196 lines
4.1 KiB
C
196 lines
4.1 KiB
C
#include <gui.h>
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#include <gui_private.h>
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#include <gui/label.h>
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#include <gui/line_edit.h>
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#include <camera.h>
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#include <gfx.h>
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#include <input.h>
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#include <mouse.h>
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#include <pad.h>
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#include <peripheral.h>
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#include <string.h>
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struct sprite gui_line_edit_sprites[MAX_GUI_LINE_EDIT_SPRITES];
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/* Alias for readability. */
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static const struct sprite *const refs = gui_line_edit_sprites;
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static int render_left(const struct gui_line_edit *const l,
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short *const x, const short y)
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{
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sprite_get_or_ret(s, -1);
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if (sprite_clone(&refs[GUI_LINE_EDIT_LEFT], s))
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return -1;
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s->x = *x;
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s->y = y;
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sprite_sort(s);
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*x = s->x + s->w;
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return 0;
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}
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static int render_mid(const struct gui_line_edit *const l,
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short *const x, const short y)
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{
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const short mid_w = refs[GUI_LINE_EDIT_MID].w,
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lw = refs[GUI_LINE_EDIT_LEFT].w,
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rw = refs[GUI_LINE_EDIT_RIGHT].w,
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w = l->w - lw - rw;
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if (w > 0)
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{
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const short rem_mid = w > 0 ? w % mid_w : 0,
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whole_mid = w / mid_w,
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n_mid = rem_mid ? whole_mid + 1 : whole_mid;
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for (struct
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{
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size_t i;
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short x;
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} a = {.x = lw};
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a.i < n_mid;
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a.i++, a.x += mid_w)
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{
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sprite_get_or_ret(m, -1);
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if (sprite_clone(&refs[GUI_LINE_EDIT_MID], m))
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return -1;
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m->x = *x;
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m->y = y;
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if (rem_mid && a.i + 1 == n_mid)
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m->w = rem_mid;
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else
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m->w = mid_w;
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sprite_sort(m);
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*x += m->w;
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}
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}
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else
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return -1;
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return 0;
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}
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static int render_right(const short x, const short y)
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{
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sprite_get_or_ret(s, -1);
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if (sprite_clone(&refs[GUI_LINE_EDIT_RIGHT], s))
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return -1;
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s->x = x;
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s->y = y;
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sprite_sort(s);
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return 0;
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}
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static int render(const struct gui_common *const g)
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{
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const struct gui_line_edit *const l = (const struct gui_line_edit *)g;
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short x, y;
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gui_coords(&l->common, &x, &y);
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if (render_left(l, &x, y)
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|| render_mid(l, &x, y)
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|| render_right(x, y))
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return -1;
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return 0;
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}
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static void get_dim(const struct gui_common *const g,
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short *const w, short *const h)
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{
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struct gui_line_edit *const l = (struct gui_line_edit *)g;
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*w = l->w;
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*h = refs->h;
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}
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static void on_char(const char ch, void *const user)
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{
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struct gui_line_edit *const l = user;
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if (l->i + 1 < l->sz)
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l->text[l->i++] = ch;
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}
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static void on_erase(void *const user)
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{
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struct gui_line_edit *const l = user;
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if (l->i)
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l->text[--l->i] = '\0';
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}
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static int update(struct gui_common *const g,
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const union peripheral *const p, const struct camera *const c,
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struct input *const in)
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{
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struct gui_line_edit *const l = (struct gui_line_edit *)g;
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if (gui_pressed(&l->common, in, p, c, l->w, refs->h))
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{
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l->focus = true;
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*in = (const struct input)
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{
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.cb = on_char,
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.erase = on_erase,
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.user = l
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};
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}
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else if (l->focus && gui_released(&l->common, p, c, l->w, refs->h))
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{
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l->focus = false;
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if (in->user == l)
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*in = (const struct input){0};
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}
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return 0;
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}
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static void deinit(struct gui_common *const g, struct input *const in)
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{
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struct gui_line_edit *const l = (struct gui_line_edit *)g;
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if (l->focus)
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*in = (const struct input){0};
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}
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void gui_line_edit_init(struct gui_line_edit *const l, char *const buf,
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const size_t sz)
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{
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static const struct gui_common_cb cb =
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{
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.get_dim = get_dim,
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.update = update,
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.render = render,
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.deinit = deinit
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};
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*l = (const struct gui_line_edit)
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{
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.common =
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{
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.cb = &cb
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},
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.text = buf,
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.sz = sz
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};
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gui_label_init(&l->label);
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memset(l->text, '\0', l->sz);
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l->label.common.hcentered = true;
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l->label.common.vcentered = true;
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l->label.text = l->text;
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gui_add_child(&l->common, &l->label.common);
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}
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