| 1 | /* $Id: QIToolBar.cpp 102423 2023-12-01 14:23:43Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBox Qt GUI - QIToolBar 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 <QLayout>
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| 30 | #include <QMainWindow>
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| 31 | #include <QResizeEvent>
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| 32 | #ifdef VBOX_WS_MAC
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| 33 | # include <QApplication>
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| 34 | # include <QPainter>
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| 35 | # include <QPainterPath>
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| 36 | #endif
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| 37 |
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| 38 | /* GUI includes: */
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| 39 | #include "QIToolBar.h"
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| 40 | #ifdef VBOX_WS_MAC
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| 41 | # include "VBoxUtils.h"
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| 42 | #endif
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| 43 |
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| 44 |
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| 45 | QIToolBar::QIToolBar(QWidget *pParent /* = 0 */)
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| 46 | : QToolBar(pParent)
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| 47 | , m_pMainWindow(qobject_cast<QMainWindow*>(pParent))
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| 48 | #ifdef VBOX_WS_MAC
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| 49 | , m_fEmulateUnifiedToolbar(false)
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| 50 | , m_iOverallContentsWidth(0)
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| 51 | , m_iBrandingWidth(0)
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| 52 | #endif
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| 53 | {
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| 54 | prepare();
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| 55 | }
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| 56 |
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| 57 | void QIToolBar::setUseTextLabels(bool fEnable)
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| 58 | {
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| 59 | /* Determine tool-button style on the basis of passed flag: */
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| 60 | Qt::ToolButtonStyle tbs = fEnable ? Qt::ToolButtonTextUnderIcon : Qt::ToolButtonIconOnly;
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| 61 |
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| 62 | /* Depending on parent, assign this style: */
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| 63 | if (m_pMainWindow)
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| 64 | m_pMainWindow->setToolButtonStyle(tbs);
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| 65 | else
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| 66 | setToolButtonStyle(tbs);
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| 67 | }
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| 68 |
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| 69 | bool QIToolBar::useTextLabels() const
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| 70 | {
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| 71 | /* Depending on parent, return the style: */
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| 72 | if (m_pMainWindow)
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| 73 | return m_pMainWindow->toolButtonStyle() == Qt::ToolButtonTextUnderIcon;
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| 74 | else
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| 75 | return toolButtonStyle() == Qt::ToolButtonTextUnderIcon;
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| 76 | }
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| 77 |
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| 78 | #ifdef VBOX_WS_MAC
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| 79 | void QIToolBar::enableMacToolbar()
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| 80 | {
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| 81 | /* Depending on parent, enable unified title/tool-bar: */
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| 82 | if (m_pMainWindow)
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| 83 | m_pMainWindow->setUnifiedTitleAndToolBarOnMac(true);
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| 84 | }
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| 85 |
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| 86 | void QIToolBar::emulateMacToolbar()
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| 87 | {
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| 88 | /* Remember request, to be used in paintEvent: */
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| 89 | m_fEmulateUnifiedToolbar = true;
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| 90 | }
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| 91 |
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| 92 | void QIToolBar::setShowToolBarButton(bool fShow)
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| 93 | {
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| 94 | ::darwinSetShowsToolbarButton(this, fShow);
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| 95 | }
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| 96 |
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| 97 | void QIToolBar::enableBranding(const QIcon &icnBranding,
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| 98 | const QString &strBranding,
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| 99 | const QColor &clrBranding,
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| 100 | int iBrandingWidth)
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| 101 | {
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| 102 | m_icnBranding = icnBranding;
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| 103 | m_strBranding = strBranding;
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| 104 | m_clrBranding = clrBranding;
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| 105 | m_iBrandingWidth = iBrandingWidth;
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| 106 | update();
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| 107 | }
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| 108 | #endif /* VBOX_WS_MAC */
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| 109 |
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| 110 | bool QIToolBar::event(QEvent *pEvent)
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| 111 | {
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| 112 | /* Sanity check: */
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| 113 | if (!pEvent)
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| 114 | return QToolBar::event(pEvent);
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| 115 |
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| 116 | /* Handle required event types: */
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| 117 | switch (pEvent->type())
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| 118 | {
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| 119 | #ifdef VBOX_WS_MAC
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| 120 | case QEvent::LayoutRequest:
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| 121 | {
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| 122 | /* Recalculate overall contents width on layout
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| 123 | * request if we have branding stuff: */
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| 124 | if (!m_icnBranding.isNull())
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| 125 | recalculateOverallContentsWidth();
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| 126 | break;
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| 127 | }
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| 128 | #endif /* VBOX_WS_MAC */
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| 129 | default:
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| 130 | break;
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| 131 | }
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| 132 |
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| 133 | /* Call to base-class: */
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| 134 | return QToolBar::event(pEvent);
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| 135 | }
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| 136 |
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| 137 | void QIToolBar::resizeEvent(QResizeEvent *pEvent)
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| 138 | {
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| 139 | /* Call to base-class: */
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| 140 | QToolBar::resizeEvent(pEvent);
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| 141 |
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| 142 | /* Notify listeners about new size: */
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| 143 | emit sigResized(pEvent->size());
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| 144 | }
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| 145 |
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| 146 | #ifdef VBOX_WS_MAC
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| 147 | void QIToolBar::paintEvent(QPaintEvent *pEvent)
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| 148 | {
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| 149 | /* Call to base-class: */
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| 150 | QToolBar::paintEvent(pEvent);
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| 151 |
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| 152 | /* If we have request to emulate unified tool-bar: */
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| 153 | if (m_fEmulateUnifiedToolbar)
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| 154 | {
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| 155 | /* Limit painting with incoming rectangle: */
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| 156 | QPainter painter(this);
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| 157 | painter.setClipRect(pEvent->rect());
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| 158 |
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| 159 | /* Acquire full rectangle: */
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| 160 | const QRect rectangle = rect();
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| 161 |
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| 162 | /* Prepare gradient: */
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| 163 | const QColor backgroundColor = QApplication::palette().color(QPalette::Active, QPalette::Window);
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| 164 | QLinearGradient gradient(rectangle.topLeft(), rectangle.bottomLeft());
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| 165 | #if defined (VBOX_WS_MAC)
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| 166 | gradient.setColorAt(0, backgroundColor.lighter(105));
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| 167 | gradient.setColorAt(1, backgroundColor.darker(105));
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| 168 | #else
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| 169 | gradient.setColorAt(0, backgroundColor.darker(105));
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| 170 | gradient.setColorAt(1, backgroundColor.darker(115));
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| 171 | #endif
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| 172 |
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| 173 | /* Fill background: */
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| 174 | painter.fillRect(rectangle, gradient);
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| 175 |
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| 176 | /* Do we have branding stuff and a place for it? */
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| 177 | if ( !m_icnBranding.isNull()
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| 178 | && width() >= m_iOverallContentsWidth + m_iBrandingWidth)
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| 179 | {
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| 180 | /* A bit of common stuff: */
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| 181 | QFont fnt = font();
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| 182 | int iTextWidth = 0;
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| 183 | int iTextHeight = 0;
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| 184 |
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| 185 | /* Configure font to fit width (m_iBrandingWidth - 2 * 4): */
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| 186 | if (useTextLabels())
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| 187 | {
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| 188 | for (int i = 0; i <= 10; ++i) // no more than 10 tries ..
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| 189 | {
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| 190 | if (fnt.pixelSize() == -1)
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| 191 | fnt.setPointSize(fnt.pointSize() - i);
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| 192 | else
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| 193 | fnt.setPixelSize(fnt.pixelSize() - i);
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| 194 | iTextWidth = QFontMetrics(fnt).size(0, m_strBranding).width();
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| 195 | if (iTextWidth <= m_iBrandingWidth - 2 * 4)
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| 196 | break;
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| 197 | }
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| 198 | iTextHeight = QFontMetrics(fnt).height();
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| 199 | }
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| 200 |
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| 201 | /* Draw pixmap: */
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| 202 | const int iIconSize = qMin(rectangle.height(), 32 /* default */);
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| 203 | const int iIconMarginH = (m_iBrandingWidth - iIconSize) / 2;
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| 204 | const int iIconMarginV = (rectangle.height() - iIconSize - iTextHeight) / 2;
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| 205 | const int iIconX = rectangle.width() - iIconSize - iIconMarginH;
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| 206 | const int iIconY = iIconMarginV;
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| 207 | painter.drawPixmap(iIconX, iIconY, m_icnBranding.pixmap(QSize(iIconSize, iIconSize)));
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| 208 |
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| 209 | /* Draw text path: */
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| 210 | if (useTextLabels())
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| 211 | {
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| 212 | const int iTextMargingH = (m_iBrandingWidth - iTextWidth) / 2;
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| 213 | const int iTextX = rectangle.width() - iTextWidth - iTextMargingH;
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| 214 | const int iTextY = iIconY + iIconSize + iTextHeight;
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| 215 | QPainterPath textPath;
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| 216 | textPath.addText(0, 0, fnt, m_strBranding);
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| 217 | textPath.translate(iTextX, iTextY);
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| 218 | painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing);
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| 219 | painter.setPen(QPen(m_clrBranding.darker(80), 2, Qt::SolidLine, Qt::RoundCap));
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| 220 | painter.drawPath(QPainterPathStroker().createStroke(textPath));
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| 221 | painter.setBrush(Qt::black);
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| 222 | painter.setPen(Qt::NoPen);
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| 223 | painter.drawPath(textPath);
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| 224 | }
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| 225 | }
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| 226 | }
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| 227 | }
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| 228 | #endif /* VBOX_WS_MAC */
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| 229 |
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| 230 | void QIToolBar::prepare()
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| 231 | {
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| 232 | /* Configure tool-bar: */
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| 233 | setFloatable(false);
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| 234 | setMovable(false);
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| 235 |
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| 236 | #ifdef VBOX_WS_MAC
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| 237 | setStyleSheet("QToolBar { border: 0px none black; }");
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| 238 | #endif
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| 239 |
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| 240 | /* Configure tool-bar' layout: */
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| 241 | if (layout())
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| 242 | layout()->setContentsMargins(0, 0, 0, 0);
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| 243 |
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| 244 | /* Configure tool-bar' context-menu policy: */
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| 245 | setContextMenuPolicy(Qt::PreventContextMenu);
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| 246 | }
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| 247 |
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| 248 | #ifdef VBOX_WS_MAC
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| 249 | void QIToolBar::recalculateOverallContentsWidth()
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| 250 | {
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| 251 | /* Reset contents width: */
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| 252 | m_iOverallContentsWidth = 0;
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| 253 |
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| 254 | /* Caclulate new value: */
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| 255 | if (!layout())
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| 256 | return;
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| 257 | int iResult = 0;
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| 258 | const int iSpacing = layout()->spacing();
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| 259 | foreach (QAction *pAction, actions())
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| 260 | {
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| 261 | if (!pAction || !pAction->isVisible())
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| 262 | continue;
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| 263 | QWidget *pWidget = widgetForAction(pAction);
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| 264 | if (!pWidget)
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| 265 | continue;
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| 266 | /* Add each widget width and spacing: */
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| 267 | const int iWidth = pWidget->width() + iSpacing;
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| 268 | iResult += iWidth;
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| 269 | }
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| 270 | /* Subtract last spacing: */
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| 271 | iResult -= iSpacing;
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| 272 |
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| 273 | /* Update result: */
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| 274 | m_iOverallContentsWidth = qMax(m_iOverallContentsWidth, iResult);
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| 275 | }
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| 276 | #endif /* VBOX_WS_MAC */
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