Update sys/windows to be closer to the soon to be deleted sys/win32

core/sys/windows/comdlg32.odin

@@ -0,0 +1,168 @@
+// +build windows
+package sys_windows
+
+foreign import "system:Comdlg32.lib"
+import "core:strings"
+
+LPOFNHOOKPROC :: #type proc "stdcall" (hdlg: HWND, msg: u32, wparam: WPARAM, lparam: LPARAM) -> UINT_PTR
+
+OPENFILENAMEW :: struct {
+	lStructSize: 	        DWORD,
+	hwndOwner: 	        HWND,
+	hInstance: 	        HINSTANCE,
+	lpstrFilter: 	        wstring,
+	lpstrCustomFilter: 	wstring,
+	nMaxCustFilter: 	DWORD,
+	nFilterIndex: 	        DWORD,
+	lpstrFile: 	        wstring,
+	nMaxFile: 	        DWORD,
+	lpstrFileTitle: 	wstring,
+	nMaxFileTitle: 	        DWORD,
+	lpstrInitialDir: 	wstring,
+	lpstrTitle: 	        wstring,
+	Flags: 	                DWORD,
+	nFileOffset: 	        WORD,
+	nFileExtension: 	WORD,
+	lpstrDefExt: 	        wstring,
+	lCustData: 	        LPARAM,
+	lpfnHook: 	        LPOFNHOOKPROC,
+	lpTemplateName: 	wstring,
+	lpEditInfo: 	        rawptr, // LPEDITMENU,
+	lpstrPrompt: 	        wstring,
+	pvReserved:             rawptr,
+	dwReserved:             DWORD,
+	FlagsEx:                DWORD,
+}
+
+@(default_calling_convention="stdcall")
+foreign Comdlg32 {
+	GetOpenFileNameW     :: proc(arg1: ^OPENFILENAMEW) -> BOOL ---
+	GetSaveFileNameW     :: proc(arg1: ^OPENFILENAMEW) -> BOOL ---
+	CommDlgExtendedError :: proc() -> u32 ---
+}
+
+OPEN_TITLE :: "Select file to open"
+OPEN_FLAGS :: u32(OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST)
+OPEN_FLAGS_MULTI :: OPEN_FLAGS | OFN_ALLOWMULTISELECT | OFN_EXPLORER
+
+SAVE_TITLE :: "Select file to save"
+SAVE_FLAGS :: u32(OFN_OVERWRITEPROMPT | OFN_EXPLORER)
+SAVE_EXT   :: "txt"
+
+Open_Save_Mode :: enum {
+	Open = 0,
+	Save = 1,
+}
+
+_open_file_dialog :: proc(title: string, dir: string,
+                          filters: []string, default_filter: u32,
+                          flags: u32, default_ext: string,
+                          mode: Open_Save_Mode, allocator := context.temp_allocator) -> (path: string, ok: bool = true) {
+	context.allocator = allocator
+	file_buf := make([]u16, MAX_PATH_WIDE)
+	defer if !ok {
+		delete(file_buf)
+	}
+
+	// Filters need to be passed as a pair of strings (title, filter)
+	filter_len := u32(len(filters))
+	if filter_len % 2 != 0 {
+		return "", false
+	}
+
+	filter: string
+	filter = strings.join(filters, "\u0000", context.temp_allocator)
+	filter = strings.concatenate({filter, "\u0000"}, context.temp_allocator)
+
+	ofn := OPENFILENAMEW{
+		lStructSize     = size_of(OPENFILENAMEW),
+		lpstrFile       = wstring(&file_buf[0]),
+		nMaxFile        = MAX_PATH_WIDE,
+		lpstrTitle      = utf8_to_wstring(title, context.temp_allocator),
+		lpstrFilter     = utf8_to_wstring(filter, context.temp_allocator),
+		lpstrInitialDir = utf8_to_wstring(dir, context.temp_allocator),
+		nFilterIndex    = u32(clamp(default_filter, 1, filter_len / 2)),
+		lpstrDefExt     = utf8_to_wstring(default_ext, context.temp_allocator),
+		Flags           = u32(flags),
+	}
+
+	switch mode {
+	case .Open:
+		ok = bool(GetOpenFileNameW(&ofn))
+	case .Save:
+		ok = bool(GetSaveFileNameW(&ofn))
+	case:
+		ok = false
+	}
+
+	if !ok {
+		return
+	}
+
+
+	file_name, _ := utf16_to_utf8(file_buf[:], allocator)
+	path = strings.trim_right_null(file_name)
+	return
+}
+
+select_file_to_open :: proc(title := OPEN_TITLE, dir := ".",
+                            filters := []string{"All Files", "*.*"}, default_filter := u32(1),
+                            flags := OPEN_FLAGS, allocator := context.temp_allocator) -> (path: string, ok: bool) {
+
+	path, ok = _open_file_dialog(title, dir, filters, default_filter, flags, "", Open_Save_Mode.Open, allocator)
+	return
+}
+
+select_file_to_save :: proc(title := SAVE_TITLE, dir := ".",
+                            filters := []string{"All Files", "*.*"}, default_filter := u32(1),
+                            flags := SAVE_FLAGS, default_ext := SAVE_EXT,
+                            allocator := context.temp_allocator) -> (path: string, ok: bool) {
+
+	path, ok = _open_file_dialog(title, dir, filters, default_filter, flags, default_ext, Open_Save_Mode.Save, allocator)
+	return
+}
+
+// TODO: Implement convenience function for select_file_to_open with ALLOW_MULTI_SELECT that takes
+//       it output of the form "path\u0000\file1u\0000file2" and turns it into []string with the path + file pre-concatenated for you.
+
+OFN_ALLOWMULTISELECT     :: 0x00000200 // NOTE(Jeroen): Without OFN_EXPLORER it uses the Win3 dialog.
+OFN_CREATEPROMPT         :: 0x00002000
+OFN_DONTADDTORECENT      :: 0x02000000
+OFN_ENABLEHOOK           :: 0x00000020
+OFN_ENABLEINCLUDENOTIFY  :: 0x00400000
+OFN_ENABLESIZING         :: 0x00800000
+OFN_ENABLETEMPLATE       :: 0x00000040
+OFN_ENABLETEMPLATEHANDLE :: 0x00000080
+OFN_EXPLORER             :: 0x00080000
+OFN_EXTENSIONDIFFERENT   :: 0x00000400
+OFN_FILEMUSTEXIST        :: 0x00001000
+OFN_FORCESHOWHIDDEN      :: 0x10000000
+OFN_HIDEREADONLY         :: 0x00000004
+OFN_LONGNAMES            :: 0x00200000
+OFN_NOCHANGEDIR          :: 0x00000008
+OFN_NODEREFERENCELINKS   :: 0x00100000
+OFN_NOLONGNAMES          :: 0x00040000
+OFN_NONETWORKBUTTON      :: 0x00020000
+OFN_NOREADONLYRETURN     :: 0x00008000
+OFN_NOTESTFILECREATE     :: 0x00010000
+OFN_NOVALIDATE           :: 0x00000100
+OFN_OVERWRITEPROMPT      :: 0x00000002
+OFN_PATHMUSTEXIST        :: 0x00000800
+OFN_READONLY             :: 0x00000001
+OFN_SHAREAWARE           :: 0x00004000
+OFN_SHOWHELP             :: 0x00000010
+
+CDERR_DIALOGFAILURE      :: 0x0000FFFF
+CDERR_GENERALCODES       :: 0x00000000
+CDERR_STRUCTSIZE         :: 0x00000001
+CDERR_INITIALIZATION     :: 0x00000002
+CDERR_NOTEMPLATE         :: 0x00000003
+CDERR_NOHINSTANCE        :: 0x00000004
+CDERR_LOADSTRFAILURE     :: 0x00000005
+CDERR_FINDRESFAILURE     :: 0x00000006
+CDERR_LOADRESFAILURE     :: 0x00000007
+CDERR_LOCKRESFAILURE     :: 0x00000008
+CDERR_MEMALLOCFAILURE    :: 0x00000009
+CDERR_MEMLOCKFAILURE     :: 0x0000000A
+CDERR_NOHOOK             :: 0x0000000B
+CDERR_REGISTERMSGFAIL    :: 0x0000000C