JNIEXPORT void JNICALL
Java_org_gnome_pango_PangoLayoutLine_pango_1layout_1line_1get_1pixel_1extents
(
JNIEnv* env,
jclass cls,
jlong _self,
jlong _inkRect,
jlong _logicalRect
)
{
PangoLayoutLine* self;
PangoRectangle* inkRect;
PangoRectangle* logicalRect;
// convert parameter self
self = (PangoLayoutLine*) _self;
// convert parameter inkRect
inkRect = (PangoRectangle*) _inkRect;
// convert parameter logicalRect
logicalRect = (PangoRectangle*) _logicalRect;
// call function
pango_layout_line_get_pixel_extents(self, inkRect, logicalRect);
// cleanup parameter self
// cleanup parameter inkRect
// cleanup parameter logicalRect
}
static VALUE
rg_pixel_extents(VALUE self)
{
PangoRectangle ink_rect, logical_rect;
pango_layout_line_get_pixel_extents(_SELF(self), &ink_rect, &logical_rect);
return rb_assoc_new(PANGORECTANGLE2RVAL(&ink_rect),
PANGORECTANGLE2RVAL(&logical_rect));
}
gboolean
text_get_extents (const gchar *fontname,
const gchar *text,
gint *width,
gint *height,
gint *ascent,
gint *descent)
{
PangoFontDescription *font_desc;
PangoContext *context;
PangoLayout *layout;
PangoFontMap *fontmap;
PangoRectangle rect;
g_return_val_if_fail (fontname != NULL, FALSE);
g_return_val_if_fail (text != NULL, FALSE);
fontmap = pango_cairo_font_map_new_for_font_type (CAIRO_FONT_TYPE_FT);
if (! fontmap)
g_error ("You are using a Pango that has been built against a cairo "
"that lacks the Freetype font backend");
pango_cairo_font_map_set_resolution (PANGO_CAIRO_FONT_MAP (fontmap),
72.0); /* FIXME: resolution */
context = pango_font_map_create_context (fontmap);
g_object_unref (fontmap);
layout = pango_layout_new (context);
g_object_unref (context);
font_desc = pango_font_description_from_string (fontname);
pango_layout_set_font_description (layout, font_desc);
pango_font_description_free (font_desc);
pango_layout_set_text (layout, text, -1);
pango_layout_get_pixel_extents (layout, NULL, &rect);
if (width)
*width = rect.width;
if (height)
*height = rect.height;
if (ascent || descent)
{
PangoLayoutIter *iter;
PangoLayoutLine *line;
iter = pango_layout_get_iter (layout);
line = pango_layout_iter_get_line_readonly (iter);
pango_layout_iter_free (iter);
pango_layout_line_get_pixel_extents (line, NULL, &rect);
if (ascent)
*ascent = PANGO_ASCENT (rect);
if (descent)
*descent = - PANGO_DESCENT (rect);
}
g_object_unref (layout);
return TRUE;
}
static gboolean
set_tooltip_widget_from_marks (GtkSourceView *view,
GtkTooltip *tooltip,
GSList *marks)
{
GtkWidget *vbox = NULL;
for (; marks; marks = g_slist_next (marks))
{
const gchar *category;
GtkSourceMark *mark;
GtkSourceMarkAttributes *attrs;
gchar *text;
gboolean ismarkup = FALSE;
GtkWidget *label;
GtkWidget *hbox;
const GdkPixbuf *pixbuf;
gint size;
mark = marks->data;
category = gtk_source_mark_get_category (mark);
attrs = gtk_source_view_get_mark_attributes (view,
category,
NULL);
if (attrs == NULL)
{
continue;
}
text = gtk_source_mark_attributes_get_tooltip_markup (attrs,
mark);
if (text == NULL)
{
text = gtk_source_mark_attributes_get_tooltip_text (attrs,
mark);
}
else
{
ismarkup = TRUE;
}
if (text == NULL)
{
continue;
}
if (vbox == NULL)
{
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_widget_show (vbox);
}
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
gtk_widget_show (hbox);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
label = gtk_label_new (NULL);
if (ismarkup)
{
gtk_label_set_markup (GTK_LABEL (label), text);
}
else
{
gtk_label_set_text (GTK_LABEL (label), text);
}
gtk_misc_set_alignment (GTK_MISC (label), 0, 0);
gtk_widget_show (label);
gtk_icon_size_lookup (GTK_ICON_SIZE_MENU, NULL, &size);
pixbuf = gtk_source_mark_attributes_render_icon (attrs,
GTK_WIDGET (view),
size);
if (pixbuf != NULL)
{
GtkWidget *image;
PangoLayoutLine *line;
PangoRectangle rect;
GtkWidget *align;
GdkPixbuf *copy;
align = gtk_alignment_new (0, 0, 0, 0);
gtk_widget_show (align);
copy = gdk_pixbuf_copy (pixbuf);
image = gtk_image_new_from_pixbuf (copy);
g_object_unref (copy);
gtk_misc_set_alignment (GTK_MISC (image), 0, 0);
gtk_widget_show (image);
/* Measure up to align exact */
line = pango_layout_get_line (gtk_label_get_layout (GTK_LABEL (label)), 0);
pango_layout_line_get_pixel_extents (line, NULL, &rect);
gtk_alignment_set_padding (GTK_ALIGNMENT (align),
(rect.height > size ? rect.height - size : size - rect.height) - 1,
0, 0, 0);
if (rect.height > size)
{
gtk_container_add (GTK_CONTAINER (align),
image);
image = align;
}
else if (size > rect.height)
{
gtk_container_add (GTK_CONTAINER (align),
label);
label = align;
}
else
{
gtk_widget_destroy (align);
}
gtk_box_pack_start (GTK_BOX (hbox),
image,
FALSE,
FALSE,
0);
}
gtk_box_pack_end (GTK_BOX (hbox),
label,
TRUE,
TRUE,
0);
if (g_slist_length (marks) != 1)
{
GtkWidget *separator;
separator = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
gtk_widget_show (separator);
gtk_box_pack_start (GTK_BOX (vbox),
separator,
FALSE,
FALSE,
0);
}
g_free (text);
}
if (vbox == NULL)
{
return FALSE;
}
gtk_tooltip_set_custom (tooltip, vbox);
return TRUE;
}
