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#include "SnakeROIRenderer.h"
#include "IRISException.h"
#include "IRISApplication.h"
#include "GlobalState.h"
#include "SnakeROIModel.h"
#include "SNAPAppearanceSettings.h"
#include "GlobalUIModel.h"
SnakeROIRenderer::SnakeROIRenderer()
{
}
void SnakeROIRenderer::paintGL()
{
// Get some global information
GenericSliceModel *parentModel = m_ParentRenderer->GetModel();
IRISApplication *app = parentModel->GetDriver();
GlobalState *gs = app->GetGlobalState();
SNAPAppearanceSettings *as =
parentModel->GetParentUI()->GetAppearanceSettings();
// Check the current state
assert(m_Model);
if(m_ParentRenderer->IsDrawingZoomThumbnail())
return;
// The region of interest should be in effect
assert(gs->isSegmentationROIValid());
// Compute the corners in slice coordinates
Vector3f corner[2];
m_Model->GetSystemROICorners(corner);
// Check that the current slice is actually within the bounding box
// int slice = m_Parent->m_SliceIndex;
int dim = parentModel->GetSliceDirectionInImageSpace();
int slice = parentModel->GetSliceIndex();
int bbMin = gs->GetSegmentationROI().GetIndex(dim);
int bbMax = bbMin + gs->GetSegmentationROI().GetSize(dim);
// And if so, return without painting anything
if(bbMin > slice || bbMax <= slice)
return;
// Get the line color, thickness and dash spacing
const OpenGLAppearanceElement *elt =
as->GetUIElement(SNAPAppearanceSettings::ROI_BOX);
// Set line properties
glPushAttrib(GL_LINE_BIT | GL_COLOR_BUFFER_BIT);
// Apply the line properties
elt->ApplyLineSettings();
// Start drawing the lines
glBegin(GL_LINES);
// Draw each of the edges
for(unsigned int dir=0;dir<2;dir++)
{
for(unsigned int i=0;i<2;i++)
{
// Select color according to edge state
glColor3dv( m_Model->m_Highlight.Highlighted[dir][i] ?
elt->GetActiveColor().data_block() : elt->GetNormalColor().data_block() );
// Compute the vertices of the edge
Vector2f x0,x1;
m_Model->GetEdgeVertices(dir,i,x0,x1,corner);
// Draw the line
glVertex2f(x0[0],x0[1]);
glVertex2f(x1[0],x1[1]);
}
}
glEnd();
glPopAttrib();
}
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