src/selection.h
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|---|---|---|---|
| 1 | #ifndef SELECTION_H | ||
| 2 | #define SELECTION_H | ||
| 3 | |||
| 4 | #include <stdbool.h> | ||
| 5 | #include <stddef.h> | ||
| 6 | #include "block-iter.h" | ||
| 7 | #include "buffer.h" | ||
| 8 | #include "command/args.h" | ||
| 9 | #include "command/run.h" | ||
| 10 | #include "util/debug.h" | ||
| 11 | #include "util/macros.h" | ||
| 12 | #include "util/string-view.h" | ||
| 13 | #include "view.h" | ||
| 14 | |||
| 15 | typedef struct { | ||
| 16 | BlockIter si; | ||
| 17 | size_t so; | ||
| 18 | size_t eo; | ||
| 19 | bool swapped; | ||
| 20 | } SelectionInfo; | ||
| 21 | |||
| 22 | void view_do_set_selection_type(View *view, SelectionType sel) NOINLINE; | ||
| 23 | |||
| 24 | 136 | static inline void view_set_selection_type(View *view, SelectionType sel) | |
| 25 | { | ||
| 26 |
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136 | if (likely(sel == view->selection)) { |
| 27 | // If `sel` is SELECT_NONE here, it's always equal to select_mode | ||
| 28 | 120 | BUG_ON(!sel && view->select_mode); | |
| 29 | return; | ||
| 30 | } | ||
| 31 | |||
| 32 | 16 | view_do_set_selection_type(view, sel); | |
| 33 | } | ||
| 34 | |||
| 35 | 133 | static inline SelectionType handle_selection_flags(View *view, const CommandArgs *a) | |
| 36 | { | ||
| 37 | 133 | SelectionType sel = SELECT_NONE; | |
| 38 |
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133 | switch (cmdargs_pick_winning_flag(a, "cl")) { |
| 39 | 10 | case 'c': sel = SELECT_CHARS; break; | |
| 40 | 15 | case 'l': sel = SELECT_LINES; break; | |
| 41 | } | ||
| 42 | |||
| 43 | 133 | view_set_selection_type(view, MAX(sel, view->select_mode)); | |
| 44 | 133 | return sel; | |
| 45 | } | ||
| 46 | |||
| 47 | 149 | static inline bool unselect(View *view) | |
| 48 | { | ||
| 49 |
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149 | if (view->selection) { |
| 50 | 13 | view->selection = SELECT_NONE; | |
| 51 | 13 | view->select_mode = SELECT_NONE; | |
| 52 | 13 | mark_all_lines_changed(view->buffer); | |
| 53 | } | ||
| 54 | 149 | return true; // To allow tail-calling from command handlers | |
| 55 | } | ||
| 56 | |||
| 57 | SelectionInfo init_selection(const View *view) NONNULL_ARGS WARN_UNUSED_RESULT; | ||
| 58 | size_t prepare_selection(View *view) NONNULL_ARGS WARN_UNUSED_RESULT; | ||
| 59 | size_t get_nr_selected_lines(const SelectionInfo *info) NONNULL_ARGS WARN_UNUSED_RESULT; | ||
| 60 | size_t get_nr_selected_chars(const SelectionInfo *info) NONNULL_ARGS WARN_UNUSED_RESULT; | ||
| 61 | |||
| 62 | void select_block(View *view) NONNULL_ARGS; | ||
| 63 | bool line_has_opening_brace(StringView line) WARN_UNUSED_RESULT; | ||
| 64 | bool line_has_closing_brace(StringView line) WARN_UNUSED_RESULT; | ||
| 65 | |||
| 66 | #endif | ||
| 67 |