graphics/printing/system-font/source/main.c

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <3ds.h>
#include <citro2d.h>
 
static const char teststring[] =
    "Hello World - now with citro2d!\n"
    "The quick brown fox jumps over the lazy dog.\n"
    "\n"
    "En français: Vous ne devez pas éteindre votre console.\n"
    "日本語文章を見せるのも出来ますよ。\n"
    "Un poco de texto en español nunca queda mal.\n"
    "Πού είναι η τουαλέτα;\n"
    "Я очень рад, ведь я, наконец, возвращаюсь домой\n";
 
C2D_TextBuf g_staticBuf, g_dynamicBuf;
C2D_Text g_staticText[4];
 
static void sceneInit(void)
{
    // Create two text buffers: one for static text, and another one for
    // dynamic text - the latter will be cleared at each frame.
    g_staticBuf  = C2D_TextBufNew(4096); // support up to 4096 glyphs in the buffer
    g_dynamicBuf = C2D_TextBufNew(4096);
 
    // Parse the static text strings
    C2D_TextParse(&g_staticText[0], g_staticBuf, teststring);
    C2D_TextParse(&g_staticText[1], g_staticBuf, "I am red skinny text!");
    C2D_TextParse(&g_staticText[2], g_staticBuf, "I am blue fat text!");
    C2D_TextParse(&g_staticText[3], g_staticBuf, "I am justified text!");
 
    // Optimize the static text strings
    C2D_TextOptimize(&g_staticText[0]);
    C2D_TextOptimize(&g_staticText[1]);
    C2D_TextOptimize(&g_staticText[2]);
    C2D_TextOptimize(&g_staticText[3]);
}
 
static void sceneRender(float size)
{
    // Clear the dynamic text buffer
    C2D_TextBufClear(g_dynamicBuf);
 
    // Draw static text strings
    C2D_DrawText(&g_staticText[0], 0, 8.0f, 8.0f, 0.5f, size, size);
    C2D_DrawText(&g_staticText[1], C2D_AtBaseline | C2D_WithColor, 16.0f, 210.0f, 0.5f, 0.5f, 0.75f, C2D_Color32f(1.0f,0.0f,0.0f,1.0f));
    C2D_DrawText(&g_staticText[2], C2D_AtBaseline | C2D_WithColor | C2D_AlignRight, 384.0f, 210.0f, 0.5f, 0.75f, 0.5f, C2D_Color32f(0.0f,0.0f,1.0f,0.625f));
    C2D_DrawText(&g_staticText[3], C2D_AtBaseline | C2D_AlignJustified | C2D_WordWrap, 100.0f, 170.0f, 0.5f, 0.75f, 0.75f, 200.0f);
 
    // Generate and draw dynamic text
    char buf[160];
    C2D_Text dynText;
    snprintf(buf, sizeof(buf), "Current text size: %f (Use  to change)", size);
    C2D_TextParse(&dynText, g_dynamicBuf, buf);
    C2D_TextOptimize(&dynText);
    C2D_DrawText(&dynText, C2D_AlignCenter, 200.0f, 220.0f, 0.5f, 0.5f, 0.5f);
}
 
static void sceneExit(void)
{
    // Delete the text buffers
    C2D_TextBufDelete(g_dynamicBuf);
    C2D_TextBufDelete(g_staticBuf);
}
 
int main()
{
    // Initialize the libs
    gfxInitDefault();
    C3D_Init(C3D_DEFAULT_CMDBUF_SIZE);
    C2D_Init(C2D_DEFAULT_MAX_OBJECTS);
    C2D_Prepare();
 
    // Create screen
    C3D_RenderTarget* top = C2D_CreateScreenTarget(GFX_TOP, GFX_LEFT);
 
    // Initialize the scene
    sceneInit();
 
    float size = 0.5f;
 
    // Main loop
    while (aptMainLoop())
    {
        hidScanInput();
 
        // Respond to user input
        u32 kDown = hidKeysDown();
        u32 kHeld = hidKeysHeld();
        if (kDown & KEY_START)
            break; // break in order to return to hbmenu
 
        if (kHeld & KEY_L)
            size -= 1.0f/128;
        else if (kHeld & KEY_R)
            size += 1.0f/128;
        else if (kHeld & KEY_X)
            size = 0.5f;
        else if (kHeld & KEY_Y)
            size = 1.0f;
 
        if (size < 0.25f)
            size = 0.25f;
        else if (size > 2.0f)
            size = 2.0f;
 
        // Render the scene
        C3D_FrameBegin(C3D_FRAME_SYNCDRAW);
        C2D_TargetClear(top, C2D_Color32(0x68, 0xB0, 0xD8, 0xFF));
        C2D_SceneBegin(top);
        sceneRender(size);
        C3D_FrameEnd(0);
    }
 
    // Deinitialize the scene
    sceneExit();
 
    // Deinitialize the libs
    C2D_Fini();
    C3D_Fini();
    gfxExit();
    return 0;
}