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357 lines
8.7 KiB
357 lines
8.7 KiB
/***************************************************************************
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* $Id$
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**
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* Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
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**
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* This file is part of an example program for Qt. This example
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* program may be used, distributed and modified without limitation.
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**
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****************************************************************************/
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import org.kde.qt.*;
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class MagWidget extends TQWidget
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{
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private TQComboBox zoom;
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private TQComboBox refresh;
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private TQPushButton saveButton;
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private TQPushButton multiSaveButton;
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private TQPushButton quitButton;
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private TQPixmap pm; // pixmap, magnified
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private TQPixmap p; // pixmap
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private TQImage image; // image of pixmap (for RGB)
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private TQLabel rgb;
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private int yoffset; // pixels in addition to the actual picture
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private int z; // magnification factor
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private int r; // autorefresh rate (index into refreshrates)
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private boolean grabbing; // true if qmag is currently grabbing
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private int grabx, graby;
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private String multifn; // filename for multisave
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static String zoomfactors[] = {
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"100%", "200%", "300%", "400%", "500%",
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"600%", "700%", "800%", "1600%" };
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static String refreshrates[] = {
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"No autorefresh", "50 per second", "4 per second", "3 per second", "2 per second",
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"Every second", "Every two seconds", "Every three seconds",
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"Every five seconds", "Every ten seconds" };
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static int timer[] = {
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0, 20, 250, 333, 500, 1000, 2000, 3000, 5000, 10000 };
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MagWidget( )
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{
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this(null, null);
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}
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MagWidget( TQWidget parent, String name )
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{
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super( parent, name);
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z = 1; // default zoom (100%)
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r = 0; // default refresh (none)
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int w=0, x=0, n;
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zoom = new TQComboBox( false, this );
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zoom.insertStrList( zoomfactors, 9 );
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connect( zoom, SIGNAL("activated(int)"), SLOT("setZoom(int)") );
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refresh = new TQComboBox( false, this );
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refresh.insertStrList( refreshrates, 9 );
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connect( refresh, SIGNAL("activated(int)"), SLOT("setRefresh(int)") );
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for( n=0; n<9; n++) {
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int w2 = zoom.fontMetrics().width( zoomfactors[n] );
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w = w2 > w ? w2 : w;
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}
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zoom.setGeometry( 2, 2, w+30, 20 );
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x = w+34;
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w = 0;
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for( n=0; n<9; n++) {
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int w2 = refresh.fontMetrics().width( refreshrates[n] );
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w = w2 > w ? w2 : w;
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}
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refresh.setGeometry( x, 2, w+30, 20 );
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saveButton = new TQPushButton( this );
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connect( saveButton, SIGNAL("clicked()"), this, SLOT("save()") );
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saveButton.setText( "Save" );
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saveButton.setGeometry( x+w+30+2, 2,
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10+saveButton.fontMetrics().width("Save"), 20 );
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multiSaveButton = new TQPushButton( this );
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multiSaveButton.setToggleButton(true);
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connect( multiSaveButton, SIGNAL("clicked()"), this, SLOT("multiSave()") );
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multiSaveButton.setText( "MultiSave" );
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multiSaveButton.setGeometry( saveButton.geometry().right() + 2, 2,
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10+multiSaveButton.fontMetrics().width("MultiSave"), 20 );
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quitButton = new TQPushButton( this );
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connect( quitButton, SIGNAL("clicked()"), qApp(), SLOT("quit()") );
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quitButton.setText( "Quit" );
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quitButton.setGeometry( multiSaveButton.geometry().right() + 2, 2,
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10+quitButton.fontMetrics().width("Quit"), 20 );
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// #else
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// zoom = null;
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// multiSaveButton = null;
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setRefresh(1);
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setZoom(5);
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rgb = new TQLabel( this );
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rgb.setText( "" );
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rgb.setAlignment( AlignVCenter );
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rgb.resize( width(), rgb.fontMetrics().height() + 4 );
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yoffset = zoom.height() // top buttons
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+ 4 // space around top buttons
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+ rgb.height(); // color-value text height
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setMinimumSize( quitButton.pos().x(), yoffset+20 );
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resize( quitButton.geometry().topRight().x() + 2, yoffset+60 );
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// #else
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yoffset = 0;
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resize(350,350);
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grabx = graby = -1;
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grabbing = false;
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setMouseTracking( true ); // and do let me know what pixel I'm at, eh?
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grabAround( new TQPoint(grabx=qApp().desktop().width()/2, graby=qApp().desktop().height()/2) );
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}
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void setZoom( int index )
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{
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if (index == 8)
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z = 16;
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else
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z = index+1;
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grab();
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}
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void setRefresh( int index )
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{
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r = index;
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killTimers();
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if (index != 0 && grabbing)
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startTimer( timer[r] );
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}
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void save()
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{
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if ( p != null ) {
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killTimers();
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String fn = TQFileDialog.getSaveFileName();
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if ( !fn.equals("") )
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p.save( fn, "BMP" );
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if ( r != 0)
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startTimer( timer[r] );
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}
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}
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void multiSave()
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{
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if ( p != null ) {
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multifn = ""; // stops saving
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multifn = TQFileDialog.getSaveFileName();
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if ( multifn.equals("") )
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multiSaveButton.setOn(false);
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if ( r == 0)
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p.save( multifn, "BMP" );
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} else {
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multiSaveButton.setOn(false);
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}
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}
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void grab()
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{
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if ( !isVisible() )
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return; // don't eat resources when iconified
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if ( grabx < 0 || graby < 0 )
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return; // don't grab until the user has said to
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int x,y, w,h;
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w = (width()+z-1)/z;
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h = (height()+z-1-yoffset)/z;
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if ( w<1 || h<1 )
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return; // don't ask too much from the window system :)
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x = grabx-w/2; // find a suitable position to grab from
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y = graby-h/2;
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if ( x + w > TQApplication.desktop().width() )
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x = TQApplication.desktop().width()-w;
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else if ( x < 0 )
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x = 0;
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if ( y + h > TQApplication.desktop().height() )
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y = TQApplication.desktop().height()-h;
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else if ( y < 0 )
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y = 0;
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p = TQPixmap.grabWindow( TQApplication.desktop().winId(), x, y, w, h );
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image = p.convertToImage();
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TQWMatrix m = new TQWMatrix(); // after getting it, scale it
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m.scale( (double)z, (double)z );
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// A cast from Object to TQPixmap is needed in java. The xForm methods
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// have several different return types in C++, and must all be of type
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// 'Object' for java
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pm = (TQPixmap) p.xForm( m );
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if ( multiSaveButton == null || !multiSaveButton.isOn() )
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repaint( false ); // and finally repaint, flicker-free
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}
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protected void paintEvent( TQPaintEvent e )
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{
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if ( pm != null ) {
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TQPainter paint = new TQPainter( this );
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paint.drawPixmap( 0, zoom != null ? zoom.height()+4 : 0, pm,
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0,0, width(), height()-yoffset );
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}
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}
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protected void mousePressEvent( TQMouseEvent e )
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{
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if ( !grabbing ) { // prepare to grab...
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grabbing = true;
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killTimers();
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grabMouse( crossCursor() );
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grabx = -1;
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graby = -1;
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} else { // REALLY prepare to grab
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grabx = mapToGlobal(e.pos()).x();
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graby = mapToGlobal(e.pos()).y();
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}
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}
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protected void mouseReleaseEvent( TQMouseEvent e )
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{
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if ( grabbing && grabx >= 0 && graby >= 0 ) {
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grabbing = false;
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grabAround(e.pos());
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releaseMouse();
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}
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}
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void grabAround(TQPoint pos)
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{
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int rx, ry;
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rx = mapToGlobal(pos).x();
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ry = mapToGlobal(pos).y();
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int w = Math.abs(rx-grabx);
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int h = Math.abs(ry-graby);
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if ( w > 10 && h > 10 ) {
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int pz;
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pz = 1;
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while ( w*pz*h*pz < width()*(height()-yoffset) &&
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w*pz < TQApplication.desktop().width() &&
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h*pz < TQApplication.desktop().height() )
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pz++;
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if ( (w*pz*h*pz - width()*(height()-yoffset)) >
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(width()*(height()-yoffset) - w*(pz-1)*h*(pz-1)) )
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pz--;
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if ( pz < 1 )
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pz = 1;
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if ( pz > 8 )
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pz = 8;
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if ( zoom != null)
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zoom.setCurrentItem( pz-1 );
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z = pz;
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grabx = (rx < grabx ? rx : grabx) + w/2;
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graby = (ry < graby ? ry : graby) + h/2;
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resize( w*z, h*z+yoffset );
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}
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grab();
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if ( r != 0 )
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startTimer( timer[r] );
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}
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protected void mouseMoveEvent( TQMouseEvent e )
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{
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if ( grabbing || pm.isNull() ||
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e.pos().y() > height() - (zoom != null ? zoom.fontMetrics().height() - 4 : 0) ||
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e.pos().y() < (zoom != null ? zoom.height()+4 : 4) ) {
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rgb.setText( "" );
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} else {
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int x,y;
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x = e.pos().x() / z;
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y = (e.pos().y() - ( zoom != null ? zoom.height() : 0 ) - 4) / z;
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String pixelinfo = "";
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if ( image.valid(x,y) )
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{
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int px = image.pixel(x,y);
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pixelinfo= " " + qRed(px) + "," + qGreen(px) + "," + qBlue(px) + " ";
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pixelinfo += "#" + Integer.toHexString(qRed(px))
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+ Integer.toHexString(qGreen(px))
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+ Integer.toHexString(qBlue(px)) + " ";
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}
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String label = "x=" + (x+grabx) + ", y=" + (y+graby) + " " + pixelinfo;
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rgb.setText( label );
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}
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}
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protected void focusOutEvent( TQFocusEvent e )
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{
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rgb.setText( "" );
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}
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protected void timerEvent( TQTimerEvent e )
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{
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grab();
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/*
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if ( multiSaveButton.isOn() && !multifn.equals("") ) {
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TQRegExp num("[0-9][0-9]");
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int start;
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int len;
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if ((start=num.match(multifn,0,&len))>=0)
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multifn.replace(num,
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String().setNum(multifn.mid(start,len).toInt()+1)
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);
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p.save( multifn, "BMP" );
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}
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*/
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}
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protected void resizeEvent( TQResizeEvent e )
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{
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rgb.setGeometry( 0, height() - rgb.height(), width(), rgb.height() );
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grab();
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}
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public static void main(String[] args)
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{
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TQApplication a = new TQApplication( args );
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MagWidget m = new MagWidget();
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a.setMainWidget( m );
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m.show();
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a.exec();
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return;
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}
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static {
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qtjava.initialize();
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}
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}
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