Guizero中按钮文本大小无法调整，按钮尺寸反而变大的问题

我正在为痴呆症患者开发一款记忆测验应用——家属/亲友可预先将日常记忆内容录入SQL数据库，应用会据此向患者提问日常相关问题。用Guizero开发GUI时，尝试增大按钮文本尺寸，却出现按钮本身跟着变大的情况，相关代码如下：

box1=Box(Todays_Quiz, layout = "auto", width = 1000, height = 700)
emptyspace =Text(box1, text="")
question1= Text(box1, "What time did you wake up?", width = "fill")
question1.bg= "#A1A9A9"
question1.text_size= 20
emptyspace =Text(box1, text="""


""")

wakeupAnswer1 = get_q1_answers(0)
wakeupAnswer2 = get_q1_answers(1)
wakeupAnswer3 = get_q1_answers(2)

wakeup1 = PushButton(box1, width = 50, height = 5, text = wakeupAnswer1, command=change_score1) # correct answer
emptyspace =Text(box1, text="")
wakeup2 = PushButton(box1, width = 50, height = 5, text = wakeupAnswer2, command=next_question1)
emptyspace =Text(box1, text="")
wakeup3 = PushButton(box1, width = 50, height = 5, text = wakeupAnswer3, command=next_question1)

wakeup1.bg="#fa7a7a"
wakeup1.text_size = 15
wakeup2.bg="#fa7a7a"
wakeup2.text_size =15
wakeup3.bg="#fa7a7a"
wakeup3.text_size = 15

原因 #

Guizero的PushButton组件默认会根据文本尺寸自动调整自身大小，即便预先设置了width和height，修改text_size后，组件会重新计算所需尺寸并覆盖之前的手动设置。

解决方法 #

方法1：先设置文本尺寸，再固定按钮尺寸 #

调整代码顺序，先设置text_size，再指定width和height，让固定尺寸覆盖文本自动调整逻辑：

# 创建按钮时先不指定尺寸
wakeup1 = PushButton(box1, text = wakeupAnswer1, command=change_score1)
wakeup1.bg="#fa7a7a"
wakeup1.text_size = 15
# 再设置固定尺寸
wakeup1.width = 50
wakeup1.height = 5

wakeup2 = PushButton(box1, text = wakeupAnswer2, command=next_question1)
wakeup2.bg="#fa7a7a"
wakeup2.text_size =15
wakeup2.width = 50
wakeup2.height = 5

wakeup3 = PushButton(box1, text = wakeupAnswer3, command=next_question1)
wakeup3.bg="#fa7a7a"
wakeup3.text_size = 15
wakeup3.width = 50
wakeup3.height = 5

方法2：使用text_width控制文本显示宽度 #

设置文本的显示宽度，让文本自动换行，同时保持按钮尺寸不变：

wakeup1 = PushButton(box1, width = 50, height = 5, text = wakeupAnswer1, command=change_score1)
wakeup1.bg="#fa7a7a"
wakeup1.text_size = 15
wakeup1.text_width = 48  # 留出少量边距，避免文本撑满按钮

方法3：锁定组件尺寸 #

通过resize方法禁止按钮自动调整宽高：

wakeup1 = PushButton(box1, width = 50, height = 5, text = wakeupAnswer1, command=change_score1)
wakeup1.bg="#fa7a7a"
wakeup1.text_size = 15
wakeup1.resize(False, False)  # 禁止宽度和高度自动调整

内容的提问来源于stack exchange，提问作者Aaisha Garda