anipaper: new animated images wallpaper

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>

CMakeLists.txt

@@ -32,3 +32,4 @@ macro_optional_add_subdirectory (kfirewall)
 macro_optional_add_subdirectory (khash)
 macro_optional_add_subdirectory (kprintjobs)
 macro_optional_add_subdirectory (xwallpaper)
+macro_optional_add_subdirectory (anipaper)

anipaper/CMakeLists.txt

@@ -0,0 +1,26 @@
+project(plasma-wallpaper-anipaper)
+
+if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
+    include(FeatureSummary)
+
+    find_package(KDELibs4 4.23.0 REQUIRED)
+
+    include_directories(${KDE4_INCLUDES})
+    add_definitions(${QT_DEFINITIONS} ${KDE4_DEFINITIONS})
+endif()
+
+set(anipaper_SRCS
+    anipaper.cpp
+)
+
+kde4_add_plugin(plasma_wallpaper_anipaper ${anipaper_SRCS})
+target_link_libraries(plasma_wallpaper_anipaper KDE4::plasma KDE4::kdeui)
+
+install(
+    TARGETS plasma_wallpaper_anipaper
+    DESTINATION ${KDE4_PLUGIN_INSTALL_DIR}
+)
+install(
+    FILES plasma-wallpaper-anipaper.desktop
+    DESTINATION ${KDE4_SERVICES_INSTALL_DIR}
+)

anipaper/anipaper.cpp

@@ -0,0 +1,65 @@
+/*  This file is part of the KDE project
+    Copyright (C) 2023 Ivailo Monev <xakepa10@gmail.com>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License version 2, as published by the Free Software Foundation.
+
+    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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#include "anipaper.h"
+
+#include <KDebug>
+
+static const QString s_image = QString::fromLatin1("/home/smil3y/katana/kde-samples/image/3.webp");
+static const Qt::AspectRatioMode s_aspect = Qt::KeepAspectRatio;
+
+AniPaper::AniPaper(QObject *parent, const QVariantList &args)
+    : Plasma::Wallpaper(parent, args),
+    m_timer(nullptr),
+    m_imagereader(s_image)
+{
+    if (m_imagereader.imageCount() <= 0) {
+        kWarning() << "No images in" << s_image;
+        return;
+    } else {
+        kDebug() << "Started" << s_image << m_imagereader.nextImageDelay();
+    }
+
+    m_timer = new QTimer(this);
+    m_timer->setInterval(m_imagereader.nextImageDelay());
+    connect(m_timer, SIGNAL(timeout()), this, SLOT(slotTimeout()));
+    m_timer->start();
+}
+
+AniPaper::~AniPaper()
+{
+    m_timer->stop();
+}
+
+void AniPaper::paint(QPainter *painter, const QRectF &exposedRect)
+{
+    const QSize tsize = targetSizeHint().toSize();
+    QImage frame = m_imagereader.read().scaled(tsize, s_aspect, Qt::SmoothTransformation);
+    const QSize fsize = frame.size();
+    const QPoint offset = (QPoint(tsize.width() - fsize.width(), tsize.height() - fsize.height()) / 2);
+    kDebug() << "Rendering" << s_image << tsize << offset;
+    painter->drawImage(offset, frame);
+}
+
+void AniPaper::slotTimeout()
+{
+    m_imagereader.jumpToNextImage();
+    emit update(QRectF());
+}
+
+#include "moc_anipaper.cpp"

anipaper/anipaper.h

@@ -0,0 +1,47 @@
+/*  This file is part of the KDE project
+    Copyright (C) 2023 Ivailo Monev <xakepa10@gmail.com>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License version 2, as published by the Free Software Foundation.
+
+    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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#ifndef ANIPAPER_H
+#define ANIPAPER_H
+
+#include <QTimer>
+#include <QImageReader>
+#include <Plasma/Wallpaper>
+#include <Plasma/DataEngine>
+
+class AniPaper : public Plasma::Wallpaper
+{
+    Q_OBJECT
+
+public:
+    AniPaper(QObject *parent, const QVariantList &args);
+    ~AniPaper();
+
+    void paint(QPainter* painter, const QRectF &exposedRect);
+
+private Q_SLOTS:
+    void slotTimeout();
+
+private:
+    QTimer* m_timer;
+    QImageReader m_imagereader;
+};
+
+K_EXPORT_PLASMA_WALLPAPER(anipaper, AniPaper)
+
+#endif // ANIPAPER_H

anipaper/plasma-wallpaper-anipaper.desktop

@@ -0,0 +1,17 @@
+[Desktop Entry]
+Name=Animated image wallpaper
+Comment=Animated image wallpaper
+Type=Service
+Icon=tool-animator
+ServiceTypes=Plasma/Wallpaper
+
+X-KDE-Library=plasma_wallpaper_anipaper
+X-KDE-PluginInfo-Author=Ivailo Monev
+X-KDE-PluginInfo-Email=xakepa10@gmail.com
+X-KDE-PluginInfo-Name=org.kde.anipaper
+X-KDE-PluginInfo-Version=0.1
+X-KDE-PluginInfo-Website=
+X-KDE-PluginInfo-Depends=
+X-KDE-PluginInfo-License=GPL
+X-KDE-PluginInfo-EnabledByDefault=true
+

xwallpaper/xwallpaper.cpp

@@ -34,7 +34,7 @@ XWallpaper::XWallpaper(QObject *parent, const QVariantList &args)
 {
     m_widget = new QWidget(nullptr, Qt::X11BypassWindowManagerHint);
     // move it outside the screen space, should the resolution change the widget may be visible but
-    // neither rendering nor grabbing the window works without the winodow being visible
+    // neither rendering nor grabbing the window works without the window being visible
     const QRect trect = QApplication::desktop()->geometry();
     m_widget->move(trect.bottom(), trect.right());
     m_widget->show();
@@ -67,8 +67,8 @@ XWallpaper::~XWallpaper()
 
 void XWallpaper::paint(QPainter *painter, const QRectF &exposedRect)
 {
-    kDebug() << "Rendering" << s_xscreensaver << targetSizeHint().toSize();
     const QSize tsize = targetSizeHint().toSize();
+    kDebug() << "Rendering" << s_xscreensaver << tsize;
     m_widget->resize(tsize.width(), tsize.height());
     painter->drawPixmap(QPoint(), QPixmap::grabWindow(m_widget->winId()));
 }