Refactor...

src/snapshots.cpp

@@ -1,67 +0,0 @@
-#include "snapshots.h"
-
-static void _snapshot_stack_push(SnapshotStack* stack, Snapshot* snapshot) {
-  if (stack->top >= SNAPSHOT_STACK_MAX) {
-    for (int i = 0; i < SNAPSHOT_STACK_MAX - 1; i++)
-      stack->snapshots[i] = stack->snapshots[i + 1];
-    stack->top = SNAPSHOT_STACK_MAX - 1;
-  }
-  stack->snapshots[stack->top++] = *snapshot;
-}
-
-static Snapshot* _snapshot_stack_pop(SnapshotStack* stack) {
-  if (stack->top == 0)
-    return nullptr;
-  return &stack->snapshots[--stack->top];
-}
-
-static void _snapshot_set(Snapshots* self, Snapshot* snapshot) {
-  if (!snapshot)
-    return;
-
-  *self->anm2 = snapshot->anm2;
-  *self->reference = snapshot->reference;
-  self->preview->time = snapshot->time;
-  self->action = snapshot->action;
-
-  anm2_spritesheet_texture_pixels_upload(self->anm2);
-}
-
-Snapshot snapshot_get(Snapshots* self) {
-  Snapshot snapshot = {*self->anm2, *self->reference, self->preview->time, self->action};
-  anm2_spritesheet_texture_pixels_download(&snapshot.anm2);
-  return snapshot;
-}
-
-void snapshots_init(Snapshots* self, Anm2* anm2, Anm2Reference* reference, Preview* preview) {
-  self->anm2 = anm2;
-  self->reference = reference;
-  self->preview = preview;
-}
-
-void snapshots_reset(Snapshots* self) {
-  self->undoStack = SnapshotStack{};
-  self->redoStack = SnapshotStack{};
-  self->action.clear();
-}
-
-void snapshots_undo_push(Snapshots* self, Snapshot* snapshot) {
-  self->redoStack.top = 0;
-  _snapshot_stack_push(&self->undoStack, snapshot);
-}
-
-void snapshots_undo(Snapshots* self) {
-  if (Snapshot* snapshot = _snapshot_stack_pop(&self->undoStack)) {
-    Snapshot current = snapshot_get(self);
-    _snapshot_stack_push(&self->redoStack, &current);
-    _snapshot_set(self, snapshot);
-  }
-}
-
-void snapshots_redo(Snapshots* self) {
-  if (Snapshot* snapshot = _snapshot_stack_pop(&self->redoStack)) {
-    Snapshot current = snapshot_get(self);
-    _snapshot_stack_push(&self->undoStack, &current);
-    _snapshot_set(self, snapshot);
-  }
-}