), mp4.controlTop.y(), mp1.controlBottom.x(), mp1.controlBottom.y(), mp1.gridPoint.x(), mp1.gridPoint.y());
cairo_mesh_pattern_set_control_point(mpat, 0, mp1.controlColor.x(), mp1.controlColor.y());
cairo_mesh_pattern_set_control_point(mpat, 1, mp2.controlColor.x(), mp2.controlColor.y());
cairo_mesh_pattern_set_control_point(mpat, 2, mp3.controlColor.x(), mp3.controlColor.y());
cairo_mesh_pattern_set_control_point(mpat, 3, mp4.controlColor.x(), mp4.controlColor.y());
mp1.color.getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 0, r, g, b, a);
mp2.color.getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 1, r, g, b, a);
mp3.color.getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 2, r, g, b, a);
mp4.color.getRgbF(&r, &g, &b, &a);
cairo_mesh_pattern_set_corner_color_rgba(mpat, 3, r, g, b, a);
cairo_mesh_pattern_end_patch(mpat);
#else
cairo_pattern_mesh_begin_patch(mpat);
cairo_pattern_mesh_move_to(mpat, mp1.gridPoint.x(), mp1.gridPoint.y());
cairo_pattern_mesh_curve_to(mpat, mp1.controlRight.x(), mp1.controlRight.y(), mp2.controlLeft.x(), mp2.controlLeft.y(), mp2.gridPoint.x(), mp2.gridPoint.y());
cairo_pattern_mesh_curve_to(mpat, mp2.controlBottom.x(), mp2.controlBottom.y(), mp3.controlTop.x(), mp3.controlTop.y(), mp3.gridPoint.x(), mp3.gridPoint.y());
cairo_pattern_mesh_curve_to(mpat, mp3.controlLeft.x(), mp3.controlLeft.y(), mp4.controlRight.x(), mp4.controlRight.y(), mp4.gridPoint.x(), mp4.gridPoint.y());
cairo_pattern_mesh_curve_to(mpat, mp4.controlTop.x(), mp4.controlTop.y(), mp1.controlBottom.x(), mp1.controlBottom.y(), mp1.gridPoint.x(), mp1.gridPoint.y());
cairo_pattern_mesh_set_control_point(mpat, 0, mp1.controlColor.x(), mp1.controlColor.y());
cairo_pattern_mesh_set_control_point(mpat, 1, mp2.controlColor.x(), mp2.controlColor.y());
cairo_pattern_mesh_set_control_point(mpat, 2, mp3.controlColor.x(), mp3.controlColor.y());
cairo_pattern_mesh_set_control_point(mpat, 3, mp4.controlColor.x(), mp4.controlColor.y());
mp1.color.getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 0, r, g, b, a);
mp2.color.getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 1, r, g, b, a);
mp3.color.getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 2, r, g, b, a);
mp4.color.getRgbF(&r, &g, &b, &a);
cairo_pattern_mesh_set_corner_color_rgba(mpat, 3, r, g, b, a);
cairo_pattern_mesh_end_patch(mpat);
#endif
}
cairo_pattern_set_filter(mpat, CAIRO_FILTER_BEST);
cairo_set_source(cr, mpat);
cairo_paint_with_alpha(cr, 1.0);
pat = cairo_pattern_create_for_surface(img);
cairo_pattern_set_extend(pat, CAIRO_EXTEND_NONE);
cairo_pattern_set_filter(pat, CAIRO_FILTER_BEST);
#else
double p3x = gradPatchP3.x();
double p3y = gradPatchP3.y();
img = cairo_surface_create_similar(cairo_get_target(m_cr), CAIRO_CONTENT_COLOR_ALPHA, p3x, p3y);
cr = cairo_create(img);
cairo_set_fill_rule(cr, CAIRO_FILL_RULE_EVEN_ODD);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_tolerance(cr, 0.5 );
double r, g, b, a;
for (int col = 0; col < meshGradientPatches.count(); col++)
{
meshGradientPatch patch = meshGradientPatches[col];
meshPoint mp1 = patch.TL;
meshPoint mp2 = patch.TR;
meshPoint mp3 = patch.BR;
meshPoint mp4 = patch.BL;
cairo_new_path( cr );
cairo_move_to(cr, mp1.gridPoint.x(), mp1.gridPoint.y());
cairo_curve_to(cr, mp1.controlRight.x(), mp1.controlRight.y(), mp2.controlLeft.x(), mp2.controlLeft.y(), mp2.gridPoint.x(), mp2.gridPoint.y());
cairo_curve_to(cr, mp2.controlBottom.x(), mp2.controlBottom.y(), mp3.controlTop.x(), mp3.controlTop.y(), mp3.gridPoint.x(), mp3.gridPoint.y());
cairo_curve_to(cr, mp3.controlLeft.x(), mp3.controlLeft.y(), mp4.controlRight.x(), mp4.controlRight.y(), mp4.gridPoint.x(), mp4.gridPoint.y());
cairo_curve_to(cr, mp4.controlTop.x(), mp4.controlTop.y(), mp1.controlBottom.x(), mp1.controlBottom.y(), mp1.gridPoint.x(), mp1.gridPoint.y());
cairo_close_path( cr );
double acr = 0.0;
double acg = 0.0;
double acb = 0.0;
double aca = 0.0;
mp1.color.getRgbF(&r, &g, &b, &a);
acr += r;
acg += g;
acb += b;
aca += a;
mp2.color.getRgbF(&r, &g, &b, &a);
acr += r;
acg += g;
acb += b;
aca += a;
mp3.color.getRgbF(&r, &g, &b, &a);
acr += r;
acg += g;
acb += b;
aca += a;
mp4.color.getRgbF(&r, &g, &b, &a);
acr += r;
acg += g;
acb += b;
aca += a;
cairo_set_source_rgba(cr, acr / 4.0, acg / 4.0, acb / 4.0, aca / 4.0);
cairo_fill(cr);
}
pat = cairo_pattern_create_for_surface(img);
cairo_pattern_set_extend(pat, CAIRO_EXTEND_NONE);
cairo_pattern_set_filter(pat, CAIRO_FILTER_BEST);
#endif
}
else
{
bool isFirst = true;
double rampPoint, lastPoint = 0.0;
double x1 = fill_gradient.origin().x();
double y1 = fill_gradient.origin().y();
double x2 = fill_gradient.vector().x();
double y2 = fill_gradient.vector().y();
double fx = fill_gradient.focalPoint().x();
double fy = fill_gradient.focalPoint().y();
if (fill_gradient.type() == VGradient::linear)
pat = cairo_pattern_create_linear (x1, y1, x2, y2);
else
pat = cairo_pattern_create_radial (fx, fy, 0, x1, y1, sqrt(pow(x2 - x1, 2) + pow(y2 - y1,2)));
if (fill_gradient.repeatMethod() == VGradient::none)
cairo_pattern_set_extend(pat, CAIRO_EXTEND_NONE);
else
cairo_pattern_set_extend(pat, CAIRO_EXTEND_PAD);
cairo_pattern_set_filter(pat, CAIRO_FILTER_GOOD);
QList<VColorStop*> colorStops = fill_gradient.colorStops();
for( int offset = 0 ; offset < colorStops.count() ; offset++ )
{
rampPoint = colorStops[ offset ]->rampPoint;
if ((lastPoint == rampPoint) && (!isFirst))
continue;
isFirst = false;
double a = colorStops[offset]->opacity;
double r, g, b;
colorStops[ offset ]->color.getRgbF(&r, &g, &b);
cairo_pattern_add_color_stop_rgba (pat, colorStops[ offset ]->rampPoint, r, g, b, a);
lastPoint = rampPoint;
}
cairo_matrix_t matrix;
QTransform qmatrix;
if (fill_gradient.type() == VGradient::radial)
{
double rotEnd = xy2Deg(x2 - x1, y2 - y1);
qmatrix.translate(x1, y1);
qmatrix.rotate(rotEnd);
qmatrix.shear(gradientSkew, 0);
qmatrix.translate(0, y1 * (1.0 - gradientScale));
qmatrix.translate(-x1, -y1);
qmatrix.scale(1, gradientScale);
}
else
{
qmatrix.translate(x1, y1);
qmatrix.shear(-gradientSkew, 0);
qmatrix.translate(-x1, -y1);
}
cairo_matrix_init(&matrix, qmatrix.m11(), qmatrix.m12(), qmatrix.m21(), qmatrix.m22(), qmatrix.dx(), qmatrix.dy());
cairo_matrix_invert(&matrix);
cairo_pattern_set_matrix (pat, &matrix);
}
cairo_set_source (m_cr, pat);
cairo_clip_preserve (m_cr);
if (maskMode > 0)
{
cairo_pattern_t *patM = getMaskPattern();
setRasterOp(m_blendModeFill);
cairo_mask(m_cr, patM);
if ((maskMode == 2) || (maskMode == 4) || (maskMode == 5) || (maskMode == 6))
cairo_surface_destroy(imageMask);
cairo_pattern_destroy (patM);
}
else
{
setRasterOp(m_blendModeFill);
cairo_paint_with_alpha (m_cr, fill_trans);
}
cairo_pattern_destroy (pat);
#if (CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 2))
if ((fill_gradient.type() == VGradient::fourcolor) || (fill_gradient.type() == VGradient::diamond) || (fill_gradient.type() == VGradient::mesh) || (fill_gradient.type() == VGradient::freemesh))
{
cairo_surface_destroy(img);
cairo_pattern_destroy(mpat);
cairo_destroy( cr );
}
#else
if ((fill_gradient.type() == VGradient::mesh) || (fill_gradient.type() == VGradient::freemesh))
{
cairo_surface_destroy(img);
cairo_destroy( cr );
}
#endif
}
else if (fillMode == 3)
{
cairo_set_antialias(m_cr, CAIRO_ANTIALIAS_NONE);
cairo_surface_t *image2 = cairo_image_surface_create_for_data ((uchar*)m_pattern->getPattern()->bits(), CAIRO_FORMAT_ARGB32, m_pattern->getPattern()->width(), m_pattern->getPattern()->height(), m_pattern->getPattern()->width()*4);
cairo_pattern_t *m_pat = cairo_pattern_create_for_surface(image2);
cairo_pattern_set_extend(m_pat, CAIRO_EXTEND_REPEAT);
cairo_pattern_set_filter(m_pat, CAIRO_FILTER_GOOD);
cairo_matrix_t matrix;
QTransform qmatrix;
qmatrix.translate(patternOffsetX, patternOffsetY);
qmatrix.rotate(patternRotation);
qmatrix.shear(-patternSkewX, patternSkewY);
qmatrix.scale(patternScaleX, patternScaleY);
qmatrix.scale(m_pattern->width / static_cast<double>(m_pattern->getPattern()->width()), m_pattern->height / static_cast<double>(m_pattern->getPattern()->height()));
if (patternMirrorX)
qmatrix.scale(-1, 1);
if (patternMirrorY)
qmatrix.scale(1, -1);
cairo_matrix_init(&matrix, qmatrix.m11(), qmatrix.m12(), qmatrix.m21(), qmatrix.m22(), qmatrix.dx(), qmatrix.dy());
cairo_matrix_invert(&matrix);
cairo_pattern_set_matrix (m_pat, &matrix);
cairo_set_source (m_cr, m_pat);
cairo_clip_preserve (m_cr);
if (maskMode > 0)
{
cairo_pattern_t *patM = getMaskPattern();
setRasterOp(m_blendModeFill);
cairo_mask(m_cr, patM);
if ((maskMode == 2) || (maskMode == 4) || (maskMode == 5) || (maskMode == 6))
cairo_surface_destroy(imageMask);
cairo_pattern_destroy (patM);
}
else
{
setRasterOp(m_blendModeFill);
cairo_paint_with_alpha (m_cr, fill_trans);
}
cairo_pattern_destroy (m_pat);
cairo_surface_destroy (image2);
cairo_set_antialias(m_cr, CAIRO_ANTIALIAS_DEFAULT);
}
else if (fillMode == 4)
{
cairo_path_t *path;
path = cairo_copy_path(m_cr);
cairo_push_group(m_cr);
if (hatchUseBackground && hatchBackground.isValid())
{
double r2, g2, b2;
hatchBackground.getRgbF(&r2, &g2, &b2);
cairo_set_source_rgb(m_cr, r2, g2, b2);
cairo_fill_preserve(m_cr);
}
double r, g, b;
hatchForeground.getRgbF(&r, &g, &b);
cairo_clip_preserve (m_cr);
cairo_set_line_width( m_cr, 1 );
cairo_set_source_rgb(m_cr, r, g, b);
translate(hatchWidth / 2.0, hatchHeight / 2.0);
double lineLen = sqrt((hatchWidth / 2.0) * (hatchWidth / 2.0) + (hatchHeight / 2.0) * (hatchHeight / 2.0));
double dist = 0.0;
while (dist < lineLen)
{
cairo_save( m_cr );
rotate(-hatchAngle);
newPath();
moveTo(-lineLen, dist);
lineTo(lineLen, dist);
cairo_stroke( m_cr );
if (dist > 0)
{
newPath();
moveTo(-lineLen, -dist);
lineTo(lineLen, -dist);
cairo_stroke( m_cr );
}
cairo_restore( m_cr );
if ((hatchType == 1) || (hatchType == 2))
{
cairo_save( m_cr );
rotate(-hatchAngle + 90);
newPath();
moveTo(-lineLen, dist);
lineTo(lineLen, dist);
cairo_stroke( m_cr );
if (dist > 0)
{
newPath();
moveTo(-lineLen, -dist);
lineTo(lineLen, -dist);
cairo_stroke( m_cr );
}
cairo_restore( m_cr );
}
if (hatchType == 2)
{
cairo_save( m_cr );
rotate(-hatchAngle + 45);
double dDist = dist * sqrt(2.0);
newPath();
moveTo(-lineLen, dDist);
lineTo(lineLen, dDist);
cairo_stroke( m_cr );
if (dist > 0)
{
newPath();
moveTo(-lineLen, -dDist);
lineTo(lineLen, -dDist);
cairo_stroke( m_cr );
}
cairo_restore( m_cr );
}
dist += hatchDistance;
}
cairo_pop_group_to_source (m_cr);
setRasterOp(m_blendModeFill);
if (maskMode > 0)
{
cairo_pattern_t *patM = getMaskPattern();
cairo_pattern_set_filter(patM, CAIRO_FILTER_FAST);
cairo_mask(m_cr, patM);
if ((maskMode == 2) || (maskMode == 4) || (maskMode == 5) || (maskMode == 6))
cairo_surface_destroy(imageMask);
cairo_pattern_destroy(patM);
}
else
cairo_paint_with_alpha (m_cr, fill_trans);
newPath();
cairo_append_path(m_cr, path);
cairo_path_destroy(path);
}
cairo_restore( m_cr );
cairo_set_operator(m_cr, CAIRO_OPERATOR_OVER);
}
void ScPainter::strokePathHelper()
{
cairo_save( m_cr );
cairo_set_operator(m_cr, CAIRO_OPERATOR_OVER);
if( LineWidth == 0 )
cairo_set_line_width( m_cr, 1.0 / m_zoomFactor );
else
cairo_set_line_width( m_cr, LineWidth );
if( m_array.count() > 0 )
cairo_set_dash( m_cr, m_array.data(), m_array.count(), m_offset);
else
cairo_set_dash( m_cr, NULL, 0, 0 );
cairo_set_operator(m_cr, CAIRO_OPERATOR_OVER);
if( PLineEnd == Qt::RoundCap )
cairo_set_line_cap (m_cr, CAIRO_LINE_CAP_ROUND);
else if( PLineEnd == Qt::SquareCap )
cairo_set_line_cap (m_cr, CAIRO_LINE_CAP_SQUARE);
else if( PLineEnd == Qt::FlatCap )
cairo_set_line_cap (m_cr, CAIRO_LINE_CAP_BUTT);
if( PLineJoin == Qt::RoundJoin )
cairo_set_line_join( m_cr, CAIRO_LINE_JOIN_ROUND );
else if( PLineJoin == Qt::BevelJoin )
cairo_set_line_join( m_cr, CAIRO_LINE_JOIN_BEVEL );
else if( PLineJoin == Qt::MiterJoin )
cairo_set_line_join( m_cr, CAIRO_LINE_JOIN_MITER );
if (strokeMode == 3)
{
cairo_push_group(m_cr);
cairo_set_antialias(m_cr, CAIRO_ANTIALIAS_NONE);
cairo_surface_t *image2 = cairo_image_surface_create_for_data ((uchar*)m_pattern->getPattern()->bits(), CAIRO_FORMAT_ARGB32, m_pattern->getPattern()->width(), m_pattern->getPattern()->height(), m_pattern->getPattern()->width()*4);
cairo_pattern_t *m_pat = cairo_pattern_create_for_surface(image2);
cairo_pattern_set_extend(m_pat, CAIRO_EXTEND_REPEAT);
cairo_pattern_set_filter(m_pat, CAIRO_FILTER_GOOD);
cairo_matrix_t matrix;
QTransform qmatrix;
qmatrix.translate(-LineWidth / 2.0, -LineWidth / 2.0);
qmatrix.translate(patternOffsetX, patternOffsetY);
qmatrix.rotate(patternRotation);
qmatrix.shear(-patternSkewX, patternSkewY);
qmatrix.scale(patternScaleX, patternScaleY);
qmatrix.scale(m_pattern->width / static_cast<double>(m_pattern->getPattern()->width()), m_pattern->height / static_cast<double>(m_pattern->getPattern()->height()));
if (patternMirrorX)
qmatrix.scale(-1, 1);
if (patternMirrorY)
qmatrix.scale(1, -1);
cairo_matrix_init(&matrix, qmatrix.m11(), qmatrix.m12(), qmatrix.m21(), qmatrix.m22(), qmatrix.dx(), qmatrix.dy());
cairo_matrix_invert(&matrix);
cairo_pattern_set_matrix (m_pat, &matrix);
cairo_set_source (m_cr, m_pat);
cairo_stroke_preserve( m_cr );
cairo_pattern_destroy (m_pat);
cairo_surface_destroy (image2);
cairo_set_antialias(m_cr, CAIRO_ANTIALIAS_DEFAULT);
cairo_pop_group_to_source (m_cr);
setRasterOp(m_blendModeStroke);
cairo_paint_with_alpha (m_cr, stroke_trans);
}
else if (strokeMode == 2)
{
cairo_push_group(m_cr);
cairo_pattern_t *pat;
bool isFirst = true;
double rampPoint, lastPoint = 0.0;
double x1 = stroke_gradient.origin().x();
double y1 = stroke_gradient.origin().y();
double x2 = stroke_gradient.vector().x();
double y2 = stroke_gradient.vector().y();
double fx = stroke_gradient.focalPoint().x();
double fy = stroke_gradient.focalPoint().y();
if (stroke_gradient.type() == VGradient::linear)
pat = cairo_pattern_create_linear (x1, y1, x2, y2);
else
pat = cairo_pattern_create_radial (fx, fy, 0, x1, y1, sqrt(pow(x2 - x1, 2) + pow(y2 - y1,2)));
if (stroke_gradient.repeatMethod() == VGradient::none)
cairo_pattern_set_extend(pat, CAIRO_EXTEND_NONE);
else
cairo_pattern_set_extend(pat, CAIRO_EXTEND_PAD);
cairo_pattern_set_filter(pat, CAIRO_FILTER_GOOD);
QList<VColorStop*> colorStops = stroke_gradient.colorStops();
for( int offset = 0 ; offset < colorStops.count() ; offset++ )
{
rampPoint = colorStops[ offset ]->rampPoint;
if ((lastPoint == rampPoint) && (!isFirst))
continue;
isFirst = false;
double a = colorStops[offset]->opacity;
double r, g, b;
colorStops[ offset ]->color.getRgbF(&r, &g, &b);
cairo_pattern_add_color_stop_rgba (pat, rampPoint, r, g, b, a);
lastPoint = rampPoint;
}
cairo_matrix_t matrix;
QTransform qmatrix;
if (stroke_gradient.type() == VGradient::radial)
{
double rotEnd = xy2Deg(x2 - x1, y2 - y1);
qmatrix.translate(x1, y1);
qmatrix.rotate(rotEnd);
qmatrix.shear(gradientSkew, 0);
qmatrix.translate(0, y1 * (1.0 - gradientScale));
qmatrix.translate(-x1, -y1);
qmatrix.scale(1, gradientScale);
}
else
{
qmatrix.translate(x1, y1);
qmatrix.shear(-gradientSkew, 0);
qmatrix.translate(-x1, -y1);
}
cairo_matrix_init(&matrix, qmatrix.m11(), qmatrix.m12(), qmatrix.m21(), qmatrix.m22(), qmatrix.dx(), qmatrix.dy());
cairo_matrix_invert(&matrix);
cairo_pattern_set_matrix (pat, &matrix);
cairo_set_source (m_cr, pat);
cairo_stroke_preserve( m_cr );
cairo_pattern_destroy (pat);
cairo_pop_group_to_source (m_cr);
setRasterOp(m_blendModeStroke);
cairo_paint_with_alpha (m_cr, stroke_trans);
}
else
{
double r, g, b;
m_stroke.getRgbF(&r, &g, &b);
cairo_set_source_rgba( m_cr, r, g, b, stroke_trans );
setRasterOp(m_blendModeStroke);
cairo_stroke_preserve( m_cr );
}
cairo_restore( m_cr );
cairo_set_operator(m_cr, CAIRO_OPERATOR_OVER);
}
void ScPainter::setClipPath()
{
cairo_clip (m_cr);
}
void ScPainter::drawImage( QImage *image)
{
cairo_set_antialias(m_cr, CAIRO_ANTIALIAS_NONE);
/*
cairo_surface_t *image3 = cairo_image_surface_create_for_data ((uchar*)image->bits(), CAIRO_FORMAT_ARGB32, image->width(), image->height(), image->width()*4);
cairo_set_source_surface (m_cr, image3, 0, 0);
cairo_paint_with_alpha (m_cr, fill_trans);
cairo_surface_destroy (image3);
*/
/* Code with Layers, crashes on cairo_push_group */
// cairo_scale(m_cr, m_zoomFactor, m_zoomFactor);
cairo_push_group(m_cr);
cairo_set_operator(m_cr, CAIRO_OPERATOR_OVER);
cairo_set_fill_rule(m_cr, cairo_get_fill_rule(m_cr));
cairo_surface_t *image2 = cairo_image_surface_create_for_data ((uchar*)image->bits(), CAIRO_FORMAT_RGB24, image->width(), image->height(), image->width()*4);
cairo_surface_t *image3 = cairo_image_surface_create_for_data ((uchar*)image->bits(), CAIRO_FORMAT_ARGB32, image->width(), image->height(), image->width()*4);
cairo_set_source_surface (m_cr, image2, 0, 0);
cairo_pattern_set_filter(cairo_get_source(m_cr), CAIRO_FILTER_GOOD);
cairo_mask_surface (m_cr, image3, 0, 0);
cairo_surface_destroy (image2);
cairo_surface_destroy (image3);
cairo_pop_group_to_source (m_cr);
cairo_pattern_set_filter(cairo_get_source(m_cr), CAIRO_FILTER_GOOD);
setRasterOp(m_blendModeFill);
if (maskMode > 0)
{
cairo_pattern_t *patM = getMaskPattern();
cairo_pattern_set_filter(patM, CAIRO_FILTER_GOOD);
cairo_mask(m_cr, patM);
if ((maskMode == 2) || (maskMode == 4) || (maskMode == 5) || (maskMode == 6))
cairo_surface_destroy(imageMask);
cairo_pattern_destroy(patM);
}
else
cairo_paint_with_alpha (m_cr, fill_trans);
cairo_set_operator(m_cr, CAIRO_OPERATOR_OVER);
cairo_set_antialias(m_cr, CAIRO_ANTIALIAS_DEFAULT);
}
void ScPainter::setupPolygon(FPointArray *points, bool closed)
{
bool nPath = true;
bool first = true;
FPoint np, np1, np2, np3, np4, firstP;
if (points->size() <= 3)
return;
newPath();
for (int poi=0; poi<points->size()-3; poi += 4)
{
if (points->isMarker(poi))
{
nPath = true;
continue;
}
if (nPath)
{
np = points->point(poi);
if ((!first) && (closed) && (np4 == firstP))
cairo_close_path( m_cr );
cairo_move_to( m_cr, np.x(), np.y());
first = nPath = false;
firstP = np4 = np;
}
np = points->point(poi);
np1 = points->point(poi + 1);
np2 = points->point(poi + 3);
np3 = points->point(poi + 2);
if (np4 == np3)
continue;
if ((np == np1) && (np2 == np3))
cairo_line_to( m_cr, np3.x(), np3.y());
else
cairo_curve_to(m_cr, np1.x(), np1.y(), np2.x(), np2.y(), np3.x(), np3.y());
np4 = np3;
}
if (closed)
cairo_close_path( m_cr );
}
void ScPainter::setupSharpPolygon(FPointArray *points, bool closed)
{
bool nPath = true;
bool first = true;
FPoint np, np1, np2, np3, np4, firstP;
if (points->size() <= 3)
return;
newPath();
for (int poi=0; poi<points->size()-3; poi += 4)
{
if (points->isMarker(poi))
{
nPath = true;
continue;
}
if (nPath)
{
np = points->point(poi);
if ((!first) && (closed) && (np4 == firstP))
cairo_close_path( m_cr );
sharpLineHelper(np);
cairo_move_to( m_cr, np.x(), np.y());
first = nPath = false;
firstP = np4 = np;
}
np = points->point(poi);
np1 = points->point(poi + 1);
np2 = points->point(poi + 3);
np3 = points->point(poi + 2);
if (np4 == np3)
continue;
if ((np == np1) && (np2 == np3))
{
sharpLineHelper(np3);
cairo_line_to( m_cr, np3.x(), np3.y());
}
else
cairo_curve_to(m_cr, np1.x(), np1.y(), np2.x(), np2.y(), np3.x(), np3.y());
np4 = np3;
}
if (closed)
cairo_close_path( m_cr );
}
void ScPainter::sharpLineHelper(FPoint &pp)
{
double x1 = pp.x();
double y1 = pp.y();
cairo_user_to_device (m_cr, &x1, &y1);
x1 = floor(x1) + 0.5;
y1 = floor(y1) + 0.5;
cairo_device_to_user (m_cr, &x1, &y1);
pp.setXY(x1, y1);
}
void ScPainter::sharpLineHelper(QPointF &pp)
{
double x1 = pp.x();
double y1 = pp.y();
cairo_user_to_device (m_cr, &x1, &y1);
x1 = floor(x1) + 0.5;
y1 = floor(y1) + 0.5;
cairo_device_to_user (m_cr, &x1, &y1);
pp.setX(x1);
pp.setY(y1);
}
void ScPainter::drawPolygon()
{
fillPath();
}
void ScPainter::drawPolyLine()
{
strokePath();
}
void ScPainter::drawLine(FPoint start, FPoint end)
{
newPath();
moveTo(start.x(), start.y());
lineTo(end.x(), end.y());
strokePath();
}
void ScPainter::drawLine(const QPointF& start, const QPointF& end)
{
newPath();
moveTo(start.x(), start.y());
lineTo(end.x(), end.y());
strokePath();
}
void ScPainter::drawSharpLine(FPoint start, FPoint end)
{
newPath();
sharpLineHelper(start);
sharpLineHelper(end);
moveTo(start.x(), start.y());
lineTo(end.x(), end.y());
strokePath();
}
void ScPainter::drawSharpLine(QPointF start, QPointF end)
{
newPath();
sharpLineHelper(start);
sharpLineHelper(end);
moveTo(start.x(), start.y());
lineTo(end.x(), end.y());
strokePath();
}
void ScPainter::drawRect(double x, double y, double w, double h)
{
newPath();
cairo_rectangle(m_cr, x, y, w, h);
fillPath();
strokePath();
}
void ScPainter::drawSharpRect(double x, double y, double w, double h)
{
newPath();
double x1 = x;
double y1 = y;
double w1 = w;
double h1 = h;
// see http://www.cairographics.org/FAQ/#sharp_lines
cairo_user_to_device (m_cr, &x1, &y1);
cairo_user_to_device (m_cr, &w1, &h1);
x1 = floor(x1) + 0.5;
y1 = floor(y1) + 0.5;
w1 = floor(w1) + 0.5;
h1 = floor(h1) + 0.5;
cairo_device_to_user (m_cr, &x1, &y1);
cairo_device_to_user (m_cr, &w1, &h1);
cairo_rectangle(m_cr, x1, y1, w1, h1);
fillPath();
strokePath();
}
void ScPainter::drawText(QRectF area, QString text, bool filled, int align)
{
cairo_text_extents_t extents;
cairo_font_extents_t extentsF;
double x;
if (align == 0)
x = area.center().x();
else
x = area.x();
double y = area.y();
double ww = 0;
double hh = 0;
double r, g, b;
cairo_select_font_face(m_cr, m_font.family().toLatin1(), m_font.italic() ? CAIRO_FONT_SLANT_ITALIC : CAIRO_FONT_SLANT_NORMAL, m_font.bold() ? CAIRO_FONT_WEIGHT_BOLD : CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_font_size(m_cr, m_font.pointSizeF());
cairo_font_extents (m_cr, &extentsF);
QStringList textList = text.split("\n");
for (int a = 0; a < textList.count(); ++a)
{
cairo_text_extents (m_cr, textList[a].toUtf8(), &extents);
if (align == 0)
x = qMin(area.center().x() - (extents.width / 2.0 + extents.x_bearing), x);
ww = qMax(ww, extents.width);
}
hh = extentsF.height * textList.count();
if ((align == 0) || (align == 1))
y = area.center().y() - ((extentsF.height * textList.count()) / 2.0);
if (filled)
{
m_fill.getRgbF(&r, &g, &b);
cairo_set_source_rgba( m_cr, r, g, b, fill_trans );
cairo_new_path( m_cr );
cairo_rectangle(m_cr, x, y, ww, hh);
cairo_fill( m_cr );
}
cairo_new_path( m_cr );
y += extentsF.ascent;
cairo_move_to (m_cr, x, y);
m_stroke.getRgbF(&r, &g, &b);
cairo_set_source_rgba( m_cr, r, g, b, stroke_trans );
for (int a = 0; a < textList.count(); ++a)
{
cairo_show_text (m_cr, textList[a].toUtf8());
y += extentsF.height;
cairo_move_to (m_cr, x, y);
}
}
void ScPainter::drawShadeCircle(const QRectF &re, const QColor color, bool sunken, int lineWidth)
{
setStrokeMode(1);
double bezierCircle = 0.55228475;
double dx = re.width();
double dy = re.height();
double cx = dx / 2.0;
double cy = dy / 2.0;
double rb = 0.5 * (dx < dy ? dx : dy);
double r = rb - 0.25 * lineWidth;
QColor shade;
shade.setRgbF(color.redF() * 0.5, color.greenF() * 0.5, color.blueF() * 0.5);
QColor light;
light.setRgbF(color.redF() * 0.5 + 0.5, color.greenF() * 0.5 + 0.5, color.blueF() * 0.5 + 0.5);
cairo_save(m_cr);
translate(0, dy);
scale(1, -1);
setPen(color, lineWidth * 0.5, Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin);
newPath();
moveTo(cx + r, cy);
cairo_curve_to(m_cr, cx + r, cy + bezierCircle * r, cx + bezierCircle * r, cy + r, cx, cy + r);
cairo_curve_to(m_cr, cx - bezierCircle * r, cy + r, cx - r, cy + bezierCircle * r, cx - r, cy);
cairo_curve_to(m_cr, cx - r, cy - bezierCircle * r, cx - bezierCircle * r, cy - r, cx, cy - r);
cairo_curve_to(m_cr, cx + bezierCircle * r, cy - r, cx + r, cy - bezierCircle * r, cx + r, cy);
strokePath();
r = rb - 0.73 * lineWidth;
double r2 = r / 1.414213562;
if (sunken)
setPen(shade, lineWidth * 0.5, Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin);
else
setPen(light, lineWidth * 0.5, Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin);
newPath();
moveTo(cx + r2, cy + r2);
cairo_curve_to(m_cr, cx + (1 - bezierCircle) * r2, cy + (1 + bezierCircle) * r2, cx - (1 - bezierCircle) * r2, cy + (1 + bezierCircle) * r2, cx - r2, cy + r2);
cairo_curve_to(m_cr, cx - (1 + bezierCircle) * r2, cy + (1 - bezierCircle) * r2, cx - (1 + bezierCircle) * r2, cy - (1 - bezierCircle) * r2, cx - r2, cy - r2);
strokePath();
if (sunken)
setPen(light, lineWidth * 0.5, Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin);
else
setPen(shade, lineWidth * 0.5, Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin);
newPath();
moveTo(cx - r2, cy - r2);
cairo_curve_to(m_cr, cx - (1 - bezierCircle) * r2, cy - (1 + bezierCircle) * r2, cx + (1 - bezierCircle) * r2, cy - (1 + bezierCircle) * r2, cx + r2, cy - r2);
cairo_curve_to(m_cr, cx + (1 + bezierCircle) * r2, cy - (1 - bezierCircle) * r2, cx + (1 + bezierCircle) * r2, cy + (1 - bezierCircle) * r2, cx + r2, cy + r2);
strokePath();
cairo_restore( m_cr );
}
void ScPainter::drawShadePanel(const QRectF &r, const QColor color, bool sunken, int lineWidth)
{
QColor shade;
QColor light;
if (sunken)
{
shade.setRgbF(color.redF() * 0.5, color.greenF() * 0.5, color.blueF() * 0.5);
light.setRgbF(color.redF() * 0.5 + 0.5, color.greenF() * 0.5 + 0.5, color.blueF() * 0.5 + 0.5);
}
else
{
light.setRgbF(color.redF() * 0.5, color.greenF() * 0.5, color.blueF() * 0.5);
shade.setRgbF(color.redF() * 0.5 + 0.5, color.greenF() * 0.5 + 0.5, color.blueF() * 0.5 + 0.5);
}
double x1, y1, y2, x3;
x1 = r.x();
x3 = r.x() + r.width();
y1 = r.y() + r.height();
y2 = r.y();
setFillMode(ScPainter::Solid);
newPath();
moveTo(x1, y1);
lineTo(x1, y2);
lineTo(x3, y2);
lineTo(x3 - lineWidth, lineWidth);
lineTo(lineWidth, lineWidth);
lineTo(lineWidth, y1 - lineWidth);
closePath();
setBrush(shade);
fillPath();
newPath();
moveTo(x1, y1);
lineTo(x3, y1);
lineTo(x3, y2);
lineTo(x3 - lineWidth, lineWidth);
lineTo(x3 - lineWidth, y1 - lineWidth);
lineTo(lineWidth, y1 - lineWidth);
closePath();
setBrush(light);
fillPath();
}
void ScPainter::colorizeAlpha(QColor color)
{
cairo_surface_t *data = cairo_get_group_target(m_cr);
cairo_surface_flush(data);
int w = cairo_image_surface_get_width(data);
int h = cairo_image_surface_get_height(data);
int stride = cairo_image_surface_get_stride(data);
unsigned char *d = cairo_image_surface_get_data(data);
int cr = color.red();
int cg = color.green();
int cb = color.blue();
for(int y = 0; y < h; ++y)
{
QRgb *dst = (QRgb*)d;
for(int x = 0; x < w; ++x)
{
if (qAlpha(*dst) > 0)
*dst = qRgba(cr, cg, cb, qAlpha(*dst));
dst++;
}
d += stride;
}
cairo_surface_mark_dirty(data);
}
void ScPainter::colorize(QColor color)
{
cairo_surface_t *data = cairo_get_group_target(m_cr);
cairo_surface_flush(data);
int w = cairo_image_surface_get_width(data);
int h = cairo_image_surface_get_height(data);
int stride = cairo_image_surface_get_stride(data);
unsigned char *d = cairo_image_surface_get_data(data);
int cr = color.red();
int cg = color.green();
int cb = color.blue();
int hu, sa, v;
int cc2, cm2, cy2, k2;
QColor tmpR;
for(int y = 0; y < h; ++y)
{
QRgb *dst = (QRgb*)d;
for(int x = 0; x < w; ++x)
{
if (qAlpha(*dst) > 0)
{
k2 = 255 - qMin(qRound(0.3 * qRed(*dst) + 0.59 * qGreen(*dst) + 0.11 * qBlue(*dst)), 255);
tmpR.setRgb(cr, cg, cb);
tmpR.getHsv(&hu, &sa, &v);
tmpR.setHsv(hu, sa * k2 / 255, 255 - ((255 - v) * k2 / 255));
tmpR.getRgb(&cc2, &cm2, &cy2);
*dst = qRgba(cc2, cm2, cy2, qAlpha(*dst));
}
dst++;
}
d += stride;
}
cairo_surface_mark_dirty(data);
}
void ScPainter::blurAlpha(int radius)
{
if (radius < 1)
return;
cairo_surface_t *data = cairo_get_group_target(m_cr);
QRgb *pix = (QRgb*)cairo_image_surface_get_data(data);
int w = cairo_image_surface_get_width(data);
int h = cairo_image_surface_get_height(data);
int wm = w-1;
int hm = h-1;
int wh = w*h;
int div = radius+radius+1;
int *a = new int[wh];
int asum, x, y, i, yp, yi, yw;
QRgb p;
int *vmin = new int[qMax(w,h)];
int divsum = (div+1)>>1;
divsum *= divsum;
int *dv = new int[256*divsum];
for (i=0; i < 256*divsum; ++i)
{
dv[i] = (i/divsum);
}
yw = yi = 0;
int **stack = new int*[div];
for(int i = 0; i < div; ++i)
{
stack[i] = new int[1];
}
int stackpointer;
int stackstart;
int *sir;
int rbs;
int r1 = radius+1;
int aoutsum;
int ainsum;
for (y = 0; y < h; ++y)
{
ainsum = aoutsum = asum = 0;
for(i = -radius; i <= radius; ++i)
{
p = pix[yi+qMin(wm,qMax(i,0))];
sir = stack[i+radius];
sir[0] = qAlpha(p);
rbs = r1-abs(i);
asum += sir[0]*rbs;
if (i > 0)
ainsum += sir[0];
else
aoutsum += sir[0];
}
stackpointer = radius;
for (x=0; x < w; ++x)
{
a[yi] = dv[asum];
asum -= aoutsum;
stackstart = stackpointer-radius+div;
sir = stack[stackstart%div];
aoutsum -= sir[0];
if (y == 0)
vmin[x] = qMin(x+radius+1,wm);
p = pix[yw+vmin[x]];
sir[0] = qAlpha(p);
ainsum += sir[0];
asum += ainsum;
stackpointer = (stackpointer+1)%div;
sir = stack[(stackpointer)%div];
aoutsum += sir[0];
ainsum -= sir[0];
++yi;
}
yw += w;
}
for (x=0; x < w; ++x)
{
ainsum = aoutsum = asum = 0;
yp = -radius * w;
for(i = -radius; i <= radius; ++i)
{
yi=qMax(0,yp)+x;
sir = stack[i+radius];
sir[0] = a[yi];
rbs = r1-abs(i);
asum += a[yi]*rbs;
if (i > 0)
ainsum += sir[0];
else
aoutsum += sir[0];
if (i < hm)
{
yp += w;
}
}
yi = x;
stackpointer = radius;
for (y=0; y < h; ++y)
{
pix[yi] = qRgba(qRed(pix[yi]), qGreen(pix[yi]), qBlue(pix[yi]), dv[asum]);
asum -= aoutsum;
stackstart = stackpointer-radius+div;
sir = stack[stackstart%div];
aoutsum -= sir[0];
if (x==0)
{
vmin[y] = qMin(y+r1,hm)*w;
}
p = x+vmin[y];
sir[0] = a[p];
ainsum += sir[0];
asum += ainsum;
stackpointer = (stackpointer+1)%div;
sir = stack[stackpointer];
aoutsum += sir[0];
ainsum -= sir[0];
yi += w;
}
}
delete [] a;
delete [] vmin;
delete [] dv;
for(int i = 0; i < div; ++i)
{
delete [] stack[i];
}
delete [] stack;
cairo_surface_mark_dirty(data);
}
void ScPainter::blur(int radius)
{
if (radius < 1)
return;
cairo_surface_t *data = cairo_get_group_target(m_cr);
QRgb *pix = (QRgb*)cairo_image_surface_get_data(data);
int w = cairo_image_surface_get_width(data);
int h = cairo_image_surface_get_height(data);
int wm = w-1;
int hm = h-1;
int wh = w*h;
int div = radius+radius+1;
int *r = new int[wh];
int *g = new int[wh];
int *b = new int[wh];
int *a = new int[wh];
int rsum, gsum, bsum, asum, x, y, i, yp, yi, yw;
QRgb p;
int *vmin = new int[qMax(w,h)];
int divsum = (div+1)>>1;
divsum *= divsum;
int *dv = new int[256*divsum];
for (i=0; i < 256*divsum; ++i)
{
dv[i] = (i/divsum);
}
yw = yi = 0;
int **stack = new int*[div];
for(int i = 0; i < div; ++i)
{
stack[i] = new int[4];
}
int stackpointer;
int stackstart;
int *sir;
int rbs;
int r1 = radius+1;
int routsum, goutsum, boutsum, aoutsum;
int rinsum, ginsum, binsum, ainsum;
for (y = 0; y < h; ++y)
{
rinsum = ginsum = binsum = ainsum = routsum = goutsum = boutsum = aoutsum = rsum = gsum = bsum = asum = 0;
for(i = -radius; i <= radius; ++i)
{
p = pix[yi+qMin(wm,qMax(i,0))];
sir = stack[i+radius];
sir[0] = qRed(p);
sir[1] = qGreen(p);
sir[2] = qBlue(p);
sir[3] = qAlpha(p);
rbs = r1-abs(i);
rsum += sir[0]*rbs;
gsum += sir[1]*rbs;
bsum += sir[2]*rbs;
asum += sir[3]*rbs;
if (i > 0)
{
rinsum += sir[0];
ginsum += sir[1];
binsum += sir[2];
ainsum += sir[3];
}
else
{
routsum += sir[0];
goutsum += sir[1];
boutsum += sir[2];
aoutsum += sir[3];
}
}
stackpointer = radius;
for (x=0; x < w; ++x)
{
r[yi] = dv[rsum];
g[yi] = dv[gsum];
b[yi] = dv[bsum];
a[yi] = dv[asum];
rsum -= routsum;
gsum -= goutsum;
bsum -= boutsum;
asum -= aoutsum;
stackstart = stackpointer-radius+div;
sir = stack[stackstart%div];
routsum -= sir[0];
goutsum -= sir[1];
boutsum -= sir[2];
aoutsum -= sir[3];
if (y == 0)
{
vmin[x] = qMin(x+radius+1,wm);
}
p = pix[yw+vmin[x]];
sir[0] = qRed(p);
sir[1] = qGreen(p);
sir[2] = qBlue(p);
sir[3] = qAlpha(p);
rinsum += sir[0];
ginsum += sir[1];
binsum += sir[2];
ainsum += sir[3];
rsum += rinsum;
gsum += ginsum;
bsum += binsum;
asum += ainsum;
stackpointer = (stackpointer+1)%div;
sir = stack[(stackpointer)%div];
routsum += sir[0];
goutsum += sir[1];
boutsum += sir[2];
aoutsum += sir[3];
rinsum -= sir[0];
ginsum -= sir[1];
binsum -= sir[2];
ainsum -= sir[3];
++yi;
}
yw += w;
}
for (x=0; x < w; ++x)
{
rinsum = ginsum = binsum = ainsum = routsum = goutsum = boutsum = aoutsum = rsum = gsum = bsum = asum = 0;
yp =- radius * w;
for(i=-radius; i <= radius; ++i)
{
yi=qMax(0,yp)+x;
sir = stack[i+radius];
sir[0] = r[yi];
sir[1] = g[yi];
sir[2] = b[yi];
sir[3] = a[yi];
rbs = r1-abs(i);
rsum += r[yi]*rbs;
gsum += g[yi]*rbs;
bsum += b[yi]*rbs;
asum += a[yi]*rbs;
if (i > 0)
{
rinsum += sir[0];
ginsum += sir[1];
binsum += sir[2];
ainsum += sir[3];
}
else
{
routsum += sir[0];
goutsum += sir[1];
boutsum += sir[2];
aoutsum += sir[3];
}
if (i < hm)
{
yp += w;
}
}
yi = x;
stackpointer = radius;
for (y=0; y < h; ++y)
{
pix[yi] = qRgba(dv[rsum], dv[gsum], dv[bsum], dv[asum]);
rsum -= routsum;
gsum -= goutsum;
bsum -= boutsum;
asum -= aoutsum;
stackstart = stackpointer-radius+div;
sir = stack[stackstart%div];
routsum -= sir[0];
goutsum -= sir[1];
boutsum -= sir[2];
aoutsum -= sir[3];
if (x==0)
{
vmin[y] = qMin(y+r1,hm)*w;
}
p = x+vmin[y];
sir[0] = r[p];
sir[1] = g[p];
sir[2] = b[p];
sir[3] = a[p];
rinsum += sir[0];
ginsum += sir[1];
binsum += sir[2];
ainsum += sir[3];
rsum += rinsum;
gsum += ginsum;
bsum += binsum;
asum += ainsum;
stackpointer = (stackpointer+1)%div;
sir = stack[stackpointer];
routsum += sir[0];
goutsum += sir[1];
boutsum += sir[2];
aoutsum += sir[3];
rinsum -= sir[0];
ginsum -= sir[1];
binsum -= sir[2];
ainsum -= sir[3];
yi += w;
}
}
delete [] r;
delete [] g;
delete [] b;
delete [] a;
delete [] vmin;
delete [] dv;
for(int i = 0; i < div; ++i)
{
delete [] stack[i];
}
delete [] stack;
cairo_surface_mark_dirty(data);
}