void pango_printf(cairo_t *cairo, const char *font,
double scale, bool markup, const char *fmt, ...) {
va_list args;
va_start(args, fmt);
// Add one since vsnprintf excludes null terminator.
int length = vsnprintf(NULL, 0, fmt, args) + 1;
va_end(args);
char *buf = malloc(length);
if (buf == NULL) {
sway_log(SWAY_ERROR, "Failed to allocate memory");
return;
}
va_start(args, fmt);
vsnprintf(buf, length, fmt, args);
va_end(args);
PangoLayout *layout = get_pango_layout(cairo, font, buf, scale, markup);
cairo_font_options_t *fo = cairo_font_options_create();
cairo_get_font_options(cairo, fo);
pango_cairo_context_set_font_options(pango_layout_get_context(layout), fo);
cairo_font_options_destroy(fo);
pango_cairo_update_layout(cairo, layout);
pango_cairo_show_layout(cairo, layout);
g_object_unref(layout);
free(buf);
}
void get_text_size(cairo_t *cairo, const char *font, int *width, int *height,
int *baseline, double scale, bool markup, const char *fmt, ...) {
va_list args;
va_start(args, fmt);
// Add one since vsnprintf excludes null terminator.
int length = vsnprintf(NULL, 0, fmt, args) + 1;
va_end(args);
char *buf = malloc(length);
if (buf == NULL) {
sway_log(SWAY_ERROR, "Failed to allocate memory");
return;
}
va_start(args, fmt);
vsnprintf(buf, length, fmt, args);
va_end(args);
PangoLayout *layout = get_pango_layout(cairo, font, buf, scale, markup);
pango_cairo_update_layout(cairo, layout);
pango_layout_get_pixel_size(layout, width, height);
if (baseline) {
*baseline = pango_layout_get_baseline(layout) / PANGO_SCALE;
}
g_object_unref(layout);
free(buf);
}
void pango_printf(cairo_t *cairo, const char *font, int32_t scale, bool markup, const char *fmt, ...) {
char *buf = malloc(2048);
va_list args;
va_start(args, fmt);
if (vsnprintf(buf, 2048, fmt, args) >= 2048) {
strcpy(buf, "[buffer overflow]");
}
va_end(args);
PangoLayout *layout = get_pango_layout(cairo, font, buf, scale, markup);
pango_cairo_update_layout(cairo, layout);
pango_cairo_show_layout(cairo, layout);
g_object_unref(layout);
free(buf);
}
static void
gtk_numerable_icon_ensure_emblem (GtkNumerableIcon *self)
{
cairo_t *cr;
cairo_surface_t *surface;
PangoLayout *layout;
GEmblem *emblem;
gint width, height;
gdouble scale;
PangoAttrList *attr_list;
PangoAttribute *attr;
GdkPixbuf *pixbuf;
/* don't draw anything if the count is zero */
if (self->priv->rendered_string == NULL)
{
g_emblemed_icon_clear_emblems (G_EMBLEMED_ICON (self));
return;
}
surface = get_image_surface (self);
cr = cairo_create (surface);
layout = get_pango_layout (self);
pango_layout_get_pixel_size (layout, &width, &height);
/* scale the layout to be 0.75 of the size still available for drawing */
scale = ((get_surface_size (surface) - 2 * get_border_size (self)) * 0.75) / (MAX (height, width));
attr_list = pango_attr_list_new ();
attr = pango_attr_scale_new (scale);
pango_attr_list_insert (attr_list, attr);
attr = pango_attr_weight_new (PANGO_WEIGHT_BOLD);
pango_attr_list_insert (attr_list, attr);
pango_layout_set_attributes (layout, attr_list);
/* update these values */
pango_layout_get_pixel_size (layout, &width, &height);
/* move to the center */
cairo_move_to (cr,
get_surface_size (surface) / 2. - (gdouble) width / 2.,
get_surface_size (surface) / 2. - (gdouble) height / 2.);
gdk_cairo_set_source_rgba (cr, self->priv->foreground);
pango_cairo_show_layout (cr, layout);
cairo_destroy (cr);
pixbuf =
gdk_pixbuf_get_from_surface (surface, 0, 0,
get_surface_size (surface), get_surface_size (surface));
emblem = g_emblem_new (G_ICON (pixbuf));
g_emblemed_icon_clear_emblems (G_EMBLEMED_ICON (self));
g_emblemed_icon_add_emblem (G_EMBLEMED_ICON (self), emblem);
g_object_unref (layout);
g_object_unref (emblem);
g_object_unref (pixbuf);
cairo_surface_destroy (surface);
pango_attr_list_unref (attr_list);
}
static uint32_t render_detailed(cairo_t *cairo, struct swaynag *swaynag,
uint32_t y) {
uint32_t width = swaynag->width * swaynag->scale;
int border = swaynag->type->details_border_thickness * swaynag->scale;
int padding = swaynag->type->message_padding * swaynag->scale;
int decor = padding + border;
swaynag->details.x = decor;
swaynag->details.y = y * swaynag->scale + decor;
swaynag->details.width = width - decor * 2;
PangoLayout *layout = get_pango_layout(cairo, swaynag->type->font,
swaynag->details.message, swaynag->scale, false);
pango_layout_set_width(layout,
(swaynag->details.width - padding * 2) * PANGO_SCALE);
pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_single_paragraph_mode(layout, false);
pango_cairo_update_layout(cairo, layout);
swaynag->details.total_lines = pango_layout_get_line_count(layout);
PangoLayoutLine *line;
line = pango_layout_get_line_readonly(layout, swaynag->details.offset);
gint offset = line->start_index;
const char *text = pango_layout_get_text(layout);
pango_layout_set_text(layout, text + offset, strlen(text) - offset);
int text_width, text_height;
pango_cairo_update_layout(cairo, layout);
pango_layout_get_pixel_size(layout, &text_width, &text_height);
bool show_buttons = swaynag->details.offset > 0;
int button_width = get_detailed_scroll_button_width(cairo, swaynag);
if (show_buttons) {
swaynag->details.width -= button_width;
pango_layout_set_width(layout,
(swaynag->details.width - padding * 2) * PANGO_SCALE);
}
uint32_t ideal_height;
do {
ideal_height = swaynag->details.y + text_height + decor + padding * 2;
if (ideal_height > SWAYNAG_MAX_HEIGHT) {
ideal_height = SWAYNAG_MAX_HEIGHT;
if (!show_buttons) {
show_buttons = true;
swaynag->details.width -= button_width;
pango_layout_set_width(layout,
(swaynag->details.width - padding * 2) * PANGO_SCALE);
}
}
swaynag->details.height = ideal_height - swaynag->details.y - decor;
pango_layout_set_height(layout,
(swaynag->details.height - padding * 2) * PANGO_SCALE);
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_END);
pango_cairo_update_layout(cairo, layout);
pango_layout_get_pixel_size(layout, &text_width, &text_height);
} while (text_height != (swaynag->details.height - padding * 2));
swaynag->details.visible_lines = pango_layout_get_line_count(layout);
if (show_buttons) {
swaynag->details.button_up.x =
swaynag->details.x + swaynag->details.width;
swaynag->details.button_up.y = swaynag->details.y;
swaynag->details.button_up.width = button_width;
swaynag->details.button_up.height = swaynag->details.height / 2;
render_details_scroll_button(cairo, swaynag,
&swaynag->details.button_up);
swaynag->details.button_down.x =
swaynag->details.x + swaynag->details.width;
swaynag->details.button_down.y =
swaynag->details.button_up.y + swaynag->details.button_up.height;
swaynag->details.button_down.width = button_width;
swaynag->details.button_down.height = swaynag->details.height / 2;
render_details_scroll_button(cairo, swaynag,
&swaynag->details.button_down);
}
cairo_set_source_u32(cairo, swaynag->type->border);
cairo_rectangle(cairo, swaynag->details.x, swaynag->details.y,
swaynag->details.width, swaynag->details.height);
cairo_fill(cairo);
cairo_move_to(cairo, swaynag->details.x + padding,
swaynag->details.y + padding);
cairo_set_source_u32(cairo, swaynag->type->text);
pango_cairo_show_layout(cairo, layout);
g_object_unref(layout);
return ideal_height / swaynag->scale;
}
