forked from AuroraMiddleware/gtk
d701a89281
Language bindings—especially ones based on introspection—cannot deal with custom type hiearchies. Luckily for us, GType has a derivable type with low overhead: GTypeInstance. By turning GskRenderNode into a GTypeInstance, and creating derived types for each class of node, we can provide an introspectable API to our non-C API consumers, with no functional change to the C API itself.
52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
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#include <glib/gprintf.h>
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#include "gskglnodesampleprivate.h"
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#include "gskrendernodeprivate.h"
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void
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node_sample_init (NodeSample *self)
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{
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memset (self->nodes, 0, sizeof (self->nodes));
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self->count = 0;
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}
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void
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node_sample_reset (NodeSample *self)
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{
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node_sample_init (self);
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}
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void
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node_sample_add (NodeSample *self,
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GskRenderNode *node)
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{
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const guint node_type = gsk_render_node_get_node_type (node);
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g_assert (node_type <= N_NODE_TYPES);
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if (self->nodes[node_type].class_name == NULL)
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self->nodes[node_type].class_name = g_type_name_from_instance ((GTypeInstance *) node);
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self->nodes[node_type].count ++;
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self->count ++;
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}
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void
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node_sample_print (const NodeSample *self,
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const char *prefix)
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{
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guint i;
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g_printf ("%s:\n", prefix);
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for (i = 0; i < N_NODE_TYPES; i ++)
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{
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if (self->nodes[i].count > 0)
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{
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double p = (double)self->nodes[i].count / (double)self->count;
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g_printf ("%s: %u (%.2f%%)\n", self->nodes[i].class_name, self->nodes[i].count, p * 100.0);
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}
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}
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}
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