vtkQtGLWidget.C 7.3 KB
Newer Older
hrchilds's avatar
hrchilds committed
1 2
/*****************************************************************************
*
3
* Copyright (c) 2000 - 2010, Lawrence Livermore National Security, LLC
hrchilds's avatar
hrchilds committed
4
* Produced at the Lawrence Livermore National Laboratory
5
* LLNL-CODE-400124
hrchilds's avatar
hrchilds committed
6 7
* All rights reserved.
*
8
* This file is  part of VisIt. For  details, see https://visit.llnl.gov/.  The
hrchilds's avatar
hrchilds committed
9 10 11 12 13 14 15 16 17 18
* full copyright notice is contained in the file COPYRIGHT located at the root
* of the VisIt distribution or at http://www.llnl.gov/visit/copyright.html.
*
* Redistribution  and  use  in  source  and  binary  forms,  with  or  without
* modification, are permitted provided that the following conditions are met:
*
*  - Redistributions of  source code must  retain the above  copyright notice,
*    this list of conditions and the disclaimer below.
*  - Redistributions in binary form must reproduce the above copyright notice,
*    this  list of  conditions  and  the  disclaimer (as noted below)  in  the
19 20 21
*    documentation and/or other materials provided with the distribution.
*  - Neither the name of  the LLNS/LLNL nor the names of  its contributors may
*    be used to endorse or promote products derived from this software without
hrchilds's avatar
hrchilds committed
22 23 24 25 26
*    specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT  HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR  IMPLIED WARRANTIES, INCLUDING,  BUT NOT  LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND  FITNESS FOR A PARTICULAR  PURPOSE
27 28 29
* ARE  DISCLAIMED. IN  NO EVENT  SHALL LAWRENCE  LIVERMORE NATIONAL  SECURITY,
* LLC, THE  U.S.  DEPARTMENT OF  ENERGY  OR  CONTRIBUTORS BE  LIABLE  FOR  ANY
* DIRECT,  INDIRECT,   INCIDENTAL,   SPECIAL,   EXEMPLARY,  OR   CONSEQUENTIAL
hrchilds's avatar
hrchilds committed
30 31 32 33 34 35 36 37
* DAMAGES (INCLUDING, BUT NOT  LIMITED TO, PROCUREMENT OF  SUBSTITUTE GOODS OR
* SERVICES; LOSS OF  USE, DATA, OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER
* CAUSED  AND  ON  ANY  THEORY  OF  LIABILITY,  WHETHER  IN  CONTRACT,  STRICT
* LIABILITY, OR TORT  (INCLUDING NEGLIGENCE OR OTHERWISE)  ARISING IN ANY  WAY
* OUT OF THE  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
*****************************************************************************/
whitlocb's avatar
whitlocb committed
38
#include <QtCore>
hrchilds's avatar
hrchilds committed
39

40
#include <GL/glew.h>
hrchilds's avatar
hrchilds committed
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57
#include <vtkQtGLWidget.h>
#include <vtkQtRenderWindow.h>
#include <vtkQtRenderWindowInteractor.h>

// ****************************************************************************
// Method: vtkQtGLWidget::vtkQtGLWidget
//
// Purpose: 
//   Constructor for the vtkQtGLWidget class.
//
// Arguments:
//   parent : The parent vtkQtRenderWindow widget.
//
// Programmer: Brad Whitlock
// Creation:   Mon Jan 27 17:32:28 PST 2003
//
// Modifications:
whitlocb's avatar
whitlocb committed
58 59 60
//   Brad Whitlock, Thu May  8 16:21:37 PDT 2008
//   Qt 4.
//
hrchilds's avatar
hrchilds committed
61 62
// ****************************************************************************

63
vtkQtGLWidget::vtkQtGLWidget(QWidget *parent, vtkQtRenderWindow *rw) : QGLWidget(parent)
hrchilds's avatar
hrchilds committed
64
{
65
    renWin = rw;
hrchilds's avatar
hrchilds committed
66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128
    lineSmoothing = false;
    interactor = 0;
}

// ****************************************************************************
// Method: vtkQtGLWidget::initializeGL
//
// Purpose: 
//   Initializes the OpenGL context.
//
// Programmer: Brad Whitlock
// Creation:   Mon Jan 27 17:32:28 PST 2003
//
// Modifications:
//   
// ****************************************************************************

void
vtkQtGLWidget::initializeGL()
{   
    glMatrixMode( GL_MODELVIEW );
    
    glDepthFunc( GL_LEQUAL );
    glEnable( GL_DEPTH_TEST );
    
    glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
    
    // initialize blending for transparency
    glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
    glEnable(GL_BLEND);
   
    if (lineSmoothing)
    {
        glEnable(GL_LINE_SMOOTH);
    }
    else 
    {
        glDisable(GL_LINE_SMOOTH);
    }
    
    glEnable( GL_NORMALIZE );
    glAlphaFunc(GL_GREATER,0);
}

// ****************************************************************************
// Method: vtkQtGLWidget::paintGL
//
// Purpose: 
//   This method is called when the OpenGL stuff in this widget needs to be
//   redrawn. Since the parent vtkQtRenderWindow contains all of that stuff,
//   we tell it to render its actors.
//
// Programmer: Brad Whitlock
// Creation:   Mon Jan 27 17:32:28 PST 2003
//
// Modifications:
//   
// ****************************************************************************

void
vtkQtGLWidget::paintGL()
{
    // Tell the parent to render.
129
    renWin->TriggerRender();
hrchilds's avatar
hrchilds committed
130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153
}

// ****************************************************************************
// Method: vtkQtGLWidget::resizeGL
//
// Purpose: 
//   This method is called when the widget changes sizes. We need to tell the
//   parent the sice of the widget so it knows to update the viewport.
//
// Arguments:
//   w : The new width
//   h : The new height
//
// Programmer: Brad Whitlock
// Creation:   Thu Jan 30 10:16:27 PDT 2003
//
// Modifications:
//   
// ****************************************************************************

void
vtkQtGLWidget::resizeGL(int w, int h)
{
    // Tell the parent to render.
154
    renWin->TellGLSize(w, h);
hrchilds's avatar
hrchilds committed
155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202
}

// ****************************************************************************
// Method: vtkQtGLWidget::mousePressEvent
//
// Purpose: 
//   Passes mouse press events to the interactor.
//
// Arguments:
//   me : A pointer to a mouse event.
//
// Programmer: Brad Whitlock
// Creation:   Mon Jan 27 17:32:28 PST 2003
//
// Modifications:
//   
// ****************************************************************************

void
vtkQtGLWidget::mousePressEvent(QMouseEvent *me)
{
    if (interactor)
        interactor->mousePressEvent(me);
}

// ****************************************************************************
// Method: vtkQtGLWidget::mouseReleaseEvent
//
// Purpose: 
//   Passes mouse release events to the interactor.
//
// Arguments:
//   me : A pointer to a mouse event.
//
// Programmer: Brad Whitlock
// Creation:   Mon Jan 27 17:32:28 PST 2003
//
// Modifications:
//   
// ****************************************************************************

void
vtkQtGLWidget::mouseReleaseEvent(QMouseEvent *me)
{
    if (interactor)
        interactor->mouseReleaseEvent(me);
}

203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225
// ****************************************************************************
// Method: vtkQtGLWidget::wheelEvent
//
// Purpose: 
//   Passes wheel events to the interactor.
//
// Arguments:
//   we : A pointer to a wheel event.
//
// Programmer: Gunther H. Weber
// Creation:   Fri Aug  3 17:56:01 PDT 2007
//
// Modifications:
//   
// ****************************************************************************

void
vtkQtGLWidget::wheelEvent(QWheelEvent *we)
{
    if (interactor)
        interactor->wheelEvent(we);
}

hrchilds's avatar
hrchilds committed
226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251
// ****************************************************************************
// Method: vtkQtGLWidget::keyPressEvent
//
// Purpose: 
//   Passes key press events to the interactor.
//
// Arguments:
//   ke : A pointer to a key press event object.
//
// Programmer: Brad Whitlock
// Creation:   Mon Jan 27 17:32:28 PST 2003
//
// Modifications:
//   
// ****************************************************************************

void
vtkQtGLWidget::keyPressEvent(QKeyEvent *ke)
{
    if (interactor)
        interactor->keyPressEvent(ke);
}

QSizePolicy vtkQtGLWidget::sizePolicy() const { return QSizePolicy( QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding); }
QSize vtkQtGLWidget::sizeHint() const { return QSize(200, 200); }