mirror of
https://git.pwmt.org/pwmt/zathura.git
synced 2024-12-29 12:05:59 +01:00
91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
/* See LICENSE file for license and copyright information */
|
|
|
|
#include <girara.h>
|
|
#include <stdlib.h>
|
|
#include <gtk/gtk.h>
|
|
|
|
#include "callbacks.h"
|
|
#include "zathura.h"
|
|
#include "render.h"
|
|
#include "document.h"
|
|
#include "utils.h"
|
|
|
|
gboolean
|
|
cb_destroy(GtkWidget* UNUSED(widget), gpointer UNUSED(data))
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
buffer_changed(girara_session_t* session)
|
|
{
|
|
g_return_if_fail(session != NULL);
|
|
g_return_if_fail(session->global.data != NULL);
|
|
|
|
zathura_t* zathura = session->global.data;
|
|
|
|
char* buffer = girara_buffer_get(session);
|
|
|
|
if (buffer) {
|
|
girara_statusbar_item_set_text(session, zathura->ui.statusbar.buffer, buffer);
|
|
free(buffer);
|
|
} else {
|
|
girara_statusbar_item_set_text(session, zathura->ui.statusbar.buffer, "");
|
|
}
|
|
}
|
|
|
|
void
|
|
cb_view_vadjustment_value_changed(GtkAdjustment *adjustment, gpointer data)
|
|
{
|
|
zathura_t* zathura = data;
|
|
if (!zathura || !zathura->document || !zathura->document->pages || !zathura->ui.page_view) {
|
|
return;
|
|
}
|
|
|
|
/* get current adjustment values */
|
|
gdouble lower = gtk_adjustment_get_value(adjustment);
|
|
gdouble upper = lower + gtk_adjustment_get_page_size(adjustment);
|
|
|
|
/* find page that fits */
|
|
for (unsigned int page_id = 0; page_id < zathura->document->number_of_pages; page_id++)
|
|
{
|
|
zathura_page_t* page = zathura->document->pages[page_id];
|
|
|
|
page_offset_t* offset = page_calculate_offset(page);
|
|
if (offset == NULL) {
|
|
continue;
|
|
}
|
|
|
|
double begin = offset->y;
|
|
double end = offset->y + page->height;
|
|
|
|
if ( ( (begin >= lower) && (end <= upper) ) /* [> page is in viewport <]*/
|
|
|| ( (begin <= lower) && (end >= lower) && (end <= upper) ) /* [> end of the page is in viewport <] */
|
|
|| ( (begin >= lower) && (end >= upper) && (begin <= upper) ) /* [> begin of the page is in viewport <] */
|
|
) {
|
|
page->visible = true;
|
|
if (page->surface == NULL) {
|
|
render_page(zathura->sync.render_thread, page);
|
|
}
|
|
} else {
|
|
page->visible = false;
|
|
cairo_surface_destroy(page->surface);
|
|
page->surface = NULL;
|
|
}
|
|
|
|
free(offset);
|
|
}
|
|
}
|
|
|
|
void
|
|
cb_pages_per_row_value_changed(girara_session_t* UNUSED(session), girara_setting_t* setting)
|
|
{
|
|
int pages_per_row = setting->value.i;
|
|
zathura_t* zathura = setting->data;
|
|
|
|
if (pages_per_row < 1) {
|
|
pages_per_row = 1;
|
|
}
|
|
|
|
page_view_set_mode(zathura, pages_per_row);
|
|
}
|