277 lines
9.1 KiB
C++
277 lines
9.1 KiB
C++
/****************************************************************************
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* MeshLab o o *
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* A versatile mesh processing toolbox o o *
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* _ O _ *
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* Copyright(C) 2008 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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/****************************************************************************
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History
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$Log: not supported by cvs2svn $
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Revision 1.1 2008/03/02 16:44:18 benedetti
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moved ActiveCoordinateFrame to its own files
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****************************************************************************/
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#include <GL/glew.h>
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#include <wrap/gl/math.h>
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#include <wrap/gl/space.h>
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#include <wrap/gl/addons.h>
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#include "activecoordinateframe.h"
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using namespace vcg;
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ActiveCoordinateFrame::ActiveCoordinateFrame(float size)
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:MovableCoordinateFrame(size),manipulator(NULL),drawmoves(true),
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drawrotations(true),move_button(Trackball::BUTTON_RIGHT),
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rotate_button(Trackball::BUTTON_LEFT),x_modifier(Trackball::BUTTON_NONE),
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y_modifier(Trackball::KEY_CTRL),z_modifier(Trackball::KEY_SHIFT),
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x_axis(1,0,0),y_axis(0,1,0),z_axis(0,0,1),rot_snap_rad(0.0f),mov_snap(0.0f),
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movx(move_button | x_modifier),movy(move_button | y_modifier),
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movz(move_button | z_modifier),rotx(rotate_button | x_modifier),
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roty(rotate_button | y_modifier),rotz(rotate_button | z_modifier)
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{
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manipulator=new Trackball();
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Update();
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}
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ActiveCoordinateFrame::~ActiveCoordinateFrame()
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{
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if(manipulator!=NULL) {
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delete manipulator;
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manipulator=NULL;
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}
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}
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void ActiveCoordinateFrame::Render(QGLWidget* glw)
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{
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glPushMatrix();
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manipulator->radius=size;
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manipulator->center=position;
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manipulator->GetView();
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manipulator->Apply();
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MovableCoordinateFrame::Render(glw);
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// got nothing to draw
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if(!drawmoves && !drawrotations){
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glPopMatrix();
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return;
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}
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int current_mode=manipulator->current_button;
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bool rotating=(current_mode==rotx)||(current_mode==roty)||(current_mode==rotz);
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bool moving=(current_mode==movx)||(current_mode==movy)||(current_mode==movz);
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// maybe got something to draw
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glPushAttrib(GL_ALL_ATTRIB_BITS);
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glDisable(GL_LIGHTING);
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glDisable(GL_TEXTURE_2D);
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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glEnable(GL_LINE_SMOOTH);
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glEnable(GL_POINT_SMOOTH);
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QString message("this should never be seen");
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char axis_name;
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float verse;
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if(current_mode==x_modifier){
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glColor(xcolor); message = QString("move or rotate on X axis");
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} else if(current_mode==y_modifier){
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glColor(ycolor); message = QString("move or rotate on Y axis");
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} else if(current_mode==z_modifier){
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glColor(zcolor); message = QString("move or rotate on Z axis");
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} else
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if(rotating && drawrotations){ // draw a rotation
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Point3f axis, arc_point;
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float angle;
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manipulator->track.rot.ToAxis(angle,axis);
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angle = -angle;
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if(current_mode==rotx){
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verse=((axis+x_axis).Norm()<1?-1:1);
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glColor(xcolor); axis_name='x'; arc_point=y_axis*(size*0.8);
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} else if(current_mode==roty) {
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verse=((axis+y_axis).Norm()<1?-1:1);
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glColor(ycolor); axis_name='y'; arc_point=z_axis*(size*0.8);
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} else if(current_mode==rotz) {
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verse=((axis+z_axis).Norm()<1?-1:1);
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glColor(zcolor); axis_name='z'; arc_point=x_axis*(size*0.8);
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} else assert(0);
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// normalizing rotation between -180 and 180 degrees
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float sign = ((angle*verse)<0) ? -1 : 1;
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float abs_angle = (angle<0) ? -angle : angle;
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angle = sign * ( (abs_angle>M_PI) ? 2*M_PI-abs_angle : abs_angle );
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axis = axis * verse;
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message = QString("rotated %1 deg around %2")
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.arg(((angle*180.0)/M_PI),5,'f',3)
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.arg(axis_name);
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Quaternionf arc_rot;
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arc_rot.FromAxis(angle/18.0,axis);
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glBegin(GL_POLYGON);
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glVertex(position);
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glVertex(position+arc_point);
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for(int i=0;i<18;i++){
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arc_point = arc_rot.Rotate(arc_point);
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glVertex(position+arc_point);
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}
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glEnd();
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} else if(moving && drawmoves){ // draw a traslation
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Point3f ntra=manipulator->track.tra;
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ntra.Normalize();
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if(current_mode==movx){
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verse=((ntra+x_axis).Norm()<1?-1:1);
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glColor(xcolor); axis_name='x';
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}else if(current_mode==movy){
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verse=((ntra+y_axis).Norm()<1?-1:1);
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glColor(ycolor); axis_name='y';
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}else if(current_mode==movz){
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verse=((ntra+z_axis).Norm()<1?-1:1);
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glColor(zcolor); axis_name='z';
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}else assert(0);
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message = QString("moved %1 units along %2")
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.arg(verse*manipulator->track.tra.Norm(),5,'f',3)
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.arg(axis_name);
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Point3f old_pos = position-manipulator->track.tra;
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glLineWidth(2*linewidth);
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glPointSize(4*linewidth);
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glBegin(GL_LINES);
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glVertex(position);
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glVertex(old_pos);
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glEnd();
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glBegin(GL_POINTS);
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glVertex(old_pos);
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glEnd();
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} else { // got nothing to draw
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glPopAttrib();
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glPopMatrix();
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return;
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}
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// draw message below cursor
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font.setBold(true);
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font.setPixelSize(12);
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QPoint cursor=glw->mapFromGlobal(glw->cursor().pos());
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glw->renderText(cursor.x()+16,cursor.y()+16,message,font);
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glPopAttrib();
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glPopMatrix();
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}
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void ActiveCoordinateFrame::Reset(bool reset_position,bool reset_alignment)
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{
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MovableCoordinateFrame::Reset(reset_position, reset_alignment);
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Update();
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manipulator->Reset();
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}
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void ActiveCoordinateFrame::SetPosition(const Point3f newpos)
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{
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MovableCoordinateFrame::SetPosition(newpos);
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Update();
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manipulator->Reset();
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}
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void ActiveCoordinateFrame::SetRotation(const Quaternionf newrot)
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{
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MovableCoordinateFrame::SetRotation(newrot);
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Update();
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manipulator->Reset();
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}
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void ActiveCoordinateFrame::AlignWith(const Point3f primary,const Point3f secondary,const char c1,const char c2)
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{
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MovableCoordinateFrame::AlignWith(primary,secondary,c1,c2);
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Update();
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manipulator->Reset();
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}
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void ActiveCoordinateFrame::MouseDown(int x, int y, /*Button*/ int button)
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{
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Move(manipulator->track);
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manipulator->Reset();
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manipulator->MouseDown(x,y,button);
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}
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void ActiveCoordinateFrame::MouseMove(int x, int y)
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{
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manipulator->MouseMove(x,y);
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}
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void ActiveCoordinateFrame::MouseUp(int x, int y, /*Button */ int button)
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{
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Move(manipulator->track);
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manipulator->Reset();
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manipulator->MouseUp(x, y, button);
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}
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void ActiveCoordinateFrame::ButtonUp(int button)
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{
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Move(manipulator->track);
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manipulator->Reset();
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manipulator->ButtonUp((Trackball::Button) button);
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}
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void ActiveCoordinateFrame::ButtonDown(int button)
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{
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Move(manipulator->track);
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manipulator->Reset();
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manipulator->ButtonDown((Trackball::Button) button);
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}
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void ActiveCoordinateFrame::SetSnap(float rot_deg)
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{
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assert((rot_deg>=0.0)&&(rot_deg<=180));
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rot_snap_rad=rot_deg*M_PI/180.0;
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Update();
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}
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void ActiveCoordinateFrame::Move(const Similarityf track)
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{
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MovableCoordinateFrame::Move(track);
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Update();
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}
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void ActiveCoordinateFrame::Update()
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{
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movx=(move_button | x_modifier);
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movy=(move_button | y_modifier);
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movz=(move_button | z_modifier);
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rotx=(rotate_button | x_modifier);
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roty=(rotate_button | y_modifier);
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rotz=(rotate_button | z_modifier);
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Point3f p=position;
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Quaternionf r=Inverse(rotation);
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x_axis=r.Rotate(Point3f(1,0,0));
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y_axis=r.Rotate(Point3f(0,1,0));
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z_axis=r.Rotate(Point3f(0,0,1));
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manipulator->ClearModes();
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manipulator->modes[0] = NULL;
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manipulator->modes[movx] = new AxisMode(p,x_axis);
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manipulator->modes[movy] = new AxisMode(p,y_axis);
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manipulator->modes[movz] = new AxisMode(p,z_axis);
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manipulator->modes[rotx] = new CylinderMode(p,x_axis,rot_snap_rad);
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manipulator->modes[roty] = new CylinderMode(p,y_axis,rot_snap_rad);
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manipulator->modes[rotz] = new CylinderMode(p,z_axis,rot_snap_rad);
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manipulator->SetCurrentAction();
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}
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