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lxqt-panel-packaging/panel/lxqtpanel.cpp

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/* BEGIN_COMMON_COPYRIGHT_HEADER
* (c)LGPL2+
*
* LXDE-Qt - a lightweight, Qt based, desktop toolset
* http://razor-qt.org
*
* Copyright: 2010-2011 Razor team
* Authors:
* Alexander Sokoloff <sokoloff.a@gmail.com>
*
* This program or library is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* END_COMMON_COPYRIGHT_HEADER */
#include "lxqtpanel.h"
#include "lxqtpanellimits.h"
#include "ilxqtpanelplugin.h"
#include "lxqtpanelapplication.h"
#include "lxqtpanellayout.h"
#include "config/configpaneldialog.h"
#include "popupmenu.h"
#include "plugin.h"
#include <LXQt/AddPluginDialog>
#include <LXQt/Settings>
#include <LXQt/PluginInfo>
#include <QScreen>
#include <QWindow>
#include <QX11Info>
#include <QDebug>
#include <QString>
#include <QDesktopWidget>
#include <QMenu>
#include <XdgIcon>
#include <XdgDirs>
#include <KF5/KWindowSystem/KWindowSystem>
#include <KF5/KWindowSystem/NETWM>
// Config keys and groups
#define CFG_KEY_SCREENNUM "desktop"
#define CFG_KEY_POSITION "position"
#define CFG_KEY_PANELSIZE "panelSize"
#define CFG_KEY_ICONSIZE "iconSize"
#define CFG_KEY_LINECNT "lineCount"
#define CFG_KEY_LENGTH "width"
#define CFG_KEY_PERCENT "width-percent"
#define CFG_KEY_ALIGNMENT "alignment"
#define CFG_KEY_FONTCOLOR "font-color"
#define CFG_KEY_BACKGROUNDCOLOR "background-color"
#define CFG_KEY_BACKGROUNDIMAGE "background-image"
#define CFG_KEY_OPACITY "opacity"
#define CFG_KEY_PLUGINS "plugins"
/************************************************
Returns the Position by the string.
String is one of "Top", "Left", "Bottom", "Right", string is not case sensitive.
If the string is not correct, returns defaultValue.
************************************************/
ILxQtPanel::Position LxQtPanel::strToPosition(const QString& str, ILxQtPanel::Position defaultValue)
{
if (str.toUpper() == "TOP") return LxQtPanel::PositionTop;
if (str.toUpper() == "LEFT") return LxQtPanel::PositionLeft;
if (str.toUpper() == "RIGHT") return LxQtPanel::PositionRight;
if (str.toUpper() == "BOTTOM") return LxQtPanel::PositionBottom;
return defaultValue;
}
/************************************************
Return string representation of the position
************************************************/
QString LxQtPanel::positionToStr(ILxQtPanel::Position position)
{
switch (position)
{
case LxQtPanel::PositionTop:
return QString("Top");
case LxQtPanel::PositionLeft:
return QString("Left");
case LxQtPanel::PositionRight:
return QString("Right");
case LxQtPanel::PositionBottom:
return QString("Bottom");
}
return QString();
}
/************************************************
************************************************/
LxQtPanel::LxQtPanel(const QString &configGroup, QWidget *parent) :
QFrame(parent),
mConfigGroup(configGroup),
mPanelSize(0),
mIconSize(0),
mLineCount(0),
mLength(0),
mAlignment(AlignmentLeft),
mPosition(ILxQtPanel::PositionBottom)
{
Qt::WindowFlags flags = Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint;
// NOTE: by PCMan:
// In Qt 4, the window is not activated if it has Qt::WA_X11NetWmWindowTypeDock.
// Since Qt 5, the default behaviour is changed. A window is always activated on mouse click.
// Please see the source code of Qt5: src/plugins/platforms/xcb/qxcbwindow.cpp.
// void QXcbWindow::handleButtonPressEvent(const xcb_button_press_event_t *event)
// This new behaviour caused lxqt bug #161 - Cannot minimize windows from panel 1 when two task managers are open
// Besides, this breaks minimizing or restoring windows when clicking on the taskbar buttons.
// To workaround this regression bug, we need to add this window flag here.
// However, since the panel gets no keyboard focus, this may decrease accessibility since
// it's not possible to use the panel with keyboards. We need to find a better solution later.
flags |= Qt::WindowDoesNotAcceptFocus;
setWindowFlags(flags);
setAttribute(Qt::WA_X11NetWmWindowTypeDock);
setAttribute(Qt::WA_AlwaysShowToolTips);
setAttribute(Qt::WA_TranslucentBackground);
setWindowTitle("LxQt Panel");
setObjectName(QString("LxQtPanel %1").arg(configGroup));
LxQtPanelWidget = new QFrame(this);
LxQtPanelWidget->setObjectName("BackgroundWidget");
QGridLayout* lav = new QGridLayout();
lav->setContentsMargins(QMargins(0,0,0,0));
setLayout(lav);
this->layout()->addWidget(LxQtPanelWidget);
mLayout = new LxQtPanelLayout(LxQtPanelWidget);
connect(mLayout, SIGNAL(pluginMoved()), this, SLOT(pluginMoved()));
LxQtPanelWidget->setLayout(mLayout);
mLayout->setLineCount(mLineCount);
mDelaySave.setSingleShot(true);
mDelaySave.setInterval(SETTINGS_SAVE_DELAY);
connect(&mDelaySave, SIGNAL(timeout()), this, SLOT(saveSettings()));
connect(QApplication::desktop(), SIGNAL(resized(int)), this, SLOT(realign()));
connect(QApplication::desktop(), SIGNAL(screenCountChanged(int)), this, SLOT(ensureVisible()));
connect(LxQt::Settings::globalSettings(), SIGNAL(settingsChanged()), this, SLOT(update()));
connect(lxqtApp, SIGNAL(themeChanged()), this, SLOT(realign()));
LxQtPanelApplication *app = reinterpret_cast<LxQtPanelApplication*>(qApp);
mSettings = app->settings();
readSettings();
// the old position might be on a visible screen
ensureVisible();
loadPlugins();
show();
}
/************************************************
************************************************/
void LxQtPanel::readSettings()
{
// Read settings ......................................
mSettings->beginGroup(mConfigGroup);
// By default we are using size & count from theme.
setPanelSize(mSettings->value(CFG_KEY_PANELSIZE, PANEL_DEFAULT_SIZE).toInt(), false);
setIconSize(mSettings->value(CFG_KEY_ICONSIZE, PANEL_DEFAULT_ICON_SIZE).toInt(), false);
setLineCount(mSettings->value(CFG_KEY_LINECNT, PANEL_DEFAULT_LINE_COUNT).toInt(), false);
setLength(mSettings->value(CFG_KEY_LENGTH, 100).toInt(),
mSettings->value(CFG_KEY_PERCENT, true).toBool(),
false);
setPosition(mSettings->value(CFG_KEY_SCREENNUM, QApplication::desktop()->primaryScreen()).toInt(),
strToPosition(mSettings->value(CFG_KEY_POSITION).toString(), PositionBottom),
false);
setAlignment(Alignment(mSettings->value(CFG_KEY_ALIGNMENT, mAlignment).toInt()), false);
QColor color = mSettings->value(CFG_KEY_FONTCOLOR, "").value<QColor>();
if (color.isValid())
setFontColor(color, true);
setOpacity(mSettings->value(CFG_KEY_OPACITY, 100).toInt(), true);
color = mSettings->value(CFG_KEY_BACKGROUNDCOLOR, "").value<QColor>();
if (color.isValid())
setBackgroundColor(color, true);
QString image = mSettings->value(CFG_KEY_BACKGROUNDIMAGE, "").toString();
if (!image.isEmpty())
setBackgroundImage(image, false);
mSettings->endGroup();
}
/************************************************
************************************************/
void LxQtPanel::saveSettings(bool later)
{
mDelaySave.stop();
if (later)
{
mDelaySave.start();
return;
}
QStringList pluginsList;
mSettings->beginGroup(mConfigGroup);
foreach (const Plugin *plugin, mPlugins)
pluginsList << plugin->settingsGroup();
mSettings->setValue(CFG_KEY_PLUGINS, (pluginsList.isEmpty() ? "" : QVariant(pluginsList)));
mSettings->setValue(CFG_KEY_PANELSIZE, mPanelSize);
mSettings->setValue(CFG_KEY_ICONSIZE, mIconSize);
mSettings->setValue(CFG_KEY_LINECNT, mLineCount);
mSettings->setValue(CFG_KEY_LENGTH, mLength);
mSettings->setValue(CFG_KEY_PERCENT, mLengthInPercents);
mSettings->setValue(CFG_KEY_SCREENNUM, mScreenNum);
mSettings->setValue(CFG_KEY_POSITION, positionToStr(mPosition));
mSettings->setValue(CFG_KEY_ALIGNMENT, mAlignment);
mSettings->setValue(CFG_KEY_FONTCOLOR, mFontColor.isValid() ? mFontColor : QColor());
mSettings->setValue(CFG_KEY_BACKGROUNDCOLOR, mBackgroundColor.isValid() ? mBackgroundColor : QColor());
mSettings->setValue(CFG_KEY_BACKGROUNDIMAGE, QFileInfo(mBackgroundImage).exists() ? mBackgroundImage : QString());
mSettings->setValue(CFG_KEY_OPACITY, mOpacity);
mSettings->endGroup();
}
/************************************************
************************************************/
void LxQtPanel::ensureVisible()
{
if (!canPlacedOn(mScreenNum, mPosition))
setPosition(findAvailableScreen(mPosition), mPosition, true);
// the screen size might be changed, let's update the reserved screen space.
updateWmStrut();
}
/************************************************
************************************************/
LxQtPanel::~LxQtPanel()
{
mLayout->setEnabled(false);
// do not save settings because of "user deleted panel" functionality saveSettings();
qDeleteAll(mPlugins);
}
/************************************************
************************************************/
void LxQtPanel::show()
{
QWidget::show();
KWindowSystem::setOnDesktop(effectiveWinId(), NET::OnAllDesktops);
}
/************************************************
************************************************/
QStringList pluginDesktopDirs()
{
QStringList dirs;
dirs << QString(getenv("LXQT_PANEL_PLUGINS_DIR")).split(':', QString::SkipEmptyParts);
dirs << QString("%1/%2").arg(XdgDirs::dataHome(), "/lxqt/lxqt-panel");
dirs << PLUGIN_DESKTOPS_DIR;
return dirs;
}
/************************************************
************************************************/
void LxQtPanel::loadPlugins()
{
QStringList desktopDirs = pluginDesktopDirs();
mSettings->beginGroup(mConfigGroup);
QStringList sections = mSettings->value(CFG_KEY_PLUGINS).toStringList();
mSettings->endGroup();
foreach (QString sect, sections)
{
QString type = mSettings->value(sect+"/type").toString();
if (type.isEmpty())
{
qWarning() << QString("Section \"%1\" not found in %2.").arg(sect, mSettings->fileName());
continue;
}
LxQt::PluginInfoList list = LxQt::PluginInfo::search(desktopDirs, "LxQtPanel/Plugin", QString("%1.desktop").arg(type));
if( !list.count())
{
qWarning() << QString("Plugin \"%1\" not found.").arg(type);
continue;
}
loadPlugin(list.first(), sect);
}
}
/************************************************
************************************************/
Plugin *LxQtPanel::loadPlugin(const LxQt::PluginInfo &desktopFile, const QString &settingsGroup)
{
Plugin *plugin = new Plugin(desktopFile, mSettings->fileName(), settingsGroup, this);
if (plugin->isLoaded())
{
mPlugins.append(plugin);
connect(plugin, SIGNAL(startMove()), mLayout, SLOT(startMovePlugin()));
connect(plugin, SIGNAL(remove()), this, SLOT(removePlugin()));
connect(this, SIGNAL(realigned()), plugin, SLOT(realign()));
mLayout->addWidget(plugin);
return plugin;
}
delete plugin;
return 0;
}
/************************************************
************************************************/
void LxQtPanel::realign()
{
if (!isVisible())
return;
#if 0
qDebug() << "** Realign *********************";
qDebug() << "PanelSize: " << mPanelSize;
qDebug() << "IconSize: " << mIconSize;
qDebug() << "LineCount: " << mLineCount;
qDebug() << "Length: " << mLength << (mLengthInPercents ? "%" : "px");
qDebug() << "Alignment: " << (mAlignment == 0 ? "center" : (mAlignment < 0 ? "left" : "right"));
qDebug() << "Position: " << positionToStr(mPosition) << "on" << mScreenNum;
qDebug() << "Plugins count: " << mPlugins.count();
#endif
const QRect currentScreen = QApplication::desktop()->screenGeometry(mScreenNum);
QSize size = sizeHint();
QRect rect;
if (isHorizontal())
{
// Horiz panel ***************************
size.setHeight(mPanelSize);
// Size .......................
rect.setHeight(qMax(PANEL_MINIMUM_SIZE, size.height()));
if (mLengthInPercents)
rect.setWidth(currentScreen.width() * mLength / 100.0);
else
{
if (mLength <= 0)
rect.setWidth(currentScreen.width() + mLength);
else
rect.setWidth(mLength);
}
rect.setWidth(qMax(rect.size().width(), mLayout->minimumSize().width()));
// Horiz ......................
switch (mAlignment)
{
case LxQtPanel::AlignmentLeft:
rect.moveLeft(currentScreen.left());
break;
case LxQtPanel::AlignmentCenter:
rect.moveCenter(currentScreen.center());
break;
case LxQtPanel::AlignmentRight:
rect.moveRight(currentScreen.right());
break;
}
// Vert .......................
if (mPosition == ILxQtPanel::PositionTop)
rect.moveTop(currentScreen.top());
else
rect.moveBottom(currentScreen.bottom());
}
else
{
// Vert panel ***************************
size.setWidth(mPanelSize);
// Size .......................
rect.setWidth(qMax(PANEL_MINIMUM_SIZE, size.width()));
if (mLengthInPercents)
rect.setHeight(currentScreen.height() * mLength / 100.0);
else
{
if (mLength <= 0)
rect.setHeight(currentScreen.height() + mLength);
else
rect.setHeight(mLength);
}
rect.setHeight(qMax(rect.size().height(), mLayout->minimumSize().height()));
// Vert .......................
switch (mAlignment)
{
case LxQtPanel::AlignmentLeft:
rect.moveTop(currentScreen.top());
break;
case LxQtPanel::AlignmentCenter:
rect.moveCenter(currentScreen.center());
break;
case LxQtPanel::AlignmentRight:
rect.moveBottom(currentScreen.bottom());
break;
}
// Horiz ......................
if (mPosition == ILxQtPanel::PositionLeft)
rect.moveLeft(currentScreen.left());
else
rect.moveRight(currentScreen.right());
}
if (rect != geometry())
{
setGeometry(rect);
setFixedSize(rect.size());
}
// Reserve our space on the screen ..........
// It's possible that our geometry is not changed, but screen resolution is changed,
// so resetting WM_STRUT is still needed. To make it simple, we always do it.
updateWmStrut();
}
// Update the _NET_WM_PARTIAL_STRUT and _NET_WM_STRUT properties for the window
void LxQtPanel::updateWmStrut()
{
WId wid = effectiveWinId();
if(wid == 0 || !isVisible())
return;
const QRect wholeScreen = QApplication::desktop()->geometry();
// qDebug() << "wholeScreen" << wholeScreen;
const QRect rect = geometry();
// NOTE: http://standards.freedesktop.org/wm-spec/wm-spec-latest.html
// Quote from the EWMH spec: " Note that the strut is relative to the screen edge, and not the edge of the xinerama monitor."
// So, we use the geometry of the whole screen to calculate the strut rather than using the geometry of individual monitors.
// Though the spec only mention Xinerama and did not mention XRandR, the rule should still be applied.
// At least openbox is implemented like this.
switch (mPosition)
{
case LxQtPanel::PositionTop:
KWindowSystem::setExtendedStrut(wid,
/* Left */ 0, 0, 0,
/* Right */ 0, 0, 0,
/* Top */ height(), rect.left(), rect.right(),
/* Bottom */ 0, 0, 0
);
break;
case LxQtPanel::PositionBottom:
KWindowSystem::setExtendedStrut(wid,
/* Left */ 0, 0, 0,
/* Right */ 0, 0, 0,
/* Top */ 0, 0, 0,
/* Bottom */ wholeScreen.bottom() - rect.y(), rect.left(), rect.right()
);
break;
case LxQtPanel::PositionLeft:
KWindowSystem::setExtendedStrut(wid,
/* Left */ width(), rect.top(), rect.bottom(),
/* Right */ 0, 0, 0,
/* Top */ 0, 0, 0,
/* Bottom */ 0, 0, 0
);
break;
case LxQtPanel::PositionRight:
KWindowSystem::setExtendedStrut(wid,
/* Left */ 0, 0, 0,
/* Right */ wholeScreen.right() - rect.x(), rect.top(), rect.bottom(),
/* Top */ 0, 0, 0,
/* Bottom */ 0, 0, 0
);
break;
}
}
/************************************************
The panel can't be placed on boundary of two displays.
This function checks, is the panel can be placed on the display
@displayNum on @position.
************************************************/
bool LxQtPanel::canPlacedOn(int screenNum, LxQtPanel::Position position)
{
QDesktopWidget* dw = QApplication::desktop();
switch (position)
{
case LxQtPanel::PositionTop:
for (int i = 0; i < dw->screenCount(); ++i)
if (dw->screenGeometry(i).bottom() < dw->screenGeometry(screenNum).top())
return false;
return true;
case LxQtPanel::PositionBottom:
for (int i = 0; i < dw->screenCount(); ++i)
if (dw->screenGeometry(i).top() > dw->screenGeometry(screenNum).bottom())
return false;
return true;
case LxQtPanel::PositionLeft:
for (int i = 0; i < dw->screenCount(); ++i)
if (dw->screenGeometry(i).right() < dw->screenGeometry(screenNum).left())
return false;
return true;
case LxQtPanel::PositionRight:
for (int i = 0; i < dw->screenCount(); ++i)
if (dw->screenGeometry(i).left() > dw->screenGeometry(screenNum).right())
return false;
return true;
}
return false;
}
/************************************************
************************************************/
int LxQtPanel::findAvailableScreen(LxQtPanel::Position position)
{
int current = mScreenNum;
for (int i = current; i < QApplication::desktop()->screenCount(); ++i)
if (canPlacedOn(i, position))
return i;
for (int i = 0; i < current; ++i)
if (canPlacedOn(i, position))
return i;
return 0;
}
/************************************************
************************************************/
void LxQtPanel::showConfigDialog()
{
ConfigPanelDialog::exec(this);
}
/************************************************
************************************************/
void LxQtPanel::showAddPluginDialog()
{
LxQt::AddPluginDialog *dialog = findChild<LxQt::AddPluginDialog *>();
if (!dialog)
{
dialog = new LxQt::AddPluginDialog(pluginDesktopDirs(), "LxQtPanel/Plugin", "*", this);
dialog->setWindowTitle(tr("Add Panel Widgets"));
dialog->setAttribute(Qt::WA_DeleteOnClose);
connect(dialog, SIGNAL(pluginSelected(const LxQt::PluginInfo&)), this, SLOT(addPlugin(const LxQt::PluginInfo&)));
connect(this, SIGNAL(pluginAdded(QString)), dialog, SLOT(pluginAdded(const QString &)));
connect(this, SIGNAL(pluginRemoved(QString)), dialog, SLOT(pluginRemoved(const QString &)));
}
QStringList pluginsInUseIDs;
foreach (Plugin *i, mPlugins)
pluginsInUseIDs << i->desktopFile().id();
dialog->setPluginsInUse(pluginsInUseIDs);
dialog->show();
KWindowSystem::setOnDesktop(dialog->effectiveWinId(), KWindowSystem::currentDesktop());
}
/************************************************
************************************************/
void LxQtPanel::addPlugin(const LxQt::PluginInfo &desktopFile)
{
QString settingsGroup = findNewPluginSettingsGroup(desktopFile.id());
loadPlugin(desktopFile, settingsGroup);
saveSettings(true);
realign();
emit realigned();
emit pluginAdded(desktopFile.id());
}
/************************************************
************************************************/
void LxQtPanel::updateStyleSheet()
{
QStringList sheet;
sheet << QString("Plugin > * { qproperty-iconSize: %1px %1px; }").arg(mIconSize);
sheet << QString("Plugin > * > * { qproperty-iconSize: %1px %1px; }").arg(mIconSize);
if (mFontColor.isValid())
sheet << QString("Plugin * { color: " + mFontColor.name() + "; }");
QString object = LxQtPanelWidget->objectName();
if (mBackgroundColor.isValid())
{
QString color = QString("%1, %2, %3, %4")
.arg(mBackgroundColor.red())
.arg(mBackgroundColor.green())
.arg(mBackgroundColor.blue())
.arg((float) mOpacity / 100);
sheet << QString("LxQtPanel #BackgroundWidget { background-color: rgba(" + color + "); }");
}
if (QFileInfo(mBackgroundImage).exists())
sheet << QString("LxQtPanel #BackgroundWidget { background-image: url('" + mBackgroundImage + "');}");
setStyleSheet(sheet.join("\n"));
}
/************************************************
************************************************/
void LxQtPanel::setPanelSize(int value, bool save)
{
if (mPanelSize != value)
{
mPanelSize = value;
realign();
emit realigned();
if (save)
saveSettings(true);
}
}
/************************************************
************************************************/
void LxQtPanel::setIconSize(int value, bool save)
{
if (mIconSize != value)
{
mIconSize = value;
updateStyleSheet();
mLayout->setLineSize(mIconSize);
if (save)
saveSettings(true);
realign();
emit realigned();
}
}
/************************************************
************************************************/
void LxQtPanel::setLineCount(int value, bool save)
{
if (mLineCount != value)
{
mLineCount = value;
mLayout->setEnabled(false);
mLayout->setLineCount(mLineCount);
mLayout->setEnabled(true);
if (save)
saveSettings(true);
realign();
emit realigned();
}
}
/************************************************
************************************************/
void LxQtPanel::setLength(int length, bool inPercents, bool save)
{
if (mLength == length &&
mLengthInPercents == inPercents)
return;
mLength = length;
mLengthInPercents = inPercents;
if (save)
saveSettings(true);
realign();
emit realigned();
}
/************************************************
************************************************/
void LxQtPanel::setPosition(int screen, ILxQtPanel::Position position, bool save)
{
if (mScreenNum == screen &&
mPosition == position)
return;
mScreenNum = screen;
mPosition = position;
mLayout->setPosition(mPosition);
if (save)
saveSettings(true);
// Qt 5 adds a new class QScreen and add API for setting the screen of a QWindow.
// so we had better use it. However, without this, our program should still work
// as long as XRandR is used. Since XRandR combined all screens into a large virtual desktop
// every screen and their virtual siblings are actually on the same virtual desktop.
// So things still work if we don't set the screen correctly, but this is not the case
// for other backends, such as the upcoming wayland support. Hence it's better to set it.
if(windowHandle())
{
// QScreen* newScreen = qApp->screens().at(screen);
// QScreen* oldScreen = windowHandle()->screen();
// const bool shouldRecreate = windowHandle()->handle() && !(oldScreen && oldScreen->virtualSiblings().contains(newScreen));
// Q_ASSERT(shouldRecreate == false);
// NOTE: When you move a window to another screen, Qt 5 might recreate the window as needed
// But luckily, this never happen in XRandR, so Qt bug #40681 is not triggered here.
// (The only exception is when the old screen is destroyed, Qt always re-create the window and
// this corner case triggers #40681.)
// When using other kind of multihead settings, such as Xinerama, this might be different and
// unless Qt developers can fix their bug, we have no way to workaround that.
windowHandle()->setScreen(qApp->screens().at(screen));
}
realign();
emit realigned();
}
/************************************************
*
************************************************/
void LxQtPanel::setAlignment(Alignment value, bool save)
{
if (mAlignment == value)
return;
mAlignment = value;
if (save)
saveSettings(true);
realign();
emit realigned();
}
/************************************************
*
************************************************/
void LxQtPanel::setFontColor(QColor color, bool save)
{
mFontColor = color;
updateStyleSheet();
if (save)
saveSettings(true);
}
/************************************************
************************************************/
void LxQtPanel::setBackgroundColor(QColor color, bool save)
{
mBackgroundColor = color;
updateStyleSheet();
if (save)
saveSettings(true);
}
/************************************************
************************************************/
void LxQtPanel::setBackgroundImage(QString path, bool save)
{
mBackgroundImage = path;
updateStyleSheet();
if (save)
saveSettings(true);
}
/************************************************
*
************************************************/
void LxQtPanel::setOpacity(int opacity, bool save)
{
mOpacity = opacity;
updateStyleSheet();
if (save)
saveSettings(true);
}
/************************************************
************************************************/
QRect LxQtPanel::globalGometry() const
{
return QRect(mapToGlobal(QPoint(0, 0)), this->size());
}
/************************************************
************************************************/
bool LxQtPanel::event(QEvent *event)
{
switch (event->type())
{
case QEvent::ContextMenu:
showPopupMenu();
break;
case QEvent::LayoutRequest:
realign();
emit realigned();
break;
case QEvent::WinIdChange:
{
// qDebug() << "WinIdChange" << hex << effectiveWinId();
if(effectiveWinId() == 0)
break;
// Sometimes Qt needs to re-create the underlying window of the widget and
// the winId() may be changed at runtime. So we need to reset all X11 properties
// when this happens.
qDebug() << "WinIdChange" << hex << effectiveWinId() << "handle" << windowHandle() << windowHandle()->screen();
// Qt::WA_X11NetWmWindowTypeDock becomes ineffective in Qt 5
// See QTBUG-39887: https://bugreports.qt-project.org/browse/QTBUG-39887
// Let's do it manually
NETWinInfo info(QX11Info::connection(), effectiveWinId(), QX11Info::appRootWindow(), NET::WMWindowType, 0);
info.setWindowType(NET::Dock);
updateWmStrut(); // reserve screen space for the panel
KWindowSystem::setOnAllDesktops(effectiveWinId(), true);
break;
}
default:
break;
}
return QFrame::event(event);
}
/************************************************
************************************************/
void LxQtPanel::showEvent(QShowEvent *event)
{
QFrame::showEvent(event);
realign();
emit realigned();
}
/************************************************
************************************************/
void LxQtPanel::showPopupMenu(Plugin *plugin)
{
QList<QMenu*> pluginsMenus;
PopupMenu menu(tr("Panel"));
menu.setIcon(XdgIcon::fromTheme("configure-toolbars"));
// Plugin Menu ..............................
if (plugin)
{
QMenu *m = plugin->popupMenu();
if (m)
{
menu.addTitle(plugin->windowTitle());
menu.addActions(m->actions());
pluginsMenus << m;
}
}
// Panel menu ...............................
menu.addTitle(QIcon(), tr("Panel"));
menu.addAction(XdgIcon::fromTheme(QStringLiteral("configure")),
tr("Configure Panel..."),
this, SLOT(showConfigDialog())
);
menu.addAction(XdgIcon::fromTheme("preferences-plugin"),
tr("Add Panel Widgets..."),
this, SLOT(showAddPluginDialog())
);
LxQtPanelApplication *a = reinterpret_cast<LxQtPanelApplication*>(qApp);
menu.addAction(XdgIcon::fromTheme(QLatin1String("list-add")),
tr("Add Panel"),
a, SLOT(addNewPanel())
);
if (a->count() > 1)
{
menu.addAction(XdgIcon::fromTheme(QStringLiteral("list-remove")),
tr("Remove Panel"),
this, SLOT(userRequestForDeletion())
);
}
#ifdef DEBUG
menu.addSeparator();
menu.addAction("Exit (debug only)", qApp, SLOT(quit()));
#endif
menu.exec(QCursor::pos());
qDeleteAll(pluginsMenus);
}
/************************************************
************************************************/
Plugin *LxQtPanel::findPlugin(const ILxQtPanelPlugin *iPlugin) const
{
foreach(Plugin *plugin, mPlugins)
{
if (plugin->iPlugin() == iPlugin)
return plugin;
}
return 0;
}
/************************************************
************************************************/
QRect LxQtPanel::calculatePopupWindowPos(const ILxQtPanelPlugin *plugin, const QSize &windowSize) const
{
Plugin *panelPlugin = findPlugin(plugin);
if (!plugin)
return QRect();
int x=0, y=0;
switch (position())
{
case ILxQtPanel::PositionTop:
x = panelPlugin->mapToGlobal(QPoint(0, 0)).x();
y = globalGometry().bottom();
break;
case ILxQtPanel::PositionBottom:
x = panelPlugin->mapToGlobal(QPoint(0, 0)).x();
y = globalGometry().top() - windowSize.height();
break;
case ILxQtPanel::PositionLeft:
x = globalGometry().right();
y = panelPlugin->mapToGlobal(QPoint(0, 0)).y();
break;
case ILxQtPanel::PositionRight:
x = globalGometry().left() - windowSize.width();
y = panelPlugin->mapToGlobal(QPoint(0, 0)).y();
break;
}
QRect res(QPoint(x, y), windowSize);
QRect screen = QApplication::desktop()->screenGeometry(this);
// NOTE: We cannot use AvailableGeometry() which returns the work area here because when in a
// multihead setup with different resolutions. In this case, the size of the work area is limited
// by the smallest monitor and may be much smaller than the current screen and we will place the
// menu at the wrong place. This is very bad for UX. So let's use the full size of the screen.
if (res.right() > screen.right())
res.moveRight(screen.right());
if (res.bottom() > screen.bottom())
res.moveBottom(screen.bottom());
if (res.left() < screen.left())
res.moveLeft(screen.left());
if (res.top() < screen.top())
res.moveTop(screen.top());
return res;
}
/************************************************
************************************************/
QString LxQtPanel::qssPosition() const
{
return positionToStr(position());
}
/************************************************
************************************************/
QString LxQtPanel::findNewPluginSettingsGroup(const QString &pluginType) const
{
QStringList groups = mSettings->childGroups();
groups.sort();
// Generate new section name
for (int i = 2; true; ++i)
if (!groups.contains(QString("%1%2").arg(pluginType).arg(i)))
return QString("%1%2").arg(pluginType).arg(i);
}
/************************************************
************************************************/
void LxQtPanel::removePlugin()
{
Plugin *plugin = qobject_cast<Plugin*>(sender());
QString id;
if (plugin)
{
mSettings->remove(plugin->settingsGroup());
id = mPlugins.takeAt(mPlugins.indexOf(plugin))->desktopFile().id();
}
saveSettings();
emit pluginRemoved(id);
}
/************************************************
************************************************/
void LxQtPanel::pluginMoved()
{
mPlugins.clear();
for (int i=0; i<mLayout->count(); ++i)
{
Plugin *plugin = qobject_cast<Plugin*>(mLayout->itemAt(i)->widget());
if (plugin)
mPlugins << plugin;
}
saveSettings();
}
/************************************************
************************************************/
void LxQtPanel::userRequestForDeletion()
{
mSettings->beginGroup(mConfigGroup);
QStringList plugins = mSettings->value("plugins").toStringList();
mSettings->endGroup();
Q_FOREACH(QString i, plugins)
if (!i.isEmpty())
mSettings->remove(i);
mSettings->remove(mConfigGroup);
emit deletedByUser(this);
}
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