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80 lines
2.4 KiB
80 lines
2.4 KiB
local ffi = require 'ffi'
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ffi.cdef[[
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unsigned int CreateMenu();
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int AppendMenuW(unsigned int hMenu, unsigned int uFlags, unsigned int uIDNewltem, const wchar_t* lpNewltem);
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int MessageBoxW(unsigned int hWnd, const wchar_t* lpText, const wchar_t* lpCaption, unsigned int uType);
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unsigned int GetForegroundWindow();
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unsigned int GetDlgItem(unsigned int hDlg, int nIDDlgItem);
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int EnableWindow(unsigned int hWnd, int bEnable);
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]]
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local uni = require 'ffi.unicode'
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local generate_id = 48886
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local message_map = {}
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gui.MB_ICONQUESTION = 0x00000020
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gui.MB_OK = 0x00000000
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gui.MB_YESNO = 0x00000004
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gui.IDYES = 6
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gui.MF_STRING = 0x00000000
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gui.MF_POPUP = 0x00000010
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gui.WM_COMMAND = 0x0111
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gui.WM_SETTEXT = 0x000C
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local mt = {}
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mt.__index = mt
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function mt:add(name, callback)
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message_map[generate_id] = callback
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local wname = uni.u2w(name)
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ffi.C.AppendMenuW(self.handle, gui.MF_STRING, generate_id, wname)
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generate_id = generate_id + 1
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end
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function gui.menu(main_menu, name)
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local handle = ffi.C.CreateMenu()
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local wname = uni.u2w(name)
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ffi.C.AppendMenuW(main_menu, gui.MF_STRING | gui.MF_POPUP, handle, wname)
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return setmetatable({handle = handle}, mt)
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end
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-- 当WE的窗口过程收到消息时执行
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-- event_data - 事件参数，table，包含以下值
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-- handle, message, wparam, lparam，具体不解释
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-- 返回非负数会调用原窗口函数。返回负数则直接吃掉消息
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function event.EVENT_WINDOW_MESSAGE(event_data)
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-- 只处理菜单信息
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if event_data.message == gui.WM_COMMAND then
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-- 菜单ID（低16位）
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local menu_id = (event_data.wparam & 0xFFFF)
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if message_map[menu_id] then
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message_map[menu_id]()
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end
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end
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return 0
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end
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local function messagebox(hwnd, text, caption, type)
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local wtext = uni.u2w(text)
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local wcaption = uni.u2w(caption)
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return ffi.C.MessageBoxW(hwnd, wtext, wcaption, type)
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end
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function gui.error_message(hwnd, fmt, ...)
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return messagebox(hwnd, fmt:format(...), _("Error") ,gui.MB_ICONQUESTION | gui.MB_OK)
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end
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function gui.message(hwnd, fmt, ...)
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return messagebox(hwnd, fmt:format(...), _("YDWE") ,gui.MB_ICONQUESTION | gui.MB_OK)
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end
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function gui.yesno_message(hwnd, fmt, ...)
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return messagebox(hwnd, fmt:format(...), _("YDWE"), gui.MB_ICONQUESTION | gui.MB_YESNO) == gui.IDYES
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end
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function gui.get_foreground_window()
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return ffi.C.GetForegroundWindow()
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end
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function gui.enable_dialog_item(hwnd, id, enable)
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return ffi.C.EnableWindow(ffi.C.GetDlgItem(hwnd, id), enable)
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end
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