path: root/tests/text.c

#include "test.h"

static const char* txt = "The quick brown fox jumps over the lazy dog";
static const char* txt2 = "いろはにほへと ちりぬるを わかよたれそ つねならむ";

void print(VkvgContext ctx, float penY, uint32_t size) {
    vkvg_set_font_size(ctx, size);
    vkvg_move_to(ctx, 10, penY);
    vkvg_show_text(ctx, txt);
}
void print_boxed(VkvgContext ctx, const char* text, float penX, float penY, uint32_t size) {
    vkvg_set_font_size(ctx, size);
    vkvg_text_extents_t te = {0};
    vkvg_text_extents(ctx, text, &te);
    vkvg_font_extents_t fe = {0};
    vkvg_font_extents(ctx, &fe);

    vkvg_move_to(ctx, penX, penY);
    vkvg_rectangle(ctx, penX, penY - fe.ascent, te.width, fe.height);
    vkvg_set_source_rgb(ctx, 0.2f, 0.2f, 0.7f);
    vkvg_fill(ctx);

    vkvg_move_to(ctx, penX, penY);
    vkvg_set_source_rgb(ctx, 1, 1, 1);
    vkvg_show_text(ctx, text);
}
void print_unboxed(VkvgContext ctx, const char* text, float penX, float penY, uint32_t size) {
    vkvg_set_font_size(ctx, size);
    vkvg_move_to(ctx, penX, penY);
    vkvg_set_source_rgb(ctx, 1, 1, 1);
    vkvg_show_text(ctx, text);
}
void test2() {
    VkvgContext ctx = vkvg_create(surf);

    vkvg_color_t bg = {0.0, 0.0, 0.0, 1};
    vkvg_color_t fg = {1.0f, 1.0f, 1.0f, 1};

    vkvg_set_source_rgba(ctx, bg.r, bg.g, bg.b, bg.a);
    vkvg_paint(ctx);
    vkvg_set_source_rgba(ctx, fg.r, fg.g, fg.b, fg.a);
    // vkvg_select_font_face(ctx, "droid");
    vkvg_select_font_face(ctx, "times");

    float penY = 10.f;

    for (uint32_t size = 4; size < 39; size++) {
        print(ctx, (float)penY, size);
        penY += size;
    }

    vkvg_destroy(ctx);
}
void test1() {
    VkvgContext ctx = vkvg_create(surf);

    vkvg_color_t fg = {0.0, 0.0, 0.0, 1};
    vkvg_color_t bg = {0.9f, 0.9f, 0.9f, 1};

    vkvg_set_source_rgba(ctx, bg.r, bg.g, bg.b, bg.a);
    vkvg_paint(ctx);
    vkvg_set_source_rgba(ctx, fg.r, fg.g, fg.b, fg.a);

    uint32_t size = 8;
    float    penY = 100.f;

    vkvg_set_font_size(ctx, size);

    vkvg_select_font_face(ctx, "mono");
    vkvg_move_to(ctx, 100.f, penY);
    vkvg_show_text(ctx, txt);

    penY += 1.2f * size;

    vkvg_select_font_face(ctx, "times");
    vkvg_move_to(ctx, 100.f, penY);
    vkvg_show_text(ctx, txt);

    penY += 1.2f * size;

    vkvg_select_font_face(ctx, "arial:italic");
    vkvg_move_to(ctx, 100.f, penY);
    vkvg_show_text(ctx, txt);

    vkvg_destroy(ctx);
}
void test() {
    VkvgContext ctx = vkvg_create(surf);

    // vkvg_color_t fg = {0.2,0.2,0.2,1};
    vkvg_color_t fg = {0.0, 0.0, 0.0, 1};
    vkvg_color_t bg = {1.0f, 1.0f, 1.0f, 1};
    vkvg_set_source_rgba(ctx, bg.r, bg.g, bg.b, bg.a);
    vkvg_paint(ctx);

    float size = 19;
    float penY = 50;
    float penX = 10;

    /*vkvg_rectangle(ctx,30,0,100,400);
    vkvg_clip(ctx);*/

    // vkvg_select_font_face(ctx, "/usr/local/share/fonts/DroidSansMono.ttf");
    // vkvg_select_font_face(ctx, "/usr/share/fonts/truetype/unifont/unifont.ttf");

    vkvg_set_font_size(ctx, 12);
    vkvg_select_font_face(ctx, "droid");
    vkvg_font_extents_t fe;
    vkvg_font_extents(ctx, &fe);
    vkvg_move_to(ctx, penX, penY);
    vkvg_set_source_rgba(ctx, fg.r, fg.g, fg.b, fg.a);
    vkvg_text_extents_t te;
    vkvg_text_extents(ctx, "abcdefghijk", &te);
    vkvg_show_text(ctx, "abcdefghijk");
    penX += te.x_advance;
    vkvg_move_to(ctx, penX, penY);
    vkvg_show_text(ctx, "*abcdefghijk2");
    penY += 2.f * size;

    vkvg_select_font_face(ctx, "times");
    vkvg_move_to(ctx, penX, penY);
    vkvg_show_text(ctx, "abcdefghijklmnopqrstuvwxyz");
    penY += size;

    vkvg_select_font_face(ctx, "droid");
    vkvg_move_to(ctx, penX, penY);
    vkvg_show_text(ctx, "lmnopqrstuvwxyz123456789");
    penY += size;

    vkvg_select_font_face(ctx, "times:bold");
    vkvg_move_to(ctx, penX, penY);
    vkvg_show_text(ctx, "abcdefghijklmnopqrstuvwxyz");
    penY += size;

    vkvg_select_font_face(ctx, "droid");
    vkvg_move_to(ctx, penX, penY);
    vkvg_show_text(ctx, "ABCDEFGHIJKLMNOPQRSTUVWXYZ");
    penY += size;

    vkvg_select_font_face(ctx, "arial:italic");
    vkvg_move_to(ctx, penX, penY);
    vkvg_show_text(ctx, "abcdefghijklmnopqrstuvwxyz");
    penY += size;

    vkvg_select_font_face(ctx, "arial");
    vkvg_move_to(ctx, penX, penY);
    vkvg_show_text(ctx, "ABCDEFGHIJKLMNOPQRSTUVWXYZ");
    penY += size;
    vkvg_move_to(ctx, penX, penY);
    vkvg_show_text(ctx, "this is a test");
    penY += size;
    vkvg_move_to(ctx, penX, penY);
    vkvg_show_text(ctx, "this is another test to see if label is working");
    penY += size;

    vkvg_select_font_face(ctx, "mono");
    vkvg_move_to(ctx, penX, penY);
    vkvg_show_text(ctx, "ABCDEFGHIJKLMNOPQRSTUVWXYZ");
    penY += size;

    vkvg_move_to(ctx, 80, 400);
    vkvg_show_text(ctx, "Ленивый рыжий кот");

    vkvg_move_to(ctx, 150, 250);
    vkvg_show_text(ctx, "test string é€");
    vkvg_move_to(ctx, 150, 300);
    vkvg_show_text(ctx, "كسول الزنجبيل القط");
    vkvg_move_to(ctx, 150, 350);
    vkvg_show_text(ctx, "懶惰的姜貓");

    // vkvg_show_text (ctx,"ABCDABCD");
    // vkvg_show_text (ctx,"j");

    vkvg_destroy(ctx);
}
void single_font_and_size() {
    VkvgContext ctx = vkvg_create(surf);
    vkvg_clear(ctx);
    VkvgFont font = vkvg_font_create(device, "mono", 20);
    for (uint32_t i = 0; i < test_size; i++) {
        randomize_color(ctx);
        float x = rndf() * test_width;
        float y = rndf() * test_height;
        vkvg_set_font(ctx, font);
        vkvg_move_to(ctx, x, y);
        vkvg_show_text(ctx, "This is a test string!");
    }
    vkvg_destroy(ctx);
    vkvg_font_destroy(font);
}
void simple_text() {
    VkvgContext ctx = vkvg_create(surf);

    vkvg_set_source_rgb(ctx, 0, 0, 0);
    vkvg_paint(ctx);
    vkvg_set_source_rgb(ctx, 1, 1, 1);

    VkvgFont mono = vkvg_font_create(device, "mono", 12);
    VkvgFont norm = vkvg_font_create_from_file(device, "data/Proto-Sinaitic15.ttf", 0, 24);
    vkvg_set_font (ctx, mono);
    vkvg_move_to(ctx, 20, 50);
    vkvg_show_text(ctx, "hwhy");

    vkvg_move_to(ctx, 100, 50);
    vkvg_show_text(ctx, "efgh");

    vkvg_move_to(ctx, 180, 50);
    vkvg_show_text(ctx, "ijkl");

    vkvg_set_font (ctx, norm);
    vkvg_move_to(ctx, 20, 100);
    vkvg_show_text(ctx, "ABCD");

    /*vkvg_load_font_from_path(ctx, "data/DancingScript-Regular.ttf", "dancing");
    print_boxed(ctx, "abcdefghijklmnopqrstuvwxyz", 20, 60, 20);
    print_boxed(ctx, "ABC", 20, 160, 60);
    vkvg_select_font_face(ctx, "mono");
    print_boxed(ctx, "This is a test string!", 20, 250, 20);
    print_boxed(ctx, "ANOTHER ONE TO CHECK..", 20, 350, 20);*/

    vkvg_flush(ctx);

    vkvg_font_destroy(mono);
    /*vkvg_font_destroy(norm);*/
    vkvg_destroy(ctx);
}
void variable_text() {
    VkvgContext ctx = vkvg_create(surf);
    vkvg_paint(ctx);
    vkvg_set_source_rgb(ctx, 1, 1, 1);

    VkvgFont noto = vkvg_font_create(device, "Noto Sans JP:fontvariations=wght=150", 30);

    vkvg_set_font (ctx, noto);
    vkvg_move_to(ctx, 20, 50);
    vkvg_show_text(ctx, txt2);

    vkvg_font_destroy(noto);

    noto = vkvg_font_create(device, "Noto Sans JP:fontvariations=wght=900", 30);
    vkvg_set_font (ctx, noto);
    vkvg_move_to(ctx, 20, 150);
    vkvg_show_text(ctx, txt2);

    vkvg_font_destroy(noto);

    noto = vkvg_font_create(device, "Cantarell:fontvariations=wght=900", 30);
    vkvg_set_font (ctx, noto);
    vkvg_move_to(ctx, 20, 200);
    vkvg_show_text(ctx, txt);

    vkvg_font_destroy(noto);


    vkvg_destroy(ctx);
}
void font_file_path() {
    VkvgContext ctx = vkvg_create(surf);

    vkvg_set_source_rgb(ctx, 0, 0, 0);
    vkvg_paint(ctx);
    vkvg_set_source_rgb(ctx, 1, 1, 1);
    vkvg_load_font_from_path(ctx, "data/DancingScript-Regular.ttf", 50);
    print_boxed(ctx, "This is a test string!", 50, 20, 12);
    print_boxed(ctx, "This is a test string!", 50, 50, 20);
    print_boxed(ctx, "ANOTHER ONE TO CHECK..", 50, 80, 20);
    print_boxed(ctx, "this is another string to check if ligature are well set", 10, 120, 20);
    vkvg_destroy(ctx);
}

void random_size() {
    VkvgContext ctx = vkvg_create(surf);
    vkvg_clear(ctx);
    vkvg_select_font_face(ctx, "mono");
    for (uint32_t i = 0; i < test_size; i++) {
        randomize_color(ctx);
        float    x = rndf() * test_width;
        float    y = rndf() * test_height;
        uint32_t c = (uint32_t)(rndf() * 120) + 1;

        vkvg_set_font_size(ctx, c);
        vkvg_move_to(ctx, x, y);
        vkvg_show_text(ctx, "This is a test string!");
    }
    vkvg_destroy(ctx);
}
const char* const fonts[] = {"mono", "droid", "times", "arial", "times:bold"};

void random_font_and_size() {
    VkvgContext ctx = vkvg_create(surf);
    vkvg_clear(ctx);
    //vkvg_log_level = VKVG_LOG_FONT;

    for (uint32_t i = 0; i < test_size; i++) {
        randomize_color(ctx);
        float    x = rndf() * test_width;
        float    y = rndf() * test_height;
        uint32_t c = (uint32_t)(rndf() * 80) + 1;
        uint32_t f = (uint32_t)(rndf() * 4);
        VkvgFont font = vkvg_font_create(device, fonts[f], c);
        vkvg_set_font(ctx,font);
        vkvg_move_to(ctx, x, y);
        vkvg_show_text(ctx, "This is a test string!");
    }
    vkvg_destroy(ctx);

}
void proto_sinaitic() {
    VkvgContext ctx = vkvg_create(surf);

    vkvg_set_source_rgb(ctx, 0, 0, 0);
    vkvg_paint(ctx);
    vkvg_set_source_rgb(ctx, 1, 1, 1);

    vkvg_load_font_from_path(ctx, "data/Proto-Sinaitic15.ttf", 50);
    print_boxed(ctx, "hwhy", 100, 150, 60);

    vkvg_destroy(ctx);
}
int main(int argc, char* argv[]) {
    no_test_size = true;
    vkh_log_level = VKVG_LOG_INFO;
    PERFORM_TEST(simple_text, argc, argv);
    PERFORM_TEST(variable_text, argc, argv);
    PERFORM_TEST(font_file_path, argc, argv);
    PERFORM_TEST(single_font_and_size, argc, argv);
    PERFORM_TEST(random_size, argc, argv);
    PERFORM_TEST(random_font_and_size, argc, argv);
    PERFORM_TEST(test, argc, argv);
    PERFORM_TEST(test1, argc, argv);
    PERFORM_TEST(test2, argc, argv);
    PERFORM_TEST(proto_sinaitic, argc, argv);

    return 0;
}