159 lines
5.0 KiB
Plaintext
159 lines
5.0 KiB
Plaintext
# main2.vp — ViperFLProject fltk GUI 测试（回调 + 控件展示）
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#
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# 构建需 VPC/TPC 支持 project.vpj linker.static_libs 静态链接
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# （本工程已配置链接 ../includes/fltk/cfltk/build 下的 cfltk2 + FLTK 静态库）。
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#
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# 回调说明：Viper 模块级函数可直接作为 Fl_Callback 传入（VPC 自动把函数名
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# bitcast 为函数指针）。回调签名统一为 def cb(w: bytes, data: bytes)，
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# 其中 w 是触发回调的控件指针，data 是注册时传入的用户数据。
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import t, c
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import stdlib
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import viperlib
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import fltk
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# 模块级全局：供回调访问 main() 中创建的控件指针（回调是 C 层直接调用，
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# 拿不到 main 的局部变量）；空指针用 None（C null），不能用整数 0。
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term_ptr: t.CPtr = None
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status_ptr: t.CPtr = None
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scheme_idx: int = 0
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theme_idx: int = 0
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def on_btn_click(w: bytes, data: bytes):
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"""按钮点击回调：改按钮文字 + 状态栏显示"""
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fltk.Fl_Widget_set_label(w, "Clicked!")
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fltk.Fl_Widget_redraw(w)
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fltk.Fl_Output_set_value(status_ptr, "Button clicked")
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def on_check(w: bytes, data: bytes):
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"""复选框回调：状态栏显示勾选状态"""
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v: int = fltk.Fl_Check_Button_is_checked(w)
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if v != 0:
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fltk.Fl_Output_set_value(status_ptr, "Checked")
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else:
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fltk.Fl_Output_set_value(status_ptr, "Unchecked")
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def on_slider(w: bytes, data: bytes):
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"""滑动条回调：状态栏实时显示数值"""
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v: double = fltk.Fl_Slider_value(w)
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buf: bytes = stdlib.malloc(32)
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if buf is not None:
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viperlib.snprintf(buf, 32, "Slider = %.2f", v)
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fltk.Fl_Output_set_value(status_ptr, buf)
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stdlib.free(buf)
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def on_go(w: bytes, data: bytes):
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"""按钮回调：读取输入框文本 → 终端打印"""
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txt: str = fltk.Fl_Input_value(data)
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fltk.Fl_Terminal_append(term_ptr, "input: ")
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fltk.Fl_Terminal_append(term_ptr, txt)
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fltk.Fl_Terminal_append(term_ptr, "\n")
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def on_menu_open(w: bytes, data: bytes):
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fltk.Fl_Output_set_value(status_ptr, "Menu: File/Open")
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def on_menu_about(w: bytes, data: bytes):
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fltk.Fl_Output_set_value(status_ptr, "Menu: Help/About")
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def on_style(w: bytes, data: bytes):
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"""风格切换回调：base→plastic→gtk+→gleam→oxy 循环"""
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global scheme_idx
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scheme_idx = scheme_idx + 1
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if scheme_idx == 1:
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fltk.Fl.set_scheme("plastic")
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elif scheme_idx == 2:
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fltk.Fl.set_scheme("gtk+")
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elif scheme_idx == 3:
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fltk.Fl.set_scheme("gleam")
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elif scheme_idx == 4:
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fltk.Fl.set_scheme("oxy")
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else:
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fltk.Fl.set_scheme("base")
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scheme_idx = 0
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fltk.Fl_Output_set_value(status_ptr, f"Scheme: {fltk.Fl.scheme_string()}")
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def on_theme(w: bytes, data: bytes):
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"""Fl_Theme 主题切换：base→Dark→Metro 循环"""
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global theme_idx
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theme_idx = theme_idx + 1
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if theme_idx == 1:
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fltk.Fl.set_theme_dark()
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elif theme_idx == 2:
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fltk.Fl.set_theme_metro()
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else:
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fltk.Fl.set_scheme("base")
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fltk.Fl.reload_scheme()
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theme_idx = 0
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fltk.Fl_Output_set_value(status_ptr, f"Theme: {theme_idx}")
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def on_tick(w: bytes, data: bytes):
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"""定时器回调：每秒终端打印一次并续订"""
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fltk.Fl_Terminal_append(term_ptr, "tick\n")
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fltk.Fl.add_timeout(1.0, on_tick, 0)
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def main() -> int:
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global term_ptr, status_ptr
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fltk.Fl_init_all()
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win = fltk.Fl_Window(600, 460, "Viper FLTK Demo")
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menubar = fltk.Fl_Menu_Bar(0, 0, 600, 25)
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status = fltk.Fl_Output(10, 30, 580, 25)
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btn = fltk.Fl_Button(10, 70, 120, 30, "Click Me")
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check = fltk.Fl_Check_Button(150, 70, 100, 30, "Enable")
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slider = fltk.Fl_Slider(280, 70, 200, 30)
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input_ = fltk.Fl_Input(10, 110, 210, 30, "Type here")
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go = fltk.Fl_Button(230, 110, 55, 30, "Go")
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style = fltk.Fl_Button(295, 110, 55, 30, "Style")
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theme = fltk.Fl_Button(360, 110, 55, 30, "Theme")
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spinner = fltk.Fl_Spinner(425, 110, 100, 30)
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browser = fltk.Fl_Browser(10, 150, 280, 140)
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tree = fltk.Fl_Tree(300, 150, 280, 140)
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term = fltk.Fl_Terminal(10, 300, 570, 120, "Terminal")
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win.end()
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# 保存全局指针（回调用）
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term_ptr = t.CPtr(term._ptr)
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status_ptr = t.CPtr(status._ptr)
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# 菜单（回调 + 快捷键 Ctrl+O：0x4000 | 'o'(111)）
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menubar.add("File/Open", 0x4000 | 111, 0, on_menu_open)
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menubar.add("Help/About", 0, 0, on_menu_about)
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# 回调注册
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btn.set_callback(on_btn_click, 0)
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check.set_callback(on_check, 0)
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slider.set_callback(on_slider, 0)
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go.set_callback(on_go, input_._ptr)
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style.set_callback(on_style, 0)
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theme.set_callback(on_theme, 0)
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# 数值微调框
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spinner.set_minimum(0.0)
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spinner.set_maximum(100.0)
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spinner.set_step(1.0)
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spinner.set_value(42.0)
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# 列表 + 树
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browser.add("Item 1")
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browser.add("Item 2")
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browser.add("Item 3")
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tree.add("Root/Child A/Leaf 1")
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tree.add("Root/Child B")
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# 定时器
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fltk.Fl.add_timeout(1.0, on_tick, 0)
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win.show()
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fltk.Fl.run()
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return 0
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