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libccc Reference Manual | ![]() |
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As you already saw in the previous section; you trigger updates
by calling cc_item_dirty
.
Once a view requests the item to be redrawn, it triggers the
CcSimpleItem::render
signal.
static void render_item (CcItem* item, CcView* view, cairo_t* cr, gpointer user_data) { /* render the item to the canvas */ cairo_rectangle (cr, 0.0, 0.0, 100.0, 100.0); cairo_set_source_rgba (cr, 1.0, 1.0, 1.0); cairo_fill (cr); } … g_signal_connect (custom_item, "render", G_CALLBACK (render_item), NULL); …