static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
double x1, y1, x2, y2;
cairo_move_to (cr, 0.0, 0.0);
cairo_line_to (cr, 100.0, 100.0);
cairo_set_line_width (cr, 0.0);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER);
cairo_stroke_extents (cr, &x1, &y1, &x2, &y2);
cairo_in_stroke (cr, 50, 50);
cairo_stroke_preserve (cr);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
cairo_stroke_extents (cr, &x1, &y1, &x2, &y2);
cairo_in_stroke (cr, 50, 50);
cairo_stroke_preserve (cr);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL);
cairo_stroke_extents (cr, &x1, &y1, &x2, &y2);
cairo_in_stroke (cr, 50, 50);
cairo_stroke (cr);
return CAIRO_TEST_SUCCESS;
}
static PyObject *
pycairo_stroke_extents (PycairoContext *o) {
double x1, y1, x2, y2;
cairo_stroke_extents (o->ctx, &x1, &y1, &x2, &y2);
RETURN_NULL_IF_CAIRO_CONTEXT_ERROR(o->ctx);
return Py_BuildValue("(dddd)", x1, y1, x2, y2);
}
gfxRect
gfxContext::GetUserStrokeExtent()
{
double xmin, ymin, xmax, ymax;
cairo_stroke_extents(mCairo, &xmin, &ymin, &xmax, &ymax);
return gfxRect(xmin, ymin, xmax - xmin, ymax - ymin);
}
static inline void drawPathShadow(GraphicsContext* context, PathDrawingStyle drawingStyle)
{
ShadowBlur& shadow = context->platformContext()->shadowBlur();
if (shadow.type() == ShadowBlur::NoShadow)
return;
// Calculate the extents of the rendered solid paths.
cairo_t* cairoContext = context->platformContext()->cr();
OwnPtr<cairo_path_t> path = adoptPtr(cairo_copy_path(cairoContext));
FloatRect solidFigureExtents;
double x0 = 0;
double x1 = 0;
double y0 = 0;
double y1 = 0;
if (drawingStyle & Stroke) {
cairo_stroke_extents(cairoContext, &x0, &y0, &x1, &y1);
solidFigureExtents = FloatRect(x0, y0, x1 - x0, y1 - y0);
}
if (drawingStyle & Fill) {
cairo_fill_extents(cairoContext, &x0, &y0, &x1, &y1);
FloatRect fillExtents(x0, y0, x1 - x0, y1 - y0);
solidFigureExtents.unite(fillExtents);
}
GraphicsContext* shadowContext = shadow.beginShadowLayer(context, solidFigureExtents);
if (!shadowContext)
return;
cairo_t* cairoShadowContext = shadowContext->platformContext()->cr();
// It's important to copy the context properties to the new shadow
// context to preserve things such as the fill rule and stroke width.
copyContextProperties(cairoContext, cairoShadowContext);
if (drawingStyle & Fill) {
cairo_save(cairoShadowContext);
cairo_append_path(cairoShadowContext, path.get());
shadowContext->platformContext()->prepareForFilling(context->state(), PlatformContextCairo::NoAdjustment);
cairo_fill(cairoShadowContext);
cairo_restore(cairoShadowContext);
}
if (drawingStyle & Stroke) {
cairo_append_path(cairoShadowContext, path.get());
shadowContext->platformContext()->prepareForStroking(context->state(), PlatformContextCairo::DoNotPreserveAlpha);
cairo_stroke(cairoShadowContext);
}
// The original path may still be hanging around on the context and endShadowLayer
// will take care of properly creating a path to draw the result shadow. We remove the path
// temporarily and then restore it.
// See: https://bugs.webkit.org/show_bug.cgi?id=108897
cairo_new_path(cairoContext);
shadow.endShadowLayer(context);
cairo_append_path(cairoContext, path.get());
}
static PyObject *
pycairo_stroke_extents (PycairoContext *o)
{
double x1, y1, x2, y2;
cairo_stroke_extents (o->ctx, &x1, &y1, &x2, &y2);
if (Pycairo_Check_Status (cairo_status (o->ctx)))
return NULL;
return Py_BuildValue("(dddd)", x1, y1, x2, y2);
}
static inline void drawPathShadow(GraphicsContext* context, PathDrawingStyle drawingStyle)
{
ShadowBlur& shadow = context->platformContext()->shadowBlur();
if (shadow.type() == ShadowBlur::NoShadow)
return;
// Calculate the extents of the rendered solid paths.
cairo_t* cairoContext = context->platformContext()->cr();
OwnPtr<cairo_path_t> path = adoptPtr(cairo_copy_path(cairoContext));
FloatRect solidFigureExtents;
double x0 = 0;
double x1 = 0;
double y0 = 0;
double y1 = 0;
if (drawingStyle & Stroke) {
cairo_stroke_extents(cairoContext, &x0, &y0, &x1, &y1);
solidFigureExtents = FloatRect(x0, y0, x1 - x0, y1 - y0);
}
if (drawingStyle & Fill) {
cairo_fill_extents(cairoContext, &x0, &y0, &x1, &y1);
FloatRect fillExtents(x0, y0, x1 - x0, y1 - y0);
solidFigureExtents.unite(fillExtents);
}
GraphicsContext* shadowContext = shadow.beginShadowLayer(context, solidFigureExtents);
if (!shadowContext)
return;
cairo_t* cairoShadowContext = shadowContext->platformContext()->cr();
// It's important to copy the context properties to the new shadow
// context to preserve things such as the fill rule and stroke width.
copyContextProperties(cairoContext, cairoShadowContext);
if (drawingStyle & Fill) {
cairo_save(cairoShadowContext);
cairo_append_path(cairoShadowContext, path.get());
shadowContext->platformContext()->prepareForFilling(context->state(), PlatformContextCairo::NoAdjustment);
cairo_clip(cairoShadowContext);
cairo_paint(cairoShadowContext);
cairo_restore(cairoShadowContext);
}
if (drawingStyle & Stroke) {
cairo_append_path(cairoShadowContext, path.get());
shadowContext->platformContext()->prepareForStroking(context->state(), PlatformContextCairo::DoNotPreserveAlpha);
cairo_stroke(cairoShadowContext);
}
shadow.endShadowLayer(context);
// ShadowBlur::endShadowLayer destroys the current path on the Cairo context. We restore it here.
cairo_new_path(cairoContext);
cairo_append_path(cairoContext, path.get());
}
static int
cr_stroke_extents (lua_State *L) {
cairo_t **obj = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_CONTEXT);
double x1, y1, x2, y2;
cairo_stroke_extents(*obj, &x1, &y1, &x2, &y2);
lua_pushnumber(L, x1);
lua_pushnumber(L, y1);
lua_pushnumber(L, x2);
lua_pushnumber(L, y2);
return 4;
}
FloatRect Path::boundingRect() const
{
cairo_t* cr = platformPath()->m_cr;
double x0, x1, y0, y1;
#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 6, 0)
cairo_path_extents(cr, &x0, &y0, &x1, &y1);
#else
cairo_stroke_extents(cr, &x0, &y0, &x1, &y1);
#endif
return FloatRect(x0, y0, x1 - x0, y1 - y0);
}
FloatRect Path::strokeBoundingRect(StrokeStyleApplier* applier) const
{
cairo_t* cr = platformPath()->context();
if (applier) {
GraphicsContext gc(cr);
applier->strokeStyle(&gc);
}
double x0, x1, y0, y1;
cairo_stroke_extents(cr, &x0, &y0, &x1, &y1);
return FloatRect(x0, y0, x1 - x0, y1 - y0);
}
FloatRect RenderPath::strokeBBox() const
{
// TODO: this implementation is naive
cairo_t* cr = path().platformPath()->m_cr;
double x0, x1, y0, y1;
cairo_stroke_extents(cr, &x0, &y0, &x1, &y1);
FloatRect bbox = FloatRect(x0, y0, x1 - x0, y1 - y0);
return bbox;
}
/* Rectangular extents */
static VALUE
cr_stroke_extents (VALUE self)
{
double extents[4];
if (rb_block_given_p ())
{
cr_new_path (self);
rb_yield (self);
}
cairo_stroke_extents (_SELF, extents, extents + 1, extents + 2, extents + 3);
return rb_cairo__float_array (extents, 4);
}
Rect
PathCairo::GetStrokedBounds(const StrokeOptions &aStrokeOptions,
const Matrix &aTransform) const
{
EnsureContainingContext();
double x1, y1, x2, y2;
SetCairoStrokeOptions(mContainingContext, aStrokeOptions);
cairo_stroke_extents(mContainingContext, &x1, &y1, &x2, &y2);
Rect bounds((Float)x1, (Float)y1, (Float)(x2 - x1), (Float)(y2 - y1));
return aTransform.TransformBounds(bounds);
}
FloatRect Path::strokeBoundingRect(StrokeStyleApplier* applier) const
{
// Should this be isEmpty() or can an empty path have a non-zero origin?
if (isNull())
return FloatRect();
cairo_t* cr = platformPath()->context();
if (applier) {
GraphicsContext gc(cr);
applier->strokeStyle(&gc);
}
double x0, x1, y0, y1;
cairo_stroke_extents(cr, &x0, &y0, &x1, &y1);
return FloatRect(x0, y0, x1 - x0, y1 - y0);
}
CAMLprim value
ml_cairo_stroke_extents (value v_cr)
{
double x1, y1, x2, y2;
cairo_stroke_extents (cairo_t_val (v_cr), &x1, &y1, &x2, &y2);
check_cairo_status (v_cr);
{
CAMLparam0 ();
CAMLlocal1 (t);
t = caml_alloc_tuple (4);
Store_field (t, 0, caml_copy_double (x1));
Store_field (t, 1, caml_copy_double (y1));
Store_field (t, 2, caml_copy_double (x2));
Store_field (t, 3, caml_copy_double (y2));
CAMLreturn (t);
}
}
static int cairo_stroke_extents_l( lua_State* L )
{
double x1 = 0.0;
double y1 = 0.0;
double x2 = 0.0;
double y2 = 0.0;
lua_cairo_t* lc = lua_cairo_check( L, 1 );
cairo_stroke_extents( lc->cairo, &x1, &y1, &x2, &y2 );
lua_pushnumber( L, x1 );
lua_pushnumber( L, y1 );
lua_pushnumber( L, x2 );
lua_pushnumber( L, y2 );
return( 4 );
}
static void
goc_polyline_update_bounds (GocItem *item)
{
cairo_surface_t *surface;
cairo_t *cr;
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 1);
cr = cairo_create (surface);
if (goc_polyline_prepare_draw (item, cr, 0)) {
cairo_stroke_extents (cr, &item->x0, &item->y0, &item->x1, &item->y1);
} else {
item->x0 = item->y0 = G_MAXDOUBLE;
item->x1 = item->y1 = -G_MAXDOUBLE;
}
cairo_destroy (cr);
cairo_surface_destroy (surface);
}
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);
}
void lime_cairo_stroke_extents (value handle, double x1, double y1, double x2, double y2) {
cairo_stroke_extents ((cairo_t*)val_data (handle), &x1, &y1, &x2, &y2);
}
void lime_cairo_stroke_extents (double handle, double x1, double y1, double x2, double y2) {
cairo_stroke_extents ((cairo_t*)(intptr_t)handle, &x1, &y1, &x2, &y2);
}
void Context::strokeExtents( double *x1, double *y1, double *x2, double *y2 )
{
cairo_stroke_extents( mCairo, x1, y1, x2, y2 );
}
static void
draw_check_if_object_is_in_selected_area (cairo_t *cairoTarget,
gboolean isStroke, gerbv_selection_info_t *selectionInfo,
gerbv_image_t *image, struct gerbv_net *net,
enum draw_mode drawMode)
{
gerbv_selection_item_t sItem = {image, net};
gdouble corner1X, corner1Y, corner2X, corner2Y;
gdouble x1, x2, y1, y2;
gdouble minX, minY, maxX, maxY;
corner1X = selectionInfo->lowerLeftX;
corner1Y = selectionInfo->lowerLeftY;
corner2X = selectionInfo->upperRightX;
corner2Y = selectionInfo->upperRightY;
/* calculate the coordinate of the user's click in the current
transformation matrix */
cairo_device_to_user (cairoTarget, &corner1X, &corner1Y);
cairo_device_to_user (cairoTarget, &corner2X, &corner2Y);
switch (selectionInfo->type) {
case GERBV_SELECTION_POINT_CLICK:
/* use the cairo in_fill routine to see if the point is within the
drawn area */
if ((isStroke && cairo_in_stroke (cairoTarget, corner1X, corner1Y)) ||
(!isStroke && cairo_in_fill (cairoTarget, corner1X, corner1Y))) {
if (!draw_net_is_in_selection_buffer_remove (net,
selectionInfo,
(drawMode == FIND_SELECTIONS_TOGGLE))) {
selection_add_item (selectionInfo, &sItem);
}
}
break;
case GERBV_SELECTION_DRAG_BOX:
/* we can't assume the "lowerleft" corner is actually in the lower left,
since the cairo transformation matrix may be mirrored,etc */
minX = MIN(corner1X,corner2X);
maxX = MAX(corner1X,corner2X);
minY = MIN(corner1Y,corner2Y);
maxY = MAX(corner1Y,corner2Y);
if (isStroke)
cairo_stroke_extents (cairoTarget, &x1, &y1, &x2, &y2);
else
cairo_fill_extents (cairoTarget, &x1, &y1, &x2, &y2);
if ((minX < x1) && (minY < y1) && (maxX > x2) && (maxY > y2)) {
if (!draw_net_is_in_selection_buffer_remove (net,
selectionInfo,
(drawMode == FIND_SELECTIONS_TOGGLE))) {
selection_add_item (selectionInfo, &sItem);
}
}
break;
default:
break;
}
/* clear the path, since we didn't actually draw it and cairo
doesn't reset it after the previous calls */
cairo_new_path (cairoTarget);
}
svg_status_t _svg_android_set_gradient (svg_android_t *svg_android,
svg_gradient_t *gradient,
svg_android_render_type_t type)
{
svg_gradient_stop_t *stop;
int i;
jobject matrix, gradient_matrix;
jobject gradient_shader = NULL;
matrix = ANDROID_IDENTITY_MATRIX(svg_android);
switch (gradient->units) {
case SVG_GRADIENT_UNITS_USER:
break;
case SVG_GRADIENT_UNITS_BBOX:
{
jfloatArray farr;
jfloat *coords;
farr = ANDROID_PATH_GET_BOUNDS(svg_android, svg_android->state->path);
coords = (*(svg_android->env))->GetFloatArrayElements((svg_android->env), farr, 0);
// Maybe we need to add the stroke width to be correct here? (if type == SVG_ANDROID_RENDER_TYPE_STROKE)
ANDROID_MATRIX_TRANSLATE(svg_android, matrix, coords[0], coords[1]);
ANDROID_MATRIX_SCALE(svg_android, matrix, coords[2] - coords[0], coords[3] - coords[1]);
(*(svg_android->env))->ReleaseFloatArrayElements(svg_android->env, farr, coords, 0);
#if 0 // note here how the cairo version checks for fill or stroke, the extents might be different.. but for android I use the bounds of the path, this doesn't account for stroke painting outside..
double x1, y1, x2, y2;
if (type == SVG_ANDROID_RENDER_TYPE_FILL)
cairo_fill_extents (svg_android->cr, &x1, &y1, &x2, &y2);
else
cairo_stroke_extents (svg_android->cr, &x1, &y1, &x2, &y2);
cairo_matrix_translate (&matrix, x1, y1);
cairo_matrix_scale (&matrix, x2 - x1, y2 - y1);
#endif
svg_android->state->bbox = 1;
} break;
}
// create java float array for the stops offsets, and int array for the colors
jfloat offsets[gradient->num_stops];
jint colors[gradient->num_stops];
for (i = 0; i < gradient->num_stops; i++) {
stop = &gradient->stops[i];
offsets[i] = stop->offset;
unsigned long r, g, b, o;
r = svg_color_get_red (&stop->color);
g = svg_color_get_green (&stop->color);
b = svg_color_get_blue (&stop->color);
o = (unsigned long)(stop->opacity * 255.0);
colors[i] =
(o & 0xff) << 24 |
(r & 0xff) << 16 |
(g & 0xff) << 8 |
(b & 0xff);
}
jfloatArray offsets_a;
jintArray colors_a;
offsets_a = (*(svg_android->env))->NewFloatArray(svg_android->env, gradient->num_stops);
colors_a = (*(svg_android->env))->NewIntArray(svg_android->env, gradient->num_stops);
(*(svg_android->env))->SetFloatArrayRegion(svg_android->env, offsets_a, 0, gradient->num_stops, offsets);
(*(svg_android->env))->SetIntArrayRegion(svg_android->env, colors_a, 0, gradient->num_stops, colors);
int spreadType = 2;
switch (gradient->spread) {
case SVG_GRADIENT_SPREAD_REPEAT:
spreadType = 0;
break;
case SVG_GRADIENT_SPREAD_REFLECT:
spreadType = 1;
break;
default:
spreadType = 2;
break;
}
switch (gradient->type) {
case SVG_GRADIENT_LINEAR:
{
double x1, y1, x2, y2;
_svg_android_length_to_pixel (svg_android, &gradient->u.linear.x1, &x1);
_svg_android_length_to_pixel (svg_android, &gradient->u.linear.y1, &y1);
_svg_android_length_to_pixel (svg_android, &gradient->u.linear.x2, &x2);
_svg_android_length_to_pixel (svg_android, &gradient->u.linear.y2, &y2);
if((*(svg_android->env))->ExceptionOccurred(svg_android->env)) {
(*(svg_android->env))->ExceptionDescribe(svg_android->env);
}
gradient_shader = ANDROID_CREATE_LINEAR_GRADIENT(svg_android, x1, y1, x2, y2, colors_a, offsets_a, spreadType);
if((*(svg_android->env))->ExceptionOccurred(svg_android->env)) {
(*(svg_android->env))->ExceptionDescribe(svg_android->env);
}
}
break;
case SVG_GRADIENT_RADIAL:
{
double cx, cy, r, fx, fy;
_svg_android_length_to_pixel (svg_android, &gradient->u.radial.cx, &cx);
_svg_android_length_to_pixel (svg_android, &gradient->u.radial.cy, &cy);
_svg_android_length_to_pixel (svg_android, &gradient->u.radial.r, &r);
_svg_android_length_to_pixel (svg_android, &gradient->u.radial.fx, &fx);
_svg_android_length_to_pixel (svg_android, &gradient->u.radial.fy, &fy);
gradient_shader = ANDROID_CREATE_RADIAL_GRADIENT(svg_android, fx, fy, r, colors_a, offsets_a, spreadType);
#if 0 // note here that there is a start and an end circel, android doesn't support that. The end circle in Android always have the same coords as the start circle
pattern = cairo_pattern_create_radial (fx, fy, 0.0, cx, cy, r);
#endif
} break;
}
gradient_matrix = ANDROID_MATRIX_CREATE(svg_android,
gradient->transform[0], gradient->transform[1],
gradient->transform[2], gradient->transform[3],
gradient->transform[4], gradient->transform[5]);
ANDROID_MATRIX_MULTIPLY(svg_android, matrix, gradient_matrix);
ANDROID_MATRIX_MULTIPLY(svg_android, matrix, svg_android->state->matrix);
if(svg_android->fit_to_area)
ANDROID_MATRIX_MULTIPLY(svg_android, matrix, svg_android->fit_to_MATRIX);
if(gradient_shader) {
ANDROID_SHADER_SET_MATRIX(svg_android, gradient_shader, matrix);
ANDROID_PAINT_SET_SHADER(svg_android, gradient_shader);
}
svg_android->state->bbox = 0;
return SVG_STATUS_SUCCESS;
}
static cairo_bool_t
check_extents (const cairo_test_context_t *ctx,
const char *message, cairo_t *cr, enum ExtentsType type,
enum Relation relation,
double x, double y, double width, double height)
{
double ext_x1, ext_y1, ext_x2, ext_y2;
const char *type_string;
const char *relation_string;
switch (type) {
default:
case FILL:
type_string = "fill";
cairo_fill_extents (cr, &ext_x1, &ext_y1, &ext_x2, &ext_y2);
break;
case STROKE:
type_string = "stroke";
cairo_stroke_extents (cr, &ext_x1, &ext_y1, &ext_x2, &ext_y2);
break;
case PATH:
type_string = "path";
cairo_path_extents (cr, &ext_x1, &ext_y1, &ext_x2, &ext_y2);
break;
}
/* ignore results after an error occurs */
if (cairo_status (cr))
return 1;
/* let empty rects match */
if ((ext_x1 == ext_x2 || ext_y1 == ext_y2) && (width == 0 || height == 0))
return 1;
switch (relation) {
default:
case EQUALS:
relation_string = "equal";
if (ext_x1 == x && ext_y1 == y && ext_x2 == x + width && ext_y2 == y + height)
return 1;
break;
case APPROX_EQUALS:
relation_string = "approx. equal";
if (fabs (ext_x1 - x) < 1. &&
fabs (ext_y1 - y) < 1. &&
fabs (ext_x2 - (x + width)) < 1. &&
fabs (ext_y2 - (y + height)) < 1.)
{
return 1;
}
break;
case CONTAINS:
relation_string = "contain";
if (width == 0 || height == 0) {
/* odd test that doesn't really test anything... */
return 1;
}
if (ext_x1 <= x && ext_y1 <= y && ext_x2 >= x + width && ext_y2 >= y + height)
return 1;
break;
}
cairo_test_log (ctx, "Error: %s; %s extents (%g, %g) x (%g, %g) should %s (%g, %g) x (%g, %g)\n",
message, type_string,
ext_x1, ext_y1, ext_x2 - ext_x1, ext_y2 - ext_y1,
relation_string,
x, y, width, height);
return 0;
}
