1 // Copyright (C) 2007-2024 CEA, EDF, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License, or (at your option) any later version.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 // Author : OPEN CASCADE
24 // File: GLViewer_Viewer2d.cxx
25 // Created: November, 2004
26 //#include <GLViewerAfx.h>
28 #include "GLViewer_Viewer2d.h"
29 #include "GLViewer_Object.h"
30 #include "GLViewer_ViewFrame.h"
31 #include "GLViewer_BaseObjects.h"
32 #include "GLViewer_CoordSystem.h"
33 #include "GLViewer_Context.h"
34 #include "GLViewer_Drawer.h"
35 #include "GLViewer_Selector2d.h"
36 #include "GLViewer_ViewPort2d.h"
38 #include "SUIT_Desktop.h"
39 #include "SUIT_ViewWindow.h"
40 #include "SUIT_ViewManager.h"
46 #include <QMouseEvent>
47 #include <QColorDialog>
51 \param title - viewer title
53 GLViewer_Viewer2d::GLViewer_Viewer2d( const QString& title) :
54 GLViewer_Viewer( title )
56 myGLContext = new GLViewer_Context( this );
60 mySelMode = GLViewer_Viewer::Multiple;
68 GLViewer_Viewer2d::~GLViewer_Viewer2d()
71 //delete myGLSketcher;
73 qDeleteAll(myDrawers);
77 myGLContext = nullptr;
79 GLViewer_TexFont::clearTextBases();
82 /*!Create new instance of view window on desktop \a theDesktop.
83 *\retval SUIT_ViewWindow* - created view window pointer.
85 SUIT_ViewWindow* GLViewer_Viewer2d::createView( SUIT_Desktop* theDesktop )
87 return new GLViewer_ViewFrame( theDesktop, this );
91 Adds item for change background color
92 \param thePopup - menu
94 void GLViewer_Viewer2d::addPopupItems( QMenu* thePopup )
96 // CTH8434. "Change background color" menu item is available if there are no selected objects
97 if ( getSelector() == 0 || getSelector()->numSelected() == 0 )
99 if( thePopup->actions().count() > 0 )
100 thePopup->addSeparator();
101 thePopup->addAction( tr( "CHANGE_BGCOLOR" ), this, SLOT( onChangeBgColor() ) );
106 Changes background color
108 void GLViewer_Viewer2d::onChangeBgColor()
110 if( !getActiveView() )
112 GLViewer_ViewPort2d* vp = ( ( GLViewer_ViewPort2d* )getActiveView()->getViewPort() );
114 QColor selColor = QColorDialog::getColor( vp->backgroundColor(), vp );
115 if ( selColor.isValid() ) {
116 vp->setBackgroundColor( selColor );
121 Updates colors for all drawers (does not work)
123 void GLViewer_Viewer2d::updateColors( QColor /*colorH*/, QColor /*colorS*/ )
125 activateAllDrawers( true );
129 Updates rect of global scene by adding new rectangle
130 \param theRect - rectangle
132 void GLViewer_Viewer2d::updateBorders( GLViewer_Rect* theRect )
134 QVector<SUIT_ViewWindow*> views = getViewManager()->getViews();
135 for ( int i = 0, n = views.count(); i < n; i++ )
137 GLViewer_Rect* border = ( ( GLViewer_ViewPort2d* )((GLViewer_ViewFrame*)views[i])->getViewPort() )->getBorder();
139 border->setLeft( qMin( border->left(), theRect->left() ) );
140 border->setRight( qMax( border->right(), theRect->right() ) );
141 border->setBottom( qMin( border->bottom(), theRect->bottom() ) );
142 border->setTop( qMax( border->top(), theRect->top() ) );
147 Recomputes global scene rect
149 void GLViewer_Viewer2d::updateBorders()
151 QVector<SUIT_ViewWindow*> views = getViewManager()->getViews();
153 ObjList anObjects = myGLContext->getObjects();
154 ObjList::Iterator beginIt = anObjects.begin();
155 ObjList::Iterator endIt = anObjects.end();
156 for ( int i = 0, n = views.count(); i < n; i++ )
158 GLViewer_Rect* border = ( ( GLViewer_ViewPort2d* )((GLViewer_ViewFrame*)views[i])->getViewPort() )->getBorder();
161 border->setIsEmpty( true );
162 // initialise border by default values to avoid old values
163 border->setCoords( 0, 0, 0, 0 );
164 for ( ObjList::Iterator it = beginIt; it != endIt; ++it )
166 GLViewer_Object* anObject = *it;
167 GLViewer_Rect* aRect = anObject->getRect();
168 if( !anObject->isSelectable() || !anObject->getVisible() )
171 if( border->isEmpty() )
173 border->setIsEmpty( false );
174 border->setCoords( aRect->left(), aRect->right(), aRect->bottom(), aRect->top() );
178 border->setLeft( qMin( border->left(), aRect->left() ) );
179 border->setRight( qMax( border->right(), aRect->right() ) );
180 border->setBottom( qMin( border->bottom(), aRect->bottom() ) );
181 border->setTop( qMax( border->top(), aRect->top() ) );
188 Redraws all active objects by updating all drawers in all views
190 void GLViewer_Viewer2d::updateAll()
192 if ( !getActiveView() )
195 QVector<SUIT_ViewWindow*> views = getViewManager()->getViews();
196 for ( int i = 0, n = views.count(); i < n; i++ )
197 ( ( GLViewer_ViewPort2d* )( ( GLViewer_ViewFrame* )views[i] )->getViewPort() )->getGLWidget()->updateGL();
201 \param onlyUpdate is passed to method activateAllDrawers drawers
203 void GLViewer_Viewer2d::updateDrawers( GLboolean update, GLfloat /*scX*/, GLfloat /*scY*/ )
205 activateAllDrawers( update );
209 Activates drawers for objects from list \param theObjects only
211 void GLViewer_Viewer2d::activateDrawers( QList<GLViewer_Object*>& theObjects, bool onlyUpdate, GLboolean swap )
213 //cout << "GLViewer_Viewer2d::activateDrawers " << (int)onlyUpdate << " " << (int)swap << endl;
214 QList<GLViewer_Drawer*>::Iterator anIt = myDrawers.begin();
215 QList<GLViewer_Drawer*>::Iterator endDIt = myDrawers.end();
216 for( ; anIt != endDIt; anIt++ )
219 QList<GLViewer_Drawer*> anActiveDrawers;
220 QList<GLViewer_Object*>::Iterator endOIt = theObjects.end();
222 for( QList<GLViewer_Object*>::Iterator oit = theObjects.begin(); oit != endOIt; ++oit )
224 GLViewer_Drawer* aDrawer = (*oit)->getDrawer();
227 anIt = myDrawers.begin();
228 endDIt = myDrawers.end();
230 for( ; anIt != endDIt; anIt++ )
231 if( (*anIt)->getObjectType() == (*oit)->getObjectType() )
233 (*oit)->setDrawer( *anIt );
240 myDrawers.append( (*oit)->createDrawer() );
241 aDrawer = (*oit)->getDrawer();
246 aDrawer->addObject( (*oit) );
248 int aPriority = aDrawer->getPriority();
250 if( anActiveDrawers.indexOf( aDrawer ) != -1 )
253 QList<GLViewer_Drawer*>::Iterator aDIt = anActiveDrawers.begin();
254 QList<GLViewer_Drawer*>::Iterator aDEndIt = anActiveDrawers.end();
255 for( ; aDIt != aDEndIt; ++aDIt )
256 if( (*aDIt)->getPriority() > aPriority )
259 anActiveDrawers.insert( aDIt, aDrawer );
262 QList<GLViewer_Drawer*>::Iterator aDIt = anActiveDrawers.begin();
263 QList<GLViewer_Drawer*>::Iterator aDEndIt = anActiveDrawers.end();
265 QVector<SUIT_ViewWindow*> views = getViewManager()->getViews();
266 for ( int i = 0, n = views.count(); i < n; i++ )
268 float xScale, yScale;
269 GLViewer_ViewPort2d* vp = ( GLViewer_ViewPort2d* )((GLViewer_ViewFrame*)views[i])->getViewPort();
270 vp->getScale( xScale, yScale );
271 vp->getGLWidget()->makeCurrent();
273 for( ; aDIt != aDEndIt; aDIt++ )
275 GLViewer_Drawer* aDrawer = *aDIt;
277 aDrawer->create( xScale, yScale, onlyUpdate );
281 GLViewer_Rect* border = ( ( GLViewer_ViewPort2d* )((GLViewer_ViewFrame*)views[i])->getViewPort() )->getBorder();
282 (*aDIt)->drawRectangle( border, Qt::blue );
284 QString coords = QString::number( border->left() ) + " " + QString::number( border->right() ) + " " +
285 QString::number( border->bottom() ) + " " + QString::number( border->top() );
286 (*aDIt)->drawText( "Border : " + coords, border->left(), border->top() + 10 / yScale,
287 Qt::blue, &QFont( "Courier", 8, QFont::Normal ), 2 );
290 vp->getGLWidget()->swapBuffers();
293 ( ( GLViewer_ViewPort2d* )getActiveView()->getViewPort() )->getGLWidget()->makeCurrent();
297 Activates drawer for \param theObject
299 void GLViewer_Viewer2d::activateDrawer( GLViewer_Object* theObject, bool onlyUpdate, GLboolean swap )
302 aList.append( theObject );
303 activateDrawers( aList, onlyUpdate, swap );
307 \param onlyUpdate is passed to drawers
309 void GLViewer_Viewer2d::activateAllDrawers( bool onlyUpdate, GLboolean swap )
311 if ( !getActiveView() )
314 ObjList anActiveObjs;
315 const ObjList& objs = myGLContext->getObjects();
316 for( ObjList::const_iterator it = objs.begin(); it != objs.end(); ++it )
318 GLViewer_Object* obj = (GLViewer_Object*)(*it);
319 if( obj->getVisible() )
320 anActiveObjs.append( obj );
323 activateDrawers( anActiveObjs, onlyUpdate, swap );
327 Creates set of marker
328 \param theMarkersNum - number of markers
329 \param theMarkersRad - radius of markers
331 void GLViewer_Viewer2d::onCreateGLMarkers( int theMarkersNum, int theMarkersRad )
333 if ( !getActiveView() )
336 GLViewer_MarkerSet* aMarkerSet = new GLViewer_MarkerSet( theMarkersNum, theMarkersRad );
337 getGLContext()->insertObject( aMarkerSet );
339 GLViewer_ViewPort2d* vp = ( GLViewer_ViewPort2d* )getActiveView()->getViewPort();
340 int vpWidth = vp->getWidth();
341 int vpHeight = vp->getHeight();
343 float* aXCoord = new float[ theMarkersNum ];
344 float* anYCoord = new float[ theMarkersNum ];
347 for ( long i = 0; i < theMarkersNum; i++ )
349 aXCoord[i] = cos( PI * (rand() / (GLfloat)RAND_MAX) ) * ((GLfloat)vpWidth / 2.);
350 anYCoord[i] = cos( PI * (rand() / (GLfloat)RAND_MAX) ) * ((GLfloat)vpHeight / 2.);
353 aMarkerSet->setXCoord( aXCoord, theMarkersNum );
354 aMarkerSet->setYCoord( anYCoord, theMarkersNum );
355 aMarkerSet->compute();
357 updateBorders( aMarkerSet->getRect() );
359 activateAllDrawers( false );
360 activateTransform( GLViewer_Viewer::FitAll );
368 \param theAnglesNum - number of angles
369 \param theRadius - radius
370 \param thePolylineNumber - number
372 void GLViewer_Viewer2d::onCreateGLPolyline( int theAnglesNum, int theRadius, int thePolylineNumber )
374 if ( !getActiveView() )
377 GLViewer_ViewPort2d* vp = ( GLViewer_ViewPort2d* )getActiveView()->getViewPort();
378 int vpWidth = vp->getWidth();
379 int vpHeight = vp->getHeight();
381 float* aXCoord = new float[ theAnglesNum ];
382 float* anYCoord = new float[ theAnglesNum ];
384 //srand( ( unsigned )time( NULL ) );
386 for( int j = 0; j < thePolylineNumber; j++)
388 GLViewer_Polyline* aPolyline = new GLViewer_Polyline( theAnglesNum, theRadius );
389 getGLContext()->insertObject( aPolyline );
391 float aXOffset = cos( PI * (rand() / (GLfloat)RAND_MAX) ) * ((GLfloat)vpWidth / 2.);
392 float anYOffset = cos( PI * (rand() / (GLfloat)RAND_MAX) ) * ((GLfloat)vpHeight / 2.);
393 for( int i = 0; i < theAnglesNum; i++ )
395 aXCoord[i] = cos( 2. * PI * i / theAnglesNum ) * theRadius + aXOffset;
396 anYCoord[i] = sin( 2. * PI * i / theAnglesNum ) * theRadius + anYOffset;
399 aPolyline->setHighSelAll( true );
400 aPolyline->setClosed( true );
401 aPolyline->setXCoord( aXCoord, theAnglesNum );
402 aPolyline->setYCoord( anYCoord, theAnglesNum );
403 aPolyline->compute();
405 updateBorders( aPolyline->getRect() );
408 activateAllDrawers( false );
409 activateTransform( GLViewer_Viewer::FitAll );
417 \param theStr - text string
418 \param theTextNumber - number
420 void GLViewer_Viewer2d::onCreateGLText( QString theStr, int theTextNumber )
422 if ( !getActiveView() )
425 if( theTextNumber <= 0 )
428 GLViewer_ViewPort2d* vp = ( GLViewer_ViewPort2d* )getActiveView()->getViewPort();
429 int vpWidth = vp->getWidth();
430 int vpHeight = vp->getHeight();
432 //srand( ( unsigned )time( NULL ) );
434 for( int j = 0; j < theTextNumber; j++)
436 float aXPos = cos( PI * (rand() / (GLfloat)RAND_MAX) ) * ((GLfloat)vpWidth / 2.);
437 float anYPos = cos( PI * (rand() / (GLfloat)RAND_MAX) ) * ((GLfloat)vpHeight / 2.);
438 QColor aColor( 255, 0, 255 );
440 GLViewer_TextObject* aText = new GLViewer_TextObject( theStr, aXPos, anYPos, aColor );
442 getGLContext()->insertObject( aText );
444 updateBorders( aText->getRect() );
447 activateAllDrawers( false );
451 Translates point from global CS to curreent viewer CS
452 \param x, y - co-ordinates to be translated
454 void GLViewer_Viewer2d::transPoint( GLfloat& x, GLfloat& y )
456 if ( !getActiveView() )
459 GLfloat xScale, yScale;
462 GLViewer_ViewPort2d* curvp = ( GLViewer_ViewPort2d* )getActiveView()->getViewPort();
464 curvp->getScale( xScale, yScale );
465 curvp->getPan( xPan, yPan );
467 GLfloat a = curvp->getGLWidget()->getRotationAngle() * PI / 180.;
469 x = ( x - ( GLfloat )curvp->getWidth() / 2 ) / xScale;
470 y = ( -y + ( GLfloat )curvp->getHeight() / 2 ) / yScale;
475 x = x1 * cos(a) + y1 * sin(a);
476 y = -x1 * sin(a) + y1 * cos(a);
483 \return object rect in window CS
484 \param theObject - object
486 QRect* GLViewer_Viewer2d::getWinObjectRect( GLViewer_Object* theObject )
488 if ( !getActiveView() )
491 GLfloat xScale, yScale;
494 GLViewer_ViewPort2d* curvp = ( GLViewer_ViewPort2d* )getActiveView()->getViewPort();
495 GLfloat aWidth = curvp->getWidth();
496 GLfloat aHeight = curvp->getHeight();
499 curvp->getScale( xScale, yScale );
500 curvp->getPan( xPan, yPan );
502 QRect aObjRect = theObject->getRect()->toQRect();
503 float aLeft = aObjRect.left() + xPan, aRight = aObjRect.right() + xPan;
504 float aTop = aObjRect.top() + yPan, aBot = aObjRect.bottom() + yPan;
506 GLfloat anAngle = curvp->getGLWidget()->getRotationAngle() * PI / 180.;
508 QPolygon aPointArray(4);
509 aPointArray[0] = QPoint( (int)(aLeft*cos(anAngle) - aTop*sin(anAngle)),
510 (int)(aLeft*sin(anAngle) + aTop*cos(anAngle)) );
511 aPointArray[1] = QPoint( (int)(aRight*cos(anAngle) - aTop*sin(anAngle)),
512 (int)(aRight*sin(anAngle) + aTop*cos(anAngle)) );
513 aPointArray[2] = QPoint( (int)(aRight*cos(anAngle) - aBot*sin(anAngle)),
514 (int)(aRight*sin(anAngle) + aBot*cos(anAngle)) );
515 aPointArray[3] = QPoint( (int)(aLeft*cos(anAngle) - aBot*sin(anAngle)),
516 (int)(aLeft*sin(anAngle) + aBot*cos(anAngle)) );
518 int aMinLeft = aPointArray[0].x(), aMaxRight = aPointArray[0].x(),
519 aMinTop = aPointArray[0].y(), aMaxBottom = aPointArray[0].y();
520 for( int i = 1; i < 4; i++ )
522 int x = aPointArray[i].x();
523 int y = aPointArray[i].y();
524 aMinLeft = qMin( aMinLeft,x );
525 aMaxRight = qMax( aMaxRight, x );
526 aMinTop = qMin( aMinTop, y );
527 aMaxBottom = qMax( aMaxBottom, y );
530 aLeft = (aMinLeft/* + xPan*/)*xScale + aWidth / 2;
531 aRight = (aMaxRight/* + xPan*/)*xScale + aWidth / 2;
533 aTop = -( (aMaxBottom/* + yPan*/)*yScale - aHeight / 2 );
534 aBot = -( (aMinTop/* + yPan*/)*yScale - aHeight / 2 );
536 QRect* newRect = new QRect( (int)aLeft, (int)aTop, (int)(aRight-aLeft), (int)(aBot-aTop) );
542 Translates rect in window CS to rect in global CS
543 \param theRect - rectangle to be translated
544 \return transformed rect
546 GLViewer_Rect GLViewer_Viewer2d::getGLVRect( const QRect& theRect ) const
548 if ( !getActiveView() )
549 return GLViewer_Rect();
551 GLViewer_ViewPort2d* vp = ( GLViewer_ViewPort2d* )getActiveView()->getViewPort();
554 return GLViewer_Rect();
556 return vp->win2GLV( theRect );
560 Translates rect in global CS to rect in window CS
561 \param theRect - rectangle to be translated
562 \return transformed rect
564 QRect GLViewer_Viewer2d::getQRect( const GLViewer_Rect& theRect ) const
566 if ( !getActiveView() )
569 GLViewer_ViewPort2d* vp = ( GLViewer_ViewPort2d* )getActiveView()->getViewPort();
574 return vp->GLV2win( theRect );
580 GLViewer_Selector* GLViewer_Viewer2d::createSelector()
582 return new GLViewer_Selector2d( this, getGLContext() );
586 \return new Transformer
587 \param type - type of new transformer
589 GLViewer_ViewTransformer* GLViewer_Viewer2d::createTransformer( int type )
591 return new GLViewer_View2dTransformer( this, type );
595 Custom mouse event handler
597 void GLViewer_Viewer2d::onMouseEvent( SUIT_ViewWindow*, QMouseEvent* e )
599 if ( !getActiveView() )
602 //if ( testRotation( e ) )
607 case QEvent::MouseButtonPress :
608 case QEvent::MouseMove :
609 case QEvent::MouseButtonRelease :
610 //if( myGLSketcher->getType() != None )
611 // myGLSketcher->sketch( e );
615 GLViewer_Viewer::onMouseEvent( 0, e );
619 Rotation transformation
621 bool GLViewer_Viewer2d::testRotation( QMouseEvent* e )
623 if ( ( (int)e->button() == GLViewer_View2dTransformer::rotateButton() ) && // todo Qt::MouseButton is unsigned int: comparison of int with uint
624 ( e->type() == QEvent::MouseButtonPress ) &&
625 ( e->modifiers() & GLViewer_ViewTransformer::accelKey() ) )
627 activateTransform( GLViewer_Viewer::Rotate );
634 Inserts text lines as header for file
635 \param aType - file type
636 \param hFile - file instance
638 void GLViewer_Viewer2d::insertHeader( VectorFileType aType, QFile& hFile )
640 if( aType == POST_SCRIPT )
642 QString header = "%!PS-Adobe-3.0\n";
643 header += "%%Creator: OpenCascade 2004\n";
644 header += "%%Title: Our document\n";
645 header += "%%PageOrder: Ascend\n";
646 header += "%%Orientation: Portrait\n";
647 header += "%%LanguageLevel: 2\n";
649 header += "%%Pages: 1\n";
650 header += "%%Page: 1\n\n";
652 hFile.write( header.toLatin1() );
654 else if( aType == HPGL )
656 QString header = "[Esc].(;\n";
657 header += "[Esc].I81;;17:\n";
658 header += "[Esc].N;19:\n";
666 hFile.write( header.toLatin1() );
671 Inserts text lines as ending for file
672 \param aType - file type
673 \param hFile - file instance
675 void GLViewer_Viewer2d::insertEnding( VectorFileType aType, QFile& hFile )
677 if( aType == POST_SCRIPT )
679 QString ending = "showpage\n\n%%EOF";
680 hFile.write( ending.toLatin1() );
682 else if( aType == HPGL )
684 QString ending = "PU;PA0,0;SP;EC;PG1;EC1;OE\n";
685 hFile.write( ending.toLatin1() );
689 inline void mm2custom( GLViewer_Viewer2d::VectorFileType aType, double& value )
691 if( aType==GLViewer_Viewer2d::POST_SCRIPT )
692 value*=2.8346; //mm to pt
694 else if( aType==GLViewer_Viewer2d::HPGL )
695 value*=40; //mm to plu (there are 40 plues in mm)
697 else if( aType==GLViewer_Viewer2d::ENH_METAFILE )
698 value*=100; //this unit is 1/100 mm
703 Translates current view content to vector file
704 \param aType - type of file
705 \param FileName - name of file,
706 \param aPType - paper size type
707 \param mmLeft, mmRight, mmTop, mmBottom - margins
709 bool GLViewer_Viewer2d::translateTo( VectorFileType aType, QString FileName, PaperType aPType,
710 double mmLeft, double mmRight, double mmTop, double mmBottom )
712 if ( !getActiveView() )
715 QFile hFile( FileName.toUtf8() );
721 GLViewer_ViewPort2d* aCurVP = (GLViewer_ViewPort2d*) getActiveView()->getViewPort();
724 aCurVP->getPan( xPan, yPan );
725 GLfloat aRotation = aCurVP->getGLWidget()->getRotationAngle() * 3.14159265 / 180.0;
727 GLViewer_CoordSystem aViewerCS( GLViewer_CoordSystem::Cartesian, xPan, yPan, 1.0, 1.0, aRotation );
729 double AW = Sizes[2*int(aPType)],
730 AH = Sizes[2*int(aPType)+1]; //size of Axx paper in mm
732 mm2custom( aType, mmLeft ); //we translate mm to custom units
733 mm2custom( aType, mmRight );
734 mm2custom( aType, mmTop );
735 mm2custom( aType, mmBottom );
736 mm2custom( aType, AW );
737 mm2custom( aType, AH );
739 float xScale, yScale;
740 aCurVP->getScale( xScale, yScale );
742 double VPWidth = aCurVP->getWidth()/xScale, //the width in reference units
743 VPHeight = aCurVP->getHeight()/yScale;
745 double k1 = ( AW-mmLeft-mmRight ) / VPWidth,
746 k2 = ( AH-mmTop-mmBottom ) / VPHeight;
749 k1 = k2; //We select the minimum
751 double hdelta = ( AW-mmLeft-mmRight - VPWidth * k1 )/2.0, //addition in horizontal
752 vdelta = ( AH-mmTop-mmBottom - VPHeight * k1 )/2.0; //addition in vertical
754 mmLeft += hdelta; //The real free space on the left and right borders
759 GLViewer_CoordSystem aPaperCS( GLViewer_CoordSystem::Cartesian,
760 -(mmLeft/k1+VPWidth/2.0), -(mmBottom/k1+VPHeight/2.0), 1/k1, 1/k1 );
762 if( aType==POST_SCRIPT || aType==HPGL )
764 hFile.open( QIODevice::ReadWrite | QIODevice::Truncate );
766 insertHeader( aType, hFile );
769 else if( aType==ENH_METAFILE )
772 r.left = 0; r.right = AW;
773 r.top = 0; r.bottom = AH;
774 HDC screen_dc = GetDC( 0 ); //The screen device context
775 HDC bitDC = CreateCompatibleDC ( screen_dc ); //The context compatible with screen
778 LPTSTR str = new TCHAR[FileName.length() + 1];
779 str[FileName.toWCharArray(str)] = '\0';
782 QByteArray arr = FileName.toLatin1();
783 LPTSTR str = arr.constData();
787 hMetaFileDC = CreateEnhMetaFile( bitDC, str, &r, empty );
791 SetMapMode( hMetaFileDC, MM_HIMETRIC );
792 SetWindowOrgEx( hMetaFileDC, 0, r.bottom, NULL );
793 HRGN ClipRgn = CreateRectRgn( 0, 0, AW, AH );
794 SelectClipRgn( hMetaFileDC, ClipRgn );
797 aBrushData.lbColor = RGB( 255, 255, 255 );
798 aBrushData.lbStyle = BS_SOLID;
800 FillRect( hMetaFileDC, &r, CreateBrushIndirect( &aBrushData ) );
802 ReleaseDC( 0, screen_dc );
805 aCurVP->getGLWidget()->translateBackgroundToEMF( hMetaFileDC, &aViewerCS, &aPaperCS );
809 if( aType==POST_SCRIPT )
811 QString temp = "%1 %2 %3 %4 rectclip\n\n",
812 aBuffer = temp.arg( mmLeft ).arg( mmBottom ).
813 arg( AW-mmLeft-mmRight ).arg( AH-mmBottom-mmTop );
814 //It is set clipping path
816 hFile.write( aBuffer.toLatin1() );
818 aCurVP->getGLWidget()->translateBackgroundToPS( hFile, &aViewerCS, &aPaperCS );
822 for( int i=0, n=myDrawers.count(); i<n; i++ )
823 if( aType==POST_SCRIPT )
824 result &= myDrawers[ i ]->translateToPS( hFile, &aViewerCS, &aPaperCS );
825 else if( aType==HPGL )
826 result &= myDrawers[ i ]->translateToHPGL( hFile, &aViewerCS, &aPaperCS );
828 else if( aType==ENH_METAFILE )
829 result &= myDrawers[ i ]->translateToEMF( hMetaFileDC, &aViewerCS, &aPaperCS );
832 if( aType==POST_SCRIPT || aType==HPGL )
834 insertEnding( aType, hFile);
838 else if( aType==ENH_METAFILE )
839 DeleteEnhMetaFile( CloseEnhMetaFile( hMetaFileDC ) );
847 \param theView - view to be repainted. If it is NULL then all views will be repainted
849 void GLViewer_Viewer2d::repaintView( GLViewer_ViewFrame* theView, bool makeCurrent )
851 GLViewer_ViewFrame* aCurView;
853 aCurView = (GLViewer_ViewFrame*)getActiveView();
860 ObjList anActiveObjs;
861 const ObjList& objs = myGLContext->getObjects();
862 for( ObjList::const_iterator it = objs.begin(); it != objs.end(); ++it )
864 GLViewer_Object* obj = (GLViewer_Object*)(*it);
865 if( obj->getVisible() )
866 anActiveObjs.append( obj );
872 QList<GLViewer_Drawer*>::Iterator anIt = myDrawers.begin();
873 QList<GLViewer_Drawer*>::Iterator endDIt = myDrawers.end();
874 for( ; anIt != endDIt; anIt++ )
877 QList<GLViewer_Drawer*> anActiveDrawers;
878 QList<GLViewer_Object*>::Iterator endOIt = anActiveObjs.end();
880 for( QList<GLViewer_Object*>::Iterator oit = anActiveObjs.begin(); oit != endOIt; ++oit )
882 GLViewer_Drawer* aDrawer = (*oit)->getDrawer();
885 anIt = myDrawers.begin();
887 for( ; anIt != endDIt; anIt++ )
888 if( (*anIt)->getObjectType() == (*oit)->getObjectType() )
890 (*oit)->setDrawer( *anIt );
895 if( !aDrawer ) //are not exists
897 myDrawers.append( (*oit)->createDrawer() );
898 aDrawer = (*oit)->getDrawer();
901 aDrawer->addObject( (*oit) );
902 if( anActiveDrawers.indexOf( aDrawer ) == -1 )
903 anActiveDrawers.append( aDrawer );
906 QList<GLViewer_Drawer*>::Iterator aDIt = anActiveDrawers.begin();
907 QList<GLViewer_Drawer*>::Iterator aDEndIt = anActiveDrawers.end();
909 GLViewer_ViewPort2d* vp = ( GLViewer_ViewPort2d* )aCurView->getViewPort();
910 vp->getScale( xScale, yScale );
913 vp->getGLWidget()->makeCurrent();
915 for( ; aDIt != aDEndIt; aDIt++ )
916 (*aDIt)->create( xScale, yScale, false );
919 vp->getGLWidget()->swapBuffers();
921 // ( ( GLViewer_ViewPort2d* )getActiveView()->getViewPort() )->getGLWidget()->makeCurrent();
925 Starts some operation on mouse event
927 void GLViewer_Viewer2d::startOperations( QMouseEvent* e )
929 GLViewer_ViewPort2d* vp = ( GLViewer_ViewPort2d* )((GLViewer_ViewFrame*)getActiveView())->getViewPort();
931 float x = e->pos().x();
932 float y = e->pos().y();
934 GLViewer_Pnt point( x, y );
936 if( e->button() == Qt::LeftButton && !myGLContext->getCurrentObject() && vp->startPulling( point ) )
939 if( e->button() == Qt::LeftButton && !(vp->currentBlock() & BS_Selection) && !myGLContext->getCurrentObject() )
940 vp->startSelectByRect( e->x(), e->y() );
944 Updates started operation on mouse event
946 bool GLViewer_Viewer2d::updateOperations( QMouseEvent* e )
948 GLViewer_ViewPort2d* vp = ( GLViewer_ViewPort2d* )((GLViewer_ViewFrame*)getActiveView())->getViewPort();
950 if( vp->isPulling() )
952 float x = e->pos().x();
953 float y = e->pos().y();
956 vp->drawPulling( GLViewer_Pnt( x, y ) );
961 if( !myGLContext->getCurrentObject() )
963 vp->drawSelectByRect( e->x(), e->y() );
970 Completes started operation on mouse event
972 void GLViewer_Viewer2d::finishOperations( QMouseEvent* e )
974 GLViewer_ViewPort2d* vp = ( GLViewer_ViewPort2d* )((GLViewer_ViewFrame*)getActiveView())->getViewPort();
976 if( vp->isPulling() )
983 if( !myGLContext->getCurrentObject() )
985 QRect aSelRect = vp->selectionRect();
986 vp->finishSelectByRect();
987 if ( getSelector() && !aSelRect.isNull() )
989 bool append = bool ( e->modifiers() & GLViewer_Selector::appendKey() );
990 getSelector()->select( aSelRect, append );
996 Starts some operation on mouse wheel event
998 void GLViewer_Viewer2d::startOperations( QWheelEvent* e )
1000 bool zoomIn = e->delta() > 0;
1001 bool update = false;
1002 for( myGLContext->InitSelected(); myGLContext->MoreSelected(); myGLContext->NextSelected() )
1004 GLViewer_Object* anObject = myGLContext->SelectedObject();
1005 update = anObject->updateZoom( zoomIn ) || update;
1008 emit wheelZoomChange( zoomIn );
1015 int GLViewer_View2dTransformer::rotateBtn = Qt::RightButton;
1020 GLViewer_View2dTransformer::GLViewer_View2dTransformer( GLViewer_Viewer* viewer, int typ )
1021 : GLViewer_ViewTransformer( viewer, typ )
1023 if ( type() == GLViewer_Viewer::Rotate )
1024 initTransform( true );
1030 GLViewer_View2dTransformer::~GLViewer_View2dTransformer()
1032 if ( type() == GLViewer_Viewer::Rotate )
1033 initTransform( false );
1037 Redefined to provide specific 3D transfomations. [ virtual public ]
1039 void GLViewer_View2dTransformer::exec()
1041 if ( !myViewer->getActiveView() )
1044 /* additional transforms */
1045 GLViewer_ViewPort* vp = myViewer->getActiveView()->getViewPort();
1046 GLViewer_ViewPort2d* avp = (GLViewer_ViewPort2d*)vp;
1049 case GLViewer_Viewer::Rotate:
1050 myMajorBtn = rotateButton();
1051 avp->setCursor( *avp->getRotCursor() );
1054 GLViewer_ViewTransformer::exec();
1059 Handles rotation. [ protected virtual ]
1061 void GLViewer_View2dTransformer::onTransform( TransformState state )
1063 if ( !myViewer->getActiveView() )
1066 GLViewer_ViewPort* vp = myViewer->getActiveView()->getViewPort();
1067 GLViewer_ViewPort2d* avp = (GLViewer_ViewPort2d*)vp;
1068 if ( type() == GLViewer_Viewer::Rotate )
1073 if ( myButtonState & myMajorBtn )
1074 avp->startRotation( myStart.x(), myStart.y() );
1077 if ( myButtonState & myMajorBtn )
1078 avp->rotate( myCurr.x(), myCurr.y() );
1086 GLViewer_ViewTransformer::onTransform( state );