211 lines
7.8 KiB
Lua
211 lines
7.8 KiB
Lua
package.path = package.path..";../?.lua"
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local dirtools = require("tools.dirtools")
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local base_path = dirtools.get_app_path("sokol%-luajit")
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package.cpath = package.cpath..";"..base_path.."bin/win64/?.dll"
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package.path = package.path..";"..base_path.."ffi/sokol/?.lua"
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package.path = package.path..";"..base_path.."?.lua"
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--_G.SOKOL_DLL = "sokol_debug_dll"
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local sapp = require("sokol_app")
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sg = require("sokol_nuklear")
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local nk = sg
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local slib = require("sokol_libs") -- Warn - always after gfx!!
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local hmm = require("hmm")
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local hutils = require("hmm_utils")
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local stb = require("stb")
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local ffi = require("ffi")
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-- returns struct nk_image
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local function icon_load(filename)
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local x = ffi.new("int[1]", {0})
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local y = ffi.new("int[1]", {0})
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local n = ffi.new("int[1]", {4})
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local data = stb.stbi_load(filename, x, y, nil, 4)
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if (data == nil) then error("[STB]: failed to load image: "..filename); end
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print("Image Loaded: "..filename.." Width: "..x[0].." Height: "..y[0].." Channels: "..n[0])
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local pixformat = sg.SG_PIXELFORMAT_RGBA8
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local sg_img_desc = ffi.new("sg_image_desc[1]")
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sg_img_desc[0].width = x[0]
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sg_img_desc[0].height = y[0]
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sg_img_desc[0].pixel_format = pixformat
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sg_img_desc[0].sample_count = 1
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sg_img_desc[0].data.subimage[0][0].ptr = data
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sg_img_desc[0].data.subimage[0][0].size = x[0] * y[0] * n[0]
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local new_img = sg.sg_make_image(sg_img_desc)
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-- // create a sokol-nuklear image object which associates an sg_image with an sg_sampler
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local img_desc = ffi.new("snk_image_desc_t[1]")
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img_desc[0].image = new_img
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local snk_img = nk.snk_make_image(img_desc)
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local nk_hnd = nk.snk_nkhandle(snk_img)
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local nk_img = nk.nk_image_handle(nk_hnd);
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stb.stbi_image_free(data)
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return nk_img
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end
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-- --------------------------------------------------------------------------------------
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local pix = {}
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local function init(void)
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-- // setup sokol-gfx, sokol-time and sokol-imgui
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local sg_desc = ffi.new("sg_desc[1]")
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sg_desc[0].environment = slib.sglue_environment()
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sg_desc[0].logger.func = slib.slog_func
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sg.sg_setup( sg_desc )
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-- // use sokol-nuklear with all default-options (we're not doing
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-- // multi-sampled rendering or using non-default pixel formats)
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local snk = ffi.new("snk_desc_t[1]")
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snk[0].dpi_scale = sapp.sapp_dpi_scale()
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snk[0].logger.func = slib.slog_func
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nk.snk_setup(snk)
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local base_path = "samples/"
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pix["baboon"] = icon_load(base_path.."images/baboon.png")
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pix["copy"] = icon_load(base_path.."icon/copy.png")
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pix["del"] = icon_load(base_path.."icon/delete.png")
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pix["rocket"] = icon_load(base_path.."icon/rocket.png")
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pix["edit"] = icon_load(base_path.."icon/edit.png")
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end
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-- --------------------------------------------------------------------------------------
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local function cleanup()
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sg.sg_shutdown()
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end
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-- --------------------------------------------------------------------------------------
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local function input(event)
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nk.snk_handle_event(event)
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end
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-- --------------------------------------------------------------------------------------
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-- Static vars
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--
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-- Note: Many vars are locally set or globals. This was from a direct C conversion.
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-- To make static vars workaround then place them below.
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local show_menu = ffi.new("bool[1]", {nk.nk_true})
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local border = ffi.new("bool[1]", {nk.nk_true})
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local resize = ffi.new("bool[1]", {nk.nk_true})
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local movable = ffi.new("bool[1]", {nk.nk_true})
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local no_scrollbar = ffi.new("bool[1]", {nk.nk_false})
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local scale_left = ffi.new("bool[1]", {nk.nk_false})
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local winrect = ffi.new("struct nk_rect[1]", {{10, 25, 1000, 600}})
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-- /* window flags */
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local window_flags = 0
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local minimizable = ffi.new("bool[1]", {nk.nk_true})
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-- /* popups */
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local header_align = nk.NK_HEADER_RIGHT
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-- --------------------------------------------------------------------------------------
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local function draw_demo_ui(ctx)
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-- /* window flags */
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ctx[0].style.window.header.align = header_align
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if (border[0] == true) then window_flags = bit.bor(window_flags, nk.NK_WINDOW_BORDER) end
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if (resize[0] == true) then window_flags = bit.bor(window_flags, nk.NK_WINDOW_SCALABLE) end
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if (movable[0] == true) then window_flags = bit.bor(window_flags, nk.NK_WINDOW_MOVABLE) end
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if (no_scrollbar[0] == true) then window_flags = bit.bor(window_flags, nk.NK_WINDOW_NO_SCROLLBAR) end
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if (scale_left[0] == true) then window_flags = bit.bor(window_flags, nk.NK_WINDOW_SCALE_LEFT) end
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if (minimizable[0] == true) then window_flags = bit.bor(window_flags, nk.NK_WINDOW_MINIMIZABLE) end
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if (nk.nk_begin(ctx, "PNG View", winrect[0], window_flags) == true) then
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if (show_menu[0] == true) then
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-- /* menubar */
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local menu_states = { MENU_DEFAULT = 0, MENU_WINDOWS = 1}
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nk.nk_menubar_begin(ctx)
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-- /* menu #1 */
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nk.nk_layout_row_begin(ctx, nk.NK_STATIC, 500, 5)
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nk.nk_layout_row_push(ctx, 600)
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nk.nk_image(ctx, pix["baboon"])
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-- /*------------------------------------------------
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-- * CONTEXTUAL
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-- *------------------------------------------------*/
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if (nk.nk_contextual_begin(ctx, nk.NK_WINDOW_NO_SCROLLBAR, nk.nk_vec2(150, 300), nk.nk_window_get_bounds(ctx)) == true) then
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nk.nk_layout_row_dynamic(ctx, 30, 1);
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if (nk.nk_contextual_item_image_label(ctx, pix.copy, "Clone", nk.NK_TEXT_RIGHT) == true) then
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print("pressed clone!\n")
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end
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if (nk.nk_contextual_item_image_label(ctx, pix.del, "Delete", nk.NK_TEXT_RIGHT) == true) then
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print("pressed delete!\n")
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end
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if (nk.nk_contextual_item_image_label(ctx, pix.rocket, "Rocket", nk.NK_TEXT_RIGHT) == true) then
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print("pressed rocket!\n")
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end
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if (nk.nk_contextual_item_image_label(ctx, pix.edit, "Edit", nk.NK_TEXT_RIGHT) == true) then
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print("pressed edit!\n")
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end
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nk.nk_contextual_end(ctx)
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end
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nk.nk_layout_row_end(ctx)
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end
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end
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nk.nk_end(ctx)
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return not nk.nk_window_is_closed(ctx, "Overview")
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end
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-- --------------------------------------------------------------------------------------
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local function frame(void)
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local ctx = nk.snk_new_frame()
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-- // see big function at end of file
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draw_demo_ui(ctx)
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-- // the sokol_gfx draw pass
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local pass = ffi.new("sg_pass[1]")
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pass[0].action.colors[0].load_action = sg.SG_LOADACTION_CLEAR
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pass[0].action.colors[0].clear_value = { 0.25, 0.5, 0.7, 1.0 }
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pass[0].swapchain = slib.sglue_swapchain()
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sg.sg_begin_pass(pass)
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nk.snk_render(sapp.sapp_width(), sapp.sapp_height())
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sg.sg_end_pass()
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sg.sg_commit()
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end
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-- --------------------------------------------------------------------------------------
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local app_desc = ffi.new("sapp_desc[1]")
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app_desc[0].init_cb = init
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app_desc[0].frame_cb = frame
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app_desc[0].cleanup_cb = cleanup
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app_desc[0].event_cb = input
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app_desc[0].width = 1920
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app_desc[0].height = 1080
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app_desc[0].window_title = "nuklear (sokol-app)"
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app_desc[0].icon.sokol_default = true
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app_desc[0].logger.func = slib.slog_func
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app_desc[0].enable_clipboard = true
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app_desc[0].ios_keyboard_resizes_canvas = false
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sapp.sapp_run( app_desc )
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-- --------------------------------------------------------------------------------------
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