C++ Text::clear方法代码示例

void Party::displayPartyStats(SDL_Renderer *renderer) {
    SDL_Color black = {0, 0, 0};
    Text healthA = Text(A.getName() + " health: " + std::to_string(A.getHP()), black, renderer, 160, 100);
    healthA.update();
    Text healthB = Text(B.getName() + " health: " + std::to_string(B.getHP()), black, renderer, 350, 100);
    healthB.update();
    Text healthC = Text(C.getName() + " health: " + std::to_string(C.getHP()), black, renderer, 540, 100);
    healthC.update();
    healthA.clear();
    healthB.clear();
    healthC.clear();
}

TEST_F( OpenDDLCommonTest, clearTextTest ) {
    Text *theText = createTestText();
    ASSERT_TRUE( ddl_nullptr != theText );

    theText->clear();
    EXPECT_EQ( 0, theText->m_len );
    EXPECT_TRUE( ddl_nullptr == theText->m_buffer );
}

//.........这里部分代码省略.........
    /* Shader initialization. */
    Shader::processShader(&vert_shader_id, "assets/shader.vert", GL_VERTEX_SHADER);
    Shader::processShader(&frag_shader_id, "assets/shader.frag", GL_FRAGMENT_SHADER);

    /* Create a program object that we will attach the fragment and vertex shader to. */
    program_id = GL_CHECK(glCreateProgram());

    /* Attach the shaders. */
    GL_CHECK(glAttachShader(program_id, vert_shader_id));
    GL_CHECK(glAttachShader(program_id, frag_shader_id));

    /* Link the program object. */
    GL_CHECK(glLinkProgram(program_id));

    /* Indicates the link operation on program was successful. */
    GL_CHECK(glGetProgramiv(program_id, GL_LINK_STATUS, &link_status));

    if (link_status != GL_TRUE)
    {
        fprintf(stderr, "Linking a program object has failed.\n");
        exit(-1);
    }

    /* The program object has been successfully linked. Let's use it. */
    GL_CHECK(glUseProgram(program_id));

    /* Retrieve uniform location for "viewMat" uniform defined in vertex shader. */
    location_viewMat = GL_CHECK(glGetUniformLocation(program_id, "viewMat"));

    GL_CHECK(glEnable(GL_BLEND));
    GL_CHECK(glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA));

    Text* text = new Text("assets/", window_width, window_height);
    text->clear();
    text->addString(0, 0, "Skybox Sample", 255, 255, 0, 255);

    /* Rendering loop to draw the scene starts here. */
    bool shouldContinueTheLoop = true;

    while (shouldContinueTheLoop)
    {
        /* If something happened to the window, leave the loop. */
        if (platform->checkWindow() != Platform::WINDOW_IDLE)
        {
            shouldContinueTheLoop = false;
        }

        WithRobot::EulerAngle euler_angle = sensor.get_data().euler_angle;

        angle_X  = -euler_angle.pitch; // y
        angle_Y  =  euler_angle.yaw;   // z
        angle_Z  = -euler_angle.roll;  // x

        /* Construct quaternions for X, Y and Z axes. */
        Q_X = construct_quaternion(1.0f, 0.0f, 0.0f, angle_X);
        Q_Y = construct_quaternion(0.0f, 1.0f, 0.0f, angle_Y);
        Q_Z = construct_quaternion(0.0f, 0.0f, 1.0f, angle_Z);

        // Y->X->Z
        /* Obtain the resultant quaternion. */
        Q_XZ  = multiply_quaternions(Q_X, Q_Z);
        Q_YXZ = multiply_quaternions(Q_Y, Q_XZ);

        /* Compute a modelview matrix. Model matrix is a unit matrix. */
        construct_modelview_matrix(Q_YXZ, model_view_matrix);