GdkPixbuf *render_get_colour_scale(size_t w, size_t h, int scale)
{
guchar *data;
size_t x, y;
int max;
data = malloc(3*w*h);
if ( data == NULL ) return NULL;
max = h;
for ( y=0; y<h; y++ ) {
double r, g, b;
int val;
val = y;
render_scale(val, max, scale, &r, &g, &b);
data[3*( 0+w*(h-1-y) )+0] = 0;
data[3*( 0+w*(h-1-y) )+1] = 0;
data[3*( 0+w*(h-1-y) )+2] = 0;
for ( x=1; x<w; x++ ) {
data[3*( x+w*(h-1-y) )+0] = 255*r;
data[3*( x+w*(h-1-y) )+1] = 255*g;
data[3*( x+w*(h-1-y) )+2] = 255*b;
}
}
return gdk_pixbuf_new_from_data(data, GDK_COLORSPACE_RGB, FALSE, 8,
w, h, w*3, render_free_data, NULL);
}
void GLGizmoRotate::on_render(const Selection& selection) const
{
if (!m_grabbers[0].enabled)
return;
const BoundingBoxf3& box = selection.get_bounding_box();
std::string axis;
switch (m_axis)
{
case X: { axis = "X"; break; }
case Y: { axis = "Y"; break; }
case Z: { axis = "Z"; break; }
}
if (!m_dragging && (m_hover_id == 0))
set_tooltip(axis);
else if (m_dragging)
set_tooltip(axis + ": " + format((float)Geometry::rad2deg(m_angle), 4) + "\u00B0");
else
{
m_center = box.center();
m_radius = Offset + box.radius();
m_snap_coarse_in_radius = m_radius / 3.0f;
m_snap_coarse_out_radius = 2.0f * m_snap_coarse_in_radius;
m_snap_fine_in_radius = m_radius;
m_snap_fine_out_radius = m_radius * (1.0f + ScaleLongTooth);
}
glsafe(::glEnable(GL_DEPTH_TEST));
glsafe(::glPushMatrix());
transform_to_local(selection);
glsafe(::glLineWidth((m_hover_id != -1) ? 2.0f : 1.5f));
glsafe(::glColor3fv((m_hover_id != -1) ? m_drag_color : m_highlight_color));
render_circle();
if (m_hover_id != -1)
{
render_scale();
render_snap_radii();
render_reference_radius();
}
glsafe(::glColor3fv(m_highlight_color));
if (m_hover_id != -1)
render_angle();
render_grabber(box);
render_grabber_extension(box, false);
glsafe(::glPopMatrix());
}
static GdkPixbuf *render_panel(float *hdr, int scale, double max, int w, int h)
{
guchar *data;
int x, y;
/* Rendered (colourful) version */
data = malloc(3*w*h);
if ( data == NULL ) return NULL;
/* These x,y coordinates are measured relative to the bottom-left
* corner */
for ( y=0; y<h; y++ ) {
for ( x=0; x<w; x++ ) {
double val;
double r, g, b;
val = hdr[x+w*y];
if ( val > -INFINITY ) {
render_scale(val, max, scale, &r, &g, &b);
/* Stuff inside square brackets makes this pixel go to
* the expected location in the pixbuf (which measures
* from the top-left corner */
data[3*( x+w*y )+0] = 255*r;
data[3*( x+w*y )+1] = 255*g;
data[3*( x+w*y )+2] = 255*b;
} else {
data[3*( x+w*y )+0] = 30;
data[3*( x+w*y )+1] = 20;
data[3*( x+w*y )+2] = 0;
}
}
}
/* Create the pixbuf from the 8-bit display data */
return gdk_pixbuf_new_from_data(data, GDK_COLORSPACE_RGB, FALSE, 8,
w, h, w*3, render_free_data, NULL);
}
