fixed position calculation

Author: skywind3000

autoload/quickui/core.vim

@@ -381,6 +381,7 @@ let s:border_styles = {}
 let s:border_styles[1] = quickui#core#border_extract('+-+|-|+-+++')
 let s:border_styles[2] = quickui#core#border_extract('┌─┐│─│└─┘├┤')
 let s:border_styles[3] = quickui#core#border_extract('╔═╗║─║╚═╝╟╢')
+let s:border_styles[4] = quickui#core#border_extract('/-\|-|\-/++')
 
 let s:border_ascii = quickui#core#border_extract('+-+|-|+-+++')
 
@@ -464,9 +465,17 @@ function! quickui#core#around_cursor(width, height)
 			return [row, col]
 		endif
 	endif
-	let row = cursor_pos[0] + 1
-	let col = cursor_pos[1] + 1
-	return quickui#core#screen_fit(row, col, a:height, a:height)
+	if cursor_pos[0] + a:height + 2 < &line
+		let row = cursor_pos[0] + 1
+	else
+		let row = cursor_pos[0] - a:height
+	endif
+	if cursor_pos[1] + a:width + 2 < &columns
+		let col = cursor_pos[1] + 1
+	else
+		let col = cursor_pos[1] - a:width
+	endif
+	return quickui#core#screen_fit(row, col, a:width, a:height)
 endfunc
 
 

autoload/quickui/preview.vim

@@ -0,0 +1,132 @@
+"======================================================================
+"
+" preview.vim - 
+"
+" Created by skywind on 2020/01/11
+" Last Modified: 2020/01/11 11:30:20
+"
+"======================================================================
+
+" vim: set noet fenc=utf-8 ff=unix sts=4 sw=4 ts=4 :
+
+
+"----------------------------------------------------------------------
+" 
+"----------------------------------------------------------------------
+let s:private = {'winid': -1}
+
+
+"----------------------------------------------------------------------
+" position to a proper location
+"----------------------------------------------------------------------
+function! s:around_cursor(width, height)
+	let cursor_pos = quickui#core#cursor_pos()
+	let row = cursor_pos[0] - a:height 
+	let col = cursor_pos[1] + 1
+	if quickui#core#in_screen(row, col, a:width, a:height)
+		return [row, col]
+	endif
+	if col + a:width - 1 > &columns
+		let col = col - (1 + a:width)
+		if quickui#core#in_screen(row, col, a:width, a:height)
+			return [row, col]
+		endif
+	endif
+	if row < 1
+		let row = row + (1 + a:height)
+		if quickui#core#in_screen(row, col, a:width, a:height)
+			return [row, col]
+		endif
+	endif
+	if cursor_pos[0] - a:height - 2 < 1
+		let row = cursor_pos[0] + 1
+	else
+		let row = cursor_pos[0] - a:height 
+	endif
+	if cursor_pos[1] + a:width + 2 < &columns
+		let col = cursor_pos[1] + 1
+	else
+		let col = cursor_pos[1] - a:width
+	endif
+	return quickui#core#screen_fit(row, col, a:width, a:height)
+endfunc
+
+
+"----------------------------------------------------------------------
+" 
+"----------------------------------------------------------------------
+function! quickui#preview#display(filename, lnum, opts)
+	call quickui#preview#close()
+	if !filereadable(a:filename)
+		call quickui#utils#errmsg('E212: Can not open file: '. a:filename)
+		return -1
+	endif
+	let bid = bufadd(a:filename)
+	let winid = -1
+	let title = has_key(a:opts, 'title')? (' ' . a:opts.title .' ') : ''
+	let w = get(a:opts, 'w', -1)
+	let h = get(a:opts, 'h', -1)
+	let w = (w < 0)? 50 : w
+	let h = (h < 0)? 10 : h
+	let border = get(a:opts, 'border', g:quickui#style#border)
+	let p = s:around_cursor(w + (border? 2 : 0), h + (border? 2 : 0))
+	" echo p
+	if has('nvim') == 0
+		let winid = popup_create(bid, {'wrap':1, 'mapping':0, 'hidden':1})
+		let opts = {'maxwidth':w, 'maxheight':h, 'minwidth':w, 'minheight':h}
+		call popup_move(winid, opts)
+		let opts = {'close':'button', 'title':title}
+		let opts.border = border? [1,1,1,1,1,1,1,1,1] : repeat([0], 9)
+		let opts.resize = 0
+		let opts.highlight = 'QuickPreview'
+		let opts.borderchars = quickui#core#border_vim(border)
+		let opts.moved = 'any'
+		let opts.drag = 1
+		let opts.line = p[0]
+		let opts.col = p[1]
+		" let opts.fixed = 'true'
+		call popup_setoptions(winid, opts)
+		let s:private.winid = winid
+		call popup_show(winid)
+	else
+	endif
+	let cmdlist = ['setlocal signcolumn=no norelativenumber']
+	if get(a:opts, 'number', 1) == 0
+		let cmdlist += ['setlocal nonumber']
+	else
+		let cmdlist += ['setlocal number']
+	endif
+	if has_key(a:opts, 'index')
+		let index = a:opts.index
+		let cmdlist += ['let g:quickui#utils#__cursor_index = '.index]
+	endif
+	call quickui#core#win_execute(winid, cmdlist)
+	return winid
+endfunc
+
+
+"----------------------------------------------------------------------
+" 
+"----------------------------------------------------------------------
+function! quickui#preview#callback(winid, code)
+	if has('nvim') == 0
+		let s:private.winid = -1
+	endif
+endfunc
+
+
+"----------------------------------------------------------------------
+" 
+"----------------------------------------------------------------------
+function! quickui#preview#close()
+	if s:private.winid >= 0
+		if has('nvim') == 0
+			call popup_close(s:private.winid, 0)
+			let s:private.winid = -1
+		else
+		endif
+	endif
+endfunc
+
+
+

autoload/quickui/tags.vim

@@ -7,6 +7,7 @@
 "
 "======================================================================
 
+" vim: set noet fenc=utf-8 ff=unix sts=4 sw=4 ts=4 :
 
 "----------------------------------------------------------------------
 " wrapping of vim's taglist()

plugin/quickui.vim

@@ -97,5 +97,12 @@ call s:hilink('QuickKey', 'QuickDefaultKey')
 call s:hilink('QuickOff', 'QuickDefaultDisable')
 call s:hilink('QuickHelp', 'QuickDefaultHelp')
 
+if !hlexists('QuickPreview')
+	if &background == 'dark'
+		hi! QuickPreview ctermbg=237 guibg=#3c3836
+	else
+		hi! QuickPreview ctermbg=237 guibg=#3c3836
+	endif
+endif