57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
#include "everything.hpp"
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// Selection manipulation
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template <typename F, typename G>
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void Selection::apply_on_selection(position p, F func, G func2) {
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// Determine first and last selected position
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position start = p, end = pos;
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if(pos.r < p.r || (pos.r == p.r && pos.c < p.c))
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start = pos, end = p;
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// Clear previous selection
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content.clear();
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// Last line start
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if(start.r < end.r)
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func2(end.r, 0, end.c+1, file, &content);
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// All complete lines in between
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for(count_type r = end.r-1; r > start.r; --r)
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func(r, file, &content);
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// First line end
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string start_line = file->get_line(start.r);
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count_type size = ((start.r == end.r) ? end.c+1 : start_line.size()) - start.c;
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func2(start.r, start.c, size, file, &content);
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}
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// Removing selection
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void Selection::remove_selection(position p) {
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apply_on_selection(p,
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[](count_type r, Treap *file, Treap *sel){ file->remove(r); },
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[](count_type r, count_type start_c, count_type size, Treap *file, Treap *sel) { file->remove({r, start_c-file->get_tab_offset({r, start_c})}, size); }
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);
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}
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// Copying selection
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void Selection::copy_selection(position p) {
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apply_on_selection(p,
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[](count_type r, Treap *file, Treap *sel){ sel->insert(0, file->get_line(r, false)); },
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[](count_type r, count_type start_c, count_type size, Treap *file, Treap *sel) { sel->insert(0, file->get_line(r, false).substr(start_c - file->get_tab_offset({r, start_c}), size)); }
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);
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}
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// Pasting selection
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void Selection::paste_selection(position p) {
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if(content.size() == 0) return;
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// Insert last line inside of this
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file->insert(p, content.get_line(content.size()-1, false));
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if(content.size() == 1) return;
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// Insert first line in front and split
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file->split_line(p);
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file->insert(p, content.get_line(0, false));
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if(content.size() == 2) return;
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// Insert lines
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for(count_type i = content.size()-2; i > 0; --i)
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file->insert(p.r, content.get_line(i, false));
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}
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