gboolean
expose_handler (GtkWidget* window,
GdkEventExpose* event,
gpointer data)
{
cairo_t* cr = NULL;
GtkAllocation a;
gtk_widget_get_allocation (window, &a);
cr = gdk_cairo_create (gtk_widget_get_window (window));
/* clear and render drop-shadow and bubble-background */
cairo_scale (cr, 1.0f, 1.0f);
cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
cairo_paint (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
if (g_distance < 1.0f)
{
tile_paint_with_padding (g_tile,
cr,
0.0f,
0.0f,
a.width,
a.height,
g_distance,
1.0f - g_distance);
gtk_window_set_opacity (GTK_WINDOW (window), 0.3f + g_distance * 0.7f);
}
else
{
tile_paint_with_padding (g_tile,
cr,
0.0f,
0.0f,
a.width,
a.height,
g_distance,
0.0f);
gtk_window_set_opacity (GTK_WINDOW (window), 1.0f);
}
cairo_destroy (cr);
return TRUE;
}
void
setup_tile (gint w, gint h)
{
cairo_status_t status;
cairo_t* cr = NULL;
cairo_surface_t* cr_surf = NULL;
gdouble width = (gdouble) w;
gdouble height = (gdouble) h;
cairo_surface_t* tmp = NULL;
cairo_surface_t* dummy_surf = NULL;
cairo_surface_t* norm_surf = NULL;
cairo_surface_t* blur_surf = NULL;
raico_blur_t* blur = NULL;
tile_t* tile = NULL;
// create tmp. surface for scratch
cr_surf = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
3 * BUBBLE_SHADOW_SIZE,
3 * BUBBLE_SHADOW_SIZE);
status = cairo_surface_status (cr_surf);
if (status != CAIRO_STATUS_SUCCESS)
g_print ("Error: \"%s\"\n", cairo_status_to_string (status));
// create context for that tmp. scratch surface
cr = cairo_create (cr_surf);
status = cairo_status (cr);
if (status != CAIRO_STATUS_SUCCESS)
{
cairo_surface_destroy (cr_surf);
g_print ("Error: \"%s\"\n", cairo_status_to_string (status));
}
// clear, render drop-shadow and bubble-background in scratch-surface
cairo_scale (cr, 1.0f, 1.0f);
cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
cairo_paint (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
if (g_composited)
{
draw_shadow (cr,
width,
height,
BUBBLE_SHADOW_SIZE,
CORNER_RADIUS);
cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
draw_round_rect (cr,
1.0f,
(gdouble) BUBBLE_SHADOW_SIZE,
(gdouble) BUBBLE_SHADOW_SIZE,
(gdouble) CORNER_RADIUS,
(gdouble) (width - 2.0f * BUBBLE_SHADOW_SIZE),
(gdouble) (height - 2.0f* BUBBLE_SHADOW_SIZE));
cairo_fill (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
cairo_set_source_rgba (cr,
BUBBLE_BG_COLOR_R,
BUBBLE_BG_COLOR_G,
BUBBLE_BG_COLOR_B,
0.95f);
}
else
cairo_set_source_rgb (cr,
BUBBLE_BG_COLOR_R,
BUBBLE_BG_COLOR_G,
BUBBLE_BG_COLOR_B);
draw_round_rect (cr,
1.0f,
BUBBLE_SHADOW_SIZE,
BUBBLE_SHADOW_SIZE,
CORNER_RADIUS,
(gdouble) (width - 2.0f * BUBBLE_SHADOW_SIZE),
(gdouble) (height - 2.0f * BUBBLE_SHADOW_SIZE));
cairo_fill (cr);
// create tmp. copy of scratch-surface
tmp = cairo_image_surface_create_for_data (
cairo_image_surface_get_data (cr_surf),
cairo_image_surface_get_format (cr_surf),
3 * BUBBLE_SHADOW_SIZE,
3 * BUBBLE_SHADOW_SIZE,
cairo_image_surface_get_stride (cr_surf));
dummy_surf = copy_surface (tmp);
cairo_surface_destroy (tmp);
// create normal-state surface for tile from copy of scratch-surface
tmp = cairo_image_surface_create_for_data (
cairo_image_surface_get_data (dummy_surf),
cairo_image_surface_get_format (dummy_surf),
2 * BUBBLE_SHADOW_SIZE,
2 * BUBBLE_SHADOW_SIZE,
cairo_image_surface_get_stride (dummy_surf));
norm_surf = copy_surface (tmp);
cairo_surface_destroy (tmp);
// blur tmp. copy of scratch-surface
blur = raico_blur_create (RAICO_BLUR_QUALITY_LOW);
raico_blur_set_radius (blur, 6);
raico_blur_apply (blur, dummy_surf);
raico_blur_destroy (blur);
// create blurred-state surface for tile
tmp = cairo_image_surface_create_for_data (
cairo_image_surface_get_data (dummy_surf),
cairo_image_surface_get_format (dummy_surf),
2 * BUBBLE_SHADOW_SIZE,
2 * BUBBLE_SHADOW_SIZE,
cairo_image_surface_get_stride (dummy_surf));
blur_surf = copy_surface (tmp);
cairo_surface_destroy (tmp);
// actually create the tile with padding in mind
tile = tile_new_for_padding (norm_surf, blur_surf);
destroy_cloned_surface (norm_surf);
destroy_cloned_surface (blur_surf);
destroy_cloned_surface (dummy_surf);
cairo_destroy (cr);
cairo_surface_destroy (cr_surf);
norm_surf = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, w, h);
cr = cairo_create (norm_surf);
cairo_scale (cr, 1.0f, 1.0f);
cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
cairo_paint (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
tile_paint_with_padding (tile, cr, 0.0f, 0.0f, w, h, 1.0f, 0.0f);
cairo_destroy (cr);
blur_surf = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, w, h);
cr = cairo_create (blur_surf);
cairo_scale (cr, 1.0f, 1.0f);
cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
cairo_paint (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
tile_paint_with_padding (tile, cr, 0.0f, 0.0f, w, h, 0.0f, 1.0f);
cairo_destroy (cr);
g_tile = tile_new_for_padding (norm_surf, blur_surf);
// clean up
tile_destroy (tile);
cairo_surface_destroy (norm_surf);
cairo_surface_destroy (blur_surf);
}