void PdfCache::render(cairo_t * cr, XojPopplerPage * popplerPage, double zoom) {
XOJ_CHECK_TYPE(PdfCache);
g_mutex_lock(this->renderMutex);
this->setZoom(zoom);
cairo_surface_t * img = lookup(popplerPage);
if (img == NULL) {
img = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, popplerPage->getWidth() * this->zoom, popplerPage->getHeight() * this->zoom);
cairo_t * cr2 = cairo_create(img);
cairo_scale(cr2, this->zoom, this->zoom);
popplerPage->render(cr2, false);
cairo_destroy(cr2);
cache(popplerPage, img);
}
cairo_matrix_t mOriginal;
cairo_matrix_t mScaled;
cairo_get_matrix(cr, &mOriginal);
cairo_get_matrix(cr, &mScaled);
mScaled.xx = 1;
mScaled.yy = 1;
mScaled.xy = 0;
mScaled.yx = 0;
cairo_set_matrix(cr, &mScaled);
cairo_set_source_surface(cr, img, 0, 0);
cairo_paint(cr);
cairo_set_matrix(cr, &mOriginal);
g_mutex_unlock(this->renderMutex);
}
void address_histogram::render_bars(cairo_t *cr, const plot::bounds_t &bounds)
{
if(top_addrs.size() < 1 || top_addrs.at(0).count == 0) {
return;
}
cairo_matrix_t original_matrix;
cairo_get_matrix(cr, &original_matrix);
cairo_translate(cr, bounds.x, bounds.y);
double offset_unit = bounds.width / top_addrs.size();
double bar_width = offset_unit / bar_space_factor;
double space_width = offset_unit - bar_width;
uint64_t greatest = top_addrs.at(0).count;
int index = 0;
for(vector<iptree::addr_elem>::const_iterator it = top_addrs.begin();
it != top_addrs.end(); it++) {
double bar_height = (((double) it->count) / ((double) greatest)) * bounds.height;
if(bar_height > 0) {
// bar
double bar_x = index * offset_unit + space_width;
double bar_y = bounds.height - bar_height;
cairo_set_source_rgb(cr, bar_color.r, bar_color.g, bar_color.b);
cairo_rectangle(cr, bar_x, bar_y, bar_width, bar_height);
cairo_fill(cr);
// bar label
std::string label = it->str();
// IP6 labels are half size since they're (potentially) much longer
if(it->is4()) {
cairo_set_font_size(cr, bar_label_font_size);
}
else {
cairo_set_font_size(cr, bar_label_font_size / 2.0);
}
cairo_text_extents_t label_extents;
cairo_text_extents(cr, label.c_str(), &label_extents);
cairo_move_to(cr, bar_x + bar_width / 2.0, bar_y);
cairo_matrix_t unrotated_matrix;
cairo_get_matrix(cr, &unrotated_matrix);
cairo_rotate(cr, -M_PI / 4.0);
cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
cairo_show_text(cr, label.c_str());
cairo_set_matrix(cr, &unrotated_matrix);
}
index++;
}
cairo_set_matrix(cr, &original_matrix);
}
void match(unsigned int position)
{
// cairo_set_line_cap(cairoOut, CAIRO_LINE_CAP_ROUND);
m_sensorReference.seek(position);
cairo_matrix_t m1;
cairo_get_matrix(cairoOut, &m1);
cairo_identity_matrix(cairoOut);
cairo_set_source_surface(cairoOut, cairo_get_target(cairoMap), 0., 0.);
cairo_paint(cairoOut);
cairo_set_matrix(cairoOut, &m1);
// cairo_set_line_width(cairoOut, 1./(2.*scaleFactor));
std::vector<InterestPoint *> pointsLocal(m_pointsReference[position].size());
const LaserReading* lreadReference = dynamic_cast<const LaserReading*>(m_sensorReference.current());
for(unsigned int j = 0; j < m_pointsReference[position].size(); j++){
InterestPoint * point = new InterestPoint(*m_pointsReference[position][j]);
point->setPosition(lreadReference->getLaserPose().ominus(point->getPosition()));
pointsLocal[j] = point;
}
for(unsigned int i = 0; i < m_pointsReference.size(); i++){
if(i == position) {
continue;
}
OrientedPoint2D transform;
std::vector< std::pair<InterestPoint*, InterestPoint* > > correspondences;
double result = m_ransac->matchSets(m_pointsReference[i], pointsLocal, transform, correspondences);
if(correspondences.size() >= corresp) {
cairo_matrix_t m;
cairo_get_matrix(cairoOut, &m);
cairo_translate(cairoOut, transform.x, transform.y);
cairo_rotate(cairoOut, transform.theta);
cairo_set_source_rgba(cairoOut, 1., 0., 0., 1. - result/(acceptanceSigma * acceptanceSigma * 5.99 * double(pointsLocal.size())));
cairo_move_to(cairoOut, 0., -0.3);
cairo_line_to(cairoOut, 0.6, 0.);
cairo_line_to(cairoOut, 0., 0.3);
cairo_close_path(cairoOut);
cairo_fill(cairoOut);
cairo_set_matrix(cairoOut, &m);
}
}
cairo_matrix_t m;
cairo_get_matrix(cairoOut, &m);
cairo_translate(cairoOut, lreadReference->getLaserPose().x, lreadReference->getLaserPose().y);
cairo_rotate(cairoOut, lreadReference->getLaserPose().theta);
cairo_set_source_rgba(cairoOut, 0., 0., 1., 1.);
cairo_move_to(cairoOut, 0., -0.3);
cairo_line_to(cairoOut, 0.6, 0.);
cairo_line_to(cairoOut, 0., 0.3);
cairo_close_path(cairoOut);
cairo_stroke(cairoOut);
cairo_set_matrix(cairoOut, &m);
// cairo_show_page(cairoOut);
}
CAMLprim value
ml_cairo_get_matrix (value v_cr)
{
#ifndef ARCH_ALIGN_DOUBLE
CAMLparam1(v_cr);
value v = cairo_matrix_alloc();
cairo_get_matrix (cairo_t_val (v_cr), cairo_matrix_t_val (v));
CAMLreturn(v);
#else
cairo_matrix_t mat;
cairo_get_matrix (cairo_t_val (v_cr), &mat);
return ml_convert_cairo_matrix_out (&mat);
#endif
}
/**
* Renders the SVG, performing any necessary transformations.
*/
void graphic_render (Graphic* self, cairo_t* context) {
cairo_matrix_t oldMatrix = {0};
cairo_t* _tmp0_ = NULL;
cairo_matrix_t _tmp1_ = {0};
cairo_t* _tmp2_ = NULL;
gint _tmp3_ = 0;
gint _tmp4_ = 0;
RsvgHandle* _tmp5_ = NULL;
cairo_t* _tmp6_ = NULL;
cairo_t* _tmp7_ = NULL;
cairo_matrix_t _tmp8_ = {0};
g_return_if_fail (self != NULL);
g_return_if_fail (context != NULL);
_tmp0_ = context;
cairo_get_matrix (_tmp0_, &_tmp1_);
oldMatrix = _tmp1_;
_tmp2_ = context;
_tmp3_ = self->priv->xCentre;
_tmp4_ = self->priv->yCentre;
cairo_translate (_tmp2_, (gdouble) (-_tmp3_), (gdouble) (-_tmp4_));
_tmp5_ = self->priv->svgHandle;
_tmp6_ = context;
rsvg_handle_render_cairo (_tmp5_, _tmp6_);
_tmp7_ = context;
_tmp8_ = oldMatrix;
cairo_set_matrix (_tmp7_, &_tmp8_);
}
void wtk_widget_render(wtk_widget_t *widget, cairo_t *context, int focused)
{
cllist_t *_w;
cairo_matrix_t m;
cairo_get_matrix(context, &m);
cairo_translate(context, widget->rect.x, widget->rect.y);
cairo_save(context);
//if (focused)
// printf("renderfocus\n");
if (widget->callbacks.paint)
widget->callbacks.paint(widget, context, focused);
else {
cairo_rectangle(context, 0, 0, widget->rect.w, widget->rect.h);
cairo_set_source_rgb(context, ((double)0xF6) / 255.0, ((double)0xF4) / 255.0, ((double)0xF2) / 255.0);
cairo_fill(context);
}
cairo_restore(context);
for (_w = widget->children.next; _w != &(widget->children); _w = _w->next)
wtk_widget_render((wtk_widget_t *) _w, context, widget->focused == (wtk_widget_t *) _w);
cairo_set_matrix(context, &m);
widget->flags &= ~WTK_WIDGET_FLAG_DIRTY;
}
static PyObject *
pycairo_get_matrix (PycairoContext *o)
{
cairo_matrix_t matrix;
cairo_get_matrix (o->ctx, &matrix);
return PycairoMatrix_FromMatrix (&matrix);
}
TransformationMatrix GraphicsContext::getCTM() const
{
cairo_t* cr = platformContext();
cairo_matrix_t m;
cairo_get_matrix(cr, &m);
return m;
}
gfxMatrix
gfxContext::CurrentMatrix() const
{
cairo_matrix_t mat;
cairo_get_matrix(mCairo, &mat);
return gfxMatrix(*reinterpret_cast<gfxMatrix*>(&mat));
}
void
GeometryGroup::Draw (cairo_t *cr)
{
Transform *transform = GetTransform ();
cairo_matrix_t saved;
cairo_get_matrix (cr, &saved);
if (transform) {
cairo_matrix_t matrix;
transform->GetTransform (&matrix);
cairo_transform (cr, &matrix);
}
GeometryCollection *children = GetChildren ();
Geometry *geometry;
// GeometryGroup is used for Clip (as a Geometry) so Fill (normally setting the fill rule) is never called
cairo_set_fill_rule (cr, convert_fill_rule (GetFillRule ()));
int children_count = children->GetCount ();
for (int i = 0; i < children_count; i++) {
geometry = children->GetValueAt (i)->AsGeometry ();
geometry->Draw (cr);
}
cairo_set_matrix (cr, &saved);
}
static void cairogen_ellipse(GVJ_t * job, pointf * A, int filled)
{
obj_state_t *obj = job->obj;
cairo_t *cr = (cairo_t *) job->context;
cairo_matrix_t matrix;
double rx, ry;
cairogen_set_penstyle(job, cr);
cairo_get_matrix(cr, &matrix);
rx = A[1].x - A[0].x;
ry = A[1].y - A[0].y;
#define RMIN 0.01
if (rx < RMIN) rx = RMIN;
if (ry < RMIN) ry = RMIN;
cairo_translate(cr, A[0].x, -A[0].y);
cairo_scale(cr, rx, ry);
cairo_move_to(cr, 1., 0.);
cairo_arc(cr, 0., 0., 1., 0., 2 * M_PI);
cairo_set_matrix(cr, &matrix);
if (filled == GRADIENT || filled == (RGRADIENT)) {
cairo_gradient_fill (cr, obj, filled, A, 2);
}
else if (filled) {
cairogen_set_color(cr, &(obj->fillcolor));
cairo_fill_preserve(cr);
}
cairogen_set_color(cr, &(obj->pencolor));
cairo_stroke(cr);
}
explicit font_fc(cairo_t* cairo, FcPattern* pattern, double offset, double dpi_x, double dpi_y) : font(cairo, offset), m_pattern(pattern) {
cairo_matrix_t fm;
cairo_matrix_t ctm;
cairo_matrix_init_scale(&fm, size(dpi_x), size(dpi_y));
cairo_get_matrix(m_cairo, &ctm);
auto fontface = cairo_ft_font_face_create_for_pattern(m_pattern);
auto opts = cairo_font_options_create();
m_scaled = cairo_scaled_font_create(fontface, &fm, &ctm, opts);
cairo_font_options_destroy(opts);
cairo_font_face_destroy(fontface);
auto status = cairo_scaled_font_status(m_scaled);
if (status != CAIRO_STATUS_SUCCESS) {
throw application_error(sstream() << "cairo_scaled_font_create(): " << cairo_status_to_string(status));
}
auto lock = make_unique<utils::ft_face_lock>(m_scaled);
auto face = static_cast<FT_Face>(*lock);
if (FT_Select_Charmap(face, FT_ENCODING_UNICODE) == FT_Err_Ok) {
return;
} else if (FT_Select_Charmap(face, FT_ENCODING_BIG5) == FT_Err_Ok) {
return;
} else if (FT_Select_Charmap(face, FT_ENCODING_SJIS) == FT_Err_Ok) {
return;
}
lock.reset();
}
HDC GraphicsContext::getWindowsContext(const IntRect& dstRect, bool supportAlphaBlend, bool mayCreateBitmap)
{
// FIXME: We aren't really doing anything with the 'mayCreateBitmap' flag. This needs
// to be addressed.
if (dstRect.isEmpty())
return 0;
// This is probably wrong, and definitely out of date. Pulled from old SVN
cairo_surface_t* surface = cairo_get_target(platformContext());
HDC hdc = cairo_win32_surface_get_dc(surface);
SaveDC(hdc);
// FIXME: We need to make sure a clip is really set on the HDC.
// Call SetWorldTransform to honor the current Cairo transform.
SetGraphicsMode(hdc, GM_ADVANCED); // We need this call for themes to honor world transforms.
cairo_matrix_t mat;
cairo_get_matrix(platformContext(), &mat);
XFORM xform;
xform.eM11 = mat.xx;
xform.eM12 = mat.xy;
xform.eM21 = mat.yx;
xform.eM22 = mat.yy;
xform.eDx = mat.x0;
xform.eDy = mat.y0;
::SetWorldTransform(hdc, &xform);
return hdc;
}
IntPoint GraphicsContext::origin()
{
cairo_matrix_t matrix;
cairo_t* cr = m_data->cr;
cairo_get_matrix(cr, &matrix);
return IntPoint(static_cast<int>(matrix.x0), static_cast<int>(matrix.y0));
}
void CairoDevice::SetOrigin( float x, float y )
{
cairo_matrix_t matrix;
cairo_get_matrix (fNativeDevice, &matrix);
matrix.x0 = x;
matrix.y0 = y;
cairo_set_matrix (fNativeDevice, &matrix);
}
void
gfxContext::NudgeCurrentMatrixToIntegers()
{
cairo_matrix_t mat;
cairo_get_matrix(mCairo, &mat);
gfxMatrix(*reinterpret_cast<gfxMatrix*>(&mat)).NudgeToIntegers();
cairo_set_matrix(mCairo, &mat);
}
static VALUE
cr_get_matrix (VALUE self)
{
cairo_matrix_t matrix;
cairo_get_matrix (_SELF, &matrix);
cr_check_status (_SELF);
return CRMATRIX2RVAL (&matrix);
}
static int
cr_get_matrix (lua_State *L) {
cairo_t **obj = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_CONTEXT);
cairo_matrix_t mat;
cairo_get_matrix(*obj, &mat);
create_lua_matrix(L, &mat);
return 1;
}
//--------------------------------------------
// transformations
//our openGL wrappers
void ofCairoRenderer::pushMatrix(){
if(!surface || !cr) return;
cairo_get_matrix(cr,&tmpMatrix);
matrixStack.push(tmpMatrix);
if(!b3D) return;
modelViewStack.push(modelView);
}
value lime_cairo_get_matrix (value handle) {
cairo_matrix_t cm;
cairo_get_matrix ((cairo_t*)val_data (handle), &cm);
Matrix3 mat3 = Matrix3 (cm.xx, cm.yx, cm.xy, cm.yy, cm.x0, cm.y0);
return mat3.Value ();
}
value lime_cairo_get_matrix (double handle) {
cairo_matrix_t cm;
cairo_get_matrix ((cairo_t*)(intptr_t)handle, &cm);
Matrix3 mat3 = Matrix3 (cm.xx, cm.yx, cm.xy, cm.yy, cm.x0, cm.y0);
return mat3.Value ();
}
static bool read_tiles(cairo_t *cr,
struct _openslide_level *level,
struct _openslide_grid *grid,
struct region *region,
read_tiles_callback_fn callback,
void *arg,
GError **err) {
//g_debug("offset: %g %g, advance: %g %g", region->offset_x, region->offset_y, grid->tile_advance_x, grid->tile_advance_y);
if (fabs(region->offset_x) >= grid->tile_advance_x) {
g_set_error(err, OPENSLIDE_ERROR, OPENSLIDE_ERROR_FAILED,
"internal error: fabs(offset_x) >= tile_advance_x");
return false;
}
if (fabs(region->offset_y) >= grid->tile_advance_y) {
g_set_error(err, OPENSLIDE_ERROR, OPENSLIDE_ERROR_FAILED,
"internal error: fabs(offset_y) >= tile_advance_y");
return false;
}
// cairo_set_source_rgb(cr, 0, 1, 0);
// cairo_paint(cr);
//g_debug("offset: %d %d", region->offset_x, region->offset_y);
//g_debug("start: %"PRId64" %"PRId64, region->start_tile_x, region->start_tile_y);
//g_debug("end: %"PRId64" %"PRId64, region->end_tile_x, region->end_tile_y);
cairo_matrix_t matrix;
cairo_get_matrix(cr, &matrix);
int64_t tile_y = region->end_tile_y - 1;
while (tile_y >= region->start_tile_y) {
double translate_y = ((tile_y - region->start_tile_y) *
grid->tile_advance_y) - region->offset_y;
int64_t tile_x = region->end_tile_x - 1;
while (tile_x >= region->start_tile_x) {
double translate_x = ((tile_x - region->start_tile_x) *
grid->tile_advance_x) - region->offset_x;
// g_debug("read_tiles %"PRId64" %"PRId64, tile_x, tile_y);
cairo_translate(cr, translate_x, translate_y);
bool success = callback(grid, region, cr,
level, tile_x, tile_y,
arg, err);
cairo_set_matrix(cr, &matrix);
if (!success) {
return false;
}
tile_x--;
}
tile_y--;
}
return true;
}
static void
goo_canvas_polyline_compute_bounds (GooCanvasPolyline *polyline,
cairo_t *cr,
GooCanvasBounds *bounds)
{
GooCanvasItemSimple *simple = (GooCanvasItemSimple*) polyline;
GooCanvasItemSimpleData *simple_data = simple->simple_data;
GooCanvasPolylineData *polyline_data = polyline->polyline_data;
GooCanvasBounds tmp_bounds;
cairo_matrix_t transform;
if (polyline_data->num_points == 0)
{
bounds->x1 = bounds->x2 = bounds->y1 = bounds->y2 = 0.0;
return;
}
/* Use the identity matrix to get the bounds completely in user space. */
cairo_get_matrix (cr, &transform);
cairo_identity_matrix (cr);
goo_canvas_polyline_create_path (polyline, cr);
goo_canvas_item_simple_get_path_bounds (simple, cr, bounds);
/* Add on the arrows, if required. */
if ((polyline_data->start_arrow || polyline_data->end_arrow)
&& polyline_data->num_points >= 2)
{
/* We use the stroke pattern to match the style of the line. */
goo_canvas_style_set_stroke_options (simple_data->style, cr);
if (polyline_data->start_arrow)
{
goo_canvas_polyline_create_start_arrow_path (polyline, cr);
cairo_fill_extents (cr, &tmp_bounds.x1, &tmp_bounds.y1,
&tmp_bounds.x2, &tmp_bounds.y2);
bounds->x1 = MIN (bounds->x1, tmp_bounds.x1);
bounds->y1 = MIN (bounds->y1, tmp_bounds.y1);
bounds->x2 = MAX (bounds->x2, tmp_bounds.x2);
bounds->y2 = MAX (bounds->y2, tmp_bounds.y2);
}
if (polyline_data->end_arrow)
{
goo_canvas_polyline_create_end_arrow_path (polyline, cr);
cairo_fill_extents (cr, &tmp_bounds.x1, &tmp_bounds.y1,
&tmp_bounds.x2, &tmp_bounds.y2);
bounds->x1 = MIN (bounds->x1, tmp_bounds.x1);
bounds->y1 = MIN (bounds->y1, tmp_bounds.y1);
bounds->x2 = MAX (bounds->x2, tmp_bounds.x2);
bounds->y2 = MAX (bounds->y2, tmp_bounds.y2);
}
}
cairo_set_matrix (cr, &transform);
}
//----------------------------------------------------------
void ofCairoRenderer::scale(float xAmnt, float yAmnt, float zAmnt ){
if(!surface || !cr) return;
cairo_matrix_t matrix;
cairo_get_matrix(cr,&matrix);
cairo_matrix_scale(&matrix,xAmnt,yAmnt);
cairo_set_matrix(cr,&matrix);
if(!b3D) return;
modelView.glScale(xAmnt,yAmnt,zAmnt);
}
AffineTransform GraphicsContext::getCTM(IncludeDeviceScale) const
{
if (paintingDisabled())
return AffineTransform();
cairo_t* cr = platformContext()->cr();
cairo_matrix_t m;
cairo_get_matrix(cr, &m);
return AffineTransform(m.xx, m.yx, m.xy, m.yy, m.x0, m.y0);
}
IntPoint GraphicsContext::translatePoint(const IntPoint& point) const
{
cairo_matrix_t tm;
cairo_get_matrix(m_data->cr, &tm);
double x = point.x();
double y = point.y();
cairo_matrix_transform_point(&tm, &x, &y);
return IntPoint(x, y);
}
//----------------------------------------------------------
void ofCairoRenderer::translate(float x, float y, float z ){
if(!surface || !cr) return;
cairo_matrix_t matrix;
cairo_get_matrix(cr,&matrix);
cairo_matrix_translate(&matrix,x,y);
cairo_set_matrix(cr,&matrix);
if(!b3D) return;
modelView.glTranslate(ofVec3f(x,y,z));
}
void
gtk_css_style_render_icon_surface (GtkCssStyle *style,
cairo_t *cr,
cairo_surface_t *surface,
double x,
double y)
{
const GtkCssValue *shadows;
cairo_matrix_t matrix, transform_matrix, saved_matrix;
GdkRectangle extents;
g_return_if_fail (GTK_IS_CSS_STYLE (style));
g_return_if_fail (cr != NULL);
g_return_if_fail (surface != NULL);
shadows = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SHADOW);
if (!get_surface_extents (surface, &extents))
{
/* weird infinite surface, no special magic for you */
cairo_set_source_surface (cr, surface, x, y);
_gtk_css_shadows_value_paint_icon (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SHADOW), cr);
cairo_paint (cr);
return;
}
cairo_get_matrix (cr, &saved_matrix);
cairo_translate (cr, x + extents.x, y + extents.y);
if (_gtk_css_transform_value_get_matrix (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_TRANSFORM), &transform_matrix))
{
cairo_pattern_t *pattern;
/* XXX: Implement -gtk-icon-transform-origin instead of hardcoding "50% 50%" here */
cairo_matrix_init_translate (&matrix, extents.width / 2, extents.height / 2);
cairo_matrix_multiply (&matrix, &transform_matrix, &matrix);
cairo_matrix_translate (&matrix, - extents.width / 2, - extents.height / 2);
if (cairo_matrix_invert (&matrix) != CAIRO_STATUS_SUCCESS)
{
g_assert_not_reached ();
}
cairo_matrix_translate (&matrix, extents.x, extents.y);
pattern = cairo_pattern_create_for_surface (surface);
cairo_pattern_set_matrix (pattern, &matrix);
cairo_set_source (cr, pattern);
cairo_pattern_destroy (pattern);
_gtk_css_shadows_value_paint_icon (shadows, cr);
cairo_paint (cr);
}
cairo_set_matrix (cr, &saved_matrix);
}
static gboolean
context_is_unscaled (cairo_t *cr)
{
cairo_matrix_t matrix;
gdouble x, y;
x = y = 1;
cairo_get_matrix (cr, &matrix);
cairo_matrix_transform_distance (&matrix, &x, &y);
return x == 1 && y == 1;
}
static cairo_scaled_font_t *
create_scaled_font (cairo_t * cr)
{
FcPattern *pattern, *resolved;
FcResult result;
cairo_font_face_t *font_face;
cairo_scaled_font_t *scaled_font;
cairo_font_options_t *font_options;
cairo_matrix_t font_matrix, ctm;
double pixel_size;
font_options = cairo_font_options_create ();
cairo_get_font_options (cr, font_options);
pattern = FcPatternCreate ();
FcPatternAddString (pattern, FC_FAMILY, (FcChar8 *)"Bitstream Vera Sans");
FcPatternAddDouble (pattern, FC_PIXEL_SIZE, TEXT_SIZE);
FcConfigSubstitute (NULL, pattern, FcMatchPattern);
cairo_ft_font_options_substitute (font_options, pattern);
FcDefaultSubstitute (pattern);
resolved = FcFontMatch (NULL, pattern, &result);
/* set layout to vertical */
FcPatternDel (resolved, FC_VERTICAL_LAYOUT);
FcPatternAddBool (resolved, FC_VERTICAL_LAYOUT, FcTrue);
FcPatternGetDouble (resolved, FC_PIXEL_SIZE, 0, &pixel_size);
font_face = cairo_ft_font_face_create_for_pattern (resolved);
cairo_matrix_init_translate (&font_matrix, 10, 30);
cairo_matrix_rotate (&font_matrix, M_PI_2/3);
cairo_matrix_scale (&font_matrix, pixel_size, pixel_size);
cairo_get_matrix (cr, &ctm);
scaled_font = cairo_scaled_font_create (font_face,
&font_matrix,
&ctm,
font_options);
cairo_font_options_destroy (font_options);
cairo_font_face_destroy (font_face);
FcPatternDestroy (pattern);
FcPatternDestroy (resolved);
return scaled_font;
}
