void set_window_font(window_t *window, font_sheet_t *font) {
window->font = font;
// apply font to all created widgets
for (uint i = 0; i < MAX_WIDGETS_PER_WINDOW; i++) {
if (window->widgets[i] != NULL) {
set_widget_font(window->widgets[i], font);
}
}
// apply font to special widgets
set_widget_font(window->close_button, font);
}
void
CoordWinSetFont(const char *font)
{
#if GTK_CHECK_VERSION(3, 16, 0)
if (NgraphApp.CoordWin.data.text && font) {
set_widget_font(NgraphApp.CoordWin.data.text, font);
}
#else /* GTK_CHECK_VERSION(3, 16, 0) */
const char *ptr;
PangoAttrList *pattr;
PangoFontDescription *desc;
GtkLabel *label;
label = GTK_LABEL(NgraphApp.CoordWin.data.text);
if (label == NULL)
return;
pattr = gtk_label_get_attributes(label);
if (pattr == NULL) {
pattr = pango_attr_list_new();
gtk_label_set_attributes(GTK_LABEL(label), pattr);
}
ptr = (font) ? font : "Monospace";
desc = pango_font_description_from_string(ptr);
pango_attr_list_change(pattr, pango_attr_font_desc_new(desc));
pango_font_description_free(desc);
#endif
}
bool add_widget_to_window(window_t *window, widget_t *widget) {
if (window->num_widgets >= MAX_WIDGETS_PER_WINDOW) {
return false;
}
// find a free slot in window->widgets.
for (uint i = 0; i < MAX_WIDGETS_PER_WINDOW; i++) {
if (window->widgets[i] == NULL) {
set_widget_font(widget, window->font); // apply window font to widget
window->widgets[i] = widget;
window->num_widgets++;
return true;
}
}
// at this point, no free slots have been found.
return false;
}
void
InfoWinSetFont(char *font)
{
if (NgraphApp.InfoWin.data.text && font) {
#if GTK_CHECK_VERSION(3, 16, 0)
set_widget_font(NgraphApp.InfoWin.data.text, font);
#else /* GTK_CHECK_VERSION(3, 16, 0) */
PangoFontDescription *desc;
desc = pango_font_description_from_string(font);
#if GTK_CHECK_VERSION(3, 0, 0)
gtk_widget_override_font(GTK_WIDGET(NgraphApp.InfoWin.data.text), NULL);
gtk_widget_override_font(GTK_WIDGET(NgraphApp.InfoWin.data.text), desc);
#else
gtk_widget_modify_font(GTK_WIDGET(NgraphApp.InfoWin.data.text), NULL);
gtk_widget_modify_font(GTK_WIDGET(NgraphApp.InfoWin.data.text), desc);
#endif
pango_font_description_free(desc);
#endif
}
}
