bool
sc_zoom(girara_session_t* session, girara_argument_t* argument, girara_event_t*
event, unsigned int t)
{
g_return_val_if_fail(session != NULL, false);
g_return_val_if_fail(session->global.data != NULL, false);
zathura_t* zathura = session->global.data;
g_return_val_if_fail(argument != NULL, false);
g_return_val_if_fail(zathura->document != NULL, false);
zathura_document_set_adjust_mode(zathura->document, ZATHURA_ADJUST_NONE);
/* retrieve zoom step value */
int value = 1;
girara_setting_get(zathura->ui.session, "zoom-step", &value);
const int nt = (t == 0) ? 1 : t;
const double zoom_step = 1.0 + value / 100.0 * nt;
const double old_zoom = zathura_document_get_scale(zathura->document);
/* specify new zoom value */
if (argument->n == ZOOM_IN) {
girara_debug("Increasing zoom by %f.", zoom_step - 1.0);
zathura_document_set_scale(zathura->document, old_zoom * zoom_step);
} else if (argument->n == ZOOM_OUT) {
girara_debug("Decreasing zoom by %f.", zoom_step - 1.0);
zathura_document_set_scale(zathura->document, old_zoom / zoom_step);
} else if (argument->n == ZOOM_SPECIFIC) {
if (t == 0) {
girara_debug("Setting zoom to 1.");
zathura_document_set_scale(zathura->document, 1.0);
} else {
girara_debug("Setting zoom to %f.", t / 100.0);
zathura_document_set_scale(zathura->document, t / 100.0);
}
} else if (argument->n == ZOOM_SMOOTH) {
const double dy = (event != NULL) ? event->y : 1.0;
girara_debug("Increasing zoom by %f.", zoom_step * dy - 1.0);
zathura_document_set_scale(zathura->document, old_zoom + zoom_step * dy);
} else {
girara_debug("Setting zoom to 1.");
zathura_document_set_scale(zathura->document, 1.0);
}
/* zoom limitations */
const double scale = zathura_document_get_scale(zathura->document);
zathura_document_set_scale(zathura->document, zathura_correct_scale_value(session, scale));
const double new_zoom = zathura_document_get_scale(zathura->document);
if (fabs(new_zoom - old_zoom) <= DBL_EPSILON) {
girara_debug("New and old zoom level are too close: %f vs. %f, diff = %f", new_zoom, old_zoom, fabs(new_zoom - old_zoom));
return false;
}
girara_debug("Re-rendering with new zoom level %f.", new_zoom);
render_all(zathura);
refresh_view(zathura);
return false;
}
bool
sc_zoom(girara_session_t* session, girara_argument_t* argument, girara_event_t*
UNUSED(event), unsigned int t)
{
g_return_val_if_fail(session != NULL, false);
g_return_val_if_fail(session->global.data != NULL, false);
zathura_t* zathura = session->global.data;
g_return_val_if_fail(argument != NULL, false);
g_return_val_if_fail(zathura->document != NULL, false);
zathura_document_set_adjust_mode(zathura->document, ZATHURA_ADJUST_NONE);
/* retreive zoom step value */
int value = 1;
girara_setting_get(zathura->ui.session, "zoom-step", &value);
int nt = (t == 0) ? 1 : t;
float zoom_step = value / 100.0f * nt;
float old_zoom = zathura_document_get_scale(zathura->document);
/* specify new zoom value */
if (argument->n == ZOOM_IN) {
zathura_document_set_scale(zathura->document, old_zoom + zoom_step);
} else if (argument->n == ZOOM_OUT) {
zathura_document_set_scale(zathura->document, old_zoom - zoom_step);
} else if (argument->n == ZOOM_SPECIFIC) {
if (t == 0) {
zathura_document_set_scale(zathura->document, 1.0f);
} else {
zathura_document_set_scale(zathura->document, t / 100.0f);
}
} else {
zathura_document_set_scale(zathura->document, 1.0f);
}
/* zoom limitations */
int zoom_min_int = 10;
int zoom_max_int = 1000;
girara_setting_get(session, "zoom-min", &zoom_min_int);
girara_setting_get(session, "zoom-max", &zoom_max_int);
float zoom_min = zoom_min_int * 0.01f;
float zoom_max = zoom_max_int * 0.01f;
float scale = zathura_document_get_scale(zathura->document);
if (scale < zoom_min) {
zathura_document_set_scale(zathura->document, zoom_min);
} else if (scale > zoom_max) {
zathura_document_set_scale(zathura->document, zoom_max);
}
/* keep position */
readjust_view_after_zooming(zathura, old_zoom, true);
render_all(zathura);
return false;
}
void
mark_evaluate(zathura_t* zathura, int key)
{
if (zathura == NULL || zathura->global.marks == NULL) {
return;
}
/* search for existing mark */
GIRARA_LIST_FOREACH(zathura->global.marks, zathura_mark_t*, iter, mark)
if (mark != NULL && mark->key == key) {
zathura_document_set_scale(zathura->document, mark->scale);
render_all(zathura);
position_set_delayed(zathura, mark->position_x, mark->position_y);
cb_view_vadjustment_value_changed(NULL, zathura);
zathura->global.update_page_number = true;
return;
}
GIRARA_LIST_FOREACH_END(zathura->global.marks, zathura_mark_t*, iter, mark);
}
bool
sc_toggle_presentation(girara_session_t* session, girara_argument_t*
UNUSED(argument), girara_event_t* UNUSED(event), unsigned int UNUSED(t))
{
g_return_val_if_fail(session != NULL, false);
g_return_val_if_fail(session->global.data != NULL, false);
zathura_t* zathura = session->global.data;
if (zathura->document == NULL) {
girara_notify(session, GIRARA_WARNING, _("No document opened."));
return false;
}
const girara_mode_t old_mode = girara_mode_get(session);
if (old_mode == zathura->modes.presentation) {
/* reset pages per row */
girara_setting_set(session, "pages-per-row", &zathura->shortcut.toggle_presentation_mode.pages);
/* reset first page column */
if (zathura->shortcut.toggle_presentation_mode.first_page_column_list != NULL) {
girara_setting_set(session, "first-page-column", zathura->shortcut.toggle_presentation_mode.first_page_column_list);
}
/* show status bar */
gtk_widget_show(GTK_WIDGET(session->gtk.statusbar));
/* set full screen */
gtk_window_unfullscreen(GTK_WINDOW(session->gtk.window));
/* reset scale */
zathura_document_set_scale(zathura->document, zathura->shortcut.toggle_presentation_mode.zoom);
render_all(zathura);
refresh_view(zathura);
/* set mode */
girara_mode_set(session, zathura->modes.normal);
} else if (old_mode == zathura->modes.normal) {
/* backup pages per row */
girara_setting_get(session, "pages-per-row", &zathura->shortcut.toggle_presentation_mode.pages);
/* backup first page column */
g_free(zathura->shortcut.toggle_presentation_mode.first_page_column_list);
zathura->shortcut.toggle_presentation_mode.first_page_column_list = NULL;
/* this will leak. we need to move the values somewhere else */
girara_setting_get(session, "first-page-column", &zathura->shortcut.toggle_presentation_mode.first_page_column_list);
/* set single view */
int int_value = 1;
girara_setting_set(session, "pages-per-row", &int_value);
/* back up zoom */
zathura->shortcut.toggle_presentation_mode.zoom = zathura_document_get_scale(zathura->document);
/* adjust window */
girara_argument_t argument = { ZATHURA_ADJUST_BESTFIT, NULL };
sc_adjust_window(session, &argument, NULL, 0);
/* hide status and inputbar */
gtk_widget_hide(GTK_WIDGET(session->gtk.inputbar));
gtk_widget_hide(GTK_WIDGET(session->gtk.statusbar));
/* set full screen */
gtk_window_fullscreen(GTK_WINDOW(session->gtk.window));
refresh_view(zathura);
/* set mode */
girara_mode_set(session, zathura->modes.presentation);
}
return false;
}
bool
sc_adjust_window(girara_session_t* session, girara_argument_t* argument,
girara_event_t* UNUSED(event), unsigned int UNUSED(t))
{
g_return_val_if_fail(session != NULL, false);
g_return_val_if_fail(session->global.data != NULL, false);
zathura_t* zathura = session->global.data;
g_return_val_if_fail(argument != NULL, false);
unsigned int pages_per_row = 1;
girara_setting_get(session, "pages-per-row", &pages_per_row);
unsigned int first_page_column = 1;
girara_setting_get(session, "first-page-column", &first_page_column);
int padding = 1;
girara_setting_get(zathura->ui.session, "page-padding", &padding);
if (zathura->ui.page_widget == NULL || zathura->document == NULL) {
goto error_ret;
}
float old_zoom = zathura_document_get_scale(zathura->document);
zathura_document_set_adjust_mode(zathura->document, argument->n);
if (argument->n == ZATHURA_ADJUST_NONE) {
/* there is nothing todo */
goto error_ret;
}
/* get window size */
GtkAllocation allocation;
gtk_widget_get_allocation(session->gtk.view, &allocation);
unsigned int width = allocation.width;
unsigned int height = allocation.height;
/* scrollbar spacing */
gint spacing;
gtk_widget_style_get(session->gtk.view, "scrollbar_spacing", &spacing, NULL);
width -= spacing;
/* correct view size */
if (gtk_widget_get_visible(GTK_WIDGET(session->gtk.inputbar)) == true) {
gtk_widget_get_allocation(session->gtk.inputbar, &allocation);
height += allocation.height;
}
double scale = 1.0;
unsigned int cell_height = 0, cell_width = 0;
unsigned int document_height = 0, document_width = 0;
zathura_document_set_scale(zathura->document, scale);
zathura_document_get_cell_size(zathura->document, &cell_height, &cell_width);
zathura_get_document_size(zathura, cell_height, cell_width,
&document_height, &document_width);
double page_ratio = (double)cell_height / (double)document_width;
double window_ratio = (double)height / (double)width;
if (argument->n == ZATHURA_ADJUST_WIDTH ||
(argument->n == ZATHURA_ADJUST_BESTFIT && page_ratio < window_ratio)) {
scale = (double)(width - (pages_per_row - 1) * padding) /
(double)(pages_per_row * cell_width);
zathura_document_set_scale(zathura->document, scale);
bool show_scrollbars = false;
girara_setting_get(session, "show-scrollbars", &show_scrollbars);
if (show_scrollbars) {
/* If the document is taller than the view, there's a vertical
* scrollbar; we need to substract its width from the view's width. */
zathura_get_document_size(zathura, cell_height, cell_width,
&document_height, &document_width);
if (height < document_height) {
GtkWidget* vscrollbar = gtk_scrolled_window_get_vscrollbar(
GTK_SCROLLED_WINDOW(session->gtk.view));
if (vscrollbar != NULL) {
GtkRequisition requisition;
gtk_widget_get_requisition(vscrollbar, &requisition);
if (0 < requisition.width && (unsigned)requisition.width < width) {
width -= requisition.width;
scale = (double)(width - (pages_per_row - 1) * padding) /
(double)(pages_per_row * cell_width);
zathura_document_set_scale(zathura->document, scale);
}
}
}
}
}
else if (argument->n == ZATHURA_ADJUST_BESTFIT) {
scale = (double)height / (double)cell_height;
zathura_document_set_scale(zathura->document, scale);
}
else {
goto error_ret;
}
/* keep position */
readjust_view_after_zooming(zathura, old_zoom, false);
/* re-render all pages */
render_all(zathura);
error_ret:
return false;
}
bool
sc_toggle_fullscreen(girara_session_t* session, girara_argument_t*
UNUSED(argument), girara_event_t* UNUSED(event), unsigned int UNUSED(t))
{
g_return_val_if_fail(session != NULL, false);
g_return_val_if_fail(session->global.data != NULL, false);
zathura_t* zathura = session->global.data;
if (zathura->document == NULL) {
girara_notify(session, GIRARA_WARNING, _("No document opened."));
return false;
}
static bool fullscreen = false;
static int pages_per_row = 1;
static int first_page_column = 1;
static double zoom = 1.0;
if (fullscreen == true) {
/* reset pages per row */
girara_setting_set(session, "pages-per-row", &pages_per_row);
/* reset first page column */
girara_setting_set(session, "first-page-column", &first_page_column);
/* show status bar */
gtk_widget_show(GTK_WIDGET(session->gtk.statusbar));
/* set full screen */
gtk_window_unfullscreen(GTK_WINDOW(session->gtk.window));
/* reset scale */
zathura_document_set_scale(zathura->document, zoom);
render_all(zathura);
page_set_delayed(zathura, zathura_document_get_current_page_number(zathura->document));
/* setm ode */
girara_mode_set(session, zathura->modes.normal);
} else {
/* backup pages per row */
girara_setting_get(session, "pages-per-row", &pages_per_row);
/* backup first page column */
girara_setting_get(session, "first-page-column", &first_page_column);
/* set single view */
int int_value = 1;
girara_setting_set(session, "pages-per-row", &int_value);
/* back up zoom */
zoom = zathura_document_get_scale(zathura->document);
/* adjust window */
girara_argument_t argument = { ZATHURA_ADJUST_BESTFIT, NULL };
sc_adjust_window(session, &argument, NULL, 0);
/* hide status and inputbar */
gtk_widget_hide(GTK_WIDGET(session->gtk.inputbar));
gtk_widget_hide(GTK_WIDGET(session->gtk.statusbar));
/* set full screen */
gtk_window_fullscreen(GTK_WINDOW(session->gtk.window));
page_set_delayed(zathura, zathura_document_get_current_page_number(zathura->document));
/* setm ode */
girara_mode_set(session, zathura->modes.fullscreen);
}
fullscreen = fullscreen ? false : true;
return false;
}
