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use the new document functions in link evaluation

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We now use the data available on the document object to compute the
exact positioning of the link target.

This way we get rid of page_calculate_offset, which uses explicit GTK
calls.
This commit is contained in:
Abdo Roig-Maranges 2013-10-22 23:19:07 +02:00
parent 4a75efd4f2
commit efc7d23f92
1 changed files with 33 additions and 19 deletions
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52
links.c
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@ -11,6 +11,7 @@
#include "zathura.h"
#include "document.h"
#include "utils.h"
#include "page.h"
struct zathura_link_s {
zathura_rectangle_t position; /**< Position of the link */
@ -140,34 +141,47 @@ zathura_link_evaluate(zathura_t* zathura, zathura_link_t* link)
return;
}
page_offset_t offset;
page_calculate_offset(zathura, page, &offset);
/* compute the position with the page aligned to the top and left
of the viewport */
double pos_x=0, pos_y=0;
page_number_to_position(zathura->document, link->target.page_number,
0.0, 0.0, &pos_x, &pos_y);
if (link->target.destination_type == ZATHURA_LINK_DESTINATION_XYZ) {
if (link->target.left != -1) {
offset.x += link->target.left * zathura_document_get_scale(zathura->document);
}
/* correct to place the target position at the top of the viewport */
/* NOTE: link->target is in page units, needs to be scaled and rotated */
unsigned int cell_height=0, cell_width=0;
zathura_document_get_cell_size(zathura->document, &cell_height, &cell_width);
if (link->target.top != -1) {
offset.y += link->target.top * zathura_document_get_scale(zathura->document);
}
}
unsigned int doc_height=0, doc_width=0;
zathura_document_get_document_size(zathura->document, &doc_height, &doc_width);
zathura_jumplist_add(zathura);
/* jump to the page */
page_set(zathura, link->target.page_number);
/* move to the target position */
bool link_hadjust = true;
girara_setting_get(zathura->ui.session, "link-hadjust", &link_hadjust);
if (link_hadjust == true) {
position_set(zathura, offset.x, offset.y);
/* scale and rotate */
double scale = zathura_document_get_scale(zathura->document);
double shiftx = link->target.left * scale / (double)cell_width;
double shifty = link->target.top * scale / (double)cell_height;
page_calc_position(zathura->document, shiftx, shifty, &shiftx, &shifty);
/* shift the position or set to auto */
if (link->target.destination_type == ZATHURA_LINK_DESTINATION_XYZ &&
link->target.left != -1 && link_hadjust == true) {
pos_x += shiftx / (double)doc_width;
} else {
position_set(zathura, -1, offset.y);
pos_x = -1; /* -1 means automatic */
}
if (link->target.destination_type == ZATHURA_LINK_DESTINATION_XYZ &&
link->target.top != -1) {
pos_y += shifty / (double)doc_height;
} else {
pos_y = -1; /* -1 means automatic */
}
/* move to position */
zathura_jumplist_add(zathura);
position_set(zathura, pos_x, pos_y);
zathura_jumplist_add(zathura);
}
break;