Golang Window.MaxYX方法代码示例

// makes the menu inside the contacts window
func makeContactsMenu(contacts []ts.Contact, contactsWin *gc.Window) ([]*gc.MenuItem, *gc.Menu, *gc.Window) {
	menu_items := make([]*gc.MenuItem, len(contacts))
	var err error
	for i, val := range contacts {
		menu_items[i], err = gc.NewItem((val.Name), "")
		if err != nil {
			log.Fatal("Error making item for contact menu... ", err)
		}
	}
	contactMenu, err := gc.NewMenu(menu_items)
	if err != nil {
		log.Fatal("Error creating contact menu from menu_items... ", err)
	}
	contactsWinSizeY, contactsWinSizeX := contactsWin.MaxYX()
	contactsWin.Keypad(true)
	contactsMenuWin := contactsWin.Derived((contactsWinSizeY - 5), (contactsWinSizeX - 2), 3, 1)
	contactMenu.SetWindow(contactsMenuWin)
	contactMenu.Format(len(contacts), 1)
	contactMenu.Mark(" * ")

	title := "Contacts"
	contactsWin.MovePrint(1, (contactsWinSizeX/2)-(len(title)/2), title)
	contactsWin.HLine(2, 1, '-', contactsWinSizeX-2)
	contactsMenuWin.Keypad(true)
	contactsMenuWin.ScrollOk(true)
	return menu_items, contactMenu, contactsMenuWin
}

//creates the three Main big windows that make up the GUI
func createMainWindows(stdscr *gc.Window) (*gc.Window, *gc.Window, *gc.Window, *gc.Window, *gc.Window) {
	rows, cols := stdscr.MaxYX()
	height, width := rows, int(float64(cols)*.2)

	var contactsWin, messageWinBorder, inputBorderWin, inputWin *gc.Window
	var err error
	contactsWin, err = gc.NewWindow(height, width, 0, 0)
	if err != nil {
		log.Fatal("Failed to create Contact Window:", err)
	}
	err = contactsWin.Border('|', '|', '-', '-', '+', '+', '+', '+')
	if err != nil {
		log.Fatal("Failed to create Border of Contact Window:", err)
	}

	// messageWinBorder is just the border. msgWin is the actual input window
	// doing this simplifies handling text a fair amount.
	// also the derived function never errors. Which seems dangerous
	begin_x := width + 1
	height = int(float64(rows) * .8)
	width = int(float64(cols) * .8)
	messageWinBorder, err = gc.NewWindow(height, width, 0, begin_x)
	if err != nil {
		log.Fatal("Failed to create Message Border Window:", err)
	}
	err = messageWinBorder.Border('|', '|', '-', '-', '+', '+', '+', '+')
	if err != nil {
		log.Fatal("Failed to create Border of Message Window:", err)
	}
	msgWin, err := gc.NewWindow((height - 2), (width - 2), 1, (begin_x + 1))
	if err != nil {
		log.Fatal("Failed to create the message Window:", err)
	}

	begin_y := int(float64(rows)*.8) + 1
	height = int(float64(rows) * .2)
	inputBorderWin, err = gc.NewWindow(height, width, begin_y, begin_x)
	if err != nil {
		log.Fatal("Failed to create InputBorder Window:", err)
	}
	err = inputBorderWin.Border('|', '|', '-', '-', '+', '+', '+', '+')
	if err != nil {
		log.Fatal("Failed to create Border of the InputBorder Window:", err)
	}
	// inputBorderWin is just the border. InputWin is the actual input window
	// doing this simplifies handling text a fair amount.
	// also the derived function never errors. Which seems dangerous
	inputWin, err = gc.NewWindow((height - 2), (width - 2), (begin_y + 1), (begin_x + 1))
	if err != nil {
		log.Fatal("Failed to create the inputWin Window:", err)
	}

	inputWin.ScrollOk(true)
	inputWin.Keypad(true)
	msgWin.ScrollOk(true)

	return contactsWin, messageWinBorder, msgWin, inputBorderWin, inputWin
}

// Hello dialog. So the nooblets know the controls
func doHello(stdscr *gc.Window) {
	stdscr.Refresh()
	y, x := stdscr.MaxYX()
	center_x := int(x / 2)
	center_y := int(y / 2)
	stdscr.MovePrintln(center_y-6, center_x-4, "Controls:")
	stdscr.MovePrintln(center_y-5, center_x-12, "Escape: Exit the program.")
	stdscr.MovePrintln(center_y-4, center_x-30, "Tab: Switch between the input window and the Message window.")
	stdscr.MovePrintln(center_y-3, center_x-11, "Return: Send a message")
	stdscr.MovePrintln(center_y-2, center_x-44, `Shift + Right Arrow: put in a new line '\n' character (like shift+return in facebook chat)`)
	stdscr.MovePrintln(center_y-1, center_x-30, "Page-Up / Page-Down: Scroll up in the message history window")
}

func handleInput(stdscr *gc.Window, ship *Ship) bool {
	lines, cols := stdscr.MaxYX()
	y, x := ship.YX()
	k := stdscr.GetChar()

	switch byte(k) {
	case 0:
		break
	case 'a':
		x--
		if x < 2 {
			x = 2
		}
	case 'd':
		x++
		if x > cols-3 {
			x = cols - 3
		}
	case 's':
		y++
		if y > lines-4 {
			y = lines - 4
		}
	case 'w':
		y--
		if y < 2 {
			y = 2
		}
	case ' ':
		objects = append(objects, newBullet(y+1, x+4))
		objects = append(objects, newBullet(y+3, x+4))
	default:
		return false
	}
	ship.MoveWindow(y, x)
	return true
}

func main() {
	f, err := os.Create("err.log")
	if err != nil {
		log.Fatal(err)
	}
	defer f.Close()

	log.SetOutput(f)

	var stdscr *gc.Window
	stdscr, err = gc.Init()
	if err != nil {
		log.Println("Init:", err)
	}
	defer gc.End()

	rand.Seed(time.Now().Unix())
	gc.StartColor()
	gc.Cursor(0)
	gc.Echo(false)
	gc.HalfDelay(1)

	gc.InitPair(1, gc.C_WHITE, gc.C_BLACK)
	gc.InitPair(2, gc.C_YELLOW, gc.C_BLACK)
	gc.InitPair(3, gc.C_MAGENTA, gc.C_BLACK)
	gc.InitPair(4, gc.C_RED, gc.C_BLACK)

	gc.InitPair(5, gc.C_BLUE, gc.C_BLACK)
	gc.InitPair(6, gc.C_GREEN, gc.C_BLACK)

	lines, cols := stdscr.MaxYX()
	pl, pc := lines, cols*3

	ship := newShip(lines/2, 5)
	objects = append(objects, ship)

	field := genStarfield(pl, pc)
	text := stdscr.Duplicate()

	c := time.NewTicker(time.Second / 2)
	c2 := time.NewTicker(time.Second / 16)
	px := 0

loop:
	for {
		text.MovePrintf(0, 0, "Life: [%-5s]", lifeToText(ship.life))
		stdscr.Erase()
		stdscr.Copy(field.Window, 0, px, 0, 0, lines-1, cols-1, true)
		drawObjects(stdscr)
		stdscr.Overlay(text)
		stdscr.Refresh()
		select {
		case <-c.C:
			spawnAsteroid(stdscr.MaxYX())
			if px+cols >= pc {
				break loop
			}
			px++
		case <-c2.C:
			updateObjects(stdscr.MaxYX())
			drawObjects(stdscr)
		default:
			if !handleInput(stdscr, ship) || ship.Expired(-1, -1) {
				break loop
			}
		}
	}
	msg := "Game Over"
	end, err := gc.NewWindow(5, len(msg)+4, (lines/2)-2, (cols-len(msg))/2)
	if err != nil {
		log.Fatal("game over:", err)
	}
	end.MovePrint(2, 2, msg)
	end.Box(gc.ACS_VLINE, gc.ACS_HLINE)
	end.Refresh()
	gc.Nap(2000)
}

// handles keyboard input
func inputHandler(inputWin *gc.Window, stdscr *gc.Window, contactsMenuWin *gc.Window, contactMenu *gc.Menu, msgWin *gc.Window) {
	var NLlocate = map[int]newLine{}
	var c gc.Char
	var rawInput gc.Key
	max_y, max_x := inputWin.MaxYX()
	for {
		rawInput = inputWin.GetChar()
		c = gc.Char(rawInput)
		// debugLog.Println(rawInput)
		// debugLog.Println(c)

		//Escape to Quit
		if c == gc.Char(27) {
			break
		} else if rawInput == gc.KEY_BACKSPACE || c == gc.Char(127) {
			//Delete Key
			y, x := inputWin.CursorYX()
			var del = byte('F')
			if x != 0 {
				inputWin.MoveDelChar(y, x-1)
				del = inputBuffer[placer]
				copy(inputBuffer[placer:len(inputBuffer)-1], inputBuffer[placer+1:])
				inputBuffer = inputBuffer[0 : len(inputBuffer)-1]
				placer--
				if del != byte('\n') && NLlocate[y+scroll]._cursorX > x {
					temp := newLine{NLlocate[y+scroll]._cursorX - 1, NLlocate[y+scroll]._placer - 1}
					NLlocate[y+scroll] = temp
				}
				//debugLog.Println(inputBuffer)
			} else if y != 0 { //when x==0 and y!=0
				inputWin.Move(y-1, max_x-1)
				inputWin.MoveDelChar(y-1, max_x-1)
				del = inputBuffer[placer]
				copy(inputBuffer[placer:len(inputBuffer)-1], inputBuffer[placer+1:])
				inputBuffer = inputBuffer[0 : len(inputBuffer)-1]
				//debugLog.Println(inputBuffer)
				placer--
			}
			if del == byte('\n') {
				inputWin.Erase()
				inputWin.Print(string(inputBuffer))
				inputWin.Move(y-1, NLlocate[y-1+scroll]._cursorX)
				temp, check := NLlocate[y+scroll]
				var temp_cursor = temp._cursorX
				var temp_placer = temp._placer
				if check && NLlocate[y-1+scroll]._cursorX+temp_cursor >= max_x {
					_newLine := newLine{NLlocate[y-1+scroll]._cursorX + temp_cursor - max_x, NLlocate[y+scroll]._placer - 1}
					NLlocate[y+scroll] = _newLine
					delete(NLlocate, y-1)
				} else if check { // check if there are any '\n' this line
					var largest = -1          // if yes, select all '\n' and move
					for i := range NLlocate { // placer by 1 and adjust cursor
						if i >= y+scroll { // accordingly
							if next_nl, ok := NLlocate[i+1]; ok {
								new_nl := newLine{next_nl._cursorX, next_nl._placer - 1}
								NLlocate[i] = new_nl
							}
						}
						if i > largest {
							largest = i
						}
					}
					delete(NLlocate, largest) // delete last map entry
					_newLine := newLine{NLlocate[y-1+scroll]._cursorX + temp_cursor, NLlocate[y-1+scroll]._placer + temp_placer - 1}
					NLlocate[y-1+scroll] = _newLine
				} else {
					delete(NLlocate, y-1+scroll)
				}
			}
		} else if c == gc.KEY_PAGEDOWN {
			//debugLog.Println("HIT DOWN")
			msgWin.Scroll(-10)
			msgWin.Refresh()
			inputWin.Refresh()
		} else if c == gc.KEY_PAGEUP {
			//debugLog.Println("HIT UP")
			msgWin.Scroll(10)
			msgWin.Refresh()
			inputWin.Refresh()
		} else if c == gc.KEY_LEFT {
			y, x := inputWin.CursorYX()
			if x != 0 {
				inputWin.Move(y, x-1)
				placer--
			} else if y != 0 {
				inputWin.Move(y-1, max_x-1)
				placer--
			}
			if len(inputBuffer) > 0 && inputBuffer[placer+1] == byte('\n') {
				inputWin.Move(y-1, NLlocate[y-1+scroll]._cursorX)
			}
		} else if c == gc.KEY_RIGHT {
			y, x := inputWin.CursorYX()
			placer++
			if inputBuffer == nil || placer == len(inputBuffer) {
				inputBuffer = append(inputBuffer, byte(' '))
			}
			if inputBuffer[placer] == byte('\n') || x >= max_x-1 {
				inputWin.Move(y+1, 0)
//.........这里部分代码省略.........