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tdesdk/cervisia/diffdlg.cpp

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/*
* Copyright (C) 1999-2002 Bernd Gehrmann
* bernd@mail.berlios.de
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "diffdlg.h"
#include <tqpushbutton.h>
#include <tqcheckbox.h>
#include <tqcombobox.h>
#include <tqlabel.h>
#include <tqlayout.h>
#include <tqkeycode.h>
#include <tqfileinfo.h>
#include <tqregexp.h>
#include <kconfig.h>
#include <kfiledialog.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <ktempfile.h>
#include <kprocess.h>
#include "cvsservice_stub.h"
#include "repository_stub.h"
#include "misc.h"
#include "progressdlg.h"
#include "diffview.h"
DiffDialog::DiffDialog(KConfig& cfg, TQWidget *parent, const char *name, bool modal)
: KDialogBase(parent, name, modal, TQString(),
Close | Help | User1, Close, true, KStdGuiItem::saveAs())
, partConfig(cfg)
{
items.setAutoDelete(true);
markeditem = -1;
TQFrame* mainWidget = makeMainWidget();
TQBoxLayout *tqlayout = new TQVBoxLayout(mainWidget, 0, spacingHint());
TQGridLayout *pairtqlayout = new TQGridLayout(tqlayout);
pairtqlayout->setRowStretch(0, 0);
pairtqlayout->setRowStretch(1, 1);
pairtqlayout->setColStretch(1, 0);
pairtqlayout->addColSpacing(1, 16);
pairtqlayout->setColStretch(0, 10);
pairtqlayout->setColStretch(2, 10);
revlabel1 = new TQLabel(mainWidget);
pairtqlayout->addWidget(revlabel1, 0, 0);
revlabel2 = new TQLabel(mainWidget);
pairtqlayout->addWidget(revlabel2, 0, 2);
diff1 = new DiffView(cfg, true, false, mainWidget);
diff2 = new DiffView(cfg, true, true, mainWidget);
DiffZoomWidget *zoom = new DiffZoomWidget(cfg, mainWidget);
zoom->setDiffView(diff2);
pairtqlayout->addWidget(diff1, 1, 0);
pairtqlayout->addWidget(zoom, 1, 1);
pairtqlayout->addWidget(diff2, 1, 2);
diff1->setPartner(diff2);
diff2->setPartner(diff1);
syncbox = new TQCheckBox(i18n("Synchronize scroll bars"), mainWidget);
syncbox->setChecked(true);
connect( syncbox, TQT_SIGNAL(toggled(bool)),
this, TQT_SLOT(toggleSynchronize(bool)) );
itemscombo = new TQComboBox(mainWidget);
itemscombo->insertItem(TQString());
connect( itemscombo, TQT_SIGNAL(activated(int)),
this, TQT_SLOT(comboActivated(int)) );
nofnlabel = new TQLabel(mainWidget);
// avoids auto resize when the text is changed
nofnlabel->setMinimumWidth(fontMetrics().width(i18n("%1 differences").tqarg(10000)));
backbutton = new TQPushButton(TQString::fromLatin1("&<<"), mainWidget);
connect( backbutton, TQT_SIGNAL(clicked()), TQT_SLOT(backClicked()) );
forwbutton = new TQPushButton(TQString::fromLatin1("&>>"), mainWidget);
connect( forwbutton, TQT_SIGNAL(clicked()), TQT_SLOT(forwClicked()) );
connect( this, TQT_SIGNAL(user1Clicked()), TQT_SLOT(saveAsClicked()) );
TQBoxLayout *buttontqlayout = new TQHBoxLayout(tqlayout);
buttontqlayout->addWidget(syncbox, 0);
buttontqlayout->addStretch(4);
buttontqlayout->addWidget(itemscombo);
buttontqlayout->addStretch(1);
buttontqlayout->addWidget(nofnlabel);
buttontqlayout->addStretch(1);
buttontqlayout->addWidget(backbutton);
buttontqlayout->addWidget(forwbutton);
setHelp("diff");
setWFlags(TQt::WDestructiveClose | getWFlags());
TQSize size = configDialogSize(partConfig, "DiffDialog");
resize(size);
KConfigGroupSaver cs(&partConfig, "DiffDialog");
syncbox->setChecked(partConfig.readBoolEntry("Sync"));
}
DiffDialog::~DiffDialog()
{
saveDialogSize(partConfig, "DiffDialog");
KConfigGroupSaver cs(&partConfig, "DiffDialog");
partConfig.writeEntry("Sync", syncbox->isChecked());
}
void DiffDialog::keyPressEvent(TQKeyEvent *e)
{
switch (e->key())
{
case Key_Up:
diff1->up();
diff2->up();
break;
case Key_Down:
diff1->down();
diff2->down();
break;
case Key_Next:
diff1->next();
diff2->next();
break;
case Key_Prior:
diff1->prior();
diff2->prior();
break;
default:
KDialogBase::keyPressEvent(e);
}
}
void DiffDialog::toggleSynchronize(bool b)
{
diff1->setPartner(b? diff2 : 0);
diff2->setPartner(b? diff1 : 0);
}
void DiffDialog::comboActivated(int index)
{
updateHighlight(index-1);
}
static void interpretRegion(TQString line, int *linenoA, int *linenoB)
{
TQRegExp region( "^@@ -([0-9]+),([0-9]+) \\+([0-9]+),([0-9]+) @@.*$" );
if (!region.exactMatch(line))
return;
*linenoA = region.cap(1).toInt() - 1;
*linenoB = region.cap(3).toInt() - 1;
}
static TQString regionAsString(int linenoA, int linecountA, int linenoB, int linecountB)
{
int lineendA = linenoA+linecountA-1;
int lineendB = linenoB+linecountB-1;
TQString res;
if (linecountB == 0)
res = TQString("%1,%2d%3").tqarg(linenoA).tqarg(lineendA).tqarg(linenoB-1);
else if (linecountA == 0)
res = TQString("%1a%2,%3").tqarg(linenoA-1).tqarg(linenoB).tqarg(lineendB);
else if (linenoA == lineendA)
if (linenoB == lineendB)
res = TQString("%1c%2").tqarg(linenoA).tqarg(linenoB);
else
res = TQString("%1c%2,%3").tqarg(linenoA).tqarg(linenoB).tqarg(lineendB);
else if (linenoB == lineendB)
res = TQString("%1,%2c%3").tqarg(linenoA).tqarg(lineendA).tqarg(linenoB);
else
res = TQString("%1,%2c%3,%4").tqarg(linenoA).tqarg(lineendA).tqarg(linenoB).tqarg(lineendB);
return res;
}
class DiffItem
{
public:
DiffView::DiffType type;
int linenoA, linecountA;
int linenoB, linecountB;
};
bool DiffDialog::parseCvsDiff(CvsService_stub* service, const TQString& fileName,
const TQString &revA, const TQString &revB)
{
TQStringList linesA, linesB;
int linenoA, linenoB;
setCaption(i18n("CVS Diff: %1").tqarg(fileName));
revlabel1->setText( revA.isEmpty()?
i18n("Repository:")
: i18n("Revision ")+revA+":" );
revlabel2->setText( revB.isEmpty()?
i18n("Working dir:")
: i18n("Revision ")+revB+":" );
KConfigGroupSaver cs(&partConfig, "General");
// Ok, this is a hack: When the user wants an external diff
// front end, it is executed from here. Of course, in that
// case this dialog wouldn't have to be created in the first
// place, but this design at least makes the handling trans-
// parent for the calling routines
TQString extdiff = partConfig.readPathEntry("ExternalDiff");
if (!extdiff.isEmpty())
{
callExternalDiff(extdiff, service, fileName, revA, revB);
return false;
}
const TQString diffOptions = partConfig.readEntry("DiffOptions");
const unsigned contextLines = partConfig.readUnsignedNumEntry("ContextLines", 65535);
DCOPRef job = service->diff(fileName, revA, revB, diffOptions, contextLines);
if( !service->ok() )
return false;
ProgressDialog dlg(this, "Diff", job, "diff", i18n("CVS Diff"));
if( !dlg.execute() )
return false;
// remember diff output for "save as" action
m_diffOutput = dlg.getOutput();
TQString line;
while ( dlg.getLine(line) && !line.startsWith("+++"))
;
linenoA = linenoB = 0;
while ( dlg.getLine(line) )
{
// line contains diff region?
if (line.startsWith("@@"))
{
interpretRegion(line, &linenoA, &linenoB);
diff1->addLine(line, DiffView::Separator);
diff2->addLine(line, DiffView::Separator);
continue;
}
if (line.length() < 1)
continue;
TQChar marker = line[0];
line.remove(0, 1);
if (marker == '-')
linesA.append(line);
else if (marker == '+')
linesB.append(line);
else
{
if (!linesA.isEmpty() || !linesB.isEmpty())
{
newDiffHunk(linenoA, linenoB, linesA, linesB);
linesA.clear();
linesB.clear();
}
diff1->addLine(line, DiffView::Unchanged, ++linenoA);
diff2->addLine(line, DiffView::Unchanged, ++linenoB);
}
}
if (!linesA.isEmpty() || !linesB.isEmpty())
newDiffHunk(linenoA, linenoB, linesA, linesB);
// sets the right size as there is no more auto resize in TQComboBox
itemscombo->adjustSize();
updateNofN();
return true;
}
void DiffDialog::newDiffHunk(int& linenoA, int& linenoB,
const TQStringList& linesA, const TQStringList& linesB)
{
DiffItem *item = new DiffItem;
item->linenoA = linenoA+1;
item->linenoB = linenoB+1;
item->linecountA = linesA.count();
item->linecountB = linesB.count();
items.append(item);
const TQString region = regionAsString(linenoA+1, linesA.count(),
linenoB+1, linesB.count());
itemscombo->insertItem(region);
TQStringList::ConstIterator itA = linesA.begin();
TQStringList::ConstIterator itB = linesB.begin();
while (itA != linesA.end() || itB != linesB.end())
{
if (itA != linesA.end())
{
diff1->addLine(*itA, DiffView::Neutral, ++linenoA);
if (itB != linesB.end())
diff2->addLine(*itB, DiffView::Change, ++linenoB);
else
diff2->addLine("", DiffView::Delete);
}
else
{
diff1->addLine("", DiffView::Neutral);
diff2->addLine(*itB, DiffView::Insert, ++linenoB);
}
if (itA != linesA.end())
++itA;
if (itB != linesB.end())
++itB;
}
}
void DiffDialog::callExternalDiff(const TQString& extdiff, CvsService_stub* service,
const TQString& fileName, const TQString &revA,
const TQString &revB)
{
TQString extcmdline = extdiff;
extcmdline += " ";
// create suffix for temporary file (used TQFileInfo to remove path from file name)
const TQString suffix = "-" + TQFileInfo(fileName).fileName();
DCOPRef job;
if (!revA.isEmpty() && !revB.isEmpty())
{
// We're comparing two revisions
TQString revAFilename = tempFileName(suffix+TQString("-")+revA);
TQString revBFilename = tempFileName(suffix+TQString("-")+revB);
// download the files for revision A and B
job = service->downloadRevision(fileName, revA, revAFilename,
revB, revBFilename);
if( !service->ok() )
return;
extcmdline += KProcess::quote(revAFilename);
extcmdline += " ";
extcmdline += KProcess::quote(revBFilename);
}
else
{
// We're comparing to a file, and perhaps one revision
TQString revAFilename = tempFileName(suffix+TQString("-")+revA);
job = service->downloadRevision(fileName, revA, revAFilename);
if( !service->ok() )
return;
extcmdline += KProcess::quote(revAFilename);
extcmdline += " ";
extcmdline += KProcess::quote(TQFileInfo(fileName).absFilePath());
}
ProgressDialog dlg(this, "Diff", job, "diff");
if( dlg.execute() )
{
// call external diff application
// TODO CL maybe use system()?
KProcess proc;
proc.setUseShell(true, "/bin/sh");
proc << extcmdline;
proc.start(KProcess::DontCare);
}
}
void DiffDialog::updateNofN()
{
TQString str;
if (markeditem >= 0)
str = i18n("%1 of %2").tqarg(markeditem+1).tqarg(items.count());
else
str = i18n("%1 differences").tqarg(items.count());
nofnlabel->setText(str);
itemscombo->setCurrentItem(markeditem==-2? 0 : markeditem+1);
backbutton->setEnabled(markeditem != -1);
forwbutton->setEnabled(markeditem != -2 && items.count());
}
void DiffDialog::updateHighlight(int newitem)
{
if (markeditem >= 0)
{
DiffItem *item = items.at(markeditem);
for (int i = item->linenoA; i < item->linenoA+item->linecountA; ++i)
diff1->setInverted(i, false);
for (int i = item->linenoB; i < item->linenoB+item->linecountB; ++i)
diff2->setInverted(i, false);
}
markeditem = newitem;
if (markeditem >= 0)
{
DiffItem *item = items.at(markeditem);
for (int i = item->linenoA; i < item->linenoA+item->linecountA; ++i)
diff1->setInverted(i, true);
for (int i = item->linenoB; i < item->linenoB+item->linecountB; ++i)
diff2->setInverted(i, true);
diff1->setCenterLine(item->linenoA);
diff2->setCenterLine(item->linenoB);
}
diff1->tqrepaint();
diff2->tqrepaint();
updateNofN();
}
void DiffDialog::backClicked()
{
int newitem;
if (markeditem == -1)
return; // internal error (button not disabled)
else if (markeditem == -2) // past end
newitem = items.count()-1;
else
newitem = markeditem-1;
updateHighlight(newitem);
}
void DiffDialog::forwClicked()
{
int newitem;
if (markeditem == -2 || (markeditem == -1 && !items.count()))
return; // internal error (button not disabled)
else if (markeditem+1 == (int)items.count()) // past end
newitem = -2;
else
newitem = markeditem+1;
updateHighlight(newitem);
}
void DiffDialog::saveAsClicked()
{
TQString fileName = KFileDialog::getSaveFileName(TQString(), TQString(), this);
if( fileName.isEmpty() )
return;
if( !Cervisia::CheckOverwrite(fileName, this) )
return;
TQFile f(fileName);
if( !f.open(IO_WriteOnly) )
{
KMessageBox::sorry(this,
i18n("Could not open file for writing."),
"Cervisia");
return;
}
TQTextStream ts(&f);
TQStringList::Iterator it = m_diffOutput.begin();
for( ; it != m_diffOutput.end(); ++it )
ts << *it << "\n";
f.close();
}
#include "diffdlg.moc"
// Local Variables:
// c-basic-offset: 4
// End:
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