XChinux wrote:
>> Gael Martin 写道:
>>
>
>>>>XChinux wrote:
>>>>
>>>>
>>
>>>>>>but in qt 2.3.7, the function "setWindowFlags()" had not exist,
>>>>>>how can I get the same style of Qt4's splash window style?
>>
>>>>
>>>>
>>>>Cant you just upgrade to QT 4.0.1? Now that it's GPL on all platform
>>>>there's no excuses...
>>>>
>>>>Gael
>
>>
>> in qtcn.org(http://www.qtcn.org, Chinese Qt Forum)，a qter asked
>> this question. and he said he used only 2.3.7(commercial edition),so can
>> not upgrade to Qt 4.0.1。
A previous work of mine is based on Qt 2.3.x (didn't know there existed
a 2.3.7 release?) - it uses a splashscreen which does more or less what
the QSplashScreen does today. It's based on some older article which
appeared in the Qt Quarterly (you might find it on TrollTech's webpage).
Source code here: http://www.pointshop3d.com - the class is called
SplashScreen (POINTSHOP/src/Utilities/UserMessages/src/SplashScreen.h)
The trick is something like this:
// Qt 2.x
splash = new QLabel (0, "splash", Qt::WDestructiveClose |
Qt::WStyle_Customize | Qt::WStyle_NoBorder);
splash->setLineWidth(0);
splash->setMidLineWidth(0);
I have attached the relevant source code for convenience. You need to
hardcode a nice *.png path for use as splash image and it has a single
dependency on a "Version" class which provides - a version number ;)
Should be easy to adjust to your needs.
Cheers, Oliver
//
// Title: SplashScreen.cpp
// Created: Mon Sep 23 14:13:25 2002
// Authors: Oliver Knoll, Mark Pauly, Matthias Zwicker
//
// Copyright (c) 2001, 2002, Computer Graphics Lab, ETH Zurich
//
// This file is part of the Pointshop3D system.
// See http://www.pointshop3d.com/ for more information.
//
// 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., 59 Temple Place - Suite 330, Boston,
// MA 02111-1307, USA.
//
// Contact info@pointshop3d.com if any conditions of this
// licensing are not clear to you.
//
#include <qapplication.h>
#include <qlabel.h>
#include <qstring.h>
#include <qpainter.h>
#include "../../src/Version.h"
#include "SplashScreen.h"
// ******
// global
// ******
// the single SplashScreen instance, only
// accesible by getInstance() and
// destroyInstance()
static SplashScreen *instance = 0;
// *******************
// private c'tor/d'tor
// *******************
SplashScreen::SplashScreen() {
QRect rect;
splash = new QLabel (0, "splash", Qt::WDestructiveClose | Qt::WStyle_Customize | Qt::WStyle_NoBorder);
splash->setLineWidth(0);
splash->setMidLineWidth(0);
splashPixmap = QPixmap ("Resources/Splash.png");
splash->setPixmap (splashPixmap);
splash->adjustSize();
splash->setCaption ("PointShop");
rect = QApplication::desktop()->geometry();
splash->move (rect.center() - splash->rect().center());
}
SplashScreen::~SplashScreen() {
delete splash;
}
// **************
// public methods
// **************
SplashScreen *SplashScreen::getInstance() {
if (instance == 0) {
instance = new SplashScreen();
}
return instance;
}
void SplashScreen::destroyInstance() {
if (instance != 0) {
delete instance;
}
instance = 0;
}
void SplashScreen::showText (const QString text) {
QPainter painter;
painter.begin (splash);
// clear previous text
painter.setBackgroundColor (Qt::white);
painter.eraseRect ((int)(0.05f * (float)splashPixmap.width() + 0.5f),
(int)(0.75f * (float)splashPixmap.height() + 0.5f) - painter.font().pixelSize(),
splashPixmap.width() - (int)(0.10f * (float)splashPixmap.width() + 0.5f),
(int)(1.5f * painter.font().pixelSize()));
painter.setPen (Qt::black);
painter.drawText ((int)(0.05f * (float)splashPixmap.width() + 0.5f),
(int)(0.75f * (float)splashPixmap.height() + 0.5f),
text);
painter.end();
}
void SplashScreen::show() {
QPainter painter;
splash->show();
splash->repaint (false);
QApplication::flushX();
painter.begin (splash);
painter.setPen (Qt::gray);
painter.drawText ((int)(0.8f * (float)splashPixmap.width() + 0.5f),
(int)(0.035f * (float)splashPixmap.height() + 0.5f),
"Version " + Version::toString());
painter.drawText ((int)(0.025f * (float)splashPixmap.width() + 0.5f),
(int)(0.990f * (float)splashPixmap.height() + 0.5f),
Version::getVersionDate().toString() + " \"" + Version::getCodeName() + "\"");
painter.drawText ((int)(0.05f * (float)splashPixmap.width() + 0.5f),
(int)(0.8f * (float)splashPixmap.height() + 0.5f),
"PointShop by Oliver Knoll, Matthias Zwicker & Mark Pauly");
painter.drawText ((int)(0.05f * (float)splashPixmap.width() + 0.5f),
(int)(0.8f * (float)splashPixmap.height() + 1.2f * (float)painter.font().pixelSize() + 0.5f),
"OpenGL renderer extensions and SFL file format by Tim Weyrich");
painter.drawText ((int)(0.05f * (float)splashPixmap.width() + 0.5f),
(int)(0.8f * (float)splashPixmap.height() + 2.4f * (float)painter.font().pixelSize() + 0.5f),
"(c) 2001, 2002");
#if defined _DEBUG
painter.setPen (Qt::red);
painter.drawText ((int)(0.9f * (float)splashPixmap.width() + 0.5f),
(int)(0.8f * (float)splashPixmap.height() + 0.5f),
"DEBUG");
#endif
painter.end();
}
void SplashScreen::hide() {
splash->hide();
}
// Some Emacs-Hints -- please don't remove:
//
// Local Variables:
// mode:C++
// tab-width:4
// End:
//
// Title: SplashScreen.h
// Created: Mon Sep 23 14:13:19 2002
// Authors: Oliver Knoll, Mark Pauly, Matthias Zwicker
//
// Copyright (c) 2001, 2002, Computer Graphics Lab, ETH Zurich
//
// This file is part of the Pointshop3D system.
// See http://www.pointshop3d.com/ for more information.
//
// 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., 59 Temple Place - Suite 330, Boston,
// MA 02111-1307, USA.
//
// Contact info@pointshop3d.com if any conditions of this
// licensing are not clear to you.
//
#ifndef __SPLASHSCREEN_H_
#define __SPLASHSCREEN_H_
#include <qlabel.h>
#include <qstring.h>
#include <qpixmap.h>
#include <qimage.h>
#include "../../src/UtilitiesDLL.h"
/**
* This class implements a nice splash screen, which pops up
* before the application starts (I always wanted to do such
* a thing ;)
*
* @author Oliver Knoll
* @version 1.2
*/
class SplashScreen {
public:
/**
* This method creates an instance of this <code>SplashScreen</code>, if necessary,
* and returns it. Only one instance at a time exists (singleton pattern).
*
* @return an instance of this <code>SplashScreen</code>
*/
UTILITIES_API static SplashScreen *getInstance();
/**
* Destroys the instance of this <code>SplashScreen</code>, if there
* is one. Also <code>hide</code>s the splash screen, if not already
* done.
*
* @see #hide
*/
UTILITIES_API static void destroyInstance();
/**
* Shows the splash screen.
*
* @see #hide
*/
UTILITIES_API void show();
/**
* Hides the splash screen.
*
* @see #show
*/
UTILITIES_API void hide();
/**
* This method shows a text while this <code>SplashScreen</code> is showing.
*
* @param text
* a <code>QString</code> which contains the text to be shown; the
* text must have reasonable length, else it is clipped
*/
UTILITIES_API void showText (const QString text);
private:
QLabel *splash;
QPixmap splashPixmap;
QImage splashImage;
// singleton pattern
SplashScreen();
virtual ~SplashScreen();
};
#endif // __SPLASHSCREEN_H_
// Some Emacs-Hints -- please don't remove:
//
// Local Variables:
// mode:C++
// tab-width:4
// End:
