static Renderer *
renderer_at_x (GtkSourceGutter *gutter,
gint x,
gint *start,
gint *width)
{
GList *item;
gint s;
gint w;
update_gutter_size (gutter);
s = 0;
for (item = gutter->priv->renderers; item; item = g_list_next (item))
{
Renderer *renderer = item->data;
gint xpad;
if (!gtk_source_gutter_renderer_get_visible (renderer->renderer))
{
continue;
}
w = gtk_source_gutter_renderer_get_size (renderer->renderer);
gtk_source_gutter_renderer_get_padding (renderer->renderer,
&xpad,
NULL);
s += xpad;
if (w > 0 && x >= s && x < s + w)
{
if (width)
{
*width = w;
}
if (start)
{
*start = s;
}
return renderer;
}
s += w + xpad;
}
return NULL;
}
static gint
calculate_gutter_size (GtkSourceGutter *gutter,
GArray *sizes)
{
GList *item;
gint total_width = 0;
/* Calculate size */
for (item = gutter->priv->renderers; item; item = g_list_next (item))
{
Renderer *renderer = item->data;
gint width;
if (!gtk_source_gutter_renderer_get_visible (renderer->renderer))
{
width = 0;
}
else
{
gint xpad;
gint size;
size = gtk_source_gutter_renderer_get_size (renderer->renderer);
gtk_source_gutter_renderer_get_padding (renderer->renderer,
&xpad,
NULL);
width = size + 2 * xpad;
}
if (sizes)
{
g_array_append_val (sizes, width);
}
total_width += width + gutter->priv->xpad;
}
if (gutter->priv->renderers)
{
total_width += gutter->priv->xpad;
}
return total_width;
}
/* Call gtk_source_gutter_renderer_begin() on each renderer. */
static void
begin_draw (GtkSourceGutter *gutter,
GtkTextView *view,
GArray *renderer_widths,
LinesInfo *info,
cairo_t *cr)
{
GdkRectangle background_area;
GdkRectangle cell_area;
GList *l;
gint renderer_num;
background_area.x = 0;
background_area.height = info->total_height;
gtk_text_view_buffer_to_window_coords (view,
gutter->priv->window_type,
0,
g_array_index (info->buffer_coords, gint, 0),
NULL,
&background_area.y);
cell_area = background_area;
for (l = gutter->priv->renderers, renderer_num = 0;
l != NULL;
l = l->next, renderer_num++)
{
Renderer *renderer = l->data;
gint width;
gint xpad;
width = g_array_index (renderer_widths, gint, renderer_num);
if (!gtk_source_gutter_renderer_get_visible (renderer->renderer))
{
g_assert_cmpint (width, ==, 0);
continue;
}
gtk_source_gutter_renderer_get_padding (renderer->renderer,
&xpad,
NULL);
background_area.width = width;
cell_area.width = background_area.width - 2 * xpad;
cell_area.x = background_area.x + xpad;
cairo_save (cr);
gdk_cairo_rectangle (cr, &background_area);
cairo_clip (cr);
gtk_source_gutter_renderer_begin (renderer->renderer,
cr,
&background_area,
&cell_area,
&info->start,
&info->end);
cairo_restore (cr);
background_area.x += background_area.width;
}
static gboolean
on_view_draw (GtkSourceView *view,
cairo_t *cr,
GtkSourceGutter *gutter)
{
GdkWindow *window;
GtkTextView *text_view;
GArray *sizes;
GdkRectangle clip;
gint x, y;
gint y1, y2;
GArray *numbers;
GArray *pixels;
GArray *heights;
GtkTextIter cur;
gint cur_line;
gint count;
gint i;
GList *item;
GtkTextIter start;
GtkTextIter end;
GtkTextBuffer *buffer;
GdkRectangle background_area;
GdkRectangle cell_area;
GtkTextIter selection_start;
GtkTextIter selection_end;
gboolean has_selection;
gint idx;
GtkStyleContext *style_context;
GdkRGBA fg_color;
window = gtk_source_gutter_get_window (gutter);
if (window == NULL || !gtk_cairo_should_draw_window (cr, window))
{
return FALSE;
}
gtk_cairo_transform_to_window (cr, GTK_WIDGET (view), window);
text_view = GTK_TEXT_VIEW (view);
if (!gdk_cairo_get_clip_rectangle (cr, &clip))
{
return FALSE;
}
gutter->priv->is_drawing = TRUE;
buffer = gtk_text_view_get_buffer (text_view);
gdk_window_get_pointer (window, &x, &y, NULL);
y1 = clip.y;
y2 = y1 + clip.height;
/* get the extents of the line printing */
gtk_text_view_window_to_buffer_coords (text_view,
gutter->priv->window_type,
0,
y1,
NULL,
&y1);
gtk_text_view_window_to_buffer_coords (text_view,
gutter->priv->window_type,
0,
y2,
NULL,
&y2);
numbers = g_array_new (FALSE, FALSE, sizeof (gint));
pixels = g_array_new (FALSE, FALSE, sizeof (gint));
heights = g_array_new (FALSE, FALSE, sizeof (gint));
sizes = g_array_new (FALSE, FALSE, sizeof (gint));
calculate_gutter_size (gutter, sizes);
i = 0;
x = 0;
background_area.x = 0;
background_area.height = get_lines (text_view,
y1,
y2,
pixels,
heights,
numbers,
&count,
&start,
&end);
cell_area.x = gutter->priv->xpad;
cell_area.height = background_area.height;
gtk_text_view_buffer_to_window_coords (text_view,
gutter->priv->window_type,
0,
g_array_index (pixels, gint, 0),
NULL,
&background_area.y);
cell_area.y = background_area.y;
item = gutter->priv->renderers;
idx = 0;
style_context = gtk_widget_get_style_context (GTK_WIDGET (view));
gtk_style_context_get_color (style_context,
gtk_widget_get_state (GTK_WIDGET (view)),
&fg_color);
gdk_cairo_set_source_rgba (cr, &fg_color);
while (item)
{
Renderer *renderer = item->data;
gint xpad;
gint width;
width = g_array_index (sizes, gint, idx++);
if (gtk_source_gutter_renderer_get_visible (renderer->renderer))
{
gtk_source_gutter_renderer_get_padding (renderer->renderer,
&xpad,
NULL);
background_area.width = width;
cell_area.width = width - 2 * xpad;
cell_area.x = background_area.x + xpad;
cairo_save (cr);
gdk_cairo_rectangle (cr, &background_area);
cairo_clip (cr);
gtk_source_gutter_renderer_begin (renderer->renderer,
cr,
&background_area,
&cell_area,
&start,
&end);
cairo_restore (cr);
background_area.x += background_area.width;
}
item = g_list_next (item);
}
gtk_text_buffer_get_iter_at_mark (buffer,
&cur,
gtk_text_buffer_get_insert (buffer));
cur_line = gtk_text_iter_get_line (&cur);
gtk_text_buffer_get_selection_bounds (buffer,
&selection_start,
&selection_end);
has_selection = !gtk_text_iter_equal (&selection_start, &selection_end);
if (has_selection)
{
if (!gtk_text_iter_starts_line (&selection_start))
{
gtk_text_iter_set_line_offset (&selection_start, 0);
}
if (!gtk_text_iter_ends_line (&selection_end))
{
gtk_text_iter_forward_to_line_end (&selection_end);
}
}
for (i = 0; i < count; ++i)
{
gint pos;
gint line_to_paint;
end = start;
if (!gtk_text_iter_ends_line (&end))
{
gtk_text_iter_forward_to_line_end (&end);
}
gtk_text_view_buffer_to_window_coords (text_view,
gutter->priv->window_type,
0,
g_array_index (pixels, gint, i),
NULL,
&pos);
line_to_paint = g_array_index (numbers, gint, i);
background_area.y = pos;
background_area.height = g_array_index (heights, gint, i);
background_area.x = 0;
idx = 0;
for (item = gutter->priv->renderers; item; item = g_list_next (item))
{
Renderer *renderer;
gint width;
GtkSourceGutterRendererState state;
gint xpad;
gint ypad;
renderer = item->data;
width = g_array_index (sizes, gint, idx++);
if (!gtk_source_gutter_renderer_get_visible (renderer->renderer))
{
continue;
}
gtk_source_gutter_renderer_get_padding (renderer->renderer,
&xpad,
&ypad);
background_area.width = width;
cell_area.y = background_area.y + ypad;
cell_area.height = background_area.height - 2 * ypad;
cell_area.x = background_area.x + xpad;
cell_area.width = background_area.width - 2 * xpad;
state = GTK_SOURCE_GUTTER_RENDERER_STATE_NORMAL;
if (line_to_paint == cur_line)
{
state |= GTK_SOURCE_GUTTER_RENDERER_STATE_CURSOR;
}
if (has_selection &&
gtk_text_iter_in_range (&start,
&selection_start,
&selection_end))
{
state |= GTK_SOURCE_GUTTER_RENDERER_STATE_SELECTED;
}
if (renderer->prelit >= 0 && cell_area.y <= renderer->prelit && cell_area.y + cell_area.height >= renderer->prelit)
{
state |= GTK_SOURCE_GUTTER_RENDERER_STATE_PRELIT;
}
gtk_source_gutter_renderer_query_data (renderer->renderer,
&start,
&end,
state);
cairo_save (cr);
gdk_cairo_rectangle (cr, &background_area);
cairo_clip (cr);
/* Call render with correct area */
gtk_source_gutter_renderer_draw (renderer->renderer,
cr,
&background_area,
&cell_area,
&start,
&end,
state);
cairo_restore (cr);
background_area.x += background_area.width;
}
gtk_text_iter_forward_line (&start);
}
for (item = gutter->priv->renderers; item; item = g_list_next (item))
{
Renderer *renderer = item->data;
if (gtk_source_gutter_renderer_get_visible (renderer->renderer))
{
gtk_source_gutter_renderer_end (renderer->renderer);
}
}
g_array_free (numbers, TRUE);
g_array_free (pixels, TRUE);
g_array_free (heights, TRUE);
g_array_free (sizes, TRUE);
gutter->priv->is_drawing = FALSE;
return FALSE;
}
static gboolean
redraw_for_window (GtkSourceGutter *gutter,
GdkEventAny *event,
gboolean act_on_window,
gint x,
gint y)
{
Renderer *at_x = NULL;
GList *item;
gboolean redraw;
gint start;
if (event->window != gtk_source_gutter_get_window (gutter) && act_on_window)
{
return FALSE;
}
if (act_on_window)
{
at_x = renderer_at_x (gutter, x, &start, NULL);
}
redraw = FALSE;
for (item = gutter->priv->renderers; item; item = g_list_next (item))
{
Renderer *renderer = item->data;
gint prelit = renderer->prelit;
if (!gtk_source_gutter_renderer_get_visible (renderer->renderer))
{
renderer->prelit = -1;
}
else
{
if (renderer != at_x || !act_on_window)
{
renderer->prelit = -1;
}
else if (renderer_query_activatable (gutter,
renderer,
(GdkEvent *)event,
x,
y,
NULL,
NULL,
start))
{
renderer->prelit = y;
}
else
{
renderer->prelit = -1;
}
}
redraw |= (renderer->prelit != prelit);
}
if (redraw)
{
do_redraw (gutter);
}
return FALSE;
}
