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tdegraphics/ksnapshot/ksnapshot.cpp

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16 KiB

/*
* KSnapshot
*
* (c) Richard J. Moore 1997-2002
* (c) Matthias Ettrich 2000
* (c) Aaron J. Seigo 2002
* (c) Nadeem Hasan 2003
* (c) Bernd Brandstetter 2004
* (c) Emanoil Kotsev 2023
*
* Released under the LGPL see file LICENSE for details.
*/
#include <tdelocale.h>
#include <kimageio.h>
#include <tdefiledialog.h>
#include <kimagefilepreview.h>
#include <tdemessagebox.h>
#include <kdebug.h>
#include <tdeapplication.h>
#include <kprinter.h>
#include <tdeio/netaccess.h>
#include <ksavefile.h>
#include <tdetempfile.h>
#include <tqbitmap.h>
#include <tqdragobject.h>
#include <tqimage.h>
#include <tqclipboard.h>
#include <tqvbox.h>
#include <tdeaccel.h>
#include <knotifyclient.h>
#include <khelpmenu.h>
#include <tdepopupmenu.h>
#include <kpushbutton.h>
#include <tdestartupinfo.h>
#include <kiconloader.h>
#include <kprocess.h>
#include <krun.h>
#include <tqcursor.h>
#include <tqregexp.h>
#include <tqpainter.h>
#include <tqpaintdevicemetrics.h>
#include <tqwhatsthis.h>
#include <stdlib.h>
#include "ksnapshot.h"
#include "regiongrabber.h"
#include "windowgrabber.h"
#include "ksnapshotwidget.h"
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <config.h>
#include <tdeglobal.h>
#define kApp TDEApplication::kApplication()
KSnapshot::KSnapshot(TQWidget *parent, const char *name, bool grabCurrent)
: DCOPObject("interface"),
KDialogBase(parent, name, true, TQString(), Help|User1, User1,
true, KStdGuiItem::quit() )
{
grabber = new TQWidget( 0, 0, WStyle_Customize | WX11BypassWM );
grabber->move( -1000, -1000 );
grabber->installEventFilter( this );
TDEStartupInfo::appStarted();
TQVBox *vbox = makeVBoxMainWidget();
mainWidget = new KSnapshotWidget( vbox, "mainWidget" );
connect(mainWidget, TQT_SIGNAL(startImageDrag()), TQT_SLOT(slotDragSnapshot()));
connect(mainWidget, TQT_SIGNAL(newClicked()), TQT_SLOT(slotGrab()));
connect(mainWidget, TQT_SIGNAL(saveClicked()), TQT_SLOT(slotSaveAs()));
connect(mainWidget, TQT_SIGNAL(printClicked()), TQT_SLOT(slotPrint()));
connect(mainWidget, TQT_SIGNAL(copyClicked()), TQT_SLOT(slotCopy()));
connect(mainWidget, TQT_SIGNAL(openWithKPClicked()), TQT_SLOT(slotOpenWithKP()));
connect(tqApp, TQT_SIGNAL(aboutToQuit()), TQT_SLOT(slotAboutToQuit()));
grabber->show();
grabber->grabMouse( waitCursor );
if ( !grabCurrent )
snapshot = TQPixmap::grabWindow( tqt_xrootwin() );
else {
mainWidget->setMode( WindowUnderCursor );
mainWidget->setIncludeDecorations( true );
performGrab();
}
updatePreview();
grabber->releaseMouse();
grabber->hide();
TDEConfig *conf=TDEGlobal::config();
conf->setGroup("GENERAL");
mainWidget->setDelay(conf->readNumEntry("delay",0));
mainWidget->setMode( conf->readNumEntry( "mode", 0 ) );
mainWidget->setIncludeDecorations(conf->readBoolEntry("includeDecorations",true));
filename = KURL::fromPathOrURL( conf->readPathEntry( "filename", TQDir::currentDirPath()+"/"+i18n("snapshot")+"1.png" ));
// Make sure the name is not already being used
while(TDEIO::NetAccess::exists( filename, false, this )) {
autoincFilename();
}
connect( &grabTimer, TQT_SIGNAL( timeout() ), TQT_TQOBJECT(this), TQT_SLOT( grabTimerDone() ) );
connect( &updateTimer, TQT_SIGNAL( timeout() ), TQT_TQOBJECT(this), TQT_SLOT( updatePreview() ) );
TQTimer::singleShot( 0, TQT_TQOBJECT(this), TQT_SLOT( updateCaption() ) );
KHelpMenu *helpMenu = new KHelpMenu(this, TDEGlobal::instance()->aboutData(), false);
TQPushButton *helpButton = actionButton( Help );
helpButton->setPopup(helpMenu->menu());
// Populate Open With... menu
TDEPopupMenu *popupOpenWith = new TDEPopupMenu(this);
openWithOffers = TDETrader::self()->query("image/png", "Type == 'Application'");
int i = 0;
for (TDETrader::OfferList::Iterator it = openWithOffers.begin(); it != openWithOffers.end(); ++it)
{
popupOpenWith->insertItem(SmallIcon((*it)->icon()), (*it)->name(), i);
++i; // we need menu ids to match with OfferList indexes
}
mainWidget->btnOpenWith->setPopup(popupOpenWith);
connect(popupOpenWith, SIGNAL(activated(int)), this, SLOT(slotOpenWith(int)));
// Check for KolourPaint availability
KService::Ptr kpaint = KService::serviceByDesktopName("kolourpaint");
if (!kpaint) {
mainWidget->btnOpenWithKP->hide();
}
TDEAccel* accel = new TDEAccel(this);
accel->insert(TDEStdAccel::Quit, TQT_TQOBJECT(kapp), TQT_SLOT(quit()));
accel->insert( "QuickSave", i18n("Quick Save Snapshot &As..."),
i18n("Save the snapshot to the file specified by the user without showing the file dialog."),
CTRL+SHIFT+Key_S, TQT_TQOBJECT(this), TQT_SLOT(slotSave()));
accel->insert(TDEStdAccel::Save, TQT_TQOBJECT(this), TQT_SLOT(slotSaveAs()));
// accel->insert(TDEShortcut(CTRL+Key_A), TQT_TQOBJECT(this), TQT_SLOT(slotSaveAs()));
accel->insert( "SaveAs", i18n("Save Snapshot &As..."),
i18n("Save the snapshot to the file specified by the user."),
CTRL+Key_A, TQT_TQOBJECT(this), TQT_SLOT(slotSaveAs()));
accel->insert(TDEStdAccel::Print, TQT_TQOBJECT(this), TQT_SLOT(slotPrint()));
accel->insert(TDEStdAccel::New, TQT_TQOBJECT(this), TQT_SLOT(slotGrab()));
accel->insert(TDEStdAccel::Copy, TQT_TQOBJECT(this), TQT_SLOT(slotCopy()));
accel->insert( "Quit2", Key_Q, TQT_TQOBJECT(this), TQT_SLOT(slotSave()));
accel->insert( "Save2", Key_S, TQT_TQOBJECT(this), TQT_SLOT(slotSaveAs()));
accel->insert( "Print2", Key_P, TQT_TQOBJECT(this), TQT_SLOT(slotPrint()));
accel->insert( "New2", Key_N, TQT_TQOBJECT(this), TQT_SLOT(slotGrab()));
accel->insert( "New3", Key_Space, TQT_TQOBJECT(this), TQT_SLOT(slotGrab()));
setEscapeButton( User1 );
connect( this, TQT_SIGNAL( user1Clicked() ), TQT_SLOT( reject() ) );
mainWidget->btnNew->setFocus();
oldWinPos = pos();
}
KSnapshot::~KSnapshot()
{
}
void KSnapshot::resizeEvent( TQResizeEvent *event)
{
if( !updateTimer.isActive() )
updateTimer.start(200, true);
else
updateTimer.changeInterval(200);
}
bool KSnapshot::save( const TQString &filename )
{
return save( KURL::fromPathOrURL( filename ));
}
bool KSnapshot::save( const KURL& url )
{
if ( TDEIO::NetAccess::exists( url, false, this ) ) {
const TQString title = i18n( "File Exists" );
const TQString text = i18n( "<qt>Do you really want to overwrite <b>%1</b>?</qt>" ).arg(url.prettyURL());
if (KMessageBox::Continue != KMessageBox::warningContinueCancel( this, text, title, i18n("Overwrite") ) )
{
return false;
}
}
TQString type( KImageIO::type(url.path()) );
if ( type.isNull() )
type = "PNG";
bool ok = false;
if ( url.isLocalFile() ) {
KSaveFile saveFile( url.path() );
if ( saveFile.status() == 0 ) {
if ( snapshot.save( saveFile.file(), type.latin1() ) )
ok = saveFile.close();
}
}
else {
KTempFile tmpFile;
tmpFile.setAutoDelete( true );
if ( tmpFile.status() == 0 ) {
if ( snapshot.save( tmpFile.file(), type.latin1() ) ) {
if ( tmpFile.close() )
ok = TDEIO::NetAccess::upload( tmpFile.name(), url, this );
}
}
}
TQApplication::restoreOverrideCursor();
if ( !ok ) {
kdWarning() << "KSnapshot was unable to save the snapshot" << endl;
TQString caption = i18n("Unable to save image");
TQString text = i18n("KSnapshot was unable to save the image to\n%1.")
.arg(url.prettyURL());
KMessageBox::error(this, text, caption);
}
return ok;
}
void KSnapshot::slotSave()
{
if ( save(filename) ) {
modified = false;
autoincFilename();
}
}
void KSnapshot::slotSaveAs()
{
TQStringList mimetypes = KImageIO::mimeTypes( KImageIO::Writing );
KFileDialog dlg( filename.url(), mimetypes.join(" "), this, "filedialog", true);
dlg.setOperationMode( KFileDialog::Saving );
dlg.setCaption( i18n("Save As") );
KImageFilePreview *ip = new KImageFilePreview( &dlg );
dlg.setPreviewWidget( ip );
if ( !dlg.exec() )
return;
KURL url = dlg.selectedURL();
if ( !url.isValid() )
return;
if ( save(url) ) {
filename = url;
modified = false;
autoincFilename();
}
}
void KSnapshot::slotCopy()
{
TQClipboard *cb = TQApplication::clipboard();
cb->setPixmap( snapshot );
}
void KSnapshot::slotDragSnapshot()
{
TQDragObject *drobj = new TQImageDrag(snapshot.convertToImage(), this);
drobj->setPixmap(mainWidget->preview());
drobj->dragCopy();
}
void KSnapshot::slotGrab()
{
oldWinPos = pos();
hide();
if ( mainWidget->delay() && mainWidget->mode() != Region )
grabTimer.start( mainWidget->delay() * 1000, true );
else {
if ( mainWidget->mode() == Region ) {
rgnGrab = new RegionGrabber();
connect( rgnGrab, TQT_SIGNAL( regionGrabbed( const TQPixmap & ) ),
TQT_SLOT( slotRegionGrabbed( const TQPixmap & ) ) );
}
else {
grabber->show();
grabber->grabMouse( crossCursor );
}
}
}
void KSnapshot::slotPrint()
{
KPrinter printer;
if (snapshot.width() > snapshot.height())
printer.setOrientation(KPrinter::Landscape);
else
printer.setOrientation(KPrinter::Portrait);
tqApp->processEvents();
if (printer.setup(this, i18n("Print Screenshot")))
{
tqApp->processEvents();
TQPainter painter(&printer);
TQPaintDeviceMetrics metrics(painter.device());
float w = snapshot.width();
float dw = w - metrics.width();
float h = snapshot.height();
float dh = h - metrics.height();
bool scale = false;
if ( (dw > 0.0) || (dh > 0.0) )
scale = true;
if ( scale ) {
TQImage img = snapshot.convertToImage();
tqApp->processEvents();
float newh, neww;
if ( dw > dh ) {
neww = w-dw;
newh = neww/w*h;
}
else {
newh = h-dh;
neww = newh/h*w;
}
img = img.smoothScale( int(neww), int(newh), TQImage::ScaleMin );
tqApp->processEvents();
int x = (metrics.width()-img.width())/2;
int y = (metrics.height()-img.height())/2;
painter.drawImage( x, y, img);
}
else {
int x = (metrics.width()-snapshot.width())/2;
int y = (metrics.height()-snapshot.height())/2;
painter.drawPixmap( x, y, snapshot );
}
}
tqApp->processEvents();
}
void KSnapshot::slotRegionGrabbed( const TQPixmap &pix )
{
if ( !pix.isNull() )
{
snapshot = pix;
updatePreview();
modified = true;
updateCaption();
}
delete rgnGrab;
TQApplication::restoreOverrideCursor();
move(oldWinPos);
show();
}
void KSnapshot::slotWindowGrabbed( const TQPixmap &pix )
{
if ( !pix.isNull() )
{
snapshot = pix;
updatePreview();
modified = true;
updateCaption();
}
TQApplication::restoreOverrideCursor();
move(oldWinPos);
show();
}
void KSnapshot::slotOpenWith(int id)
{
openWithExternalApp(*openWithOffers[id]);
}
void KSnapshot::slotOpenWithKP() {
KService::Ptr kpaint = KService::serviceByDesktopName("kolourpaint");
if (kpaint) {
openWithExternalApp(*kpaint);
}
}
void KSnapshot::openWithExternalApp(const KService &service) {
// Write snapshot to temporary file
bool ok = false;
KTempFile *tmpFile = new KTempFile;
if (tmpFile->status() == 0) {
if (snapshot.save(tmpFile->file(), "PNG")) {
if (tmpFile->close()) {
ok = true;
}
}
}
if (!ok) {
KMessageBox::error(this, i18n("KSnapshot was unable to create temporary file."),
i18n("Unable to save image"));
delete tmpFile;
return;
}
// Launch application
KURL::List list;
list.append(tmpFile->name());
TQStringList args = KRun::processDesktopExec(service, list, false, false);
TDEProcess *externalApp = new TDEProcess;
*externalApp << args;
connect(externalApp, SIGNAL(processExited(TDEProcess*)),
this, SLOT(slotExternalAppClosed(TDEProcess*)));
if (!externalApp->start(TDEProcess::OwnGroup)) {
KMessageBox::error(this, i18n("Cannot start %1!").arg(service.name()));
delete tmpFile;
return;
}
m_tmpFiles[externalApp] = tmpFile;
}
void KSnapshot::slotExternalAppClosed(TDEProcess *process)
{
if (process && m_tmpFiles.contains(process))
{
KTempFile *tmpFile = m_tmpFiles[process];
if (tmpFile)
{
snapshot.load(tmpFile->name());
updatePreview();
tmpFile->unlink();
delete tmpFile;
}
m_tmpFiles.remove(process);
}
}
void KSnapshot::slotAboutToQuit()
{
for (KTempFile *tmpFile : m_tmpFiles)
{
tmpFile->unlink();
delete tmpFile;
}
m_tmpFiles.clear();
TDEConfig *conf=TDEGlobal::config();
conf->setGroup("GENERAL");
conf->writeEntry("delay",mainWidget->delay());
conf->writeEntry("mode",mainWidget->mode());
conf->writeEntry("includeDecorations",mainWidget->includeDecorations());
KURL url = filename;
url.setPass( TQString() );
conf->writePathEntry("filename",url.url());
}
void KSnapshot::closeEvent( TQCloseEvent * e )
{
e->accept();
}
bool KSnapshot::eventFilter( TQObject* o, TQEvent* e)
{
if ( o == grabber && e->type() == TQEvent::MouseButtonPress ) {
TQMouseEvent* me = (TQMouseEvent*) e;
if ( TQWidget::mouseGrabber() != grabber )
return false;
if ( me->button() == Qt::LeftButton )
performGrab();
}
return false;
}
void KSnapshot::autoincFilename()
{
// Extract the filename from the path
TQString name= filename.fileName();
// If the name contains a number then increment it
TQRegExp numSearch("[0-9]+");
// Does it have a number?
int start = numSearch.search(name);
if (start != -1) {
// It has a number, increment it
int len = numSearch.matchedLength();
TQString numAsStr= name.mid(start, len);
TQString number = TQString::number(numAsStr.toInt() + 1);
number = number.rightJustify( len, '0');
name.replace(start, len, number );
}
else {
// no number
start = name.findRev('.');
if (start != -1) {
// has a . somewhere, e.g. it has an extension
name.insert(start, '1');
}
else {
// no extension, just tack it on to the end
name += '1';
}
}
//Rebuild the path
KURL newURL = filename;
newURL.setFileName( name );
setURL( newURL.url() );
}
void KSnapshot::updatePreview()
{
mainWidget->setPreview( snapshot );
}
void KSnapshot::grabTimerDone()
{
if ( mainWidget->mode() == Region ) {
rgnGrab = new RegionGrabber();
connect( rgnGrab, TQT_SIGNAL( regionGrabbed( const TQPixmap & ) ),
TQT_SLOT( slotRegionGrabbed( const TQPixmap & ) ) );
}
else {
performGrab();
}
KNotifyClient::beep(i18n("The screen has been successfully grabbed."));
}
void KSnapshot::performGrab()
{
grabber->releaseMouse();
grabber->hide();
grabTimer.stop();
if ( mainWidget->mode() == ChildWindow ) {
WindowGrabber wndGrab;
connect( &wndGrab, TQT_SIGNAL( windowGrabbed( const TQPixmap & ) ),
TQT_SLOT( slotWindowGrabbed( const TQPixmap & ) ) );
wndGrab.exec();
}
else if ( mainWidget->mode() == WindowUnderCursor ) {
snapshot = WindowGrabber::grabCurrent( mainWidget->includeDecorations() );
}
else {
snapshot = TQPixmap::grabWindow( tqt_xrootwin() );
}
updatePreview();
TQApplication::restoreOverrideCursor();
modified = true;
updateCaption();
move(oldWinPos);
show();
}
void KSnapshot::setTime(int newTime)
{
mainWidget->setDelay(newTime);
}
int KSnapshot::timeout()
{
return mainWidget->delay();
}
void KSnapshot::setURL( const TQString &url )
{
KURL newURL = KURL::fromPathOrURL( url );
if ( newURL == filename )
return;
filename = newURL;
updateCaption();
}
void KSnapshot::setGrabMode( int m )
{
mainWidget->setMode( m );
}
int KSnapshot::grabMode()
{
return mainWidget->mode();
}
void KSnapshot::updateCaption()
{
setCaption( kApp->makeStdCaption( filename.fileName(), true, modified ) );
}
void KSnapshot::slotMovePointer(int x, int y)
{
TQCursor::setPos( x, y );
}
void KSnapshot::exit()
{
reject();
}
#include "ksnapshot.moc"