zathura/callbacks.c
2011-09-29 18:51:24 +02:00

143 lines
3.6 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"
#include "shortcuts.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 * zathura->document->scale;
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);
}
typedef struct page_set_delayed_s {
zathura_t* zathura;
unsigned int page;
} page_set_delayed_t;
static gboolean
page_set_delayed(gpointer data) {
page_set_delayed_t* p = data;
page_set(p->zathura, p->page);
g_free(p);
return FALSE;
}
void
cb_index_row_activated(GtkTreeView* tree_view, GtkTreePath* path,
GtkTreeViewColumn* UNUSED(column), zathura_t* zathura)
{
if (tree_view == NULL || zathura == NULL || zathura->ui.session == NULL) {
return;
}
GtkTreeModel *model;
GtkTreeIter iter;
g_object_get(tree_view, "model", &model, NULL);
if(gtk_tree_model_get_iter(model, &iter, path))
{
zathura_index_element_t* index_element;
gtk_tree_model_get(model, &iter, 2, &index_element, -1);
if (index_element == NULL) {
return;
}
if (index_element->type == ZATHURA_LINK_TO_PAGE) {
sc_toggle_index(zathura->ui.session, NULL, 0);
page_set_delayed_t* p = g_malloc(sizeof(page_set_delayed_t));
p->zathura = zathura;
p->page = index_element->target.page_number;
g_idle_add(page_set_delayed, p);
} else if (index_element->type == ZATHURA_LINK_EXTERNAL) {
// TODO
}
}
g_object_unref(model);
}