first commit

button/button.c

@@ -0,0 +1,151 @@
+#include "button.h"
+#include "../common/device.h"
+#include "../fonts/font_16x16.h"
+#include <stddef.h>
+
+void button_init(button_t *b, int cx, int cy, int w, int h,
+                 unsigned int bg, unsigned int border)
+{
+    b->cx = cx;
+    b->cy = cy;
+    b->half_w = w / 2;
+    b->half_h = h / 2;
+    b->bg_color = bg;
+    b->border_color = border;
+    b->visible = 1;
+    b->learned = 0;
+    b->filled = 1;
+    b->corner_radius = 0;
+    b->label = NULL;
+    b->label_color = 0;
+    b->bg_bmp = NULL;
+    b->bg_bmp_w = 0;
+    b->bg_bmp_h = 0;
+}
+
+void button_init_rounded(button_t *b, int cx, int cy, int w, int h,
+                         unsigned int bg, unsigned int border, int cr)
+{
+    button_init(b, cx, cy, w, h, bg, border);
+    b->corner_radius = cr;
+}
+
+void button_draw(button_t *b)
+{
+    if (!b->visible) return;
+
+    int x0 = b->cx - b->half_w;
+    int y0 = b->cy - b->half_h;
+    int w  = b->half_w * 2;
+    int h  = b->half_h * 2;
+    int cr = b->corner_radius;
+
+    /* BMP image background (pre-rendered Apple-style button) */
+    if (b->bg_bmp)
+    {
+        int bx = b->cx - b->bg_bmp_w / 2;
+        int by = b->cy - b->bg_bmp_h / 2;
+        show_bmp(b->bg_bmp, b->bg_bmp_w, b->bg_bmp_h, bx, by);
+        /* skip regular fill/border — fall through to label + learned dot */
+    }
+    else if (cr > 0)
+    {
+        /* Rounded rect: border (full size) then fill (inset by 2px) */
+        if (b->filled)
+        {
+            if (b->border_color != b->bg_color)
+            {
+                fb_fill_rounded(x0, y0, w, h, cr, b->border_color);
+                fb_fill_rounded(x0 + 2, y0 + 2, w - 4, h - 4,
+                                cr > 2 ? cr - 2 : 0, b->bg_color);
+            }
+            else
+            {
+                fb_fill_rounded(x0, y0, w, h, cr, b->bg_color);
+            }
+        }
+    }
+    else
+    {
+        /* Original sharp-rectangle path */
+        if (b->filled)
+            fb_fill(x0, y0, w, h, b->bg_color);
+
+        int i;
+        for (i = 0; i < 2; i++)
+        {
+            fb_fill(x0 + i, y0, w - i * 2, 1, b->border_color);
+            fb_fill(x0 + i, y0 + h - 1, w - i * 2, 1, b->border_color);
+        }
+        for (i = 0; i < 2; i++)
+        {
+            fb_fill(x0, y0 + i, 1, h - i * 2, b->border_color);
+            fb_fill(x0 + w - 1, y0 + i, 1, h - i * 2, b->border_color);
+        }
+    }
+
+    /* Label */
+    if (b->label && b->label[0])
+    {
+        int len = 0;
+        const char *p;
+        for (p = b->label; *p; p++) len++;
+
+        int avail_w = w - 8;
+        int avail_h = h - 6;
+
+        int target_dh = avail_h;
+        if (target_dh > 22) target_dh = 22;
+        int target_dw = target_dh;
+
+        int total_w = target_dw * len;
+        if (total_w > avail_w)
+        {
+            target_dw = avail_w / len;
+            target_dh = target_dw;
+        }
+
+        int start_x = b->cx - (target_dw * len) / 2;
+        int start_y = b->cy - target_dh / 2;
+
+        show_string(font_16x16, FONT_FW, FONT_FH,
+                    b->label, start_x, start_y, target_dw, target_dh,
+                    b->label_color);
+    }
+
+    /* Learned dot */
+    if (b->learned)
+    {
+        int dx = x0 + w - 10;
+        int dy = y0 + 8;
+        int r = 4;
+        int x, y;
+        for (y = dy - r; y <= dy + r; y++)
+        {
+            for (x = dx - r; x <= dx + r; x++)
+            {
+                if ((x - dx) * (x - dx) + (y - dy) * (y - dy) <= r * r)
+                {
+                    fb_put(x, y, RGB(0, 255, 0));
+                }
+            }
+        }
+    }
+}
+
+int button_hit(button_t *b, int sx, int sy)
+{
+    if (!b->visible) return 0;
+    return (sx >= b->cx - b->half_w && sx <= b->cx + b->half_w &&
+            sy >= b->cy - b->half_h && sy <= b->cy + b->half_h);
+}
+
+void button_set_learned(button_t *b, int on)
+{
+    b->learned = on;
+}
+
+void button_set_filled(button_t *b, int filled)
+{
+    b->filled = filled;
+}

button/button.h

@@ -0,0 +1,29 @@
+#ifndef BUTTON_H
+#define BUTTON_H
+
+typedef struct
+{
+    int cx, cy;
+    int half_w, half_h;
+    unsigned int bg_color;
+    unsigned int border_color;
+    int visible;
+    int learned;
+    int filled;
+    int corner_radius;
+    const char *label;
+    unsigned int label_color;
+    unsigned int *bg_bmp;
+    int bg_bmp_w, bg_bmp_h;
+} button_t;
+
+void button_init(button_t *b, int cx, int cy, int w, int h,
+                 unsigned int bg, unsigned int border);
+void button_init_rounded(button_t *b, int cx, int cy, int w, int h,
+                         unsigned int bg, unsigned int border, int cr);
+void button_draw(button_t *b);
+int  button_hit(button_t *b, int sx, int sy);
+void button_set_learned(button_t *b, int on);
+void button_set_filled(button_t *b, int filled);
+
+#endif