1 | /* $Id: VBoxAboutDlg.cpp 104358 2024-04-18 05:33:40Z vboxsync $ */
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2 | /** @file
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3 | * VBox Qt GUI - VBoxAboutDlg class implementation.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * SPDX-License-Identifier: GPL-3.0-only
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26 | */
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27 |
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28 | /* Qt includes: */
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29 | #include <QEvent>
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30 | #include <QLabel>
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31 | #include <QPainter>
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32 | #include <QPushButton>
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33 | #include <QVBoxLayout>
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34 | #include <QWindow>
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35 |
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36 | /* GUI includes: */
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37 | #include "QIDialogButtonBox.h"
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38 | #include "UIIconPool.h"
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39 | #include "UITranslationEventListener.h"
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40 | #include "UIVersion.h"
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41 | #include "VBoxAboutDlg.h"
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42 | #ifdef VBOX_WS_MAC
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43 | # include "UIDesktopWidgetWatchdog.h"
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44 | #endif
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45 |
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46 | /* Other VBox includes: */
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47 | #include <iprt/path.h> /* RTPathExecDir */
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48 | #include <VBox/version.h> /* VBOX_VENDOR */
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49 |
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50 |
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51 | VBoxAboutDlg::VBoxAboutDlg(QWidget *pParent, const QString &strVersion)
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52 | #ifdef VBOX_WS_MAC
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53 | // No need for About dialog parent on macOS.
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54 | // First of all, non of other native apps (Safari, App Store, iTunes) centers About dialog according the app itself, they do
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55 | // it according to screen instead, we should do it as well. Besides that since About dialog is not modal, it will be in
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56 | // conflict with modal dialogs if there will be a parent passed, because the dialog will not have own event-loop in that case.
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57 | : QDialog(0)
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58 | , m_pPseudoParent(pParent)
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59 | #else
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60 | // On other hosts we will keep the current behavior for now.
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61 | // First of all it's quite difficult to find native (Metro UI) Windows app which have About dialog at all. But non-native
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62 | // cross-platform apps (Qt Creator, VLC) centers About dialog according the app exactly.
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63 | : QDialog(pParent)
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64 | , m_pPseudoParent(0)
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65 | #endif
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66 | , m_fPolished(false)
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67 | , m_strVersion(strVersion)
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68 | , m_pMainLayout(0)
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69 | , m_pLabel(0)
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70 | {
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71 | prepare();
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72 | }
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73 |
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74 | void VBoxAboutDlg::showEvent(QShowEvent *pEvent)
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75 | {
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76 | /* Call to base-class: */
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77 | QDialog::showEvent(pEvent);
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78 |
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79 | /* Polish once: */
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80 | if (!m_fPolished)
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81 | {
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82 | m_fPolished = true;
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83 | setFixedSize(m_size);
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84 | #ifdef VBOX_WS_MAC
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85 | /* Center according to parent's screen: */
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86 | QRect geo = geometry();
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87 | geo.moveCenter(gpDesktop->screenGeometry(m_pPseudoParent).center());
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88 | setGeometry(geo);
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89 | #endif
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90 | }
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91 | }
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92 |
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93 | void VBoxAboutDlg::paintEvent(QPaintEvent *)
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94 | {
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95 | /* Draw About-VirtualBox background image: */
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96 | QPainter painter(this);
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97 | painter.drawPixmap(0, 0, m_pixmap);
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98 | }
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99 |
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100 | void VBoxAboutDlg::sltRetranslateUI()
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101 | {
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102 | setWindowTitle(tr("VirtualBox - About"));
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103 |
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104 | if (m_pLabel)
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105 | {
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106 | const QString strAboutText = tr("VirtualBox Graphical User Interface");
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107 | #ifdef VBOX_BLEEDING_EDGE
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108 | const QString strVersionText = "EXPERIMENTAL build %1 - " + QString(VBOX_BLEEDING_EDGE);
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109 | #else
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110 | const QString strVersionText = tr("Version %1");
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111 | #endif
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112 | #ifdef VBOX_OSE
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113 | m_strAboutText = strAboutText + " " + strVersionText.arg(m_strVersion) + "\n"
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114 | + QString("%1 2004-" VBOX_C_YEAR " " VBOX_VENDOR).arg(QChar(0xa9));
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115 | #else
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116 | m_strAboutText = strAboutText + "\n" + strVersionText.arg(m_strVersion);
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117 | #endif
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118 | m_strAboutText = m_strAboutText + QString(" (Qt%1)").arg(qVersion());
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119 | m_strAboutText = m_strAboutText + "\n" + QString("Copyright %1 %2 %3.")
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120 | .arg(QChar(0xa9)).arg(VBOX_C_YEAR).arg(VBOX_VENDOR);
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121 | m_pLabel->setText(m_strAboutText);
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122 | }
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123 | }
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124 |
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125 | void VBoxAboutDlg::prepare()
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126 | {
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127 | /* Delete dialog on close: */
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128 | setAttribute(Qt::WA_DeleteOnClose);
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129 | /* Do not count that window as important for application,
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130 | * it will NOT be taken into account when other top-level windows will be closed: */
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131 | setAttribute(Qt::WA_QuitOnClose, false);
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132 |
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133 | /* Make sure the dialog is deleted on pseudo-parent destruction: */
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134 | if (m_pPseudoParent)
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135 | connect(m_pPseudoParent, &QObject::destroyed, this, &VBoxAboutDlg::close);
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136 |
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137 | /* Choose default image: */
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138 | QString strPath(":/about.png");
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139 |
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140 | /* Branding: Use a custom about splash picture if set: */
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141 | const QString strSplash = UIVersionInfo::brandingGetKey("UI/AboutSplash");
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142 | if (UIVersionInfo::brandingIsActive() && !strSplash.isEmpty())
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143 | {
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144 | char szExecPath[1024];
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145 | RTPathExecDir(szExecPath, 1024);
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146 | QString strTmpPath = QString("%1/%2").arg(szExecPath).arg(strSplash);
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147 | if (QFile::exists(strTmpPath))
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148 | strPath = strTmpPath;
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149 | }
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150 |
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151 | /* Load image: */
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152 | const QIcon icon = UIIconPool::iconSet(strPath);
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153 | m_size = QSize(640, 480);
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154 | QWidget *pParent = m_pPseudoParent ? m_pPseudoParent : parentWidget();
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155 | const qreal fDevicePixelRatio = pParent ? pParent->windowHandle()->devicePixelRatio() : 1;
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156 | m_pixmap = icon.pixmap(m_size, fDevicePixelRatio);
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157 |
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158 | /* Prepare main-layout: */
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159 | prepareMainLayout();
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160 |
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161 | /* Translate: */
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162 | sltRetranslateUI();
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163 | connect(&translationEventListener(), &UITranslationEventListener::sigRetranslateUI,
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164 | this, &VBoxAboutDlg::sltRetranslateUI);
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165 | }
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166 |
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167 | void VBoxAboutDlg::prepareMainLayout()
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168 | {
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169 | /* Create main-layout: */
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170 | m_pMainLayout = new QVBoxLayout(this);
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171 | if (m_pMainLayout)
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172 | {
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173 | /* Prepare stuff: */
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174 | prepareLabel();
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175 | prepareCloseButton();
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176 | }
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177 | }
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178 |
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179 | void VBoxAboutDlg::prepareLabel()
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180 | {
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181 | /* Create label for version text: */
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182 | m_pLabel = new QLabel(this);
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183 | if (m_pLabel)
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184 | {
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185 | /* Prepare label for version text: */
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186 | QPalette palette;
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187 | /* Branding: Set a different text color (because splash also could be white),
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188 | * otherwise use white as default color: */
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189 | const QString strColor = UIVersionInfo::brandingGetKey("UI/AboutTextColor");
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190 | if (!strColor.isEmpty())
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191 | palette.setColor(QPalette::WindowText, QColor(strColor).name());
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192 | else
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193 | palette.setColor(QPalette::WindowText, Qt::black);
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194 | m_pLabel->setPalette(palette);
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195 | m_pLabel->setTextInteractionFlags(Qt::TextSelectableByMouse);
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196 | m_pLabel->setFont(font());
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197 |
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198 | /* Add label to the main-layout: */
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199 | if (m_pMainLayout)
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200 | {
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201 | m_pMainLayout->addWidget(m_pLabel);
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202 | m_pMainLayout->setAlignment(m_pLabel, Qt::AlignRight | Qt::AlignBottom);
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203 | }
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204 | }
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205 | }
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206 |
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207 | void VBoxAboutDlg::prepareCloseButton()
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208 | {
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209 | /* Create button-box: */
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210 | QIDialogButtonBox *pButtonBox = new QIDialogButtonBox(QDialogButtonBox::Close, Qt::Horizontal, this);
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211 | if (pButtonBox)
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212 | {
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213 | /* Prepare close-button: */
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214 | connect(pButtonBox, &QDialogButtonBox::rejected, this, &VBoxAboutDlg::close);
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215 |
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216 | /* Add button-box to the main-layout: */
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217 | if (m_pMainLayout)
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218 | m_pMainLayout->addWidget(pButtonBox);
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219 | }
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220 | }
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