MeowOS
f44e3bc6d0
git-subtree-dir: sdk git-subtree-mainline:17a972d46fgit-subtree-split:2e7561d74f
62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
/*
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* meow_ui_global.c — App 跨 Activity 控件（§6.1 ②，SDK 托管骨架）。
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*
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* SDK 维护一个全局控件列表（钉在 App 的 Activity 栈之上、跨 Activity 常驻）：
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* - 渲染：meow_ui_gfx present() 每帧在 active activity 内容之上、全局状态栏之下调
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* meow_ui_global_render()（遍历列表调 render_cb）;
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* - 触摸：meow_ui_input TAP 分发先给 meow_ui_global_hit(x,y)——命中返回 1=消费，
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* 否则落到 active activity 页面控件（①）。
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*
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* 骨架（待 B2 细化）：无 z 序细分/无按压态管理/无命中区排布——App 的 render/hit 回调
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* 自行决定绘制与命中。跨 Activity 常驻由「列表不随 Activity 栈变化」天然保证。
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*/
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#include "meow_ui.h"
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#define MEOW_GLOBAL_MAX 16
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typedef struct {
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int id;
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meow_global_render_fn render;
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meow_global_hit_fn hit;
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void *ctx;
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} gentry;
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static gentry g_globals[MEOW_GLOBAL_MAX];
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static int g_global_n = 0;
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void meow_ui_global_add(int id, meow_global_render_fn r, meow_global_hit_fn h, void *ctx)
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{
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for (int i = 0; i < g_global_n; i++)
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if (g_globals[i].id == id) return; /* 同 id 幂等（重复 add 不新增，骨架） */
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if (g_global_n >= MEOW_GLOBAL_MAX) return;
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g_globals[g_global_n].id = id;
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g_globals[g_global_n].render = r;
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g_globals[g_global_n].hit = h;
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g_globals[g_global_n].ctx = ctx;
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g_global_n++;
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}
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void meow_ui_global_remove(int id)
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{
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for (int i = 0; i < g_global_n; i++) {
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if (g_globals[i].id == id) {
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g_globals[i] = g_globals[--g_global_n];
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return;
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}
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}
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}
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void meow_ui_global_render(void)
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{
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for (int i = 0; i < g_global_n; i++)
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if (g_globals[i].render) g_globals[i].render(g_globals[i].ctx);
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}
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int meow_ui_global_hit(int x, int y)
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{
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for (int i = 0; i < g_global_n; i++)
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if (g_globals[i].hit && g_globals[i].hit(g_globals[i].ctx, x, y))
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return 1;
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return 0;
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}
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