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patch 8.1.1449: popup text truncated at end of screen

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Problem:    Popup text truncated at end of screen.
Solution:   Move popup left if needed.  Add the "fixed" property to disable
            that. (Ben Jackson , closes #4466)
This commit is contained in:
Bram Moolenaar
2019-06-02 14:49:56 +02:00
parent 988c43310a
commit 042fb4b449
5 changed files with 306 additions and 71 deletions
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145
runtime/doc/popup.txt
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@@ -65,8 +65,10 @@ The width of the window is normally equal to the longest line in the buffer.
It can be limited with the "maxwidth" property. You can use spaces to
increase the width or the "minwidth" property.
By default the 'wrap' option is set, so that no text disappears. However, if
there is not enough space, some text may be invisible.
By default the 'wrap' option is set, so that no text disappears. Otherwise,
if there is not enough space then the window is shifted left in order to
display more text. This can be disabled with the "fixed" property. Also
disabled when right-aligned.
Vim tries to show the popup in the location you specify. In some cases, e.g.
when the popup would go outside of the Vim window, it will show it somewhere
@@ -78,8 +80,6 @@ window it will be placed below the cursor position.
TODO:
Example how to use syntax highlighting of a code snippet.
Scrolling: When the screen scrolls up for output of an Ex command, what
happens with popups?
1. Stay where they are. Problem: listed text may go behind and can't be read.
@@ -93,12 +93,12 @@ IMPLEMENTATION:
- Fix positioning with border and padding.
- Why does 'nrformats' leak from the popup window buffer???
- Make redrawing more efficient and avoid flicker.
Store popup info in a mask, use the mask in screen_line()
Keep mask until next update_screen(), find differences and redraw affected
windows/lines
First draw popups, creating a mask, use the mask in screen_line() when
drawing other windows and stuff. Mask contains zindex of popups.
Keep mask until next update_screen(), use when drawing status lines.
Remove update_popup() calls after draw_tabline()/updating statusline
Fix redrawing problem with completion.
Fix redrawing problem when scrolling non-current window
Fix redrawing the statusline on top of a popup
- Disable commands, feedkeys(), CTRL-W, etc. in a popup window.
Use NOT_IN_POPUP_WINDOW for more commands.
- Invoke filter with character before mapping?
@@ -327,81 +327,100 @@ optionally text properties. It is in one of three forms:
|popup-props|.
The second argument of |popup_create()| is a dictionary with options:
line screen line where to position the popup; can use a
line Screen line where to position the popup. Can use a
number or "cursor", "cursor+1" or "cursor-1" to use
the line of the cursor and add or subtract a number of
lines; if omitted the popup is vertically centered,
otherwise "pos" is used.
col screen column where to position the popup; can use a
lines. If omitted the popup is vertically centered.
The first line is 1.
col Screen column where to position the popup. Can use a
number or "cursor" to use the column of the cursor,
"cursor+99" and "cursor-99" to add or subtract a
number of columns; if omitted the popup is
horizontally centered, otherwise "pos" is used
"cursor+9" or "cursor-9" to add or subtract a number
of columns. If omitted the popup is horizontally
centered. The first column is 1.
pos "topleft", "topright", "botleft" or "botright":
defines what corner of the popup "line" and "col" are
used for. When not set "topleft" is used.
Alternatively "center" can be used to position the
popup in the center of the Vim window, in which case
"line" and "col" are ignored.
flip when TRUE (the default) and the position is relative
fixed When FALSE (the default), and:
- "pos" is "botleft" or "topleft", and
- "wrap" is off, and
- the popup would be truncated at the right edge of
the screen, then
the popup is moved to the left so as to fit the
contents on the screen. Set to TRUE to disable this.
flip When TRUE (the default) and the position is relative
to the cursor, flip to below or above the cursor to
avoid overlap with the |popupmenu-completion| or
another popup with a higher "zindex"
another popup with a higher "zindex".
{not implemented yet}
maxheight maximum height
minheight minimum height
maxwidth maximum width
minwidth minimum width
hidden when TRUE the popup exists but is not displayed; use
maxheight Maximum height of the contents, excluding border and
padding.
minheight Minimum height of the contents, excluding border and
padding.
maxwidth Maximum width of the contents, excluding border and
padding.
minwidth Minimum width of the contents, excluding border and
padding.
hidden When TRUE the popup exists but is not displayed; use
`popup_show()` to unhide it.
{not implemented yet}
tab when -1: display the popup on all tabs; when 0 (the
default): display the popup on the current tab;
otherwise the number of the tab page the popup is
displayed on; when invalid the current tab is used
tab When -1: display the popup on all tabs.
When 0 (the default): display the popup on the current
tab.
Otherwise the number of the tab page the popup is
displayed on; when invalid the current tab is used.
{only -1 and 0 are implemented}
title text to be displayed above the first item in the
popup, on top of any border
title Text to be displayed above the first item in the
popup, on top of any border. If there is no top
border on line of padding is added to put the title on.
{not implemented yet}
wrap TRUE to make the lines wrap (default TRUE)
highlight highlight group name to use for the text, stored in
the 'wincolor' option
padding list with numbers, defining the padding
above/right/below/left of the popup (similar to CSS);
an empty list uses a padding of 1 all around; the
padding goes around the text, inside any border;
padding uses the 'wincolor' highlight; Example: [1, 2,
1, 3] has 1 line of padding above, 2 columns on the
right, 1 line below and 3 columns on the left
border list with numbers, defining the border thickness
above/right/below/left of the popup (similar to CSS);
only values of zero and non-zero are recognized;
an empty list uses a border all around
borderhighlight list of highlight group names to use for the border;
when one entry it is used for all borders, otherwise
the highlight for the top/right/bottom/left border
borderchars list with characters, defining the character to use
for the top/right/bottom/left border; optionally
wrap TRUE to make the lines wrap (default TRUE).
highlight Highlight group name to use for the text, stored in
the 'wincolor' option.
padding List with numbers, defining the padding
above/right/below/left of the popup (similar to CSS).
An empty list uses a padding of 1 all around. The
padding goes around the text, inside any border.
Padding uses the 'wincolor' highlight.
Example: [1, 2, 1, 3] has 1 line of padding above, 2
columns on the right, 1 line below and 3 columns on
the left.
border List with numbers, defining the border thickness
above/right/below/left of the popup (similar to CSS).
Only values of zero and non-zero are recognized.
An empty list uses a border all around.
borderhighlight List of highlight group names to use for the border.
When one entry it is used for all borders, otherwise
the highlight for the top/right/bottom/left border.
Example: ['TopColor', 'RightColor', 'BottomColor,
'LeftColor']
borderchars List with characters, defining the character to use
for the top/right/bottom/left border. Optionally
followed by the character to use for the
topleft/topright/botright/botleft corner; when the
list has one character it is used for all; when
the list has two characters the first is used for the
border lines, the second for the corners; by default
a double line is used all around when 'encoding' is
"utf-8", otherwise ASCII characters are used.
zindex priority for the popup, default 50
time time in milliseconds after which the popup will close;
when omitted |popup_close()| must be used.
topleft/topright/botright/botleft corner.
Example: ['-', '|', '-', '|', '┌', '┐', '┘', '└']
When the list has one character it is used for all.
When the list has two characters the first is used for
the border lines, the second for the corners.
By default a double line is used all around when
'encoding' is "utf-8", otherwise ASCII characters are
used.
zindex Priority for the popup, default 50.
time Time in milliseconds after which the popup will close.
When omitted |popup_close()| must be used.
moved "cell": close the popup if the cursor moved at least
one screen cell; "word" allows for moving within
|<cword>|, "WORD" allows for moving within |<cWORD>|,
one screen cell.
"word" allows for moving the cursor within |<cword>|
"WORD" allows for moving the cursor within |<cWORD>|
a list with two numbers specifies the start and end
column
column outside of which the popup will close
{not implemented yet}
filter a callback that can filter typed characters, see
|popup-filter|
callback a callback to be used when the popup closes, e.g. when
using |popup_filter_menu()|, see |popup-callback|.
filter A callback that can filter typed characters, see
|popup-filter|.
callback A callback that is called when the popup closes, e.g.
when using |popup_filter_menu()|, see |popup-callback|.
Depending on the "zindex" the popup goes under or above other popups. The
completion menu (|popup-menu|) has zindex 100. For messages that occur for a