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*scroll.txt* For Vim version 8.0. Last change: 2016 Nov 10 VIM REFERENCE MANUAL by Bram Moolenaar Scrolling *scrolling* These commands move the contents of the window. If the cursor position is moved off of the window, the cursor is moved onto the window (with 'scrolloff' screen lines around it). A page is the number of lines in the window minus two. The mnemonics for these commands may be a bit confusing. Remember that the commands refer to moving the window (the part of the buffer that you see) upwards or downwards in the buffer. When the window moves upwards in the buffer, the text in the window moves downwards on your screen. See section |03.7| of the user manual for an introduction. 1. Scrolling downwards |scroll-down| 2. Scrolling upwards |scroll-up| 3. Scrolling relative to cursor |scroll-cursor| 4. Scrolling horizontally |scroll-horizontal| 5. Scrolling synchronously |scroll-binding| 6. Scrolling with a mouse wheel |scroll-mouse-wheel| ============================================================================== 1. Scrolling downwards *scroll-down* The following commands move the edit window (the part of the buffer that you see) downwards (this means that more lines downwards in the text buffer can be seen): *CTRL-E* CTRL-E Scroll window [count] lines downwards in the buffer. Mnemonic: Extra lines. *CTRL-D* CTRL-D Scroll window Downwards in the buffer. The number of lines comes from the 'scroll' option (default: half a screen). If [count] given, first set 'scroll' option to [count]. The cursor is moved the same number of lines down in the file (if possible; when lines wrap and when hitting the end of the file there may be a difference). When the cursor is on the last line of the buffer nothing happens and a beep is produced. See also 'startofline' option. {difference from vi: Vim scrolls 'scroll' screen lines, instead of file lines; makes a difference when lines wrap} <S-Down> or *<S-Down>* *<kPageDown>* <PageDown> or *<PageDown>* *CTRL-F* CTRL-F Scroll window [count] pages Forwards (downwards) in the buffer. See also 'startofline' option. When there is only one window the 'window' option might be used. *z+* z+ Without [count]: Redraw with the line just below the window at the top of the window. Put the cursor in that line, at the first non-blank in the line. With [count]: just like "z<CR>". ============================================================================== 2. Scrolling upwards *scroll-up* The following commands move the edit window (the part of the buffer that you see) upwards (this means that more lines upwards in the text buffer can be seen): *CTRL-Y* CTRL-Y Scroll window [count] lines upwards in the buffer. Note: When using the MS-Windows key bindings CTRL-Y is remapped to redo. *CTRL-U* CTRL-U Scroll window Upwards in the buffer. The number of lines comes from the 'scroll' option (default: half a screen). If [count] given, first set the 'scroll' option to [count]. The cursor is moved the same number of lines up in the file (if possible; when lines wrap and when hitting the end of the file there may be a difference). When the cursor is on the first line of the buffer nothing happens and a beep is produced. See also 'startofline' option. {difference from vi: Vim scrolls 'scroll' screen lines, instead of file lines; makes a difference when lines wrap} <S-Up> or *<S-Up>* *<kPageUp>* <PageUp> or *<PageUp>* *CTRL-B* CTRL-B Scroll window [count] pages Backwards (upwards) in the buffer. See also 'startofline' option. When there is only one window the 'window' option might be used. *z^* z^ Without [count]: Redraw with the line just above the window at the bottom of the window. Put the cursor in that line, at the first non-blank in the line. With [count]: First scroll the text to put the [count] line at the bottom of the window, then redraw with the line which is now at the top of the window at the bottom of the window. Put the cursor in that line, at the first non-blank in the line. ============================================================================== 3. Scrolling relative to cursor *scroll-cursor* The following commands reposition the edit window (the part of the buffer that you see) while keeping the cursor on the same line. Note that the 'scrolloff' option may cause context lines to show above and below the cursor. *z<CR>* z<CR> Redraw, line [count] at top of window (default cursor line). Put cursor at first non-blank in the line. *zt* zt Like "z<CR>", but leave the cursor in the same column. {not in Vi} *zN<CR>* z{height}<CR> Redraw, make window {height} lines tall. This is useful to make the number of lines small when screen updating is very slow. Cannot make the height more than the physical screen height. *z.* z. Redraw, line [count] at center of window (default cursor line). Put cursor at first non-blank in the line. *zz* zz Like "z.", but leave the cursor in the same column. Careful: If caps-lock is on, this command becomes "ZZ": write buffer and exit! {not in Vi} *z-* z- Redraw, line [count] at bottom of window (default cursor line). Put cursor at first non-blank in the line. *zb* zb Like "z-", but leave the cursor in the same column. {not in Vi} ============================================================================== 4. Scrolling horizontally *scroll-horizontal* For the following four commands the cursor follows the screen. If the character that the cursor is on is moved off the screen, the cursor is moved to the closest character that is on the screen. The value of 'sidescroll' is not used. z<Right> or *zl* *z<Right>* zl Move the view on the text [count] characters to the right, thus scroll the text [count] characters to the left. This only works when 'wrap' is off. {not in Vi} z<Left> or *zh* *z<Left>* zh Move the view on the text [count] characters to the left, thus scroll the text [count] characters to the right. This only works when 'wrap' is off. {not in Vi} *zL* zL Move the view on the text half a screenwidth to the right, thus scroll the text half a screenwidth to the left. This only works when 'wrap' is off. {not in Vi} *zH* zH Move the view on the text half a screenwidth to the left, thus scroll the text half a screenwidth to the right. This only works when 'wrap' is off. {not in Vi} For the following two commands the cursor is not moved in the text, only the text scrolls on the screen. *zs* zs Scroll the text horizontally to position the cursor at the start (left side) of the screen. This only works when 'wrap' is off. {not in Vi} *ze* ze Scroll the text horizontally to position the cursor at the end (right side) of the screen. This only works when 'wrap' is off. {not in Vi} ============================================================================== 5. Scrolling synchronously *scroll-binding* Occasionally, it is desirable to bind two or more windows together such that when one window is scrolled, the other windows are also scrolled. In Vim, windows can be given this behavior by setting the (window-specific) 'scrollbind' option. When a window that has 'scrollbind' set is scrolled, all other 'scrollbind' windows are scrolled the same amount, if possible. The behavior of 'scrollbind' can be modified by the 'scrollopt' option. When using the scrollbars, the binding only happens when scrolling the window with focus (where the cursor is). You can use this to avoid scroll-binding for a moment without resetting options. When a window also has the 'diff' option set, the scroll-binding uses the differences between the two buffers to synchronize the position precisely. Otherwise the following method is used. *scrollbind-relative* Each 'scrollbind' window keeps track of its "relative offset," which can be thought of as the difference between the current window's vertical scroll position and the other window's vertical scroll position. When one of the 'scrollbind' windows is asked to vertically scroll past the beginning or end limit of its text, the window no longer scrolls, but remembers how far past the limit it wishes to be. The window keeps this information so that it can maintain the same relative offset, regardless of its being asked to scroll past its buffer's limits. However, if a 'scrollbind' window that has a relative offset that is past its buffer's limits is given the cursor focus, the other 'scrollbind' windows must jump to a location where the current window's relative offset is valid. This behavior can be changed by clearing the "jump" flag from the 'scrollopt' option. *syncbind* *:syncbind* *:sync* :syncbind Force all 'scrollbind' windows to have the same relative offset. I.e., when any of the 'scrollbind' windows is scrolled to the top of its buffer, all of the 'scrollbind' windows will also be at the top of their buffers. *scrollbind-quickadj* The 'scrollbind' flag is meaningful when using keyboard commands to vertically scroll a window, and also meaningful when using the vertical scrollbar of the window which has the cursor focus. However, when using the vertical scrollbar of a window which doesn't have the cursor focus, 'scrollbind' is ignored. This allows quick adjustment of the relative offset of 'scrollbind' windows. ============================================================================== 6. Scrolling with a mouse wheel *scroll-mouse-wheel* When your mouse has a scroll wheel, it should work with Vim in the GUI. How it works depends on your system. It might also work in an xterm |xterm-mouse-wheel|. By default only vertical scroll wheels are supported, but some GUIs also support horizontal scroll wheels. For the Win32 GUI the scroll action is hard coded. It works just like dragging the scrollbar of the current window. How many lines are scrolled depends on your mouse driver. If the scroll action causes input focus problems, see |intellimouse-wheel-problems|. For the X11 GUIs (Motif, Athena and GTK) scrolling the wheel generates key presses <ScrollWheelUp>, <ScrollWheelDown>, <ScrollWheelLeft> and <ScrollWheelRight>. For example, if you push the scroll wheel upwards a <ScrollWheelUp> key press is generated causing the window to scroll upwards (while the text is actually moving downwards). The default action for these keys are: <ScrollWheelUp> scroll three lines up *<ScrollWheelUp>* <S-ScrollWheelUp> scroll one page up *<S-ScrollWheelUp>* <C-ScrollWheelUp> scroll one page up *<C-ScrollWheelUp>* <ScrollWheelDown> scroll three lines down *<ScrollWheelDown>* <S-ScrollWheelDown> scroll one page down *<S-ScrollWheelDown>* <C-ScrollWheelDown> scroll one page down *<C-ScrollWheelDown>* <ScrollWheelLeft> scroll six columns left *<ScrollWheelLeft>* <S-ScrollWheelLeft> scroll one page left *<S-ScrollWheelLeft>* <C-ScrollWheelLeft> scroll one page left *<C-ScrollWheelLeft>* <ScrollWheelRight> scroll six columns right *<ScrollWheelRight>* <S-ScrollWheelRight> scroll one page right *<S-ScrollWheelRight>* <C-ScrollWheelRight> scroll one page right *<C-ScrollWheelRight>* This should work in all modes, except when editing the command line. Note that horizontal scrolling only works if 'nowrap' is set. Also, unless the "h" flag in 'guioptions' is set, the cursor moves to the longest visible line if the cursor line is about to be scrolled off the screen (similarly to how the horizontal scrollbar works). You can modify the default behavior by mapping the keys. For example, to make the scroll wheel move one line or half a page in Normal mode: > :map <ScrollWheelUp> <C-Y> :map <S-ScrollWheelUp> <C-U> :map <ScrollWheelDown> <C-E> :map <S-ScrollWheelDown> <C-D> You can also use Alt and Ctrl modifiers. This only works when Vim gets the scroll wheel events, of course. You can check if this works with the "xev" program. When using XFree86, the /etc/XF86Config file should have the correct entry for your mouse. For FreeBSD, this entry works for a Logitech scrollmouse: > Protocol "MouseMan" Device "/dev/psm0" ZAxisMapping 4 5 See the XFree86 documentation for information. *<MouseDown>* *<MouseUp>* The keys <MouseDown> and <MouseUp> have been deprecated. Use <ScrollWheelUp> instead of <MouseDown> and use <ScrollWheelDown> instead of <MouseUp>. *xterm-mouse-wheel* To use the mouse wheel in a new xterm you only have to make the scroll wheel work in your Xserver, as mentioned above. To use the mouse wheel in an older xterm you must do this: 1. Make it work in your Xserver, as mentioned above. 2. Add translations for the xterm, so that the xterm will pass a scroll event to Vim as an escape sequence. 3. Add mappings in Vim, to interpret the escape sequences as <ScrollWheelDown> or <ScrollWheelUp> keys. You can do the translations by adding this to your ~.Xdefaults file (or other file where your X resources are kept): > XTerm*VT100.Translations: #override \n\ s<Btn4Down>: string("0x9b") string("[64~") \n\ s<Btn5Down>: string("0x9b") string("[65~") \n\ <Btn4Down>: string("0x9b") string("[62~") \n\ <Btn5Down>: string("0x9b") string("[63~") \n\ <Btn4Up>: \n\ <Btn5Up>: Add these mappings to your vimrc file: > :map <M-Esc>[62~ <ScrollWheelUp> :map! <M-Esc>[62~ <ScrollWheelUp> :map <M-Esc>[63~ <ScrollWheelDown> :map! <M-Esc>[63~ <ScrollWheelDown> :map <M-Esc>[64~ <S-ScrollWheelUp> :map! <M-Esc>[64~ <S-ScrollWheelUp> :map <M-Esc>[65~ <S-ScrollWheelDown> :map! <M-Esc>[65~ <S-ScrollWheelDown> < vim:tw=78:ts=8:ft=help:norl:
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