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Implement drag scrolling in C

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Kovid Goyal
2017-09-14 15:06:23 +05:30
parent a27004da35
commit 4feaf13556
7 changed files with 88 additions and 35 deletions
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4
kitty/screen.h
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@@ -6,6 +6,8 @@
#pragma once
typedef enum ScrollTypes { SCROLL_LINE = -999999, SCROLL_PAGE, SCROLL_FULL } ScrollType;
void screen_align(Screen*);
void screen_restore_cursor(Screen *);
void screen_save_cursor(Screen *);
@@ -68,6 +70,7 @@ bool screen_selection_range_for_line(Screen *self, index_type y, index_type *sta
bool screen_selection_range_for_word(Screen *self, index_type x, index_type y, index_type *start, index_type *end);
void screen_start_selection(Screen *self, index_type x, index_type y);
void screen_update_selection(Screen *self, index_type x, index_type y, bool ended);
bool screen_history_scroll(Screen *self, int amt, bool upwards);
Line* screen_visual_line(Screen *self, index_type y);
unsigned long screen_current_char_width(Screen *self);
#define DECLARE_CH_SCREEN_HANDLER(name) void screen_##name(Screen *screen);
@@ -76,4 +79,3 @@ DECLARE_CH_SCREEN_HANDLER(backspace)
DECLARE_CH_SCREEN_HANDLER(tab)
DECLARE_CH_SCREEN_HANDLER(linefeed)
DECLARE_CH_SCREEN_HANDLER(carriage_return)