148 lines
4.6 KiB
C++
148 lines
4.6 KiB
C++
// Copyright (c) 2011-2014 The Bitcoin developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "splashscreen.h"
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#include "clientversion.h"
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#include "init.h"
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#include "ui_interface.h"
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#include "util.h"
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#ifdef ENABLE_WALLET
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#include "wallet.h"
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#endif
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#include <QApplication>
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#include <QPainter>
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SplashScreen::SplashScreen(const QPixmap &pixmap, Qt::WindowFlags f, bool isTestNet) :
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QSplashScreen(pixmap, f)
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{
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setAutoFillBackground(true);
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// set reference point, paddings
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int paddingRight = 50;
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int paddingTop = 50;
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int titleVersionVSpace = 17;
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int titleCopyrightVSpace = 40;
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float fontFactor = 1.0;
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// define text to place
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QString titleText = tr("Bitcoin Core");
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QString versionText = QString("Version %1").arg(QString::fromStdString(FormatFullVersion()));
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QString copyrightText = QChar(0xA9)+QString(" 2009-%1 ").arg(COPYRIGHT_YEAR) + QString(tr("The Bitcoin Core developers"));
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QString testnetAddText = QString(tr("[testnet]")); // define text to place as single text object
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QString font = "Arial";
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// load the bitmap for writing some text over it
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QPixmap newPixmap;
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if(isTestNet) {
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newPixmap = QPixmap(":/images/splash_testnet");
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}
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else {
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newPixmap = QPixmap(":/images/splash");
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}
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QPainter pixPaint(&newPixmap);
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pixPaint.setPen(QColor(100,100,100));
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// check font size and drawing with
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pixPaint.setFont(QFont(font, 33*fontFactor));
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QFontMetrics fm = pixPaint.fontMetrics();
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int titleTextWidth = fm.width(titleText);
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if(titleTextWidth > 160) {
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// strange font rendering, Arial probably not found
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fontFactor = 0.75;
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}
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pixPaint.setFont(QFont(font, 33*fontFactor));
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fm = pixPaint.fontMetrics();
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titleTextWidth = fm.width(titleText);
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pixPaint.drawText(newPixmap.width()-titleTextWidth-paddingRight,paddingTop,titleText);
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pixPaint.setFont(QFont(font, 15*fontFactor));
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// if the version string is to long, reduce size
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fm = pixPaint.fontMetrics();
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int versionTextWidth = fm.width(versionText);
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if(versionTextWidth > titleTextWidth+paddingRight-10) {
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pixPaint.setFont(QFont(font, 10*fontFactor));
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titleVersionVSpace -= 5;
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}
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pixPaint.drawText(newPixmap.width()-titleTextWidth-paddingRight+2,paddingTop+titleVersionVSpace,versionText);
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// draw copyright stuff
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pixPaint.setFont(QFont(font, 10*fontFactor));
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pixPaint.drawText(newPixmap.width()-titleTextWidth-paddingRight,paddingTop+titleCopyrightVSpace,copyrightText);
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// draw testnet string if testnet is on
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if(isTestNet) {
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QFont boldFont = QFont(font, 10*fontFactor);
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boldFont.setWeight(QFont::Bold);
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pixPaint.setFont(boldFont);
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fm = pixPaint.fontMetrics();
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int testnetAddTextWidth = fm.width(testnetAddText);
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pixPaint.drawText(newPixmap.width()-testnetAddTextWidth-10,15,testnetAddText);
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}
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pixPaint.end();
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this->setPixmap(newPixmap);
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subscribeToCoreSignals();
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}
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SplashScreen::~SplashScreen()
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{
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unsubscribeFromCoreSignals();
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}
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void SplashScreen::slotFinish(QWidget *mainWin)
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{
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finish(mainWin);
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}
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static void InitMessage(SplashScreen *splash, const std::string &message)
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{
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QMetaObject::invokeMethod(splash, "showMessage",
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Qt::QueuedConnection,
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Q_ARG(QString, QString::fromStdString(message)),
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Q_ARG(int, Qt::AlignBottom|Qt::AlignHCenter),
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Q_ARG(QColor, QColor(55,55,55)));
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}
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static void ShowProgress(SplashScreen *splash, const std::string &title, int nProgress)
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{
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InitMessage(splash, title + strprintf("%d", nProgress) + "%");
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}
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#ifdef ENABLE_WALLET
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static void ConnectWallet(SplashScreen *splash, CWallet* wallet)
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{
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wallet->ShowProgress.connect(boost::bind(ShowProgress, splash, _1, _2));
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}
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#endif
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void SplashScreen::subscribeToCoreSignals()
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{
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// Connect signals to client
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uiInterface.InitMessage.connect(boost::bind(InitMessage, this, _1));
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uiInterface.ShowProgress.connect(boost::bind(ShowProgress, this, _1, _2));
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#ifdef ENABLE_WALLET
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uiInterface.LoadWallet.connect(boost::bind(ConnectWallet, this, _1));
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#endif
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}
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void SplashScreen::unsubscribeFromCoreSignals()
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{
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// Disconnect signals from client
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uiInterface.InitMessage.disconnect(boost::bind(InitMessage, this, _1));
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uiInterface.ShowProgress.disconnect(boost::bind(ShowProgress, this, _1, _2));
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#ifdef ENABLE_WALLET
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if(pwalletMain)
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pwalletMain->ShowProgress.disconnect(boost::bind(ShowProgress, this, _1, _2));
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#endif
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}
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