shithub: orca

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Add field_resize_raw_if_necessary

--- a/field.c

+++ b/field.c

@@ -24,6 +24,12 @@

   f->width = (U16)width;

 }

+void field_resize_raw_if_necessary(Field* field, Usz height, Usz width) {

+  if (field->height != height || field->width != width) {

+    field_resize_raw(field, height, width);

+  }

+}

+

 void field_deinit(Field* f) { free(f->buffer); }

 void field_copy_subrect(Field* src, Field* dest, Usz src_y, Usz src_x,

--- a/field.h

+++ b/field.h

@@ -4,6 +4,7 @@

 void field_init(Field* field);

 void field_init_fill(Field* field, Usz height, Usz width, Glyph fill_char);

 void field_resize_raw(Field* field, Usz height, Usz width);

+void field_resize_raw_if_necessary(Field* field, Usz height, Usz width);

 void field_deinit(Field* field);

 void field_copy_subrect(Field* src, Field* dest, Usz src_y, Usz src_x,

                         Usz dest_y, Usz dest_x, Usz height, Usz width);

--- a/tui_main.c

+++ b/tui_main.c

@@ -245,6 +245,8 @@

       hist->first = new_node->next;

       hist->first->prev = NULL;

     }

+    field_resize_raw_if_necessary(&new_node->field, field->height,

+                                  field->width);

   } else {

     new_node = malloc(sizeof(Undo_node));

     ++hist->count;