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// -*- C++ -*-
//
// Package: Core
// Class : FWTextProjected
//
// Implementation:
// [Notes on implementation]
//
// Original Author: Alja Mrak-Tadel
// Created: Fri Aug 12 01:12:18 CEST 2011
//
// system include files
// user include files
#include <iostream>
#include "Fireworks/Core/interface/FWTextProjected.h"
#include "TEveProjectionManager.h"
#include "TEveTrans.h"
#include "TGLBoundingBox.h"
#include "TGLIncludes.h"
#include "TGLRnrCtx.h"
#include "TGLUtil.h"
#include "TGLCamera.h"
//______________________________________________________________________________
TClass* FWEveText::ProjectedClass(const TEveProjection*) const {
// Virtual from TEveProjectable, returns TEvePointSetProjected class.
return FWEveTextProjected::Class();
}
//______________________________________________________________________________
void FWEveTextProjected::UpdateProjection() {
// printf("update projection \n");
FWEveText& als = *dynamic_cast<FWEveText*>(fProjectable);
TEveTrans* tr = als.PtrMainTrans(kFALSE);
fText = als.GetText();
*fMainColorPtr = als.GetMainColor();
float pos[3];
tr->GetPos(pos);
TEveProjection& proj = *fManager->GetProjection();
proj.ProjectPoint(pos[0], pos[1], pos[2], fDepth);
RefMainTrans().SetPos(pos[0], pos[1], pos[2] + als.m_offsetZ);
}
//==============================================================================
void FWEveTextGL::DirectDraw(TGLRnrCtx& rnrCtx) const {
Int_t fm = fM->GetFontMode();
if (fm == TGLFont::kBitmap || fm == TGLFont::kPixmap || fm == TGLFont::kTexture)
rnrCtx.RegisterFont(fM->GetFontSize(), fM->GetFontFile(), fM->GetFontMode(), fFont);
else
rnrCtx.RegisterFontNoScale(fM->GetFontSize(), fM->GetFontFile(), fM->GetFontMode(), fFont);
// rendering
glPushMatrix();
fFont.PreRender(fM->GetAutoLighting(), fM->GetLighting());
const GLdouble* pm = rnrCtx.RefCamera().RefLastNoPickProjM().CArr();
GLdouble mm[16];
GLint vp[4];
glGetDoublev(GL_MODELVIEW_MATRIX, mm);
glGetIntegerv(GL_VIEWPORT, vp);
fX[0][0] = fX[0][1] = fX[0][2] = 0;
GLdouble x, y, z;
gluProject(fX[0][0], fX[0][1], fX[0][2], mm, pm, vp, &x, &y, &z);
Float_t bbox[6];
fFont.BBox(fM->GetText(), bbox[0], bbox[1], bbox[2], bbox[3], bbox[4], bbox[5]);
gluUnProject(x + bbox[0], y + bbox[1], z, mm, pm, vp, &fX[0][0], &fX[0][1], &fX[0][2]);
gluUnProject(x + bbox[3], y + bbox[1], z, mm, pm, vp, &fX[1][0], &fX[1][1], &fX[1][2]);
gluUnProject(x + bbox[3], y + bbox[4], z, mm, pm, vp, &fX[2][0], &fX[2][1], &fX[2][2]);
gluUnProject(x + bbox[0], y + bbox[4], z, mm, pm, vp, &fX[3][0], &fX[3][1], &fX[3][2]);
glEnable(GL_POLYGON_OFFSET_FILL);
FWEveText* model = (FWEveText*)fM;
double xm = fX[0][0] - model->m_textPad;
double xM = fX[2][0] + model->m_textPad;
double ym = fX[0][1] - model->m_textPad;
double yM = fX[2][1] + model->m_textPad;
// TGLUtil::Color(1016);
if (rnrCtx.ColorSet().Background().GetRed())
TGLUtil::Color(kWhite);
else
TGLUtil::Color(kBlack);
glPolygonOffset(1, 1);
glBegin(GL_POLYGON);
glVertex2d(xm, ym);
glVertex2d(xM, ym);
glVertex2d(xM, yM);
glVertex2d(xm, yM);
glEnd();
TGLUtil::Color(fM->GetMainColor());
if (true) {
glPolygonOffset(0, 0);
glBegin(GL_LINE_LOOP);
glVertex2d(xm, ym);
glVertex2d(xM, ym);
glVertex2d(xM, yM);
glVertex2d(xm, yM);
glEnd();
}
glPolygonOffset(0, 0);
glRasterPos3i(0, 0, 0);
fFont.Render(fM->GetText());
fFont.PostRender();
glPopMatrix();
}
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