static NemoIcon *
nemo_icon_container_item_at (NemoIconContainer *container,
int x, int y)
{
GList *p;
int size;
EelDRect point;
EelIRect canvas_point;
/* build the hit-test rectangle. Base the size on the scale factor to ensure that it is
* non-empty even at the smallest scale factor
*/
size = MAX (1, 1 + (1 / EEL_CANVAS (container)->pixels_per_unit));
point.x0 = x;
point.y0 = y;
point.x1 = x + size;
point.y1 = y + size;
for (p = container->details->icons; p != NULL; p = p->next) {
NemoIcon *icon;
icon = p->data;
eel_canvas_w2c (EEL_CANVAS (container),
point.x0,
point.y0,
&canvas_point.x0,
&canvas_point.y0);
eel_canvas_w2c (EEL_CANVAS (container),
point.x1,
point.y1,
&canvas_point.x1,
&canvas_point.y1);
if (nemo_icon_canvas_item_hit_test_rectangle (icon->item, canvas_point)) {
return icon;
}
}
return NULL;
}
static void
nautilus_selection_canvas_item_draw (EelCanvasItem *item,
cairo_t *cr,
cairo_region_t *region)
{
NautilusSelectionCanvasItem *self;
double x1, y1, x2, y2;
int cx1, cy1, cx2, cy2;
double i2w_dx, i2w_dy;
self = NAUTILUS_SELECTION_CANVAS_ITEM (item);
/* Get canvas pixel coordinates */
i2w_dx = 0.0;
i2w_dy = 0.0;
eel_canvas_item_i2w (item, &i2w_dx, &i2w_dy);
x1 = self->priv->x1 + i2w_dx;
y1 = self->priv->y1 + i2w_dy;
x2 = self->priv->x2 + i2w_dx;
y2 = self->priv->y2 + i2w_dy;
eel_canvas_w2c (item->canvas, x1, y1, &cx1, &cy1);
eel_canvas_w2c (item->canvas, x2, y2, &cx2, &cy2);
if (cx2 <= cx1 || cy2 <= cy1 ) {
return;
}
cairo_save (cr);
if (self->priv->fill_set) {
GdkRGBA actual_fill;
actual_fill = self->priv->fill_color;
if (self->priv->fade_out_handler_id != 0) {
actual_fill.alpha = self->priv->fade_out_fill_alpha;
}
gdk_cairo_set_source_rgba (cr, &actual_fill);
cairo_rectangle (cr,
cx1, cy1,
cx2 - cx1 + 1,
cy2 - cy1 + 1);
cairo_fill (cr);
}
if (self->priv->outline_set) {
GdkRGBA actual_outline;
actual_outline = self->priv->outline_color;
if (self->priv->fade_out_handler_id != 0) {
actual_outline.alpha = self->priv->fade_out_outline_alpha;
}
gdk_cairo_set_source_rgba (cr, &actual_outline);
cairo_set_line_width (cr, (int) self->priv->width);
if (self->priv->outline_stippling) {
double dash[2] = { DASH_ON, DASH_OFF };
cairo_set_dash (cr, dash, G_N_ELEMENTS (dash), 0);
}
cairo_rectangle (cr,
cx1 + 0.5, cy1 + 0.5,
cx2 - cx1,
cy2 - cy1);
cairo_stroke (cr);
}
cairo_restore (cr);
}
static void
nautilus_selection_canvas_item_update (EelCanvasItem *item,
double i2w_dx,
double i2w_dy,
gint flags)
{
NautilusSelectionCanvasItem *self;
NautilusSelectionCanvasItemDetails *priv;
double x1, y1, x2, y2;
int cx1, cy1, cx2, cy2;
int repaint_rects_count, i;
int width_pixels;
int width_lt, width_rb;
Rect update_rect, repaint_rects[4];
if (EEL_CANVAS_ITEM_CLASS (nautilus_selection_canvas_item_parent_class)->update)
(* EEL_CANVAS_ITEM_CLASS (nautilus_selection_canvas_item_parent_class)->update) (item, i2w_dx, i2w_dy, flags);
self = NAUTILUS_SELECTION_CANVAS_ITEM (item);
priv = self->priv;
x1 = priv->x1 + i2w_dx;
y1 = priv->y1 + i2w_dy;
x2 = priv->x2 + i2w_dx;
y2 = priv->y2 + i2w_dy;
eel_canvas_w2c (item->canvas, x1, y1, &cx1, &cy1);
eel_canvas_w2c (item->canvas, x2, y2, &cx2, &cy2);
update_rect = make_rect (cx1, cy1, cx2+1, cy2+1);
diff_rects (update_rect, priv->last_update_rect,
&repaint_rects_count, repaint_rects);
for (i = 0; i < repaint_rects_count; i++) {
eel_canvas_request_redraw (item->canvas,
repaint_rects[i].x0, repaint_rects[i].y0,
repaint_rects[i].x1, repaint_rects[i].y1);
}
priv->last_update_rect = update_rect;
if (priv->outline_set) {
/* Outline and bounding box */
width_pixels = (int) priv->width;
width_lt = width_pixels / 2;
width_rb = (width_pixels + 1) / 2;
cx1 -= width_lt;
cy1 -= width_lt;
cx2 += width_rb;
cy2 += width_rb;
update_rect = make_rect (cx1, cy1, cx2, cy2);
request_redraw_borders (item->canvas, &update_rect,
(width_lt + width_rb));
request_redraw_borders (item->canvas, &priv->last_outline_update_rect,
priv->last_outline_update_width);
priv->last_outline_update_rect = update_rect;
priv->last_outline_update_width = width_lt + width_rb;
item->x1 = cx1;
item->y1 = cy1;
item->x2 = cx2+1;
item->y2 = cy2+1;
} else {
item->x1 = cx1;
item->y1 = cy1;
item->x2 = cx2+1;
item->y2 = cy2+1;
}
}