wxSVGRect wxSVGCanvasPathSkia::GetBBox(const wxSVGMatrix * matrix)
{
if (!m_path.isEmpty())
{
SkRect rc = m_path.getBounds();
return wxSVGRect(rc.fLeft, rc.fTop, rc.width(), rc.height());
}
else
{
return wxSVGRect(0, 0, 0, 0);
}
}
wxSVGRect wxSVGVideoElement::GetBBox(wxSVG_COORDINATES coordinates) {
wxSVGRect bbox = wxSVGRect(GetX().GetAnimVal(), GetY().GetAnimVal(), GetWidth().GetAnimVal(),
GetHeight().GetAnimVal());
if (coordinates != wxSVG_COORDINATES_USER)
bbox.MatrixTransform(GetMatrix(coordinates));
return bbox;
}
wxSVGRect wxSVGCanvasPathCairo::GetBBox(const wxSVGMatrix& matrix) {
if (&matrix) {
cairo_matrix_t m;
cairo_matrix_init(&m, matrix.GetA(), matrix.GetB(), matrix.GetC(), matrix.GetD(), matrix.GetE(), matrix.GetF());
cairo_set_matrix(m_cr, &m);
}
double x1, y1, x2, y2;
cairo_fill_extents(m_cr, &x1, &y1, &x2, &y2);
if (&matrix) {
cairo_matrix_t mat;
cairo_matrix_init(&mat, 1, 0, 0, 1, 0, 0);
cairo_set_matrix(m_cr, &mat);
}
return wxSVGRect(x1, y1, x2 - x1, y2 - y1);
}
wxSVGRect wxSVGEllipseElement::GetResultBBox(wxSVG_COORDINATES coordinates) {
wxSVGRect bbox = GetBBox(coordinates);
if (GetStroke().GetPaintType() == wxSVG_PAINTTYPE_NONE)
return bbox;
double strokeWidthX = GetStrokeWidth();
double strokeWidthY = strokeWidthX;
if (coordinates != wxSVG_COORDINATES_USER) {
wxSVGMatrix matrix = GetMatrix(coordinates);
strokeWidthX *= matrix.GetA();
strokeWidthY *= matrix.GetD();
}
return wxSVGRect(bbox.GetX() - strokeWidthX / 2, bbox.GetY() - strokeWidthY / 2, bbox.GetWidth() + strokeWidthX,
bbox.GetHeight() + strokeWidthY);
}
wxSVGRect wxSVGCanvasPathCairo::GetResultBBox(const wxCSSStyleDeclaration& style, const wxSVGMatrix& matrix) {
if (&matrix) {
cairo_matrix_t m;
cairo_matrix_init(&m, matrix.GetA(), matrix.GetB(), matrix.GetC(), matrix.GetD(), matrix.GetE(), matrix.GetF());
cairo_set_matrix(m_cr, &m);
}
ApplyStrokeStyle(m_cr, style);
double x1, y1, x2, y2;
if (style.GetStrokeWidth() > 0)
cairo_stroke_extents(m_cr, &x1, &y1, &x2, &y2);
else
cairo_fill_extents(m_cr, &x1, &y1, &x2, &y2);
if (&matrix) {
cairo_matrix_t mat;
cairo_matrix_init(&mat, 1, 0, 0, 1, 0, 0);
cairo_set_matrix(m_cr, &mat);
}
return wxSVGRect(x1, y1, x2 - x1, y2 - y1);
}
wxSVGRect wxSVGEllipseElement::GetBBox(wxSVG_COORDINATES coordinates) {
if (coordinates == wxSVG_COORDINATES_USER)
return wxSVGRect(GetCx().GetBaseVal() - GetRx().GetBaseVal(), GetCy().GetBaseVal() - GetRy().GetBaseVal(),
2 * GetRx().GetBaseVal(), 2 * GetRy().GetBaseVal());
wxSVGMatrix matrix = GetMatrix(coordinates);
double angles[4];
angles[0] = atan((GetRy().GetBaseVal() * matrix.GetC()) / (GetRx().GetBaseVal() * matrix.GetA()));
angles[1] = atan((GetRy().GetBaseVal() * matrix.GetD()) / (GetRx().GetBaseVal() * matrix.GetB()));
angles[2] = angles[0] + pi;
angles[3] = angles[1] + pi;
wxSVGPointList points = wxSVGPointList();
for (int i = 0; i < 4; i++) {
points.Add(wxSVGPoint(GetRx().GetBaseVal() * cos(angles[i]) + GetCx().GetBaseVal(),
GetRy().GetBaseVal() * sin(angles[i]) + GetCy().GetBaseVal()));
}
wxSVGPoint p0 = points[0].MatrixTransform(matrix);
wxSVGRect bbox(p0.GetX(), p0.GetY(), 0, 0);
wxSVGPoint pi = wxSVGPoint();
for (int i = 1; i < (int) points.Count(); i++) {
pi = points[i].MatrixTransform(matrix);
if (bbox.GetX() > pi.GetX()) {
bbox.SetWidth(bbox.GetWidth() + bbox.GetX() - pi.GetX());
bbox.SetX(pi.GetX());
}
if (bbox.GetY() > pi.GetY()) {
bbox.SetHeight(bbox.GetHeight() + bbox.GetY() - pi.GetY());
bbox.SetY(pi.GetY());
}
if (bbox.GetX() + bbox.GetWidth() < pi.GetX())
bbox.SetWidth(pi.GetX() - bbox.GetX());
if (bbox.GetY() + bbox.GetHeight() < pi.GetY())
bbox.SetHeight(pi.GetY() - bbox.GetY());
}
return bbox;
}
wxSVGRect wxSVGSVGElement::CreateSVGRect() const {
return wxSVGRect();
}
void wxSVGCanvasTextCairo::InitText(const wxString& text, const wxCSSStyleDeclaration& style, wxSVGMatrix* matrix) {
BeginChar(matrix);
// create path from text
cairo_t* cr = ((wxSVGCanvasPathCairo*) m_char->path)->GetCr();
#if defined(__WXMSW__) || defined(__WXMAC__)
int size = (int) style.GetFontSize();
int fstyle = style.GetFontStyle() == wxCSS_VALUE_ITALIC ? wxFONTSTYLE_ITALIC
: (style.GetFontStyle() == wxCSS_VALUE_OBLIQUE ? wxFONTSTYLE_SLANT : wxFONTSTYLE_NORMAL);
wxFontWeight weight = style.GetFontWeight() == wxCSS_VALUE_BOLD ? wxFONTWEIGHT_BOLD
: style.GetFontWeight() == wxCSS_VALUE_BOLDER ? wxFONTWEIGHT_MAX
: style.GetFontWeight() == wxCSS_VALUE_LIGHTER ? wxFONTWEIGHT_LIGHT : wxFONTWEIGHT_NORMAL;
wxFont fnt(size, wxFONTFAMILY_DEFAULT, fstyle, weight, false, style.GetFontFamily());
#ifdef __WXMSW__
HFONT hfont = (HFONT) fnt.GetResourceHandle();
cairo_set_font_face(cr, cairo_win32_font_face_create_for_hfont(hfont));
#else
CGFontRef cgFont = fnt.OSXGetCGFont();
cairo_set_font_face(cr, cairo_quartz_font_face_create_for_cgfont(cgFont));
#endif
cairo_set_font_size(cr, style.GetFontSize());
cairo_font_extents_t fextents;
cairo_font_extents(cr, &fextents);
double maxWidth = 0;
if (style.GetTextAnchor() == wxCSS_VALUE_MIDDLE || style.GetTextAnchor() == wxCSS_VALUE_END) {
wxStringTokenizer tokenzr(text, wxT("\n"));
while (tokenzr.HasMoreTokens()) {
wxString token = tokenzr.GetNextToken();
cairo_text_extents_t extents;
cairo_text_extents(cr, (const char*) token.utf8_str(), &extents);
if (maxWidth < extents.width)
maxWidth = extents.width;
}
}
wxStringTokenizer tokenzr(text, wxT("\n"));
double x_advance = 0;
double width = 0;
double height = 0;
double y = 0;
while (tokenzr.HasMoreTokens()) {
wxString token = tokenzr.GetNextToken();
// get text extents
cairo_text_extents_t extents;
cairo_text_extents(cr, (const char*) token.utf8_str(), &extents);
double x = style.GetTextAnchor() == wxCSS_VALUE_END ? maxWidth - extents.width
: style.GetTextAnchor() == wxCSS_VALUE_MIDDLE ? (maxWidth - extents.width) / 2 : 0;
m_char->path->MoveTo(m_tx + x, m_ty + y);
cairo_text_path(cr, (const char*) token.utf8_str());
if (x_advance < extents.x_advance)
x_advance = extents.x_advance;
if (width < extents.width)
width = extents.width;
height += fextents.height;
if (tokenzr.HasMoreTokens())
y += fextents.height;
}
// set bbox
m_char->bbox = wxSVGRect(m_tx, m_ty, width, height);
// increase current position (m_tx)
if (style.GetTextAnchor() == wxCSS_VALUE_MIDDLE || style.GetTextAnchor() == wxCSS_VALUE_END) {
wxSVGRect bbox = m_char->path->GetResultBBox(style);
m_tx += x_advance > bbox.GetWidth() ? x_advance : bbox.GetWidth();
} else
m_tx += x_advance;
#else
PangoLayout* layout = pango_cairo_create_layout(cr);
PangoFontDescription* font = pango_font_description_new();
pango_font_description_set_family(font, style.GetFontFamily().ToAscii());
pango_font_description_set_weight(font, style.GetFontWeight() == wxCSS_VALUE_BOLD ? PANGO_WEIGHT_BOLD
: PANGO_WEIGHT_NORMAL);
pango_font_description_set_style(font, style.GetFontStyle() == wxCSS_VALUE_ITALIC ? PANGO_STYLE_ITALIC
: (style.GetFontStyle() == wxCSS_VALUE_OBLIQUE ? PANGO_STYLE_OBLIQUE : PANGO_STYLE_NORMAL));
pango_font_description_set_absolute_size(font, style.GetFontSize() * PANGO_SCALE);
PangoContext* ctx = pango_layout_get_context(layout);
PangoFont* f = pango_context_load_font(ctx, font);
if (f == NULL)
pango_font_description_set_style(font, PANGO_STYLE_NORMAL);
pango_layout_set_font_description(layout, font);
if (style.GetTextAnchor() != wxCSS_VALUE_START)
pango_layout_set_alignment(layout, style.GetTextAnchor() == wxCSS_VALUE_MIDDLE ? PANGO_ALIGN_CENTER : PANGO_ALIGN_RIGHT);
pango_layout_set_text(layout, (const char*) text.utf8_str(), -1);
int baseline = pango_layout_get_baseline(layout);
m_char->path->MoveTo(m_tx, m_ty - ((double)baseline / PANGO_SCALE));
pango_cairo_layout_path(cr, layout);
// set bbox and increase current position (m_tx)
int lwidth, lheight;
pango_layout_get_size(layout, &lwidth, &lheight);
double width = ((double)lwidth / PANGO_SCALE);
double height = ((double)lheight / PANGO_SCALE);
m_char->bbox = wxSVGRect(m_tx, m_ty, width, height);
if (style.GetTextAnchor() == wxCSS_VALUE_MIDDLE || style.GetTextAnchor() == wxCSS_VALUE_END) {
wxSVGRect bbox = m_char->path->GetResultBBox(style);
m_tx += width > bbox.GetWidth() ? width : bbox.GetWidth();
} else
m_tx += width;
g_object_unref(layout);
pango_font_description_free(font);
#endif
}
