void cb_view_vadjustment_value_changed(GtkAdjustment* GIRARA_UNUSED(adjustment), gpointer data) { zathura_t* zathura = data; if (zathura == NULL || zathura->document == NULL || zathura->ui.page_widget == NULL) { return; } GtkAdjustment* view_vadjustment = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(zathura->ui.session->gtk.view)); GtkAdjustment* view_hadjustment = gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(zathura->ui.session->gtk.view)); GdkRectangle view_rect; /* get current adjustment values */ view_rect.y = 0; view_rect.height = gtk_adjustment_get_page_size(view_vadjustment); view_rect.x = 0; view_rect.width = gtk_adjustment_get_page_size(view_hadjustment); int page_padding = 1; girara_setting_get(zathura->ui.session, "page-padding", &page_padding); GdkRectangle center; center.x = (view_rect.width + 1) / 2; center.y = (view_rect.height + 1) / 2; center.height = center.width = (2 * page_padding) + 1; unsigned int number_of_pages = zathura_document_get_number_of_pages(zathura->document); double scale = zathura_document_get_scale(zathura->document); bool updated = false; /* find page that fits */ for (unsigned int page_id = 0; page_id < number_of_pages; page_id++) { zathura_page_t* page = zathura_document_get_page(zathura->document, page_id); GdkRectangle page_rect; GtkWidget* page_widget = zathura_page_get_widget(zathura, page); gtk_widget_translate_coordinates(page_widget, zathura->ui.session->gtk.view, 0, 0, &page_rect.x, &page_rect.y); page_rect.width = zathura_page_get_width(page) * scale; page_rect.height = zathura_page_get_height(page) * scale; if (gdk_rectangle_intersect(&view_rect, &page_rect, NULL) == TRUE) { zathura_page_set_visibility(page, true); if (zathura->global.update_page_number == true && updated == false && gdk_rectangle_intersect(¢er, &page_rect, NULL) == TRUE) { zathura_document_set_current_page_number(zathura->document, page_id); updated = true; } } else { zathura_page_set_visibility(page, false); } zathura_page_widget_update_view_time(ZATHURA_PAGE(page_widget)); } statusbar_page_number_update(zathura); }
void update_visible_pages(zathura_t* zathura) { const unsigned int number_of_pages = zathura_document_get_number_of_pages(zathura->document); for (unsigned int page_id = 0; page_id < number_of_pages; page_id++) { zathura_page_t* page = zathura_document_get_page(zathura->document, page_id); GtkWidget* page_widget = zathura_page_get_widget(zathura, page); ZathuraPage* zathura_page_widget = ZATHURA_PAGE(page_widget); if (page_is_visible(zathura->document, page_id) == true) { /* make page visible */ if (zathura_page_get_visibility(page) == false) { zathura_page_set_visibility(page, true); zathura_page_widget_update_view_time(zathura_page_widget); zathura_renderer_page_cache_add(zathura->sync.render_thread, zathura_page_get_index(page)); } } else { /* make page invisible */ if (zathura_page_get_visibility(page) == true) { zathura_page_set_visibility(page, false); /* If a page becomes invisible, abort the render request. */ zathura_page_widget_abort_render_request(zathura_page_widget); } /* reset current search result */ girara_list_t* results = NULL; GObject* obj_page_widget = G_OBJECT(page_widget); g_object_get(obj_page_widget, "search-results", &results, NULL); if (results != NULL) { g_object_set(obj_page_widget, "search-current", 0, NULL); } } } }
void cb_view_vadjustment_value_changed(GtkAdjustment* GIRARA_UNUSED(adjustment), gpointer data) { zathura_t* zathura = data; if (zathura == NULL || zathura->document == NULL || zathura->ui.page_widget == NULL) { return; } GtkAdjustment* view_vadjustment = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(zathura->ui.session->gtk.view)); GtkAdjustment* view_hadjustment = gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(zathura->ui.session->gtk.view)); /* current adjustment values */ GdkRectangle view_rect = { .x = 0, .y = 0, .width = gtk_adjustment_get_page_size(view_hadjustment), .height = gtk_adjustment_get_page_size(view_vadjustment) }; int page_padding = 1; girara_setting_get(zathura->ui.session, "page-padding", &page_padding); GdkRectangle center = { .x = (view_rect.width + 1) / 2, .y = (view_rect.height + 1) / 2, .width = (2 * page_padding) + 1, .height = (2 * page_padding) + 1 }; unsigned int number_of_pages = zathura_document_get_number_of_pages(zathura->document); double scale = zathura_document_get_scale(zathura->document); bool updated = false; /* find page that fits */ for (unsigned int page_id = 0; page_id < number_of_pages; page_id++) { zathura_page_t* page = zathura_document_get_page(zathura->document, page_id); GdkRectangle page_rect = { .width = zathura_page_get_width(page) * scale, .height = zathura_page_get_height(page) * scale }; GtkWidget* page_widget = zathura_page_get_widget(zathura, page); gtk_widget_translate_coordinates(page_widget, zathura->ui.session->gtk.view, 0, 0, &page_rect.x, &page_rect.y); if (gdk_rectangle_intersect(&view_rect, &page_rect, NULL) == TRUE) { zathura_page_set_visibility(page, true); if (zathura->global.update_page_number == true && updated == false && gdk_rectangle_intersect(¢er, &page_rect, NULL) == TRUE) { zathura_document_set_current_page_number(zathura->document, page_id); updated = true; } } else { zathura_page_set_visibility(page, false); } zathura_page_widget_update_view_time(ZATHURA_PAGE(page_widget)); } statusbar_page_number_update(zathura); } void cb_pages_per_row_value_changed(girara_session_t* session, const char* UNUSED(name), girara_setting_type_t UNUSED(type), void* value, void* UNUSED(data)) { g_return_if_fail(value != NULL); g_return_if_fail(session != NULL); g_return_if_fail(session->global.data != NULL); zathura_t* zathura = session->global.data; int pages_per_row = *(int*) value; if (pages_per_row < 1) { pages_per_row = 1; } unsigned int first_page_column = 1; girara_setting_get(session, "first-page-column", &first_page_column); page_widget_set_mode(zathura, pages_per_row, first_page_column); if (zathura->document != NULL) { unsigned int current_page = zathura_document_get_current_page_number(zathura->document); page_set_delayed(zathura, current_page); } }