diff options
Diffstat (limited to 'vendor/github.com/awesome-gocui/termbox-go/termbox_windows.go')
| -rw-r--r-- | vendor/github.com/awesome-gocui/termbox-go/termbox_windows.go | 948 |
1 files changed, 0 insertions, 948 deletions
diff --git a/vendor/github.com/awesome-gocui/termbox-go/termbox_windows.go b/vendor/github.com/awesome-gocui/termbox-go/termbox_windows.go deleted file mode 100644 index 22e0f9ea..00000000 --- a/vendor/github.com/awesome-gocui/termbox-go/termbox_windows.go +++ /dev/null @@ -1,948 +0,0 @@ -package termbox - -import "math" -import "syscall" -import "unsafe" -import "unicode/utf16" -import "github.com/mattn/go-runewidth" - -type ( - wchar uint16 - short int16 - dword uint32 - word uint16 - char_info struct { - char wchar - attr word - } - coord struct { - x short - y short - } - small_rect struct { - left short - top short - right short - bottom short - } - console_screen_buffer_info struct { - size coord - cursor_position coord - attributes word - window small_rect - maximum_window_size coord - } - console_cursor_info struct { - size dword - visible int32 - } - input_record struct { - event_type word - _ [2]byte - event [16]byte - } - key_event_record struct { - key_down int32 - repeat_count word - virtual_key_code word - virtual_scan_code word - unicode_char wchar - control_key_state dword - } - window_buffer_size_record struct { - size coord - } - mouse_event_record struct { - mouse_pos coord - button_state dword - control_key_state dword - event_flags dword - } - console_font_info struct { - font uint32 - font_size coord - } -) - -const ( - mouse_lmb = 0x1 - mouse_rmb = 0x2 - mouse_mmb = 0x4 | 0x8 | 0x10 - SM_CXMIN = 28 - SM_CYMIN = 29 -) - -func (this coord) uintptr() uintptr { - return uintptr(*(*int32)(unsafe.Pointer(&this))) -} - -func (this *small_rect) uintptr() uintptr { - return uintptr(unsafe.Pointer(this)) -} - -var kernel32 = syscall.NewLazyDLL("kernel32.dll") -var moduser32 = syscall.NewLazyDLL("user32.dll") -var is_cjk = runewidth.IsEastAsian() - -var ( - proc_set_console_active_screen_buffer = kernel32.NewProc("SetConsoleActiveScreenBuffer") - proc_set_console_screen_buffer_size = kernel32.NewProc("SetConsoleScreenBufferSize") - proc_set_console_window_info = kernel32.NewProc("SetConsoleWindowInfo") - proc_create_console_screen_buffer = kernel32.NewProc("CreateConsoleScreenBuffer") - proc_get_console_screen_buffer_info = kernel32.NewProc("GetConsoleScreenBufferInfo") - proc_write_console_output = kernel32.NewProc("WriteConsoleOutputW") - proc_write_console_output_character = kernel32.NewProc("WriteConsoleOutputCharacterW") - proc_write_console_output_attribute = kernel32.NewProc("WriteConsoleOutputAttribute") - proc_set_console_cursor_info = kernel32.NewProc("SetConsoleCursorInfo") - proc_set_console_cursor_position = kernel32.NewProc("SetConsoleCursorPosition") - proc_get_console_cursor_info = kernel32.NewProc("GetConsoleCursorInfo") - proc_read_console_input = kernel32.NewProc("ReadConsoleInputW") - proc_get_console_mode = kernel32.NewProc("GetConsoleMode") - proc_set_console_mode = kernel32.NewProc("SetConsoleMode") - proc_fill_console_output_character = kernel32.NewProc("FillConsoleOutputCharacterW") - proc_fill_console_output_attribute = kernel32.NewProc("FillConsoleOutputAttribute") - proc_create_event = kernel32.NewProc("CreateEventW") - proc_wait_for_multiple_objects = kernel32.NewProc("WaitForMultipleObjects") - proc_set_event = kernel32.NewProc("SetEvent") - proc_get_current_console_font = kernel32.NewProc("GetCurrentConsoleFont") - get_system_metrics = moduser32.NewProc("GetSystemMetrics") -) - -func set_console_active_screen_buffer(h syscall.Handle) (err error) { - r0, _, e1 := syscall.Syscall(proc_set_console_active_screen_buffer.Addr(), - 1, uintptr(h), 0, 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func set_console_screen_buffer_size(h syscall.Handle, size coord) (err error) { - r0, _, e1 := syscall.Syscall(proc_set_console_screen_buffer_size.Addr(), - 2, uintptr(h), size.uintptr(), 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func set_console_window_info(h syscall.Handle, window *small_rect) (err error) { - var absolute uint32 - absolute = 1 - r0, _, e1 := syscall.Syscall(proc_set_console_window_info.Addr(), - 3, uintptr(h), uintptr(absolute), window.uintptr()) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func create_console_screen_buffer() (h syscall.Handle, err error) { - r0, _, e1 := syscall.Syscall6(proc_create_console_screen_buffer.Addr(), - 5, uintptr(generic_read|generic_write), 0, 0, console_textmode_buffer, 0, 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return syscall.Handle(r0), err -} - -func get_console_screen_buffer_info(h syscall.Handle, info *console_screen_buffer_info) (err error) { - r0, _, e1 := syscall.Syscall(proc_get_console_screen_buffer_info.Addr(), - 2, uintptr(h), uintptr(unsafe.Pointer(info)), 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func write_console_output(h syscall.Handle, chars []char_info, dst small_rect) (err error) { - tmp_coord = coord{dst.right - dst.left + 1, dst.bottom - dst.top + 1} - tmp_rect = dst - r0, _, e1 := syscall.Syscall6(proc_write_console_output.Addr(), - 5, uintptr(h), uintptr(unsafe.Pointer(&chars[0])), tmp_coord.uintptr(), - tmp_coord0.uintptr(), uintptr(unsafe.Pointer(&tmp_rect)), 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func write_console_output_character(h syscall.Handle, chars []wchar, pos coord) (err error) { - r0, _, e1 := syscall.Syscall6(proc_write_console_output_character.Addr(), - 5, uintptr(h), uintptr(unsafe.Pointer(&chars[0])), uintptr(len(chars)), - pos.uintptr(), uintptr(unsafe.Pointer(&tmp_arg)), 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func write_console_output_attribute(h syscall.Handle, attrs []word, pos coord) (err error) { - r0, _, e1 := syscall.Syscall6(proc_write_console_output_attribute.Addr(), - 5, uintptr(h), uintptr(unsafe.Pointer(&attrs[0])), uintptr(len(attrs)), - pos.uintptr(), uintptr(unsafe.Pointer(&tmp_arg)), 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func set_console_cursor_info(h syscall.Handle, info *console_cursor_info) (err error) { - r0, _, e1 := syscall.Syscall(proc_set_console_cursor_info.Addr(), - 2, uintptr(h), uintptr(unsafe.Pointer(info)), 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func get_console_cursor_info(h syscall.Handle, info *console_cursor_info) (err error) { - r0, _, e1 := syscall.Syscall(proc_get_console_cursor_info.Addr(), - 2, uintptr(h), uintptr(unsafe.Pointer(info)), 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func set_console_cursor_position(h syscall.Handle, pos coord) (err error) { - r0, _, e1 := syscall.Syscall(proc_set_console_cursor_position.Addr(), - 2, uintptr(h), pos.uintptr(), 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func read_console_input(h syscall.Handle, record *input_record) (err error) { - r0, _, e1 := syscall.Syscall6(proc_read_console_input.Addr(), - 4, uintptr(h), uintptr(unsafe.Pointer(record)), 1, uintptr(unsafe.Pointer(&tmp_arg)), 0, 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func get_console_mode(h syscall.Handle, mode *dword) (err error) { - r0, _, e1 := syscall.Syscall(proc_get_console_mode.Addr(), - 2, uintptr(h), uintptr(unsafe.Pointer(mode)), 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func set_console_mode(h syscall.Handle, mode dword) (err error) { - r0, _, e1 := syscall.Syscall(proc_set_console_mode.Addr(), - 2, uintptr(h), uintptr(mode), 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func fill_console_output_character(h syscall.Handle, char wchar, n int) (err error) { - tmp_coord = coord{0, 0} - r0, _, e1 := syscall.Syscall6(proc_fill_console_output_character.Addr(), - 5, uintptr(h), uintptr(char), uintptr(n), tmp_coord.uintptr(), - uintptr(unsafe.Pointer(&tmp_arg)), 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func fill_console_output_attribute(h syscall.Handle, attr word, n int) (err error) { - tmp_coord = coord{0, 0} - r0, _, e1 := syscall.Syscall6(proc_fill_console_output_attribute.Addr(), - 5, uintptr(h), uintptr(attr), uintptr(n), tmp_coord.uintptr(), - uintptr(unsafe.Pointer(&tmp_arg)), 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func create_event() (out syscall.Handle, err error) { - r0, _, e1 := syscall.Syscall6(proc_create_event.Addr(), - 4, 0, 0, 0, 0, 0, 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return syscall.Handle(r0), err -} - -func wait_for_multiple_objects(objects []syscall.Handle) (err error) { - r0, _, e1 := syscall.Syscall6(proc_wait_for_multiple_objects.Addr(), - 4, uintptr(len(objects)), uintptr(unsafe.Pointer(&objects[0])), - 0, 0xFFFFFFFF, 0, 0) - if uint32(r0) == 0xFFFFFFFF { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func set_event(ev syscall.Handle) (err error) { - r0, _, e1 := syscall.Syscall(proc_set_event.Addr(), - 1, uintptr(ev), 0, 0) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -func get_current_console_font(h syscall.Handle, info *console_font_info) (err error) { - r0, _, e1 := syscall.Syscall(proc_get_current_console_font.Addr(), - 3, uintptr(h), 0, uintptr(unsafe.Pointer(info))) - if int(r0) == 0 { - if e1 != 0 { - err = error(e1) - } else { - err = syscall.EINVAL - } - } - return -} - -type diff_msg struct { - pos short - lines short - chars []char_info -} - -type input_event struct { - event Event - err error -} - -var ( - orig_cursor_info console_cursor_info - orig_size coord - orig_window small_rect - orig_mode dword - orig_screen syscall.Handle - back_buffer cellbuf - front_buffer cellbuf - term_size coord - input_mode = InputEsc - cursor_x = cursor_hidden - cursor_y = cursor_hidden - foreground = ColorDefault - background = ColorDefault - in syscall.Handle - out syscall.Handle - interrupt syscall.Handle - charbuf []char_info - diffbuf []diff_msg - beg_x = -1 - beg_y = -1 - beg_i = -1 - input_comm = make(chan Event) - interrupt_comm = make(chan struct{}) - cancel_comm = make(chan bool, 1) - cancel_done_comm = make(chan bool) - alt_mode_esc = false - - // these ones just to prevent heap allocs at all costs - tmp_info console_screen_buffer_info - tmp_arg dword - tmp_coord0 = coord{0, 0} - tmp_coord = coord{0, 0} - tmp_rect = small_rect{0, 0, 0, 0} - tmp_finfo console_font_info -) - -func get_cursor_position(out syscall.Handle) coord { - err := get_console_screen_buffer_info(out, &tmp_info) - if err != nil { - panic(err) - } - return tmp_info.cursor_position -} - -func get_term_size(out syscall.Handle) (coord, small_rect) { - err := get_console_screen_buffer_info(out, &tmp_info) - if err != nil { - panic(err) - } - return tmp_info.size, tmp_info.window -} - -func get_win_min_size(out syscall.Handle) coord { - x, _, err := get_system_metrics.Call(SM_CXMIN) - y, _, err := get_system_metrics.Call(SM_CYMIN) - - if x == 0 || y == 0 { - if err != nil { - panic(err) - } - } - - err1 := get_current_console_font(out, &tmp_finfo) - if err1 != nil { - panic(err1) - } - - return coord{ - x: short(math.Ceil(float64(x) / float64(tmp_finfo.font_size.x))), - y: short(math.Ceil(float64(y) / float64(tmp_finfo.font_size.y))), - } -} - -func get_win_size(out syscall.Handle) coord { - err := get_console_screen_buffer_info(out, &tmp_info) - if err != nil { - panic(err) - } - - min_size := get_win_min_size(out) - - size := coord{ - x: tmp_info.window.right - tmp_info.window.left + 1, - y: tmp_info.window.bottom - tmp_info.window.top + 1, - } - - if size.x < min_size.x { - size.x = min_size.x - } - - if size.y < min_size.y { - size.y = min_size.y - } - - return size -} - -func fix_win_size(out syscall.Handle, size coord) (err error) { - window := small_rect{} - window.top = 0 - window.bottom = size.y - 1 - window.left = 0 - window.right = size.x - 1 - return set_console_window_info(out, &window) -} - -func update_size_maybe() { - size := get_win_size(out) - if size.x != term_size.x || size.y != term_size.y { - set_console_screen_buffer_size(out, size) - fix_win_size(out, size) - term_size = size - back_buffer.resize(int(size.x), int(size.y)) - front_buffer.resize(int(size.x), int(size.y)) - front_buffer.clear() - clear() - - area := int(size.x) * int(size.y) - if cap(charbuf) < area { - charbuf = make([]char_info, 0, area) - } - } -} - -var color_table_bg = []word{ - 0, // default (black) - 0, // black - background_red, - background_green, - background_red | background_green, // yellow - background_blue, - background_red | background_blue, // magenta - background_green | background_blue, // cyan - background_red | background_blue | background_green, // white -} - -var color_table_fg = []word{ - foreground_red | foreground_blue | foreground_green, // default (white) - 0, - foreground_red, - foreground_green, - foreground_red | foreground_green, // yellow - foreground_blue, - foreground_red | foreground_blue, // magenta - foreground_green | foreground_blue, // cyan - foreground_red | foreground_blue | foreground_green, // white -} - -const ( - replacement_char = '\uFFFD' - max_rune = '\U0010FFFF' - surr1 = 0xd800 - surr2 = 0xdc00 - surr3 = 0xe000 - surr_self = 0x10000 -) - -func append_diff_line(y int) int { - n := 0 - for x := 0; x < front_buffer.width; { - cell_offset := y*front_buffer.width + x - back := &back_buffer.cells[cell_offset] - front := &front_buffer.cells[cell_offset] - attr, char := cell_to_char_info(*back) - charbuf = append(charbuf, char_info{attr: attr, char: char[0]}) - *front = *back - n++ - w := runewidth.RuneWidth(back.Ch) - if w == 0 || w == 2 && runewidth.IsAmbiguousWidth(back.Ch) { - w = 1 - } - x += w - // If not CJK, fill trailing space with whitespace - if !is_cjk && w == 2 { - charbuf = append(charbuf, char_info{attr: attr, char: ' '}) - } - } - return n -} - -// compares 'back_buffer' with 'front_buffer' and prepares all changes in the form of -// 'diff_msg's in the 'diff_buf' -func prepare_diff_messages() { - // clear buffers - diffbuf = diffbuf[:0] - charbuf = charbuf[:0] - - var diff diff_msg - gbeg := 0 - for y := 0; y < front_buffer.height; y++ { - same := true - line_offset := y * front_buffer.width - for x := 0; x < front_buffer.width; x++ { - cell_offset := line_offset + x - back := &back_buffer.cells[cell_offset] - front := &front_buffer.cells[cell_offset] - if *back != *front { - same = false - break - } - } - if same && diff.lines > 0 { - diffbuf = append(diffbuf, diff) - diff = diff_msg{} - } - if !same { - beg := len(charbuf) - end := beg + append_diff_line(y) - if diff.lines == 0 { - diff.pos = short(y) - gbeg = beg - } - diff.lines++ - diff.chars = charbuf[gbeg:end] - } - } - if diff.lines > 0 { - diffbuf = append(diffbuf, diff) - diff = diff_msg{} - } -} - -func get_ct(table []word, idx int) word { - idx = idx & 0x0F - if idx >= len(table) { - idx = len(table) - 1 - } - return table[idx] -} - -func cell_to_char_info(c Cell) (attr word, wc [2]wchar) { - attr = get_ct(color_table_fg, int(c.Fg)) | get_ct(color_table_bg, int(c.Bg)) - if c.Fg&AttrReverse|c.Bg&AttrReverse != 0 { - attr = (attr&0xF0)>>4 | (attr&0x0F)<<4 - } - if c.Fg&AttrBold != 0 { - attr |= foreground_intensity - } - if c.Bg&AttrBold != 0 { - attr |= background_intensity - } - - r0, r1 := utf16.EncodeRune(c.Ch) - if r0 == 0xFFFD { - wc[0] = wchar(c.Ch) - wc[1] = ' ' - } else { - wc[0] = wchar(r0) - wc[1] = wchar(r1) - } - return -} - -func move_cursor(x, y int) { - err := set_console_cursor_position(out, coord{short(x), short(y)}) - if err != nil { - panic(err) - } -} - -func show_cursor(visible bool) { - var v int32 - if visible { - v = 1 - } - - var info console_cursor_info - info.size = 100 - info.visible = v - err := set_console_cursor_info(out, &info) - if err != nil { - panic(err) - } -} - -func clear() { - var err error - attr, char := cell_to_char_info(Cell{ - ' ', - foreground, - background, - }) - - area := int(term_size.x) * int(term_size.y) - err = fill_console_output_attribute(out, attr, area) - if err != nil { - panic(err) - } - err = fill_console_output_character(out, char[0], area) - if err != nil { - panic(err) - } - if !is_cursor_hidden(cursor_x, cursor_y) { - move_cursor(cursor_x, cursor_y) - } -} - -func key_event_record_to_event(r *key_event_record) (Event, bool) { - if r.key_down == 0 { - return Event{}, false - } - - e := Event{Type: EventKey} - if input_mode&InputAlt != 0 { - if alt_mode_esc { - e.Mod = ModAlt - alt_mode_esc = false - } - if r.control_key_state&(left_alt_pressed|right_alt_pressed) != 0 { - e.Mod = ModAlt - } - } - - ctrlpressed := r.control_key_state&(left_ctrl_pressed|right_ctrl_pressed) != 0 - - if r.virtual_key_code >= vk_f1 && r.virtual_key_code <= vk_f12 { - switch r.virtual_key_code { - case vk_f1: - e.Key = KeyF1 - case vk_f2: - e.Key = KeyF2 - case vk_f3: - e.Key = KeyF3 - case vk_f4: - e.Key = KeyF4 - case vk_f5: - e.Key = KeyF5 - case vk_f6: - e.Key = KeyF6 - case vk_f7: - e.Key = KeyF7 - case vk_f8: - e.Key = KeyF8 - case vk_f9: - e.Key = KeyF9 - case vk_f10: - e.Key = KeyF10 - case vk_f11: - e.Key = KeyF11 - case vk_f12: - e.Key = KeyF12 - default: - panic("unreachable") - } - - return e, true - } - - if r.virtual_key_code <= vk_delete { - switch r.virtual_key_code { - case vk_insert: - e.Key = KeyInsert - case vk_delete: - e.Key = KeyDelete - case vk_home: - e.Key = KeyHome - case vk_end: - e.Key = KeyEnd - case vk_pgup: - e.Key = KeyPgup - case vk_pgdn: - e.Key = KeyPgdn - case vk_arrow_up: - e.Key = KeyArrowUp - case vk_arrow_down: - e.Key = KeyArrowDown - case vk_arrow_left: - e.Key = KeyArrowLeft - case vk_arrow_right: - e.Key = KeyArrowRight - case vk_backspace: - if ctrlpressed { - e.Key = KeyBackspace2 - } else { - e.Key = KeyBackspace - } - case vk_tab: - e.Key = KeyTab - case vk_enter: - e.Key = KeyEnter - case vk_esc: - switch { - case input_mode&InputEsc != 0: - e.Key = KeyEsc - case input_mode&InputAlt != 0: - alt_mode_esc = true - return Event{}, false - } - case vk_space: - if ctrlpressed { - // manual return here, because KeyCtrlSpace is zero - e.Key = KeyCtrlSpace - return e, true - } else { - e.Key = KeySpace - } - } - - if e.Key != 0 { - return e, true - } - } - - if ctrlpressed { - if Key(r.unicode_char) >= KeyCtrlA && Key(r.unicode_char) <= KeyCtrlRsqBracket { - e.Key = Key(r.unicode_char) - if input_mode&InputAlt != 0 && e.Key == KeyEsc { - alt_mode_esc = true - return Event{}, false - } - return e, true - } - switch r.virtual_key_code { - case 192, 50: - // manual return here, because KeyCtrl2 is zero - e.Key = KeyCtrl2 - return e, true - case 51: - if input_mode&InputAlt != 0 { - alt_mode_esc = true - return Event{}, false - } - e.Key = KeyCtrl3 - case 52: - e.Key = KeyCtrl4 - case 53: - e.Key = KeyCtrl5 - case 54: - e.Key = KeyCtrl6 - case 189, 191, 55: - e.Key = KeyCtrl7 - case 8, 56: - e.Key = KeyCtrl8 - } - - if e.Key != 0 { - return e, true - } - } - - if r.unicode_char != 0 { - e.Ch = rune(r.unicode_char) - return e, true - } - - return Event{}, false -} - -func input_event_producer() { - var r input_record - var err error - var last_button Key - var last_button_pressed Key - var last_state = dword(0) - var last_x, last_y = -1, -1 - handles := []syscall.Handle{in, interrupt} - for { - err = wait_for_multiple_objects(handles) - if err != nil { - input_comm <- Event{Type: EventError, Err: err} - } - - select { - case <-cancel_comm: - cancel_done_comm <- true - return - default: - } - - err = read_console_input(in, &r) - if err != nil { - input_comm <- Event{Type: EventError, Err: err} - } - - switch r.event_type { - case key_event: - kr := (*key_event_record)(unsafe.Pointer(&r.event)) - ev, ok := key_event_record_to_event(kr) - if ok { - for i := 0; i < int(kr.repeat_count); i++ { - input_comm <- ev - } - } - case window_buffer_size_event: - sr := *(*window_buffer_size_record)(unsafe.Pointer(&r.event)) - input_comm <- Event{ - Type: EventResize, - Width: int(sr.size.x), - Height: int(sr.size.y), - } - case mouse_event: - mr := *(*mouse_event_record)(unsafe.Pointer(&r.event)) - ev := Event{Type: EventMouse} - switch mr.event_flags { - case 0, 2: - // single or double click - cur_state := mr.button_state - switch { - case last_state&mouse_lmb == 0 && cur_state&mouse_lmb != 0: - last_button = MouseLeft - last_button_pressed = last_button - case last_state&mouse_rmb == 0 && cur_state&mouse_rmb != 0: - last_button = MouseRight - last_button_pressed = last_button - case last_state&mouse_mmb == 0 && cur_state&mouse_mmb != 0: - last_button = MouseMiddle - last_button_pressed = last_button - case last_state&mouse_lmb != 0 && cur_state&mouse_lmb == 0: - last_button = MouseRelease - case last_state&mouse_rmb != 0 && cur_state&mouse_rmb == 0: - last_button = MouseRelease - case last_state&mouse_mmb != 0 && cur_state&mouse_mmb == 0: - last_button = MouseRelease - default: - last_state = cur_state - continue - } - last_state = cur_state - ev.Key = last_button - last_x, last_y = int(mr.mouse_pos.x), int(mr.mouse_pos.y) - ev.MouseX = last_x - ev.MouseY = last_y - case 1: - // mouse motion - x, y := int(mr.mouse_pos.x), int(mr.mouse_pos.y) - if last_state != 0 && (last_x != x || last_y != y) { - ev.Key = last_button_pressed - ev.Mod = ModMotion - ev.MouseX = x - ev.MouseY = y - last_x, last_y = x, y - } else { - ev.Type = EventNone - } - case 4: - // mouse wheel - n := int16(mr.button_state >> 16) - if n > 0 { - ev.Key = MouseWheelUp - } else { - ev.Key = MouseWheelDown - } - last_x, last_y = int(mr.mouse_pos.x), int(mr.mouse_pos.y) - ev.MouseX = last_x - ev.MouseY = last_y - default: - ev.Type = EventNone - } - if ev.Type != EventNone { - input_comm <- ev - } - } - } -} |