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Commit f0c41af0 authored by Ilka Antcheva's avatar Ilka Antcheva
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From Valeri Fine: 

  - Add documentation.
  - Add QT_VERSION 4 CPP flag (no test has been performed against Qt4 yet).
  - Remove the redundant code.
  - Add the enforcement of the Qt-ROOT layer for Qt-applications
    to eliminate the need to adjust ".rootrc" and eventually crash.
    If user started the  Qt-application then Gui.Backend "native"
    must be treated as "qt". (thanks CMS feedback )


git-svn-id: http://root.cern.ch/svn/root/trunk@13866 27541ba8-7e3a-0410-8455-c3a389f83636
parent 629015c9
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qt/src/TQtWidget.cxx
+ 69
− 20
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// @(#)root/qt:$Name: $:$Id: TQtWidget.cxx,v 1.60 2005/12/09 03:43:45 fine Exp $
// @(#)root/qt:$Name: $:$Id: TQtWidget.cxx,v 1.67 2006/01/17 20:34:50 fine Exp $
// Author: Valeri Fine 23/01/2003
/*************************************************************************
......@@ -14,6 +14,16 @@
// "double-buffere widget
#include <qapplication.h>
#if QT_VERSION >= 0x40000
//Added by qt3to4:
#include <QFocusEvent>
#include <QPaintEvent>
#include <QKeyEvent>
#include <QShowEvent>
#include <QResizeEvent>
#include <QMouseEvent>
#include <QCustomEvent>
#endif /* QT_VERSION */
#include "TQtWidget.h"
#include "TQtTimer.h"
#include "TQtLock.h"
......@@ -48,7 +58,7 @@ ClassImp(TQtWidget)
// This widget can be used as a Qt "custom widget"
// to build a custom GUI interfaces with Qt Designer
//
// class emits Qt signals and has a Qt public slots
// The class emits the Qt signals and has Qt public slots
//
// Public slots: (Qt)
//
......@@ -66,11 +76,27 @@ ClassImp(TQtWidget)
// CanvasPainted(); // Signal the TCanvas has been painted onto the screen
// Saved(bool ok); // Signal the TCanvas has been saved into the file
// RootEventProcessed(TObject *selected, unsigned int event, TCanvas *c);
// // Signal the Qt mouse/keyboard event has been process by ROOT
//
// // Signal the Qt mouse/keyboard event has been process by ROOT
// // This "signal" is emitted by the enabled mouse events only.
// // See: EnableSignalEvents
// // --- DisableSignalEvents
//
// public methods:
// The methods below define whether the TQtWidget object emits "RootEventProcessed" Qt signals
// (By default no RootEventProcessed Qt signal is emitted )
// void EnableSignalEvents (UInt_t f)
// void DisableSignalEvents(UInt_t f),
// where f is a bitwise OR of the mouse event flags:
// kMousePressEvent // TCanvas processed QEvent mousePressEvent
// kMouseMoveEvent // TCanvas processed QEvent mouseMoveEvent
// kMouseReleaseEvent // TCanvas processed QEvent mouseReleaseEvent
// kMouseDoubleClickEvent // TCanvas processed QEvent mouseDoubleClickEvent
// kKeyPressEvent // TCanvas processed QEvent keyPressEvent
// kEnterEvent // TCanvas processed QEvent enterEvent
// kLeaveEvent // TCanvas processed QEvent leaveEvent
//
// For example to create the custom responce to the mouse crossing TCanvas
// connect the RootEventProsecced signal witrh your qt slot:
// connect the RootEventProsecced signal with your qt slot:
//
// connect(tQtWidget,SIGNAL(RootEventProcessed(TObject *, unsigned int, TCanvas *))
// ,this,SLOT(CanvasEvent(TObject *, unsigned int, TCanvas *)));
......@@ -117,12 +143,17 @@ TCanvas *TQtWidget::Canvas()
};
//_____________________________________________________________________________
TQtWidget::TQtWidget(QWidget* parent, const char* name, WFlags f,bool embedded):QWidget(parent,name,f)
TQtWidget::TQtWidget(QWidget* parent, const char* name, Qt::WFlags f,bool embedded):QWidget(parent,name,f)
,fBits(0),fCanvas(0),fPixmapID(this),fPaint(TRUE),fSizeChanged(FALSE)
,fDoubleBufferOn(FALSE),fEmbedded(embedded),fWrapper(0),fSaveFormat("PNG")
{
#if QT_VERSION < 0x40000
setFocusPolicy(QWidget::WheelFocus);
setWFlags(getWFlags () | Qt::WRepaintNoErase | Qt:: WResizeNoErase );
#else /* QT_VERSION */
setFocusPolicy(Qt::WheelFocus);
setWindowFlags(windowFlags () | Qt::WNoAutoErase | Qt:: WResizeNoErase );
#endif /* QT_VERSION */
setBackgroundMode(Qt::NoBackground);
if (fEmbedded) {
if (!gApplication) InitRint();
......@@ -130,7 +161,7 @@ TQtWidget::TQtWidget(QWidget* parent, const char* name, WFlags f,bool embedded):
if (!batch) gROOT->SetBatch(kTRUE); // to avoid the recursion within TCanvas ctor
TGQt::RegisterWid(this);
fCanvas = new TCanvas(name, 4, 4, TGQt::RegisterWid(this));
// fprintf(stderr,"TQtWidget::TQtWidget fEditable %d\n", fCanvas->IsEditable());
// fprintf(stderr,"TQtWidget::TQtWidget %p fEditable %d\n", fCanvas, fCanvas->IsEditable());
gROOT->SetBatch(batch);
}
fSizeHint = QWidget::sizeHint();
......@@ -188,14 +219,34 @@ TApplication *TQtWidget::InitRint( Bool_t /*prompt*/, const char *appClassName,
static int localArgc =0;
if (!gApplication) {
localArgc = argc ? *argc : qApp->argc();
TRint *rint = new TRint(appClassName, &localArgc, argv ? argv : qApp->argv(),options,numOptions,kFALSE);
// To mimic what TRint::Run(kTRUE) does.
const char *prompt= gEnv->GetValue("Gui.Prompt", (char*)0);
if (prompt)
// check the Gui.backend and Factory
TString guiBackend(gEnv->GetValue("Gui.Backend", "native"));
guiBackend.ToLower();
// Enforce Qt-base Gui.Backend and Gui.Factory from within ROOT-based Qt-application
if (!guiBackend.BeginsWith("qt",TString::kIgnoreCase)) {
gEnv->SetValue("Gui.Backend", "qt");
}
TString guiFactory(gEnv->GetValue("Gui.Factory", "native"));
guiFactory.ToLower();
if (!guiFactory.BeginsWith("qt",TString::kIgnoreCase )){
// Check for the extention
char *extLib = gSystem->DynamicPathName("libQtGui",kTRUE);
if (extLib) {
gEnv->SetValue("Gui.Factory", "qtgui");
} else {
gEnv->SetValue("Gui.Factory", "qt");
}
delete [] extLib;
}
TRint *rint = new TRint(appClassName, &localArgc, argv ? argv : qApp->argv(),options,numOptions,kFALSE);
// To mimic what TRint::Run(kTRUE) does.
const char *prompt= gEnv->GetValue("Gui.Prompt", (char*)0);
if (prompt)
Getlinem(kInit, rint->GetPrompt());
TQtTimer::Create()->start(0,TRUE);
}
return gApplication;
TQtTimer::Create()->start(0,TRUE);
}
return gApplication;
}
//_____________________________________________________________________________
void TQtWidget::adjustSize()
......@@ -227,7 +278,9 @@ void TQtWidget::cd(int subpadnumber)
// [slot] to make this embedded canvas / pad the current one
TQtLock lock;
TCanvas *c = fCanvas;
if (c) c->cd(subpadnumber);
if (c) {
c->cd(subpadnumber);
}
}
//______________________________________________________________________________
void TQtWidget::Disconnect()
......@@ -301,7 +354,6 @@ void TQtWidget::focusInEvent ( QFocusEvent *e )
if (!fWrapper && e->gotFocus()) {
setMouseTracking(TRUE);
}
if ( autoMask() ) updateMask();
}
//_____________________________________________________________________________
void TQtWidget::focusOutEvent ( QFocusEvent *e )
......@@ -312,7 +364,6 @@ void TQtWidget::focusOutEvent ( QFocusEvent *e )
if (!fWrapper && e->lostFocus()) {
setMouseTracking(FALSE);
}
if ( autoMask() ) updateMask();
}
//_____________________________________________________________________________
......@@ -352,7 +403,7 @@ void TQtWidget::mouseMoveEvent (QMouseEvent * e)
EEventType rootButton = kMouseMotion;
TCanvas *c = Canvas();
if (c || !fWrapper){
if (e->state() & LeftButton) { rootButton = kButton1Motion; }
if (e->state() & Qt::LeftButton) { rootButton = kButton1Motion; }
c->HandleInput(rootButton, e->x(), e->y());
e->accept(); EmitSignal(kMouseMoveEvent); return;
} else {
......@@ -482,8 +533,6 @@ void TQtWidget::resizeEvent(QResizeEvent *e)
#endif
}
if ( autoMask() )
updateMask();
}
//____________________________________________________________________________
void TQtWidget::SetSaveFormat(const char *format)
......
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