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/*
SPDX-FileCopyrightText: 2008-2014 Eike Hein <hein@kde.org>
SPDX-FileCopyrightText: 2020 Ryan McCoskrie <work@ryanmccoskrie.me>
SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
*/
#include "titlebar.h"
#include "mainwindow.h"
#include "skin.h"
#include <KLocalizedString>
#include <QFontDatabase>
#include <QPushButton>
#include <QBitmap>
#include <QPainter>
TitleBar::TitleBar(MainWindow *mainWindow)
: QWidget(mainWindow)
{
setWhatsThis(xi18nc("@info:whatsthis",
"<title>Title Bar</title>"
"<para>The title bar displays the session title if available.</para>"));
setAttribute(Qt::WA_OpaquePaintEvent);
m_mainWindow = mainWindow;
m_skin = mainWindow->skin();
setCursor(Qt::SizeVerCursor);
m_focusButton = new QPushButton(this);
m_focusButton->setFocusPolicy(Qt::NoFocus);
m_focusButton->setCheckable(true);
m_focusButton->setToolTip(xi18nc("@info:tooltip", "Keep window open when it loses focus"));
m_focusButton->setWhatsThis(xi18nc("@info:whatsthis", "If this is checked, the window will stay open when it loses focus."));
m_focusButton->setCursor(Qt::ArrowCursor);
connect(m_focusButton, SIGNAL(toggled(bool)), mainWindow, SLOT(setKeepOpen(bool)));
m_menuButton = new QPushButton(this);
m_menuButton->setFocusPolicy(Qt::NoFocus);
m_menuButton->setMenu(mainWindow->menu());
m_menuButton->setToolTip(xi18nc("@info:tooltip", "Open Menu"));
m_menuButton->setWhatsThis(xi18nc("@info:whatsthis", "Opens the main menu."));
m_menuButton->setCursor(Qt::ArrowCursor);
m_quitButton = new QPushButton(this);
m_quitButton->setFocusPolicy(Qt::NoFocus);
m_quitButton->setToolTip(xi18nc("@info:tooltip Quits the application", "Quit"));
m_quitButton->setWhatsThis(xi18nc("@info:whatsthis", "Quits the application."));
m_quitButton->setCursor(Qt::ArrowCursor);
connect(m_quitButton, SIGNAL(clicked()), mainWindow, SLOT(close()));
}
TitleBar::~TitleBar() = default;
void TitleBar::setVisible(bool visible)
{
m_visible = visible;
if (m_visible) {
resize(width(), m_skin->titleBarBackgroundImage().height());
} else {
resize(width(), 0);
}
QWidget::setVisible(m_visible);
}
void TitleBar::applySkin()
{
resize(width(), m_visible ? m_skin->titleBarBackgroundImage().height() : 0);
m_focusButton->setStyleSheet(m_skin->titleBarFocusButtonStyleSheet());
m_menuButton->setStyleSheet(m_skin->titleBarMenuButtonStyleSheet());
m_quitButton->setStyleSheet(m_skin->titleBarQuitButtonStyleSheet());
moveButtons();
repaint();
updateMask();
}
void TitleBar::moveButtons()
{
if (m_skin->titleBarFocusButtonAnchor() == Qt::AnchorLeft)
m_focusButton->move(m_skin->titleBarFocusButtonPosition().x(), m_skin->titleBarFocusButtonPosition().y());
else if (m_skin->titleBarFocusButtonAnchor() == Qt::AnchorRight)
m_focusButton->move(width() - m_skin->titleBarFocusButtonPosition().x(), m_skin->titleBarFocusButtonPosition().y());
if (m_skin->titleBarMenuButtonAnchor() == Qt::AnchorLeft)
m_menuButton->move(m_skin->titleBarMenuButtonPosition().x(), m_skin->titleBarMenuButtonPosition().y());
else if (m_skin->titleBarMenuButtonAnchor() == Qt::AnchorRight)
m_menuButton->move(width() - m_skin->titleBarMenuButtonPosition().x(), m_skin->titleBarMenuButtonPosition().y());
if (m_skin->titleBarQuitButtonAnchor() == Qt::AnchorLeft)
m_quitButton->move(m_skin->titleBarQuitButtonPosition().x(), m_skin->titleBarQuitButtonPosition().y());
else if (m_skin->titleBarQuitButtonAnchor() == Qt::AnchorRight)
m_quitButton->move(width() - m_skin->titleBarQuitButtonPosition().x(), m_skin->titleBarQuitButtonPosition().y());
}
void TitleBar::resizeEvent(QResizeEvent *event)
{
moveButtons();
updateMask();
QWidget::resizeEvent(event);
}
void TitleBar::paintEvent(QPaintEvent *)
{
QPainter painter(this);
painter.setPen(m_skin->titleBarTextColor());
const QPixmap &backgroundImage = m_skin->titleBarBackgroundImage();
const QPixmap &leftCornerImage = m_skin->titleBarLeftCornerImage();
const QPixmap &rightCornerImage = m_skin->titleBarRightCornerImage();
painter.drawTiledPixmap(leftCornerImage.width(), 0, width() - leftCornerImage.width() - rightCornerImage.width(), height(), backgroundImage);
painter.drawPixmap(0, 0, leftCornerImage);
painter.drawPixmap(width() - rightCornerImage.width(), 0, rightCornerImage);
QFont font = QFontDatabase::systemFont(QFontDatabase::TitleFont);
font.setBold(m_skin->titleBarTextBold());
painter.setFont(font);
const QString titleAsString = this->title();
if (m_skin->titleBarTextCentered()
&& width() > m_skin->titleBarTextPosition().x() + painter.fontMetrics().horizontalAdvance(titleAsString) + m_focusButton->width()
+ m_quitButton->width() + m_menuButton->width())
painter.drawText(0, 0, width(), height(), Qt::AlignCenter, titleAsString);
else
painter.drawText(m_skin->titleBarTextPosition(), titleAsString);
painter.end();
}
void TitleBar::mouseMoveEvent(QMouseEvent *event)
{
if (event->buttons() == Qt::LeftButton) {
// Dynamic cast needed to use getDesktopGeometry()
MainWindow *window = dynamic_cast<MainWindow *>(parent());
int maxHeight = window->getDesktopGeometry().height();
int newHeight = event->globalPosition().y() / (maxHeight / 100);
// Correct newHeight if mouse is dragged too far
if (newHeight > 100) {
newHeight = 100;
} else if (newHeight < 10) {
newHeight = 10;
}
window->setWindowHeight(newHeight);
} else {
QWidget::mouseMoveEvent(event);
}
}
void TitleBar::updateMask()
{
const QPixmap &leftCornerImage = m_skin->titleBarLeftCornerImage();
const QPixmap &rightCornerImage = m_skin->titleBarRightCornerImage();
QRegion leftCornerRegion = leftCornerImage.hasAlpha() ? QRegion(leftCornerImage.mask()) : QRegion(leftCornerImage.rect());
QRegion rightCornerRegion = rightCornerImage.hasAlpha() ? QRegion(rightCornerImage.mask()) : QRegion(rightCornerImage.rect());
QRegion mask = leftCornerRegion;
mask += QRegion(QRect(0, 0, width() - leftCornerImage.width() - rightCornerImage.width(), height())).translated(leftCornerImage.width(), 0);
mask += rightCornerRegion.translated(width() - rightCornerImage.width(), 0);
setMask(mask);
}
void TitleBar::updateMenu()
{
m_menuButton->setMenu(m_mainWindow->menu());
}
void TitleBar::setFocusButtonState(bool checked)
{
m_focusButton->setChecked(checked);
}
QString TitleBar::title() const
{
if (!m_skin->titleBarText().isEmpty() && !m_title.isEmpty())
return m_title + QStringLiteral(" - ") + m_skin->titleBarText();
else if (!m_skin->titleBarText().isEmpty() && m_title.isEmpty())
return m_skin->titleBarText();
else
return m_title;
}
void TitleBar::setTitle(const QString &title)
{
m_title = title;
repaint();
}
#include "moc_titlebar.cpp"
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