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Rotate gizmo rendering

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This commit is contained in:
Enrico Turri 2018-06-14 10:00:59 +02:00
parent 3a19b81cef
commit bc5640eef4
2 changed files with 157 additions and 29 deletions
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158
xs/src/slic3r/GUI/GLGizmo.cpp
View file

@ -10,6 +10,10 @@
namespace Slic3r {
namespace GUI {
const float GLGizmoBase::BaseColor[3] = { 1.0f, 1.0f, 1.0f };
const float GLGizmoBase::HighlightColor[3] = { 1.0f, 0.38f, 0.0f };
const float GLGizmoBase::GrabberHalfSize = 2.0f;
GLGizmoBase::GLGizmoBase()
: m_state(Off)
{
@ -49,6 +53,35 @@ void GLGizmoBase::render(const BoundingBoxf3& box) const
on_render(box);
}
void GLGizmoBase::_render_square(const Pointf3& center) const
{
float min_x = (float)center.x - GrabberHalfSize;
float max_x = (float)center.x + GrabberHalfSize;
float min_y = (float)center.y - GrabberHalfSize;
float max_y = (float)center.y + GrabberHalfSize;
::glDisable(GL_CULL_FACE);
::glBegin(GL_TRIANGLES);
::glVertex3f((GLfloat)min_x, (GLfloat)min_y, 0.0f);
::glVertex3f((GLfloat)max_x, (GLfloat)min_y, 0.0f);
::glVertex3f((GLfloat)max_x, (GLfloat)max_y, 0.0f);
::glVertex3f((GLfloat)max_x, (GLfloat)max_y, 0.0f);
::glVertex3f((GLfloat)min_x, (GLfloat)max_y, 0.0f);
::glVertex3f((GLfloat)min_x, (GLfloat)min_y, 0.0f);
::glEnd();
::glEnable(GL_CULL_FACE);
}
const float GLGizmoRotate::Offset = 5.0f;
const unsigned int GLGizmoRotate::CircleResolution = 64;
const unsigned int GLGizmoRotate::ScaleStepsCount = 60;
const float GLGizmoRotate::ScaleStepRad = 2.0f * (float)PI / GLGizmoRotate::ScaleStepsCount;
const unsigned int GLGizmoRotate::ScaleLongEvery = 5;
const float GLGizmoRotate::ScaleLongTooth = 2.0f;
const float GLGizmoRotate::ScaleShortTooth = 1.0f;
const unsigned int GLGizmoRotate::SnapRegionsCount = 8;
const float GLGizmoRotate::GrabberOffset = 5.0f;
GLGizmoRotate::GLGizmoRotate()
: GLGizmoBase()
, m_angle_x(0.0f)
@ -78,11 +111,105 @@ bool GLGizmoRotate::on_init()
void GLGizmoRotate::on_render(const BoundingBoxf3& box) const
{
std::cout << "GLGizmoRotate::render()" << std::endl;
::glDisable(GL_LIGHTING);
::glDisable(GL_DEPTH_TEST);
const Pointf3& size = box.size();
const Pointf3& center = box.center();
float radius = Offset + ::sqrt(sqr(0.5f * size.x) + sqr(0.5f * size.y));
::glLineWidth(2.0f);
::glColor3fv(BaseColor);
_render_circle(center, radius);
_render_scale(center, radius);
_render_snap_radii(center, radius);
_render_reference_radius(center, radius);
_render_grabber(center, radius);
}
void GLGizmoRotate::_render_circle(const Pointf3& center, float radius) const
{
::glBegin(GL_LINE_LOOP);
for (unsigned int i = 0; i < ScaleStepsCount; ++i)
{
float angle = (float)i * ScaleStepRad;
float x = center.x + ::cos(angle) * radius;
float y = center.y + ::sin(angle) * radius;
::glVertex3f((GLfloat)x, (GLfloat)y, 0.0f);
}
::glEnd();
}
void GLGizmoRotate::_render_scale(const Pointf3& center, float radius) const
{
float out_radius_long = radius + ScaleLongTooth;
float out_radius_short = radius + ScaleShortTooth;
::glBegin(GL_LINES);
for (unsigned int i = 0; i < ScaleStepsCount; ++i)
{
float angle = (float)i * ScaleStepRad;
float cosa = ::cos(angle);
float sina = ::sin(angle);
float in_x = center.x + cosa * radius;
float in_y = center.y + sina * radius;
float out_x = (i % ScaleLongEvery == 0) ? center.x + cosa * out_radius_long : center.x + cosa * out_radius_short;
float out_y = (i % ScaleLongEvery == 0) ? center.y + sina * out_radius_long : center.y + sina * out_radius_short;
::glVertex3f((GLfloat)in_x, (GLfloat)in_y, 0.0f);
::glVertex3f((GLfloat)out_x, (GLfloat)out_y, 0.0f);
}
::glEnd();
}
void GLGizmoRotate::_render_snap_radii(const Pointf3& center, float radius) const
{
float step_deg = 2.0f * (float)PI / (float)SnapRegionsCount;
float in_radius = radius / 3.0f;
float out_radius = 2.0f * in_radius;
::glBegin(GL_LINES);
for (unsigned int i = 0; i < SnapRegionsCount; ++i)
{
float angle = (float)i * step_deg;
float cosa = ::cos(angle);
float sina = ::sin(angle);
float in_x = center.x + cosa * in_radius;
float in_y = center.y + sina * in_radius;
float out_x = center.x + cosa * out_radius;
float out_y = center.y + sina * out_radius;
::glVertex3f((GLfloat)in_x, (GLfloat)in_y, 0.0f);
::glVertex3f((GLfloat)out_x, (GLfloat)out_y, 0.0f);
}
::glEnd();
}
void GLGizmoRotate::_render_reference_radius(const Pointf3& center, float radius) const
{
::glBegin(GL_LINES);
::glVertex3f((GLfloat)center.x, (GLfloat)center.y, 0.0f);
::glVertex3f((GLfloat)center.x + radius, (GLfloat)center.y, 0.0f);
::glEnd();
}
void GLGizmoRotate::_render_grabber(const Pointf3& center, float radius) const
{
float grabber_radius = radius + GrabberOffset;
float x = center.x + ::cos(m_angle_z) * grabber_radius;
float y = center.y + ::sin(m_angle_z) * grabber_radius;
::glBegin(GL_LINES);
::glVertex3f((GLfloat)center.x, (GLfloat)center.y, 0.0f);
::glVertex3f((GLfloat)x, (GLfloat)y, 0.0f);
::glEnd();
::glColor3fv(HighlightColor);
_render_square(Pointf3((coordf_t)x, (coordf_t)y, 0.0));
}
const float GLGizmoScale::Offset = 5.0f;
const float GLGizmoScale::SquareHalfSize = 2.0f;
GLGizmoScale::GLGizmoScale()
: GLGizmoBase()
@ -119,16 +246,16 @@ void GLGizmoScale::on_render(const BoundingBoxf3& box) const
const Pointf3& size = box.size();
const Pointf3& center = box.center();
Pointf3 half_scaled_size = 0.5 * Pointf3((coordf_t)m_scale_x * size.x, (coordf_t)m_scale_y * size.y, (coordf_t)m_scale_z * size.z);
Pointf half_scaled_size = 0.5 * Pointf((coordf_t)m_scale_x * size.x, (coordf_t)m_scale_y * size.y);
coordf_t min_x = center.x - half_scaled_size.x - (coordf_t)Offset;
coordf_t max_x = center.x + half_scaled_size.x + (coordf_t)Offset;
coordf_t min_y = center.y - half_scaled_size.y - (coordf_t)Offset;
coordf_t max_y = center.y + half_scaled_size.y + (coordf_t)Offset;
::glLineWidth(2.0f);
::glBegin(GL_LINE_LOOP);
::glColor3fv(BaseColor);
// draw outline
::glColor3f(1.0f, 1.0f, 1.0f);
::glBegin(GL_LINE_LOOP);
::glVertex3f((GLfloat)min_x, (GLfloat)min_y, 0.0f);
::glVertex3f((GLfloat)max_x, (GLfloat)min_y, 0.0f);
::glVertex3f((GLfloat)max_x, (GLfloat)max_y, 0.0f);
@ -136,30 +263,11 @@ void GLGizmoScale::on_render(const BoundingBoxf3& box) const
::glEnd();
// draw grabbers
::glColor3f(1.0f, 0.38f, 0.0f);
::glDisable(GL_CULL_FACE);
::glColor3fv(HighlightColor);
_render_square(Pointf3(min_x, min_y, 0.0));
_render_square(Pointf3(max_x, min_y, 0.0));
_render_square(Pointf3(max_x, max_y, 0.0));
_render_square(Pointf3(min_x, max_y, 0.0));
::glEnable(GL_CULL_FACE);
}
void GLGizmoScale::_render_square(const Pointf3& center) const
{
float min_x = (float)center.x - SquareHalfSize;
float max_x = (float)center.x + SquareHalfSize;
float min_y = (float)center.y - SquareHalfSize;
float max_y = (float)center.y + SquareHalfSize;
::glBegin(GL_TRIANGLES);
::glVertex3f((GLfloat)min_x, (GLfloat)min_y, 0.0f);
::glVertex3f((GLfloat)max_x, (GLfloat)min_y, 0.0f);
::glVertex3f((GLfloat)max_x, (GLfloat)max_y, 0.0f);
::glVertex3f((GLfloat)max_x, (GLfloat)max_y, 0.0f);
::glVertex3f((GLfloat)min_x, (GLfloat)max_y, 0.0f);
::glVertex3f((GLfloat)min_x, (GLfloat)min_y, 0.0f);
::glEnd();
}
} // namespace GUI

28
xs/src/slic3r/GUI/GLGizmo.hpp
View file

@ -12,6 +12,11 @@ namespace GUI {
class GLGizmoBase
{
protected:
static const float BaseColor[3];
static const float HighlightColor[3];
static const float GrabberHalfSize;
public:
enum EState
{
@ -44,10 +49,22 @@ public:
protected:
virtual bool on_init() = 0;
virtual void on_render(const BoundingBoxf3& box) const = 0;
void _render_square(const Pointf3& center) const;
};
class GLGizmoRotate : public GLGizmoBase
{
static const float Offset;
static const unsigned int CircleResolution;
static const unsigned int ScaleStepsCount;
static const float ScaleStepRad;
static const unsigned int ScaleLongEvery;
static const float ScaleLongTooth;
static const float ScaleShortTooth;
static const unsigned int SnapRegionsCount;
static const float GrabberOffset;
float m_angle_x;
float m_angle_y;
float m_angle_z;
@ -58,12 +75,18 @@ public:
protected:
virtual bool on_init();
virtual void on_render(const BoundingBoxf3& box) const;
private:
void _render_circle(const Pointf3& center, float radius) const;
void _render_scale(const Pointf3& center, float radius) const;
void _render_snap_radii(const Pointf3& center, float radius) const;
void _render_reference_radius(const Pointf3& center, float radius) const;
void _render_grabber(const Pointf3& center, float radius) const;
};
class GLGizmoScale : public GLGizmoBase
{
static const float Offset;
static const float SquareHalfSize;
float m_scale_x;
float m_scale_y;
@ -75,9 +98,6 @@ public:
protected:
virtual bool on_init();
virtual void on_render(const BoundingBoxf3& box) const;
private:
void _render_square(const Pointf3& center) const;
};
} // namespace GUI