VeniVidiVici
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nvboard
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keyboard: highlight pressing key

This commit is contained in:
Zihao Yu 2024-01-09 19:05:40 +08:00
parent 93f0b95beb
commit d8fd0f12f9
2 changed files with 24 additions and 15 deletions
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2
src/font.cpp
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@ -33,7 +33,7 @@ void init_font(SDL_Renderer *renderer) {
SDL_Surface* get_font_surface(const char *str) {
SDL_Color fg = {.r = 0x00, .g = 0x00, .b = 0x00 };
SDL_Surface *s = TTF_RenderText_Solid_Wrapped(font, str, fg, 0);
SDL_Surface *s = TTF_RenderText_Blended_Wrapped(font, str, fg, 0);
if (s == NULL) {
printf("error = %s\n", SDL_GetError());
assert(s != NULL);

37
src/keyboard.cpp
View File

@ -1,8 +1,6 @@
#include <nvboard.h>
#include <keyboard.h>
#include <pins.h>
#include <configs.h>
#include "at_scancode.h"
#include <string>
typedef struct {
SDL_Texture *t_up, *t_down;
@ -22,14 +20,21 @@ KEYBOARD::KEYBOARD(SDL_Renderer *rend, int cnt, int init_val, int ct):
void KEYBOARD::push_key(uint8_t sdl_key, bool is_keydown){
uint8_t at_key = keys[sdl_key].map0;
Key *e = &keys[sdl_key];
uint8_t at_key = e->map0;
if(at_key == 0xe0){
all_keys.push(0xe0);
at_key = keys[sdl_key].map1;
at_key = e->map1;
}
if(!is_keydown) all_keys.push(0xf0);
all_keys.push(at_key);
is_kb_idle = false;
if (e->pressing != is_keydown) {
e->pressing = is_keydown;
SDL_RenderCopy(get_renderer(), (is_keydown ? e->t_down : e->t_up), NULL, &e->rect);
set_redraw();
}
}
void KEYBOARD::update_state(){
@ -68,10 +73,8 @@ void KEYBOARD::update_state(){
}
static SDL_Surface* new_key_shape(int w, int h) {
SDL_Surface *s = SDL_CreateRGBSurface(0, w, h, 32, 0, 0, 0, 0);
uint32_t black = SDL_MapRGB(s->format, 0, 0, 0);
uint32_t white = SDL_MapRGB(s->format, 0xff, 0xff, 0xff);
SDL_FillRect(s, NULL, white);
SDL_Surface *s = SDL_CreateRGBSurface(0, w, h, 32, 0xff0000, 0x00ff00, 0x0000ff, 0xff000000);
uint32_t black = SDL_MapRGBA(s->format, 0, 0, 0, 0xff);
SDL_Rect r;
r = (SDL_Rect){.x = 0, .y = 0, .w = 1, .h = h}; SDL_FillRect(s, &r, black);
r = (SDL_Rect){.x = 0, .y = 0, .w = w, .h = 1}; SDL_FillRect(s, &r, black);
@ -80,16 +83,21 @@ static SDL_Surface* new_key_shape(int w, int h) {
return s;
}
static SDL_Surface* surdup(SDL_Surface *src) {
SDL_Surface *s = SDL_CreateRGBSurface(0, src->w, src->h, 32, 0, 0, 0, 0);
static SDL_Surface* surdup(SDL_Surface *src, uint32_t bg) {
SDL_PixelFormat *f = src->format;
SDL_Surface *s = SDL_CreateRGBSurface(0, src->w, src->h,
f->BitsPerPixel, f->Rmask, f->Gmask, f->Bmask, f->Amask);
SDL_FillRect(s, NULL, bg);
SDL_BlitSurface(src, NULL, s, NULL);
return s;
}
static SDL_Texture* gen_key_texture(SDL_Renderer *renderer, const char *desc1,
const char *desc2, SDL_Surface *key_shape) {
const char *desc2, SDL_Surface *key_shape, bool is_down) {
std::string desc = std::string(desc1) + '\n' + desc2;
SDL_Surface *s = surdup(key_shape);
uint32_t color_up = SDL_MapRGBA(key_shape->format, 0xf0, 0xf0, 0xf0, 0xff);
uint32_t color_dn = SDL_MapRGBA(key_shape->format, 0xc0, 0xc0, 0xc0, 0xff);
SDL_Surface *s = surdup(key_shape, is_down ? color_dn : color_up);
SDL_Surface *s_desc = get_font_surface(desc.c_str());
SDL_Rect r = { .x = 1, .y = 1 };
SDL_BlitSurface(s_desc, NULL, s, &r);
@ -102,7 +110,8 @@ static SDL_Texture* gen_key_texture(SDL_Renderer *renderer, const char *desc1,
static void init_key_texture(SDL_Renderer *renderer, uint8_t sdl_key,
const char *desc1, const char *desc2, SDL_Surface *key_shape, int x, int y) {
Key *e = &keys[sdl_key];
e->t_up = gen_key_texture(renderer, desc1, desc2, key_shape);
e->t_up = gen_key_texture(renderer, desc1, desc2, key_shape, false);
e->t_down = gen_key_texture(renderer, desc1, desc2, key_shape, true);
e->rect = { .x = x, .y = y, .w = key_shape->w, .h = key_shape->h };
}