static void
xps_parse_gradient_brush(fz_context *ctx, xps_document *doc, const fz_matrix *ctm, const fz_rect *area,
char *base_uri, xps_resource *dict, fz_xml *root,
void (*draw)(fz_context *ctx, xps_document *, const fz_matrix*, const fz_rect *, struct stop *, int, fz_xml *, int))
{
fz_xml *node;
char *opacity_att;
char *spread_att;
char *transform_att;
fz_xml *transform_tag = NULL;
fz_xml *stop_tag = NULL;
struct stop stop_list[MAX_STOPS];
int stop_count;
fz_matrix local_ctm;
int spread_method;
opacity_att = fz_xml_att(root, "Opacity");
spread_att = fz_xml_att(root, "SpreadMethod");
transform_att = fz_xml_att(root, "Transform");
for (node = fz_xml_down(root); node; node = fz_xml_next(node))
{
if (fz_xml_is_tag(node, "LinearGradientBrush.Transform"))
transform_tag = fz_xml_down(node);
if (fz_xml_is_tag(node, "RadialGradientBrush.Transform"))
transform_tag = fz_xml_down(node);
if (fz_xml_is_tag(node, "LinearGradientBrush.GradientStops"))
stop_tag = fz_xml_down(node);
if (fz_xml_is_tag(node, "RadialGradientBrush.GradientStops"))
stop_tag = fz_xml_down(node);
}
xps_resolve_resource_reference(ctx, doc, dict, &transform_att, &transform_tag, NULL);
spread_method = SPREAD_PAD;
if (spread_att)
{
if (!strcmp(spread_att, "Pad"))
spread_method = SPREAD_PAD;
if (!strcmp(spread_att, "Reflect"))
spread_method = SPREAD_REFLECT;
if (!strcmp(spread_att, "Repeat"))
spread_method = SPREAD_REPEAT;
}
xps_parse_transform(ctx, doc, transform_att, transform_tag, &local_ctm, ctm);
if (!stop_tag) {
fz_warn(ctx, "missing gradient stops tag");
return;
}
stop_count = xps_parse_gradient_stops(ctx, doc, base_uri, stop_tag, stop_list, MAX_STOPS);
if (stop_count == 0)
{
fz_warn(ctx, "no gradient stops found");
return;
}
xps_begin_opacity(ctx, doc, &local_ctm, area, base_uri, dict, opacity_att, NULL);
draw(ctx, doc, &local_ctm, area, stop_list, stop_count, root, spread_method);
xps_end_opacity(ctx, doc, base_uri, dict, opacity_att, NULL);
}
void
xps_parse_canvas(fz_context *ctx, xps_document *doc, const fz_matrix *ctm, const fz_rect *area, char *base_uri, xps_resource *dict, fz_xml *root)
{
fz_device *dev = doc->dev;
xps_resource *new_dict = NULL;
fz_xml *node;
char *opacity_mask_uri;
char *transform_att;
char *clip_att;
char *opacity_att;
char *opacity_mask_att;
char *navigate_uri_att;
fz_xml *transform_tag = NULL;
fz_xml *clip_tag = NULL;
fz_xml *opacity_mask_tag = NULL;
fz_matrix transform;
transform_att = fz_xml_att(root, "RenderTransform");
clip_att = fz_xml_att(root, "Clip");
opacity_att = fz_xml_att(root, "Opacity");
opacity_mask_att = fz_xml_att(root, "OpacityMask");
navigate_uri_att = fz_xml_att(root, "FixedPage.NavigateUri");
for (node = fz_xml_down(root); node; node = fz_xml_next(node))
{
if (fz_xml_is_tag(node, "Canvas.Resources") && fz_xml_down(node))
{
if (new_dict)
{
fz_warn(ctx, "ignoring follow-up resource dictionaries");
}
else
{
new_dict = xps_parse_resource_dictionary(ctx, doc, base_uri, fz_xml_down(node));
if (new_dict)
{
new_dict->parent = dict;
dict = new_dict;
}
}
}
if (fz_xml_is_tag(node, "Canvas.RenderTransform"))
transform_tag = fz_xml_down(node);
if (fz_xml_is_tag(node, "Canvas.Clip"))
clip_tag = fz_xml_down(node);
if (fz_xml_is_tag(node, "Canvas.OpacityMask"))
opacity_mask_tag = fz_xml_down(node);
}
opacity_mask_uri = base_uri;
xps_resolve_resource_reference(ctx, doc, dict, &transform_att, &transform_tag, NULL);
xps_resolve_resource_reference(ctx, doc, dict, &clip_att, &clip_tag, NULL);
xps_resolve_resource_reference(ctx, doc, dict, &opacity_mask_att, &opacity_mask_tag, &opacity_mask_uri);
transform = fz_identity;
if (transform_att)
xps_parse_render_transform(ctx, doc, transform_att, &transform);
if (transform_tag)
xps_parse_matrix_transform(ctx, doc, transform_tag, &transform);
fz_concat(&transform, &transform, ctm);
if (navigate_uri_att)
xps_add_link(ctx, doc, area, base_uri, navigate_uri_att);
if (clip_att || clip_tag)
xps_clip(ctx, doc, &transform, dict, clip_att, clip_tag);
xps_begin_opacity(ctx, doc, &transform, area, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
for (node = fz_xml_down(root); node; node = fz_xml_next(node))
{
xps_parse_element(ctx, doc, &transform, area, base_uri, dict, node);
}
xps_end_opacity(ctx, doc, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
if (clip_att || clip_tag)
fz_pop_clip(ctx, dev);
if (new_dict)
xps_drop_resource_dictionary(ctx, doc, new_dict);
}
void
xps_parse_tiling_brush(fz_context *ctx, xps_document *doc, const fz_matrix *ctm, const fz_rect *area,
char *base_uri, xps_resource *dict, fz_xml *root,
void (*func)(fz_context *ctx, xps_document*, const fz_matrix*, const fz_rect*, char*, xps_resource*, fz_xml*, void*), void *user)
{
fz_device *dev = doc->dev;
fz_xml *node;
struct closure c;
char *opacity_att;
char *transform_att;
char *viewbox_att;
char *viewport_att;
char *tile_mode_att;
fz_xml *transform_tag = NULL;
fz_matrix transform;
fz_rect viewbox;
fz_rect viewport;
float xstep, ystep;
float xscale, yscale;
int tile_mode;
opacity_att = fz_xml_att(root, "Opacity");
transform_att = fz_xml_att(root, "Transform");
viewbox_att = fz_xml_att(root, "Viewbox");
viewport_att = fz_xml_att(root, "Viewport");
tile_mode_att = fz_xml_att(root, "TileMode");
c.base_uri = base_uri;
c.dict = dict;
c.root = root;
c.user = user;
c.func = func;
for (node = fz_xml_down(root); node; node = fz_xml_next(node))
{
if (fz_xml_is_tag(node, "ImageBrush.Transform"))
transform_tag = fz_xml_down(node);
if (fz_xml_is_tag(node, "VisualBrush.Transform"))
transform_tag = fz_xml_down(node);
}
xps_resolve_resource_reference(ctx, doc, dict, &transform_att, &transform_tag, NULL);
transform = fz_identity;
if (transform_att)
xps_parse_render_transform(ctx, doc, transform_att, &transform);
if (transform_tag)
xps_parse_matrix_transform(ctx, doc, transform_tag, &transform);
fz_concat(&transform, &transform, ctm);
viewbox = fz_unit_rect;
if (viewbox_att)
xps_parse_rectangle(ctx, doc, viewbox_att, &viewbox);
viewport = fz_unit_rect;
if (viewport_att)
xps_parse_rectangle(ctx, doc, viewport_att, &viewport);
if (fabsf(viewport.x1 - viewport.x0) < 0.01f || fabsf(viewport.y1 - viewport.y0) < 0.01f)
fz_warn(ctx, "not drawing tile for viewport size %.4f x %.4f", viewport.x1 - viewport.x0, viewport.y1 - viewport.y0);
else if (fabsf(viewbox.x1 - viewbox.x0) < 0.01f || fabsf(viewbox.y1 - viewbox.y0) < 0.01f)
fz_warn(ctx, "not drawing tile for viewbox size %.4f x %.4f", viewbox.x1 - viewbox.x0, viewbox.y1 - viewbox.y0);
/* some sanity checks on the viewport/viewbox size */
if (fabsf(viewport.x1 - viewport.x0) < 0.01f) return;
if (fabsf(viewport.y1 - viewport.y0) < 0.01f) return;
if (fabsf(viewbox.x1 - viewbox.x0) < 0.01f) return;
if (fabsf(viewbox.y1 - viewbox.y0) < 0.01f) return;
xstep = viewbox.x1 - viewbox.x0;
ystep = viewbox.y1 - viewbox.y0;
xscale = (viewport.x1 - viewport.x0) / xstep;
yscale = (viewport.y1 - viewport.y0) / ystep;
tile_mode = TILE_NONE;
if (tile_mode_att)
{
if (!strcmp(tile_mode_att, "None"))
tile_mode = TILE_NONE;
if (!strcmp(tile_mode_att, "Tile"))
tile_mode = TILE_TILE;
if (!strcmp(tile_mode_att, "FlipX"))
tile_mode = TILE_FLIP_X;
if (!strcmp(tile_mode_att, "FlipY"))
tile_mode = TILE_FLIP_Y;
if (!strcmp(tile_mode_att, "FlipXY"))
tile_mode = TILE_FLIP_X_Y;
}
if (tile_mode == TILE_FLIP_X || tile_mode == TILE_FLIP_X_Y)
xstep *= 2;
if (tile_mode == TILE_FLIP_Y || tile_mode == TILE_FLIP_X_Y)
ystep *= 2;
xps_begin_opacity(ctx, doc, &transform, area, base_uri, dict, opacity_att, NULL);
fz_pre_translate(&transform, viewport.x0, viewport.y0);
fz_pre_scale(&transform, xscale, yscale);
fz_pre_translate(&transform, -viewbox.x0, -viewbox.y0);
if (tile_mode != TILE_NONE)
{
int x0, y0, x1, y1;
fz_matrix invctm;
fz_rect local_area = *area;
fz_transform_rect(&local_area, fz_invert_matrix(&invctm, &transform));
x0 = floorf(local_area.x0 / xstep);
y0 = floorf(local_area.y0 / ystep);
x1 = ceilf(local_area.x1 / xstep);
y1 = ceilf(local_area.y1 / ystep);
#ifdef TILE
if ((x1 - x0) * (y1 - y0) > 1)
#else
if (0)
#endif
{
fz_rect bigview = viewbox;
bigview.x1 = bigview.x0 + xstep;
bigview.y1 = bigview.y0 + ystep;
fz_begin_tile(ctx, dev, &local_area, &bigview, xstep, ystep, &transform);
xps_paint_tiling_brush(ctx, doc, &transform, &viewbox, tile_mode, &c);
fz_end_tile(ctx, dev);
}
else
{
int x, y;
for (y = y0; y < y1; y++)
{
for (x = x0; x < x1; x++)
{
fz_matrix ttm = transform;
fz_pre_translate(&ttm, xstep * x, ystep * y);
xps_paint_tiling_brush(ctx, doc, &ttm, &viewbox, tile_mode, &c);
}
}
}
}
else
{
xps_paint_tiling_brush(ctx, doc, &transform, &viewbox, tile_mode, &c);
}
xps_end_opacity(ctx, doc, base_uri, dict, opacity_att, NULL);
}
void
xps_parse_path(xps_document *doc, fz_matrix ctm, char *base_uri, xps_resource *dict, xml_element *root)
{
xml_element *node;
char *fill_uri;
char *stroke_uri;
char *opacity_mask_uri;
char *transform_att;
char *clip_att;
char *data_att;
char *fill_att;
char *stroke_att;
char *opacity_att;
char *opacity_mask_att;
xml_element *transform_tag = NULL;
xml_element *clip_tag = NULL;
xml_element *data_tag = NULL;
xml_element *fill_tag = NULL;
xml_element *stroke_tag = NULL;
xml_element *opacity_mask_tag = NULL;
char *fill_opacity_att = NULL;
char *stroke_opacity_att = NULL;
char *stroke_dash_array_att;
char *stroke_dash_cap_att;
char *stroke_dash_offset_att;
char *stroke_end_line_cap_att;
char *stroke_start_line_cap_att;
char *stroke_line_join_att;
char *stroke_miter_limit_att;
char *stroke_thickness_att;
char *navigate_uri_att;
fz_stroke_state stroke;
fz_matrix transform;
float samples[32];
fz_colorspace *colorspace;
fz_path *path;
fz_rect area;
int fill_rule;
/*
* Extract attributes and extended attributes.
*/
transform_att = xml_att(root, "RenderTransform");
clip_att = xml_att(root, "Clip");
data_att = xml_att(root, "Data");
fill_att = xml_att(root, "Fill");
stroke_att = xml_att(root, "Stroke");
opacity_att = xml_att(root, "Opacity");
opacity_mask_att = xml_att(root, "OpacityMask");
stroke_dash_array_att = xml_att(root, "StrokeDashArray");
stroke_dash_cap_att = xml_att(root, "StrokeDashCap");
stroke_dash_offset_att = xml_att(root, "StrokeDashOffset");
stroke_end_line_cap_att = xml_att(root, "StrokeEndLineCap");
stroke_start_line_cap_att = xml_att(root, "StrokeStartLineCap");
stroke_line_join_att = xml_att(root, "StrokeLineJoin");
stroke_miter_limit_att = xml_att(root, "StrokeMiterLimit");
stroke_thickness_att = xml_att(root, "StrokeThickness");
navigate_uri_att = xml_att(root, "FixedPage.NavigateUri");
for (node = xml_down(root); node; node = xml_next(node))
{
if (!strcmp(xml_tag(node), "Path.RenderTransform"))
transform_tag = xml_down(node);
if (!strcmp(xml_tag(node), "Path.OpacityMask"))
opacity_mask_tag = xml_down(node);
if (!strcmp(xml_tag(node), "Path.Clip"))
clip_tag = xml_down(node);
if (!strcmp(xml_tag(node), "Path.Fill"))
fill_tag = xml_down(node);
if (!strcmp(xml_tag(node), "Path.Stroke"))
stroke_tag = xml_down(node);
if (!strcmp(xml_tag(node), "Path.Data"))
data_tag = xml_down(node);
}
fill_uri = base_uri;
stroke_uri = base_uri;
opacity_mask_uri = base_uri;
xps_resolve_resource_reference(doc, dict, &data_att, &data_tag, NULL);
xps_resolve_resource_reference(doc, dict, &clip_att, &clip_tag, NULL);
xps_resolve_resource_reference(doc, dict, &transform_att, &transform_tag, NULL);
xps_resolve_resource_reference(doc, dict, &fill_att, &fill_tag, &fill_uri);
xps_resolve_resource_reference(doc, dict, &stroke_att, &stroke_tag, &stroke_uri);
xps_resolve_resource_reference(doc, dict, &opacity_mask_att, &opacity_mask_tag, &opacity_mask_uri);
/*
* Act on the information we have gathered:
*/
if (!data_att && !data_tag)
return;
if (fill_tag && !strcmp(xml_tag(fill_tag), "SolidColorBrush"))
{
fill_opacity_att = xml_att(fill_tag, "Opacity");
fill_att = xml_att(fill_tag, "Color");
fill_tag = NULL;
}
if (stroke_tag && !strcmp(xml_tag(stroke_tag), "SolidColorBrush"))
{
stroke_opacity_att = xml_att(stroke_tag, "Opacity");
stroke_att = xml_att(stroke_tag, "Color");
stroke_tag = NULL;
}
stroke.start_cap = xps_parse_line_cap(stroke_start_line_cap_att);
stroke.dash_cap = xps_parse_line_cap(stroke_dash_cap_att);
stroke.end_cap = xps_parse_line_cap(stroke_end_line_cap_att);
stroke.linejoin = FZ_LINEJOIN_MITER_XPS;
if (stroke_line_join_att)
{
if (!strcmp(stroke_line_join_att, "Miter")) stroke.linejoin = FZ_LINEJOIN_MITER_XPS;
if (!strcmp(stroke_line_join_att, "Round")) stroke.linejoin = FZ_LINEJOIN_ROUND;
if (!strcmp(stroke_line_join_att, "Bevel")) stroke.linejoin = FZ_LINEJOIN_BEVEL;
}
stroke.miterlimit = 10;
if (stroke_miter_limit_att)
stroke.miterlimit = fz_atof(stroke_miter_limit_att);
stroke.linewidth = 1;
if (stroke_thickness_att)
stroke.linewidth = fz_atof(stroke_thickness_att);
stroke.dash_phase = 0;
stroke.dash_len = 0;
if (stroke_dash_array_att)
{
char *s = stroke_dash_array_att;
if (stroke_dash_offset_att)
stroke.dash_phase = fz_atof(stroke_dash_offset_att) * stroke.linewidth;
while (*s && stroke.dash_len < nelem(stroke.dash_list))
{
while (*s == ' ')
s++;
if (*s) /* needed in case of a space before the last quote */
stroke.dash_list[stroke.dash_len++] = fz_atof(s) * stroke.linewidth;
while (*s && *s != ' ')
s++;
}
}
transform = fz_identity;
if (transform_att)
xps_parse_render_transform(doc, transform_att, &transform);
if (transform_tag)
xps_parse_matrix_transform(doc, transform_tag, &transform);
ctm = fz_concat(transform, ctm);
if (clip_att || clip_tag)
xps_clip(doc, ctm, dict, clip_att, clip_tag);
fill_rule = 0;
if (data_att)
path = xps_parse_abbreviated_geometry(doc, data_att, &fill_rule);
else if (data_tag)
path = xps_parse_path_geometry(doc, dict, data_tag, 0, &fill_rule);
if (stroke_att || stroke_tag)
area = fz_bound_path(doc->ctx, path, &stroke, ctm);
else
area = fz_bound_path(doc->ctx, path, NULL, ctm);
if (navigate_uri_att)
xps_add_link(doc, area, base_uri, navigate_uri_att);
xps_begin_opacity(doc, ctm, area, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
if (fill_att)
{
xps_parse_color(doc, base_uri, fill_att, &colorspace, samples);
if (fill_opacity_att)
samples[0] = fz_atof(fill_opacity_att);
xps_set_color(doc, colorspace, samples);
fz_fill_path(doc->dev, path, fill_rule == 0, ctm,
doc->colorspace, doc->color, doc->alpha);
}
if (fill_tag)
{
area = fz_bound_path(doc->ctx, path, NULL, ctm);
fz_clip_path(doc->dev, path, NULL, fill_rule == 0, ctm);
xps_parse_brush(doc, ctm, area, fill_uri, dict, fill_tag);
fz_pop_clip(doc->dev);
}
if (stroke_att)
{
xps_parse_color(doc, base_uri, stroke_att, &colorspace, samples);
if (stroke_opacity_att)
samples[0] = fz_atof(stroke_opacity_att);
xps_set_color(doc, colorspace, samples);
fz_stroke_path(doc->dev, path, &stroke, ctm,
doc->colorspace, doc->color, doc->alpha);
}
if (stroke_tag)
{
fz_clip_stroke_path(doc->dev, path, NULL, &stroke, ctm);
xps_parse_brush(doc, ctm, area, stroke_uri, dict, stroke_tag);
fz_pop_clip(doc->dev);
}
xps_end_opacity(doc, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
fz_free_path(doc->ctx, path);
path = NULL;
if (clip_att || clip_tag)
fz_pop_clip(doc->dev);
}
void
xps_parse_path(xps_document *doc, const fz_matrix *ctm, char *base_uri, xps_resource *dict, fz_xml *root)
{
fz_xml *node;
char *fill_uri;
char *stroke_uri;
char *opacity_mask_uri;
char *transform_att;
char *clip_att;
char *data_att;
char *fill_att;
char *stroke_att;
char *opacity_att;
char *opacity_mask_att;
fz_xml *transform_tag = NULL;
fz_xml *clip_tag = NULL;
fz_xml *data_tag = NULL;
fz_xml *fill_tag = NULL;
fz_xml *stroke_tag = NULL;
fz_xml *opacity_mask_tag = NULL;
char *fill_opacity_att = NULL;
char *stroke_opacity_att = NULL;
char *stroke_dash_array_att;
char *stroke_dash_cap_att;
char *stroke_dash_offset_att;
char *stroke_end_line_cap_att;
char *stroke_start_line_cap_att;
char *stroke_line_join_att;
char *stroke_miter_limit_att;
char *stroke_thickness_att;
char *navigate_uri_att;
fz_stroke_state *stroke = NULL;
fz_matrix transform;
float samples[32];
fz_colorspace *colorspace;
fz_path *path = NULL;
fz_path *stroke_path = NULL;
fz_rect area;
int fill_rule;
int dash_len = 0;
fz_matrix local_ctm;
/*
* Extract attributes and extended attributes.
*/
transform_att = fz_xml_att(root, "RenderTransform");
clip_att = fz_xml_att(root, "Clip");
data_att = fz_xml_att(root, "Data");
fill_att = fz_xml_att(root, "Fill");
stroke_att = fz_xml_att(root, "Stroke");
opacity_att = fz_xml_att(root, "Opacity");
opacity_mask_att = fz_xml_att(root, "OpacityMask");
stroke_dash_array_att = fz_xml_att(root, "StrokeDashArray");
stroke_dash_cap_att = fz_xml_att(root, "StrokeDashCap");
stroke_dash_offset_att = fz_xml_att(root, "StrokeDashOffset");
stroke_end_line_cap_att = fz_xml_att(root, "StrokeEndLineCap");
stroke_start_line_cap_att = fz_xml_att(root, "StrokeStartLineCap");
stroke_line_join_att = fz_xml_att(root, "StrokeLineJoin");
stroke_miter_limit_att = fz_xml_att(root, "StrokeMiterLimit");
stroke_thickness_att = fz_xml_att(root, "StrokeThickness");
navigate_uri_att = fz_xml_att(root, "FixedPage.NavigateUri");
for (node = fz_xml_down(root); node; node = fz_xml_next(node))
{
if (!strcmp(fz_xml_tag(node), "Path.RenderTransform"))
transform_tag = fz_xml_down(node);
if (!strcmp(fz_xml_tag(node), "Path.OpacityMask"))
opacity_mask_tag = fz_xml_down(node);
if (!strcmp(fz_xml_tag(node), "Path.Clip"))
clip_tag = fz_xml_down(node);
if (!strcmp(fz_xml_tag(node), "Path.Fill"))
fill_tag = fz_xml_down(node);
if (!strcmp(fz_xml_tag(node), "Path.Stroke"))
stroke_tag = fz_xml_down(node);
if (!strcmp(fz_xml_tag(node), "Path.Data"))
data_tag = fz_xml_down(node);
}
fill_uri = base_uri;
stroke_uri = base_uri;
opacity_mask_uri = base_uri;
xps_resolve_resource_reference(doc, dict, &data_att, &data_tag, NULL);
xps_resolve_resource_reference(doc, dict, &clip_att, &clip_tag, NULL);
xps_resolve_resource_reference(doc, dict, &transform_att, &transform_tag, NULL);
xps_resolve_resource_reference(doc, dict, &fill_att, &fill_tag, &fill_uri);
xps_resolve_resource_reference(doc, dict, &stroke_att, &stroke_tag, &stroke_uri);
xps_resolve_resource_reference(doc, dict, &opacity_mask_att, &opacity_mask_tag, &opacity_mask_uri);
/*
* Act on the information we have gathered:
*/
if (!data_att && !data_tag)
return;
if (fill_tag && !strcmp(fz_xml_tag(fill_tag), "SolidColorBrush"))
{
fill_opacity_att = fz_xml_att(fill_tag, "Opacity");
fill_att = fz_xml_att(fill_tag, "Color");
fill_tag = NULL;
}
if (stroke_tag && !strcmp(fz_xml_tag(stroke_tag), "SolidColorBrush"))
{
stroke_opacity_att = fz_xml_att(stroke_tag, "Opacity");
stroke_att = fz_xml_att(stroke_tag, "Color");
stroke_tag = NULL;
}
if (stroke_att || stroke_tag)
{
if (stroke_dash_array_att)
{
char *s = stroke_dash_array_att;
while (*s)
{
while (*s == ' ')
s++;
if (*s) /* needed in case of a space before the last quote */
dash_len++;
while (*s && *s != ' ')
s++;
}
}
stroke = fz_new_stroke_state_with_len(doc->ctx, dash_len);
stroke->start_cap = xps_parse_line_cap(stroke_start_line_cap_att);
stroke->dash_cap = xps_parse_line_cap(stroke_dash_cap_att);
stroke->end_cap = xps_parse_line_cap(stroke_end_line_cap_att);
stroke->linejoin = FZ_LINEJOIN_MITER_XPS;
if (stroke_line_join_att)
{
if (!strcmp(stroke_line_join_att, "Miter")) stroke->linejoin = FZ_LINEJOIN_MITER_XPS;
if (!strcmp(stroke_line_join_att, "Round")) stroke->linejoin = FZ_LINEJOIN_ROUND;
if (!strcmp(stroke_line_join_att, "Bevel")) stroke->linejoin = FZ_LINEJOIN_BEVEL;
}
stroke->miterlimit = 10;
if (stroke_miter_limit_att)
stroke->miterlimit = fz_atof(stroke_miter_limit_att);
stroke->linewidth = 1;
if (stroke_thickness_att)
stroke->linewidth = fz_atof(stroke_thickness_att);
stroke->dash_phase = 0;
stroke->dash_len = 0;
if (stroke_dash_array_att)
{
char *s = stroke_dash_array_att;
if (stroke_dash_offset_att)
stroke->dash_phase = fz_atof(stroke_dash_offset_att) * stroke->linewidth;
while (*s)
{
while (*s == ' ')
s++;
if (*s) /* needed in case of a space before the last quote */
stroke->dash_list[stroke->dash_len++] = fz_atof(s) * stroke->linewidth;
while (*s && *s != ' ')
s++;
}
/* cf. https://code.google.com/p/sumatrapdf/issues/detail?id=2339 */
if (dash_len > 0)
{
float phase_len = 0.0f;
int i;
for (i = 0; i < dash_len; i++)
phase_len += stroke->dash_list[i];
if (phase_len == 0.0f)
dash_len = 0;
}
stroke->dash_len = dash_len;
}
}
transform = fz_identity;
if (transform_att)
xps_parse_render_transform(doc, transform_att, &transform);
if (transform_tag)
xps_parse_matrix_transform(doc, transform_tag, &transform);
fz_concat(&local_ctm, &transform, ctm);
if (clip_att || clip_tag)
xps_clip(doc, &local_ctm, dict, clip_att, clip_tag);
fill_rule = 0;
if (data_att)
path = xps_parse_abbreviated_geometry(doc, data_att, &fill_rule);
else if (data_tag)
{
path = xps_parse_path_geometry(doc, dict, data_tag, 0, &fill_rule);
if (stroke_att || stroke_tag)
stroke_path = xps_parse_path_geometry(doc, dict, data_tag, 1, &fill_rule);
}
if (!stroke_path)
stroke_path = path;
if (stroke_att || stroke_tag)
{
fz_bound_path(doc->ctx, stroke_path, stroke, &local_ctm, &area);
if (stroke_path != path && (fill_att || fill_tag)) {
fz_rect bounds;
fz_bound_path(doc->ctx, path, NULL, &local_ctm, &bounds);
fz_union_rect(&area, &bounds);
}
}
else
fz_bound_path(doc->ctx, path, NULL, &local_ctm, &area);
/* SumatraPDF: extended link support */
xps_extract_anchor_info(doc, &area, navigate_uri_att, fz_xml_att(root, "Name"), 0);
navigate_uri_att = NULL;
if (navigate_uri_att)
xps_add_link(doc, &area, base_uri, navigate_uri_att);
xps_begin_opacity(doc, &local_ctm, &area, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
if (fill_att)
{
xps_parse_color(doc, base_uri, fill_att, &colorspace, samples);
if (fill_opacity_att)
samples[0] *= fz_atof(fill_opacity_att);
xps_set_color(doc, colorspace, samples);
fz_fill_path(doc->dev, path, fill_rule == 0, &local_ctm,
doc->colorspace, doc->color, doc->alpha);
}
if (fill_tag)
{
fz_clip_path(doc->dev, path, NULL, fill_rule == 0, &local_ctm);
xps_parse_brush(doc, &local_ctm, &area, fill_uri, dict, fill_tag);
fz_pop_clip(doc->dev);
}
if (stroke_att)
{
xps_parse_color(doc, base_uri, stroke_att, &colorspace, samples);
if (stroke_opacity_att)
samples[0] *= fz_atof(stroke_opacity_att);
xps_set_color(doc, colorspace, samples);
fz_stroke_path(doc->dev, stroke_path, stroke, &local_ctm,
doc->colorspace, doc->color, doc->alpha);
}
if (stroke_tag)
{
fz_clip_stroke_path(doc->dev, stroke_path, NULL, stroke, &local_ctm);
xps_parse_brush(doc, &local_ctm, &area, stroke_uri, dict, stroke_tag);
fz_pop_clip(doc->dev);
}
xps_end_opacity(doc, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
if (stroke_path != path)
fz_free_path(doc->ctx, stroke_path);
fz_free_path(doc->ctx, path);
path = NULL;
fz_drop_stroke_state(doc->ctx, stroke);
if (clip_att || clip_tag)
fz_pop_clip(doc->dev);
}
static void
xps_parse_gradient_brush(xps_document *doc, fz_matrix ctm, fz_rect area,
char *base_uri, xps_resource *dict, fz_xml *root,
void (*draw)(xps_document *, fz_matrix, fz_rect, struct stop *, int, fz_xml *, int))
{
fz_xml *node;
char *opacity_att;
char *interpolation_att;
char *spread_att;
char *mapping_att;
char *transform_att;
fz_xml *transform_tag = NULL;
fz_xml *stop_tag = NULL;
struct stop stop_list[MAX_STOPS];
int stop_count;
fz_matrix transform;
int spread_method;
opacity_att = fz_xml_att(root, "Opacity");
interpolation_att = fz_xml_att(root, "ColorInterpolationMode");
spread_att = fz_xml_att(root, "SpreadMethod");
mapping_att = fz_xml_att(root, "MappingMode");
transform_att = fz_xml_att(root, "Transform");
for (node = fz_xml_down(root); node; node = fz_xml_next(node))
{
if (!strcmp(fz_xml_tag(node), "LinearGradientBrush.Transform"))
transform_tag = fz_xml_down(node);
if (!strcmp(fz_xml_tag(node), "RadialGradientBrush.Transform"))
transform_tag = fz_xml_down(node);
if (!strcmp(fz_xml_tag(node), "LinearGradientBrush.GradientStops"))
stop_tag = fz_xml_down(node);
if (!strcmp(fz_xml_tag(node), "RadialGradientBrush.GradientStops"))
stop_tag = fz_xml_down(node);
}
xps_resolve_resource_reference(doc, dict, &transform_att, &transform_tag, NULL);
spread_method = SPREAD_PAD;
if (spread_att)
{
if (!strcmp(spread_att, "Pad"))
spread_method = SPREAD_PAD;
if (!strcmp(spread_att, "Reflect"))
spread_method = SPREAD_REFLECT;
if (!strcmp(spread_att, "Repeat"))
spread_method = SPREAD_REPEAT;
}
transform = fz_identity;
if (transform_att)
xps_parse_render_transform(doc, transform_att, &transform);
if (transform_tag)
xps_parse_matrix_transform(doc, transform_tag, &transform);
ctm = fz_concat(transform, ctm);
if (!stop_tag) {
fz_warn(doc->ctx, "missing gradient stops tag");
return;
}
stop_count = xps_parse_gradient_stops(doc, base_uri, stop_tag, stop_list, MAX_STOPS);
if (stop_count == 0)
{
fz_warn(doc->ctx, "no gradient stops found");
return;
}
xps_begin_opacity(doc, ctm, area, base_uri, dict, opacity_att, NULL);
draw(doc, ctm, area, stop_list, stop_count, root, spread_method);
xps_end_opacity(doc, base_uri, dict, opacity_att, NULL);
}
void
xps_parse_path(fz_context *ctx, xps_document *doc, fz_matrix ctm, char *base_uri, xps_resource *dict, fz_xml *root)
{
fz_device *dev = doc->dev;
fz_xml *node;
char *fill_uri;
char *stroke_uri;
char *opacity_mask_uri;
char *transform_att;
char *clip_att;
char *data_att;
char *fill_att;
char *stroke_att;
char *opacity_att;
char *opacity_mask_att;
fz_xml *transform_tag = NULL;
fz_xml *clip_tag = NULL;
fz_xml *data_tag = NULL;
fz_xml *fill_tag = NULL;
fz_xml *stroke_tag = NULL;
fz_xml *opacity_mask_tag = NULL;
char *fill_opacity_att = NULL;
char *stroke_opacity_att = NULL;
char *stroke_dash_array_att;
char *stroke_dash_cap_att;
char *stroke_dash_offset_att;
char *stroke_end_line_cap_att;
char *stroke_start_line_cap_att;
char *stroke_line_join_att;
char *stroke_miter_limit_att;
char *stroke_thickness_att;
fz_stroke_state *stroke = NULL;
float samples[FZ_MAX_COLORS];
fz_colorspace *colorspace;
fz_path *path = NULL;
fz_path *stroke_path = NULL;
fz_rect area;
int fill_rule;
int dash_len = 0;
/*
* Extract attributes and extended attributes.
*/
transform_att = fz_xml_att(root, "RenderTransform");
clip_att = fz_xml_att(root, "Clip");
data_att = fz_xml_att(root, "Data");
fill_att = fz_xml_att(root, "Fill");
stroke_att = fz_xml_att(root, "Stroke");
opacity_att = fz_xml_att(root, "Opacity");
opacity_mask_att = fz_xml_att(root, "OpacityMask");
stroke_dash_array_att = fz_xml_att(root, "StrokeDashArray");
stroke_dash_cap_att = fz_xml_att(root, "StrokeDashCap");
stroke_dash_offset_att = fz_xml_att(root, "StrokeDashOffset");
stroke_end_line_cap_att = fz_xml_att(root, "StrokeEndLineCap");
stroke_start_line_cap_att = fz_xml_att(root, "StrokeStartLineCap");
stroke_line_join_att = fz_xml_att(root, "StrokeLineJoin");
stroke_miter_limit_att = fz_xml_att(root, "StrokeMiterLimit");
stroke_thickness_att = fz_xml_att(root, "StrokeThickness");
for (node = fz_xml_down(root); node; node = fz_xml_next(node))
{
if (fz_xml_is_tag(node, "Path.RenderTransform"))
transform_tag = fz_xml_down(node);
if (fz_xml_is_tag(node, "Path.OpacityMask"))
opacity_mask_tag = fz_xml_down(node);
if (fz_xml_is_tag(node, "Path.Clip"))
clip_tag = fz_xml_down(node);
if (fz_xml_is_tag(node, "Path.Fill"))
fill_tag = fz_xml_down(node);
if (fz_xml_is_tag(node, "Path.Stroke"))
stroke_tag = fz_xml_down(node);
if (fz_xml_is_tag(node, "Path.Data"))
data_tag = fz_xml_down(node);
}
fill_uri = base_uri;
stroke_uri = base_uri;
opacity_mask_uri = base_uri;
xps_resolve_resource_reference(ctx, doc, dict, &data_att, &data_tag, NULL);
xps_resolve_resource_reference(ctx, doc, dict, &clip_att, &clip_tag, NULL);
xps_resolve_resource_reference(ctx, doc, dict, &transform_att, &transform_tag, NULL);
xps_resolve_resource_reference(ctx, doc, dict, &fill_att, &fill_tag, &fill_uri);
xps_resolve_resource_reference(ctx, doc, dict, &stroke_att, &stroke_tag, &stroke_uri);
xps_resolve_resource_reference(ctx, doc, dict, &opacity_mask_att, &opacity_mask_tag, &opacity_mask_uri);
/*
* Act on the information we have gathered:
*/
if (!data_att && !data_tag)
return;
if (fz_xml_is_tag(fill_tag, "SolidColorBrush"))
{
fill_opacity_att = fz_xml_att(fill_tag, "Opacity");
fill_att = fz_xml_att(fill_tag, "Color");
fill_tag = NULL;
}
if (fz_xml_is_tag(stroke_tag, "SolidColorBrush"))
{
stroke_opacity_att = fz_xml_att(stroke_tag, "Opacity");
stroke_att = fz_xml_att(stroke_tag, "Color");
stroke_tag = NULL;
}
if (stroke_att || stroke_tag)
{
if (stroke_dash_array_att)
{
char *s = stroke_dash_array_att;
while (*s)
{
while (*s == ' ')
s++;
if (*s) /* needed in case of a space before the last quote */
dash_len++;
while (*s && *s != ' ')
s++;
}
}
stroke = fz_new_stroke_state_with_dash_len(ctx, dash_len);
stroke->start_cap = xps_parse_line_cap(stroke_start_line_cap_att);
stroke->dash_cap = xps_parse_line_cap(stroke_dash_cap_att);
stroke->end_cap = xps_parse_line_cap(stroke_end_line_cap_att);
stroke->linejoin = FZ_LINEJOIN_MITER_XPS;
if (stroke_line_join_att)
{
if (!strcmp(stroke_line_join_att, "Miter")) stroke->linejoin = FZ_LINEJOIN_MITER_XPS;
if (!strcmp(stroke_line_join_att, "Round")) stroke->linejoin = FZ_LINEJOIN_ROUND;
if (!strcmp(stroke_line_join_att, "Bevel")) stroke->linejoin = FZ_LINEJOIN_BEVEL;
}
stroke->miterlimit = 10;
if (stroke_miter_limit_att)
stroke->miterlimit = fz_atof(stroke_miter_limit_att);
stroke->linewidth = 1;
if (stroke_thickness_att)
stroke->linewidth = fz_atof(stroke_thickness_att);
stroke->dash_phase = 0;
stroke->dash_len = 0;
if (stroke_dash_array_att)
{
char *s = stroke_dash_array_att;
if (stroke_dash_offset_att)
stroke->dash_phase = fz_atof(stroke_dash_offset_att) * stroke->linewidth;
while (*s)
{
while (*s == ' ')
s++;
if (*s) /* needed in case of a space before the last quote */
stroke->dash_list[stroke->dash_len++] = fz_atof(s) * stroke->linewidth;
while (*s && *s != ' ')
s++;
}
if (dash_len > 0)
{
/* fz_stroke_path doesn't draw non-empty paths with phase length zero */
float phase_len = 0;
int i;
for (i = 0; i < dash_len; i++)
phase_len += stroke->dash_list[i];
if (phase_len == 0)
dash_len = 0;
}
stroke->dash_len = dash_len;
}
}
ctm = xps_parse_transform(ctx, doc, transform_att, transform_tag, ctm);
if (clip_att || clip_tag)
xps_clip(ctx, doc, ctm, dict, clip_att, clip_tag);
fz_try(ctx)
{
fill_rule = 0;
if (data_att)
path = xps_parse_abbreviated_geometry(ctx, doc, data_att, &fill_rule);
else if (data_tag)
{
path = xps_parse_path_geometry(ctx, doc, dict, data_tag, 0, &fill_rule);
// /home/sebras/src/jxr/fts_06xx.xps
if (stroke_att || stroke_tag)
stroke_path = xps_parse_path_geometry(ctx, doc, dict, data_tag, 1, &fill_rule);
}
if (!stroke_path)
stroke_path = path;
if (stroke_att || stroke_tag)
{
area = fz_bound_path(ctx, stroke_path, stroke, ctm);
if (stroke_path != path && (fill_att || fill_tag)) {
fz_rect bounds = fz_bound_path(ctx, path, NULL, ctm);
area = fz_union_rect(area, bounds);
}
}
else
area = fz_bound_path(ctx, path, NULL, ctm);
xps_begin_opacity(ctx, doc, ctm, area, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
if (fill_att)
{
xps_parse_color(ctx, doc, base_uri, fill_att, &colorspace, samples);
if (fill_opacity_att)
samples[0] *= fz_atof(fill_opacity_att);
xps_set_color(ctx, doc, colorspace, samples);
fz_fill_path(ctx, dev, path, fill_rule == 0, ctm,
doc->colorspace, doc->color, doc->alpha, NULL);
}
if (fill_tag)
{
fz_clip_path(ctx, dev, path, fill_rule == 0, ctm, area);
xps_parse_brush(ctx, doc, ctm, area, fill_uri, dict, fill_tag);
fz_pop_clip(ctx, dev);
}
if (stroke_att)
{
xps_parse_color(ctx, doc, base_uri, stroke_att, &colorspace, samples);
if (stroke_opacity_att)
samples[0] *= fz_atof(stroke_opacity_att);
xps_set_color(ctx, doc, colorspace, samples);
fz_stroke_path(ctx, dev, stroke_path, stroke, ctm,
doc->colorspace, doc->color, doc->alpha, NULL);
}
if (stroke_tag)
{
fz_clip_stroke_path(ctx, dev, stroke_path, stroke, ctm, area);
xps_parse_brush(ctx, doc, ctm, area, stroke_uri, dict, stroke_tag);
fz_pop_clip(ctx, dev);
}
xps_end_opacity(ctx, doc, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
}
fz_always(ctx)
{
if (stroke_path != path)
fz_drop_path(ctx, stroke_path);
fz_drop_path(ctx, path);
fz_drop_stroke_state(ctx, stroke);
}
fz_catch(ctx)
fz_rethrow(ctx);
if (clip_att || clip_tag)
fz_pop_clip(ctx, dev);
}
void
xps_parse_canvas(xps_document *doc, const fz_matrix *ctm, const fz_rect *area, char *base_uri, xps_resource *dict, fz_xml *root)
{
xps_resource *new_dict = NULL;
fz_xml *node;
char *opacity_mask_uri;
char *transform_att;
char *clip_att;
char *opacity_att;
char *opacity_mask_att;
char *navigate_uri_att;
fz_xml *transform_tag = NULL;
fz_xml *clip_tag = NULL;
fz_xml *opacity_mask_tag = NULL;
fz_matrix transform;
transform_att = fz_xml_att(root, "RenderTransform");
clip_att = fz_xml_att(root, "Clip");
opacity_att = fz_xml_att(root, "Opacity");
opacity_mask_att = fz_xml_att(root, "OpacityMask");
navigate_uri_att = fz_xml_att(root, "FixedPage.NavigateUri");
for (node = fz_xml_down(root); node; node = fz_xml_next(node))
{
if (!strcmp(fz_xml_tag(node), "Canvas.Resources") && fz_xml_down(node))
{
if (new_dict)
{
fz_warn(doc->ctx, "ignoring follow-up resource dictionaries");
}
else
{
new_dict = xps_parse_resource_dictionary(doc, base_uri, fz_xml_down(node));
if (new_dict)
{
new_dict->parent = dict;
dict = new_dict;
}
}
}
if (!strcmp(fz_xml_tag(node), "Canvas.RenderTransform"))
transform_tag = fz_xml_down(node);
if (!strcmp(fz_xml_tag(node), "Canvas.Clip"))
clip_tag = fz_xml_down(node);
if (!strcmp(fz_xml_tag(node), "Canvas.OpacityMask"))
opacity_mask_tag = fz_xml_down(node);
}
opacity_mask_uri = base_uri;
xps_resolve_resource_reference(doc, dict, &transform_att, &transform_tag, NULL);
xps_resolve_resource_reference(doc, dict, &clip_att, &clip_tag, NULL);
xps_resolve_resource_reference(doc, dict, &opacity_mask_att, &opacity_mask_tag, &opacity_mask_uri);
transform = fz_identity;
if (transform_att)
xps_parse_render_transform(doc, transform_att, &transform);
if (transform_tag)
xps_parse_matrix_transform(doc, transform_tag, &transform);
fz_concat(&transform, &transform, ctm);
/* SumatraPDF: extended link support */
xps_extract_anchor_info(doc, &fz_empty_rect, navigate_uri_att, NULL, 1);
navigate_uri_att = NULL;
if (navigate_uri_att)
xps_add_link(doc, area, base_uri, navigate_uri_att);
if (clip_att || clip_tag)
xps_clip(doc, &transform, dict, clip_att, clip_tag);
xps_begin_opacity(doc, &transform, area, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
for (node = fz_xml_down(root); node; node = fz_xml_next(node))
{
xps_parse_element(doc, &transform, area, base_uri, dict, node);
}
xps_end_opacity(doc, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
/* SumatraPDF: extended link support */
xps_extract_anchor_info(doc, area, NULL, fz_xml_att(root, "Name"), 2);
if (clip_att || clip_tag)
fz_pop_clip(doc->dev);
if (new_dict)
xps_free_resource_dictionary(doc, new_dict);
}
void
xps_parse_tiling_brush(xps_context *ctx, fz_matrix ctm, fz_rect area,
char *base_uri, xps_resource *dict, xml_element *root,
void (*func)(xps_context*, fz_matrix, fz_rect, char*, xps_resource*, xml_element*, void*), void *user)
{
xml_element *node;
struct closure c;
char *opacity_att;
char *transform_att;
char *viewbox_att;
char *viewport_att;
char *tile_mode_att;
char *viewbox_units_att;
char *viewport_units_att;
xml_element *transform_tag = NULL;
fz_matrix transform;
fz_rect viewbox;
fz_rect viewport;
float xstep, ystep;
float xscale, yscale;
int tile_mode;
opacity_att = xml_att(root, "Opacity");
transform_att = xml_att(root, "Transform");
viewbox_att = xml_att(root, "Viewbox");
viewport_att = xml_att(root, "Viewport");
tile_mode_att = xml_att(root, "TileMode");
viewbox_units_att = xml_att(root, "ViewboxUnits");
viewport_units_att = xml_att(root, "ViewportUnits");
c.base_uri = base_uri;
c.dict = dict;
c.root = root;
c.user = user;
c.func = func;
for (node = xml_down(root); node; node = xml_next(node))
{
if (!strcmp(xml_tag(node), "ImageBrush.Transform"))
transform_tag = xml_down(node);
if (!strcmp(xml_tag(node), "VisualBrush.Transform"))
transform_tag = xml_down(node);
}
xps_resolve_resource_reference(ctx, dict, &transform_att, &transform_tag, NULL);
transform = fz_identity;
if (transform_att)
xps_parse_render_transform(ctx, transform_att, &transform);
if (transform_tag)
xps_parse_matrix_transform(ctx, transform_tag, &transform);
ctm = fz_concat(transform, ctm);
viewbox = fz_unit_rect;
if (viewbox_att)
xps_parse_rectangle(ctx, viewbox_att, &viewbox);
viewport = fz_unit_rect;
if (viewport_att)
xps_parse_rectangle(ctx, viewport_att, &viewport);
/* some sanity checks on the viewport/viewbox size */
if (fabsf(viewport.x1 - viewport.x0) < 0.01f) return;
if (fabsf(viewport.y1 - viewport.y0) < 0.01f) return;
if (fabsf(viewbox.x1 - viewbox.x0) < 0.01f) return;
if (fabsf(viewbox.y1 - viewbox.y0) < 0.01f) return;
xstep = viewbox.x1 - viewbox.x0;
ystep = viewbox.y1 - viewbox.y0;
xscale = (viewport.x1 - viewport.x0) / xstep;
yscale = (viewport.y1 - viewport.y0) / ystep;
tile_mode = TILE_NONE;
if (tile_mode_att)
{
if (!strcmp(tile_mode_att, "None"))
tile_mode = TILE_NONE;
if (!strcmp(tile_mode_att, "Tile"))
tile_mode = TILE_TILE;
if (!strcmp(tile_mode_att, "FlipX"))
tile_mode = TILE_FLIP_X;
if (!strcmp(tile_mode_att, "FlipY"))
tile_mode = TILE_FLIP_Y;
if (!strcmp(tile_mode_att, "FlipXY"))
tile_mode = TILE_FLIP_X_Y;
}
if (tile_mode == TILE_FLIP_X || tile_mode == TILE_FLIP_X_Y)
xstep *= 2;
if (tile_mode == TILE_FLIP_Y || tile_mode == TILE_FLIP_X_Y)
ystep *= 2;
xps_begin_opacity(ctx, ctm, area, base_uri, dict, opacity_att, NULL);
ctm = fz_concat(fz_translate(viewport.x0, viewport.y0), ctm);
ctm = fz_concat(fz_scale(xscale, yscale), ctm);
ctm = fz_concat(fz_translate(-viewbox.x0, -viewbox.y0), ctm);
if (tile_mode != TILE_NONE)
{
int x0, y0, x1, y1;
fz_matrix invctm = fz_invert_matrix(ctm);
area = fz_transform_rect(invctm, area);
x0 = floorf(area.x0 / xstep);
y0 = floorf(area.y0 / ystep);
x1 = ceilf(area.x1 / xstep);
y1 = ceilf(area.y1 / ystep);
#ifdef TILE
if ((x1 - x0) * (y1 - y0) > 1)
#else
if (0)
#endif
{
fz_rect bigview = viewbox;
bigview.x1 = bigview.x0 + xstep;
bigview.y1 = bigview.y0 + ystep;
fz_begin_tile(ctx->dev, area, bigview, xstep, ystep, ctm);
xps_paint_tiling_brush(ctx, ctm, viewbox, tile_mode, &c);
fz_end_tile(ctx->dev);
}
else
{
int x, y;
for (y = y0; y < y1; y++)
{
for (x = x0; x < x1; x++)
{
fz_matrix ttm = fz_concat(fz_translate(xstep * x, ystep * y), ctm);
xps_paint_tiling_brush(ctx, ttm, viewbox, tile_mode, &c);
}
}
}
}
else
{
xps_paint_tiling_brush(ctx, ctm, viewbox, tile_mode, &c);
}
xps_end_opacity(ctx, base_uri, dict, opacity_att, NULL);
}
void
xps_parse_canvas(xps_context *ctx, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, xml_element *root)
{
xps_resource *new_dict = NULL;
xml_element *node;
char *opacity_mask_uri;
int code;
char *transform_att;
char *clip_att;
char *opacity_att;
char *opacity_mask_att;
xml_element *transform_tag = NULL;
xml_element *clip_tag = NULL;
xml_element *opacity_mask_tag = NULL;
fz_matrix transform;
transform_att = xml_att(root, "RenderTransform");
clip_att = xml_att(root, "Clip");
opacity_att = xml_att(root, "Opacity");
opacity_mask_att = xml_att(root, "OpacityMask");
for (node = xml_down(root); node; node = xml_next(node))
{
if (!strcmp(xml_tag(node), "Canvas.Resources") && xml_down(node))
{
code = xps_parse_resource_dictionary(ctx, &new_dict, base_uri, xml_down(node));
if (code)
fz_catch(code, "cannot load Canvas.Resources");
else
{
new_dict->parent = dict;
dict = new_dict;
}
}
if (!strcmp(xml_tag(node), "Canvas.RenderTransform"))
transform_tag = xml_down(node);
if (!strcmp(xml_tag(node), "Canvas.Clip"))
clip_tag = xml_down(node);
if (!strcmp(xml_tag(node), "Canvas.OpacityMask"))
opacity_mask_tag = xml_down(node);
}
opacity_mask_uri = base_uri;
xps_resolve_resource_reference(ctx, dict, &transform_att, &transform_tag, NULL);
xps_resolve_resource_reference(ctx, dict, &clip_att, &clip_tag, NULL);
xps_resolve_resource_reference(ctx, dict, &opacity_mask_att, &opacity_mask_tag, &opacity_mask_uri);
transform = fz_identity;
if (transform_att)
xps_parse_render_transform(ctx, transform_att, &transform);
if (transform_tag)
xps_parse_matrix_transform(ctx, transform_tag, &transform);
ctm = fz_concat(transform, ctm);
if (clip_att || clip_tag)
xps_clip(ctx, ctm, dict, clip_att, clip_tag);
xps_begin_opacity(ctx, ctm, area, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
for (node = xml_down(root); node; node = xml_next(node))
{
xps_parse_element(ctx, ctm, area, base_uri, dict, node);
}
xps_end_opacity(ctx, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
if (clip_att || clip_tag)
fz_pop_clip(ctx->dev);
if (new_dict)
xps_free_resource_dictionary(ctx, new_dict);
}
int
xps_parse_tiling_brush(xps_context_t *ctx, char *base_uri, xps_resource_t *dict, xps_item_t *root,
int (*func)(xps_context_t*, char*, xps_resource_t*, xps_item_t*, void*), void *user)
{
xps_item_t *node;
int code;
char *opacity_att;
char *transform_att;
char *viewbox_att;
char *viewport_att;
char *tile_mode_att;
/*char *viewbox_units_att;*/
/*char *viewport_units_att;*/
xps_item_t *transform_tag = NULL;
gs_matrix transform;
gs_rect viewbox;
gs_rect viewport;
float scalex, scaley;
int tile_mode;
opacity_att = xps_att(root, "Opacity");
transform_att = xps_att(root, "Transform");
viewbox_att = xps_att(root, "Viewbox");
viewport_att = xps_att(root, "Viewport");
tile_mode_att = xps_att(root, "TileMode");
/*viewbox_units_att = xps_att(root, "ViewboxUnits");*/
/*viewport_units_att = xps_att(root, "ViewportUnits");*/
for (node = xps_down(root); node; node = xps_next(node))
{
if (!strcmp(xps_tag(node), "ImageBrush.Transform"))
transform_tag = xps_down(node);
if (!strcmp(xps_tag(node), "VisualBrush.Transform"))
transform_tag = xps_down(node);
}
xps_resolve_resource_reference(ctx, dict, &transform_att, &transform_tag, NULL);
gs_make_identity(&transform);
if (transform_att)
xps_parse_render_transform(ctx, transform_att, &transform);
if (transform_tag)
xps_parse_matrix_transform(ctx, transform_tag, &transform);
viewbox.p.x = 0.0; viewbox.p.y = 0.0;
viewbox.q.x = 1.0; viewbox.q.y = 1.0;
if (viewbox_att)
xps_parse_rectangle(ctx, viewbox_att, &viewbox);
viewport.p.x = 0.0; viewport.p.y = 0.0;
viewport.q.x = 1.0; viewport.q.y = 1.0;
if (viewport_att)
xps_parse_rectangle(ctx, viewport_att, &viewport);
/* some sanity checks on the viewport/viewbox size */
if (fabs(viewport.q.x - viewport.p.x) < 0.01) { gs_warn("skipping tile with zero width view port"); return 0; }
if (fabs(viewport.q.y - viewport.p.y) < 0.01) { gs_warn("skipping tile with zero height view port"); return 0; }
if (fabs(viewbox.q.x - viewbox.p.x) < 0.01) { gs_warn("skipping tile with zero width view box"); return 0; }
if (fabs(viewbox.q.y - viewbox.p.y) < 0.01) { gs_warn("skipping tile with zero height view box"); return 0; }
scalex = (viewport.q.x - viewport.p.x) / (viewbox.q.x - viewbox.p.x);
scaley = (viewport.q.y - viewport.p.y) / (viewbox.q.y - viewbox.p.y);
tile_mode = TILE_NONE;
if (tile_mode_att)
{
if (!strcmp(tile_mode_att, "None"))
tile_mode = TILE_NONE;
if (!strcmp(tile_mode_att, "Tile"))
tile_mode = TILE_TILE;
if (!strcmp(tile_mode_att, "FlipX"))
tile_mode = TILE_FLIP_X;
if (!strcmp(tile_mode_att, "FlipY"))
tile_mode = TILE_FLIP_Y;
if (!strcmp(tile_mode_att, "FlipXY"))
tile_mode = TILE_FLIP_X_Y;
}
gs_gsave(ctx->pgs);
code = xps_begin_opacity(ctx, base_uri, dict, opacity_att, NULL, false, false);
if (code)
{
gs_grestore(ctx->pgs);
return gs_rethrow(code, "cannot create transparency group");
}
/* TODO(tor): check viewport and tiling to see if we can set it to TILE_NONE */
if (tile_mode != TILE_NONE)
{
struct tile_closure_s closure;
gs_client_pattern gspat;
gs_client_color gscolor;
gs_color_space *cs;
bool sa;
closure.ctx = ctx;
closure.base_uri = base_uri;
closure.dict = dict;
closure.tag = root;
closure.tile_mode = tile_mode;
closure.user = user;
closure.func = func;
closure.viewbox.p.x = viewbox.p.x;
closure.viewbox.p.y = viewbox.p.y;
closure.viewbox.q.x = viewbox.q.x;
closure.viewbox.q.y = viewbox.q.y;
gs_pattern1_init(&gspat);
uid_set_UniqueID(&gspat.uid, gs_next_ids(ctx->memory, 1));
gspat.PaintType = 1;
gspat.TilingType = 2;
gspat.PaintProc = xps_remap_pattern;
gspat.client_data = &closure;
/* We need to know if this tiling brush includes transparency.
We could do a proper scan, but for now we'll be lazy and just look
at the flag from scanning the page. */
gspat.uses_transparency = ctx->has_transparency;
gspat.XStep = viewbox.q.x - viewbox.p.x;
gspat.YStep = viewbox.q.y - viewbox.p.y;
gspat.BBox.p.x = viewbox.p.x;
gspat.BBox.p.y = viewbox.p.y;
gspat.BBox.q.x = viewbox.q.x;
gspat.BBox.q.y = viewbox.q.y;
if (tile_mode == TILE_FLIP_X || tile_mode == TILE_FLIP_X_Y)
{
gspat.BBox.q.x += gspat.XStep;
gspat.XStep *= 2;
}
if (tile_mode == TILE_FLIP_Y || tile_mode == TILE_FLIP_X_Y)
{
gspat.BBox.q.y += gspat.YStep;
gspat.YStep *= 2;
}
gs_matrix_translate(&transform, viewport.p.x, viewport.p.y, &transform);
gs_matrix_scale(&transform, scalex, scaley, &transform);
gs_matrix_translate(&transform, -viewbox.p.x, -viewbox.p.y, &transform);
cs = ctx->srgb;
gs_setcolorspace(ctx->pgs, cs);
gsicc_profile_reference(cs->cmm_icc_profile_data, 1);
sa = gs_currentstrokeadjust(ctx->pgs);
gs_setstrokeadjust(ctx->pgs, false);
gs_makepattern(&gscolor, &gspat, &transform, ctx->pgs, NULL);
gs_setpattern(ctx->pgs, &gscolor);
xps_fill(ctx);
gs_setstrokeadjust(ctx->pgs, sa);
gsicc_profile_reference(cs->cmm_icc_profile_data, -1);
/* gs_makepattern increments the pattern count stored in the color
* structure. We will discard the color struct (its on the stack)
* so we need to decrement the reference before we throw away
* the structure.
*/
gs_pattern_reference(&gscolor, -1);
}
else
{
xps_clip(ctx);
gs_concat(ctx->pgs, &transform);
gs_translate(ctx->pgs, viewport.p.x, viewport.p.y);
gs_scale(ctx->pgs, scalex, scaley);
gs_translate(ctx->pgs, -viewbox.p.x, -viewbox.p.y);
gs_moveto(ctx->pgs, viewbox.p.x, viewbox.p.y);
gs_lineto(ctx->pgs, viewbox.p.x, viewbox.q.y);
gs_lineto(ctx->pgs, viewbox.q.x, viewbox.q.y);
gs_lineto(ctx->pgs, viewbox.q.x, viewbox.p.y);
gs_closepath(ctx->pgs);
gs_clip(ctx->pgs);
gs_newpath(ctx->pgs);
code = func(ctx, base_uri, dict, root, user);
if (code < 0)
{
xps_end_opacity(ctx, base_uri, dict, opacity_att, NULL);
gs_grestore(ctx->pgs);
return gs_rethrow(code, "cannot draw tile");
}
}
xps_end_opacity(ctx, base_uri, dict, opacity_att, NULL);
gs_grestore(ctx->pgs);
return 0;
}
int
xps_parse_canvas(xps_context_t *ctx, char *base_uri, xps_resource_t *dict, xps_item_t *root)
{
xps_resource_t *new_dict = NULL;
xps_item_t *node;
char *opacity_mask_uri;
int code;
char *transform_att;
char *clip_att;
char *opacity_att;
char *opacity_mask_att;
xps_item_t *transform_tag = NULL;
xps_item_t *clip_tag = NULL;
xps_item_t *opacity_mask_tag = NULL;
gs_matrix transform;
transform_att = xps_att(root, "RenderTransform");
clip_att = xps_att(root, "Clip");
opacity_att = xps_att(root, "Opacity");
opacity_mask_att = xps_att(root, "OpacityMask");
for (node = xps_down(root); node; node = xps_next(node))
{
if (!strcmp(xps_tag(node), "Canvas.Resources") && xps_down(node))
{
code = xps_parse_resource_dictionary(ctx, &new_dict, base_uri, xps_down(node));
if (code)
return gs_rethrow(code, "cannot load Canvas.Resources");
if (new_dict && new_dict != dict)
{
new_dict->parent = dict;
dict = new_dict;
}
}
if (!strcmp(xps_tag(node), "Canvas.RenderTransform"))
transform_tag = xps_down(node);
if (!strcmp(xps_tag(node), "Canvas.Clip"))
clip_tag = xps_down(node);
if (!strcmp(xps_tag(node), "Canvas.OpacityMask"))
opacity_mask_tag = xps_down(node);
}
opacity_mask_uri = base_uri;
xps_resolve_resource_reference(ctx, dict, &transform_att, &transform_tag, NULL);
xps_resolve_resource_reference(ctx, dict, &clip_att, &clip_tag, NULL);
xps_resolve_resource_reference(ctx, dict, &opacity_mask_att, &opacity_mask_tag, &opacity_mask_uri);
gs_gsave(ctx->pgs);
gs_make_identity(&transform);
if (transform_att)
xps_parse_render_transform(ctx, transform_att, &transform);
if (transform_tag)
xps_parse_matrix_transform(ctx, transform_tag, &transform);
gs_concat(ctx->pgs, &transform);
if (clip_att || clip_tag)
{
if (clip_att)
xps_parse_abbreviated_geometry(ctx, clip_att);
if (clip_tag)
xps_parse_path_geometry(ctx, dict, clip_tag, 0);
xps_clip(ctx);
}
code = xps_begin_opacity(ctx, opacity_mask_uri, dict, opacity_att, opacity_mask_tag, false, false);
if (code)
{
gs_grestore(ctx->pgs);
return gs_rethrow(code, "cannot create transparency group");
}
for (node = xps_down(root); node; node = xps_next(node))
{
code = xps_parse_element(ctx, base_uri, dict, node);
if (code)
{
xps_end_opacity(ctx, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
gs_grestore(ctx->pgs);
return gs_rethrow(code, "cannot parse child of Canvas");
}
}
xps_end_opacity(ctx, opacity_mask_uri, dict, opacity_att, opacity_mask_tag);
gs_grestore(ctx->pgs);
if (new_dict)
xps_free_resource_dictionary(ctx, new_dict);
return 0;
}
