diff options
Diffstat (limited to '.config/mvi/scripts/image-positioning.lua')
| -rw-r--r-- | .config/mvi/scripts/image-positioning.lua | 341 |
1 files changed, 0 insertions, 341 deletions
diff --git a/.config/mvi/scripts/image-positioning.lua b/.config/mvi/scripts/image-positioning.lua deleted file mode 100644 index 08fa1e7..0000000 --- a/.config/mvi/scripts/image-positioning.lua +++ /dev/null @@ -1,341 +0,0 @@ -local opts = { - pan_follows_cursor_margin = 50, - pan_follows_cursor_move_if_full_view = false, - - drag_to_pan_margin = 50, - drag_to_pan_move_if_full_view = false, -} -(require 'mp.options').read_options(opts) - -function clamp(value, low, high) - if value <= low then - return low - elseif value >= high then - return high - else - return value - end -end - -local msg = require 'mp.msg' -local assdraw = require 'mp.assdraw' - -function get_video_dimensions() - -- this function is very much ripped from video/out/aspect.c in mpv's source - local video_params = mp.get_property_native("video-out-params") - if not video_params then - _video_dimensions = nil - return nil - end - _video_dimensions = { - top_left = { 0, 0 }, - bottom_right = { 0, 0 }, - size = { 0, 0 }, - ratios = { 0, 0 }, -- by how much the original video got scaled - } - local keep_aspect = mp.get_property_bool("keepaspect") - local w = video_params["w"] - local h = video_params["h"] - local dw = video_params["dw"] - local dh = video_params["dh"] - if mp.get_property_number("video-rotate") % 180 == 90 then - w, h = h,w - dw, dh = dh, dw - end - local window_w, window_h = mp.get_osd_size() - - if keep_aspect then - local unscaled = mp.get_property_native("video-unscaled") - local panscan = mp.get_property_number("panscan") - - local fwidth = window_w - local fheight = math.floor(window_w / dw * dh) - if fheight > window_h or fheight < h then - local tmpw = math.floor(window_h / dh * dw) - if tmpw <= window_w then - fheight = window_h - fwidth = tmpw - end - end - local vo_panscan_area = window_h - fheight - local f_w = fwidth / fheight - local f_h = 1 - if vo_panscan_area == 0 then - vo_panscan_area = window_h - fwidth - f_w = 1 - f_h = fheight / fwidth - end - if unscaled or unscaled == "downscale-big" then - vo_panscan_area = 0 - if unscaled or (dw <= window_w and dh <= window_h) then - fwidth = dw - fheight = dh - end - end - - local scaled_width = fwidth + math.floor(vo_panscan_area * panscan * f_w) - local scaled_height = fheight + math.floor(vo_panscan_area * panscan * f_h) - - local split_scaling = function (dst_size, scaled_src_size, zoom, align, pan) - scaled_src_size = math.floor(scaled_src_size * 2 ^ zoom) - align = (align + 1) / 2 - local dst_start = math.floor((dst_size - scaled_src_size) * align + pan * scaled_src_size) - if dst_start < 0 then - --account for C int cast truncating as opposed to flooring - dst_start = dst_start + 1 - end - local dst_end = dst_start + scaled_src_size; - if dst_start >= dst_end then - dst_start = 0 - dst_end = 1 - end - return dst_start, dst_end - end - local zoom = mp.get_property_number("video-zoom") - - local align_x = mp.get_property_number("video-align-x") - local pan_x = mp.get_property_number("video-pan-x") - _video_dimensions.top_left[1], _video_dimensions.bottom_right[1] = split_scaling(window_w, scaled_width, zoom, align_x, pan_x) - - local align_y = mp.get_property_number("video-align-y") - local pan_y = mp.get_property_number("video-pan-y") - _video_dimensions.top_left[2], _video_dimensions.bottom_right[2] = split_scaling(window_h, scaled_height, zoom, align_y, pan_y) - else - _video_dimensions.top_left[1] = 0 - _video_dimensions.bottom_right[1] = window_w - _video_dimensions.top_left[2] = 0 - _video_dimensions.bottom_right[2] = window_h - end - _video_dimensions.size[1] = _video_dimensions.bottom_right[1] - _video_dimensions.top_left[1] - _video_dimensions.size[2] = _video_dimensions.bottom_right[2] - _video_dimensions.top_left[2] - _video_dimensions.ratios[1] = _video_dimensions.size[1] / w - _video_dimensions.ratios[2] = _video_dimensions.size[2] / h - return _video_dimensions -end - -local cleanup = nil -- function set up by drag-to-pan/pan-follows cursor and must be called to clean lingering state - -function drag_to_pan_handler(table) - if cleanup then - cleanup() - cleanup = nil - end - if table["event"] == "down" then - local video_dimensions = get_video_dimensions() - if not video_dimensions then return end - local window_w, window_h = mp.get_osd_size() - local mouse_pos_origin, video_pan_origin = {}, {} - local moved = false - mouse_pos_origin[1], mouse_pos_origin[2] = mp.get_mouse_pos() - video_pan_origin[1] = mp.get_property_number("video-pan-x") - video_pan_origin[2] = mp.get_property_number("video-pan-y") - local margin = opts.drag_to_pan_margin - local move_up = true - local move_lateral = true - if not opts.drag_to_pan_move_if_full_view then - if video_dimensions.size[1] <= window_w then - move_lateral = false - end - if video_dimensions.size[2] <= window_h then - move_up = false - end - end - if not move_up and not move_lateral then return end - local idle = function() - if moved then - local mX, mY = mp.get_mouse_pos() - local pX = video_pan_origin[1] - local pY = video_pan_origin[2] - if move_lateral then - pX = video_pan_origin[1] + (mX - mouse_pos_origin[1]) / video_dimensions.size[1] - if video_dimensions.size[1] + 2 * margin > window_w then - pX = clamp(pX, - (-margin + window_w / 2) / video_dimensions.size[1] - 0.5, - (margin - window_w / 2) / video_dimensions.size[1] + 0.5) - else - pX = clamp(pX, - (margin - window_w / 2) / video_dimensions.size[1] + 0.5, - (-margin + window_w / 2) / video_dimensions.size[1] - 0.5) - end - end - if move_up then - pY = video_pan_origin[2] + (mY - mouse_pos_origin[2]) / video_dimensions.size[2] - if video_dimensions.size[2] + 2 * margin > window_h then - pY = clamp(pY, - (-margin + window_h / 2) / video_dimensions.size[2] - 0.5, - (margin - window_h / 2) / video_dimensions.size[2] + 0.5) - else - pY = clamp(pY, - (margin - window_h / 2) / video_dimensions.size[2] + 0.5, - (-margin + window_h / 2) / video_dimensions.size[2] - 0.5) - end - end - mp.command("no-osd set video-pan-x " .. clamp(pX, -3, 3) .. "; no-osd set video-pan-y " .. clamp(pY, -3, 3)) - moved = false - end - end - mp.register_idle(idle) - mp.add_forced_key_binding("mouse_move", "image-viewer-mouse-move", function() moved = true end) - cleanup = function() - mp.remove_key_binding("image-viewer-mouse-move") - mp.unregister_idle(idle) - end - end -end - -function pan_follows_cursor_handler(table) - if cleanup then - cleanup() - cleanup = nil - end - if table["event"] == "down" then - local video_dimensions = get_video_dimensions() - if not video_dimensions then return end - local window_w, window_h = mp.get_osd_size() - local moved = true - local idle = function() - if moved then - local mX, mY = mp.get_mouse_pos() - local x = math.min(1, math.max(- 2 * mX / window_w + 1, -1)) - local y = math.min(1, math.max(- 2 * mY / window_h + 1, -1)) - local command = "" - local margin, move_full = opts.pan_follows_cursor_margin, opts.pan_follows_cursor_move_if_full_view - if (not move_full and window_w < video_dimensions.size[1]) then - command = command .. "no-osd set video-pan-x " .. clamp(x * (video_dimensions.size[1] - window_w + 2 * margin) / (2 * video_dimensions.size[1]), -3, 3) .. ";" - elseif mp.get_property_number("video-pan-x") ~= 0 then - command = command .. "no-osd set video-pan-x " .. "0;" - end - if (not move_full and window_h < video_dimensions.size[2]) then - command = command .. "no-osd set video-pan-y " .. clamp(y * (video_dimensions.size[2] - window_h + 2 * margin) / (2 * video_dimensions.size[2]), -3, 3) .. ";" - elseif mp.get_property_number("video-pan-y") ~= 0 then - command = command .. "no-osd set video-pan-y " .. "0;" - end - if command ~= "" then - mp.command(command) - end - moved = false - end - end - mp.register_idle(idle) - mp.add_forced_key_binding("mouse_move", "image-viewer-mouse-move", function() moved = true end) - cleanup = function() - mp.remove_key_binding("image-viewer-mouse-move") - mp.unregister_idle(idle) - end - end -end - -function cursor_centric_zoom_handler(amt) - local zoom_inc = tonumber(amt) - if not zoom_inc or zoom_inc == 0 then return end - local video_dimensions = get_video_dimensions() - if not video_dimensions then return end - local mouse_pos_origin, video_pan_origin = {}, {} - mouse_pos_origin[1], mouse_pos_origin[2] = mp.get_mouse_pos() - video_pan_origin[1] = mp.get_property("video-pan-x") - video_pan_origin[2] = mp.get_property("video-pan-y") - local zoom_origin = mp.get_property("video-zoom") - -- how far the cursor is form the middle of the video (in percentage) - local rx = (video_dimensions.top_left[1] + video_dimensions.size[1] / 2 - mouse_pos_origin[1]) / (video_dimensions.size[1] / 2) - local ry = (video_dimensions.top_left[2] + video_dimensions.size[2] / 2 - mouse_pos_origin[2]) / (video_dimensions.size[2] / 2) - - -- the size in pixels of the (in|de)crement - local diffHeight = (2 ^ zoom_inc - 1) * video_dimensions.size[2] - local diffWidth = (2 ^ zoom_inc - 1) * video_dimensions.size[1] - local newPanX = (video_pan_origin[1] * video_dimensions.size[1] + rx * diffWidth / 2) / (video_dimensions.size[1] + diffWidth) - local newPanY = (video_pan_origin[2] * video_dimensions.size[2] + ry * diffHeight / 2) / (video_dimensions.size[2] + diffHeight) - mp.command("no-osd set video-zoom " .. zoom_origin + zoom_inc .. "; no-osd set video-pan-x " .. clamp(newPanX, -3, 3) .. "; no-osd set video-pan-y " .. clamp(newPanY, -3, 3)) -end - -function align_border(x, y) - local video_dimensions = get_video_dimensions() - if not video_dimensions then return end - local window_w, window_h = mp.get_osd_size() - local x, y = tonumber(x), tonumber(y) - local command = "" - if x then - command = command .. "no-osd set video-pan-x " .. clamp(x * (video_dimensions.size[1] - window_w) / (2 * video_dimensions.size[1]), -3, 3) .. ";" - end - if y then - command = command .. "no-osd set video-pan-y " .. clamp(y * (video_dimensions.size[2] - window_h) / (2 * video_dimensions.size[2]), -3, 3) .. ";" - end - if command ~= "" then - mp.command(command) - end -end - -function pan_image(axis, amount, zoom_invariant, image_constrained) - amount = tonumber(amount) - if not amount or amount == 0 or axis ~= "x" and axis ~= "y" then return end - if zoom_invariant == "yes" then - amount = amount / 2 ^ mp.get_property_number("video-zoom") - end - local prop = "video-pan-" .. axis - local old_pan = mp.get_property_number(prop) - axis = (axis == "x") and 1 or 2 - if image_constrained == "yes" then - local video_dimensions = get_video_dimensions() - if not video_dimensions then return end - local window = {} - window[1], window[2] = mp.get_osd_size() - local pixels_moved = amount * video_dimensions.size[axis] - -- should somehow refactor this - if pixels_moved > 0 then - if window[axis] > video_dimensions.size[axis] then - if video_dimensions.bottom_right[axis] >= window[axis] then return end - if video_dimensions.bottom_right[axis] + pixels_moved > window[axis] then - amount = (window[axis] - video_dimensions.bottom_right[axis]) / video_dimensions.size[axis] - end - else - if video_dimensions.top_left[axis] >= 0 then return end - if video_dimensions.top_left[axis] + pixels_moved > 0 then - amount = (0 - video_dimensions.top_left[axis]) / video_dimensions.size[axis] - end - end - else - if window[axis] > video_dimensions.size[axis] then - if video_dimensions.top_left[axis] <= 0 then return end - if video_dimensions.top_left[axis] + pixels_moved < 0 then - amount = (0 - video_dimensions.top_left[axis]) / video_dimensions.size[axis] - end - else - if video_dimensions.bottom_right[axis] <= window[axis] then return end - if video_dimensions.bottom_right[axis] + pixels_moved < window[axis] then - amount = (window[axis] - video_dimensions.bottom_right[axis]) / video_dimensions.size[axis] - end - end - end - end - mp.set_property_number(prop, old_pan + amount) -end - -function rotate_video(amt) - local rot = mp.get_property_number("video-rotate") - rot = (rot + amt) % 360 - mp.set_property_number("video-rotate", rot) -end - -function reset_pan_if_visible() - local video_dimensions = get_video_dimensions() - if not video_dimensions then return end - local window_w, window_h = mp.get_osd_size() - local command = "" - if (window_w >= video_dimensions.size[1]) then - command = command .. "no-osd set video-pan-x 0" .. ";" - end - if (window_h >= video_dimensions.size[2]) then - command = command .. "no-osd set video-pan-y 0" .. ";" - end - if command ~= "" then - mp.command(command) - end -end - -mp.add_key_binding(nil, "drag-to-pan", drag_to_pan_handler, {complex = true}) -mp.add_key_binding(nil, "pan-follows-cursor", pan_follows_cursor_handler, {complex = true}) -mp.add_key_binding(nil, "cursor-centric-zoom", cursor_centric_zoom_handler) -mp.add_key_binding(nil, "align-border", align_border) -mp.add_key_binding(nil, "pan-image", pan_image) -mp.add_key_binding(nil, "rotate-video", rotate_video) -mp.add_key_binding(nil, "reset-pan-if-visible", reset_pan_if_visible) -mp.add_key_binding(nil, "force-print-filename", force_print_filename) |