static void
recalculate_size (GtkSourceGutterRendererLines *renderer)
{
gint num_lines;
gint num_digits = 0;
GtkTextBuffer *buffer;
buffer = get_buffer (renderer);
num_lines = gtk_text_buffer_get_line_count (buffer);
num_digits = count_num_digits (num_lines);
if (num_digits != renderer->priv->num_line_digits)
{
gchar markup[24];
gint size;
renderer->priv->num_line_digits = num_digits;
num_lines = MAX (num_lines, 99);
g_snprintf (markup, sizeof markup, "<b>%d</b>", num_lines);
gtk_source_gutter_renderer_text_measure_markup (GTK_SOURCE_GUTTER_RENDERER_TEXT (renderer),
markup,
&size,
NULL);
gtk_source_gutter_renderer_set_size (GTK_SOURCE_GUTTER_RENDERER (renderer),
size);
}
}
static void
gutter_renderer_text_begin (GtkSourceGutterRenderer *renderer,
cairo_t *cr,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GtkTextIter *start,
GtkTextIter *end)
{
GtkSourceGutterRendererText *text = GTK_SOURCE_GUTTER_RENDERER_TEXT (renderer);
GtkTextView *view;
view = gtk_source_gutter_renderer_get_view (renderer);
g_clear_object (&text->priv->cached_layout);
text->priv->cached_layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), NULL);
if (GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_text_parent_class)->begin != NULL)
{
GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_text_parent_class)->begin (renderer,
cr,
background_area,
cell_area,
start,
end);
}
}
static void
gutter_renderer_query_data (GtkSourceGutterRenderer *renderer,
GtkTextIter *start,
GtkTextIter *end,
GtkSourceGutterRendererState state)
{
GtkSourceGutterRendererLines *lines = GTK_SOURCE_GUTTER_RENDERER_LINES (renderer);
gchar text[24];
gint line;
gint len;
gboolean current_line;
line = gtk_text_iter_get_line (start) + 1;
current_line = (state & GTK_SOURCE_GUTTER_RENDERER_STATE_CURSOR) &&
lines->priv->cursor_visible;
if (current_line)
{
len = g_snprintf (text, sizeof text, "<b>%d</b>", line);
}
else
{
len = g_snprintf (text, sizeof text, "%d", line);
}
gtk_source_gutter_renderer_text_set_markup (GTK_SOURCE_GUTTER_RENDERER_TEXT (renderer),
text,
len);
}
static void
gtk_source_gutter_renderer_text_finalize (GObject *object)
{
GtkSourceGutterRendererText *renderer = GTK_SOURCE_GUTTER_RENDERER_TEXT (object);
g_free (renderer->priv->text);
G_OBJECT_CLASS (gtk_source_gutter_renderer_text_parent_class)->finalize (object);
}
static void
gutter_renderer_text_end (GtkSourceGutterRenderer *renderer)
{
GtkSourceGutterRendererText *text = GTK_SOURCE_GUTTER_RENDERER_TEXT (renderer);
g_clear_object (&text->priv->cached_layout);
if (GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_text_parent_class)->end != NULL)
{
GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_text_parent_class)->end (renderer);
}
}
static void
gutter_renderer_text_begin (GtkSourceGutterRenderer *renderer,
cairo_t *cr,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GtkTextIter *start,
GtkTextIter *end)
{
GtkSourceGutterRendererText *text = GTK_SOURCE_GUTTER_RENDERER_TEXT (renderer);
create_layout (text, GTK_WIDGET (gtk_source_gutter_renderer_get_view (renderer)));
if (GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_text_parent_class)->begin != NULL)
{
GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_text_parent_class)->begin (renderer,
cr,
background_area,
cell_area,
start,
end);
}
}
static void
gtk_source_gutter_renderer_text_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkSourceGutterRendererText *renderer;
renderer = GTK_SOURCE_GUTTER_RENDERER_TEXT (object);
switch (prop_id)
{
case PROP_MARKUP:
g_value_set_string (value, renderer->priv->is_markup ? renderer->priv->text : NULL);
break;
case PROP_TEXT:
g_value_set_string (value, !renderer->priv->is_markup ? renderer->priv->text : NULL);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_source_gutter_renderer_text_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkSourceGutterRendererText *renderer;
renderer = GTK_SOURCE_GUTTER_RENDERER_TEXT (object);
switch (prop_id)
{
case PROP_MARKUP:
set_text (renderer, g_value_get_string (value), -1, TRUE);
break;
case PROP_TEXT:
set_text (renderer, g_value_get_string (value), -1, FALSE);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gutter_renderer_text_draw (GtkSourceGutterRenderer *renderer,
cairo_t *cr,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GtkTextIter *start,
GtkTextIter *end,
GtkSourceGutterRendererState state)
{
GtkSourceGutterRendererText *text = GTK_SOURCE_GUTTER_RENDERER_TEXT (renderer);
GtkTextView *view;
gint width;
gint height;
gfloat xalign;
gfloat yalign;
GtkSourceGutterRendererAlignmentMode mode;
gint x = 0;
gint y = 0;
GtkStyleContext *context;
/* Chain up to draw background */
if (GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_text_parent_class)->draw != NULL)
{
GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_text_parent_class)->draw (renderer,
cr,
background_area,
cell_area,
start,
end,
state);
}
view = gtk_source_gutter_renderer_get_view (renderer);
if (text->priv->is_markup)
{
pango_layout_set_markup (text->priv->cached_layout,
text->priv->text,
-1);
}
else
{
pango_layout_set_text (text->priv->cached_layout,
text->priv->text,
-1);
}
pango_layout_get_pixel_size (text->priv->cached_layout, &width, &height);
gtk_source_gutter_renderer_get_alignment (renderer,
&xalign,
&yalign);
/* Avoid calculations if we don't wrap text */
if (gtk_text_view_get_wrap_mode (view) == GTK_WRAP_NONE)
{
mode = GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_CELL;
}
else
{
mode = gtk_source_gutter_renderer_get_alignment_mode (renderer);
}
switch (mode)
{
case GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_CELL:
x = cell_area->x + (cell_area->width - width) * xalign;
y = cell_area->y + (cell_area->height - height) * yalign;
break;
case GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_FIRST:
center_on (view,
cell_area,
start,
width,
height,
xalign,
yalign,
&x,
&y);
break;
case GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_LAST:
center_on (view,
cell_area,
end,
width,
height,
xalign,
yalign,
&x,
&y);
break;
default:
g_assert_not_reached ();
}
context = gtk_widget_get_style_context (GTK_WIDGET (view));
gtk_render_layout (context, cr, x, y, text->priv->cached_layout);
}
static void
gutter_renderer_text_draw (GtkSourceGutterRenderer *renderer,
cairo_t *cr,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GtkTextIter *start,
GtkTextIter *end,
GtkSourceGutterRendererState state)
{
GtkSourceGutterRendererText *text = GTK_SOURCE_GUTTER_RENDERER_TEXT (renderer);
gint width;
gint height;
PangoAttrList *attr_list;
gfloat xalign;
gfloat yalign;
GtkSourceGutterRendererAlignmentMode mode;
GtkTextView *view;
gint x = 0;
gint y = 0;
GtkStyleContext *context;
/* Chain up to draw background */
if (GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_text_parent_class)->draw != NULL)
{
GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_text_parent_class)->draw (renderer,
cr,
background_area,
cell_area,
start,
end,
state);
}
view = gtk_source_gutter_renderer_get_view (renderer);
if (text->priv->is_markup)
{
pango_layout_set_markup (text->priv->cached_layout,
text->priv->text,
-1);
}
else
{
pango_layout_set_text (text->priv->cached_layout,
text->priv->text,
-1);
}
attr_list = pango_layout_get_attributes (text->priv->cached_layout);
if (!attr_list)
{
pango_layout_set_attributes (text->priv->cached_layout,
pango_attr_list_copy (text->priv->cached_attr_list));
}
else
{
pango_attr_list_insert (attr_list,
pango_attribute_copy (text->priv->fg_attr));
}
pango_layout_get_pixel_size (text->priv->cached_layout, &width, &height);
gtk_source_gutter_renderer_get_alignment (renderer,
&xalign,
&yalign);
mode = gtk_source_gutter_renderer_get_alignment_mode (renderer);
switch (mode)
{
case GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_CELL:
x = cell_area->x + (cell_area->width - width) * xalign;
y = cell_area->y + (cell_area->height - height) * yalign;
break;
case GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_FIRST:
center_on (renderer,
cell_area,
start,
width,
height,
xalign,
yalign,
&x,
&y);
break;
case GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_LAST:
center_on (renderer,
cell_area,
end,
width,
height,
xalign,
yalign,
&x,
&y);
break;
}
context = gtk_widget_get_style_context (GTK_WIDGET (view));
gtk_render_layout (context, cr, x, y, text->priv->cached_layout);
}