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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit90825e2392b2d70e43c7a25b8a3752299a933894 (patch)
treee33aa27f02b74604afbfd0ea4f1cfca8833d882a /qtjava/javalib/examples/qmag/MagWidget.java
downloadtdebindings-90825e2392b2d70e43c7a25b8a3752299a933894.tar.gz
tdebindings-90825e2392b2d70e43c7a25b8a3752299a933894.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebindings@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/***************************************************************************
+* $Id$
+**
+* Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
+**
+* This file is part of an example program for Qt. This example
+* program may be used, distributed and modified without limitation.
+**
+****************************************************************************/
+
+import org.kde.qt.*;
+
+class MagWidget extends QWidget
+{
+private QComboBox zoom;
+private QComboBox refresh;
+private QPushButton saveButton;
+private QPushButton multiSaveButton;
+private QPushButton quitButton;
+private QPixmap pm; // pixmap, magnified
+private QPixmap p; // pixmap
+private QImage image; // image of pixmap (for RGB)
+private QLabel rgb;
+private int yoffset; // pixels in addition to the actual picture
+private int z; // magnification factor
+private int r; // autorefresh rate (index into refreshrates)
+private boolean grabbing; // true if qmag is currently grabbing
+private int grabx, graby;
+private String multifn; // filename for multisave
+
+
+static String zoomfactors[] = {
+ "100%", "200%", "300%", "400%", "500%",
+ "600%", "700%", "800%", "1600%" };
+
+static String refreshrates[] = {
+ "No autorefresh", "50 per second", "4 per second", "3 per second", "2 per second",
+ "Every second", "Every two seconds", "Every three seconds",
+ "Every five seconds", "Every ten seconds" };
+
+static int timer[] = {
+ 0, 20, 250, 333, 500, 1000, 2000, 3000, 5000, 10000 };
+
+
+MagWidget( )
+{
+ this(null, null);
+}
+
+MagWidget( QWidget parent, String name )
+{
+ super( parent, name);
+ z = 1; // default zoom (100%)
+ r = 0; // default refresh (none)
+
+ int w=0, x=0, n;
+
+ zoom = new QComboBox( false, this );
+ zoom.insertStrList( zoomfactors, 9 );
+ connect( zoom, SIGNAL("activated(int)"), SLOT("setZoom(int)") );
+
+ refresh = new QComboBox( false, this );
+ refresh.insertStrList( refreshrates, 9 );
+ connect( refresh, SIGNAL("activated(int)"), SLOT("setRefresh(int)") );
+
+ for( n=0; n<9; n++) {
+ int w2 = zoom.fontMetrics().width( zoomfactors[n] );
+ w = w2 > w ? w2 : w;
+ }
+ zoom.setGeometry( 2, 2, w+30, 20 );
+
+ x = w+34;
+ w = 0;
+ for( n=0; n<9; n++) {
+ int w2 = refresh.fontMetrics().width( refreshrates[n] );
+ w = w2 > w ? w2 : w;
+ }
+ refresh.setGeometry( x, 2, w+30, 20 );
+
+ saveButton = new QPushButton( this );
+ connect( saveButton, SIGNAL("clicked()"), this, SLOT("save()") );
+ saveButton.setText( "Save" );
+ saveButton.setGeometry( x+w+30+2, 2,
+ 10+saveButton.fontMetrics().width("Save"), 20 );
+
+ multiSaveButton = new QPushButton( this );
+ multiSaveButton.setToggleButton(true);
+ connect( multiSaveButton, SIGNAL("clicked()"), this, SLOT("multiSave()") );
+ multiSaveButton.setText( "MultiSave" );
+ multiSaveButton.setGeometry( saveButton.geometry().right() + 2, 2,
+ 10+multiSaveButton.fontMetrics().width("MultiSave"), 20 );
+
+ quitButton = new QPushButton( this );
+ connect( quitButton, SIGNAL("clicked()"), qApp(), SLOT("quit()") );
+ quitButton.setText( "Quit" );
+ quitButton.setGeometry( multiSaveButton.geometry().right() + 2, 2,
+ 10+quitButton.fontMetrics().width("Quit"), 20 );
+
+// #else
+// zoom = null;
+// multiSaveButton = null;
+
+ setRefresh(1);
+ setZoom(5);
+
+ rgb = new QLabel( this );
+ rgb.setText( "" );
+ rgb.setAlignment( AlignVCenter );
+ rgb.resize( width(), rgb.fontMetrics().height() + 4 );
+
+ yoffset = zoom.height() // top buttons
+ + 4 // space around top buttons
+ + rgb.height(); // color-value text height
+ setMinimumSize( quitButton.pos().x(), yoffset+20 );
+ resize( quitButton.geometry().topRight().x() + 2, yoffset+60 );
+// #else
+ yoffset = 0;
+ resize(350,350);
+
+ grabx = graby = -1;
+ grabbing = false;
+
+ setMouseTracking( true ); // and do let me know what pixel I'm at, eh?
+
+ grabAround( new QPoint(grabx=qApp().desktop().width()/2, graby=qApp().desktop().height()/2) );
+}
+
+
+void setZoom( int index )
+{
+ if (index == 8)
+ z = 16;
+ else
+ z = index+1;
+ grab();
+}
+
+
+void setRefresh( int index )
+{
+ r = index;
+ killTimers();
+ if (index != 0 && grabbing)
+ startTimer( timer[r] );
+}
+
+
+void save()
+{
+ if ( p != null ) {
+ killTimers();
+ String fn = QFileDialog.getSaveFileName();
+ if ( !fn.equals("") )
+ p.save( fn, "BMP" );
+ if ( r != 0)
+ startTimer( timer[r] );
+ }
+}
+
+void multiSave()
+{
+ if ( p != null ) {
+ multifn = ""; // stops saving
+ multifn = QFileDialog.getSaveFileName();
+ if ( multifn.equals("") )
+ multiSaveButton.setOn(false);
+ if ( r == 0)
+ p.save( multifn, "BMP" );
+ } else {
+ multiSaveButton.setOn(false);
+ }
+}
+
+
+void grab()
+{
+ if ( !isVisible() )
+ return; // don't eat resources when iconified
+
+ if ( grabx < 0 || graby < 0 )
+ return; // don't grab until the user has said to
+
+ int x,y, w,h;
+
+ w = (width()+z-1)/z;
+ h = (height()+z-1-yoffset)/z;
+ if ( w<1 || h<1 )
+ return; // don't ask too much from the window system :)
+
+ x = grabx-w/2; // find a suitable position to grab from
+ y = graby-h/2;
+ if ( x + w > QApplication.desktop().width() )
+ x = QApplication.desktop().width()-w;
+ else if ( x < 0 )
+ x = 0;
+ if ( y + h > QApplication.desktop().height() )
+ y = QApplication.desktop().height()-h;
+ else if ( y < 0 )
+ y = 0;
+
+ p = QPixmap.grabWindow( QApplication.desktop().winId(), x, y, w, h );
+ image = p.convertToImage();
+ QWMatrix m = new QWMatrix(); // after getting it, scale it
+ m.scale( (double)z, (double)z );
+ // A cast from Object to QPixmap is needed in java. The xForm methods
+ // have several different return types in C++, and must all be of type
+ // 'Object' for java
+ pm = (QPixmap) p.xForm( m );
+
+ if ( multiSaveButton == null || !multiSaveButton.isOn() )
+ repaint( false ); // and finally repaint, flicker-free
+}
+
+
+protected void paintEvent( QPaintEvent e )
+{
+ if ( pm != null ) {
+ QPainter paint = new QPainter( this );
+ paint.drawPixmap( 0, zoom != null ? zoom.height()+4 : 0, pm,
+ 0,0, width(), height()-yoffset );
+ }
+}
+
+
+protected void mousePressEvent( QMouseEvent e )
+{
+ if ( !grabbing ) { // prepare to grab...
+ grabbing = true;
+ killTimers();
+ grabMouse( crossCursor() );
+ grabx = -1;
+ graby = -1;
+ } else { // REALLY prepare to grab
+ grabx = mapToGlobal(e.pos()).x();
+ graby = mapToGlobal(e.pos()).y();
+ }
+}
+
+
+
+protected void mouseReleaseEvent( QMouseEvent e )
+{
+ if ( grabbing && grabx >= 0 && graby >= 0 ) {
+ grabbing = false;
+ grabAround(e.pos());
+ releaseMouse();
+ }
+}
+
+void grabAround(QPoint pos)
+{
+ int rx, ry;
+ rx = mapToGlobal(pos).x();
+ ry = mapToGlobal(pos).y();
+ int w = Math.abs(rx-grabx);
+ int h = Math.abs(ry-graby);
+ if ( w > 10 && h > 10 ) {
+ int pz;
+ pz = 1;
+ while ( w*pz*h*pz < width()*(height()-yoffset) &&
+ w*pz < QApplication.desktop().width() &&
+ h*pz < QApplication.desktop().height() )
+ pz++;
+ if ( (w*pz*h*pz - width()*(height()-yoffset)) >
+ (width()*(height()-yoffset) - w*(pz-1)*h*(pz-1)) )
+ pz--;
+ if ( pz < 1 )
+ pz = 1;
+ if ( pz > 8 )
+ pz = 8;
+ if ( zoom != null)
+ zoom.setCurrentItem( pz-1 );
+
+ z = pz;
+ grabx = (rx < grabx ? rx : grabx) + w/2;
+ graby = (ry < graby ? ry : graby) + h/2;
+ resize( w*z, h*z+yoffset );
+ }
+ grab();
+ if ( r != 0 )
+ startTimer( timer[r] );
+}
+
+
+protected void mouseMoveEvent( QMouseEvent e )
+{
+ if ( grabbing || pm.isNull() ||
+ e.pos().y() > height() - (zoom != null ? zoom.fontMetrics().height() - 4 : 0) ||
+ e.pos().y() < (zoom != null ? zoom.height()+4 : 4) ) {
+ rgb.setText( "" );
+ } else {
+ int x,y;
+ x = e.pos().x() / z;
+ y = (e.pos().y() - ( zoom != null ? zoom.height() : 0 ) - 4) / z;
+ String pixelinfo = "";
+ if ( image.valid(x,y) )
+ {
+ int px = image.pixel(x,y);
+ pixelinfo= " " + qRed(px) + "," + qGreen(px) + "," + qBlue(px) + " ";
+ pixelinfo += "#" + Integer.toHexString(qRed(px))
+ + Integer.toHexString(qGreen(px))
+ + Integer.toHexString(qBlue(px)) + " ";
+ }
+ String label = "x=" + (x+grabx) + ", y=" + (y+graby) + " " + pixelinfo;
+ rgb.setText( label );
+ }
+}
+
+
+protected void focusOutEvent( QFocusEvent e )
+{
+ rgb.setText( "" );
+}
+
+
+protected void timerEvent( QTimerEvent e )
+{
+ grab();
+/*
+ if ( multiSaveButton.isOn() && !multifn.equals("") ) {
+ QRegExp num("[0-9][0-9]");
+ int start;
+ int len;
+ if ((start=num.match(multifn,0,&len))>=0)
+ multifn.replace(num,
+ String().setNum(multifn.mid(start,len).toInt()+1)
+ );
+ p.save( multifn, "BMP" );
+ }
+*/
+}
+
+
+protected void resizeEvent( QResizeEvent e )
+{
+ rgb.setGeometry( 0, height() - rgb.height(), width(), rgb.height() );
+ grab();
+}
+
+
+
+
+public static void main(String[] args)
+{
+ QApplication a = new QApplication( args );
+ MagWidget m = new MagWidget();
+ a.setMainWidget( m );
+ m.show();
+ a.exec();
+ return;
+}
+
+ static {
+ qtjava.initialize();
+ }
+}