svg_status_t _svg_android_set_pattern (svg_android_t *svg_android,
svg_element_t *pattern_element,
svg_android_render_type_t type)
{
svg_pattern_t *pattern = svg_element_pattern (pattern_element);
jobject pattern_bitmap;
jobject pattern_shader;
double x_px, y_px, width_px, height_px;
jobject path;
_svg_android_length_to_pixel (svg_android, &pattern->x, &x_px);
_svg_android_length_to_pixel (svg_android, &pattern->y, &y_px);
_svg_android_length_to_pixel (svg_android, &pattern->width, &width_px);
_svg_android_length_to_pixel (svg_android, &pattern->height, &height_px);
/* OK. We've got the final path to be filled/stroked inside the
* android context right now. But we're also going to re-use that
* same context to draw the pattern. And since the path is no
* longer in the graphics state, android_save/restore will not help
* us here.
*
* Currently we deal with this by manually saving/restoring the
* path.
*
*/
path = svg_android->state->path;
svg_android->state->path = ANDROID_PATH_CREATE(svg_android);
ANDROID_SAVE(svg_android);
pattern_bitmap = ANDROID_CREATE_BITMAP(svg_android,
(int) (width_px + 0.5),
(int) (height_px + 0.5));
_svg_android_push_state (svg_android, pattern_bitmap, NULL);
svg_android->state->matrix = ANDROID_IDENTITY_MATRIX(svg_android);
svg_android->state->fill_paint.type = SVG_PAINT_TYPE_NONE;
svg_android->state->stroke_paint.type = SVG_PAINT_TYPE_NONE;
svg_element_render (pattern->group_element, &SVG_ANDROID_RENDER_ENGINE, svg_android);
_svg_android_pop_state (svg_android);
ANDROID_RESTORE(svg_android);
svg_android->state->path = path ;
pattern_shader = ANDROID_CREATE_BITMAP_SHADER(svg_android, pattern_bitmap);
ANDROID_PAINT_SET_SHADER(svg_android, pattern_shader);
return SVG_STATUS_SUCCESS;
}
svg_status_t _svg_android_set_color_and_alpha (svg_android_t *svg_android,
svg_color_t *color,
double alpha)
{
if (color->is_current_color)
color = &svg_android->state->color;
ANDROID_PAINT_SET_SHADER(svg_android, NULL); // remove shader
ANDROID_PAINT_SET_COLOR(svg_android,
(int)(alpha * 255.0),
svg_color_get_red (color),
svg_color_get_green (color),
svg_color_get_blue (color)
);
return SVG_ANDROID_STATUS_SUCCESS;
}
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;
}
svg_status_t _svg_android_set_pattern (svg_android_t *svg_android,
svg_element_t *pattern_element,
svg_android_render_type_t type)
{
svg_pattern_t *pattern = svg_element_pattern (pattern_element);
jobject pattern_bitmap;
jobject pattern_shader;
double x_px, y_px, width_px, height_px;
jobject path;
_svg_android_length_to_pixel (svg_android, &pattern->x, &x_px);
_svg_android_length_to_pixel (svg_android, &pattern->y, &y_px);
_svg_android_length_to_pixel (svg_android, &pattern->width, &width_px);
_svg_android_length_to_pixel (svg_android, &pattern->height, &height_px);
/* OK. We've got the final path to be filled/stroked inside the
* android context right now. But we're also going to re-use that
* same context to draw the pattern. And since the path is no
* longer in the graphics state, android_save/restore will not help
* us here.
*
* Currently we deal with this by manually saving/restoring the
* path.
*
* It might be simpler to just use a new cairo_t for drawing the
* pattern.
*/
path = svg_android->state->path; //cairo_copy_path (svg_android->cr);
svg_android->state->path = ANDROID_PATH_CREATE(svg_android); // cairo_new_path (svg_android->cr);
ANDROID_SAVE(svg_android);
pattern_bitmap = ANDROID_CREATE_BITMAP(svg_android,
(int) (width_px + 0.5),
(int) (height_px + 0.5));
#if 0
pattern_surface = cairo_surface_create_similar (cairo_get_target (svg_android->cr),
CAIRO_FORMAT_ARGB32,
(int) (width_px + 0.5),
(int) (height_px + 0.5));
#endif
_svg_android_push_state (svg_android, pattern_bitmap);
svg_android->state->matrix = ANDROID_IDENTITY_MATRIX(svg_android);
//cairo_identity_matrix (svg_android->cr);
svg_android->state->fill_paint.type = SVG_PAINT_TYPE_NONE;
svg_android->state->stroke_paint.type = SVG_PAINT_TYPE_NONE;
svg_element_render (pattern->group_element, &SVG_ANDROID_RENDER_ENGINE, svg_android);
_svg_android_pop_state (svg_android);
ANDROID_RESTORE(svg_android);
svg_android->state->path = path ;
#if 0
cairo_new_path (svg_android->cr);
cairo_append_path (svg_android->cr, path);
cairo_path_destroy (path);
#endif
pattern_shader = ANDROID_CREATE_BITMAP_SHADER(svg_android, pattern_bitmap);
ANDROID_PAINT_SET_SHADER(svg_android, pattern_shader);
#if 0
surface_pattern = cairo_pattern_create_for_surface (pattern_surface);
cairo_surface_destroy (pattern_surface);
cairo_pattern_set_extend (surface_pattern, CAIRO_EXTEND_REPEAT);
cairo_set_source (svg_android->cr, surface_pattern);
cairo_pattern_destroy (surface_pattern);
#endif
return SVG_STATUS_SUCCESS;
}