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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-08 12:31:36 -0600
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-08 12:31:36 -0600
commitd796c9dd933ab96ec83b9a634feedd5d32e1ba3f (patch)
tree6e3dcca4f77e20ec8966c666aac7c35bd4704053 /examples/opengl/glpixmap/globjwin.cpp
downloadtqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.tar.gz
tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.zip
Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731
Diffstat (limited to 'examples/opengl/glpixmap/globjwin.cpp')
-rw-r--r--examples/opengl/glpixmap/globjwin.cpp214
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diff --git a/examples/opengl/glpixmap/globjwin.cpp b/examples/opengl/glpixmap/globjwin.cpp
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+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of an example program for TQt. This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+/****************************************************************************
+**
+** Implementation of GLObjectWindow widget class
+**
+****************************************************************************/
+
+
+#include <qpushbutton.h>
+#include <qslider.h>
+#include <qlayout.h>
+#include <qframe.h>
+#include <qlabel.h>
+#include <qmenubar.h>
+#include <qpopupmenu.h>
+#include <qapplication.h>
+#include <qkeycode.h>
+#include <qpixmap.h>
+#include <qimage.h>
+#include <qpainter.h>
+#include "globjwin.h"
+#include "glbox.h"
+
+
+GLObjectWindow::GLObjectWindow( TQWidget* parent, const char* name )
+ : TQWidget( parent, name )
+{
+ // Create a menu
+ file = new TQPopupMenu( this );
+ file->setCheckable( TRUE );
+ file->insertItem( "Grab Frame Buffer", this, SLOT(grabFrameBuffer()) );
+ file->insertItem( "Render Pixmap", this, SLOT(makePixmap()) );
+ file->insertItem( "Render Pixmap Hidden", this, SLOT(makePixmapHidden()) );
+ file->insertSeparator();
+ fixMenuItemId = file->insertItem( "Use Fixed Pixmap Size", this,
+ SLOT(useFixedPixmapSize()) );
+ file->insertSeparator();
+ insertMenuItemId = file->insertItem( "Insert Pixmap Here", this,
+ SLOT(makePixmapForMenu()) );
+ file->insertSeparator();
+ file->insertItem( "Exit", qApp, SLOT(tquit()), CTRL+Key_Q );
+
+ // Create a menu bar
+ TQMenuBar *m = new TQMenuBar( this );
+ m->setSeparator( TQMenuBar::InWindowsStyle );
+ m->insertItem("&File", file );
+
+ // Create nice frames to put around the OpenGL widgets
+ TQFrame* f1 = new TQFrame( this, "frame1" );
+ f1->setFrameStyle( TQFrame::Sunken | TQFrame::Panel );
+ f1->setLineWidth( 2 );
+
+ // Create an OpenGL widget
+ c1 = new GLBox( f1, "glbox1");
+
+ // Create a label that can display the pixmap
+ lb = new TQLabel( this, "pixlabel" );
+ lb->setFrameStyle( TQFrame::Sunken | TQFrame::Panel );
+ lb->setLineWidth( 2 );
+ lb->setAlignment( AlignCenter );
+ lb->setMargin( 0 );
+ lb->setIndent( 0 );
+
+ // Create the three sliders; one for each rotation axis
+ TQSlider* x = new TQSlider ( 0, 360, 60, 0, TQSlider::Vertical, this, "xsl" );
+ x->setTickmarks( TQSlider::Left );
+ connect( x, SIGNAL(valueChanged(int)), c1, SLOT(setXRotation(int)) );
+
+ TQSlider* y = new TQSlider ( 0, 360, 60, 0, TQSlider::Vertical, this, "ysl" );
+ y->setTickmarks( TQSlider::Left );
+ connect( y, SIGNAL(valueChanged(int)), c1, SLOT(setYRotation(int)) );
+
+ TQSlider* z = new TQSlider ( 0, 360, 60, 0, TQSlider::Vertical, this, "zsl" );
+ z->setTickmarks( TQSlider::Left );
+ connect( z, SIGNAL(valueChanged(int)), c1, SLOT(setZRotation(int)) );
+
+
+ // Now that we have all the widgets, put them into a nice layout
+
+ // Put the sliders on top of each other
+ TQVBoxLayout* vlayout = new TQVBoxLayout( 20, "vlayout");
+ vlayout->addWidget( x );
+ vlayout->addWidget( y );
+ vlayout->addWidget( z );
+
+ // Put the GL widget inside the frame
+ TQHBoxLayout* flayout1 = new TQHBoxLayout( f1, 2, 2, "flayout1");
+ flayout1->addWidget( c1, 1 );
+
+ // Top level layout, puts the sliders to the left of the frame/GL widget
+ TQHBoxLayout* hlayout = new TQHBoxLayout( this, 20, 20, "hlayout");
+ hlayout->setMenuBar( m );
+ hlayout->addLayout( vlayout );
+ hlayout->addWidget( f1, 1 );
+ hlayout->addWidget( lb, 1 );
+
+}
+
+
+
+void GLObjectWindow::grabFrameBuffer()
+{
+ TQImage img = c1->grabFrameBuffer();
+
+ // Convert image to pixmap so we can show it
+ TQPixmap pm;
+ pm.convertFromImage( img, AvoidDither );
+ drawOnPixmap( &pm );
+ lb->setPixmap( pm );
+}
+
+
+
+void GLObjectWindow::makePixmap()
+{
+ // Make a pixmap to to be rendered by the gl widget
+ TQPixmap pm;
+
+ // Render the pixmap, with either c1's size or the fixed size pmSz
+ if ( pmSz.isValid() )
+ pm = c1->renderPixmap( pmSz.width(), pmSz.height() );
+ else
+ pm = c1->renderPixmap();
+
+ if ( !pm.isNull() ) {
+ // Present the pixmap to the user
+ drawOnPixmap( &pm );
+ lb->setPixmap( pm );
+ }
+ else {
+ lb->setText( "Failed to render Pixmap." );
+ }
+}
+
+
+void GLObjectWindow::makePixmapHidden()
+{
+ // Make a TQGLWidget to draw the pixmap. This widget will not be shown.
+ GLBox* w = new GLBox( this, "temporary glwidget", c1 );
+
+ bool success = FALSE;
+ TQPixmap pm;
+
+ if ( w->isValid() ) {
+ // Set the current rotation
+ w->copyRotation( *c1 );
+
+ // Determine wanted pixmap size
+ TQSize sz = pmSz.isValid() ? pmSz : c1->size();
+
+ // Make our hidden glwidget render the pixmap
+ pm = w->renderPixmap( sz.width(), sz.height() );
+
+ if ( !pm.isNull() )
+ success = TRUE;
+ }
+
+ if ( success ) {
+ // Present the pixmap to the user
+ drawOnPixmap( &pm );
+ lb->setPixmap( pm );
+ }
+ else {
+ lb->setText( "Failed to render Pixmap." );
+ }
+ delete w;
+}
+
+
+void GLObjectWindow::drawOnPixmap( TQPixmap* pm )
+{
+ // Draw some text on the pixmap to differentiate it from the GL window
+
+ if ( pm->isNull() ) {
+ qWarning("Cannot draw on null pixmap");
+ return;
+ }
+ else {
+ TQPainter p( pm );
+ p.setFont( TQFont( "Helvetica", 18 ) );
+ p.setPen( white );
+ p.drawText( pm->rect(), AlignCenter, "This is a Pixmap" );
+ }
+}
+
+
+
+void GLObjectWindow::useFixedPixmapSize()
+{
+ if ( pmSz.isValid() ) {
+ pmSz = TQSize();
+ file->setItemChecked( fixMenuItemId, FALSE );
+ }
+ else {
+ pmSz = TQSize( 200, 200 );
+ file->setItemChecked( fixMenuItemId, TRUE );
+ }
+}
+
+
+void GLObjectWindow::makePixmapForMenu()
+{
+ TQPixmap pm = c1->renderPixmap( 32, 32 );
+ if ( !pm.isNull() )
+ file->changeItem( pm, "Insert Pixmap Here", insertMenuItemId );
+}