void FilterFlood::render_cairo(FilterSlot &slot)
{
cairo_surface_t *input = slot.getcairo(_input);
double r = SP_RGBA32_R_F(color);
double g = SP_RGBA32_G_F(color);
double b = SP_RGBA32_B_F(color);
double a = opacity;
#if defined(HAVE_LIBLCMS1) || defined(HAVE_LIBLCMS2)
if (icc) {
guchar ru, gu, bu;
icc_color_to_sRGB(icc, &ru, &gu, &bu);
r = SP_COLOR_U_TO_F(ru);
g = SP_COLOR_U_TO_F(gu);
b = SP_COLOR_U_TO_F(bu);
}
#endif
cairo_surface_t *out = ink_cairo_surface_create_same_size(input, CAIRO_CONTENT_COLOR_ALPHA);
// Get filter primitive area in user units
Geom::Rect fp = filter_primitive_area( slot.get_units() );
// Convert to Cairo units
Geom::Rect fp_cairo = fp * slot.get_units().get_matrix_user2pb();
// Get area in slot (tile to fill)
Geom::Rect sa = slot.get_slot_area();
// Get overlap
Geom::OptRect optoverlap = intersect( fp_cairo, sa );
if( optoverlap ) {
Geom::Rect overlap = *optoverlap;
double dx = fp_cairo.min()[Geom::X] - sa.min()[Geom::X];
double dy = fp_cairo.min()[Geom::Y] - sa.min()[Geom::Y];
if( dx < 0.0 ) dx = 0.0;
if( dy < 0.0 ) dy = 0.0;
cairo_t *ct = cairo_create(out);
cairo_set_source_rgba(ct, r, g, b, a);
cairo_set_operator(ct, CAIRO_OPERATOR_SOURCE);
cairo_rectangle(ct, dx, dy, overlap.width(), overlap.height() );
cairo_fill(ct);
cairo_destroy(ct);
}
slot.set(_output, out);
cairo_surface_destroy(out);
}
Persp3D *persp3d_create_xml_element(SPDocument *document, Persp3DImpl *dup) {// if dup is given, copy the attributes over
SPDefs *defs = document->getDefs();
Inkscape::XML::Document *xml_doc = document->getReprDoc();
Inkscape::XML::Node *repr;
/* if no perspective is given, create a default one */
repr = xml_doc->createElement("inkscape:perspective");
repr->setAttribute("sodipodi:type", "inkscape:persp3d");
// Use 'user-units'
double width = document->getWidth().value("px");
double height = document->getHeight().value("px");
if( document->getRoot()->viewBox_set ) {
Geom::Rect vb = document->getRoot()->viewBox;
width = vb.width();
height = vb.height();
}
Proj::Pt2 proj_vp_x = Proj::Pt2 (0.0, height/2.0, 1.0);
Proj::Pt2 proj_vp_y = Proj::Pt2 (0.0, 1000.0, 0.0);
Proj::Pt2 proj_vp_z = Proj::Pt2 (width, height/2.0, 1.0);
Proj::Pt2 proj_origin = Proj::Pt2 (width/2.0, height/3.0, 1.0 );
if (dup) {
proj_vp_x = dup->tmat.column (Proj::X);
proj_vp_y = dup->tmat.column (Proj::Y);
proj_vp_z = dup->tmat.column (Proj::Z);
proj_origin = dup->tmat.column (Proj::W);
}
gchar *str = NULL;
str = proj_vp_x.coord_string();
repr->setAttribute("inkscape:vp_x", str);
g_free (str);
str = proj_vp_y.coord_string();
repr->setAttribute("inkscape:vp_y", str);
g_free (str);
str = proj_vp_z.coord_string();
repr->setAttribute("inkscape:vp_z", str);
g_free (str);
str = proj_origin.coord_string();
repr->setAttribute("inkscape:persp3d-origin", str);
g_free (str);
/* Append the new persp3d to defs */
defs->getRepr()->addChild(repr, NULL);
Inkscape::GC::release(repr);
return reinterpret_cast<Persp3D *>( defs->get_child_by_repr(repr) );
}
SPItem *Selection::_sizeistItem(bool sml, Selection::CompareSize compare) {
std::vector<SPItem*> const items = const_cast<Selection *>(this)->itemList();
gdouble max = sml ? 1e18 : 0;
SPItem *ist = NULL;
for ( std::vector<SPItem*>::const_iterator i=items.begin();i!=items.end(); ++i) {
Geom::OptRect obox = SP_ITEM(*i)->desktopPreferredBounds();
if (!obox || obox.isEmpty()) continue;
Geom::Rect bbox = *obox;
gdouble size = compare == 2 ? bbox.area() :
(compare == 1 ? bbox.width() : bbox.height());
size = sml ? size : size * -1;
if (size < max) {
max = size;
ist = SP_ITEM(*i);
}
}
return ist;
}
/**
* Given a Geom::Rect that may, for example, correspond to the bbox of an object,
* this function fits the canvas to that rect by resizing the canvas
* and translating the document root into position.
*/
void SPDocument::fitToRect(Geom::Rect const &rect)
{
double const w = rect.width();
double const h = rect.height();
double const old_height = sp_document_height(this);
SPUnit const &px(sp_unit_get_by_id(SP_UNIT_PX));
sp_document_set_width(this, w, &px);
sp_document_set_height(this, h, &px);
Geom::Translate const tr(Geom::Point(0, (old_height - h))
- to_2geom(rect.min()));
SP_GROUP(root)->translateChildItems(tr);
SPNamedView *nv = sp_document_namedview(this, 0);
if(nv) {
Geom::Translate tr2(-rect.min());
nv->translateGuides(tr2);
// update the viewport so the drawing appears to stay where it was
nv->scrollAllDesktops(-tr2[0], tr2[1], false);
}
}
// Apply scaling from viewbox
void SPViewBox::apply_viewbox(const Geom::Rect& in) {
/* Determine actual viewbox in viewport coordinates */
double x = 0.0;
double y = 0.0;
double width = in.width();
double height = in.height();
// std::cout << " width: " << width << " height: " << height << std::endl;
if (this->aspect_align != SP_ASPECT_NONE) {
/* Things are getting interesting */
double scalex = in.width() / this->viewBox.width();
double scaley = in.height() / this->viewBox.height();
double scale = (this->aspect_clip == SP_ASPECT_MEET) ? MIN (scalex, scaley) : MAX (scalex, scaley);
width = this->viewBox.width() * scale;
height = this->viewBox.height() * scale;
/* Now place viewbox to requested position */
switch (this->aspect_align) {
case SP_ASPECT_XMIN_YMIN:
break;
case SP_ASPECT_XMID_YMIN:
x = 0.5 * (in.width() - width);
break;
case SP_ASPECT_XMAX_YMIN:
x = 1.0 * (in.width() - width);
break;
case SP_ASPECT_XMIN_YMID:
y = 0.5 * (in.height() - height);
break;
case SP_ASPECT_XMID_YMID:
x = 0.5 * (in.width() - width);
y = 0.5 * (in.height() - height);
break;
case SP_ASPECT_XMAX_YMID:
x = 1.0 * (in.width() - width);
y = 0.5 * (in.height() - height);
break;
case SP_ASPECT_XMIN_YMAX:
y = 1.0 * (in.height() - height);
break;
case SP_ASPECT_XMID_YMAX:
x = 0.5 * (in.width() - width);
y = 1.0 * (in.height() - height);
break;
case SP_ASPECT_XMAX_YMAX:
x = 1.0 * (in.width() - width);
y = 1.0 * (in.height() - height);
break;
default:
break;
}
}
/* Viewbox transform from scale and position */
Geom::Affine q;
q[0] = width / this->viewBox.width();
q[1] = 0.0;
q[2] = 0.0;
q[3] = height / this->viewBox.height();
q[4] = x - q[0] * this->viewBox.left();
q[5] = y - q[3] * this->viewBox.top();
// std::cout << " q\n" << q << std::endl;
/* Append viewbox transformation */
this->c2p = q * this->c2p;
}
void FilterTile::render_cairo(FilterSlot &slot)
{
// FIX ME!
static bool tile_warning = false;
if (!tile_warning) {
g_warning("Renderer for feTile has non-optimal implementation, expect slowness and bugs.");
tile_warning = true;
}
// Fixing isn't so easy as the Inkscape renderer breaks the canvas into "rendering" tiles for
// faster rendering. (The "rendering" tiles are not the same as the tiles in this primitive.)
// Only if the the feTile tile source falls inside the current "rendering" tile will the tile
// image be available.
// This input source contains only the "rendering" tile.
cairo_surface_t *in = slot.getcairo(_input);
// For debugging
// static int i = 0;
// ++i;
// std::stringstream filename;
// filename << "dump." << i << ".png";
// cairo_surface_write_to_png( in, filename.str().c_str() );
// This is the feTile source area as determined by the input primitive area (see SVG spec).
Geom::Rect tile_area = slot.get_primitive_area(_input);
if( tile_area.width() == 0.0 || tile_area.height() == 0.0 ) {
slot.set(_output, in);
std::cerr << "FileTile::render_cairo: tile has zero width or height" << std::endl;
} else {
cairo_surface_t *out = ink_cairo_surface_create_identical(in);
// color_interpolation_filters for out same as in.
copy_cairo_surface_ci(in, out);
cairo_t *ct = cairo_create(out);
// The rectangle of the "rendering" tile.
Geom::Rect sa = slot.get_slot_area();
Geom::Affine trans = slot.get_units().get_matrix_user2pb();
// Create feTile tile ----------------
// Get tile area in pixbuf units (tile transformed).
Geom::Rect tt = tile_area * trans;
// Shift between "rendering" tile and feTile tile
Geom::Point shift = sa.min() - tt.min();
// Create feTile tile surface
cairo_surface_t *tile = cairo_surface_create_similar(in, cairo_surface_get_content(in),
tt.width(), tt.height());
cairo_t *ct_tile = cairo_create(tile);
cairo_set_source_surface(ct_tile, in, shift[Geom::X], shift[Geom::Y]);
cairo_paint(ct_tile);
// Paint tiles ------------------
// For debugging
// std::stringstream filename;
// filename << "tile." << i << ".png";
// cairo_surface_write_to_png( tile, filename.str().c_str() );
// Determine number of feTile rows and columns
Geom::Rect pr = filter_primitive_area( slot.get_units() );
int tile_cols = ceil( pr.width() / tile_area.width() );
int tile_rows = ceil( pr.height() / tile_area.height() );
// Do tiling (TO DO: restrict to slot area.)
for( int col=0; col < tile_cols; ++col ) {
for( int row=0; row < tile_rows; ++row ) {
Geom::Point offset( col*tile_area.width(), row*tile_area.height() );
offset *= trans;
offset[Geom::X] -= trans[4];
offset[Geom::Y] -= trans[5];
cairo_set_source_surface(ct, tile, offset[Geom::X], offset[Geom::Y]);
cairo_paint(ct);
}
}
slot.set(_output, out);
// Clean up
cairo_destroy(ct);
cairo_surface_destroy(out);
cairo_destroy(ct_tile);
cairo_surface_destroy(tile);
}
}
ExportResult sp_export_png_file(SPDocument *doc, gchar const *filename,
Geom::Rect const &area,
unsigned long width, unsigned long height, double xdpi, double ydpi,
unsigned long bgcolor,
unsigned (*status)(float, void *),
void *data, bool force_overwrite,
GSList *items_only)
{
g_return_val_if_fail(doc != NULL, EXPORT_ERROR);
g_return_val_if_fail(filename != NULL, EXPORT_ERROR);
g_return_val_if_fail(width >= 1, EXPORT_ERROR);
g_return_val_if_fail(height >= 1, EXPORT_ERROR);
g_return_val_if_fail(!area.hasZeroArea(), EXPORT_ERROR);
if (!force_overwrite && !sp_ui_overwrite_file(filename)) {
// aborted overwrite
return EXPORT_ABORTED;
}
doc->ensureUpToDate();
/* Calculate translation by transforming to document coordinates (flipping Y)*/
Geom::Point translation = Geom::Point(-area[Geom::X][0], area[Geom::Y][1] - doc->getHeight().value("px"));
/* This calculation is only valid when assumed that (x0,y0)= area.corner(0) and (x1,y1) = area.corner(2)
* 1) a[0] * x0 + a[2] * y1 + a[4] = 0.0
* 2) a[1] * x0 + a[3] * y1 + a[5] = 0.0
* 3) a[0] * x1 + a[2] * y1 + a[4] = width
* 4) a[1] * x0 + a[3] * y0 + a[5] = height
* 5) a[1] = 0.0;
* 6) a[2] = 0.0;
*
* (1,3) a[0] * x1 - a[0] * x0 = width
* a[0] = width / (x1 - x0)
* (2,4) a[3] * y0 - a[3] * y1 = height
* a[3] = height / (y0 - y1)
* (1) a[4] = -a[0] * x0
* (2) a[5] = -a[3] * y1
*/
Geom::Affine const affine(Geom::Translate(translation)
* Geom::Scale(width / area.width(),
height / area.height()));
//SP_PRINT_MATRIX("SVG2PNG", &affine);
struct SPEBP ebp;
ebp.width = width;
ebp.height = height;
ebp.background = bgcolor;
/* Create new drawing */
Inkscape::Drawing drawing;
drawing.setExact(true); // export with maximum blur rendering quality
unsigned const dkey = SPItem::display_key_new(1);
// Create ArenaItems and set transform
drawing.setRoot(doc->getRoot()->invoke_show(drawing, dkey, SP_ITEM_SHOW_DISPLAY));
drawing.root()->setTransform(affine);
ebp.drawing = &drawing;
// We show all and then hide all items we don't want, instead of showing only requested items,
// because that would not work if the shown item references something in defs
if (items_only) {
hide_other_items_recursively(doc->getRoot(), items_only, dkey);
}
ebp.status = status;
ebp.data = data;
bool write_status = false;;
ebp.sheight = 64;
ebp.px = g_try_new(guchar, 4 * ebp.sheight * width);
if (ebp.px) {
write_status = sp_png_write_rgba_striped(doc, filename, width, height, xdpi, ydpi, sp_export_get_rows, &ebp);
g_free(ebp.px);
}
// Hide items, this releases arenaitem
doc->getRoot()->invoke_hide(dkey);
return write_status ? EXPORT_OK : EXPORT_ERROR;
}
/**
* Creates a surface with the given logical and physical extents.
* When a drawing context is created for this surface, its pixels
* will cover the area under the given rectangle. IT will contain
* the number of pixels specified by the second argument.
* @param logbox Logical extents of the surface
* @param pixdims Pixel dimensions of the surface.
*/
DrawingSurface::DrawingSurface(Geom::Rect const &logbox, Geom::IntPoint const &pixdims)
: _surface(NULL)
, _origin(logbox.min())
, _scale(pixdims[X] / logbox.width(), pixdims[Y] / logbox.height())
, _pixels(pixdims)
{}
void FilterImage::render_cairo(FilterSlot &slot)
{
if (!feImageHref)
return;
//cairo_surface_t *input = slot.getcairo(_input);
// Viewport is filter primitive area (in user coordinates).
// Note: viewport calculation in non-trivial. Do not rely
// on get_matrix_primitiveunits2pb().
Geom::Rect vp = filter_primitive_area( slot.get_units() );
slot.set_primitive_area(_output, vp); // Needed for tiling
double feImageX = vp.min()[Geom::X];
double feImageY = vp.min()[Geom::Y];
double feImageWidth = vp.width();
double feImageHeight = vp.height();
// feImage is suppose to use the same parameters as a normal SVG image.
// If a width or height is set to zero, the image is not suppose to be displayed.
// This does not seem to be what Firefox or Opera does, nor does the W3C displacement
// filter test expect this behavior. If the width and/or height are zero, we use
// the width and height of the object bounding box.
Geom::Affine m = slot.get_units().get_matrix_user2filterunits().inverse();
Geom::Point bbox_00 = Geom::Point(0,0) * m;
Geom::Point bbox_w0 = Geom::Point(1,0) * m;
Geom::Point bbox_0h = Geom::Point(0,1) * m;
double bbox_width = Geom::distance(bbox_00, bbox_w0);
double bbox_height = Geom::distance(bbox_00, bbox_0h);
if( feImageWidth == 0 ) feImageWidth = bbox_width;
if( feImageHeight == 0 ) feImageHeight = bbox_height;
// Internal image, like <use>
if (from_element) {
if (!SVGElem) return;
// TODO: do not recreate the rendering tree every time
// TODO: the entire thing is a hack, we should give filter primitives an "update" method
// like the one for DrawingItems
document->ensureUpToDate();
Drawing drawing;
Geom::OptRect optarea = SVGElem->visualBounds();
if (!optarea) return;
unsigned const key = SPItem::display_key_new(1);
DrawingItem *ai = SVGElem->invoke_show(drawing, key, SP_ITEM_SHOW_DISPLAY);
if (!ai) {
g_warning("feImage renderer: error creating DrawingItem for SVG Element");
return;
}
drawing.setRoot(ai);
Geom::Rect area = *optarea;
Geom::Affine user2pb = slot.get_units().get_matrix_user2pb();
/* FIXME: These variables are currently unused. Why were they calculated?
double scaleX = feImageWidth / area.width();
double scaleY = feImageHeight / area.height();
*/
Geom::Rect sa = slot.get_slot_area();
cairo_surface_t *out = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
sa.width(), sa.height());
Inkscape::DrawingContext dc(out, sa.min());
dc.transform(user2pb); // we are now in primitive units
dc.translate(feImageX, feImageY);
// dc.scale(scaleX, scaleY); No scaling should be done
Geom::IntRect render_rect = area.roundOutwards();
// dc.translate(render_rect.min()); This seems incorrect
// Update to renderable state
drawing.update(render_rect);
drawing.render(dc, render_rect);
SVGElem->invoke_hide(key);
// For the moment, we'll assume that any image is in sRGB color space
set_cairo_surface_ci(out, SP_CSS_COLOR_INTERPOLATION_SRGB);
slot.set(_output, out);
cairo_surface_destroy(out);
return;
}
// External image, like <image>
if (!image && !broken_ref) {
broken_ref = true;
/* TODO: If feImageHref is absolute, then use that (preferably handling the
* case that it's not a file URI). Otherwise, go up the tree looking
* for an xml:base attribute, and use that as the base URI for resolving
* the relative feImageHref URI. Otherwise, if document->base is valid,
* then use that as the base URI. Otherwise, use feImageHref directly
* (i.e. interpreting it as relative to our current working directory).
* (See http://www.w3.org/TR/xmlbase/#resolution .) */
gchar *fullname = feImageHref;
if ( !g_file_test( fullname, G_FILE_TEST_EXISTS ) ) {
// Try to load from relative postion combined with document base
if( document ) {
fullname = g_build_filename( document->getBase(), feImageHref, NULL );
}
}
if ( !g_file_test( fullname, G_FILE_TEST_EXISTS ) ) {
// Should display Broken Image png.
g_warning("FilterImage::render: Can not find: %s", feImageHref );
return;
}
image = Inkscape::Pixbuf::create_from_file(fullname);
if( fullname != feImageHref ) g_free( fullname );
if ( !image ) {
g_warning("FilterImage::render: failed to load image: %s", feImageHref);
return;
}
broken_ref = false;
}
if (broken_ref) {
return;
}
cairo_surface_t *image_surface = image->getSurfaceRaw();
Geom::Rect sa = slot.get_slot_area();
cairo_surface_t *out = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
sa.width(), sa.height());
// For the moment, we'll assume that any image is in sRGB color space
// set_cairo_surface_ci(out, SP_CSS_COLOR_INTERPOLATION_SRGB);
// This seemed like a sensible thing to do but it breaks filters-displace-01-f.svg
cairo_t *ct = cairo_create(out);
cairo_translate(ct, -sa.min()[Geom::X], -sa.min()[Geom::Y]);
// now ct is in pb coordinates, note the feWidth etc. are in user units
ink_cairo_transform(ct, slot.get_units().get_matrix_user2pb());
// now ct is in the coordinates of feImageX etc.
// Now that we have the viewport, we must map image inside.
// Partially copied from sp-image.cpp.
// Do nothing if preserveAspectRatio is "none".
if( aspect_align != SP_ASPECT_NONE ) {
// Check aspect ratio of image vs. viewport
double feAspect = feImageHeight/feImageWidth;
double aspect = (double)image->height()/(double)image->width();
bool ratio = (feAspect < aspect);
double ax, ay; // Align side
switch( aspect_align ) {
case SP_ASPECT_XMIN_YMIN:
ax = 0.0;
ay = 0.0;
break;
case SP_ASPECT_XMID_YMIN:
ax = 0.5;
ay = 0.0;
break;
case SP_ASPECT_XMAX_YMIN:
ax = 1.0;
ay = 0.0;
break;
case SP_ASPECT_XMIN_YMID:
ax = 0.0;
ay = 0.5;
break;
case SP_ASPECT_XMID_YMID:
ax = 0.5;
ay = 0.5;
break;
case SP_ASPECT_XMAX_YMID:
ax = 1.0;
ay = 0.5;
break;
case SP_ASPECT_XMIN_YMAX:
ax = 0.0;
ay = 1.0;
break;
case SP_ASPECT_XMID_YMAX:
ax = 0.5;
ay = 1.0;
break;
case SP_ASPECT_XMAX_YMAX:
ax = 1.0;
ay = 1.0;
break;
default:
ax = 0.0;
ay = 0.0;
break;
}
if( aspect_clip == SP_ASPECT_SLICE ) {
// image clipped by viewbox
if( ratio ) {
// clip top/bottom
feImageY -= ay * (feImageWidth * aspect - feImageHeight);
feImageHeight = feImageWidth * aspect;
} else {
// clip sides
feImageX -= ax * (feImageHeight / aspect - feImageWidth);
feImageWidth = feImageHeight / aspect;
}
} else {
// image fits into viewbox
if( ratio ) {
// fit to height
feImageX += ax * (feImageWidth - feImageHeight / aspect );
feImageWidth = feImageHeight / aspect;
} else {
// fit to width
feImageY += ay * (feImageHeight - feImageWidth * aspect);
feImageHeight = feImageWidth * aspect;
}
}
}
double scaleX = feImageWidth / image->width();
double scaleY = feImageHeight / image->height();
cairo_translate(ct, feImageX, feImageY);
cairo_scale(ct, scaleX, scaleY);
cairo_set_source_surface(ct, image_surface, 0, 0);
cairo_paint(ct);
cairo_destroy(ct);
slot.set(_output, out);
}
// Apply scaling from viewbox
void SPViewBox::apply_viewbox(const Geom::Rect& in, double scale_none) {
/* Determine actual viewbox in viewport coordinates */
// scale_none is the scale that would apply if the viewbox and page size are same size
// it is passed here because it is a double-precision variable, while 'in' is originally float
double x = 0.0;
double y = 0.0;
double scale_x = in.width() / this->viewBox.width();
double scale_y = in.height() / this->viewBox.height();
double scale_uniform = 1.0; // used only if scaling is uniform
if (Geom::are_near(scale_x / scale_y, 1.0, Geom::EPSILON)) {
// scaling is already uniform, reduce numerical error
scale_uniform = (scale_x + scale_y)/2.0;
if (Geom::are_near(scale_uniform / scale_none, 1.0, Geom::EPSILON))
scale_uniform = scale_none; // objects are same size, reduce numerical error
scale_x = scale_uniform;
scale_y = scale_uniform;
} else if (this->aspect_align != SP_ASPECT_NONE) {
// scaling is not uniform, but force it to be
scale_uniform = (this->aspect_clip == SP_ASPECT_MEET) ? MIN (scale_x, scale_y) : MAX (scale_x, scale_y);
scale_x = scale_uniform;
scale_y = scale_uniform;
double width = this->viewBox.width() * scale_uniform;
double height = this->viewBox.height() * scale_uniform;
/* Now place viewbox to requested position */
switch (this->aspect_align) {
case SP_ASPECT_XMIN_YMIN:
break;
case SP_ASPECT_XMID_YMIN:
x = 0.5 * (in.width() - width);
break;
case SP_ASPECT_XMAX_YMIN:
x = 1.0 * (in.width() - width);
break;
case SP_ASPECT_XMIN_YMID:
y = 0.5 * (in.height() - height);
break;
case SP_ASPECT_XMID_YMID:
x = 0.5 * (in.width() - width);
y = 0.5 * (in.height() - height);
break;
case SP_ASPECT_XMAX_YMID:
x = 1.0 * (in.width() - width);
y = 0.5 * (in.height() - height);
break;
case SP_ASPECT_XMIN_YMAX:
y = 1.0 * (in.height() - height);
break;
case SP_ASPECT_XMID_YMAX:
x = 0.5 * (in.width() - width);
y = 1.0 * (in.height() - height);
break;
case SP_ASPECT_XMAX_YMAX:
x = 1.0 * (in.width() - width);
y = 1.0 * (in.height() - height);
break;
default:
break;
}
}
/* Viewbox transform from scale and position */
Geom::Affine q;
q[0] = scale_x;
q[1] = 0.0;
q[2] = 0.0;
q[3] = scale_y;
q[4] = x - scale_x * this->viewBox.left();
q[5] = y - scale_y * this->viewBox.top();
// std::cout << " q\n" << q << std::endl;
/* Append viewbox transformation */
this->c2p = q * this->c2p;
}