100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
#include "../graph.h"
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#include "../module_registry.h"
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typedef struct {
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GraphNode as_GraphNode;
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ModifierSet modifiers;
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ModifierOperation operation;
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} ModifiersGraphNode;
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static bool
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handle_event(EventPositionBase * self, EventNode * event)
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{
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ModifiersGraphNode *node = DOWNCAST(ModifiersGraphNode, GraphNode, DOWNCAST(GraphNode, EventPositionBase, self));
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size_t count = node->as_GraphNode.outputs.length;
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if (!count) {
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event_destroy(event);
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return true;
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}
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modifier_set_operation_from(&event->data.modifiers, node->modifiers, node->operation);
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graph_node_broadcast_forward_event(&node->as_GraphNode, event);
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return true;
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}
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static GraphNode *
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create(GraphNodeSpecification * spec, GraphNodeConfig * config, InitializationEnvironment * env)
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{
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if (!config->options) {
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return NULL;
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}
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ModifiersGraphNode * node = T_ALLOC(1, ModifiersGraphNode);
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if (!node) {
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return NULL;
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}
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const char *operation_name;
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config_setting_lookup_string(config->options, "operation", &operation_name);
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ModifierOperation op = modifier_operation_parse(operation_name);
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if (op < 0) {
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free(node);
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return NULL;
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}
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config_setting_t *modifiers_setting = config_setting_get_member(config->options, "modifiers");
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if (!modifiers_setting) {
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free(node);
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return NULL;
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}
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ModifierSet modifier_set = EMPTY_MODIFIER_SET;
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size_t length = config_setting_length(modifiers_setting);
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for (size_t i = 0; i < length; ++i) {
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long long mod = env_resolve_constant_or(env, config_setting_get_elem(modifiers_setting, i), -1);
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if (mod < 0 || mod > MODIFIER_MAX) {
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continue;
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}
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modifier_set_set(&modifier_set, mod);
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}
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*node = (ModifiersGraphNode) {
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.as_GraphNode = {
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.as_EventPositionBase = {
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.handle_event = &handle_event,
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.waiting_new_event = false,
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},
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.specification = spec,
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.inputs = EMPTY_GRAPH_CHANNEL_LIST,
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.outputs = EMPTY_GRAPH_CHANNEL_LIST,
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},
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.modifiers = modifier_set,
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.operation = op,
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};
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return &node->as_GraphNode;
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}
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static void destroy
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(GraphNodeSpecification * self, GraphNode * target)
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{
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(void) self;
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ModifiersGraphNode * node = DOWNCAST(ModifiersGraphNode, GraphNode, target);
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modifier_set_destruct(&node->modifiers);
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free(target);
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}
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GraphNodeSpecification nodespec_modifiers = (GraphNodeSpecification) {
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.create = &create,
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.destroy = &destroy,
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.register_io = NULL,
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.name = "modifiers",
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.documentation = "Sets/unsets/toggles modifiers in an event\nAccepts events on any connector\nSends events on all connectors"
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"\nOption 'operation' (required): the operation to apply to the event modifier set ('set'/'unset'/'toggle')"
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"\nOption 'modifiers' (required): collection of integers --- the set of modifiers to operate on"
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,
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};
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MODULE_CONSTRUCTOR(init)
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{
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register_graph_node_specification(&nodespec_modifiers);
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}
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