void circle(const Point& center, int radius, const Color& color, bool filled)
{
if (filled)
gdImageFilledEllipse(im_, center.x, center.y, radius*2, radius*2, color2gd(color));
else
gdImageArc(im_, center.x, center.y, radius*2, radius*2, 0, 360, color2gd(color));
}
void rectangle(const Point& point1, const Point& point2, const Color& color, bool filled)
{
if (filled)
gdImageFilledRectangle(im_, point1.x, point1.y, point2.x, point2.y, color2gd(color));
else
gdImageRectangle(im_, point1.x, point1.y, point2.x, point2.y, color2gd(color));
}
void pixel(const Point& point, const Color& color)
{
if (scaled_) // might actually need more than one pixel
{
// gd rectangle is inclusive, so find scaled pixel just outside and back off
Point p1(SCALEX(point.x),SCALEY(point.y));
Point p2(SCALEX(point.x+1),SCALEY(point.y+1)); // far edge of rectangle of 1x1 logical pixels
if (p2.x > p1.x)
p2.x--;
if (p2.y > p1.y)
p2.y--;
gdImageFilledRectangle(im_,p1.x,p1.y,p2.x,p2.y,color2gd(color));
}
else
gdImageSetPixel(im_, point.x, point.y, color2gd(color));
}
void string(const std::string& text, const Point& point, const Color& color, Size size, int align)
{
// copy text into gd-friendly (unsigned char) buffer
vector<unsigned char> buffer;
copy(text.begin(), text.end(), back_inserter(buffer));
buffer.push_back('\0');
// choose font
gdFontPtr font;
switch (size)
{
case Tiny:
font = gdFontGetTiny();
break;
case Small:
font = gdFontGetSmall();
break;
case MediumBold:
font = gdFontGetMediumBold();
break;
case Large:
font = gdFontGetLarge();
break;
case Giant:
font = gdFontGetGiant();
break;
default:
throw runtime_error("[ImageImpl::string()] This isn't happening.");
}
// calculate position
Point position = point;
int length = (int)text.size() * font->w;
int height = font->h;
if (align & CenterX) position.x -= length/2;
else if (align & Right) position.x -= length;
if (align & CenterY) position.y -= height/2;
else if (align & Bottom) position.y -= height;
// draw the string
gdImageString(im_, font, position.x, position.y, &buffer[0], color2gd(color));
}
void line(const Point& point1, const Point& point2, const Color& color)
{
gdImageLine(im_, SCALEX(point1.x), SCALEY(point1.y), SCALEX(point2.x), SCALEY(point2.y), color2gd(color));
}
void circle(const Point& center, int radius, const Color& color, bool filled)
{
if (filled)
gdImageFilledEllipse(im_, SCALEX(center.x), SCALEY(center.y), SCALER(radius*2), SCALER(radius*2), color2gd(color));
else
gdImageArc(im_, SCALEX(center.x), SCALEY(center.y), SCALER(radius*2), SCALER(radius*2), 0, 360, color2gd(color));
}
void line(const Point& point1, const Point& point2, const Color& color)
{
gdImageLine(im_, point1.x, point1.y, point2.x, point2.y, color2gd(color));
}
void pixel(const Point& point, const Color& color)
{
gdImageSetPixel(im_, point.x, point.y, color2gd(color));
}
