void
_cairo_draw_thumbnail_frame (cairo_t *cr,
int x,
int y,
int width,
int height)
{
cairo_save (cr);
cairo_translate (cr, 0.5, 0.5);
cairo_set_line_width (cr, 0.5);
cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
/* the drop shadow */
cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.33);
_cairo_draw_rounded_box (cr,
x + 2,
y + 2,
width - 1,
height - 1,
0);
cairo_fill (cr);
/* the outer frame */
cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
_cairo_draw_rounded_box (cr,
x,
y,
width - 1,
height - 1,
0);
cairo_fill_preserve (cr);
cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.55);
cairo_stroke (cr);
cairo_restore (cr);
}
void
_cairo_draw_drop_shadow (cairo_t *cr,
double x,
double y,
double w,
double h,
double r)
{
int i;
cairo_save (cr);
cairo_set_line_width (cr, 1);
for (i = r; i >= 0; i--) {
cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, (0.1 / r)* (r - i + 1));
_cairo_draw_rounded_box (cr,
x + r - i,
y + r - i,
w + (i * 2),
h + (i * 2),
r);
cairo_fill (cr);
}
cairo_restore (cr);
}
cairo_surface_t *
_cairo_create_dnd_icon (cairo_surface_t *image,
int icon_size,
ItemStyle style,
gboolean multi_dnd)
{
cairo_rectangle_int_t thumbnail_rect;
cairo_surface_t *thumbnail;
cairo_rectangle_int_t icon_rect;
int icon_padding;
cairo_rectangle_int_t frame_rect;
cairo_surface_t *icon;
cairo_t *cr;
thumbnail_rect.width = cairo_image_surface_get_width (image);
thumbnail_rect.height = cairo_image_surface_get_height (image);
if (scale_keeping_ratio (&thumbnail_rect.width, &thumbnail_rect.height, icon_size, icon_size, FALSE))
thumbnail = _cairo_image_surface_scale_fast (image, thumbnail_rect.width, thumbnail_rect.height);
else
thumbnail = cairo_surface_reference (image);
switch (style) {
case ITEM_STYLE_ICON:
icon_padding = 8;
icon_rect.width = icon_size + icon_padding;
icon_rect.height = icon_size + icon_padding;
thumbnail_rect.x = round ((double) (icon_rect.width - thumbnail_rect.width) / 2.0);
thumbnail_rect.y = round ((double) (icon_rect.height - thumbnail_rect.height) / 2.0);
frame_rect.x = 0;
frame_rect.y = 0;
frame_rect.width = icon_rect.width;
frame_rect.height = icon_rect.height;
break;
case ITEM_STYLE_IMAGE:
icon_padding = 8; /* padding for the frame border */
icon_rect.width = thumbnail_rect.width + icon_padding;
icon_rect.height = thumbnail_rect.height + icon_padding;
thumbnail_rect.x = 3;
thumbnail_rect.y = 3;
frame_rect.x = 0;
frame_rect.y = 0;
frame_rect.width = thumbnail_rect.width + icon_padding - 2;
frame_rect.height = thumbnail_rect.height + icon_padding - 2;
break;
case ITEM_STYLE_VIDEO:
icon_padding = 4; /* padding for the drop shadow effect */
icon_rect.width = thumbnail_rect.width + icon_padding;
icon_rect.height = icon_size + icon_padding;
thumbnail_rect.x = 0;
thumbnail_rect.y = round ((double) (icon_size - thumbnail_rect.height) / 2.0);
frame_rect.x = thumbnail_rect.x;
frame_rect.y = 0;
frame_rect.width = thumbnail_rect.width;
frame_rect.height = icon_size;
break;
}
if (multi_dnd) {
icon_rect.width += DRAG_ICON_THUMBNAIL_OFFSET;
icon_rect.height += DRAG_ICON_THUMBNAIL_OFFSET;
}
icon = _cairo_image_surface_create (CAIRO_FORMAT_ARGB32, icon_rect.width, icon_rect.height);
cr = cairo_create (icon);
switch (style) {
case ITEM_STYLE_ICON:
cairo_save (cr);
cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.2);
_cairo_draw_rounded_box (cr, frame_rect.x, frame_rect.y, frame_rect.width, frame_rect.height, 4);
cairo_fill (cr);
cairo_restore (cr);
break;
case ITEM_STYLE_IMAGE:
if (multi_dnd)
_cairo_draw_thumbnail_frame (cr, frame_rect.x + DRAG_ICON_THUMBNAIL_OFFSET, frame_rect.y + DRAG_ICON_THUMBNAIL_OFFSET, frame_rect.width, frame_rect.height);
_cairo_draw_thumbnail_frame (cr, frame_rect.x, frame_rect.y, frame_rect.width, frame_rect.height);
break;
case ITEM_STYLE_VIDEO:
_cairo_draw_film_background (cr, frame_rect.x, frame_rect.y, frame_rect.width, frame_rect.height);
break;
}
cairo_save (cr);
cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
cairo_set_source_surface (cr, thumbnail, thumbnail_rect.x, thumbnail_rect.y);
cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_FAST);
cairo_rectangle (cr, thumbnail_rect.x, thumbnail_rect.y, thumbnail_rect.width, thumbnail_rect.height);
cairo_fill (cr);
cairo_restore (cr);
if (style == ITEM_STYLE_VIDEO)
_cairo_draw_film_foreground (cr, frame_rect.x, frame_rect.y, frame_rect.width, frame_rect.height, icon_size);
cairo_surface_set_device_offset (icon, -icon_rect.width / 2, -icon_rect.height / 2);
cairo_surface_destroy (thumbnail);
cairo_destroy (cr);
return icon;
}
