mirror of
https://github.com/zserge/fenster.git
synced 2025-07-17 09:16:12 +03:00
106 lines
3.3 KiB
C
106 lines
3.3 KiB
C
#ifdef EMSCRIPTEN
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#include "fenster-emscripten.h"
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#else
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#include "fenster.h"
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#endif
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#define W 320
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#define H 240
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static void fenster_rect(struct fenster *f, int x, int y, int w, int h,
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uint32_t c) {
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for (int row = 0; row < h; row++) {
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for (int col = 0; col < w; col++) {
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fenster_pixel(f, x + col, y + row) = c;
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}
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}
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}
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// clang-format off
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static uint16_t font5x3[] = {0x0000,0x2092,0x002d,0x5f7d,0x279e,0x52a5,0x7ad6,0x0012,0x4494,0x1491,0x017a,0x05d0,0x1400,0x01c0,0x0400,0x12a4,0x2b6a,0x749a,0x752a,0x38a3,0x4f4a,0x38cf,0x3bce,0x12a7,0x3aae,0x49ae,0x0410,0x1410,0x4454,0x0e38,0x1511,0x10e3,0x73ee,0x5f7a,0x3beb,0x624e,0x3b6b,0x73cf,0x13cf,0x6b4e,0x5bed,0x7497,0x2b27,0x5add,0x7249,0x5b7d,0x5b6b,0x3b6e,0x12eb,0x4f6b,0x5aeb,0x388e,0x2497,0x6b6d,0x256d,0x5f6d,0x5aad,0x24ad,0x72a7,0x6496,0x4889,0x3493,0x002a,0xf000,0x0011,0x6b98,0x3b79,0x7270,0x7b74,0x6750,0x95d6,0xb9ee,0x5b59,0x6410,0xb482,0x56e8,0x6492,0x5be8,0x5b58,0x3b70,0x976a,0xcd6a,0x1370,0x38f0,0x64ba,0x3b68,0x2568,0x5f68,0x54a8,0xb9ad,0x73b8,0x64d6,0x2492,0x3593,0x03e0};
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// clang-format on
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static void fenster_text(struct fenster *f, int x, int y, char *s, int scale,
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uint32_t c) {
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while (*s) {
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char chr = *s++;
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if (chr > 32) {
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uint16_t bmp = font5x3[chr - 32];
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for (int dy = 0; dy < 5; dy++) {
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for (int dx = 0; dx < 3; dx++) {
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if (bmp >> (dy * 3 + dx) & 1) {
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fenster_rect(f, x + dx * scale, y + dy * scale, scale, scale, c);
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}
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}
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}
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}
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x = x + 4 * scale;
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}
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}
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/* ============================================================
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* A small example demostrating keymaps/keycodes:
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* - On all platforms keys usually correspond to upper-case ASCII
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* - Enter code is 10, Tab is 9, Backspace is 8, Escape is 27
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* - Delete is 127, Space is 32
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* - Modifiers are: Ctrl=1, Shift=2, Ctrl+Shift=3
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*
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* This demo prints currently pressed keys with modifiers.
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* ============================================================ */
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static int run() {
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uint32_t buf[W * H] = {0};
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struct fenster f = {
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.title = "Press any key...",
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.width = W,
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.height = H,
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.buf = buf,
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};
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fenster_open(&f);
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int64_t now = fenster_time();
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while (fenster_loop(&f) == 0) {
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int has_keys = 0;
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char s[32];
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char *p = s;
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for (int i = 0; i < 128; i++) {
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if (f.keys[i]) {
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has_keys = 1;
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*p++ = i;
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}
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}
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*p = '\0';
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fenster_rect(&f, 0, 0, W, H, 0);
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/* draw mouse "pointer" */
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if (f.x > 5 && f.y > 5 && f.x < f.width - 5 && f.y < f.height - 5) {
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fenster_rect(&f, f.x - 3, f.y - 3, 6, 6, f.mouse ? 0xffffff : 0xff0000);
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}
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fenster_text(&f, 8, 8, s, 4, 0xffffff);
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if (has_keys) {
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if (f.mod & 1) {
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fenster_text(&f, 8, 40, "Ctrl", 4, 0xffffff);
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}
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if (f.mod & 2) {
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fenster_text(&f, 8, 80, "Shift", 4, 0xffffff);
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}
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}
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if (f.keys[27]) {
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break;
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}
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int64_t time = fenster_time();
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if (time - now < 1000 / 60) {
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fenster_sleep(time - now);
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}
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now = time;
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}
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fenster_close(&f);
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return 0;
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}
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#if defined(_WIN32)
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int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR pCmdLine,
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int nCmdShow) {
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(void)hInstance, (void)hPrevInstance, (void)pCmdLine, (void)nCmdShow;
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return run();
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}
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#else
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int main() { return run(); }
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#endif
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