void BufferStorePartlyRoundedRectVertices(GG::GL2DVertexBuffer& buffer, const GG::Pt& ul,
const GG::Pt& lr, int radius, bool ur_round,
bool ul_round, bool ll_round, bool lr_round)
{
const double PI = 3.141594;
buffer.store(lr.x, ul.y + radius);
if (ur_round)
BufferStoreCircleArcVertices(buffer, GG::Pt(lr.x - 2 * radius, ul.y),
GG::Pt(lr.x, ul.y + 2 * radius), 0.0, PI / 2.0, false);
else
buffer.store(lr.x, ul.y);
if (ul_round)
BufferStoreCircleArcVertices(buffer, ul, GG::Pt(ul.x + 2 * radius, ul.y + 2 * radius),
PI / 2.0, PI, false);
else
buffer.store(ul.x, ul.y);
if (ll_round)
BufferStoreCircleArcVertices(buffer, GG::Pt(ul.x, lr.y - 2 * radius),
GG::Pt(ul.x + 2 * radius, lr.y),
PI, 3.0 * PI / 2.0, false);
else
buffer.store(ul.x, lr.y);
if (lr_round)
BufferStoreCircleArcVertices(buffer, GG::Pt(lr.x - 2 * radius, lr.y - 2 * radius),
lr, 3.0 * PI / 2.0, 0.0, false);
else
buffer.store(lr.x, lr.y);
buffer.store(lr.x, ul.y + radius);
}
void CircleArc(const GG::Pt& ul, const GG::Pt& lr, double theta1, double theta2,
bool filled_shape)
{
//std::cout << "CircleArc ul: " << ul << " lr: " << lr << " theta1: " << theta1 << " theta2: " << theta2 << " filled: " << filled_shape << std::flush << std::endl;
GG::GL2DVertexBuffer vert_buf;
vert_buf.reserve(50); // max number that BufferStoreCircleArcVertices might add
BufferStoreCircleArcVertices(vert_buf, ul, lr, theta1, theta2, filled_shape, 0, true);
//glDisable(GL_TEXTURE_2D);
glPushClientAttrib(GL_CLIENT_ALL_ATTRIB_BITS);
glEnableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
vert_buf.activate();
if (filled_shape)
glDrawArrays(GL_TRIANGLE_FAN, 0, vert_buf.size());
else
glDrawArrays(GL_LINE_STRIP, 0, vert_buf.size());
glPopClientAttrib();
//glEnable(GL_TEXTURE_2D);
}
void CircleArc(const GG::Pt& ul, const GG::Pt& lr, double theta1, double theta2, bool filled_shape) {
GG::GL2DVertexBuffer vert_buf;
vert_buf.reserve(50); // max number that BufferStoreCircleArcVertices might add
BufferStoreCircleArcVertices(vert_buf, ul, lr, theta1, theta2, filled_shape, 0, true);
//glDisable(GL_TEXTURE_2D);
glPushClientAttrib(GL_CLIENT_ALL_ATTRIB_BITS);
glEnableClientState(GL_VERTEX_ARRAY);
vert_buf.activate();
if (filled_shape)
glDrawArrays(GL_TRIANGLE_FAN, 0, vert_buf.size());
else
glDrawArrays(GL_LINE_STRIP, 0, vert_buf.size());
glPopClientAttrib();
//glEnable(GL_TEXTURE_2D);
}
