static void
draw (GtkWidget *drawing_area,
cairo_t *cr,
FT_Face face)
{
cairo_font_extents_t font_extents;
gint *sizes = NULL, n_sizes, alpha_size, pos_y, i;
const gchar *text;
cairo_font_face_t *font;
text = get_sample_string (face);
sizes = build_sizes_table (face, &n_sizes, &alpha_size);
font = cairo_ft_font_face_create_for_ft_face (face, 0);
cairo_set_font_face (cr, font);
cairo_font_extents (cr, &font_extents);
cairo_font_face_destroy (font);
/* draw text */
pos_y = MAX (font_extents.height, 32) + 4;
cairo_set_font_size (cr, alpha_size);
draw_string (cr, lowercase_text, &pos_y);
draw_string (cr, uppercase_text, &pos_y);
draw_string (cr, punctuation_text, &pos_y);
pos_y += 8;
for (i = 0; i < n_sizes; i++) {
cairo_set_font_size (cr, sizes[i]);
draw_string (cr, text, &pos_y);
}
g_free (sizes);
}
static void
realize_callback (GtkWidget *drawing_area,
FT_Face face)
{
gint i, pixmap_width, pixmap_height;
const gchar *text;
cairo_text_extents_t extents;
cairo_font_face_t *font;
gint *sizes = NULL, n_sizes, alpha_size;
cairo_t *cr;
cr = gdk_cairo_create (gtk_widget_get_window (drawing_area));
text = get_sample_string (face);
sizes = build_sizes_table (face, &n_sizes, &alpha_size);
/* calculate size of pixmap to use (with 4 pixels padding) ... */
pixmap_width = 8;
pixmap_height = 8;
font = cairo_ft_font_face_create_for_ft_face (face, 0);
cairo_set_font_face (cr, font);
cairo_set_font_size (cr, alpha_size);
cairo_font_face_destroy (font);
cairo_text_extents (cr, lowercase_text, &extents);
pixmap_height += extents.height + 4;
pixmap_width = MAX (pixmap_width, 8 + extents.width);
cairo_text_extents (cr, uppercase_text, &extents);
pixmap_height += extents.height + 4;
pixmap_width = MAX (pixmap_width, 8 + extents.width);
cairo_text_extents (cr, punctuation_text, &extents);
pixmap_height += extents.height + 4;
pixmap_width = MAX (pixmap_width, 8 + extents.width);
pixmap_height += 8;
for (i = 0; i < n_sizes; i++) {
cairo_set_font_size (cr, sizes[i]);
cairo_text_extents (cr, text, &extents);
pixmap_height += extents.height + 4;
pixmap_width = MAX (pixmap_width, 8 + extents.width);
}
gtk_widget_set_size_request (drawing_area, pixmap_width, pixmap_height);
cairo_destroy (cr);
g_free (sizes);
}
static gboolean
sushi_font_widget_draw (GtkWidget *drawing_area,
cairo_t *cr)
{
SushiFontWidget *self = SUSHI_FONT_WIDGET (drawing_area);
SushiFontWidgetPrivate *priv = self->priv;
gint *sizes = NULL, n_sizes, alpha_size, title_size, pos_y = 0, i;
cairo_font_face_t *font;
FT_Face face = priv->face;
GtkStyleContext *context;
GdkRGBA color;
GtkBorder padding;
GtkStateFlags state;
gint allocated_width, allocated_height;
if (face == NULL)
goto end;
context = gtk_widget_get_style_context (drawing_area);
state = gtk_style_context_get_state (context);
allocated_width = gtk_widget_get_allocated_width (drawing_area);
allocated_height = gtk_widget_get_allocated_height (drawing_area);
gtk_render_background (context, cr,
0, 0, allocated_width, allocated_height);
gtk_style_context_get_color (context, state, &color);
gtk_style_context_get_padding (context, state, &padding);
gdk_cairo_set_source_rgba (cr, &color);
sizes = build_sizes_table (face, &n_sizes, &alpha_size, &title_size);
font = cairo_ft_font_face_create_for_ft_face (face, 0);
cairo_set_font_face (cr, font);
cairo_font_face_destroy (font);
/* draw text */
if (self->priv->font_name != NULL) {
cairo_set_font_size (cr, title_size);
draw_string (self, cr, padding, self->priv->font_name, &pos_y);
}
if (pos_y > allocated_height)
goto end;
pos_y += SECTION_SPACING / 2;
cairo_set_font_size (cr, alpha_size);
if (self->priv->lowercase_text != NULL)
draw_string (self, cr, padding, self->priv->lowercase_text, &pos_y);
if (pos_y > allocated_height)
goto end;
if (self->priv->uppercase_text != NULL)
draw_string (self, cr, padding, self->priv->uppercase_text, &pos_y);
if (pos_y > allocated_height)
goto end;
if (self->priv->punctuation_text != NULL)
draw_string (self, cr, padding, self->priv->punctuation_text, &pos_y);
if (pos_y > allocated_height)
goto end;
pos_y += SECTION_SPACING;
for (i = 0; i < n_sizes; i++) {
cairo_set_font_size (cr, sizes[i]);
if (self->priv->sample_string != NULL)
draw_string (self, cr, padding, self->priv->sample_string, &pos_y);
if (pos_y > allocated_height)
break;
}
end:
g_free (sizes);
return FALSE;
}
static void
sushi_font_widget_size_request (GtkWidget *drawing_area,
gint *width,
gint *height,
gint *min_height)
{
SushiFontWidget *self = SUSHI_FONT_WIDGET (drawing_area);
SushiFontWidgetPrivate *priv = self->priv;
gint i, pixmap_width, pixmap_height;
cairo_text_extents_t extents;
cairo_font_extents_t font_extents;
cairo_font_face_t *font;
gint *sizes = NULL, n_sizes, alpha_size, title_size;
cairo_t *cr;
cairo_surface_t *surface;
FT_Face face = priv->face;
GtkStyleContext *context;
GtkStateFlags state;
GtkBorder padding;
if (face == NULL) {
if (width != NULL)
*width = 1;
if (height != NULL)
*height = 1;
if (min_height != NULL)
*min_height = 1;
return;
}
if (min_height != NULL)
*min_height = -1;
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
SURFACE_SIZE, SURFACE_SIZE);
cr = cairo_create (surface);
context = gtk_widget_get_style_context (drawing_area);
state = gtk_style_context_get_state (context);
gtk_style_context_get_padding (context, state, &padding);
sizes = build_sizes_table (face, &n_sizes, &alpha_size, &title_size);
/* calculate size of pixmap to use */
pixmap_width = padding.left + padding.right;
pixmap_height = padding.top + padding.bottom;
font = cairo_ft_font_face_create_for_ft_face (face, 0);
cairo_set_font_face (cr, font);
cairo_font_face_destroy (font);
if (self->priv->font_name != NULL) {
cairo_set_font_size (cr, title_size);
cairo_font_extents (cr, &font_extents);
text_extents (cr, self->priv->font_name, &extents);
pixmap_height += font_extents.ascent + font_extents.descent +
extents.y_advance + LINE_SPACING;
pixmap_width = MAX (pixmap_width, extents.width + padding.left + padding.right);
}
pixmap_height += SECTION_SPACING / 2;
cairo_set_font_size (cr, alpha_size);
cairo_font_extents (cr, &font_extents);
if (self->priv->lowercase_text != NULL) {
text_extents (cr, self->priv->lowercase_text, &extents);
pixmap_height += font_extents.ascent + font_extents.descent +
extents.y_advance + LINE_SPACING;
pixmap_width = MAX (pixmap_width, extents.width + padding.left + padding.right);
}
if (self->priv->uppercase_text != NULL) {
text_extents (cr, self->priv->uppercase_text, &extents);
pixmap_height += font_extents.ascent + font_extents.descent +
extents.y_advance + LINE_SPACING;
pixmap_width = MAX (pixmap_width, extents.width + padding.left + padding.right);
}
if (self->priv->punctuation_text != NULL) {
text_extents (cr, self->priv->punctuation_text, &extents);
pixmap_height += font_extents.ascent + font_extents.descent +
extents.y_advance + LINE_SPACING;
pixmap_width = MAX (pixmap_width, extents.width + padding.left + padding.right);
}
if (self->priv->sample_string != NULL) {
pixmap_height += SECTION_SPACING;
for (i = 0; i < n_sizes; i++) {
cairo_set_font_size (cr, sizes[i]);
cairo_font_extents (cr, &font_extents);
text_extents (cr, self->priv->sample_string, &extents);
pixmap_height += font_extents.ascent + font_extents.descent +
extents.y_advance + LINE_SPACING;
pixmap_width = MAX (pixmap_width, extents.width + padding.left + padding.right);
if ((i == 7) && (min_height != NULL))
*min_height = pixmap_height;
}
}
pixmap_height += padding.bottom + SECTION_SPACING;
if (min_height != NULL && *min_height == -1)
*min_height = pixmap_height;
if (width != NULL)
*width = pixmap_width;
if (height != NULL)
*height = pixmap_height;
cairo_destroy (cr);
cairo_surface_destroy (surface);
g_free (sizes);
}
