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#include "fitz.h"
#include "muxps.h"
#define TILE
/*
* Parse a tiling brush (visual and image brushes at this time) common
* properties. Use the callback to draw the individual tiles.
*/
enum { TILE_NONE, TILE_TILE, TILE_FLIP_X, TILE_FLIP_Y, TILE_FLIP_X_Y };
struct closure
{
char *base_uri;
xps_resource *dict;
xml_element *root;
void *user;
void (*func)(xps_context*, fz_matrix, fz_rect, char*, xps_resource*, xml_element*, void*);
};
static void
xps_paint_tiling_brush_clipped(xps_context *ctx, fz_matrix ctm, fz_rect viewbox, struct closure *c)
{
fz_path *path = fz_new_path();
fz_moveto(path, viewbox.x0, viewbox.y0);
fz_lineto(path, viewbox.x0, viewbox.y1);
fz_lineto(path, viewbox.x1, viewbox.y1);
fz_lineto(path, viewbox.x1, viewbox.y0);
fz_closepath(path);
fz_clip_path(ctx->dev, path, NULL, 0, ctm);
fz_free_path(path);
c->func(ctx, ctm, viewbox, c->base_uri, c->dict, c->root, c->user);
fz_pop_clip(ctx->dev);
}
static void
xps_paint_tiling_brush(xps_context *ctx, fz_matrix ctm, fz_rect viewbox, int tile_mode, struct closure *c)
{
fz_matrix ttm;
xps_paint_tiling_brush_clipped(ctx, ctm, viewbox, c);
if (tile_mode == TILE_FLIP_X || tile_mode == TILE_FLIP_X_Y)
{
ttm = fz_concat(fz_translate(viewbox.x1 * 2, 0), ctm);
ttm = fz_concat(fz_scale(-1, 1), ttm);
xps_paint_tiling_brush_clipped(ctx, ttm, viewbox, c);
}
if (tile_mode == TILE_FLIP_Y || tile_mode == TILE_FLIP_X_Y)
{
ttm = fz_concat(fz_translate(0, viewbox.y1 * 2), ctm);
ttm = fz_concat(fz_scale(1, -1), ttm);
xps_paint_tiling_brush_clipped(ctx, ttm, viewbox, c);
}
if (tile_mode == TILE_FLIP_X_Y)
{
ttm = fz_concat(fz_translate(viewbox.x1 * 2, viewbox.y1 * 2), ctm);
ttm = fz_concat(fz_scale(-1, -1), ttm);
xps_paint_tiling_brush_clipped(ctx, ttm, viewbox, c);
}
}
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);
}
static void
xps_paint_visual_brush(xps_context *ctx, fz_matrix ctm, fz_rect area,
char *base_uri, xps_resource *dict, xml_element *root, void *visual_tag)
{
xps_parse_element(ctx, ctm, area, base_uri, dict, (xml_element *)visual_tag);
}
void
xps_parse_visual_brush(xps_context *ctx, fz_matrix ctm, fz_rect area,
char *base_uri, xps_resource *dict, xml_element *root)
{
xml_element *node;
char *visual_uri;
char *visual_att;
xml_element *visual_tag = NULL;
visual_att = xml_att(root, "Visual");
for (node = xml_down(root); node; node = xml_next(node))
{
if (!strcmp(xml_tag(node), "VisualBrush.Visual"))
visual_tag = xml_down(node);
}
visual_uri = base_uri;
xps_resolve_resource_reference(ctx, dict, &visual_att, &visual_tag, &visual_uri);
if (visual_tag)
{
xps_parse_tiling_brush(ctx, ctm, area,
visual_uri, dict, root, xps_paint_visual_brush, visual_tag);
}
}
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_error_handle(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);
}
void
xps_parse_fixed_page(xps_context *ctx, fz_matrix ctm, xps_page *page)
{
xml_element *node;
xps_resource *dict;
char base_uri[1024];
fz_rect area;
char *s;
int code;
fz_strlcpy(base_uri, page->name, sizeof base_uri);
s = strrchr(base_uri, '/');
if (s)
s[1] = 0;
dict = NULL;
ctx->opacity_top = 0;
ctx->opacity[0] = 1;
if (!page->root)
return;
area = fz_transform_rect(fz_scale(page->width, page->height), fz_unit_rect);
for (node = xml_down(page->root); node; node = xml_next(node))
{
if (!strcmp(xml_tag(node), "FixedPage.Resources") && xml_down(node))
{
code = xps_parse_resource_dictionary(ctx, &dict, base_uri, xml_down(node));
if (code)
fz_error_handle(code, "cannot load FixedPage.Resources");
}
xps_parse_element(ctx, ctm, area, base_uri, dict, node);
}
if (dict)
{
xps_free_resource_dictionary(ctx, dict);
}
}
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