void Counter::draw()
{
if (!_init)
{
_init = true;
char buffer[] = {0, 0};
for ( int i = 0; i < 10; i++ )
{
buffer[0] = '0' + i;
_digitTex[i] = CreateTextureWithLabelUseFont(buffer, 52.0, "Arial Bold", DIGIT_WIDTH, _h, 0 );
}
_rightTex = CreateTextureWithLabelUseFont( _rightText, 52.0, "Arial Bold", TEXT_WIDTH, _h, -1 );
}
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, _rightTex);
float w0 = TEXT_WIDTH + 15 + 4 * (DIGIT_WIDTH - 3);
float x0 = _x + (_w - w0) / 2.0;
DrawQuadInverted( x0 + w0 - TEXT_WIDTH + 15, _y, TEXT_WIDTH, _h );
int n = lrint(floor(_number));
int digitCount = 1;
if (_number >= 1) digitCount += lrint(floor(log10(_number)));
for (int i = 0; i < digitCount; i++ )
{
int r = n % 10;
n /= 10;
glBindTexture( GL_TEXTURE_2D, _digitTex[r] );
DrawQuadInverted( x0 + w0 - TEXT_WIDTH - (i + 1)*(DIGIT_WIDTH - 3), _y, DIGIT_WIDTH, _h );
}
glBindTexture(GL_TEXTURE_2D, 0);
glDisable(GL_TEXTURE_2D);
}
void SmoothMeter::draw()
{
int value = (int)lrint(_smoothValue);
float angle = angleForValue(_smoothValue, _max) * 180 / M_PI;
if (0 == _backgroundTexture)
{
glGenTextures(1, &_backgroundTexture);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, _backgroundTexture);
initBackground(_w, _h, _max);
}
if (0 == _needleTexture)
{
glGenTextures(1, &_needleTexture);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, _needleTexture);
initNeedle(_w, _h, _max);
}
if (0 == _legendTexture)
{
_legendTexture = CreateTextureWithLabel(_legend, 36, false, LEGEND_WIDTH, LEGEND_HEIGHT);
}
glEnable(GL_TEXTURE_RECTANGLE_ARB);
glMatrixMode(GL_TEXTURE);
glPushMatrix();
glLoadIdentity();
glScalef(_w, _h, 1);
glMatrixMode(GL_MODELVIEW);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, _backgroundTexture);
DrawQuad(_w* -0.5, _h* -0.5, _w, _h);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, _needleTexture);
glPushMatrix();
glRotatef(angle, 0, 0, 1);
DrawQuad(_w* -0.5, _h* -0.5, _w, _h);
glPopMatrix();
glMatrixMode(GL_TEXTURE);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
glDisable(GL_TEXTURE_RECTANGLE_ARB);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, _legendTexture);
DrawQuadInverted(-0.5 * LEGEND_WIDTH, -220, LEGEND_WIDTH, LEGEND_HEIGHT);
// FIXME purge unused values, or don't use the global cache
glBindTexture(GL_TEXTURE_2D, value_texture_for(value));
DrawQuadInverted(-0.5 * VALUE_WIDTH, -110, VALUE_WIDTH, VALUE_HEIGHT);
glBindTexture(GL_TEXTURE_2D, 0);
glDisable(GL_TEXTURE_2D);
}
